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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
https://eprints.ums.edu.my/id/eprint/17509/
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spelling my.ums.eprints.175092017-11-20T02:15:59Z https://eprints.ums.edu.my/id/eprint/17509/ Production of cellulose acetate from acacia mangium for wood coating lacquer 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 NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/17509/1/Production%20of%20cellulose%20acetate%20from.pdf Melissa Sharmah Gilbert @ Jesuet (2016) Production of cellulose acetate from acacia mangium for wood coating lacquer. Masters thesis, Universiti Malaysia Sabah.
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
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
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
publishDate 2016
url https://eprints.ums.edu.my/id/eprint/17509/1/Production%20of%20cellulose%20acetate%20from.pdf
https://eprints.ums.edu.my/id/eprint/17509/
_version_ 1760229323646697472
score 13.211869

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