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Thematische Bibliographien / Wettability of plastics / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Wettability of plastics“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 9. Februar 2022

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1

NAGAI, Yoshinae, und Takao YAKOU. „Wettability of wood and biodegradable plastics“. Proceedings of Conference of Kanto Branch 2004.10 (2004): 471–72. http://dx.doi.org/10.1299/jsmekanto.2004.10.471.

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2

Fujinami, Akinori, Daisuke Matsunaka und Yoji Shibutani. „Water wettability/non-wettability of polymer materials by molecular orbital studies“. Polymer 50, Nr. 2 (Januar 2009): 716–20. http://dx.doi.org/10.1016/j.polymer.2008.11.050.

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3

Hirai, Yuji, Hiroyuki Mayama, Riku Tamura, Yasutaka Matsuo, Takahiro Okamatsu, Toshihiko Arita und Masatsugu Shimomura. „Microstructured rubber and its wettability“. Polymer Journal 51, Nr. 8 (22.04.2019): 721–30. http://dx.doi.org/10.1038/s41428-019-0192-5.

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4

Allen, K. W. „Contact angle, wettability and adhesion“. International Journal of Adhesion and Adhesives 14, Nr. 1 (Januar 1994): 69. http://dx.doi.org/10.1016/0143-7496(94)90024-8.

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5

Pastore Carbone, Maria Giovanna, Daniele Tammaro, Anastasios C. Manikas, George Paterakis, Ernesto Di Maio und Costas Galiotis. „Wettability of graphene by molten polymers“. Polymer 180 (Oktober 2019): 121708. http://dx.doi.org/10.1016/j.polymer.2019.121708.

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6

Boruvka, Martin. „Anisotropic Wetting Behavior on Injection Molded Polypropylene Parts Inspired by Surface Structure of Moss“. Applied Mechanics and Materials 752-753 (April 2015): 168–71. http://dx.doi.org/10.4028/www.scientific.net/amm.752-753.168.

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During the last years the carmakers interest is focused on polymer manufacturers to develop breakthrough solutions addressing the key drivers of reducing weight and cost. The use of polypropylene (PP) and other thermoplastic olefins is growing because of their low cost and good properties. Unfortunately, some of the same properties that make these plastics attractive to designers, also make them difficult to bond with adhesives or varnish. Non-polar character of PP results in poor surface properties and low wettability. Several methods of surface pretreatments have been used to improve its wettability, but all involves cost extending additional processing. Based on lessons from nature, one of the ways how to increase wettability is surface structuring. Injection mold insert designing and manufacturing process inspired by hydrophilic structure of the moss is presented. Due to cost reducing demands were used conventional processing methods.

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7

Mohammed-Ziegler, Ildikó, Zoltán Hórvölgyi, András Tóth, Willis Forsling und Allan Holmgren. „Wettability and spectroscopic characterization of silylated wood samples“. Polymers for Advanced Technologies 17, Nr. 11-12 (2006): 932–39. http://dx.doi.org/10.1002/pat.778.

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8

Gomes, Cristina M., M. Helena Ad�o, Benilde J. V. Saramago und Anabela C. Fernandes. „Wettability of cellular polyurethane“. Journal of Polymer Science Part B: Polymer Physics 35, Nr. 3 (Februar 1997): 407–14. http://dx.doi.org/10.1002/(sici)1099-0488(199702)35:3<407::aid-polb1>3.0.co;2-p.

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9

Lee, Min-Jae, Seon-Young Park und A.-Young Sung. „Characterization of Biocompatible Hydrogel Lenses Using Methacrylic Acid with Neodymium Oxide Nanoparticles“. Polymers 13, Nr. 10 (14.05.2021): 1575. http://dx.doi.org/10.3390/polym13101575.

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We prepared hydrogel contact lenses containing nanoparticles of neodymium oxide and methacrylic acid (MA) to investigate their effect on the physical and chemical properties of the lens. Neodymium oxide nanoparticles improved the tensile strength without affecting wettability. The tensile strength, wettability, and light transmittance were all increased when MA was added in a specific ratio. To confirm the safety of the newly used nanoparticles, test on absorbance, eluate, and pH change were conducted and it was found that the safety level was satisfactory. In conclusion, it was confirmed that durable contact lenses can be manufactured with neodymium oxide nanoparticles, and most of the basic elements of the lens such as transparency, strength, and wettability could be improved using MA, which is a hydrophilic material. It is believed that the study will be helpful as part of basic research to use new materials.

