Combustion of waterborne intumescent flame-retardant coatings with hybrid industrial filler and biofiller

Md Nasir, Khairunisa and Ramli Sulong, Nor Hafizah and Fateh, Talal and Johan, Mohd Rafie and Afifi, Amalina Muhammad (2019) Combustion of waterborne intumescent flame-retardant coatings with hybrid industrial filler and biofiller. Journal of Coatings Technology and Research, 16 (2). pp. 543-553. ISSN 1547-0091, DOI

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This paper presents the combustibility and thermal stability of an intumescent coating system, which incorporates rice husk ash (RHA) and eggshell as abundant by-products, with two other industrial fillers, namely TiO 2 and Al(OH) 3 . Evaluation was performed using cone calorimeter test at 50 kW m −2 and TGA. Experimental results indicated the influence of fillers on the combustibility properties of coating samples and the decomposition rate of coating materials. The TGA results demonstrated that the addition of RHA and eggshell results in the excess residue weight of more than 35% of the total weight loss. The cone calorimeter test results revealed the coating, which consists of TiO 2 and RHA, exerts no effect on fire growth because no ignition is observed. The results proved a remarkable fire resistance of waterborne intumescent coating with the addition of RHA and TiO 2 which (1) reduces the total heat release rate (HRR) and heat of combustion; (2) increases the carbon monoxide, carbon dioxide, and smoke yields; and (3) releases the lowest amount of gaseous oxygen released. Consequently, the appropriate combination of hybrid industrial fillers and biofillers has significant influence on the combustibility performance and decomposition of the intumescent coating system. © 2018, American Coatings Association.

Item Type: Article
Funders: MyPhD (MoHE, Malaysia), University of Malaya, PPP Grant PG177-2015B, Fundamental Research Grant Scheme (FRGS) Grant FP050-2017A
Uncontrolled Keywords: Combustible; Cone calorimeter; Filler; Flame retardant; Intumescent coatings; TGA
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Mr. Mohd Safri
Date Deposited: 17 Mar 2020 04:08
Last Modified: 17 Mar 2020 04:08

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