Relevant bibliographies by topics / Polypropylene nanocomposite

Academic literature on the topic 'Polypropylene nanocomposite'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Polypropylene nanocomposite.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Polypropylene nanocomposite"

1

Sahoo, Rajesh Kumar. "Preparation of Polypropylene/Silver Nanoparticles Nanocomposite Film and Evaluation of its Mechanical and Antimicrobial Properties w.r.t it’s Use in Packaging Applications." International Journal for Research in Applied Science and Engineering Technology 9, no. VII (July 31, 2021): 3830–38. http://dx.doi.org/10.22214/ijraset.2021.37207.

Full text
Abstract:
Polypropylene/silver nanoparticles nanocomposite films were prepared by melt compounding method by using polypropylene pallets and silver nanoparticles powder. The physical properties of the virgin polypropylene film and nanocomposite films were evaluated by mechanical testing. The effect of various silver nanoparticles content in the polymer nanocomposites with respect to its antimicrobial efficacy against the Gram positive bacteria Escherichia coli and Gram positive bacteria Staphylococcus aureus were studied. Nanocomposite film containing higher percentage of silver nanoparticles loading showed 99.9 % efficacy against the bacteria as compared to virgin polypropylene film.
APA, Harvard, Vancouver, ISO, and other styles
2

Mishra, Joy K., Il Kim, Chang-Sik Ha, Jin-Ho Ryou, and Gue-Hyun Kim. "Structure-Property Relationship of a Thermoplastic Vulcanizate (Tpv)/Layered Silicate Nanocomposites Prepared Using Maleic Anhydride Modified Polypropylene as a Compatibilizer." Rubber Chemistry and Technology 78, no. 1 (March 1, 2005): 42–53. http://dx.doi.org/10.5254/1.3547872.

Full text
Abstract:
Abstract Thermoplastic vulcanizate(TPV)/organoclay nanocomposites have been successfully prepared by melt intercalation method. Maleic anhydride modified polypropylene has been used as a compatibilizer. The TPV/organoclay nanocomposites have been characterized by Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) and Transmission Electron Microscope (TEM). The nanocomposite as evidenced by X-ray diffraction is an intercalated one. The nanocomposites exhibited remarkable improvement in tensile and storage modulus over their pristine counterpart. The dynamic mechanical analysis reveals that the glass transition temperature of the polypropylene phase of the nanocomposite is increased (compared to its pristine counterpart), whereas the EPDM phase remains same. The nanocomposites showed improved solvent resistance over its pristine counterpart. The structure-property correlation of the nanocomposites is attempted.
APA, Harvard, Vancouver, ISO, and other styles
3

Sofiah, M. K. Anis, Hui Lin Ong, Hazizan Md Akil, and Zainal Arifin Mohd Ishak. "Effect of Polypropylene-Methyl Polyhedral Oligomeric Silsesquioxane Compatibilizer in Polypropylene/Silica Nanocomposites: Mechanical, Morphological and Thermal Studies." Materials Science Forum 803 (August 2014): 265–68. http://dx.doi.org/10.4028/www.scientific.net/msf.803.265.

Full text
Abstract:
The Effect of 1 wt% and 3 wt% of polypropylene-methyl polyhedral oligomeric silsesquioxane (PP-POSS) as compatibilizer on polypropylene/silica (PP/SiO2) nanocomposites, prepared in the thermo Haake internal mixer was studied. The 3 wt% of PP-Methyl POSS added into PP/SiO2 system showed highest value of tensile strength. Moreover, nanocomposites with 3 wt% of PP-POSS compatibilizer showed the highest thermal stability among the nanocomposite systems in this study.
APA, Harvard, Vancouver, ISO, and other styles
4

Ahmad Rasyid, Mohd Fadli, Md Akil Hazizan, and Jamaliah Mohd Sharif. "Influence of Organo-Clay on Mechanical and Thermal Properties of O-Muscovite/PP Layered Silicate Nanocomposite." Advanced Materials Research 364 (October 2011): 174–80. http://dx.doi.org/10.4028/www.scientific.net/amr.364.174.

Full text
Abstract:
O-Muscovite/PP Layered Silicate Nanocomposites were prepared via melt compounding using different filler content. Muscovite was organomodified with Cetyldimethylethylammonium bromide (CEDAB). The thermal and mechanical properties of nanocomposites, based on polypropylene (PP) filled by organo-clay (O-Muscovite), were studied in order to clarify the effect of O-Muscovite on the O-Muscovite/PP layered silicate nanocomposites by WAXD, TEM and DSC analyses. XRD indicated that O-Mica layers were intercalated and dispersed into polypropylene. Analysis of test data shows that, addition of organo-clay improved mechanical properties of O-Mica/PP nanocomposites. With the incorporation of 5 wt% O-Mica (optimal filler loading) into polypropylene Izod impact increased to 23%. The DSC analyses have shown that the influence of organo-clay on the thermal properties of material was significant in composites with O-Mica as fillers, compared to virgin PP. The enhancements of properties can be caused by the formation of intercalated and exfoliation nanocomposite structure at this clay content and stronger interaction of O-Mica with polymer matrix. At a higher filler loading, degradation in mechanical properties maybe attributes to the formation of agglomerated clay tactoids. O-Muscovite/PP Layered Silicate Nanocomposites were prepared via melt compounding using different filler content. Muscovite was organomodified with cetyltrimethylammoniumbromide (CTAB). The thermal and mechanical properties of nanocomposites, based on polypropylene (PP) filled by organo-clay (O-Muscovite), were studied in order to clarify the effect of O-Muscovite on the O-Muscovite/PP layered silicate nanocomposites by WAXD, TEM and DSC analyses. XRD indicated that O-Mica layers were intercalated and dispersed into polypropylene. It was found that the mechanical and thermal properties of organo-clay nanocomposite possess better properties as compared to the unmodified clay nanocomposites. The reason was partly due to the formation of intercalated and exfoliation nanocomposite structure at this clay content and stronger interaction of O-Mica with polymer matrix.
APA, Harvard, Vancouver, ISO, and other styles
5

