论文部分内容阅读
研究了双马来酰亚胺树脂定型剂含量对0°/90°双轴向经编织物(Non-crimp fabric,NCF)定型效果、液态成型工艺性、复合材料力学性能的影响。采用厚度回弹、C型回弹的方法表征定型效果;采用厚度压缩与偏轴拉伸实验表征带定型剂织物成型工艺性;并采用弯曲实验与层间剪切实验表征复合材料力学性能。实验结果表明定型剂的添加显著提高了NCF织物的预定型效果;经定型剂处理后NCF织物的面内剪切模量有了较大提高,抗剪切变形能力增强;添加定型剂对0°/90°双轴向NCF织物复合材料的力学性能影响不大,但在改善其工艺性的同时并不会降低其复合材料的力学性能。
The effects of the content of bismaleimide resin fixing agent on the setting of 0 ° / 90 ° NCF, the liquid forming process and the mechanical properties of the composites were investigated. The thickness of the fabric was measured by thickness-compression and eccentric-axis tensile test, and the mechanical properties of the composite were characterized by bending test and interlaminar shear test. The experimental results show that the addition of the fixing agent significantly improves the predetermined effect of the NCF fabric. The in-plane shear modulus of the NCF fabric increases greatly after the fixing agent is treated, and the anti-shear deformation ability is enhanced. / 90 ° biaxial NCF fabric has little effect on the mechanical properties, but improves its workability without reducing the mechanical properties of the composites.