CE/BMI/GO复合材料的制备与性能

以双马来酰亚胺树脂(BMI)预聚体改性氰酸酯树脂(CE)(CE/BMI)作为基体树脂,以氧化石墨烯(GO)作为增强体,通过浇铸成型工艺制备了CE/BMI/GO复合材料。研究了GO的质量分数对CE/BMI/GO复合材料力学和摩擦学性能的影响。结果表明,GO的加入有益于复合材料力学性能和摩擦学性能的提高。GO的质量分数为0.8%时复合材料获得最好的韧性和耐磨性。对比基体树脂,CE/BMI/GO复合材料的冲击强度和弯曲强度分别提高了33.6%和27.6%;摩擦系数和磨损率分别降低了22.5%和77.6%。

Preparation and Properties of Cyanate Resin/Bismaleimide/Graphene Oxide Composite

Cyanate resin (CE) modified by bismaleimide (BMI) pre-polymer (CE/BMI) was used as resin matrix,graphene oxide (GO) was used as reinforcer to prepare CE/BMI/GO composites by casting method. The influences of mass fraction of GO on the mechanical and tribological properties of the CE/BMI/GO composites were studied systematically. Results show that the addition of GO is beneficial to improve the mechanical and tribological properties of the composites. When the mass fraction of GO is 0.8%,the toughness and wear resistance of the composite are optimized. Compared with CE/BMI matrix,the impact and flexural strength of composite are increased by 33.6% and 27.6% respectively; and the frictional coefficient and wear rate are decreased by 22.5% and 77.6% respectively.