环氧端基甲基苯基硅油增韧聚苯并噁嗪树脂的研究  

Study on Polybenzoxazine Resin Toughened by Epoxy-terminated Methyl Phenyl Silicon Oil

作　　者：于丽萍[1,2] 颜春[2] 张笑晴[2] 李红周[2] 祝颖丹[2] 刘俊龙[1] 廖栋[1] 

机构地区：[1]大连工业大学纺织与材料工程学院,大连116034 [2]中国科学院宁波材料技术与工程研究所,宁波315201

出　　处：《材料导报》2012年第22期71-75,共5页Materials Reports

基　　金：国家重点基础研究发展计划项目(2010CB631104);中国科学院知识创新工程重要方向项目(KGCX-EW-210);国家自然科学基金(51103173);浙江省自然科学基金(Y4110609);宁波市自然科学基金(2011A610113);宁波市攻关项目(2011B1015)

摘　　要：采用环氧端基甲基苯基硅油(EPMPS)对聚苯并噁嗪(PBOZ)树脂进行増韧改性,研究了EPMPS/苯并噁嗪(BOZ)共混树脂的固化行为,考察了EPMPS含量对EPMPS/PBOZ共混树脂力学性能的影响,采用扫描电镜(SEM)观察了其冲击断裂形貌。当EPMPS含量为10%(质量分数)时,EPMPS/PBOZ共混树脂的缺口冲击强度和弯曲强度均达到最大,分别为2.87kJ/m2和146MPa,较纯PBOZ树脂分别提高了46%和33%。进一步采用动态热机械分析仪(DMA)和热重分析仪(TGA)分别研究了EPMPS/PBOZ共混树脂的粘弹性能和热稳定性能,发现EPMPS/PBOZ共混树脂具有较高的耐热性和热稳定性。Polybenzoxazine （PBOZ） resin was toughened by epoxy terminated methyl phenyl silicon oil （EPMPS）. The curing behaviors of EPMPS/benzoxazine （BOZ） blend resin were studied. The effects of EPMPS con- tent on mechanical property and morphology of the impact fracture surface of EPMPS/PBOZ blend resin were investi- gated. The results show that both the notched impact strength and the bending strength reach the maximum of 2.87 kJ/m2 and 146MPa, respectively, when the EPMPS content is 10wt%, and increase 46% and 33% comparing to the pristine PBOZ resin. The viscoelastic properties and the thermal stability were further studied by dynamic viscoelastic analysis （DMA） and thermogravimetric analysis （TGA）, respectively. The results show that EPMPS/PBOZ blend resin has good heat resistance and thermal stability.

关 键 词：改性 增韧 表征 聚苯并噁嗪环氧端基甲基苯基硅油 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]