Tekay, Emre, Nihan Nugay, Turgut Nugay, and Sinan Şen. "Tuning of nanotube/elastomer ratio for high damping/tough and creep resistant polypropylene/SEBS-g-MA/HNT blend nanocomposites." Journal of Composite Materials 53, no. 8 (August 16, 2018): 1005–22. http://dx.doi.org/10.1177/0021998318794267.

Full text
Abstract:
Polypropylene (PP)/maleic anhydride grafted polystyrene-b-poly (ethylene/butylene)-b-polystyrene (SEBS-g-MA)/organophilic halloysite nanotube clay ternary nanocomposites were produced by using HNT/SEBS-g-MA masterbatches at different nanotube loadings (1 wt%, 3 wt%, and 5 wt%). The masterbatches with different ratios of HNT/SEBS-g-MA (1/1, 1/2, and 1/3) were prepared via a revolution/rotation type mixing-assisted masterbatch process. All nanocomposites showed higher storage moduli and damping at low temperatures as compared to neat polypropylene. The nanocomposites having HNT/SEBS-g-MA ratio of 1/3 were found to act as effective dampers with their relatively higher damping values. In terms of short-term creep performance, 1 wt% and 3 wt% organophilic halloysite nanotube loaded systems with low amount of SEBS-g-MA (<9 wt%) enhanced dimensional stability of polypropylene with their lower creep strain and permanent deformation values. More specifically, among the nanocomposites, 3 wt% organophilic halloysite nanotube loaded nanocomposite with HNT/SEBS-g-MA ratio of 1/3 and co-continuous like morphology not only exhibited an effective damping over a wide range of temperature (from −70℃ to 50℃) but also showed relatively higher storage moduli at low temperature region together with lower permanent creep deformation as compared to neat polypropylene. As a result, the HNT/SEBS-g-MA masterbatch in 1/3 ratio was found to be the most suitable in polypropylene blend nanocomposites. It may be advantageous for polypropylene nanocomposite based applications where high damping/toughness at low temperature conditions and high dimensional stability under load are desired.
APA, Harvard, Vancouver, ISO, and other styles
6

Castillo, Luciana A., and Silvia E. Barbosa. "Comparative analysis of crystallization behavior induced by different mineral fillers in polypropylene nanocomposites." Nanomaterials and Nanotechnology 10 (January 1, 2020): 184798042092275. http://dx.doi.org/10.1177/1847980420922752.

Full text
Abstract:
A comparative analysis of crystallization behavior induced by several mineral fillers in polypropylene nanocomposites was performed. Morphological changes and thermal properties of nanocomposites were evaluated, considering the influence of shape, crystalline morphology, and concentration of mineral particles. For this study, hydrated magnesium silicates with different particle morphologies, such as platelets (talc) and fibers (sepiolite), were used for nanocomposites. In addition, to analyze the effect of mineral crystallinity on nanocomposites, talc and sepiolite from different origin and genesis were selected. Nanocomposites were compounded and injection molded, using different filler concentration (0, 1, and 3% w/w) for each mineral particle. To evaluate the particle influence on nanocomposite crystallinity, X-ray diffraction was used to determine crystalline phases and crystal orientation, meanwhile differential scanning calorimetry was performed to obtain thermal properties. Main results revealed that talc has a higher nucleating effect on polypropylene matrix than sepiolite fibers, regardless of their origin and genesis. Meanwhile, a transcrystalline layer that surrounds the fiber surface is observed for nanocomposite containing sepiolite. Moreover, Argentinean talc induces different crystalline phases in nanocomposite with respect to Australian one, which partly influences on mechanical properties.
APA, Harvard, Vancouver, ISO, and other styles
7

Yadav, Kuřitka, Vilčáková, Machovský, Škoda, Urbánek, Masař, et al. "Polypropylene Nanocomposite Filled with Spinel Ferrite NiFe2O4 Nanoparticles and In-Situ Thermally-Reduced Graphene Oxide for Electromagnetic Interference Shielding Application." Nanomaterials 9, no. 4 (April 16, 2019): 621. http://dx.doi.org/10.3390/nano9040621.

