Influences of flame-retardant fillers on fire protection and mechanical properties of intumescent coatings

Yew, M.C. and Sulong, N.H.R. and Yew, M.K. and Amalina, M.A. and Johan, M.R. (2015) Influences of flame-retardant fillers on fire protection and mechanical properties of intumescent coatings. Progress in Organic Coatings, 78. pp. 59-66. ISSN 0300-9440, DOI https://doi.org/10.1016/j.porgcoat.2014.10.006.

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Abstract

A combination of acrylic binder and flame-retardant ingredients was used to synthesize the solvent-borne intumescent coatings designed for steel substrates. The influences of individual and various combinations of flame-retardant fillers on the fire protection and mechanical properties of the coatings were characterized by using Bunsen burner, thermogravimetric analysis, limiting oxygen index, field emission scanning electron microscopy, freeze thaw cycles, static immersion and pull-off type equipment. It was found that the combination of aluminium hydroxide (Al(OH)(3)) and titanium dioxide (TiO2) has significantly improved the fire protection, thermal stability and water resistance of the coating. This formulation had an LOI value of 34, which indicated good flammability resistance of the coating. The adhesion strength tests showed that the coating added with magnesium hydroxide (Mg(OH)(2)) exhibited maximum bonding strength to the metal surface due to its effective interface adhesion. Hence, the findings from this study revealed that the selection of appropriate combinations of flame-retardant fillers strongly influenced the physical and chemical properties of the coatings. (C) 2014 Elsevier B.V. All rights reserved.

Item Type:	Article
Funders:	Fundamental Research Grant Scheme FRGS-FP047-2013B , Prototype Research Grant Scheme PRGS-PR001/2013A , High Impact Research Grant, University of Malaya UM.C/625/1/HIR/MOHE/ENG/12
Additional Information:	Ay7qk Times Cited:0 Cited References Count:33
Uncontrolled Keywords:	Acrylic resin, intumescent coating, flame-retardant additives, steel, magnesium-hydroxide, steel, eva, performance, resistance, behavior, resin,
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering
Depositing User:	Mr Jenal S
Date Deposited:	04 Aug 2015 02:13
Last Modified:	04 Aug 2015 02:13
URI:	http://eprints.um.edu.my/id/eprint/13854

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