Study of the influence of ZnO addition on the properties of chitosan-banana starch bioplastics

Sapei, Lanny and Padmawijaya, Karsono Samuel and Sijayanti, Okky and Wardhana, P.J. (2016) Study of the influence of ZnO addition on the properties of chitosan-banana starch bioplastics. IOP Conference Series: Materials Science and Engineering, 223 (1). ISSN 1757-899X

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Plastics have been widely used in our daily life due to their relatively low cost and practical uses. However, plastics are hardly degraded and thus creating lots of environmental problems. Bioplastics have been developed in order to replace the conventional plastics since they are easily degraded and environmentally friendly. In this research, chitosan-banana starch bioplastics were made with the ratio of 70:30 in the presence of 30% glycerol as the plasticizer. ZnO with varying concentrations of 1, 3, and 5% were added into the biopolymer mixtures before casting in order to improve their mechanical properties. It turned out that 3% ZnO significantly increased the bioplastics tensile strength up to ~36MPa. Vice versa, elongation and swelling percentage were decreased as ZnO concentrations increased. Bioplastics prepared with 3% ZnO were degraded within relatively short time in 90 min. These chitosan-banana starch bioplastics reinforced by ZnO seems quite promising to substitute some commercial conventional plastics.

Item Type: Article
Uncontrolled Keywords: banana, bioplastic, chitosan, tensile strength, ZnO
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Engineering > Department of Chemical Engineering
Depositing User: Eko Setiawan 194014
Date Deposited: 28 Aug 2017 06:27
Last Modified: 09 Nov 2020 06:22

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