偶联剂表面处理nano-SiO_2填充BCE/BMI体系的固化动力学研究  

The Curing Reaction Kinetics of Nano-SiO_2 Treated by Coupling Agent Filled BCE/BMI

作　　者：方芬[1] 麻晓霞[1] 

机构地区：[1]宁夏大学化学化工学院,宁夏银川750021

出　　处：《广东化工》2011年第9期26-27,53,共3页Guangdong Chemical Industry

摘　　要：采用非等温差示扫描量热法(DSC)研究了偶联剂KH560处理的nano-SiO2填充BCE/BMI体系(nano-SiO2/BCE/BMI)的固化动力学,用Kissinger、Crane和Ozawa法确定固化动力学参数。结果表明,nano-SiO2/BCE/BMI体系的固化反应表观活化能为65.05 kJ.mol-1和6.61×106 s-1;反应级数为0.89;nano-SiO2/BCE/BMI体系的固化工艺参数:凝胶温度为116.33℃、固化温度为163.34℃及后处理温度为213.27℃。The non-isothermal curing kinetics of BCE/BMI resin modified with silica particle treated by coupling agent composites was investigated by using the differential scanning calorimetry（DSC）.The curing kinetics parameters of the modified system were obtained by kissinger equation and ozawa equation.based on the kissinger equation and ozawa equation,the apparent activation energy was 65.05 kJ·mol-1.The order of the curing reaction was 0.89 by Crane＇therory.Frequency factor was 6.61×106 s-1.Temperatures for the curing process were obtained by extrapolating T-β.Based on the DSC experiment,gelling temperature,curing temperaure and treating temperature were determined as 116.33 ℃,163.34 ℃ and 213.27 ℃.

关 键 词：氰酸酯 nanoSiO2 固化动力学 

分 类 号：TQ[化学工程]