Natural B
Vol 1, No 1 (2011)

Mechanical Properties Characterizations of Cassava Starch using Glycerol and Sorbitol Plasticizer

Lailatin Nuriyah (Jurusan Fisika Fakultas MIPA Universitas Brawijaya Jalan Veteran Malang 65145)
Siti Jazimah Iswarin (Jurusan Fisika Fakultas MIPA Universitas Brawijaya Jalan Veteran Malang 65145)
Wiyono Wiyono (Jurusan Fisika Fakultas MIPA Universitas Brawijaya Jalan Veteran Malang 65145)



Article Info

Publish Date
01 Apr 2011

Abstract

Bioplastic is a kind of plastic that biodegradable, and is made from renewable materials. This experiment has been intended to produce bioplastic from biopolymer such as: cassava flour, gelatin, jelly, with glycerol and sorbitol plasticizers.  The basic materials (flour, gelatin, and jelly) compared to plasticizer is 3:2. The first sample is made with various amounts of gelatin and cassava flour, with a certain amount of plasticizer; the second sample is made with basic material are fixed, and plasticizer are varied. Syntheses were done by blending method at 90 °C. The mixing is done until the solution is homogeny, and then casting into the caster. The characterization mechanical test includes strain and stress with prior heating at 5°C, 25 °C and 45 °C. Strain test maximum is 2,456 N/mm2 for sample K3-L with prior heating at 45°C, and maximum stress of 115 % for sample K5-L at 25 °C.  The Influence of variation of flour, gelatin, sorbitol and glycerol to tension is not predictable.

Copyrights © 2011






Journal Info

Abbrev

NATURAL B

Publisher

Subject

Environmental Science

Description

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