Unsaturated polyester composites filled with untreated and surface treatment sugarcane bagasse by hot press technique

The aim of this research is the improvement of the mechanical properties of natural fiber reinforced thermoset, as a result of optimization of the properties of sugarcane bagasse fibers by the use of NaOH treatment process. Tert-butyl perbenzoate was used as catalyst at elevated temperature for effi...

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Main Author:	Muhammad Salihin, Zakaria
Format:	Thesis
Language:	English
Subjects:	NaOH treatment Tert-butyl perbenzoate Bagasse fiber composites Sugarcane bagasse Polyester composites Natural fiber
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12856/1/p.%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12856/2/Full%20Text.pdf
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record_format	uketd_dc
spelling	my-unimap-128562011-06-28T14:43:44Z Unsaturated polyester composites filled with untreated and surface treatment sugarcane bagasse by hot press technique Muhammad Salihin, Zakaria The aim of this research is the improvement of the mechanical properties of natural fiber reinforced thermoset, as a result of optimization of the properties of sugarcane bagasse fibers by the use of NaOH treatment process. Tert-butyl perbenzoate was used as catalyst at elevated temperature for efficient processing of polyester composites. Sugarcane bagasse fibers were alkalized with 1, 3 and 5% NaOH solution, combined with four different fiber loading formulation, and hot-pressed to form natural fibers composites. The flexural modulus and strength of bagasse fiber composites alkalized with 3% NaOH solution gave the highest value and the untreated bagasse fiber gave the lowest. The same trend was obtained for the tensile modulus and strength as expected. However, by increased the NaOH solution, the mechanical properties decreased as a result of fibrillation lead to uneffective stress transfer occurred. Meanwhile, the break elongation of composites was decreased due to the improved fiber-matrix adhesion (to give more stiffness to the composites). Dynamic mechanical analysis (DMA) showed that with 3% NaOH solution treatment, bagasse fiber composites gave the highest storage modulus (E′) values and the lowest tan δ values. SEM observations on the fracture surface of composites showed that the surface modification of the fiber occurred and improved fiber-matrix adhesion. A water absorption test also showed that with 3% NaOH solution treatment, bagasse fiber composites gave higher bonding and adhesion compared to all another bagasse fiber composites. Universiti Malaysia Perlis 2009 Thesis en http://dspace.unimap.edu.my/123456789/12856 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12856/3/license.txt b1ac16c6280252425970ec1ee2c5e8ce http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12856/1/p.%201-24.pdf 8529d490c652b1a9b1b42163463e37cd http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12856/2/Full%20Text.pdf 92b0692b77970a5e7d5c550cb60478f1 NaOH treatment Tert-butyl perbenzoate Bagasse fiber composites Sugarcane bagasse Polyester composites Natural fiber School of Materials Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
topic	NaOH treatment Tert-butyl perbenzoate Bagasse fiber composites Sugarcane bagasse Polyester composites Natural fiber
spellingShingle	NaOH treatment Tert-butyl perbenzoate Bagasse fiber composites Sugarcane bagasse Polyester composites Natural fiber Muhammad Salihin, Zakaria Unsaturated polyester composites filled with untreated and surface treatment sugarcane bagasse by hot press technique
description	The aim of this research is the improvement of the mechanical properties of natural fiber reinforced thermoset, as a result of optimization of the properties of sugarcane bagasse fibers by the use of NaOH treatment process. Tert-butyl perbenzoate was used as catalyst at elevated temperature for efficient processing of polyester composites. Sugarcane bagasse fibers were alkalized with 1, 3 and 5% NaOH solution, combined with four different fiber loading formulation, and hot-pressed to form natural fibers composites. The flexural modulus and strength of bagasse fiber composites alkalized with 3% NaOH solution gave the highest value and the untreated bagasse fiber gave the lowest. The same trend was obtained for the tensile modulus and strength as expected. However, by increased the NaOH solution, the mechanical properties decreased as a result of fibrillation lead to uneffective stress transfer occurred. Meanwhile, the break elongation of composites was decreased due to the improved fiber-matrix adhesion (to give more stiffness to the composites). Dynamic mechanical analysis (DMA) showed that with 3% NaOH solution treatment, bagasse fiber composites gave the highest storage modulus (E′) values and the lowest tan δ values. SEM observations on the fracture surface of composites showed that the surface modification of the fiber occurred and improved fiber-matrix adhesion. A water absorption test also showed that with 3% NaOH solution treatment, bagasse fiber composites gave higher bonding and adhesion compared to all another bagasse fiber composites.
format	Thesis
author	Muhammad Salihin, Zakaria
author_facet	Muhammad Salihin, Zakaria
author_sort	Muhammad Salihin, Zakaria
title	Unsaturated polyester composites filled with untreated and surface treatment sugarcane bagasse by hot press technique
title_short	Unsaturated polyester composites filled with untreated and surface treatment sugarcane bagasse by hot press technique
title_full	Unsaturated polyester composites filled with untreated and surface treatment sugarcane bagasse by hot press technique
title_fullStr	Unsaturated polyester composites filled with untreated and surface treatment sugarcane bagasse by hot press technique
title_full_unstemmed	Unsaturated polyester composites filled with untreated and surface treatment sugarcane bagasse by hot press technique
title_sort	unsaturated polyester composites filled with untreated and surface treatment sugarcane bagasse by hot press technique
granting_institution	Universiti Malaysia Perlis
granting_department	School of Materials Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12856/1/p.%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12856/2/Full%20Text.pdf
_version_	1747836763912536064

Unsaturated polyester composites filled with untreated and surface treatment sugarcane bagasse by hot press technique

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