一种改性苯并噁嗪树脂及其玻璃布层压板  

Modified Benzoxazine and its Glass Cloth Laminate

作　　者：郑林[1] 张驰[1] 王洲一[1] 赵培[1] 刘向阳[1] 顾宜[1] 

机构地区：[1]四川大学高分子科学与工程学院,高分子材料工程国家重点实验室,成都610065

出　　处：《航空材料学报》2011年第1期62-66,共5页Journal of Aeronautical Materials

基　　金：国家自然科学基金项目(50873062)

摘　　要：将二胺型苯并噁嗪(BOZ-M)与F-51环氧树脂和线性酚醛树脂共混,得到改性BOZ-M玻璃纤维增强层压复合材料基体树脂(BEP),并制备了相应的浇注体和E玻璃布层压板,采用DSC,DMA,TMA等手段考察其固化行为、尺寸稳定性及力学性能等,并采用SEM研究其浇注体断面形貌结构。结果表明,与BOZ-M相比,改性树脂BEP的固化反应向低温移动,凝胶化时间缩短;浇注体玻璃化转变温度提高至220℃,断裂伸长率提高至2.7%,力学性能优异;BEP/E玻璃布层压复合材料常温下具有较高的强度与模量,在180℃热态条件下有很高的力学性能保留率。A modified benzoxazine matrix resin（BEP） which can be used for advanced composite was prepared through the blend of M-benzoxazine（BOZ-M）,F-51epoxy resin and Novolac resin.The BEP resin-cast and its E-glass-cloth laminate were prepared as well.The test results indicated that the curing temperature of BEP resin was lower compared with BOZ-M resin.The BEP resin cast had excellent heat-resistance and mechanical properties.The glass transition temperature（Tg） and the elongation at break of the cast were improved to 220℃ and 2.7%,respectively.The BEP/E-glass cloth laminate had high strength and modulous at room temperature,and it also had excellent retention of mechanical properties at 180℃.

关 键 词：苯并噁嗪 树脂基体 层压板 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]