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Development of Lignin Modified Tapioca Starch for Biodegradable Film

Rozman, Hannan (2011) Development of Lignin Modified Tapioca Starch for Biodegradable Film. Universiti Teknologi PETRONAS. (Unpublished)

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The objective of the present investigation is to synthesize starch/Iignin film, a new starch based polymer and to evaluate its application in the design of controlled release fertilizer. The properties of the film were compared with different ratio of lignin content. Starch/Iignin polymer was synthesized by gelatinlzation of starch in the presence of urea, borax and lignin. Thermal Gravitational Analyzer (TGA), Scanning Electron Microscopy (SEM), X-ray Diffusion (XRD), and Universal Testing Machine (UTM) are used to evaluate the influence of lignin content on the film mechanical and thermal properties. The film was prepared by using solution casting method composed of tapioca starch mixed with lignin. Other tests such as biodegradability test and water absorption test have been performed and it is shown that lignin actually reduced the water affinity ofthe films. The results prove that the water-uptake of these blends could be reduced Midthat simultaneously stiffer materials with a less pronounced degradation rate can be obtained.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Biofuel
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 2053 not found.
Date Deposited: 24 Oct 2013 09:13
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/9545

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