接枝改性环氧树脂/不饱和聚酯互穿聚合物网络的研究  

STUDY ON GRAFTING MODIFIED INTERPENETRATING POLYMER NETWORKS BASED ON EPOXY RESIN/UNSATURATED ESTER RESIN

作　　者：段景宽[1] 倪新梅 汪根林[1] 江平开[1] 

机构地区：[1]上海交通大学化学化工学院,上海200240 [2]江苏省无锡市惠山区堰桥镇科技办公室,无锡214174

出　　处：《工程塑料应用》2009年第7期9-14,共6页Engineering Plastics Application

摘　　要：研究了双酚A双烯丙基醚(ABE)对脂环族环氧树脂(CER)/三羟甲基丙烷三甲基丙烯酸酯(TMPTMA)分步互穿聚合物网络(SIPNs)的改性。利用扫描电子显微镜(SEM)考察了改性SIPNs形成的过程及最终固化物的微观结构,在此基础上研究了ABE用量对CER/TMPTMA SIPNs固化过程中的凝胶时间、最终固化物的力学性能及介电性能的影响。结果表明,ABE的加入没有改变CER/TMPTMA所形成SIPNs的结构,制得的改性SIPNs没有出现明显相分离现象。随着ABE用量的增加,改性SIPNs的冲击性能逐渐提高;当ABE用量为10份时,改性SIPNs的弯曲性能最佳。ABE的加入还改善了改性SIPNs的介电性能,提高了改性SIPNs的电气强度。当ABE用量为20份时,改性SIPNs的电气强度最高。The modification of bisphenol A bisallyl ether（ABE） on subsection interpenetrating polymer networks（SIPNs） of eyeloaliphatie epoxy resin （ CER）/trimethylol - 1, 1, 1 - propane trimethaerylate （TMPTMA） was studied. The formation process and morphology of the modified SIPNs were studied by means of scanning electron microscopy（SEM）. Based on this, the effects of dosage of ABE on gel time during curing process, mechanical and dielectric properties of the SIPNs were also investigated. The results showed that ABE didn＇t change the structure of SIPNs formed by CER/TMPTMA, and the phase separation of the modified SIPNs didn＇t occur. The impact property of SIPNs was improved with the dosage of ABE increasing. When the dosage of ABE was 10 phr, the bending property of SIPNs was the best. The dielectric property of SIPNs was ameliorated by ABE and the dielectric strength was improved. When the dosage of ABE was 20 phr, the dielectric strength of the SIPNs was the best.

关 键 词：环氧树脂 互穿聚合物网络 不饱和聚酯 

分 类 号：TQ637[化学工程—精细化工] TQ317