Pengaruh Perbandingan Pati Biji Sorgum (Sorghum Bicolor (l.) Moench) dan Poly Lactic Acid (PLA) terhadap Karakteristik Plastik Biodegradable

  • Siti Sarifah
  • Yusmaniar Yusmaniar Progrm Studi Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Jakarta, Jl. Rawamangun Muka, Rawamangun 13220, Jakarta, Indonesia
  • Zulmanelis Darwis

Abstract

This study aims to determine the effect of Sorghum and Poly lactic acid (PLA) on the plastic characteristics that can be seen from tensile strength, water resistance, and biodegradability. The method used blending (mixing) sorghum seed starch, PLA, glycerol, acetic acid, and maleic anhydride. From the results of infrared spectrum analysis on the visible plastic peak area 2250-2300 cm-1which indicates the absorption of carbon dioxide. This plastic has an optimum water resistance of 92.76% in the ratio of Pati 0.6g: PLA 2.6g. The optimum tensile test results in a comparison of 0.2g starch: PLA 3g with a value of 10.58 Mpa. Optimum biodegradation test results in starch ratio of 0.6g: PLA 2.6g of 13.61%. From the data obtained can be concluded the optimum biodegradation and water endurance test on the ratio of starch 0.6g: PLA 2.6g.

 

Keyword: Seaweed starch, PLA, glycerol, maleic anhydrous, biodegraded plastic

Published
2017-07-27
How to Cite
Sarifah, S., Yusmaniar, Y., & Darwis, Z. (2017, July 27). Pengaruh Perbandingan Pati Biji Sorgum (Sorghum Bicolor (l.) Moench) dan Poly Lactic Acid (PLA) terhadap Karakteristik Plastik Biodegradable. JRSKT - Jurnal Riset Sains Dan Kimia Terapan, 7(1), 26 - 29. https://doi.org/https://doi.org/10.21009/JRSKT.071.05