Relevant bibliographies by topics / Bio-composite films

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Bio-composite films'

Author: Grafiati
Published: 24 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Bio-composite films"

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Patrucco, A., A. Aluigi, C. Vineis, and C. Tonin. "Bio-Composite Keratin Films from Wool Fibrillation." Journal of Biobased Materials and Bioenergy 5, no. 1 (March 1, 2011): 124–31. http://dx.doi.org/10.1166/jbmb.2011.1118.

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Tharasawatpipat, Chaisri, Jittiporn Kruenate, Kowit Suwannahong, and Torpong Kreetachat. "Modification of Titanium Dioxide Embedded in the Bio-Composite Film for Photocatalytic Oxidation of Chlorinated Volatile Organic Compound." Advanced Materials Research 894 (February 2014): 37–42. http://dx.doi.org/10.4028/www.scientific.net/amr.894.37.

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This research aimed to apply the Blown Film Extrusion technique to synthesize the titanium dioxide (TiO2) bio-composite films incorporated on a thin film as a photocatalyst. The biopolymer materials have great recognition via their renewable and biodegradable characteristic and the green composite has been a new challenge path to replace traditional polymer composite. In this work, TiO2/Polybutylene succinate (PBS) bio-composite film was developed to be used as a supporter for determining the photocatalytic oxidation activity of the TiO2 on the chlorinated volatile organic compounds degradation. PBS is a synthetic biopolymer which has a reasonable mechanical strength. The modified-TiO2/PBS bio-composite films were studied to evaluate the degradation of dichloromethane. In order to improve the distribution of the developed photocatalyst, the TiO2 powders were modified by 0.05% mole of ethyl triethoxysilane (ETES) and stearic acid (SA), respectively. The 10% wt. TiO2/PBS bio-composite films with thickness of 30 μm were prepared by blown film technique. To evaluate the dispersion efficacy, the modified-TiO2/PBS bio-composite films were characterized by Scanning Electron microscopy (SEM). Photocatalytic degradation of dichloromethane in gas phase was determined using an annular closed system photoreactor. The obtained result which was corresponding to the absorption of TiO2/PBS bio composites film was investigated in a range of 300-400 nm via UV/VIS spectrophotometry. The energy band gap of TiO2, ethyl triethoxysilane-TiO2 and stearic acid-TiO2 bio-composite film was found to be 3.18, 3.21, and 3.26 eV, respectively. The SEM shows that the modified-TiO2 with both ETES and SA exhibit uniform dispersion, while the only TiO2 shows an evidence of agglomeration in the PBS matrix. For photocatalyst efficiency, the photocatalytic activity of modified-TiO2/PBS bio-composite film increased comparing to the TiO2/PBS bio-composite film. Moreover, the photocatalytic degradation of dichloromethane by ETES-TiO2/PBS bio-composite film yielded degradation efficiency of 47.0%, whereas SA-TiO2/PBS bio-composite film yielded the removal efficiency of 41.0% for detention time at 350 min.
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Nevo, Y., N. Peer, S. Yochelis, M. Igbaria, S. Meirovitch, O. Shoseyov, and Y. Paltiel. "Nano bio optically tunable composite nanocrystalline cellulose films." RSC Advances 5, no. 10 (2015): 7713–19. http://dx.doi.org/10.1039/c4ra11840e.

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Kusmono, Kusmono, Muhammad Waziz Wildan, and Fadhlan Ihsan Lubis. "Fabrication and Characterization of Chitosan/Cellulose Nanocrystal/Glycerol Bio-Composite Films." Polymers 13, no. 7 (March 30, 2021): 1096. http://dx.doi.org/10.3390/polym13071096.

