A review on citric acid as green modifying agent and binder for wood

Citric acid (CA) can be found naturally in fruits and vegetables, particularly citrus fruit. CA is widely used in many fields but its usage as a green modifying agent and binder for wood is barely addressed. Esterification is one of the most common chemical reactions applied in wood modification. CA...

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Main Authors: Lee, Seng Hua, Md Tahir, Paridah, Lum, Wei Chen, Tan, Li Peng, Bawon, Paiman, Park, Byung-Dae, Al Edrus, Syeed SaifulAzry Osman, Abdullah, Ummi Hani
Format: Article
Language:English
Published: Multidisciplinary Digital Publishing Institute 2020
Online Access:http://psasir.upm.edu.my/id/eprint/87666/1/ABSTRACT.pdf
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author Lee, Seng Hua
Md Tahir, Paridah
Lum, Wei Chen
Tan, Li Peng
Bawon, Paiman
Park, Byung-Dae
Al Edrus, Syeed SaifulAzry Osman
Abdullah, Ummi Hani
author_facet Lee, Seng Hua
Md Tahir, Paridah
Lum, Wei Chen
Tan, Li Peng
Bawon, Paiman
Park, Byung-Dae
Al Edrus, Syeed SaifulAzry Osman
Abdullah, Ummi Hani
author_sort Lee, Seng Hua
collection UPM
description Citric acid (CA) can be found naturally in fruits and vegetables, particularly citrus fruit. CA is widely used in many fields but its usage as a green modifying agent and binder for wood is barely addressed. Esterification is one of the most common chemical reactions applied in wood modification. CA contains three carboxyl groups, making it possible to attain at least two esterification reactions that are required for crosslinking when reacting with the hydroxyl groups of the cell wall polymers. In addition, the reaction could form ester linkages to bring adhesivity and good bonding characteristics, and therefore CA could be used as wood binder too. This paper presents a review concerning the usage of CA as a wood modifying agent and binder. For wood modification, the reaction mechanism between wood and CA and the pros and cons of using CA are discussed. CA and its combination with various reactants and their respective optimum parameters are also compiled in this paper. As for the major wood bonding component, the bonding mechanism and types of wood composites bonded with CA are presented. The best working conditions for the CA in the fabrication of wood-based panels are discussed. In addition, the environmental impacts and future outlook of CA-treated wood and bonded composite are also considered.
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spelling upm.eprints-876662022-07-06T03:32:11Z http://psasir.upm.edu.my/id/eprint/87666/ A review on citric acid as green modifying agent and binder for wood Lee, Seng Hua Md Tahir, Paridah Lum, Wei Chen Tan, Li Peng Bawon, Paiman Park, Byung-Dae Al Edrus, Syeed SaifulAzry Osman Abdullah, Ummi Hani Citric acid (CA) can be found naturally in fruits and vegetables, particularly citrus fruit. CA is widely used in many fields but its usage as a green modifying agent and binder for wood is barely addressed. Esterification is one of the most common chemical reactions applied in wood modification. CA contains three carboxyl groups, making it possible to attain at least two esterification reactions that are required for crosslinking when reacting with the hydroxyl groups of the cell wall polymers. In addition, the reaction could form ester linkages to bring adhesivity and good bonding characteristics, and therefore CA could be used as wood binder too. This paper presents a review concerning the usage of CA as a wood modifying agent and binder. For wood modification, the reaction mechanism between wood and CA and the pros and cons of using CA are discussed. CA and its combination with various reactants and their respective optimum parameters are also compiled in this paper. As for the major wood bonding component, the bonding mechanism and types of wood composites bonded with CA are presented. The best working conditions for the CA in the fabrication of wood-based panels are discussed. In addition, the environmental impacts and future outlook of CA-treated wood and bonded composite are also considered. Multidisciplinary Digital Publishing Institute 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/87666/1/ABSTRACT.pdf Lee, Seng Hua and Md Tahir, Paridah and Lum, Wei Chen and Tan, Li Peng and Bawon, Paiman and Park, Byung-Dae and Al Edrus, Syeed SaifulAzry Osman and Abdullah, Ummi Hani (2020) A review on citric acid as green modifying agent and binder for wood. Polymers, 12. art. no. 1692. pp. 1-21. ISSN 2073-4360 https://www.scilit.net/article/95da56c678feb9fdd56e08baaf2cd163 10.3390/polym12081692
spellingShingle Lee, Seng Hua
Md Tahir, Paridah
Lum, Wei Chen
Tan, Li Peng
Bawon, Paiman
Park, Byung-Dae
Al Edrus, Syeed SaifulAzry Osman
Abdullah, Ummi Hani
A review on citric acid as green modifying agent and binder for wood
title A review on citric acid as green modifying agent and binder for wood
title_full A review on citric acid as green modifying agent and binder for wood
title_fullStr A review on citric acid as green modifying agent and binder for wood
title_full_unstemmed A review on citric acid as green modifying agent and binder for wood
title_short A review on citric acid as green modifying agent and binder for wood
title_sort review on citric acid as green modifying agent and binder for wood
url http://psasir.upm.edu.my/id/eprint/87666/1/ABSTRACT.pdf
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