Faridah Faridah, Halim Zaini, Febri Nanda Kurniawan
Bioplastics are made from starch that can be decomposed naturally to be an alternative to commercial plastics. The research objective was to know the effect of the composition of mangrove powder and glycerol on the characteristics of the synthesized bioplastics. This study also obtained the maximum composition of bioplastics made from mangrove powder by adding glycerol and chitosan. In this study, bioplastics were synthesized using starch as an optimizer of the mechanical properties of bioplastics, chitosan as reinforcement and water repellent, and glycerol as a plasticizer. The results of bioplastics were characterized by mechanical properties (tensile strength and elongation), hydrophobility, biodegradation, and functional groups. Based on the study's results, the optimum composition of bioplastics was found, namely mangrove 2 grams and glycerol 0.9 ml, with a tensile strength value of 1,600 MPa, 67.9% elongation, 34.75% hydrophobility, and 39.98% biodegradation. The main functional groups of bioplastics were shown through the results of FTIR analysis, such as NH (3294.58 cm-1), CH (2883.58 cm-1), OH (2129.41 cm-1), and CO (1755.22 cm-1). © 2022 by the authors.
Politeknik Negeri Lhokseumawe, Indonesia
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