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Authors
Advisor(s)
Abstract(s)
The spirophosphates are an important class of intumescent system, which produces effective voluminous char to protect the underlying materials. The char developed during the intumescent process play vital role in the flame retardant mechanism. Six different spirophosphates were synthesized, by treating spirodichlorodiphosphate with phenol, cresols (o isomers), di- and tri-methyl phenols and their char forming chemistry were investigated. The residual char acquired by subjecting the synthesized intumescent materials to isothermal pyrolysis at 300°C, 400°C, 500°C and 600°C were investigated by FTIR and SEM analysis.
these intumescent materials when they were subjected to isothermal pyrolysis at different temperatures. The formation of phosphate rich carbonaceous complexes was identif considerably a compact structure.
Description
Keywords
Spirophosphates Intumescence Char Condensed phase mechanism Phosphoric acids
Pedagogical Context
Citation
Mathan, David; Ponraju, D.; Vijayakumar, C.T.; Mesquita, L.M.R. (2022). Chemistry of char forming mechanism of spirophosphates. Research Journal of Material Sciences. 10:1, p. 1-8
Publisher
International Science Community Association