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
Published: Universiti Malaysia Perlis 2011
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Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/12856
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Institution: Universiti Malaysia Perlis
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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 NaOH treatment Tert-butyl perbenzoate Bagasse fiber composites Sugarcane bagasse Polyester composites Natural fiber 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. 2011-06-28T14:43:44Z 2011-06-28T14:43:44Z 2009 Thesis http://hdl.handle.net/123456789/12856 en Universiti Malaysia Perlis School of Materials Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
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
publisher Universiti Malaysia Perlis
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/12856
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