Full text
Abstract:
Herein, we presented electromagnetic interference shielding characteristics of NiFe2O4 nanoparticles—in-situ thermally-reduced graphene oxide (RGO)—polypropylene nanocomposites with the variation of reduced graphene oxide content. The structural, morphological, magnetic, and electromagnetic parameters and mechanical characteristics of fabricated nanocomposites were investigated and studied in detail. The controllable composition of NiFe2O4-RGO-Polypropylene nanocomposites exhibited electromagnetic interference (EMI) shielding effectiveness (SE) with a value of 29.4 dB at a thickness of 2 mm. The enhanced EMI shielding properties of nanocomposites with the increase of RGO content could be assigned to enhanced attenuation ability, high conductivity, dipole and interfacial polarization, eddy current loss, and natural resonance. The fabricated lightweight NiFe2O4-RGO-Polypropylene nanocomposites have potential as a high performance electromagnetic interference shielding nanocomposite.
APA, Harvard, Vancouver, ISO, and other styles
8

Woo, Jae-Hun, and Soo-Young Park. "Polypropylene nanocomposite with polypropylene-grafted graphene." Macromolecular Research 24, no. 6 (May 25, 2016): 508–14. http://dx.doi.org/10.1007/s13233-016-4067-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Bagheri-Kazemabad, Sedigheh, Alireza Khavandi, Daniel Fox, Yan Hui Chen, Hong Zhou Zhang, and Bi Qiong Chen. "Effect of the Compatibilizer on Clay Dispersion in Polypropylene/Clay Nanocomposites." Advanced Materials Research 622-623 (December 2012): 847–50. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.847.

Full text
Abstract:
Polypropylene (PP)/clay nanocomposites were prepared via a melt mixing technique. Two types of compatibilizers, namely poly (ethyleneco-octene) (EOC-g-MA) and polypropylene grafted maleic anhydride (PP-g-MA), were selected to facilitate the nanocomposite formation. X-ray diffraction and transmission electron microscopy in conjunction with rheological analysis were used for studying the dispersion state of clay layers in these nanocomposites. The results showed with the introduction of EOC-g-MA to PP/clay, clay was dispersed better than the presence of PP-g-MA.
APA, Harvard, Vancouver, ISO, and other styles
10

Mirjalili, F., L. Chuah, and E. Salahi. "Mechanical and Morphological Properties of Polypropylene/Nanoα-Al2O3Composites." Scientific World Journal 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/718765.

Full text
Abstract:
A nanocomposite containing polypropylene (PP) and nanoα-Al2O3particles was prepared using a Haake internal mixer. Mechanical tests, such as tensile and flexural tests, showed that mechanical properties of the composite were enhanced by addition of nanoα-Al2O3particles and dispersant agent to the polymer. Tensile strength was approximately∼16% higher than pure PP by increasing the nanoα-Al2O3loading from 1 to 4 wt% into the PP matrix. The results of flexural analysis indicated that the maximum values of flexural strength and flexural modulus for nanocomposite without dispersant were 50.5 and 1954 MPa and for nanocomposite with dispersant were 55.88 MPa and 2818 MPa, respectively. However, higher concentration of nanoα-Al2O3loading resulted in reduction of those mechanical properties that could be due to agglomeration of nanoα-Al2O3particles. Transmission and scanning electron microscopic observations of the nanocomposites also showed that fracture surface became rougher by increasing the content of filler loading from 1 to 4% wt.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Polypropylene nanocomposite"

1

Yilmaz, Sule Seda. "Preparation And Characterization Of Organoclay-polypropylene Nanocomposites With Maleic Anhydride Grafted Polypropylene Compatibilizer." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613291/index.pdf.

Full text
Abstract:
The aim of this study was to improve the mechanical properties &ldquo
Moplen&rdquo
EP300L which is a heterophase copolymer. Polymer blends and nanocomposites were prepared by melt compounding method in a twin screw extruder. Nanofil®
5 (N5) and Nanofil®
8(N8) were used as the organoclays, and maleic anhydride grafted polypropylene (M) was used as the compatibilizer. The effects of additive concentrations and types of organoclays on the morphology, mechanical and thermal properties were investigated. Organoclay loading over 2 wt% prevented the intercalation mechanism resulting in large aggregates of clay, thus the material properties became poor even in the presence of compatibilizer. Compatibilizer addition improved the intercalation ability of the polymer, however a substantial increase in mechanical properties was not obtained up to 6 wt % loading of the compatibilizer. XRD analysis revealed that intercalated structures were formed with the addition of compatibilizer and organoclay. The nanocomposites that were prepared with N5 type organoclay showed delaminated structures at 6 wt % compatibilizer loading. v Nanofill ®
5 exhibited the highest improvements in mechanical properties, since the degree of organoclay dispersion was better in Nanofill ®
5 containing nanocomposites in comparison to Nanofill ®
8 containing ones. The DSC analysis indicated a insignificant reduction in the melting temperature of the ternary nanocomposites.
APA, Harvard, Vancouver, ISO, and other styles
2

Bondar, I. V., S. V. Kuzenko, D. H. Han, and H. K. Cho. "Synthesis of Polypropylene Fiber / Hydrated Iron Oxide Nanocomposite Adsorbent." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35589.

Full text
Abstract:
Composite adsorbent based on the polypropylene fibers with chemically bound nanoparticles of hydrated iron (III) oxide were synthesized by two-stage experiment: radiation-induced graft polymerization of acrylic acid onto the surface of polypropylene fibers followed by the in-situ formation of hydrated iron oxide nanoparticles and their stabilization on the fibers‟ surface within the grafted layer. SEM and XRD investigations revealed a compact homogeneous layer of amorphous nanoaggregates (70-100 nm) formed by iron hydroxide on the fibers‟ surface. The synthesized nanocomposite fibers were stable in the aggressive medium for a long time and exhibited good adsorption properties for uranyl ions. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35589
APA, Harvard, Vancouver, ISO, and other styles
3

Cengiz, Filiz. "Preparation And Characterization Of Recycled Polypropylene Based Nanocomposites." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609873/index.pdf.

