文献类型：期刊文献

中文题名：N,N,N,’N’-四炔丙基-4,4’-二氨基-二苯甲烷的热固化反应及其固化产物的热稳定性研究

英文题名：Thermail Curing of N,N,N',N'-Tetra Propargyl-P,P'-Diaminao Diphenyl Methane and Themal Stability

作者：薛莲[1];扈艳红[1];沈学宁[1];黄发荣[1];杜磊[1]

机构：[1]华东理工大学国防材料工程研究所,上海200237

年份：2006

卷号：36

期号：2

起止页码：38

中文期刊名：宇航材料工艺

外文期刊名：Aerospace Materials & Technology

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：973资助项目(5131101)

语种：中文

中文关键词：端炔丙基树脂;热固化;热稳定性

外文关键词：Propargyl resin, Thermal curing, Thermal stability

摘要：初步研究了N,N,N,’N’-四炔丙基-4,4’-二氨基-二苯甲烷(TPDDM)的热固化反应,通过DSC分析其固化行为特征。FT-IR观察了它固化过程中特征官能团变化,对比了其在空气中和氮气中固化行为的差异,发现在空气中固化产物出现1 733 cm-1的峰,推断是被氧化所致,并通过DSC和FT-IR确定了固化条件。利用TGA技术考察了该固化产物在空气中和氮气中的热稳定性。结果表明:在空气中固化产物起始失重率为5%的分解温度为414.4℃,高于在氮气中的392.8℃。TPDDM的固化产物在氮气中700℃残碳率为53.9%,在空气中全部分解。
N, N, N＇, N＇-tetra propargyl- p, p＇-diamino diphenyl methane （TPDDM） is one of propargyl-terminated compounds. Its thermal curing properties are studied by DSC analysis. The changes of functional groups are traced by FT-IR spectra during curing of TPDDM under air and nitrogen atmosphere respectively. The wavenutubers of 1 733 cm^-1 demonstrate that oxidation has occurred when TPDDM is cured under air. TCA curves of cured TPDDM show that the initial temperature of degradation under air（414.4℃ ） is a little higher than that under nitrogen（392.8℃ ）. At the same time, char yield of cured TPDDM docomposed in nitrogen is 53.9% at 700℃, while it is near zero in air.