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10

Wagner, Natalie, und Patrick Theato. „Light-induced wettability changes on polymer surfaces“. Polymer 55, Nr. 16 (August 2014): 3436–53. http://dx.doi.org/10.1016/j.polymer.2014.05.033.

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11

Saı̈hi, Dhouha, Ahmida El-Achari, Abdellah Ghenaim und Claude Cazé. „Wettability of grafted poly(ethylene terephthalate) fibers“. Polymer Testing 21, Nr. 6 (2002): 615–18. http://dx.doi.org/10.1016/s0142-9418(01)00131-3.

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12

Wang, Zubin, Liping Heng und Lei Jiang. „Wettability with Aggregation-Induced Emission Luminogens“. Macromolecular Rapid Communications 38, Nr. 18 (17.03.2017): 1700041. http://dx.doi.org/10.1002/marc.201700041.

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13

Kanuchova, Maria, Ľubica Kozáková und Ivan Brezani. „Surface Analysis of Plastic Materials PET by XPS Method“. Solid State Phenomena 244 (Oktober 2015): 65–70. http://dx.doi.org/10.4028/www.scientific.net/ssp.244.65.

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The motivation for this study was the increasing need of recycling waste plastics in the cleanest - separated form. Relatively inexpensive methods of physicochemical separation of plastics is based on the different wettability of their surfaces. Because most used polymers are relatively highly hydrophobic, which would lead to their collective flotation in water, the study was aimed for the selective suppression of the hydrophobic character - hydrophilization of one of the most common plastics, which is PET. XPS method gave interesting information about the actual mechanism of the chemical reactions at the PET surface, which was changed by the alkaline hydrolysis.

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14

Mendez-Rossal, Hector R., und Gernot M. Wallner. „Printability and Properties of Conductive Inks on Primer-Coated Surfaces“. International Journal of Polymer Science 2019 (07.03.2019): 1–8. http://dx.doi.org/10.1155/2019/3874181.

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Conductive inks’ performance is affected by the printing conditions and the substrate’s properties. In this study, one graphite-, one polymer-, and two silver-based conductive inks were printed on four primer-coated metal substrates by screen printing. The compatibility and wettability between the inks and the primers were evaluated by infrared spectroscopy and surface energy measurements. The printed structures were characterized by laser confocal microscopy, peel-off tape testing, and four-point probe electrical resistivity testing. In general, silver inks exhibited the best performance in terms of printability and electrical conductivity. The graphite ink presented the worst printing, adhesion, and functional properties. The polymer-based ink revealed poor wettability but good adhesion and functionality. The surface roughness, energy, and polarity of the primer coating had no significant influence on the electrical conductivity of the printed inks.

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15

Brozova, Tereza, und Miroslav Raudensky. „Determination of surface wettability of polymeric hollow fibres“. Journal of Elastomers & Plastics 50, Nr. 8 (21.03.2018): 737–46. http://dx.doi.org/10.1177/0095244318765041.

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Surface wettability significantly affects the condensation and therefore the heat transfer when condensation occurs. The materials are classified as either hydrophobic or hydrophilic. Materials with a lower contact angle are more suitable for heat transfer applications associated with condensation. The dynamic contact angle is one way to define surface wettability. In this contribution, the Wilhelmy method was used for measuring the force of the interaction of a fibre at the liquid–gas interface. The method is based on immersing a sample in a liquid and then removing it. This study compares the influence of the type of polymeric material and surface finishes of hollow fibres on the dynamic contact angle. Polypropylene fibres and polypropylene fibres with a Trapylen®, (TRAMACO GmbH, Germany) surface finish achieve a larger dynamic contact angle (the advancing dynamic contact angle measured in water is around 100°). Therefore, they seem to be a better alternative than polycarbonate, polyether ether ketone and polyamide (the advancing dynamic contact angle in water is around 80°).

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16

Bamane, Swapnil S., Prashik S. Gaikwad, Matthew S. Radue, S. Gowtham und Gregory M. Odegard. „Wetting Simulations of High-Performance Polymer Resins on Carbon Surfaces as a Function of Temperature Using Molecular Dynamics“. Polymers 13, Nr. 13 (30.06.2021): 2162. http://dx.doi.org/10.3390/polym13132162.

