Physical, mechanical and morphological studies of unsaturated polyester matrix and kenaf short fibres in composite system / Muhammad Mustakim Mohd Ghaztar

The fibres physical, mechanical and microstructural properties are crucial elements in the fabrication of biocomposites. The research was conducted based on lack of attention in materials preparation and fabrication processes especially, using short natural fibres and thermosetting matrix system. Th...

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Main Author:	Mohd Ghaztar, Muhammad Mustakim
Format:	Thesis
Language:	English
Published:	2017
Subjects:	Agricultural machinery Farm machinery
Online Access:	https://ir.uitm.edu.my/id/eprint/38054/1/38054.pdf
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id	my-uitm-ir.38054
record_format	uketd_dc
spelling	my-uitm-ir.380542023-01-31T03:35:29Z Physical, mechanical and morphological studies of unsaturated polyester matrix and kenaf short fibres in composite system / Muhammad Mustakim Mohd Ghaztar 2017 Mohd Ghaztar, Muhammad Mustakim Agricultural machinery. Farm machinery The fibres physical, mechanical and microstructural properties are crucial elements in the fabrication of biocomposites. The research was conducted based on lack of attention in materials preparation and fabrication processes especially, using short natural fibres and thermosetting matrix system. Thus, the objective of this research is to optimise the materials preparation and fabrication processes in an effort to identify the cause of biocomposite strength inconsistency. The research was carried out by fabricating the samples into two (2) types of fibres categories and fibres loadings and tested to determine its physical, mechanical and morphological properties. The samples were analysed microscopically before, and after the test to identify the cause of fibres-matrix de-bonding. The results showed that the density and hydrophilicity properties of the composite increases as the fibres content increases, however, the hardness properties decrease as the matrix content decreases. In addition, the treated samples gave the highest tensile (44.28 N/mm2) and flexural (49.57 N/mm2) strength, especially low A-fibres loading samples (46.89 N/mm). Moreover, in morphological analysis of samples fractured surface, showed identical fibres pre-damage imparted to the fibres pull-out. The application of chemical treatments coalition contributes well in the improvement of physical and mechanical properties of the composite. But, due to the less treated fibres surface contact, the damaged fibres retained its shapes. It reduced fibres-matrix interaction and creates stress discontinuity during testing process. As a conclusion, by better understanding the natural based composite behaviour, the suitable optimisation methods can be implemented. In the end, the cause of natural based composite strength inconsistency can be resolved in future. 2017 Thesis https://ir.uitm.edu.my/id/eprint/38054/ https://ir.uitm.edu.my/id/eprint/38054/1/38054.pdf text en public masters Universiti Teknologi MARA (UiTM) Faculty of Applied Sciences Romli, Ahmad Zafir
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Romli, Ahmad Zafir
topic	Agricultural machinery Farm machinery
spellingShingle	Agricultural machinery Farm machinery Mohd Ghaztar, Muhammad Mustakim Physical, mechanical and morphological studies of unsaturated polyester matrix and kenaf short fibres in composite system / Muhammad Mustakim Mohd Ghaztar
description	The fibres physical, mechanical and microstructural properties are crucial elements in the fabrication of biocomposites. The research was conducted based on lack of attention in materials preparation and fabrication processes especially, using short natural fibres and thermosetting matrix system. Thus, the objective of this research is to optimise the materials preparation and fabrication processes in an effort to identify the cause of biocomposite strength inconsistency. The research was carried out by fabricating the samples into two (2) types of fibres categories and fibres loadings and tested to determine its physical, mechanical and morphological properties. The samples were analysed microscopically before, and after the test to identify the cause of fibres-matrix de-bonding. The results showed that the density and hydrophilicity properties of the composite increases as the fibres content increases, however, the hardness properties decrease as the matrix content decreases. In addition, the treated samples gave the highest tensile (44.28 N/mm2) and flexural (49.57 N/mm2) strength, especially low A-fibres loading samples (46.89 N/mm). Moreover, in morphological analysis of samples fractured surface, showed identical fibres pre-damage imparted to the fibres pull-out. The application of chemical treatments coalition contributes well in the improvement of physical and mechanical properties of the composite. But, due to the less treated fibres surface contact, the damaged fibres retained its shapes. It reduced fibres-matrix interaction and creates stress discontinuity during testing process. As a conclusion, by better understanding the natural based composite behaviour, the suitable optimisation methods can be implemented. In the end, the cause of natural based composite strength inconsistency can be resolved in future.
format	Thesis
qualification_level	Master's degree
author	Mohd Ghaztar, Muhammad Mustakim
author_facet	Mohd Ghaztar, Muhammad Mustakim
author_sort	Mohd Ghaztar, Muhammad Mustakim
title	Physical, mechanical and morphological studies of unsaturated polyester matrix and kenaf short fibres in composite system / Muhammad Mustakim Mohd Ghaztar
title_short	Physical, mechanical and morphological studies of unsaturated polyester matrix and kenaf short fibres in composite system / Muhammad Mustakim Mohd Ghaztar
title_full	Physical, mechanical and morphological studies of unsaturated polyester matrix and kenaf short fibres in composite system / Muhammad Mustakim Mohd Ghaztar
title_fullStr	Physical, mechanical and morphological studies of unsaturated polyester matrix and kenaf short fibres in composite system / Muhammad Mustakim Mohd Ghaztar
title_full_unstemmed	Physical, mechanical and morphological studies of unsaturated polyester matrix and kenaf short fibres in composite system / Muhammad Mustakim Mohd Ghaztar
title_sort	physical, mechanical and morphological studies of unsaturated polyester matrix and kenaf short fibres in composite system / muhammad mustakim mohd ghaztar
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Applied Sciences
publishDate	2017
url	https://ir.uitm.edu.my/id/eprint/38054/1/38054.pdf
_version_	1783734454396649472

Physical, mechanical and morphological studies of unsaturated polyester matrix and kenaf short fibres in composite system / Muhammad Mustakim Mohd Ghaztar

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