摘要
用十六烷基三甲基溴化铵直接处理钙基蒙脱土(MMT),使其层间距达到2.21 nm.采用非等温差示扫描量热(DSC)法研究环氧树脂/粘土体系的固化反应动力学,并用K issinger方法求得其表观活化能ΔE=41.03 kJ/mol,根据Crane理论计算得到反应级数为0.85,确定了使用4,4′-二氨基二苯醚二苯酮(BADK)作为固化剂的固化反应条件,最后采用非等温DSC法研究了环氧树脂/粘土纳米复合材料的热性能.结果表明,纳米复合材料具有较高的玻璃化转变温度.
Ca-montmorillonite was directly modified with hexadecyl trimethyl ammonium bromide. The interla-mellar spacing of the organophilie montmorillonite （O-MMT）, corresponding to the （001） plane peak reached 2.21 nm. The reaction process of the curing system （E-51/BADK/MMT） was studied by non-isothermal DSC and carefully analyzed. Based on the Kissinger method, the apparent activation energy （AE） was calculated to be 41.03 kJ/mol. The reaction order （n = 0.85） was calculated according to Crane theory. The curing reaction conditions with BADK as the curing reagent were found. At last, the thermal properties of epoxy resin/MMT nanoeomposites were studied by non-isothermal DSC. The experimental data indicate that Tg＇s of nanoeomposites are higher.
出处
《吉林大学学报（理学版）》
CAS
CSCD
北大核心
2008年第4期774-778,共5页
Journal of Jilin University:Science Edition
基金
吉林省重大科技发展计划项目基金(批准号:20070313)
佳木斯大学科研项目基金(批准号:L2007-91)
