Fabrication, characterisation and properties of polysiloxane rice husk silica composites

The polysiloxane silica composites were fabricated and characterised as to elucidate the feasibility of casting (CA) and compression (CO) method. Besides, the contribution of rice husk silica (RHA SiO2) and crystalline silica (CS) in enhancing the composites properties were also investigated. Moreov...

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Main Author:	Azmi, Mohd Azham
Format:	Thesis
Language:	English English English
Published:	2018
Subjects:	TA401-492 Materials of engineering and construction Mechanics of materials
Online Access:	http://eprints.uthm.edu.my/227/1/24p%20MOHD%20AZHAM%20AZMI.pdf http://eprints.uthm.edu.my/227/2/MOHD%20AZHAM%20AZMI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/227/3/MOHD%20AZHAM%20AZMI%20WATERMARK.pdf
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spelling	my-uthm-ep.2272021-07-13T01:30:30Z Fabrication, characterisation and properties of polysiloxane rice husk silica composites 2018 Azmi, Mohd Azham TA401-492 Materials of engineering and construction. Mechanics of materials The polysiloxane silica composites were fabricated and characterised as to elucidate the feasibility of casting (CA) and compression (CO) method. Besides, the contribution of rice husk silica (RHA SiO2) and crystalline silica (CS) in enhancing the composites properties were also investigated. Moreover, fabricated composites were applied in hand grinder as a vibration damper and the performance had been analysed. The important issues covered in this study were the contribution of RHA SiO2 instead of using CS as a filler and the investigation of most ideal parameter in improving thermal, physical, mechanical and vibration properties of composites. The polysiloxane composites were analysed and compared with various parameters i.e; composition of fillers (2wt% to 12wt%) and curing temperatures (room temperature (RT), 65 and 100˚C). Addition of 10wt% RHA SiO2 had found to contribute better performance compared to CS addition, accredited to RHA SiO2 density and surface morphology. As for the fabrication effects, CO method was found to offer composites with better tensile and vibration properties. However, as for the thermal behavior, CA method yielded composites with better thermal stability due to better filler distribution on surface of the composites. On the other hand, the increment of curing temperature does not show significant effect in improving thermal properties as the thermal stability were decreased due to interferences of curing network stability. However, the polysiloxane composites cured at 65˚C and 100˚C were found to offer better tensile and vibration properties. Throughout the observations, the maximum perfomance of thermal, tensile and vibration behavior for polysiloxane composites were achieved by addition of 10wt% RHA SiO2, fabricated using CO method and cured at 100˚C. 2018 Thesis http://eprints.uthm.edu.my/227/ http://eprints.uthm.edu.my/227/1/24p%20MOHD%20AZHAM%20AZMI.pdf text en public http://eprints.uthm.edu.my/227/2/MOHD%20AZHAM%20AZMI%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/227/3/MOHD%20AZHAM%20AZMI%20WATERMARK.pdf text en validuser phd doctoral Universiti Tun Hussein Onn Malaysia Faculty of Mechanical and Manufacturing Engineering
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TA401-492 Materials of engineering and construction Mechanics of materials
spellingShingle	TA401-492 Materials of engineering and construction Mechanics of materials Azmi, Mohd Azham Fabrication, characterisation and properties of polysiloxane rice husk silica composites
description	The polysiloxane silica composites were fabricated and characterised as to elucidate the feasibility of casting (CA) and compression (CO) method. Besides, the contribution of rice husk silica (RHA SiO2) and crystalline silica (CS) in enhancing the composites properties were also investigated. Moreover, fabricated composites were applied in hand grinder as a vibration damper and the performance had been analysed. The important issues covered in this study were the contribution of RHA SiO2 instead of using CS as a filler and the investigation of most ideal parameter in improving thermal, physical, mechanical and vibration properties of composites. The polysiloxane composites were analysed and compared with various parameters i.e; composition of fillers (2wt% to 12wt%) and curing temperatures (room temperature (RT), 65 and 100˚C). Addition of 10wt% RHA SiO2 had found to contribute better performance compared to CS addition, accredited to RHA SiO2 density and surface morphology. As for the fabrication effects, CO method was found to offer composites with better tensile and vibration properties. However, as for the thermal behavior, CA method yielded composites with better thermal stability due to better filler distribution on surface of the composites. On the other hand, the increment of curing temperature does not show significant effect in improving thermal properties as the thermal stability were decreased due to interferences of curing network stability. However, the polysiloxane composites cured at 65˚C and 100˚C were found to offer better tensile and vibration properties. Throughout the observations, the maximum perfomance of thermal, tensile and vibration behavior for polysiloxane composites were achieved by addition of 10wt% RHA SiO2, fabricated using CO method and cured at 100˚C.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Azmi, Mohd Azham
author_facet	Azmi, Mohd Azham
author_sort	Azmi, Mohd Azham
title	Fabrication, characterisation and properties of polysiloxane rice husk silica composites
title_short	Fabrication, characterisation and properties of polysiloxane rice husk silica composites
title_full	Fabrication, characterisation and properties of polysiloxane rice husk silica composites
title_fullStr	Fabrication, characterisation and properties of polysiloxane rice husk silica composites
title_full_unstemmed	Fabrication, characterisation and properties of polysiloxane rice husk silica composites
title_sort	fabrication, characterisation and properties of polysiloxane rice husk silica composites
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Mechanical and Manufacturing Engineering
publishDate	2018
url	http://eprints.uthm.edu.my/227/1/24p%20MOHD%20AZHAM%20AZMI.pdf http://eprints.uthm.edu.my/227/2/MOHD%20AZHAM%20AZMI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/227/3/MOHD%20AZHAM%20AZMI%20WATERMARK.pdf
_version_	1747830559010193408

Fabrication, characterisation and properties of polysiloxane rice husk silica composites

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