Effect of sodium bicarbonate as blowing agent on production of epoxy shape memory foam using aqueous processing method

Epoxy shape memory foam (ESM) was produced by an advanced aqueous method. Mixture of epoxy, sodium bicarbonate, hardener and ammonium chloride was premixed and emulsified in distilled water by using high speed stirring (at 1200 rpm). The content of sodium bicarbonate used was 5, 10, 15 and 20 phr. B...

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Main Authors:	Muhammad Syazwan Fauzi, Du N.U. Lan, Hakimah Osman, Supri A. Ghani
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2015
Online Access:	http://journalarticle.ukm.my/8967/ http://journalarticle.ukm.my/8967/ http://journalarticle.ukm.my/8967/1/13_Muhammad_Syazwani.pdf

id	ukm-8967
recordtype	eprints
spelling	ukm-89672016-12-14T06:48:34Z http://journalarticle.ukm.my/8967/ Effect of sodium bicarbonate as blowing agent on production of epoxy shape memory foam using aqueous processing method Muhammad Syazwan Fauzi, Du N.U. Lan, Hakimah Osman, Supri A. Ghani, Epoxy shape memory foam (ESM) was produced by an advanced aqueous method. Mixture of epoxy, sodium bicarbonate, hardener and ammonium chloride was premixed and emulsified in distilled water by using high speed stirring (at 1200 rpm). The content of sodium bicarbonate used was 5, 10, 15 and 20 phr. Besides that, ammonium chloride was used (based on stoichiometrical content) to also function as acidifying agent in initiating the decomposition process of sodium bicarbonate at lower foaming temperature. The foam morphology was observed using SEM. It was found that higher sodium bicarbonate produced more porosity, more cell size, thinner cell wall and more cell interconnection. Epoxy shape memory foam with 10 phr of sodium bicarbonate exhibited good shape memory property and better compression set. Shape memory behaviour was measured by the recovered time of the transformed sample to its original shape. Universiti Kebangsaan Malaysia 2015-06 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/8967/1/13_Muhammad_Syazwani.pdf Muhammad Syazwan Fauzi, and Du N.U. Lan, and Hakimah Osman, and Supri A. Ghani, (2015) Effect of sodium bicarbonate as blowing agent on production of epoxy shape memory foam using aqueous processing method. Sains Malaysiana, 44 (6). pp. 869-874. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid44bil6_2015/KandunganJilid44Bil6_2015.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Epoxy shape memory foam (ESM) was produced by an advanced aqueous method. Mixture of epoxy, sodium bicarbonate, hardener and ammonium chloride was premixed and emulsified in distilled water by using high speed stirring (at 1200 rpm). The content of sodium bicarbonate used was 5, 10, 15 and 20 phr. Besides that, ammonium chloride was used (based on stoichiometrical content) to also function as acidifying agent in initiating the decomposition process of sodium bicarbonate at lower foaming temperature. The foam morphology was observed using SEM. It was found that higher sodium bicarbonate produced more porosity, more cell size, thinner cell wall and more cell interconnection. Epoxy shape memory foam with 10 phr of sodium bicarbonate exhibited good shape memory property and better compression set. Shape memory behaviour was measured by the recovered time of the transformed sample to its original shape.
format	Article
author	Muhammad Syazwan Fauzi, Du N.U. Lan, Hakimah Osman, Supri A. Ghani,
spellingShingle	Muhammad Syazwan Fauzi, Du N.U. Lan, Hakimah Osman, Supri A. Ghani, Effect of sodium bicarbonate as blowing agent on production of epoxy shape memory foam using aqueous processing method
author_facet	Muhammad Syazwan Fauzi, Du N.U. Lan, Hakimah Osman, Supri A. Ghani,
author_sort	Muhammad Syazwan Fauzi,
title	Effect of sodium bicarbonate as blowing agent on production of epoxy shape memory foam using aqueous processing method
title_short	Effect of sodium bicarbonate as blowing agent on production of epoxy shape memory foam using aqueous processing method
title_full	Effect of sodium bicarbonate as blowing agent on production of epoxy shape memory foam using aqueous processing method
title_fullStr	Effect of sodium bicarbonate as blowing agent on production of epoxy shape memory foam using aqueous processing method
title_full_unstemmed	Effect of sodium bicarbonate as blowing agent on production of epoxy shape memory foam using aqueous processing method
title_sort	effect of sodium bicarbonate as blowing agent on production of epoxy shape memory foam using aqueous processing method
publisher	Universiti Kebangsaan Malaysia
publishDate	2015
url	http://journalarticle.ukm.my/8967/ http://journalarticle.ukm.my/8967/ http://journalarticle.ukm.my/8967/1/13_Muhammad_Syazwani.pdf
first_indexed	2023-09-18T19:53:36Z
last_indexed	2023-09-18T19:53:36Z
_version_	1777406382647017472

Effect of sodium bicarbonate as blowing agent on production of epoxy shape memory foam using aqueous processing method

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