双马来酰亚胺改性苯并噁嗪树脂的力学性能及摩擦性能  

Mechanical properties and friction properties of benzoxazine resin modified by bismaleimide

作　　者：公超[1] 颜红侠[1] 李美丽[1] 马雷[1] 

机构地区：[1]西北工业大学理学院应用化学系,陕西西安710129

出　　处：《中国胶粘剂》2012年第8期1-3,14,共4页China Adhesives

基　　金：航空科学基金项目(2011ZF53064);西北工业大学研究生创业种子基金资助项目(Z2012162)

摘　　要：苯并噁嗪(BOZ)树脂作为一种新型的热固性PF(酚醛树脂),具有诸多优异性能,但其韧性和耐磨性较差。以AE-BMI(含烯丙基醚的双马来酰亚胺预聚体)为改性剂制备AE-BMI/BOZ改性树脂,并对其力学性能和摩擦性能进行了研究。结果表明:适量的AE-BMI对BOZ树脂具有明显的增韧增强作用,并且其耐磨性也明显提高;当w(AE-BMI)=15%时,AE-BMI/BOZ改性体系的弯曲强度(125.53 MPa)和冲击强度(11.57 kJ/m2)分别比纯BOZ体系提高了57%和60%,并且其摩擦因数(0.27)和磨损率[18.50×10-6mm3/(N.m)]分别比纯BOZ体系降低了15.6%和50.6%。Benzoxazine（BOZ） resin as a new type thermosetting PF（phenol-formaldehyde resin）, has many excellent properties, but its toughness and attrition-resistance were more poor. With AE-BMI（bismaleimide with allyl ether prepolymer） as modifier, an AE-BMI/BOZ modified resin was prepared, and its mechanics properties and friction properties were investigated. The results showed that the optimum AE-BMI contents had obviously toughening and strengthening functions in BOZ resin, and its attrition-resistance was obviously enhanced. The bend strength（125.53 MPa） and impact strength（ll.57 kJ/m2） of AE-BMI/BOZ modified system were 57% and 60% respectively more than those of pure BOZ system, and the attrition rate[18.50~ 10-6 mm3/（N~ m）] and friction factor（0.27） of AE-BMI/BOZ modified system were 15.6% and 50.6% respectively less than those of pure BOZ system when mass fraction of AE-BMI was 15%.

关 键 词：苯并噁嗪 双马来酰亚胺 力学性能 摩擦性能 

分 类 号：TQ433.431[化学工程]