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Physico-mechanical and morphological properties of rice husk-coconut husk fiber reinforced epoxy composites

In the recent years, many researches focus on “waste to wealth” concept, where agro-waste is converted into various valuable products especially on natural fiber polymeric composites. Selected fibers for this research were rice husk (RH) and coconut husk (CH). This resear...

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Main Authors: Lai, Josephine Chang Hui, Fatin Fakhira, Azman, Rubiyah, Baini
Format: Article
Language:English
Published: UTM Press. 2020
Subjects:
T Technology (General)
TA Engineering (General). Civil engineering (General)
Online Access:http://ir.unimas.my/id/eprint/31321/1/Josephine.pdf
http://ir.unimas.my/id/eprint/31321/
https://mjfas.utm.my/index.php/mjfas/article/view/1945
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spelling my.unimas.ir.313212021-03-31T07:57:13Z http://ir.unimas.my/id/eprint/31321/ Physico-mechanical and morphological properties of rice husk-coconut husk fiber reinforced epoxy composites Lai, Josephine Chang Hui Fatin Fakhira, Azman Rubiyah, Baini T Technology (General) TA Engineering (General). Civil engineering (General) In the recent years, many researches focus on “waste to wealth” concept, where agro-waste is converted into various valuable products especially on natural fiber polymeric composites. Selected fibers for this research were rice husk (RH) and coconut husk (CH). This research focused on the property enhancement of RH-CH fiber reinforced epoxy composites and comparison RH reinforced epoxy composites, CH reinforced epoxy composites, and RH-CH reinforced epoxy composites. RH-CH reinforced epoxy composites were well-fabricated by mixing epoxy resin and different ratios of two types natural fibers via compression molding and stir casting methods. All the fabricated RH-CH reinforced epoxy composites were characterized using Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Vickers Hardness Test (VHT), and tensile test (TT). FTIR results showed that 10wt% RH-CH reinforced epoxy composites created the strongest covalent bonding between cellulose inside RH-CH fiber and epoxide group compared to RH reinforced epoxy composites and CH reinforced epoxy composites. The combination of RH and CH fiber with the introduction of epoxy resin reduced the hydroxyl groups compared to either RH or CH fiber composites, respectively. This proved that mixture of RH and CH with epoxy matrix improved the properties of pure RH and CH and thus, better composites were fabricated. SEM images of 10wt% RH-CH reinforced epoxy composites showed better dispersion of RH-CH fiber within polymer matrix compared to RH reinforced epoxy composites and CH reinforced epoxy composites under the magnification of 2000. Both RH reinforced epoxy composites and CH reinforced epoxy composites showed porosity within the matrix. VHT showed that 10wt% RH-CH reinforced epoxy composites showed the smallest indentation value compared to RH reinforced epoxy composites and CH reinforced epoxy composites due to the highest interfacial adhesion between matrix and filler, which was proven by the SEM images. Tensile test of 10wt% RH-CH reinforced epoxy composites showed the highest tensile modulus with value of 2.6MPa. RH-CH reinforced epoxy composites showed higher tensile strength and modulus compared to RH and CH reinforced epoxy composites. Overall, it could be concluded that 10wt% RH-CH reinforced epoxy composites performed the best in terms of physical, mechanical, and morphological perspective than RH reinforced epoxy composites and CH reinforced epoxy composites. This proved that RH and CH could be well-introduced as reinforcing filler in epoxy matrix to fabricate better composites for structural application. UTM Press. 2020 Article PeerReviewed text en http://ir.unimas.my/id/eprint/31321/1/Josephine.pdf Lai, Josephine Chang Hui and Fatin Fakhira, Azman and Rubiyah, Baini (2020) Physico-mechanical and morphological properties of rice husk-coconut husk fiber reinforced epoxy composites. Malaysian Journal of Fundamental and Applied Sciences, 16 (4). pp. 437-443. ISSN 2289-599X https://mjfas.utm.my/index.php/mjfas/article/view/1945
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
Lai, Josephine Chang Hui
Fatin Fakhira, Azman
Rubiyah, Baini
Physico-mechanical and morphological properties of rice husk-coconut husk fiber reinforced epoxy composites
description In the recent years, many researches focus on “waste to wealth” concept, where agro-waste is converted into various valuable products especially on natural fiber polymeric composites. Selected fibers for this research were rice husk (RH) and coconut husk (CH). This research focused on the property enhancement of RH-CH fiber reinforced epoxy composites and comparison RH reinforced epoxy composites, CH reinforced epoxy composites, and RH-CH reinforced epoxy composites. RH-CH reinforced epoxy composites were well-fabricated by mixing epoxy resin and different ratios of two types natural fibers via compression molding and stir casting methods. All the fabricated RH-CH reinforced epoxy composites were characterized using Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Vickers Hardness Test (VHT), and tensile test (TT). FTIR results showed that 10wt% RH-CH reinforced epoxy composites created the strongest covalent bonding between cellulose inside RH-CH fiber and epoxide group compared to RH reinforced epoxy composites and CH reinforced epoxy composites. The combination of RH and CH fiber with the introduction of epoxy resin reduced the hydroxyl groups compared to either RH or CH fiber composites, respectively. This proved that mixture of RH and CH with epoxy matrix improved the properties of pure RH and CH and thus, better composites were fabricated. SEM images of 10wt% RH-CH reinforced epoxy composites showed better dispersion of RH-CH fiber within polymer matrix compared to RH reinforced epoxy composites and CH reinforced epoxy composites under the magnification of 2000. Both RH reinforced epoxy composites and CH reinforced epoxy composites showed porosity within the matrix. VHT showed that 10wt% RH-CH reinforced epoxy composites showed the smallest indentation value compared to RH reinforced epoxy composites and CH reinforced epoxy composites due to the highest interfacial adhesion between matrix and filler, which was proven by the SEM images. Tensile test of 10wt% RH-CH reinforced epoxy composites showed the highest tensile modulus with value of 2.6MPa. RH-CH reinforced epoxy composites showed higher tensile strength and modulus compared to RH and CH reinforced epoxy composites. Overall, it could be concluded that 10wt% RH-CH reinforced epoxy composites performed the best in terms of physical, mechanical, and morphological perspective than RH reinforced epoxy composites and CH reinforced epoxy composites. This proved that RH and CH could be well-introduced as reinforcing filler in epoxy matrix to fabricate better composites for structural application.
format Article
author Lai, Josephine Chang Hui
Fatin Fakhira, Azman
Rubiyah, Baini
author_facet Lai, Josephine Chang Hui
Fatin Fakhira, Azman
Rubiyah, Baini
author_sort Lai, Josephine Chang Hui
title Physico-mechanical and morphological properties of rice husk-coconut husk fiber reinforced epoxy composites
title_short Physico-mechanical and morphological properties of rice husk-coconut husk fiber reinforced epoxy composites
title_full Physico-mechanical and morphological properties of rice husk-coconut husk fiber reinforced epoxy composites
title_fullStr Physico-mechanical and morphological properties of rice husk-coconut husk fiber reinforced epoxy composites
title_full_unstemmed Physico-mechanical and morphological properties of rice husk-coconut husk fiber reinforced epoxy composites
title_sort physico-mechanical and morphological properties of rice husk-coconut husk fiber reinforced epoxy composites
publisher UTM Press.
publishDate 2020
url http://ir.unimas.my/id/eprint/31321/1/Josephine.pdf
http://ir.unimas.my/id/eprint/31321/
https://mjfas.utm.my/index.php/mjfas/article/view/1945
_version_ 1696979520002719744
score 13.211869

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