Full text
Abstract:
The aim of this study was to improve the mechanical properties of a recycled grade polypropylene. Polymer blends and nanocomposites were prepared by melt compounding method in a twin screw extruder. Cloisite®
15A, Cloisite®
25A and Cloisite®
30B were used as organoclays, and ethylene-methyl acrylate-glycidyl methacrylate (E-MA-GMA) and maleic anhydride grafted polypropylene (PP-MAH) were used as compatibilizers. The effects of additive concentrations, types of organoclays and compatibilizers, processing conditions, and the compatibilizer to organoclay ratio on the morphology and mechanical, thermal and flow properties were investigated. Organoclay loading over 2 wt% prevented the intercalation mechanism and material properties, even in the presence of compatibilizer, as a consequence of large clay agglomerate formation. E-MA-GMA compatibilizer improved the intercalation ability of the polymer
however a substantial increase in mechanical properties was not obtained. PP-MAH is found to be a better compatibilizer. Processing conditions significantly affected both mechanical properties and morphology. When the processing temperature was decreased and screw speed was increased simultaneously, tensile and impact properties were improved owing to enhanced shear and dispersive forces. TEM analysis revealed that intercalated and delaminated structures were formed with the addition of PP-MAH compatibilizer. In addition to that, as the ratio of PP-MAH to organoclay was increased, more effective dispersion of organoclay was observed and hence resultant improvements in both tensile and impact properties were greater at compatibilizer to organoclay ratio of three. Cloisite®
15A exhibited the highest improvements in mechanical properties, although the degree of organoclay dispersion was better for Cloisite®
25A and particularly for Cloisite®
30B. Melt flow index values were lower compared to pure recycled polypropylene in the presence of organoclay and compatibilizers. DSC analysis indicated no significant change in the melting behavior of the matrix materials.
APA, Harvard, Vancouver, ISO, and other styles
4

Woods, Courtney G. "Role of nano-particles on crystalline orientation in polypropylene/clay nanocomposite films." Thesis, Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04072004-180242/unrestricted/woods%5Fcourtney%5Fg%5F200312%5Fms.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Baytekin, Sevil. "Synthesis And Characterization Of Polypyrrole Nanoparticles And Their Nanocomposites With Polypropylene." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610563/index.pdf.

Full text
Abstract:
Conducting polypyrrole (PPy) nanoparticles were synthesized via microemulsion polymerization system. The characterization of PPy nanoparticles was done by Fourier transform infrared spectrometer (FTIR) and scanning electron microscope (SEM). Nanocomposites were prepared by melt-mixing of polypyrrole with polypropylene (PP) and processed with injection molding. The amount of PPy in nanocomposites varied in the range of 1-20% by weight. The effect of PPy nanoparticles on mechanical, electrical properties and thermal stability of nanocomposites were investigated. Tensile test has revealed that increasing amount of PPy increased the strength and the stiffness of the nanocomposite while limiting the elongation of PP. Thermal gravimetric analysis has showed that incorporation of PPy nanoparticles has improved the thermal stability of the nanocomposites. Four probe conductivity measurement has exhibited that increasing amount of PPy nanoparticles increases the conductivity of nonconductive PP up to 2,4.10-4 Scm-1. In order to improve the dispersion of PPy in PP, sodium dodecylsulphate was used as dispersant. The same techniques were used to characterize nanocomposites containing 2% by weight dispersant. Composites prepared with dispersant have exhibited improvement in some mechanical and thermal properties and involved smaller dimension PPy nanoparticles.
APA, Harvard, Vancouver, ISO, and other styles
6

Boruban, Cetin. "Synthesis And Characterization Of Polypyrrole/montmorillonite And Polypyrrole/polypropylene Composites." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/2/12608574/index.pdf.

Full text
Abstract:
In this study, organo-montmorillonite (OMMT) nanocomposites containing 1%, 5%, 10% and 15% OMMT were prepared by in situ intercalative oxidative polymerization of pyrrole in the presence of OMMT. Thermal and morphological properties of the Polypyrrole(PPy)/OMMT nanocomposites were investigated by Thermal Gravimetric Analysis (TGA), X-ray Diffraction Analysis (XRD) and Scanning Electron Microscope (SEM). Electrical conductivities of composites were measured by four probe technique. Formation of PPy and its incorporation in PPy/OMMT composites were confirmed by FTIR analysis. TGA results showed that PPy/OMMT composites have outstanding thermal stability compared to that of PPy. XRD analysis revealed intercalation of PPy in the OMMT lamelles. Scanning electron micrographs demonstrated that the morphology of the PPy/OMMT nanocomposites differ slightly from that of the clay, since the modification of PPy was not significant in flaky structure of OMMT nanoparticles. Conductivity values of PPy/OMMT composites were found in the order of 10-3S/cm. Since PPy has poor processibility, Polypropylene(PP)/PPy composites were prepared in the composition range of 2-20 % PPy. Mechanical properties were investigated by tensile tests. Electrical conductivities were measured by four probe technique. Morphological characterizations were made by SEM. Young&
#8217
s Modulus of PPy/PP composites increased with increasing PPy content, and addition of 2 wt % PPy to PP resulted in a dramatic decrease in the tensile strain at break of the material. Also by addition of 2 wt % PPy to PP, the tensile strength of material decreased and further increase in PPy content, tensile strength increased. Furthermore, an increase in the PPy content in PPy/PP composites resulted in an increase in conductivity. SEM micrographs revealed that as the PPy loading increases from 10% to 20% in composite system, adhered PPy particles by PP matrix were driven out of PP matrix while PP matrix oriented along the draw direction during tensile test.
APA, Harvard, Vancouver, ISO, and other styles
7

