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Thermal Degradation of Flame Retardant and Smoke Suppressant PVC Modified by Hydrotalcite and Zinc Oxide

資料類型：

PDF文件

關(guān)鍵詞：

PVC hydrotalcite zinc oxide flame retardant smoke
suppression pyrolysis

資料大小：

151K

所屬學(xué)科：

分子表征

來源：

2005年新型纖維與聚合物材料國際學(xué)術(shù)會(huì)議（10.19-10.21，上海）

簡介：

TheinfluenceofLDHsandZnOontheflameretardantandsmokesuppressionpropertiesofPVCwasstudied.ResultsshowedthatLDHs-ZnOhasasignificantsynergeticeffectwhentheratiois3:2；thereisthehighestvalueoflimitingoxygenindex(LOI)andthelowestvalueofsmokedensityrank(SDR).ThermalstabilityandsplitproductswereinvestigatedthroughthermogravimetryandPyGC-MSaswell.LDHs-ZnOeffectivelyacceleratedecompositionofPVCtoreleasehydrogenchlorideandformthetrans-conjugatedpolyenesequenceswhicheasilyformcross-linkedstructure,correspondingly,cyclizationtakesplaceobviouslyinPVCchaintoformaromaticcompoundssuchasbenzene,tolueneandnaphthalenewithoutLDHs-ZnOat350℃.ThereiscertainamountofaromaticcompoundsformedinPVC/LDHs-ZnOsampleduringdecompositionofPVCat600.

作者：

Zhonghou Zhang Chunmian Yan Meifang Zhu

上傳時(shí)間：

2007-08-08 13:29:18

下載次數(shù)：

606

消耗積分：

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