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Influence of alkali treatment on the interfacial properties of bamboo/polyester composites

Background: Natural fibres are getting substantial attention as reinforcement in polymer composites. However, they are commonly recognised to have poor compatibility with polymers. Hence, it is important to enhance the interfacial bonding of natural fibres. Recent patents have highlighted several al...

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Main Authors: Wong, K. J., Khoo, S. J., Low, K. O.
Format: Article
Published: Bentham Science Publishers B.V. 2016
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TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/72276/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84987641968&doi=10.2174%2f2212797609666160728163654&partnerID=40&md5=917ce299cc525146504b408bad50534b
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spelling my.utm.722762017-11-16T05:14:24Z http://eprints.utm.my/id/eprint/72276/ Influence of alkali treatment on the interfacial properties of bamboo/polyester composites Wong, K. J. Khoo, S. J. Low, K. O. TJ Mechanical engineering and machinery Background: Natural fibres are getting substantial attention as reinforcement in polymer composites. However, they are commonly recognised to have poor compatibility with polymers. Hence, it is important to enhance the interfacial bonding of natural fibres. Recent patents have highlighted several alternatives to improve the interfacial characteristics. Objective: In this study, the interfacial shear strength of untreated and 10wt% sodium hydroxide (NaOH) treated bamboo fibre reinforced polyester composites was investigated. Method: The bamboo fibre length was fixed at 7mm in both cases. The interfacial shear strength was measured through single fibre pull-out test (SFPT) and subsequently analysed using Weibull distribution plot. Results were also compared with the data from literature. Finally, scanning electron micrographs (SEM) were captured to analyse the debonded surfaces of both matrix and fibre. Results: Results showed that the interfacial shear strength of the treated fibre was improved by almost three fold higher than the untreated fibre. In addition, Weibull analysis revealed that the Weibull moduli were similar for both untreated and treated fibres. This suggested that surface impurities were formed on the treated fibre due to the damage induced by sodium hydroxide. Furthermore, scanning electron micrographs showed that alkalisation has modified the fibre surface morphology and improved the overall surface quality for better interfacial bonding. Conclusion: In conclusion, alkali treatment is a potential method to improve the interfacial characteristics of bamboo fibre in unsaturated polyester. Recent patent suggested that coating with bacterial cellulose is a green technique for better interfacial bonding behaviour. Bentham Science Publishers B.V. 2016 Article PeerReviewed Wong, K. J. and Khoo, S. J. and Low, K. O. (2016) Influence of alkali treatment on the interfacial properties of bamboo/polyester composites. Recent Patents on Mechanical Engineering, 9 (3). pp. 247-254. ISSN 1874-477X https://www.scopus.com/inward/record.uri?eid=2-s2.0-84987641968&doi=10.2174%2f2212797609666160728163654&partnerID=40&md5=917ce299cc525146504b408bad50534b
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Wong, K. J.
Khoo, S. J.
Low, K. O.
Influence of alkali treatment on the interfacial properties of bamboo/polyester composites
description Background: Natural fibres are getting substantial attention as reinforcement in polymer composites. However, they are commonly recognised to have poor compatibility with polymers. Hence, it is important to enhance the interfacial bonding of natural fibres. Recent patents have highlighted several alternatives to improve the interfacial characteristics. Objective: In this study, the interfacial shear strength of untreated and 10wt% sodium hydroxide (NaOH) treated bamboo fibre reinforced polyester composites was investigated. Method: The bamboo fibre length was fixed at 7mm in both cases. The interfacial shear strength was measured through single fibre pull-out test (SFPT) and subsequently analysed using Weibull distribution plot. Results were also compared with the data from literature. Finally, scanning electron micrographs (SEM) were captured to analyse the debonded surfaces of both matrix and fibre. Results: Results showed that the interfacial shear strength of the treated fibre was improved by almost three fold higher than the untreated fibre. In addition, Weibull analysis revealed that the Weibull moduli were similar for both untreated and treated fibres. This suggested that surface impurities were formed on the treated fibre due to the damage induced by sodium hydroxide. Furthermore, scanning electron micrographs showed that alkalisation has modified the fibre surface morphology and improved the overall surface quality for better interfacial bonding. Conclusion: In conclusion, alkali treatment is a potential method to improve the interfacial characteristics of bamboo fibre in unsaturated polyester. Recent patent suggested that coating with bacterial cellulose is a green technique for better interfacial bonding behaviour.
format Article
author Wong, K. J.
Khoo, S. J.
Low, K. O.
author_facet Wong, K. J.
Khoo, S. J.
Low, K. O.
author_sort Wong, K. J.
title Influence of alkali treatment on the interfacial properties of bamboo/polyester composites
title_short Influence of alkali treatment on the interfacial properties of bamboo/polyester composites
title_full Influence of alkali treatment on the interfacial properties of bamboo/polyester composites
title_fullStr Influence of alkali treatment on the interfacial properties of bamboo/polyester composites
title_full_unstemmed Influence of alkali treatment on the interfacial properties of bamboo/polyester composites
title_sort influence of alkali treatment on the interfacial properties of bamboo/polyester composites
publisher Bentham Science Publishers B.V.
publishDate 2016
url http://eprints.utm.my/id/eprint/72276/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84987641968&doi=10.2174%2f2212797609666160728163654&partnerID=40&md5=917ce299cc525146504b408bad50534b
_version_ 1643656398471430144
score 13.211869

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