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Resin/reinforcement wetting is a key parameter in the manufacturing of carbon nanotube (CNT)-based composite materials. Determining the contact angle between combinations of liquid resin and reinforcement surfaces is a common method for quantifying wettability. As experimental measurement of contact angle can be difficult when screening multiple high-performance resins with CNT materials such as CNT bundles or yarns, computational approaches are necessary to facilitate CNT composite material design. A molecular dynamics simulation method is developed to predict the contact angle of high-performance polymer resins on CNT surfaces dominated by aromatic carbon, aliphatic carbon, or a mixture thereof (amorphous carbon). Several resin systems are simulated and compared. The results indicate that the monomer chain length, chemical groups on the monomer, and simulation temperature have a significant impact on the predicted contact angle values on the CNT surface. Difunctional epoxy and cyanate ester resins show the overall highest levels of wettability, regardless of the aromatic/aliphatic nature of the CNT material surface. Tetrafunctional epoxy demonstrates excellent wettability on aliphatic-dominated surfaces at elevated temperatures. Bismaleimide and benzoxazine resins show intermediate levels of wetting, while typical molecular weights of polyether ether ketone demonstrate poor wetting on the CNT surfaces.

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17

CHENG, Rong, Shichun JANG und Lijia AN. „WETTABILITY OF EPOXY RESIN ON CARBON FIBER“. Acta Polymerica Sinica 009, Nr. 4 (03.07.2009): 352–57. http://dx.doi.org/10.3724/sp.j.1105.2009.00352.

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18

Tang, Wencheng, Liujun Pei, Hongjuan Zhang, Lei Zhu und Jiping Wang. „Effect of Pretreatments on Wettability and Dyeing Property of Cotton Fibers in an Environmentally Friendly Dyeing System“. AATCC Journal of Research 8, Nr. 5 (01.09.2021): 1–10. http://dx.doi.org/10.14504/ajr.8.5.1.

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To investigate the influence of cotton wettability on its dyeing properties in a silicone non-aqueous dyeing system, alkali pretreatment was performed before dyeing. The dyeing properties and dyeing kinetics of reactive dyes in the non-aqueous system and a conventional dyeing system were compared. Alkali pretreatment significantly improved the wettability of cotton fiber by removing wax and pectin. The adsorption rate of dye increased with increased cotton fiber wettability using the non-aqueous system, while it barely changed using the conventional system. Pseudo-second-order kinetics fit well with dye adsorption for both systems. Dye fixation improved by 30% at a concentration of 2% owf, along with better levelness and color depth of the dyed cotton fiber, using the silicone non-aqueous system without salts and dispersants.

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19

Rosilio, Véronique, Maria de Lourdes Costa und Adam Baszkin. „WETTABILITY OF DRUG LOADED POLYMER MATRICES“. Journal of Dispersion Science and Technology 19, Nr. 6-7 (Januar 1998): 821–41. http://dx.doi.org/10.1080/01932699808913217.

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20

Bargozin, H., und J. S. Moghaddas. „Wettability Alteration with Silica Aerogel Nanodispersion“. Journal of Dispersion Science and Technology 34, Nr. 8 (03.08.2013): 1130–38. http://dx.doi.org/10.1080/01932691.2012.695944.

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21

Hayashida, Shoichi, Hirotsugu Sato und Shungo Sugawara. „Photo-Induced Wettability Change in Films Containing Spiropyran Microcrystals“. Polymer Journal 18, Nr. 3 (März 1986): 227–35. http://dx.doi.org/10.1295/polymj.18.227.

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22

Hemmatian, Tahmineh, Halim Lee und Jooyoun Kim. „Bacteria Adhesion of Textiles Influenced by Wettability and Pore Characteristics of Fibrous Substrates“. Polymers 13, Nr. 2 (11.01.2021): 223. http://dx.doi.org/10.3390/polym13020223.

