Production of cellulose acetate from acacia mangium for wood coating lacquer

Cellulose acetate (CA) is a semi-synthetic industrial fiber that has a wide-range of application that includes materials for molded goods and fabrics, as well as filter membrane, cigarette tow, and coating. This study focuses on the production of coating from Acacia mangium-produced cellulose ace...

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Main Author:	Melissa Sharmah Gilbert @ Jesuet
Format:	Thesis
Language:	English
Published:	2016
Subjects:	SD Forestry
Online Access:	https://eprints.ums.edu.my/id/eprint/17509/1/Production%20of%20cellulose%20acetate%20from.pdf
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spelling	my-ums-ep.175092017-11-20T02:15:59Z Production of cellulose acetate from acacia mangium for wood coating lacquer 2016 Melissa Sharmah Gilbert @ Jesuet SD Forestry Cellulose acetate (CA) is a semi-synthetic industrial fiber that has a wide-range of application that includes materials for molded goods and fabrics, as well as filter membrane, cigarette tow, and coating. This study focuses on the production of coating from Acacia mangium-produced cellulose acetate. It covers the selection of the A. mangium fibers for development into the intermediate CA, followed by the optimum condition for the production of CA, and finally the performance of the end product of the Acacia mangium-based CA for wood coating. The fiber characteristic of the A. mangium wood and pulp fiber was determined and compared, where the pulp fiber was shown to potentially be a better material in the development of CA due to the higher cellulose composition of nearly 100% of percentage difference if compared to the wood fibers. Structurally, the pulp also displays better fibrillated structure and slightly higher derived value compared to the wood fiber for the fiber dimensions, with percentage difference not more than 10% for most. The selected form of pulp fiber underwent acetylation process through the reaction with acetic anhydride and acetic acid, where certain condition was manipulated, which includes the pretreatment process, amount of catalyst, pulp particle size, and reaction time to obtain the optimum condition. The result shows the pretreated A. mangium pulp fiber of 200-mesh size that underwent 36 hours of acetylation, with the highest catalyst usage of 0.10 ml earned the most ideal DS of 2.81, in the development of coatings. The formation of the acetate lacquer coating loosely follows the U.S. patent no. 2426379 that includes the fusion of melamine formaldehyde and ethyl acetate. The performance of the A. mangium cellulose acetate (AMCA) lacquer was evaluated and compared with a control lacquer that was produced from a commercial CA (CCA), based on the mechanical and physical performance. The AMCA lacquer is proven to be on par or better than that of CCA lacquer with better staining resistance and lower water absorption rate for the physical, and a higher durability for the impact, abrasion, and hardness test for the mechanical performance. These properties further justify the ergonomics of the most abundant organic compound on Earth, which is the cellulose, as an alternative for petroleum based products while indicating the feasibility of a wide-range unconventional product development of the A. mangium species as a whole. 2016 Thesis https://eprints.ums.edu.my/id/eprint/17509/ https://eprints.ums.edu.my/id/eprint/17509/1/Production%20of%20cellulose%20acetate%20from.pdf text en public masters Universiti Malaysia Sabah Faculty of Science and Natural Resources
institution	Universiti Malaysia Sabah
collection	UMS Institutional Repository
language	English
topic	SD Forestry
spellingShingle	SD Forestry Melissa Sharmah Gilbert @ Jesuet Production of cellulose acetate from acacia mangium for wood coating lacquer
description	Cellulose acetate (CA) is a semi-synthetic industrial fiber that has a wide-range of application that includes materials for molded goods and fabrics, as well as filter membrane, cigarette tow, and coating. This study focuses on the production of coating from Acacia mangium-produced cellulose acetate. It covers the selection of the A. mangium fibers for development into the intermediate CA, followed by the optimum condition for the production of CA, and finally the performance of the end product of the Acacia mangium-based CA for wood coating. The fiber characteristic of the A. mangium wood and pulp fiber was determined and compared, where the pulp fiber was shown to potentially be a better material in the development of CA due to the higher cellulose composition of nearly 100% of percentage difference if compared to the wood fibers. Structurally, the pulp also displays better fibrillated structure and slightly higher derived value compared to the wood fiber for the fiber dimensions, with percentage difference not more than 10% for most. The selected form of pulp fiber underwent acetylation process through the reaction with acetic anhydride and acetic acid, where certain condition was manipulated, which includes the pretreatment process, amount of catalyst, pulp particle size, and reaction time to obtain the optimum condition. The result shows the pretreated A. mangium pulp fiber of 200-mesh size that underwent 36 hours of acetylation, with the highest catalyst usage of 0.10 ml earned the most ideal DS of 2.81, in the development of coatings. The formation of the acetate lacquer coating loosely follows the U.S. patent no. 2426379 that includes the fusion of melamine formaldehyde and ethyl acetate. The performance of the A. mangium cellulose acetate (AMCA) lacquer was evaluated and compared with a control lacquer that was produced from a commercial CA (CCA), based on the mechanical and physical performance. The AMCA lacquer is proven to be on par or better than that of CCA lacquer with better staining resistance and lower water absorption rate for the physical, and a higher durability for the impact, abrasion, and hardness test for the mechanical performance. These properties further justify the ergonomics of the most abundant organic compound on Earth, which is the cellulose, as an alternative for petroleum based products while indicating the feasibility of a wide-range unconventional product development of the A. mangium species as a whole.
format	Thesis
qualification_level	Master's degree
author	Melissa Sharmah Gilbert @ Jesuet
author_facet	Melissa Sharmah Gilbert @ Jesuet
author_sort	Melissa Sharmah Gilbert @ Jesuet
title	Production of cellulose acetate from acacia mangium for wood coating lacquer
title_short	Production of cellulose acetate from acacia mangium for wood coating lacquer
title_full	Production of cellulose acetate from acacia mangium for wood coating lacquer
title_fullStr	Production of cellulose acetate from acacia mangium for wood coating lacquer
title_full_unstemmed	Production of cellulose acetate from acacia mangium for wood coating lacquer
title_sort	production of cellulose acetate from acacia mangium for wood coating lacquer
granting_institution	Universiti Malaysia Sabah
granting_department	Faculty of Science and Natural Resources
publishDate	2016
url	https://eprints.ums.edu.my/id/eprint/17509/1/Production%20of%20cellulose%20acetate%20from.pdf
_version_	1747836449688911872

Production of cellulose acetate from acacia mangium for wood coating lacquer

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