Bondar, I. V., D. H. Han, and H. K. Cho. "Synthesis of Nanocomposite Adsorbent on the Base of Polypropylene Fabric with Copper Ferrocyanide Grains." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35459.

Full text
Abstract:
Composite adsorbents based on polypropylene fibers with chemically bound nanopartices of copper fer-rocyanide were synthesized by two-stage experiment: radiation-induced graft polymerization of acrylic acid onto non-woven polypropylene fabric followed by in-situ formation of copper ferrocyanize nanoparticles and their stabilization on the fabric surface within the grafted layer. Scanning electron microscope investiga-tions revealed a homogeneous compact layer of copper ferrocynide nanosized aggregates (65-70 nm). The synthesized composite material was stable in the base solutions (pH 10.5) and exhibited high efficiency for cesium adsorption. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35459
APA, Harvard, Vancouver, ISO, and other styles
8

Ezat, Gulstan S. "The influence of multi-walled carbon nanotubes on the properties of polypropylene nanocomposite : the enhancement of dispersion and alignment of multiwalled carbon nanotube in polypropylene nanocomposite and its effect on the mechanical, thermal, rheological and electrical properties." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5703.

Full text
Abstract:
Carbon nanotubes are known as ideal fillers for polymer systems; the main advantage of carbon nanotubes over other nano-reinforcing particles is the combination of superior strength and stiffness with large aspect ratio. Carbon nanotubes may improve the mechanical, electrical and thermal properties of polymers, but to realise their potential in polymer systems uniform dispersion, strong interfacial adhesion and alignment of nanotubes within the polymer matrix are necessary. These properties are not easy to achieve and they are key challenges in producing CNT/Polymer system. This research was carried out in an attempt to understand how the properties of CNT/Polymer composite can be optimised by manipulation of additives, compounding and postcompounding conditions. Polypropylene/Multi-Walled Carbon Nanotube (PP/MCNT) composites were prepared by conventional twin screw extrusion. Dispersants and compatibilisers were used to establish good interaction between filler and polymer. Several different extruder screw configurations were designed and the properties of PP/MCNT composite prepared by each configuration investigated. The results indicated that the addition of carbon nanotubes without additives enhanced mechanical, electrical and thermal properties of polypropylene polymer. Incorporation of compatibilisers into PP/MCNT improved the stiffness but decreased the strength of the nanocomposite, whilst addition of dispersants decreased the mechanical properties of the nanocomposite. Addition of both additives at high concentration improved electrical conductivity and induced electrical percolation in the nanocomposite. Extruder screw configuration was found to have significant effect on the electrical conductivity whilst only slightly affecting mechanical properties of the nanocomposite, possibly due to the competition between dispersion and degradation of polymer chains and possible reduction of carbon nanotube length by intensive shear during compounding. The use of screw configuration with high mixing intensity promoted the dispersion of nanotubes and favoured the conduction process in the nanocomposite. Finally in an attempt to improve dispersion and alignment of carbon nanotubes, compounded PP/MCNT composite was subjected to micromoulding, fibre spinning and biaxial stretching processes and the resultant properties investigated. Application of post-compounding process was found to have significant effect on mechanical and rheological properties of the nanocomposite. Stiffness and strength of the nanocomposites treated by post-compounding processes were found to increase by up to 160% and 300%, respectively. The reinforcement effect of carbon nanotubes in the stretched nanocomposites was found to be the greatest. Rheological analysis suggested that the application of post-compounding processes enhanced dispersion of carbon nanotubes within the nanocomposite. Overall, this finding of this research has shown that carbon nanotubes can be incorporated into polypropylene using conventional equipment to provide significant improvement in properties. By careful choices of additives, compounding and postcompounding conditions, specific properties can be further enhanced.
APA, Harvard, Vancouver, ISO, and other styles
9

Dulgerbaki, Cigdem. "Synthesis And Characterization Of Polythiophene/montmorillonite And Polythiophene/polypropylene Composites." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/2/12607762/index.pdf.