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Bacteria adhesion on the surface is an initial step to create biofouling, which may lead to a severe infection of living organisms and humans. This study is concerned with investigating the textile properties including wettability, porosity, total pore volume, and pore size in association with bacteria adhesion. As model bacteria, Gram-negative, rod-shaped Escherichia coli and the Gram-positive, spherical-shaped Staphylococcus aureus were used to analyze the adhesion tendency. Electrospun webs made from polystyrene and poly(lactic acid) were used as substrates, with modification of wettability by the plasma process using either O2 or C4F8 gas. The pore and morphological characteristics of fibrous webs were analyzed by the capillary flow porometer and scanning electron microscopy. The substrate’s wettability appeared to be the primary factor influencing the cell adhesion, where the hydrophilic surface resulted in considerably higher adhesion. The pore volume and the pore size, rather than the porosity itself, were other important factors affecting the bacteria adherence and retention. In addition, the compact spatial distribution of fibers limited the cell intrusion into the pores, reducing the total amount of adherence. Thus, superhydrophobic textiles with the reduced total pore volume and smaller pore size would circumvent the adhesion. The findings of this study provide informative discussion on the characteristics of fibrous webs affecting the bacteria adhesion, which can be used as a fundamental design guide of anti-biofouling textiles.

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23

Turri, Stefano, und Marinella Levi. „Wettability of Polyhedral Oligomeric Silsesquioxane Nanostructured Polymer Surfaces“. Macromolecular Rapid Communications 26, Nr. 15 (05.08.2005): 1233–36. http://dx.doi.org/10.1002/marc.200500274.

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24

Rossegger, E., D. Hennen, T. Griesser, I. Roppolo und S. Schlögl. „Directed motion of water droplets on multi-gradient photopolymer surfaces“. Polymer Chemistry 10, Nr. 15 (2019): 1882–93. http://dx.doi.org/10.1039/c9py00123a.

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25

Akindoyo, John O., Mohammad Dalour Hossen Beg, Suriati Ghazali und Muhammad Remanul Islam. „The effects of wettability, shear strength, and Weibull characteristics of fiber-reinforced poly(lactic acid) composites“. Journal of Polymer Engineering 36, Nr. 5 (01.07.2016): 489–97. http://dx.doi.org/10.1515/polyeng-2015-0215.

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Abstract The wettability, interfacial shear strength (IFSS), and Weibull characteristics of oil palm empty fruit bunch (EFB) fibers were studied to evaluate the mechanical properties of EFB- and poly(lactic acid) (PLA)-based composites. The fiber surface was modified through ultrasound and poly(dimethyl siloxane) treatment. The effects of treatment on the morphology, wettability, and structure of fibers were examined by scanning electron microscopy, contact angle, and Fourier transform infrared spectroscopy analysis, respectively. In addition, the Weibull characteristic was used to find the variability in strength of the fibers with respect to surface treatment. Furthermore, the IFSS of EFB fiber-PLA sandwich was investigated through single-fiber pull-out test, using a less strenuous technique. The mechanical properties (tensile strength, tensile modulus, flexural strength, and flexural modulus) of the composites were determined through mechanical testing. A comparison was drawn among the properties of PLA, raw EFB fiber-based composites, and treated EFB fiber-based composites. Additionally, the inter- and intra-relationship of fiber treatment, wettability, and IFSS with the mechanical properties of the PLA/EFB composites were also accounted.

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Gao, Hainan, Yudong Cai, Shuhong Li, Xiqi Zhang, Tianyi Zhao, Mingjie Liu und Lei Jiang. „Heteronetwork organohydrogels with exceptional swelling-resistance and adaptive antifouling performance“. Polymer Chemistry 11, Nr. 1 (2020): 68–74. http://dx.doi.org/10.1039/c9py01429b.

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27

Rossegger, E., D. Nees, S. Turisser, S. Radl, T. Griesser und S. Schlögl. „Photo-switching of surface wettability on micropatterned photopolymers for fast transport of water droplets over a long-distance“. Polymer Chemistry 11, Nr. 18 (2020): 3125–35. http://dx.doi.org/10.1039/d0py00263a.

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28

Yatagai, Mamiko. „Correlation Between Wettability and Water Absorbency of Soiled Fabrics“. Textile Research Journal 64, Nr. 8 (August 1994): 461–65. http://dx.doi.org/10.1177/004051759406400806.

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29

Baniya, Hom Bahadur, Rajesh Prakash Guragain, Binod Baniya und Deepak Prasad Subedi. „Cold Atmospheric Pressure Plasma Jet for the Improvement of Wettability of Polypropylene“. International Journal of Polymer Science 2020 (20.06.2020): 1–9. http://dx.doi.org/10.1155/2020/3860259.

