UNIVERSITAS AIRLANGGA



Detail Article

Kimia FST

ISSN -

Vol. 1 / No. 1 / Published : 2013-07

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Original Article :

Pembuatan dan karakterisasi bioplastik dari komposit kitosan-pati singkong-selulosa diasetat dari serat batang pisang kepok (musa paradisiaca normalis) dengan plasticizer asam stearat

Author :

  1. Siti Wafiroh*1
  2. Dr.Ir. Suyanto*2
  3. Laras Rizqonia Hillan*3
  1. Dosen Departemen Kimia FST Unair
  2. Dosen Departemen Kimia FST Unair
  3. Mahasiswa Departemen Kimia FST Unair

Abstract :

Bioplastics are plastics alternatives to replace the difficult commercial plastic degraded in the environment. This study aims to determine the characteristics of bioplastic composite chitosan-cassava starch-cellulose diacetate with plasticizer stearic acid. Synthesis of chitosan from small crab waste includes deproteinasi stage, demineralization, depigmentation, and deacetylation. While the synthesis cellulose diacetate from stem fibers of kepok banana (Musa paradisiaca normalis) through swelling stage, acetylation, and hydrolysis. Chitosan and cellulose diacetate, were characterized by solubility test, determination of average molecular weight, and FTIR. Bioplastics are made ​​from the chitosan-starch with a variety of cellulose diacetate 2%, 3%, 4% and 5%, and tested the mechanical properties. Mechanical properties of bioplastics with a maximum variation of stearic acid was added to 2%, 3%, 4% and 5%. Characterization of bioplastics include the thickness of the test,  mechanical test, swelling test, endurance test and permeability to water, SEM, FTIR, and microbial degradation test of bioplastics. The results showed the optimum bioplastics from chitosan 3%, starch 2%, cellulose diacetate 3% and 4% stearic acid has a thickness of 0.01 mm, stress 0,0200 (kN/mm2), strain 0,0947, and modulus young 0.2112 (kN/mm2). Bioplastics have 0,35 % swelling. Based on the SEM, showed that the bioplastic has a flat surface and not porous. The result of microbial degradation test showed that bioplastics can be degraded within 3 days, while the commercial plastic can not be degraded.

Keyword :

cassava starch, chitosan, cellulose diacetate, bioplastic,


References :

Agustin, T. E,(2010) Pembuatan dan Karakterisasi Edible film dari Komposit Kitosan-Pati Garut (Maranta arundinaceae L) dengan Pemlastis Asam Laurat Surabaya : Fakultas Sains dan Teknologi





Archive Article

Cover Media Content

Volume : 1 / No. : 1 / Pub. : 2013-07
  1. Pembuatan Dan Karakterisasi Bioplastik Dari Komposit Kitosan-pati Singkong-selulosa Diasetat Dari Serat Batang Pisang Kepok (musa Paradisiaca Normalis) Dengan Plasticizer Asam Stearat
  2. Sintesis Dan Karakterisasi Material Magnetik Berbasis Senyawa Kompleks Inti Ganda Besi(iii) Dengan 2,2-bipiridin Menggunakan Ligan Jembatan Oksalat
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