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Development of coating materials from liquid wax esters for wood top-based coating

Abdul Rahman, Mohd Basyaruddin and Abdul Ghani, Noraini and Nik Salleh, Nik Ghazali and Basri, Mahiran and Raja Abdul Rahman, Raja Noor Zaliha and Salleh, Abu Bakar (2011) Development of coating materials from liquid wax esters for wood top-based coating. Journal of Coating Technology and Research, 8 (2). pp. 229-236. ISSN 1547-0091; ESSN: 1935-3804

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Of late, UV-curable products are gaining attention in the wood industry because of the effectiveness and efficiency of this method. UV-curable surface coatings are widely used because of their excellent properties and because they are environmentally friendly products. In this study, immobilized Candida antarctica lipase B was used to catalyze formation of liquid wax esters, such as adipate esters, via a solvent-free process. The adipate esters formed were then used as UV-curable reactants in the wood coating formulations, consisting of epoxy acrylate, additives, and a photoinitiator. The performance of the products was evaluated by coating them onto glass tiles (using gel content, hardness, and scratch resistance tests) and wood panels (using adhesion, impact, and heat resistance tests). The coated film from this formulation performed well during the evaluation tests. The gel content exhibited more than 90% polymerization, while the pendulum hardness gave a value of 55.25%. Both analyses were significant in determining the effect of irradiation cycles. A scratch test was also carried out to verify the resistance of the coating. The maximum weight load which can be resisted by the wax esters formulation is 4.5 N.

Item Type:Article
Keyword:Adipate esters; Liquid wax esters; Coating formulation; Radiation curing; Wood coating
Faculty or Institute:Faculty of Science
Institute of Bioscience
Publisher:ACA and OCCA
DOI Number:10.1007/s11998-010-9291-0
ID Code:25056
Deposited By: Nur Farahin Ramli
Deposited On:30 Jul 2013 16:28
Last Modified:27 Sep 2016 12:53

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