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This paper reports the generation of cold plasma jet working under atmospheric pressure condition, for surface treatment of polymeric films. The discharge has been characterized by electrical and optical methods. The electrical property of the discharge has been studied by taking current-voltage wave forms using voltage and current probes. The production of argon plasma jet is done in atmospheric conditions which are relatively much cheaper, convenient, and safer to use. The atmospheric pressure plasma jet sustained in pure argon has been used to improve wettability of polypropylene (PP). Cold atmospheric pressure plasma jet (CAPPJ) has been generated by a high-voltage power supply (5.5 kV, 0-20 kV) at an operating frequency of 20 kHz. The surface properties of the controls and plasma-treated PP samples were characterized by contact angle measurement, surface free energy measurement, scanning electron microscopy, and the Fourier transform-infrared spectroscopy analysis.

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30

Caschera, Daniela, Alessio Mezzi, Luciana Cerri, Tilde de Caro, Cristina Riccucci, Gabriel Maria Ingo, Giuseppina Padeletti, Mariano Biasiucci, Giuseppe Gigli und Barbara Cortese. „Effects of plasma treatments for improving extreme wettability behavior of cotton fabrics“. Cellulose 21, Nr. 1 (26.11.2013): 741–56. http://dx.doi.org/10.1007/s10570-013-0123-0.

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31

Farcasiu, Titus Alexandru, Daniela Ioana Tarlungeanu, Gabriela Ciavoi, Liana Todor, Magdalena Natalia Dina, Oana Cella Andrei und Catalina Farcasiu. „Injection-type Denture Base Materials Surface Modification after Vapor Plasma Deposition“. Materiale Plastice 58, Nr. 2 (05.07.2021): 1–7. http://dx.doi.org/10.37358/mp.21.2.5472.

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The purpose of this study was to investigate changes of superficial topography and wettability of two injection-type denture base materials following low pressure plasma treatment. Samples of denture base materials (Polyan and Biodentaplast) were fabricate using dedicated technology and were exposed to plasma treatment. Resin surface topography and rugosity were evaluated using SEM and AFM, while wettability was determined through contact angle measurements. Artificial saliva was the testing liquid. Initial contact angles for the two materials are close (Biodentaplast-37.60�, Polyan-36.75�). Plasma treatment halves the values of the contact angle. 30-days measurement reveals a reduced bounce-back effect (Biodentaplast-20.68�, Polyan-20.11�). Surface topography modified differently for the two materials. Rugosity increased significantly for both materials (p[0.05). Surface rugosity values pre- and post-plasma treatment respect the biological threshold of fungal adhesion. Plasma exposure increased injection-type denture base materials wettability with artificial saliva and surface roughness. Injection-type denture base materials and artificial saliva can enhance prosthetic experience of xerostomic patients.

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32

Sultana, Sabiha, Jun Matsui, Masaya Mitsuishi und Tokuji Miyashita. „Thickness Dependence of Surface Wettability Change by Photoreactive Polymer Nanosheets“. Polymer Journal 40, Nr. 10 (06.08.2008): 953–57. http://dx.doi.org/10.1295/polymj.pj2008088.

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33

Varin, Jean-Christophe, Guy Levesque und Evelyne Nakache. „Characterization of wettability properties of polyester films and nuclear membranes“. Polymer 34, Nr. 17 (September 1993): 3727–31. http://dx.doi.org/10.1016/0032-3861(93)90061-e.

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34

Dawaymeh, Fadi, Yawar Abbas, Maryam Khaleel, Anas Alazzam und Nahla Alamoodi. „Tuning the Surface Wettability of Cyclic Olefin Copolymer by Plasma Treatment and Graphene Oxide Deposition and Reduction“. Polymers 13, Nr. 14 (14.07.2021): 2305. http://dx.doi.org/10.3390/polym13142305.

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Selective altering of surface wettability in microfluidic channels provides a suitable platform for a large range of processes, such as the phase separation of multiphase systems, synthesis of reaction controlled, nanoliter sized droplet reactors, and catalyst impregnation. Herein we study the feasibility to tune the wettability of a flexible cyclic olefin copolymer (COC). Two methods were considered for enhancing the surface hydrophilicity. The first is argon/oxygen plasma treatment, where the effect of treatment duration on water contact angle and COC surface morphology and chemistry were investigated, and the second is coating COC with GO dispersions of different concentrations. For enhancing the hydrophobicity of GO-coated COC surfaces, three reduction methods were considered: chemical reduction by Hydroiodic acid (HI), thermal reduction, and photo reduction by exposure of GO-coated COC to UV light. The results show that as the GO concentration and plasma treatment duration increased, a significant decrease in contact angle was observed, which confirmed the ability to enhance the wettability of the COC surface. The increase in hydrophilicity during plasma treatment was associated with the increase in surface roughness on the treated surfaces, while the increase during GO coating was associated with introducing oxygen-containing groups on the GO-coated COC surfaces. The results also show that the different reduction methods considered can increase the contact angle and improve the hydrophobicity of a GO-coated COC surface. It was found that the significant improvement in hydrophobicity was related to the reduction of oxygen-containing groups on the GO-coated COC modified surface.

