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Flame Retardancy in Epoxy Resin of the Flame Retardant from Bisphenol-A Bis(diphenyl phosphate)/SiO_2

Weiying Gao

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Abstract

The Flame retarded resin BDP/EP and BDP/SiO2/EP were prepared by using BDP,SiO2 and epoxy resin(EP).The results demonstrated that when the BDP/SiO2 loading was only 20 %(BDP/SiO2,15/5),the flame retardancy of BDP/SiO2/EP could still pass UL94 V-0 rating,and its limited oxygen index value reached 30.4.TGA data obtained in pure nitrogen showed that SiO2 could effectively promote the char formation of the BDP/EP system,and the char residue of BDP/SiO2/EP could reach 30.8 % at 500 ℃.The cone experimental results showed that the heat release rate lowed 73.1 % than those of pure EP.SEM investigations revealed that the residual chars were intact,multicellular and strong.

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What this paper is about

The Flame retarded resin BDP/EP and BDP/SiO2/EP were prepared by using BDP,SiO2 and epoxy resin(EP).The results demonstrated that when the BDP/SiO2 loading was only 20 %(BDP/SiO2,15/5),the flame retardancy of BDP/SiO2/EP could still pass UL94 V-0 rating,and its limited oxygen index value reached 30.4.TGA data obtained in pure nitrogen showed that SiO2 could effectively promote the char formation of the BDP/EP system,and the char residue of BDP/SiO2/EP could reach 30.8 % at 500 ℃.The cone experimental results showed that the heat release rate lowed 73.1 % than those of pure EP.SEM investigations revealed that the residual chars were intact,multicellular and strong.

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Available abstract

The Flame retarded resin BDP/EP and BDP/SiO2/EP were prepared by using BDP,SiO2 and epoxy resin(EP).The results demonstrated that when the BDP/SiO2 loading was only 20 %(BDP/SiO2,15/5),the flame retardancy of BDP/SiO2/EP could still pass UL94 V-0 rating,and its limited oxygen index value reached 30.4.TGA data obtained in pure nitrogen showed that SiO2 could effectively promote the char formation of the BDP/EP system,and the char residue of BDP/SiO2/EP could reach 30.8 % at 500 ℃.The cone experimental results showed that the heat release rate lowed 73.1 % than those of pure EP.SEM investigations revealed that the residual chars were intact,multicellular and strong.

Key concepts: Fire retardant, Char, Epoxy, Bisphenol A, Materials science, Limiting oxygen index, Nuclear chemistry, Cone calorimeter

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Flame Retardancy in Epoxy Resin of the Flame Retardant from Bisphenol-A Bis(diphenyl phosphate)/SiO_2 — Research Paper | ScholarLens