双马来酰亚胺改性苯并噁嗪树脂复合材料的性能研究

摘要

The composite materials of benzoxazine (BOZ)/bismaleimide (BMI) /glass cloth were obtained under thermally polymerized condition with BMI in different proportions in this article. The physical and chemical properties of BOZ-BMI composite material have been explored. From the results, we can notice that when the gel time decreased, the tensile strength, shear strength and chemical resistance properties have been improved with the BMI proportion increasing. The upper results reveal that the BOZ/BMI composite materials possessing broad potential prospect under different application requirement.%利用双马来酰亚胺(BMI)对苯并噁嗪(BOZ)进行改性,借助溶液法制备了BOZ/BMI树脂,然后以该树脂为基体材料,玻纤布为增强材料,用层压法制备复合材料.并研究了BOZ/BMI体系的物理性能和反应特性,以及BOZ/BMI/玻璃布复合材料的力学性能、吸水性能及耐腐蚀性能.结果显示,随BMI用量的增加,BOZ/BMI树脂体系的凝胶时间缩短,同时复合材料的拉伸强度和剪切强度升高,吸水率下降,耐化学腐蚀性能得到增强.BOZ树脂复合材料因其优越性能拥有良好的应用前景.