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Thaburet, Jean-François, Hitoshi Mizomoto und Mark Bradley. „High-Throughput Evaluation of the Wettability of Polymer Libraries“. Macromolecular Rapid Communications 25, Nr. 1 (Januar 2004): 366–70. http://dx.doi.org/10.1002/marc.200300234.

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36

Xiao, Yaqian, Yanjuan Cao, Yan Liu, Binjie Xin, Lantian Lin, Yanggang Sun und Zhuoming Chen. „Electrospun natural cellulose/polyacrylonitrile nanofiber: simulation and experimental study“. Textile Research Journal 89, Nr. 9 (28.05.2018): 1748–58. http://dx.doi.org/10.1177/0040517518779256.

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In this paper, we report on the fabrication and characterization of cellulose/polyacrylonitrile (cellulose/PAN) nanofiber via the electrospinning technique. The effects of voltage and blending ratio on the morphology of the electrospun cellulose/PAN nanofibers are investigated. The electric field distribution of the nanofiber manufacturing system is simulated by using finite element method analysis. The results show that the morphology and diameters of the nanofiber are obviously affected with the change of the electric field and blending ratio. The surface morphology, chemical structural, thermal stability, mechanical property and wettability of the cellulose/PAN nanofibers with different blending ratios are evaluated systematically. The thermal stability and mechanical property of the cellulose/PAN nanofibers have a certain improvement compared with pure cellulose nanofiber. The wettability of cellulose/PAN nanofibers is better than that of ordinary medical gauze.

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37

Langston, T. A. „Wettability of Nitric Acid Oxidized Carbon Fibers“. Journal of Reinforced Plastics and Composites 29, Nr. 14 (14.10.2009): 2156–69. http://dx.doi.org/10.1177/0731684409341756.

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38

Hasan, M. M. B., A. Calvimontes, A. Synytska und V. Dutschk. „Effects of Topographic Structure on Wettability of Differently Woven Fabrics“. Textile Research Journal 78, Nr. 11 (November 2008): 996–1003. http://dx.doi.org/10.1177/0040517507087851.

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39

Siqiang Zhu und Douglas E. Hirt. „Improving the Wettability of Deep-Groove Polypropylene Fibers by Photografting“. Textile Research Journal 79, Nr. 6 (April 2009): 534–47. http://dx.doi.org/10.1177/0040517508092017.

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40

Wang, Jin, Ye Zhou, Jingpeng Li, Yongshun Feng, Jian Zhang, Haixia Yu und Xiaowei Zhuang. „Improved Wettability and Dimensional Stability of Bamboo Timber by Coating Graphene/Silica Composites“. International Journal of Polymer Science 2021 (16.08.2021): 1–10. http://dx.doi.org/10.1155/2021/7053143.

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Bamboo timber (BT) is a kind of natural porous material, and usually bamboo cracking and deformation are caused by the change of humidity in the environment. Inspired by the natural structure of the shell, a multilayer structure was designed to fabricate a kind of graphene/silica composite coating on the BT surface. The multilayer bamboo composite (FAS-RGO@SiO2BT) was prepared by using the self-assembly process of nanospherical silica on graphene followed by hydrophobic modification. A possible formation mechanism of FAS-RGO@SiO2BT was discussed by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray analysis, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. The FAS-RGO@SiO2BT has excellent hydrophobic properties for tea, orange juice, milk, coffee, blue ink, red wine, and green juice. Also, the FAS-RGO@ SiO2BT has an obvious hydrophobic effect on any of the various solutions with a pH of 1 to 14. In addition, after a 90-day immersion test, the water absorption rate of FAS-RGO@ SiO2BT is 9.7% and the thickness swelling rate is 0.5%. The wettability and dimensional stability of the FAS-RGO@SiO2BT are significantly improved compared to those of BT.

