Rozanna Dewi, Yulfa Salsabila, Zulnazri, Novi Sylvia, Medyan Riza, Farah Diba
Biocomposite is a composite material with one of its constituents being natural, for example using natural fiber or matrix. Eco-friendly plastic from natural fiber is an effort made to keep the preservation of the environment. A composite of natural fibers is expected to be a material that can be used to reduce and prevent the effects of environmental damage from a polymer material that cannot be degraded. Therefore, it is required to synthesize biocomposite which can be decomposed naturally in a short period. In this research, the synthesis of biocomposite from sago starch using fiber skin of Areca Nut filler (Areca Catechu L. Fiber) with polypropylene matrix. This study aims to analyze the mechanical properties of biocomposites such as tensile strength and percent elongation, water absorption as well as biodegradability test. The results of the tensile strength test showed the best value of 8.12 MPa obtained at the highest fiber content of 35% with a ratio of TPS:PP of 1:1.5. For percent elongation, the best value of 10, 89% was obtained at the highest fiber content of 35% with a ratio of TPS:PP 1:0.5. The modulus of elasticity obtained was 80 MPa at the highest fiber content of 30% with a ratio of TPS:PP of 1:1. Meanwhile, the best biodegradability rate obtained was 87.52% at a fiber content of 35% with a ratio of TPS:PP of 1:0.5. The lowest value of water absorption was 6.30%, obtained at the fiber content of 35% with a ratio of TPS:PP of 1:1.5. From the result obtained, it can be concluded that the mechanical property, water absorption, and biodegradability of biocomposite was influenced by the composition of the fiber and polypropylene in the thermoplastic starch (TPS). Higher fiber and polypropylene content improved the mechanical property of biocomposite, but higher polypropylene content reduced the ability of the water absorption and biodegradability rate. © 2024 American Institute of Physics Inc.. All rights reserved.
Chemical Engineering Department, Engineering Faculty, Universitas Malikussaleh, Bukit Indah, Lhokseumawe, Aceh, Indonesia; Chemical Engineering Department, Engineering Faculty, Universitas Syiah Kuala, Darussalam, Banda Aceh, Aceh, Indonesia; Material Engineering Department, Engineering Faculty, Universitas Malikussaleh, Bukit Indah, Lhokseumawe, Aceh, Indonesia
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