Effects of liquid natural rubber (LNR) on the mechanical properties of LNR toughened epoxy composite

The effects of liquid natural rubber (LNR) on the morphology and mechanical properties of rubber modified epoxy were investigated. Epoxy composites were prepared in four different compositions of LNR (3, 5, 7 and 9phr) by using twin screw extruder. The samples for tensile, fracture toughness and imp...

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Main Authors:	Lee, Yip Seng, Sahrim Hj. Ahmad, Rozaidi Rasid, Se Yong Eh Noum, Yew, Chin Hock, Mou’ad A. Tarawneh
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2011
Online Access:	http://journalarticle.ukm.my/2529/ http://journalarticle.ukm.my/2529/ http://journalarticle.ukm.my/2529/1/01_Lee_Yip_Seng.pdf

id	ukm-2529
recordtype	eprints
spelling	ukm-25292016-12-14T06:31:53Z http://journalarticle.ukm.my/2529/ Effects of liquid natural rubber (LNR) on the mechanical properties of LNR toughened epoxy composite Lee, Yip Seng Sahrim Hj. Ahmad, Rozaidi Rasid, Se Yong Eh Noum, Yew, Chin Hock Mou’ad A. Tarawneh, The effects of liquid natural rubber (LNR) on the morphology and mechanical properties of rubber modified epoxy were investigated. Epoxy composites were prepared in four different compositions of LNR (3, 5, 7 and 9phr) by using twin screw extruder. The samples for tensile, fracture toughness and impact tests were prepared according to ASTM D 638, D 5045 and D 256. The elastomeric nature of rubber can act as energy dissipating centre to cause the ductile fracture for the rubber modified epoxy. They was an obvious increment of fracture toughness where maximum value was observed with 3 phr LNR. A clear increment of impact strength at 3 phr LNR was observed, followed by a small increment at 5 phr and no further increment at 7 and 9 phr LNR. The tensile strength showed a similar trend with impact strength and Young’s modulus. SEM micrographs showed an increment of rubber particle size when the amount of LNR was increased and caused the mechanical properties to drop. Universiti Kebangsaan Malaysia 2011-07 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/2529/1/01_Lee_Yip_Seng.pdf Lee, Yip Seng and Sahrim Hj. Ahmad, Rozaidi Rasid, and Se Yong Eh Noum, and Yew, Chin Hock and Mou’ad A. Tarawneh, (2011) Effects of liquid natural rubber (LNR) on the mechanical properties of LNR toughened epoxy composite. Sains Malaysiana, 40 (7). pp. 679-683. 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 effects of liquid natural rubber (LNR) on the morphology and mechanical properties of rubber modified epoxy were investigated. Epoxy composites were prepared in four different compositions of LNR (3, 5, 7 and 9phr) by using twin screw extruder. The samples for tensile, fracture toughness and impact tests were prepared according to ASTM D 638, D 5045 and D 256. The elastomeric nature of rubber can act as energy dissipating centre to cause the ductile fracture for the rubber modified epoxy. They was an obvious increment of fracture toughness where maximum value was observed with 3 phr LNR. A clear increment of impact strength at 3 phr LNR was observed, followed by a small increment at 5 phr and no further increment at 7 and 9 phr LNR. The tensile strength showed a similar trend with impact strength and Young’s modulus. SEM micrographs showed an increment of rubber particle size when the amount of LNR was increased and caused the mechanical properties to drop.
format	Article
author	Lee, Yip Seng Sahrim Hj. Ahmad, Rozaidi Rasid, Se Yong Eh Noum, Yew, Chin Hock Mou’ad A. Tarawneh,
spellingShingle	Lee, Yip Seng Sahrim Hj. Ahmad, Rozaidi Rasid, Se Yong Eh Noum, Yew, Chin Hock Mou’ad A. Tarawneh, Effects of liquid natural rubber (LNR) on the mechanical properties of LNR toughened epoxy composite
author_facet	Lee, Yip Seng Sahrim Hj. Ahmad, Rozaidi Rasid, Se Yong Eh Noum, Yew, Chin Hock Mou’ad A. Tarawneh,
author_sort	Lee, Yip Seng
title	Effects of liquid natural rubber (LNR) on the mechanical properties of LNR toughened epoxy composite
title_short	Effects of liquid natural rubber (LNR) on the mechanical properties of LNR toughened epoxy composite
title_full	Effects of liquid natural rubber (LNR) on the mechanical properties of LNR toughened epoxy composite
title_fullStr	Effects of liquid natural rubber (LNR) on the mechanical properties of LNR toughened epoxy composite
title_full_unstemmed	Effects of liquid natural rubber (LNR) on the mechanical properties of LNR toughened epoxy composite
title_sort	effects of liquid natural rubber (lnr) on the mechanical properties of lnr toughened epoxy composite
publisher	Universiti Kebangsaan Malaysia
publishDate	2011
url	http://journalarticle.ukm.my/2529/ http://journalarticle.ukm.my/2529/ http://journalarticle.ukm.my/2529/1/01_Lee_Yip_Seng.pdf
first_indexed	2023-09-18T19:36:19Z
last_indexed	2023-09-18T19:36:19Z
_version_	1777405294692794368

Effects of liquid natural rubber (LNR) on the mechanical properties of LNR toughened epoxy composite

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