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Gao, Yu, Huie Zhu, Shunsuke Yamamoto, Tokuji Miyashita und Masaya Mitsuishi. „Surface wettability of amphiphilic fluorinated polymer thin films“. Polymer Bulletin 73, Nr. 9 (28.04.2016): 2409–15. http://dx.doi.org/10.1007/s00289-016-1668-5.

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Wanke, Cesar Henrique, João Luiz Feijó, Luiz Gustavo Barbosa, Leandra Franciscato Campo, Ricardo Vinicius Bof de Oliveira und Flavio Horowitz. „Tuning of polypropylene wettability by plasma and polyhedral oligomeric silsesquioxane modifications“. Polymer 52, Nr. 8 (April 2011): 1797–802. http://dx.doi.org/10.1016/j.polymer.2011.01.064.

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Ferrero, F. „Wettability measurements on plasma treated synthetic fabrics by capillary rise method“. Polymer Testing 22, Nr. 5 (August 2003): 571–78. http://dx.doi.org/10.1016/s0142-9418(02)00153-8.

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Silverstein, M. S., und O. Breuer. „Wettability and flotation of etched ultra high molecular weight polyethylene fibres“. Polymer 34, Nr. 16 (Januar 1993): 3421–27. http://dx.doi.org/10.1016/0032-3861(93)90471-l.

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45

Koffi, Agbelenko, Fayçal Mijiyawa, Demagna Koffi, Fouad Erchiqui und Lotfi Toubal. „Mechanical Properties, Wettability and Thermal Degradation of HDPE/Birch Fiber Composite“. Polymers 13, Nr. 9 (30.04.2021): 1459. http://dx.doi.org/10.3390/polym13091459.

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Wood–plastic composites have emerged and represent an alternative to conventional composites reinforced with synthetic carbon fiber or glass fiber–polymer. A wide variety of wood fibers are used in WPCs including birch fiber. Birch is a common hardwood tree that grows in cool areas such as the province of Quebec, Canada. The effect of the filler proportion on the mechanical properties, wettability, and thermal degradation of high-density polyethylene/birch fiber composite was studied. High-density polyethylene, birch fiber and maleic anhydride polyethylene as coupling agent were mixed and pressed to obtain test specimens. Tensile and flexural tests, scanning electron microscopy, dynamic mechanical analysis, differential scanning calorimetry, thermogravimetry analysis and surface energy measurement were carried out. The tensile elastic modulus increased by 210% as the fiber content reached 50% by weight while the flexural modulus increased by 236%. The water droplet contact angle always exceeded 90°, meaning that the material remained hydrophobic. The thermal decomposition mass loss increased proportional with the percentage of fiber, which degraded at a lower temperature than the HDPE did. Both the storage modulus and the loss modulus increased with the proportion of fiber. Based on differential scanning calorimetry, neither the fiber proportion nor the coupling agent proportion affected the material melting temperature.

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Jorda-Reolid, Maria, Jaume Gomez-Caturla, Juan Ivorra-Martinez, Pablo Marcelo Stefani, Sandra Rojas-Lema und Luis Quiles-Carrillo. „Upgrading Argan Shell Wastes in Wood Plastic Composites with Biobased Polyethylene Matrix and Different Compatibilizers“. Polymers 13, Nr. 6 (17.03.2021): 922. http://dx.doi.org/10.3390/polym13060922.

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The present study reports on the development of wood plastic composites (WPC) based on micronized argan shell (MAS) as a filler and high-density polyethylene obtained from sugarcane (Bio-HDPE), following the principles proposed by the circular economy in which the aim is to achieve zero waste by the introduction of residues of argan as a filler. The blends were prepared by extrusion and injection molding processes. In order to improve compatibility between the argan particles and the green polyolefin, different compatibilizers and additional filler were used, namely polyethylene grafted maleic anhydride (PE-g-MA 3 wt.-%), maleinized linseed oil (MLO 7.5 phr), halloysite nanotubes (HNTs 7.5 phr), and a combination of MLO and HNTs (3.75 phr each). The mechanical, morphological, thermal, thermomechanical, colorimetric, and wettability properties of each blend were analyzed. The results show that MAS acts as a reinforcing filler, increasing the stiffness of the Bio-HDPE, and that HNTs further increases this reinforcing effect. MLO and PE-g-MA, altogether with HNTs, improve the compatibility between MAS and Bio-HDPE, particularly due to bonds formed between oxygen-based groups present in each compound. Thermal stability was also improved provided by the addition of MAS and HNTs. All in all, reddish-like brown wood plastic composites with improved stiffness, good thermal stability, enhanced compatibility, and good wettability properties were obtained.

