三元共聚双马来酰亚胺树脂的制备与性能  

Preparation and properties of terpolymer bismaleimide resins

作　　者：刘思扬 李凌莉 陈平[2] 熊需海[3] 田雪璞 LIU Si-yang;LI Ling-li;CHEN Ping;XIONG Xu-hai;TIAN Xue-pu(Xi'an Aerospace Composites Research Institute,Xi'an 710025,China;State Key Laboratory of Fine Chemiculs,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China;Liaoning Key Laboratory of Advanced Polymer Marix Composites,Shenyang Aerospace University,Shenyang 110136,China)

机构地区：[1]西安航天复合材料研究所,陕西西安710025 [2]大连理工大学化工学院精细化工国家重点实验室,辽宁大连116024 [3]沈阳航空航天大学辽宁省先进聚合物基复合材料重点实验室,辽宁沈阳110136

出　　处：《热固性树脂》2020年第4期26-29,共4页Thermosetting Resin

摘　　要：按照马来酰亚胺基团和烯丙基基团物质的量比为1∶0.87将寡聚双马来酰亚胺(PPCBMI)与o,o'-二烯丙基双酚A(DABPA)和二苯甲烷型双马来酰亚胺(BDM)反应合成了新型三元共聚双马来酰亚胺树脂。采用示差扫描量热分析、热重分析、动态机械分析及力学性能测试研究了PPCBMI含量对树脂的固化行为,固化物的耐热性、动态热机械性能和力学性能的影响。结果表明,PPCBMI可以有效地增韧BDM/DABPA体系,由于引入了大体积的Cardo结构,获得了耐热性与韧性兼具的理想树脂。The new ternary copolymerized bismaleimide resin was synthesized by the reaction of oligomeric bismaleimide(PPCBMI)with o,o′-diallyl bisphenol A(DABPA)and diphenylmethane bismaleimide(BDM)according to the molar ratio of maleimide group to allyl group 1:0.87. The effects of PPCBMI content on the curing behavior of the resin,the heat resistance,dynamic thermomechanical properties and mechanical properties of the cured product were investigated by differential scanning calorimetry analysis,thermogravimetric analysis,dynamic mechanical analysis and mechanical property test. The results showed that the PPCBMI could effectively toughen the BDM/DABPA system. Due to the introduction of the large-volume Cardo structure,the ideal resin with both heat resistance and toughness was obtained.

关 键 词：双马来酰亚胺 共聚改性 韧性 耐热性 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]