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Characterization Studies of Thermoplastic Starch Enhanced With [Emim][OAc

Ma‟amor, Nor Hazwani (2015) Characterization Studies of Thermoplastic Starch Enhanced With [Emim][OAc. IRC, Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

This study investigates the effect of using ionic liquid 1-ethyl-3-methylimidazolium acetate [Emim][OAc] as plasticizer for the improvement of thermoplastic starch (TPS) material. The physical and chemical properties of the TPS were studied and investigated in this project. The results of morphology analysis with scanning electron microscope (SEM), crystallography analysis by x-ray diffraction (XRD) and thermal degradation by thermogravimetric analysis (TGA) show that 70% of total plasticizer content mixed well during thermo plasticization process. [Emim][OAc] caused starch granule to disrupt as shown by SEM due to its ability to access the passages within the starch structure. By XRD analysis, it was shown that plasticized starch at 70% total plasticizer content and 1:4 [Emim][OAc]/water ratio, made disruption to the A-type crystalline structure, generated -type crystalline structure and thus increased the mobility of the amorphous starch. The presence of [Emim][OAc] promote the thermal degradation of starch molecules as described by TGA as it slows the thermal decomposition rate of the starch. Therefore, plasticizer content and [Emim][OAc]/water ratio were parameters that also influencing the properties of starch-based polymer. The use of ionic liquid as an enhancement for starch as fertilizer coating material fertilizer is anticipated to reduce volatilization of ammonia into environment and increase its utilization by crops.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Separation Process
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 02 Nov 2015 15:53
Last Modified: 25 Jan 2017 09:36
URI: http://utpedia.utp.edu.my/id/eprint/15767

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