Full text
Abstract:
In this study, polythiophene(PTP)/montmorillonite(MMT) nanocomposites were synthesized by in situ intercalative polymerization and chemical oxidative polymerization. In in situ intercalative polymerization method, composites containing 90 and 95% MMT were prepared. In chemical oxidative polymerization method, a series of composites ranging from 1 to 15% by weight MMT were synthesized. Thermal and morphological properties of samples were investigated by Differential Scanning Calorimeter (DSC), Thermal Gravimetric Analysis (TGA), X-ray Diffraction (XRD) and Scanning Electron Microscope (SEM)
electrical conductivities were measured by four probe technique. Since PTP/MMT composites are unprocessable PTP/polypropylene(PP) composites were prepared. Amounts of PTP were changed in the range 2-30 % by weight in the composites. Mechanical properties were investigated by tensile tests. Four probe technique was used for measurement of electrical conductivities. Morphological characterizations were made by SEM. Formation of PTP and its incorporation in PTP/MMT composite were confirmed by FTIR analysis. DSC results showed that PTP does not have any thermal transition in the range 25-300 0C. TGA results showed that PTP/MMT composites have outstanding stability compared to that of PTP. XRD analysis revealed the formation of nanocomposites resulting from intercalation of thiophene in MMT at high MMT contents. Composites were observed as globular particles and clusters in SEM studies. Conductivity values of PTP/MMT composites were in the order of 10-3 S/cm. It is observed that tensile modulus of PTP/PP composites increases by the addition of PTP, but percentage strain at break does not appreciably change. Increasing PTP content increased electrical conductivity.
APA, Harvard, Vancouver, ISO, and other styles
10

Oliveira, Junior Adair Rangel de. "Obtenção de nanocompositos poliprolipeno-argila compatibilizados com organossilano." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248736.

Full text
Abstract:
Orientadores: Maria do Carmo Gonçalves, Inez Valeria Pagotto Yoshida
Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica
Made available in DSpace on 2018-08-10T13:34:02Z (GMT). No. of bitstreams: 1 OliveiraJunior_AdairRangelde_D.pdf: 4693907 bytes, checksum: 00373c55664170beeb525a7a15fd26a8 (MD5) Previous issue date: 2006
Resumo: Este trabalho teve como foco principal a obtenção de argilas expandidas por meio da modificação de argila natural com organossilanos, e depois sua incorporação em uma resina de polipropileno em extrusora de rosca dupla para a obtenção de nanocompósitos. As argilas usadas neste estudo foram as argilas montmoriloníticas sódicas Polenita e GelMax, bem como a argila organofílica Viscogel. Os organossilanos empregados no tratamento químico das argilas naturais foram o aminopropiltrimetoxissilano, glicidoxipropiltrietoxissilano e o metacriloxipropiltrietoxissilano. A obtenção da argila expandida foi fortemente influenciada pelas condições reacionais, como tipo e concentração do silano, solvente e pH do meio. As análises de difração de raios X revelaram que os melhores resultados de expansão da argila foram alcançados ao usar o silano aminopropiltrimetoxissilano em meio aquoso na faixa de pH entre 8 e 10. Segundo os dados de análise térmica, esta argila apresentou uma estabilidada térmica bem superior às tradicionais argilas organofílicas. Antes da incorporação da argila à matriz de polipropileno, primeiramente fez-se um estudo de otimização das condições de mistura, usando-se para isto a argila organofílica Viscogel, de elevado espaçamento basal. Desenvolveu-se um perfil de rosca com alta taxa de cisalhamento, no qual foi obtido um nanocompósito com dispersão de tamanho das lamelas da argila entre 5 a 15 nm. Tal dispersão resultou em ganho nas propriedades mecânicas em torno de 30 % em relação ao polipropileno puro. Este perfil de rosca foi, portanto, utilizado para realizar o processamento do polipropileno com a nova argila expandida. A partir dos resultados de difração de raios X e de microscopia eletrônica de transmissão, concluiu-se que não foi possível delaminar totalmente esta argila no polímero, como observado para a argila organofílica. Porém, os resultados relativos às propriedades mecânicas dos materiais obtidos mostraram que a argila modificada com aminopropiltrimetoxis-silano apresentou propriedades semelhantes às da argila organofílica, indicando que apesar do menor grau de dispersão, estas propriedades foram favorecidas pela maior interação entre a argila modificada e a matriz polimérica
Abstract: The purpose of this work was to obtain expanded clay by modifying clay with organosilane, and its incorporation into polypropylene resin to prepare a polypro-pylene-clay nanocomposite. Natural sodium montmorillonite (GelMax, Polenita) as well as organophylic clay (Viscogel ED) were used for this purpose. Three types of silanes were used to modify the clay: Aminopropyltrimethoxysilane (APS), glyci-doxypropyltriethoxysilane (GPS) and methacryloxypropyltrimethoxysilane (MPS). The expanded clay was strongly affected by reaction conditions, such as silane type and concentration, solvent and pH. According to XRD analysis, the higher basal distance was achieved in aqueous dispersion (pH 8-10) using the APS as a modifier. Modified clay showed superior thermal stability in comparison to organo-phylic clay, using thermogravimetric analysis. Besides the clay modification pro-cess, the screw profile influence on nanocomposite properties was also evaluated. An organophylic clay (Viscogel) was used to optimize the extrusion conditions, in this study. The composite processing was carried out in a twin screw extruder with higher shear screw profile. In this way, an exfoliated nanocomposite was obtained, where the clay layer thickness was between 5 and 15 nm. The flexural modulus of such nanocomposite was 30% higher than virgin polypropylene. This higher shear screw profile was used to extrude the polypropylene/aminopropylsilane-modified clay. Based on the X-ray diffraction and transmission electron microscopy results, a satisfactory exfoliation degree for silane-modified clay was not achieved, as observed for organophylic clay. In spite of the low exfoliation level of silane-modi-fied clay, the mechanical properties of its composite were similar to the organo-phylic clay based nanocomposite. This fact was attributed to better adhesion between polypropylene-silane modified clay than the polypropylene-organophylic clay system
Doutorado
Físico-Química
Doutor em Ciências
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Polypropylene nanocomposite"