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Cellulose nanocrystal (CNC)-reinforced bio-composite films containing glycerol were produced using the solution casting technique. The influences of the addition of CNC (2, 4, and 8 wt%) and glycerol (10, 20, and 30 wt%) on the properties of the bio-composite films were studied in the present work. The resulting films were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, and thermogravimetry analysis (TGA), and according to their tensile, water absorption, and light transmission behavior. The introduction of 4 wt% CNC into the chitosan film did not affect the thermal stability, but the presence of 20 wt% glycerol reduced the thermal stability. The addition of 4 wt% CNC to the chitosan film increased its tensile strength, tensile modulus, and elongation at break by 206%, 138%, and 277%, respectively. However, adding more than 8 wt% CNC resulted in a drastic reduction in the strength and ductility of the chitosan film. The highest strength and stiffness of the chitosan bio-composite film were attained with 4 wt% CNC and 20 wt% glycerol. The water absorption and light transmission of the chitosan film were reduced dramatically by the presence of both CNC and glycerol.
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Yin, Shengyan, Xiaoju Men, Hang Sun, Ping She, Wei Zhang, Changfeng Wu, Weiping Qin, and Xiaodong Chen. "Enhanced photocurrent generation of bio-inspired graphene/ZnO composite films." Journal of Materials Chemistry A 3, no. 22 (2015): 12016–22. http://dx.doi.org/10.1039/c5ta02297e.

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Kale, Ravindra D., Yashlok Maurya, and Tejasvi Potdar. "Paper-reinforced sodium alginate/carboxyl methyl cellulose-based bio-composite films." Journal of Plastic Film & Sheeting 34, no. 2 (June 28, 2017): 179–95. http://dx.doi.org/10.1177/8756087917715675.

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Waste paper-reinforced sodium alginate/carboxymethyl cellulose (NaCMC)-based bio-composite films were prepared by solution casting method by optimum combination of 1.5% sodium alginate and 1.5% NaCMC. The optimum combination was selected on the basis of good tensile strength and low moisture sensitivity. This film was further subjected to aqueous solution of potassium aluminium sulphate (potassium alum) to reduce water vapour permeability and moisture content. This potassium alum solution treatment further enhanced the mechanical and thermal properties, and the film biodegradability was not affected either due to the cross linking or colour addition, which has potential as a substitute for the currently used polyethylene-based films. Molecular interactions between polymers and potassium alum affected mechanical, thermal, and other properties and was confirmed by Fourier transform infrared spectroscopy, X-ray diffraction, energy dispersive X-ray, and thermo gravimetric analysis of the films. This bio-composite film may be suitable to replace non-biodegradable and costly biodegradable packaging materials.
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Narita, Chieko, Yoko Okahisa, and Kazushi Yamada. "Plasticizing effect of lignin on urushi in bio-composite films." Polymer 161 (January 2019): 49–54. http://dx.doi.org/10.1016/j.polymer.2018.11.063.

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Palumbo, Fabio, Giuseppe Camporeale, Yi-Wei Yang, Jong-Shinn Wu, Eloisa Sardella, Giorgio Dilecce, Cosima Damiana Calvano, et al. "Direct Plasma Deposition of Lysozyme-Embedded Bio-Composite Thin Films." Plasma Processes and Polymers 12, no. 11 (June 9, 2015): 1302–10. http://dx.doi.org/10.1002/ppap.201500039.

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Ashok, B., K. Obi Reddy, K. Madhukar, J. Cai, L. Zhang, and A. Varada Rajulu. "Properties of cellulose/Thespesia lampas short fibers bio-composite films." Carbohydrate Polymers 127 (August 2015): 110–15. http://dx.doi.org/10.1016/j.carbpol.2015.03.054.

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Hu, YaJie, YaShuai Niu, GenQue Fu, PanPan Yue, MingFei Li, Feng Peng, and RunCang Sun. "Turning Wood Autohydrolysate Directly into Food Packing Composite Films with Good Toughness." International Journal of Polymer Science 2018 (March 25, 2018): 1–8. http://dx.doi.org/10.1155/2018/2097340.

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Bio-based composite films were produced by incorporating wood autohydrolysate (WH), chitosan (CS), and cellulose nanocrystals (CNC). In this work, WH was directly utilized without further purification, and CNC was introduced as the reinforced material to prepare WH-CS-CNC composite films with excellent properties. The effects of CNC on the properties of WH-CS-CNC composite films were investigated by characterizing their structures, mechanical properties, oxygen barrier, and thermal stability properties. The results suggested that CNC could improve tensile strength of the composite films, and the tensile strain at break could be up to 4.7%. Besides, the oxygen permeability of the prepared composite films could be as low as 3.57 cm3/day·m2·kPa, making them suitable for the food packaging materials. These above results showed that the addition of CNC is an effective method to enhance the toughness of composite films. In addition, WH-CS-CNC composite films have great potential in the field of sustainable food packing materials.
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Dissertations / Theses on the topic "Bio-composite films"

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Mujica, Randy. "Layer-by-Layer assembly of nanocellulose composite films with bio-inspired helicoidal superstructures." Thesis, Strasbourg, 2020. http://www.theses.fr/2020STRAE011.

