Pembuatan Dan Karakterisasi Plastik Biodegradable Dari Campuran HDPE (High Density Polyethylene) Dan Polimer Pati Jagung.

Putra, Fadhil Ananta (2022) Pembuatan Dan Karakterisasi Plastik Biodegradable Dari Campuran HDPE (High Density Polyethylene) Dan Polimer Pati Jagung. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada penelitian ini telah dibuat plastik biodegradable dari campuran polimer pati jagung dan HDPE dengan variasi komposisi polimer pati jagung 10%, 20%, 30% dan 40%. Polimer pati jagung yang digunakan dibuat dengan metode casting dengan komposisi pati 10 g, gliserol 3 mL dan aquades 100 mL. Polimer pati jagung dan HDPE dicampurkan dengan metode ekstrusi menggunakan mesin injection molding dengan tekanan 150 kgf/cm². Hasil karakterisasi menunjukkan bahwa penambahan polimer pati jagung mempengaruhi karakteristik plastic biodegradable yang telah dibuat. Setiap penambahan 10% polimer pati jagung pada HDPE menurunkan kekuatan tarik sebesar 1,043 MPa, menurunkan elongasi sebesar 5,02%, menurunkan densitas sebesar 0,013 g/cm3, meningkatkan nilai derajat penggembungan sebesar 0,793%, dan meningkatkan laju biodegradasi sebesar 0,03 mg/hari. Analisis statistik Kruskal-Wallis menunjukkan bahwa sampel plastik biodegradable terbaik adalah sampel dengan komposisi 30% polimer pati mg/hari.
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In this study, biodegradable plastics have been made from a mixture of corn starch polymer and HDPE with varying composition of corn starch polymer at 10%, 20%, 30% and 40%. The corn starch polymer used is made by the casting method with a composition of 10g starch, 3 mL glycerol and 100 mL aquades. Corn starch polymer and HDPE are mixed by extrusion method using an injection molding machine with a pressure of 150 kgf /cm². The characterization results show that the addition of corn starch polymer affects the characteristics of the biodegradable plastics that have been made. Each addition of 10% corn starch polymer to HDPE lowers the tensile strength by 1.043 MPa, lowers the elongation by 5.02%, lowers the density by 0.013 g/cm3, increases the swelling degree by 0.793%, and increases the rate of biodegradation by 0.03 mg/day. The Kruskal-Wallis statistical analysis showed that the best biodegradable plastic sample was that with a composition of30% corn starch polymer. This sample had a tensile strength of 12.822 MPa, an elongation of 13.431%, a swelling degree of 0.22%, a density of 1.12 g/cm3 and a biodegradation rate of 0.21 mg/day.

Item Type:	Thesis (Other)
Additional Information:	RDK 668.1 Maw s-1 2022
Uncontrolled Keywords:	campuran polimer, polimer pati, HDPE, plastik biodegradable. starch polymer, HDPE, polymer blend, biodegradabe plastic.
Subjects:	T Technology > TP Chemical technology > TP994 Surface active agents.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	11 May 2026 01:36
Last Modified:	12 May 2026 09:29
URI:	http://repository.its.ac.id/id/eprint/133096

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