1

Fatoni, Rois, Ali Almansoori, Ali Elkamel, and Leonardo Simon. "Computer-Aided Product Design of Wheat Straw Polypropylene Composites." In Modeling and Prediction of Polymer Nanocomposite Properties, 237–53. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527644346.ch11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Mittal, Vikas. "Modeling of Oxygen Permeation and Mechanical Properties of Polypropylene-Layered Silicate Nanocomposites Using DoE Designs." In Modeling and Prediction of Polymer Nanocomposite Properties, 129–42. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527644346.ch6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Soares, Carlos, Julyana Santana, Olgun Güven, and Esperidiana A. B. Moura. "A Comparison Between Graphene Oxide and Reduced Graphene Oxide as Reinforcement Agents in Polypropylene Nanocomposite Using Irradiated Polypropylene as Compatibilizer." In The Minerals, Metals & Materials Series, 385–94. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36628-5_36.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Berenguer, Isabelle Oliveira, Washington Luiz Oliani, Duclerc Fernandes Parra, Luiz Gustavo Hiroki Komatsu, Vinicius Juvino dos Santos, Nilton Lincopan, Ademar Benevolo Lugao, and Vijaya Kumar Rangari. "Fabrication of Gamma-Irradiated Polypropylene and AgNPs Nanocomposite Films and Their Antimicrobial Activity." In TMS 2016 145th Annual Meeting & Exhibition, 143–50. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48254-5_18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Berenguer, Isabelle Oliveira, Washington Luiz Oliani, Duclerc Fernandes Parra, Luiz Gustavo Hiroki Komatsu, Vinicius Juvino Dos Santos, Nilton Lincopan, Ademar Benevolo Lugao, and Vijaya Kumar Rangari. "Fabrication of Gamma-Irradiated Polypropylene and AgNPs Nanocomposite Films and Their Antimicrobial Activity." In TMS 2016: 145thAnnual Meeting & Exhibition: Supplemental Proceedings, 143–50. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119274896.ch18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Reddy, Kummetha Raghunatha. "Polypropylene Clay Nanocomposites." In Handbook of Polymernanocomposites. Processing, Performance and Application, 153–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38649-7_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Butylina, S., and I. Turku. "Biodegradation and Flame Retardancy of Polypropylene-Based Composites and Nanocomposites." In Polypropylene-Based Biocomposites and Bionanocomposites, 145–75. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119283621.ch6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Xu, Jia-Zhuang, Zhong-Ming Li*, and Benjamin S. Hsiao*. "Chapter 10. Crystallization Properties of Isotactic Polypropylene–Graphene Nanocomposites." In Polymer-Graphene Nanocomposites, 227–63. Cambridge: Royal Society of Chemistry, 2012. http://dx.doi.org/10.1039/9781849736794-00227.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Zhang, Jinguo, and Charles A. Wilkie. "Fire Retardancy of Polypropylene- Metal Hydroxide Nanocomposites." In ACS Symposium Series, 61–74. Washington, DC: American Chemical Society, 2005. http://dx.doi.org/10.1021/bk-2006-0922.ch006.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Rahman, Md Rezaur, Sinin Hamdan, and Muhammad Khusairy Bin Bakri. "Investigation on the Brittle and Ductile Behavior of Bamboo Nano Fiber Reinforced Polypropylene Nanocomposites." In Bamboo Polymer Nanocomposites, 83–105. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68090-9_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Polypropylene nanocomposite"

1

Huang, Han-Xiong, and Jian-Kang Wang. "Microcellular PP-CaCO3 Nanocomposites: Relationship Between Nanocomposite Morphology and Foam Morphology." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80846.

Full text
Abstract:
Polymeric nanocomposites exhibit high potential as a new material for carbon dioxide (CO2) foaming. In this paper, a polypropylene (PP)/nano-calcium carbonate (nano-CaCO3) composite was selected to investigate the relationship between nanocomposite morphology and foam morphology. Nanocomposites were prepared using a twin-screw extruder with screw including both shearing and mixing elements. Nanocomposites with different morphology via changing the nano-CaCO3 content were then foamed by using supercritical CO2 in a batch system. Effect of nano-CaCO3 content on the volume expansion ratio, and cell coalescence were studied.
APA, Harvard, Vancouver, ISO, and other styles
2

Hiziroglu, H. R., and I. E. Shkolnik. "Breakdown of synthetic-clay-filled nanocomposite polypropylene." In 2017 IEEE Conference on Electrical Insulation and Dielectric Phenomenon (CEIDP). IEEE, 2017. http://dx.doi.org/10.1109/ceidp.2017.8257584.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Jiang, Guo, and Hanxiong Huang. "Effect of Flow Field on Online Shear Viscosity of PP/nano-CaCO3 Composites." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15808.

