分析了环状对苯二甲酸丁二醇酯(CBT)-CBT100和CBT160两种树脂的反应特性,研究了三种锡类催化剂对CBT100树脂低粘度适用期和高温反应时间的影响,并对比了采用树脂粉末熔融浸溃成型和高温真空辅助灌注成型(VARTM)方法制备的玻璃纤维增强聚环状对苯二甲酸丁二醇酯(PCBT)复合材料的力学性能.研究结果表明,CBT160树脂高温反应速度较快,适合树脂粉末熔融浸渍相类似的成型工艺.CBT100树脂通过外加一定量的单丁基三异辛酸锡或二丁基二月桂酸锡催化剂,可以使其具有合适的适用期和反应聚合时间,适宜用于VARTM过程.含单丁基三异辛酸锡的CBT100树脂通过高温VARTM方法制备的玻纤增强PCBT复合材料的综合力学性能较好,略高于采用CBT160树脂用树脂粉末熔融浸渍成型方法制备的复合材料的力学性能.
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