Synergistic effects of mica and wollastonite fillers on thermal performance of intumescent fire retardant coating

Journal Article · Wed Jul 22 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4919184· OSTI ID:22488619

Ahmad, Faiz; Megat-Yusoff, Puteri S. M.; Aziz, Hammad ^[1]

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1. Mechanical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 31750 Tronoh, Perak (Malaysia)

In this study, intumescent fire retardant coatings (IFRC) were developed to investigate the synergistic effects of reinforced mica and wollastonite fillers based IFRC towards heat shielding, char expansion, char composition and char morphology. Ammonium poly-phosphate (APP) was used as acid source, expandable graphite (EG) as carbon source, melamine as blowing agent, boric acid as additive and Hardener H-2310 polyamide amine in bisphenol A epoxy resin BE-188(BPA) was used as curing agent. Bunsen burner fire test was used for thermal performance according to UL-94 for 1 h. Field Emission Scanning Electron Microscopy (FESEM) was used to observe char microstructure. X-Ray Diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) were used to analyse char composition. The results showed that addition of clay filler in IFRC enhanced the fire protection performance of intumescent coating. X-Ray Diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) results showed the presence of boron phosphate, silicon phosphate oxide, aluminium borate in the char that improved the thermal performance of intumescent fire retardant coating (IFRC). Resultantly, the presence of these developed compounds enhanced the Integrity of structural steel upto 500°C.

• OSTI ID: 22488619
• Journal Information: AIP Conference Proceedings, Vol. 1669, Issue 1; Conference: SCMSM 2014: 23. scientific conference of Microscopy Society Malaysia, Tronoh (Malaysia), 10-12 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM
BORATES
BORON PHOSPHATES
CHARS
CLAYS
EPOXIDES
FIELD EMISSION
FOURIER TRANSFORMATION
GRAPHITE
INFRARED SPECTRA
MELAMINE
MICA
MICROSTRUCTURE
MORPHOLOGY
OXIDES
POLYAMIDES
RESINS
SCANNING ELECTRON MICROSCOPY
SILICON PHOSPHATES
X-RAY DIFFRACTION