Effects of silica on the formation of epoxidised natural rubber/polyvinyl chloride membrane

The presence of pores plays an important role for many membrane processes especially in ultrafiltration and microfiltration. Epoxidised natural rubber (ENR)/polyvinyl chloride (PVC) membranes filled with two types of silica fillers were prepared via simultaneous solvent exchange and evaporation of s...

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Main Authors:	Nazwa Jon, Ibrahim Abdullah, Rizafizah Othaman
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2013
Online Access:	http://journalarticle.ukm.my/6080/ http://journalarticle.ukm.my/6080/ http://journalarticle.ukm.my/6080/1/06_Nazwa.pdf

id	ukm-6080
recordtype	eprints
spelling	ukm-60802016-12-14T06:40:19Z http://journalarticle.ukm.my/6080/ Effects of silica on the formation of epoxidised natural rubber/polyvinyl chloride membrane Nazwa Jon, Ibrahim Abdullah, Rizafizah Othaman, The presence of pores plays an important role for many membrane processes especially in ultrafiltration and microfiltration. Epoxidised natural rubber (ENR)/polyvinyl chloride (PVC) membranes filled with two types of silica fillers were prepared via simultaneous solvent exchange and evaporation of solvent technique. Two types of silica, i.e. microsilica (microcrystalline silica powder) and nanosilica (generated from tetraethoxysilane (TEOS)) were used. The chemical composition, morphology and mechanical stability of the membranes were studied. Both types of silica showed good interaction with the membrane matrix. The formation of pores depended on the size of silica particles added. Microsilica produced large pores while in-situ generated nanosilica produced nanosized pores. The mechanical properties of membrane improved with the addition of silica. The tensile strength increased from 10.6 MPa to 17.8 MPa and 14.5 MPa for nanosilica and microsilica filled membrane while the tensile modulus increased from 1.6 MPa to 3.8 MPa and 3.4 MPa, respectively. Thus, both types of silica acted as a filler as well as pore forming agent for the ENR/PVC membrane. Universiti Kebangsaan Malaysia 2013-04 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6080/1/06_Nazwa.pdf Nazwa Jon, and Ibrahim Abdullah, and Rizafizah Othaman, (2013) Effects of silica on the formation of epoxidised natural rubber/polyvinyl chloride membrane. Sains Malaysiana, 42 (4). pp. 469-473. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	The presence of pores plays an important role for many membrane processes especially in ultrafiltration and microfiltration. Epoxidised natural rubber (ENR)/polyvinyl chloride (PVC) membranes filled with two types of silica fillers were prepared via simultaneous solvent exchange and evaporation of solvent technique. Two types of silica, i.e. microsilica (microcrystalline silica powder) and nanosilica (generated from tetraethoxysilane (TEOS)) were used. The chemical composition, morphology and mechanical stability of the membranes were studied. Both types of silica showed good interaction with the membrane matrix. The formation of pores depended on the size of silica particles added. Microsilica produced large pores while in-situ generated nanosilica produced nanosized pores. The mechanical properties of membrane improved with the addition of silica. The tensile strength increased from 10.6 MPa to 17.8 MPa and 14.5 MPa for nanosilica and microsilica filled membrane while the tensile modulus increased from 1.6 MPa to 3.8 MPa and 3.4 MPa, respectively. Thus, both types of silica acted as a filler as well as pore forming agent for the ENR/PVC membrane.
format	Article
author	Nazwa Jon, Ibrahim Abdullah, Rizafizah Othaman,
spellingShingle	Nazwa Jon, Ibrahim Abdullah, Rizafizah Othaman, Effects of silica on the formation of epoxidised natural rubber/polyvinyl chloride membrane
author_facet	Nazwa Jon, Ibrahim Abdullah, Rizafizah Othaman,
author_sort	Nazwa Jon,
title	Effects of silica on the formation of epoxidised natural rubber/polyvinyl chloride membrane
title_short	Effects of silica on the formation of epoxidised natural rubber/polyvinyl chloride membrane
title_full	Effects of silica on the formation of epoxidised natural rubber/polyvinyl chloride membrane
title_fullStr	Effects of silica on the formation of epoxidised natural rubber/polyvinyl chloride membrane
title_full_unstemmed	Effects of silica on the formation of epoxidised natural rubber/polyvinyl chloride membrane
title_sort	effects of silica on the formation of epoxidised natural rubber/polyvinyl chloride membrane
publisher	Universiti Kebangsaan Malaysia
publishDate	2013
url	http://journalarticle.ukm.my/6080/ http://journalarticle.ukm.my/6080/ http://journalarticle.ukm.my/6080/1/06_Nazwa.pdf
first_indexed	2023-09-18T19:45:56Z
last_indexed	2023-09-18T19:45:56Z
_version_	1777405899361484800

Effects of silica on the formation of epoxidised natural rubber/polyvinyl chloride membrane

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