工艺与制造英文2023被引 21
竹纤维/玻纤网布增强环氧树脂混杂复合材料的物理和力学性能：纤维堆积序列的影响
Physical and Mechanical Properties of Bamboo Fiber/Glass Fiber Mesh Reinforced Epoxy Resin Hybrid Composites: Effect of Fiber Stacking Sequence
Jiangjing Shi, Wenfu Zhang, Shaohua Gu, Shaofei Yuan, Jian Zhang · Zhejiang Academy of Forestry
摘要整理
为进一步提高真空辅助树脂传递模塑（VARTM）工艺制备的竹纤维增强聚合物复合材料（BFRPs）的制备效率和性能，本研究采用VARTM工艺制备了竹纤维/玻纤网布增强聚合物混杂复合材料（BGRPs），研究了三种纤维堆积序列（GBBGBBG、BGBGBGB和BBGGGBB；B：竹纤维，G：玻纤网布）对BGRPs（即BGRP-1、BGRP-2和BGRP-3）的物理性能、力学性能及孔隙特征的影响。结果表明，玻纤网布的引入可缩短环氧树脂的注入时间，改善BFRPs的力学性能。BGRP-1表现出最低的吸水率（1.31%）和最高的剪切强度（15.55 MPa）。BGRP-1表面和底部的玻纤网布分别作为缓冲层延缓机械损伤，使其具有最优的落锤冲击性能。BGRP-2的弯曲强度和弯曲模量最高，分别为92.22 MPa和6.69 GPa。BGRP-3的力学性能低于BGRP-1和BGRP-2，微CT切片观察显示BGRP-3中部存在更多孔隙，这是由于环氧树脂对竹纤维浸润不充分所致。
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