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Abstract
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In this research, polyvinyl alcohol (PVA)–chitosan composite films were made with nanocellulose from coconut fibers. The process began with the separation of lignin and hemicellulose through delignification and bleaching, and then the hydrolysis of cellulose to produce nanocellulose. Nanocellulose was characterized by FTIR, SEM and X-ray diffractometer. Furthermore, the PVA was mixed with chitosan in specific compositions and added to the nanocellulose in a particular concentration. A tensile test was conducted to obtain tensile strength and elongation break. A biodegradable test was also performed to determine the levels of weight loss and degradation. Based on SEM observations, the addition of nanocellulose appears to increase the reactivity of the formation of PVA-chitosan composite films, which are characterized by a reduction in film thickness. In addition, the results showed that nanocellulose, at a concentration of 5 % of the total mass, increased the tensile strength of the PVA-chitosan composite film up to 31.50 MPa.
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