工艺与制造英文2025被引 17
甲基丙烯酸甲酯-丁二烯-苯乙烯(MBS)核壳纳米粒子增强碳纤维环氧复合材料的力学性能研究
Enhancement of mechanical properties of carbon fiber epoxy composites using methylmethacrylate-butadiene-styrene (MBS) core-shell nanoparticles
Bertan Beylergi̇l, Mahide Betül Öztürkmen, Abdulrahman Al‐Nadhari, Sema Yıldız, Berkay Aydoğan, Mehmet Yıldız · Alanya University
摘要整理
本研究采用易分散的甲基丙烯酸甲酯-丁二烯-苯乙烯(MBS)核壳纳米粒子改善碳纤维/环氧树脂(CF/EP)复合材料的力学性能。通过真空辅助树脂传递模塑(VARTM)工艺制备了不同MBS粒子含量(1 wt.%~7 wt.%)的CF/EP复合材料。采用三点弯曲、夏比冲击、短梁剪切和Mode-I断裂韧性等测试方法评估复合材料的力学性能,均符合相关ASTM标准。结果表明,MBS粒子的加入显著提高了Mode-I层间断裂韧性(GIc),在7 wt.% MBS含量时达到最大值,相比参考复合材料提高了约177%。1 wt.% MBS纳米粒子使复合材料的弯曲模量略有下降,表现出增强的柔性,而7 wt.% MBS含量时产生协同效应,增强了刚度和结构补强效果。MBS纳米粒子的加入还提高了CF/EP复合材料的夏比冲击强度和阻尼性能,最高冲击强度在7 wt.% MBS时获得。较高的MBS含量降低了储存模量,而玻璃化转变温度基本保持不变。
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