Preparation And Characterization Of Biobased Thermoplastic Starch/Polypropylene Blends For Thermoforming Application

In this study, thermoplastic starch (TPS) derived from agricultural waste sources (i.e., agricultural waste seed, AWS and agricultural waste tuber, AWT) was blended with polypropylene (PP) to form a biobased compound. The utilization of starch-containing agricultural waste can provide a solution for...

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Main Author:	Pang, Ming Meng
Format:	Thesis
Language:	English
Published:	2013
Subjects:	QD1-999 Chemistry
Online Access:	http://eprints.usm.my/43913/1/Pang%20Ming%20Meng24.pdf
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id	my-usm-ep.43913
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spelling	my-usm-ep.439132019-04-12T05:26:11Z Preparation And Characterization Of Biobased Thermoplastic Starch/Polypropylene Blends For Thermoforming Application 2013-07 Pang, Ming Meng QD1-999 Chemistry In this study, thermoplastic starch (TPS) derived from agricultural waste sources (i.e., agricultural waste seed, AWS and agricultural waste tuber, AWT) was blended with polypropylene (PP) to form a biobased compound. The utilization of starch-containing agricultural waste can provide a solution for the waste disposal issue, avoiding the conflict of using food crops starch as feedstock and diversify the usage of waste. Native tapioca starch (NTS) and commercially available biobased sample (CS) were also used for comparison. The optimum formulation was identified through a design of experiment (DOE). The biobased compounds were prepared by using twin-screw extruder, which later subjected to sheet extrusion and thermoforming process. The TPS/PP blends were able to meet the minimum 25% biobased content target as required by various biobased international organizations. The biobased materials behaviour were investigated through thermal, physical, tensile, water absorption, aerobic biodegradation, indoor and outdoor soil burial, natural weathering and carbon footprint study. The higher amylopectin content present in the agricultural waste starch blend (i.e. AWS/PP) was more susceptible to thermal degradation than amylose-rich material (i.e., NTS/PP). The onset degradation temperature of starch component has a direct impact on the decomposition temperature of PP. The addition of starch into the PP not only led to a stiffening effect and resulted in an increase in the storage modulus; it also affected the relaxation of the polymer matrix by shifting the thermal transition (i.e., Tg) to a higher temperature. 2013-07 Thesis http://eprints.usm.my/43913/ http://eprints.usm.my/43913/1/Pang%20Ming%20Meng24.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Sains Kimia
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QD1-999 Chemistry
spellingShingle	QD1-999 Chemistry Pang, Ming Meng Preparation And Characterization Of Biobased Thermoplastic Starch/Polypropylene Blends For Thermoforming Application
description	In this study, thermoplastic starch (TPS) derived from agricultural waste sources (i.e., agricultural waste seed, AWS and agricultural waste tuber, AWT) was blended with polypropylene (PP) to form a biobased compound. The utilization of starch-containing agricultural waste can provide a solution for the waste disposal issue, avoiding the conflict of using food crops starch as feedstock and diversify the usage of waste. Native tapioca starch (NTS) and commercially available biobased sample (CS) were also used for comparison. The optimum formulation was identified through a design of experiment (DOE). The biobased compounds were prepared by using twin-screw extruder, which later subjected to sheet extrusion and thermoforming process. The TPS/PP blends were able to meet the minimum 25% biobased content target as required by various biobased international organizations. The biobased materials behaviour were investigated through thermal, physical, tensile, water absorption, aerobic biodegradation, indoor and outdoor soil burial, natural weathering and carbon footprint study. The higher amylopectin content present in the agricultural waste starch blend (i.e. AWS/PP) was more susceptible to thermal degradation than amylose-rich material (i.e., NTS/PP). The onset degradation temperature of starch component has a direct impact on the decomposition temperature of PP. The addition of starch into the PP not only led to a stiffening effect and resulted in an increase in the storage modulus; it also affected the relaxation of the polymer matrix by shifting the thermal transition (i.e., Tg) to a higher temperature.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Pang, Ming Meng
author_facet	Pang, Ming Meng
author_sort	Pang, Ming Meng
title	Preparation And Characterization Of Biobased Thermoplastic Starch/Polypropylene Blends For Thermoforming Application
title_short	Preparation And Characterization Of Biobased Thermoplastic Starch/Polypropylene Blends For Thermoforming Application
title_full	Preparation And Characterization Of Biobased Thermoplastic Starch/Polypropylene Blends For Thermoforming Application
title_fullStr	Preparation And Characterization Of Biobased Thermoplastic Starch/Polypropylene Blends For Thermoforming Application
title_full_unstemmed	Preparation And Characterization Of Biobased Thermoplastic Starch/Polypropylene Blends For Thermoforming Application
title_sort	preparation and characterization of biobased thermoplastic starch/polypropylene blends for thermoforming application
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Kimia
publishDate	2013
url	http://eprints.usm.my/43913/1/Pang%20Ming%20Meng24.pdf
_version_	1747821303293804544

Preparation And Characterization Of Biobased Thermoplastic Starch/Polypropylene Blends For Thermoforming Application

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