STRUCTURE OF THE CONDENSED PHASE OF FIRE RETARDED PBT NANOCOMPOSITES BY TGA/ATR IN N2，2008纳米填充阻燃聚合物及复合材料国际学术研讨会（10.16-10.17，北京）-中国聚合物网,论文下载

STRUCTURE OF THE CONDENSED PHASE OF FIRE RETARDED PBT NANOCOMPOSITES BY TGA/ATR IN N2

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关键词：

PBT flame retardant nanonocomposites sepiolite phosphinate solid
phase mass residue residue

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549K

所属学科：

分子表征

来源：

2008纳米填充阻燃聚合物及复合材料国际学术研讨会（10.16-10.17，北京）

简介：

Recentlyphosphorousbasedfireretardantsandnanoparticlesarepromotedasalternativestohalogenatedfireretardantstoreducetoxicologicaldamagetotheenvironment.Toassessthecondensedphaseduringpyrolysis,thisstudypresentsthermal(byTGAinnitrogen)andcondensedphaseanalysisoftheresidue(byFTIR-ATR)ofPBTmodifiedbyaphosphinateFRand/ornanoparticles(sepiolite).ThethermalanalysisshowsthatthenanoparticlesdonotchangethepyrolysiskineticsofPBTwhereasthephosphinateFRdoes.ThecondensedphaseanalysisshowsthatboththephosphinateFRandthenanoparticleschangethestructureofcharcomparedwithpurePBT.IncontrasttothepurepolymerwhichleavesacharconsistingofoligomericcomponentsofPBT,thefireretardedpolymer(byphosphinateand/ornanoparticles)leavesacharconsistingofpolycyclicaromatichydrocarbons(PAH).ThePAHstructureofthecharisexpectedtomakethecharstrongerandcapabletowithstanderosioninfullscalefiretests.Thisobservationisverifiedfromthestrengthanalysisofthecharresidueinintermediatescaleflammabilityexperimentssuchasthoseintheconecalorimeter,wherecharisformedbehindtheflamesintheabsenceofoxygen.

作者：

A. Ramani, D. Bakirtzis, M. A. Delichatsios, J. Zhang

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2009-02-18 10:21:04

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