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Les propriétés optiques et mécaniques remarquables des matériaux naturels sont souvent associées à la complexité de leurs structures hiérarchiques. L’une des plus complexes est la structure hélicoïdale, constituée de plusieurs couches de fibres alignées dont l’orientation tourne entre les couches voisines. Cette microstructure, dite de Bouligand, est associée à la résistance aux chocs accrue de la carapace de certains crustacés ainsi qu’à la réflexion préférentielle de la lumière polarisée circulaire de certains fruits et insectes. Dans ce travail, nous avons fabriqué des films minces bio-inspirés complexes composés de nanofibrilles de cellulose et de poly(vinylamine) en utilisant l'approche couche-par-couche (LbL) et la pulvérisation à incidence rasante (GIS), une méthode permettant de contrôler l'alignement dans le plan de nano-objets anisotropes comme les nanofibrilles de cellulose. Nous avons démontré la possibilité de contrôler de façon indépendante la direction de l'alignement de chaque couche de cellulose. Ainsi, nous avons pu préparer des films minces avec une orientation unidirectionnelle, croisée ou hélicoïdale des nanofibrilles de cellulose, ce qu’il n’est pas possible de faire avec d’autres procédés de fabrication. Les propriétés optiques de ces films ont été caractérisées par dichroïsme circulaire et ellipsométrie spectroscopique à matrice de Mueller. Nous avons observé que la réponse chirale des films hélicoïdaux est contrôlée par le sens de rotation, le pas de l’hélice et le nombre de couches avant rotation. Les propriétés mécaniques de ces films ont été étudiées par différentes méthodes de nanoindentation. La méthodologie de fatigue par nano-contact a montré une ductilité accrue des films unidirectionnels et hélicoïdaux, qui peut être indirectement liée à une absorption accrue de l'énergie de ce matériau lors des sollicitations en raison de sa structure interne
The remarkable optical and mechanical properties of natural materials are often associated with the complexity of their hierarchical structures. One of the most complexes is the helical structure which consists of several layers of unidirectionally aligned fibers whose orientation rotates with respect to their neighboring layers. This so-called Bouligand microstructure is responsible for the enhanced impact resistance of the shell of some crustaceans as well as the preferential reflection of circularly polarized light of certain fruits and insects. Here, we fabricated complex bio-inspired thin films made of cellulose nanofibrils and poly(vinylamine) using the layer-by-layer (LbL) approach and grazing incidence spraying (GIS), a method allowing to control the in-plane alignment of anisotropic nano-objects like cellulose nanofibrils. We demonstrated the independent direction of alignment of each cellulose layer, which allowed the preparation of thin films with well-defined internal structures, namely, unidirectional, cross-ply or helical arrangement of the reinforcing nanofibrils, which is impossible to achieve by any other fabrication process. The optical properties of these films were characterized by circular dichroism (CD) and by Mueller matrix ellipsometry. The chirality observed for helicoidal films is controlled by the rotation direction, the pitch, and the number of layers. The mechanical properties of these cellulose-based films were studied by various nanoindentation methods. A nano-contact fatigue methodology showed an increased ductility of the unidirectional and helicoidal films, which can be indirectly related to enhanced absorption of energy of this material owing to their internal structure
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Syed, Samira. "The Development Of Bio-Composite Films From Orange Waste : A Methodological And Evaluation Study Of Material Properties." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-25523.