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Nogi, K., M. Nishikawa, H. Fujii und S. Hara. „Wettability of diamond by liquid pure tin“. Acta Materialia 46, Nr. 7 (April 1998): 2305–11. http://dx.doi.org/10.1016/s1359-6454(98)80011-6.

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48

Gazvoda, Lea, Bojana Višić, Matjaž Spreitzer und Marija Vukomanović. „Hydrophilicity Affecting the Enzyme-Driven Degradation of Piezoelectric Poly-l-lactic Films“. Polymers 13, Nr. 11 (24.05.2021): 1719. http://dx.doi.org/10.3390/polym13111719.

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Biocompatible and biodegradable poly-l-lactic acid (PLLA) processed into piezoelectric structures has good potential for use in medical applications, particularly for promoting cellular growth during electrostimulation. Significant advantages like closer contacts between cells and films are predicted when their surfaces are modified to make them more hydrophilic. However, there is an open question about whether the surface modification will affect the degradation process and how the films will be changed as a result. For the first time, we demonstrate that improving the polymer surface’s wettability affects the position of enzyme-driven degradation. Although it is generally considered that proteinase K degrades only the polymer surface, we observed the enzyme’s ability to induce both surface and bulk degradation. In hydrophilic films, degradation occurs at the surface, inducing surface erosion, while for hydrophobic films, it is located inside the films, inducing bulk erosion. Accordingly, changes in the structural, morphological, mechanical, thermal and wetting properties of the film resulting from degradation vary, depending on the film’s wettability. Most importantly, the degradation is gradual, so the mechanical and piezoelectric properties are retained during the degradation.

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Wei, Liying, Tugba D. Caliskan, Philip J. Brown und Igor Luzinov. „Towards a Long-Chain Perfluoroalkyl Replacement: Water and Oil Repellent Perfluoropolyether-Based Polyurethane Oligomers“. Polymers 13, Nr. 7 (02.04.2021): 1128. http://dx.doi.org/10.3390/polym13071128.

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Original perfluoropolyether (PFPE)-based oligomeric polyurethanes (FOPUs) with different macromolecular architecture were synthesized (in one step) as low-surface-energy materials. It is demonstrated that the oligomers, especially the ones terminated with CF3 moieties, can be employed as safer replacements to long-chain perfluoroalkyl substances/additives. The FOPU macromolecules, when added to an engineering thermoplastic (polyethylene terephthalate, PET) film, readily migrate to the film surface and bring significant water and oil repellency to the thermoplastic boundary. The best performing FOPU/PET films have reached the level of oil wettability and surface energy significantly lower than that of polytetrafluoroethylene, a fully perfluorinated polymer. Specifically, the highest level of the repellency is observed with an oligomeric additive, which was made using aromatic diisocyanate as a comonomer and has CF3 end-group. This semicrystalline oligomer has a glass transition temperature (Tg) well above room temperature, and we associate the superiority of the material in achieving low water and oil wettability with its ability to effectively retain CF3 and CF2 moieties in contact with the test wetting liquids.

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Yang, Yadie, und Hong Hu. „Spacer fabric-based exuding wound dressing – Part II: Comparison with commercial wound dressings“. Textile Research Journal 87, Nr. 12 (12.07.2016): 1481–93. http://dx.doi.org/10.1177/0040517516654110.

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In this study, a three-layered composite structure based on spacer fabric was designed for absorbent wound dressings. The fabrication and selection of spacer fabrics were discussed in Part I. In this part, two selected spacer fabrics were further modified by covering a polyurethane or a polystyrene electrospun nanofibrous membrane onto their outer layer surface to form the final spacer fabric-based dressing products. In order to confirm the performance of these new spacer fabric-based dressings, the comparisons were conducted with three types of commercial wound dressings. The comparison indicators included the water contact angle, wettability, absorbency, air permeability and water vapor transmission rate. The results showed that in addition to very good water vapor and air permeability, the developed spacer fabric-based dressings had better absorbing properties than commercial foam dressings. Furthermore, their wettability was also good for application as wound dressings. The study has paved a new way to produce advanced wound dressings using three-dimensional textile structures.

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