Injection molded foamed rice straw/LDPE with sodium bicarbonate and citric acid foaming agent : effect of foaming agent composition

Rice straw-LDPE foamed had been produced by incorporating foaming agent, which was the mixture of sodium bicarbonate and citric acid. The foam structure is produced when temperature is applied and the foaming agent decomposes. The effect of foaming agent composition on the morphology structure, dens...

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Main Author:	Omar, Noor Farhana
Format:	Thesis
Language:	English
Published:	2009
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/26805/1/NoorfarhanaomarMFKKKSA2009.pdf
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id	my-utm-ep.26805
record_format	uketd_dc
spelling	my-utm-ep.268052017-06-15T07:29:55Z Injection molded foamed rice straw/LDPE with sodium bicarbonate and citric acid foaming agent : effect of foaming agent composition 2009 Omar, Noor Farhana TP Chemical technology Rice straw-LDPE foamed had been produced by incorporating foaming agent, which was the mixture of sodium bicarbonate and citric acid. The foam structure is produced when temperature is applied and the foaming agent decomposes. The effect of foaming agent composition on the morphology structure, density, water absorption behavior and hardness were studied. The compounding material which were rice straw, LDPE, starch, maleic anhydride and glycerol were mixed in the twin screw extruder. Then, the foaming agent was mixed with the compounded material and injected using the injection molding machine to produce foam product. Samples with foaming agent show the present of the foam structure that increases in size with foaming agent composition. The type of cell form is open cell. For the physical properties, as the amount of foaming agent increases, the density is decreased, the percentage of water absorbed increased and the hardness value is decreased. 2009 Thesis http://eprints.utm.my/id/eprint/26805/ http://eprints.utm.my/id/eprint/26805/1/NoorfarhanaomarMFKKKSA2009.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:90474?public=true masters Universiti Teknologi Malaysia, Faculty of Chemical and Natural Resources Engineering Faculty of Chemical and Natural Resources Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Omar, Noor Farhana Injection molded foamed rice straw/LDPE with sodium bicarbonate and citric acid foaming agent : effect of foaming agent composition
description	Rice straw-LDPE foamed had been produced by incorporating foaming agent, which was the mixture of sodium bicarbonate and citric acid. The foam structure is produced when temperature is applied and the foaming agent decomposes. The effect of foaming agent composition on the morphology structure, density, water absorption behavior and hardness were studied. The compounding material which were rice straw, LDPE, starch, maleic anhydride and glycerol were mixed in the twin screw extruder. Then, the foaming agent was mixed with the compounded material and injected using the injection molding machine to produce foam product. Samples with foaming agent show the present of the foam structure that increases in size with foaming agent composition. The type of cell form is open cell. For the physical properties, as the amount of foaming agent increases, the density is decreased, the percentage of water absorbed increased and the hardness value is decreased.
format	Thesis
qualification_level	Master's degree
author	Omar, Noor Farhana
author_facet	Omar, Noor Farhana
author_sort	Omar, Noor Farhana
title	Injection molded foamed rice straw/LDPE with sodium bicarbonate and citric acid foaming agent : effect of foaming agent composition
title_short	Injection molded foamed rice straw/LDPE with sodium bicarbonate and citric acid foaming agent : effect of foaming agent composition
title_full	Injection molded foamed rice straw/LDPE with sodium bicarbonate and citric acid foaming agent : effect of foaming agent composition
title_fullStr	Injection molded foamed rice straw/LDPE with sodium bicarbonate and citric acid foaming agent : effect of foaming agent composition
title_full_unstemmed	Injection molded foamed rice straw/LDPE with sodium bicarbonate and citric acid foaming agent : effect of foaming agent composition
title_sort	injection molded foamed rice straw/ldpe with sodium bicarbonate and citric acid foaming agent : effect of foaming agent composition
granting_institution	Universiti Teknologi Malaysia, Faculty of Chemical and Natural Resources Engineering
granting_department	Faculty of Chemical and Natural Resources Engineering
publishDate	2009
url	http://eprints.utm.my/id/eprint/26805/1/NoorfarhanaomarMFKKKSA2009.pdf
_version_	1747815515180498944

Injection molded foamed rice straw/LDPE with sodium bicarbonate and citric acid foaming agent : effect of foaming agent composition

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