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Bioplastic research has become more diverse and different types of research on bioplastic production have been conducted from fruits and vegetable waste, for example, orange waste. The wastes that come from oranges contain more than just vitamins, it has soluble sugars, starch, hemicellulose, cellulose, and pectin. The intention of this project was to study the possibility to produce bio-composite films from orange waste, after removing the soluble sugars. It was also to analyze the properties of the material by tensile strength, visual observation, and to find a methodology that suits this study. An ultrafine grinder was used to mechanically separate the cellulose fibres, with the intention to compare the fibrillation cycles on the properties of the bio-composite films. A total of 30fibrillation cycle was performed. In addition, different film casting strategies were performed and evaluated. The primary plan was to produce a biofilm without the use of chemicals. After the observing the results three new routes for the methodology was developed where the usage of chemicals was be included. The citric acid was used as a solvent for pectin and glycerol was used as a plasticizer. In the first method, different concentration of citric acid and glycerol were added and observed. The combination which gave uniformed films that contained 0.3 g of citric and 0.375 g of glycerol for a 75 ml hydrogel. The second method was to infuse citric acid before grinding the orange waste suspension. Lastly, the third method was to bleach the orange waste before grinding. The films that were produced gave interesting results and from the tensile testing implied that an impact was made on the strength by every fibrillation. The amount of glycerol was consistent throughout the project, but by adding different amount of citric acid gave the films differentIIproperties. The same happened when changing the mould of the film. The best values of the films were from the 30th fibrillation, gave the mean value of 31.6 MPa in tensile strength, and had a strain in elongation at 6.1 %. The tensile strength and elongation had increased drastically compared the fifth fibrillation which had 9.8 MPa and 7.6%.
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Shao, Yu-Han, and 邵郁涵. "Application of Combinational Antibacterial Effect of Chitosan and Natamycin on Storage of Bio-Cellulose Composite Films." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/36281100903818685001.

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碩士
國立宜蘭大學
食品科學系碩士班
103
The bacteria and mold can be observed on wet fabricated bio-film (WFBF) contaning high moisture content during long-term storage at room temperature. But treatment with single antibacterial substance with narrow targets usually requires high-dose and can be a problem. Therefore, this study investigated the combinational antibacterial effect of natural antibacterial and antifungal substances, chitosan (Chi) and natamycin (NAT), against Aspergillus niger, Staphylococcus aureus, Escheriachia coli and Pseudomona aeruginosa. In addition, the WFBF made of bacterial cellulose (BC) was immersed in combinational antibacterial solution to simulate the storage conditions of wet masks in market, and the synergistic effect was investigated. According to the 96-well microplate and inhibition zone tests, the minimum inhibitory concentration (MIC) of NAT against A. niger was 375 µg/mL, but ineffective against S. aureus, E. coli and P. aeruginosa. The MIC of Chi against S. aureus, E. coli and P. aeruginosa were 3,200 µg/mL, 6.25 µg/mL and 100 µg/mL, respectively, but ineffective against A. niger. The Chi/NAT under 200/188 µg/mL combinational ratio exhibited effective inhibition against A. niger, which reduced the dosage of antimicrobial substances and showed synergistic effect. For inhibition of S. aureus, high-dose of Chi was required during storage. The Chi/NAT dosage at 1,600/47 µg/mL inhibited the growth of S. aureus and E. coli within 168 hrs. Moreover, this dosage of Chi/NAT effectively inhibited the growth of A. niger for at less 21 days and exhibited synergistic effect. However, such dosage of Chi/NAT (1,600/188 µg/mL) could not effectively inhibit the growth of P. aeruginosa. In physical properties, there was no difference in the mechanical properties of WFBF within 24 hr storage, but water vapor transmission rate decreased. The WFBF was softened as prolonged the storage. These results indicated the combinational antibacterial effect of Chi and NAT can lower the dosage of antibacterial substances, and possesses the potential for substituting chemical preservatives to extend shelf life.
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WU, BING-HAN, and 吳秉翰. "The Test of Mechanical Properties and Simulation of PLA Bio-degradable Composite Film." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/50253615051080865919.

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碩士
南臺科技大學
機械工程系
104
The mechanical properties the bio-composite films which use the PLA (Poly lactic Acid) as the basic materials were studied by using static mechanics test, finite element simulation software in this work. The DIC optically image analysis was using to analyze the pictures which taken during the test to make sure that the films were extend average without any crooked to increase the accuracy of data. In the part of static mechanics test, the tensile testing machine and self-made clamps were used to conduct the ramp-told test of 8 kinds of PLA films which has different kinds of ingredients and content of additives, and calculate the average value and standard deviation by analyze the force, stress and strain according to the test data to make a preliminary comparison for different kinds of PLA films. Then, the finite element simulation software was used to make the simulation to compare with the reality test data. After the test, the relationship between ingredient and mechanical properties of inorganic silicon films is similar to the situation we estimated first, but it has the biggest force at the slowest speed. It can only surmised that the inorganic silicon films may will be hardening gradually after the test. The organic silicon films showed the best mechanical properties at 0.5% of ingredient of silicon. It can be confirmed that the organic silicon films won't produce the similar situation with inorganic silicon films by observed the relationship between ingredient and mechanical properties of organic silicon films. At the part of fitting, the error between the actual data and simulated data was getting bigger as time goes on. It can be confirmed that is related to the broken of films during the test. In the micrograph of films, there are many tiny cracks can be observed. As the result, it can say that the second half of the test may be affected because of the cracks which were getting bigger or extra generated cracks during the test.
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Book chapters on the topic "Bio-composite films"

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Cakmak, Hulya, and Ece Sogut. "Functional Biobased Composite Polymers for Food Packaging Applications." In Reactive and Functional Polymers Volume One, 95–136. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43403-8_6.

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AbstractBiobased polymers are of great interest due to the release of tension on non-renewable petroleum-based polymers for environmental concerns. However, biobased polymers usually have poor mechanical and barrier properties when used as the main component of coatings and films, but they can be improved by adding nanoscale reinforcing agents (nanoparticles - NPs or fillers), thus forming nanocomposites. The nano-sized components have a larger surface area that favors the filler-matrix interactions and the resulting material yield. For example, natural fibers from renewable plants could be used to improve the mechanical strength of the biobased composites. In addition to the mechanical properties, the optical, thermal and barrier properties are mainly effective on the selection of type or the ratio of biobased components. Biobased nanocomposites are one of the best alternatives to conventional polymer composites due to their low density, transparency, better surface properties and biodegradability, even with low filler contents. In addition, these biomaterials are also incorporated into composite films as nano-sized bio-fillers for the reinforcement or as carriers of some bioactive compounds. Therefore, nanostructures may provide antimicrobial properties, oxygen scavenging ability, enzyme immobilization or act as a temperature or oxygen sensor. The promising result of biobased functional polymer nanocomposites is shelf life extension of foods, and continuous improvements will face the future challenges. This chapter will focus on biobased materials used in nanocomposite polymers with their functional properties for food packaging applications.
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Sucinda, E. F., M. S. Abdul Majid, M. J. M. Ridzuan, and E. M. Cheng. "Polylactic Acid (PLA) Bio-Composite Film Reinforced with Nanocrystalline Cellulose from Napier Fibers." In Lecture Notes in Mechanical Engineering, 997–1003. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0866-7_87.

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Nabok, A. V., A. K. Ray, A. K. Hassan, and N. F. Starodub. "Composite Polyelectrolyte Self-Assembled Films for Chemical and Bio-Sensing." In Studies in Interface Science, 351–70. Elsevier, 2001. http://dx.doi.org/10.1016/s1383-7303(01)80033-8.

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Halimatul, M. J., S. M. Sapuan, N. Julkapli, M. Jawaid, M. R. Ishak, and Mohammad Taha Mastura. "Starch Cellulosic Bio-Composites." In Advances in Environmental Engineering and Green Technologies, 28–55. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1374-3.ch002.

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This review discusses the effect of nanocellulose or lignocellulosic fibers introduced in starch films. A concise comparison in the mechanical and water absorption properties of the nanocellulose-reinforced starch originated from different plant species was made. It was found that most of these studies prefer solution casting as popular fabrication technique. Studies found nanocellulose generates positive results on mechanical and water uptake properties. The increment in tensile strength was reported between 1.08 to slightly higher than 2-fold while water uptake was decreased between 1.14 to 1.19-fold. In addition, the fibers also serves well as a reinforcement material for starch matric although not as competent as nanocellulose. Discussion on improvement in mechanical, water uptake, thermal, and biodegradation of lignocellulosic fiber-reinforced starch was presented in this chapter. This review also emphasizes potential uses of nanocellulose reinforced starch composite as a smart food packaging and bio-carrier in bio-delivery system where it contributes considerably to a better life.
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Conference papers on the topic "Bio-composite films"

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Chanda, Anupama, Nabajyoti Rajkonwar, Khalid Bin Masood, Jai Singh, and Prashant Shukla. "Study of bio-polymer derived graphene oxide-ZnO nano-composite thin films." In 3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0001315.

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Mallick, Nirlipta, Dharm Pal, and A. B. Soni. "Corn-starch/polyvinyl alcohol bio-composite film for food packaging application." In SECOND INTERNATIONAL CONFERENCE ON MATERIAL SCIENCE, SMART STRUCTURES AND APPLICATIONS: ICMSS-2019. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5141429.

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