摘要
本文采用ＤＳＣ、ＤＴＡ研究复合纳米ＴｉＯ２对酸酥／环氧树脂体系固化反应的影响，测定固化动力学数据，确定固化工艺参数近似值。结果表明：复合纳米ＴｉＯ２可降低树脂固化反应温度，动态ＤＳＣ测定确定含复合纳米ＴｉＯ２的树脂体系固化反应放热量－△Ｈ为１１０Ｊ／ｇ、活化能为５９．１１ｋＪ／ｍｏｌ、反应级数ｎ＝０．９１４及频率因子Ａ＝７．３８×１０４（１／ｓ），固化工艺参数： Ｔ凝胶＝６７℃，Ｔ固化＝１３３℃，Ｔ后处理＝１７７℃。
The effect of nanometer sized complex TiO2 catalyst on curing characteristic of acid anhydride/epoxy resin, the curing dynamic data and curing process parameters were studied by DSC and DTA in this paper. The result showed that the nanometer sized complex TiO2 could decrease curing temperature, curing exothermic △H determined by DSC was 110J/g, acti vated energy was 59. 11kJ/mol, order of reaction n= 0' 914, frequency factor A= 7. 38 × 104. (1/s) and curing process parameters were as follows, gel temperature 67C, curing temperature 133℃, after treatment temperature 177℃.
出处
《热固性树脂》
CAS
CSCD
2000年第1期26-29,共4页
Thermosetting Resin
基金
江苏省自然科学基金资助项目!(BK97134)
关键词
环氧树脂
酸酐
固化
热分析法
二氧化钛
催化剂
Nanometer sized complex TiO2 , Epoxy resin, Acid anhydride, Curing dynamics, Process
