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Title
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Physical, Mechanical, and Thermal Properties of Polyvinyl Alcohol/Nanocrystalline Cellulose Bioplastic Film
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Type
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Refereeing
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Keywords
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Bioplastic film, Nanocrystalline cellulose, Polyvinyl alcohol
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Abstract
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The bioplastic film based on PVA (Polyvinyl Alcohol) for food packaging has been widely developed by researchers because of its biodegradable properties and safety. Nanocrystalline cellulose (NCC) is used as reinforcement in various concentrations. NCC was extracted from commercial MCC (microcrystalline cellulose) by acid hydrolysis (46 wt.%) and followed by ultrasonication treatments. It produces a high crystallinity index of NCC by 76.4% as physical properties. This study aims to evaluate the mechanical and physical properties of adding NCC into PVA bioplastic film. NCC was successfully investigated by TEM (Transmission Electron Microscope), and calculated by image-J software were results a diameter by 25 nm and a length by 310 nm in the needle shape form. Adding NCC into PVA as filler reinforcement increases the mechanical strength and elastic modulus by 35% and 40%, respectively. The UV-rays blocked by 36%, and thermal resistance raises by 25°C. Their excellent properties make PVA+NCC bioplastic composite materials potentially used in food packaging.
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Researchers
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Hossein Zare (Referee)
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