Full text
Abstract:
Polymer nanocomposites have been regarded as a new category of engineering materials and attracted technical and scientific interest. Recently rheological analysis became an effective tool for investigating the microstructures of nanocomposites. However, the online rheological property of nanocomposites during compounding was seldom studied. In this work, two types of screw configurations in twin-screw extruder were selected, one provides high shearing intensity and the other provides high shearing/mixing intensity. In addition, chaotic mixing was induced by installing a single screw extruder with a convective screw at the end of the twin-screw extruder to compound the nanocomposites. The online melt shear viscosity of nanocomposite was measured using Haake ProFlow online rheometer. Effects of high shearing, high shearing/mixing, and chaotic mixing on the online shear viscosity for polypropylene (PP)/nano-calcium carbonate (nano-CaCO3) composites were investigated. The study showed that the chaotic mixing facilitates the processing of the nanocomposite.
APA, Harvard, Vancouver, ISO, and other styles
4

Bandyopadhyay, Jayita, Raphaale Mekoa, Sifiso Skosana, and Suprakas Sinha Ray. "Thermal properties and nonisothermal crystallization behaviour of polypropylene nanocomposite." In FRACTURE AND DAMAGE MECHANICS: Theory, Simulation and Experiment. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0029040.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Bellisario, D., F. Quadrini, L. Santo, and G. M. Tedde. "Manufacturing of Antibacterial Additives by Nano-Coating Fragmentation." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6415.

Full text
Abstract:
This study demonstrates the potential of a novel technique called nano-coating fragmentation to produce silver nanocomposites with antibacterial properties. This process starts from the production of an antibacterial additive without the separate production of silver nanoparticles. The additive was produced by depositing a silver nanofilm on polypropylene (PP) pellets by a physical vapor deposition sputtering process. Different set of sputtering parameters were used and different percentage of Ag were deposited on pellets. Afterwards, PP coated pellets were inserted in an injection molding machine to produce, in a single step, the nanocomposite by using shear forces. In facts, nanoparticles originate by the fragmentation of nano-coatings. The homogenously distributed silver particles were observed by microscope onto the nanocomposite surfaces. Thermal and mechanical properties of the nanocomposites were measured as well. The presence of dispersed nanofiller was confirmed by DSC analysis of the molded samples.
APA, Harvard, Vancouver, ISO, and other styles
6

Ambid, M., D. Mary, G. Teyssedre, C. Laurent, and G. C. Montanari. "Investigation of electrical and luminescent properties of polypropylene-based nanocomposite materials." In Proceedings of 2005 International Symposium on Electrical Insulating Materials, 2005. (ISEIM 2005). IEEE, 2005. http://dx.doi.org/10.1109/iseim.2005.193384.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Uwa, Chukwunonso Aghaegbulam, Emmanuel Rotimi Sadiku, Tamba Jamiru, and Zhongjie Huan. "Effect of Cloisite® 20A Reinforced Polypropylene Nanocomposite for Thermal Insulation." In 2019 IEEE 10th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT). IEEE, 2019. http://dx.doi.org/10.1109/icmimt.2019.8712043.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Montanari, Gian Carlo, Paolo Seri, Mikko Karttunen, Mika Paajanen, Kari Lahti, and Ilkka Rytoluoto. "Nanocomposite polypropylene for DC cables and capacitors: A new European project." In 2017 International Symposium on Electrical Insulating Materials (ISEIM). IEEE, 2017. http://dx.doi.org/10.23919/iseim.2017.8088777.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Wong, Shing-Chung, Shiyue Qu, Hyukjae Lee, and Shankar Mall. "Instrumented Indentation on Intercalated Clay Reinforced Polypropylene Nanocomposites." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15904.

Full text
Abstract:
Instrumented indentation techniques were employed to investigate the local stiffness in comparison to the global stiffness in organomodified clay filled maleated polypropylene (MAPP). The morphology of composites was observed under transmission electron microscopy. Both highly intercalated and well exfoliated clay structures were observed in clay filled MAPP system. As a result, the region where indentation load was applied could be considered as the local composite system. Instrumented indentation was performed on three distinct positions: (a) clay intercalated and congregated region supported by MAPP matrix; (b) aggregate-MAPP boundary; and (c) the MAPP alone. The clay aggregated region generally showed higher stiffness as compared to the MAPP matrix. And, the relative increase in indentation stiffness is substantially higher than the relative increase in tensile and compressive stiffnesses. Good linear correlation obtained between the changes in global and local indentation stiffness suggests plausible future application of nanoindentation technique in predicting the mechanical properties of the composite bulk. Furthermore, the highly intercalated morphology clearly provides a local and highly confined nanocomposite system similar to natural materials with optimum stiffening potential.
APA, Harvard, Vancouver, ISO, and other styles
10

Huang, Han-Xiong, Guo Jiang, and Shan-Qiang Mao. "Effect of Flow Fields on Morphology of PP/Nano/CaCO3 Composite and Its Rheological Behavior." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80830.

Full text
Abstract:
Polypropylene (PP)/nano-calcium carbonate (nano-CaCO3) composite was prepared using a co-rotating, intermeshing twin-screw extruder. The effect of flow fields on the morphology of the nanocomposite was investigated. Transmission electron microscopy (TEM) was used for the determination of the morphology in the nanocomposite. The crystallization behavior of the nanocomposite was studied by using differential scanning calorimetry (DSC) and the melt shear viscosity was investigated by a melt flow index tester. The study showed that the flow field, through appropriately combining the type of the screw elements in this work, plays an important role in developing morphology of the nanocomposite. In addition, it was shown that the melt viscosity for the nanocomposite at the filler content less than 10 wt% is lower than that of neat PP.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Polypropylene nanocomposite' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography