Effect of alkaline treatment on structural characterisation, thermal degradation and water absorption ability of coir fibre polymer composites

The alkaline treatment with 5 wt. % sodium hydroxide (NaOH) solution at room temperature for 24 and 48 h was performed on coir fibre. The structural characterisation, thermal degradation and water absorption ability of the untreated and NaOH-treated coir fibre polymer composites have been studied. S...

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Main Authors:	Yew, Been Seok, Martini Muhamad, Saiful Bahri Mohamed, Wee, Fwen Hoon
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:	http://journalarticle.ukm.my/13325/ http://journalarticle.ukm.my/13325/ http://journalarticle.ukm.my/13325/1/19%20Been%20Seok%20Yew.pdf

id	ukm-13325
recordtype	eprints
spelling	ukm-133252019-08-29T21:42:27Z http://journalarticle.ukm.my/13325/ Effect of alkaline treatment on structural characterisation, thermal degradation and water absorption ability of coir fibre polymer composites Yew, Been Seok Martini Muhamad, Saiful Bahri Mohamed, Wee, Fwen Hoon The alkaline treatment with 5 wt. % sodium hydroxide (NaOH) solution at room temperature for 24 and 48 h was performed on coir fibre. The structural characterisation, thermal degradation and water absorption ability of the untreated and NaOH-treated coir fibre polymer composites have been studied. Scanning electron microscope (SEM) images showed that coir fibres treated with NaOH have rough surface texture and the roughness of the fibre surface becomes significant as the duration of the NaOH treatment increased. Fourier transform infrared (FTIR) spectra confirmed that NaOH treatment removed hemicelluloses as evidenced by the absence of absorption bands at 1724.36 cm-1 and changes the absorption intensity at bands 1244.09 cm-1and 1249.87 cm-1 due to the loss of lignin. NaOH-treated coir fibre composites demonstrated better thermal stability at low temperature degradation. At high temperature, the thermal stability was reduced due to the decreased of residual lignin content. The water absorption of the NaOH-treated coir fibre composites was lower than untreated coir composite contributed by better interfacial adhesion between the NaOH-treated coir fibre to epoxy resin. Penerbit Universiti Kebangsaan Malaysia 2019-03 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/13325/1/19%20Been%20Seok%20Yew.pdf Yew, Been Seok and Martini Muhamad, and Saiful Bahri Mohamed, and Wee, Fwen Hoon (2019) Effect of alkaline treatment on structural characterisation, thermal degradation and water absorption ability of coir fibre polymer composites. Sains Malaysiana, 48 (3). pp. 653-659. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid48bil3_2019/KandunganJilid48Bil3_2019.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	The alkaline treatment with 5 wt. % sodium hydroxide (NaOH) solution at room temperature for 24 and 48 h was performed on coir fibre. The structural characterisation, thermal degradation and water absorption ability of the untreated and NaOH-treated coir fibre polymer composites have been studied. Scanning electron microscope (SEM) images showed that coir fibres treated with NaOH have rough surface texture and the roughness of the fibre surface becomes significant as the duration of the NaOH treatment increased. Fourier transform infrared (FTIR) spectra confirmed that NaOH treatment removed hemicelluloses as evidenced by the absence of absorption bands at 1724.36 cm-1 and changes the absorption intensity at bands 1244.09 cm-1and 1249.87 cm-1 due to the loss of lignin. NaOH-treated coir fibre composites demonstrated better thermal stability at low temperature degradation. At high temperature, the thermal stability was reduced due to the decreased of residual lignin content. The water absorption of the NaOH-treated coir fibre composites was lower than untreated coir composite contributed by better interfacial adhesion between the NaOH-treated coir fibre to epoxy resin.
format	Article
author	Yew, Been Seok Martini Muhamad, Saiful Bahri Mohamed, Wee, Fwen Hoon
spellingShingle	Yew, Been Seok Martini Muhamad, Saiful Bahri Mohamed, Wee, Fwen Hoon Effect of alkaline treatment on structural characterisation, thermal degradation and water absorption ability of coir fibre polymer composites
author_facet	Yew, Been Seok Martini Muhamad, Saiful Bahri Mohamed, Wee, Fwen Hoon
author_sort	Yew, Been Seok
title	Effect of alkaline treatment on structural characterisation, thermal degradation and water absorption ability of coir fibre polymer composites
title_short	Effect of alkaline treatment on structural characterisation, thermal degradation and water absorption ability of coir fibre polymer composites
title_full	Effect of alkaline treatment on structural characterisation, thermal degradation and water absorption ability of coir fibre polymer composites
title_fullStr	Effect of alkaline treatment on structural characterisation, thermal degradation and water absorption ability of coir fibre polymer composites
title_full_unstemmed	Effect of alkaline treatment on structural characterisation, thermal degradation and water absorption ability of coir fibre polymer composites
title_sort	effect of alkaline treatment on structural characterisation, thermal degradation and water absorption ability of coir fibre polymer composites
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2019
url	http://journalarticle.ukm.my/13325/ http://journalarticle.ukm.my/13325/ http://journalarticle.ukm.my/13325/1/19%20Been%20Seok%20Yew.pdf
first_indexed	2023-09-18T20:04:36Z
last_indexed	2023-09-18T20:04:36Z
_version_	1777407074179743744

Effect of alkaline treatment on structural characterisation, thermal degradation and water absorption ability of coir fibre polymer composites

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