竹纤维环氧树脂复合材料孔隙特征及其表征方法

孔隙是影响环氧树脂基复合材料性能的重要因素之一。以多级孔隙结构竹纤维为增强材料的竹纤维环氧树脂复合材料（BFEC）存在多态性孔隙结构，复合材料性能与孔隙特征存在复杂的关联性，对孔隙进行深入系统地研究具有非常深远的意义。文中分析了BFEC复合材料的孔隙类型、形成和控制方法以及孔隙特征对复合材料性能的影响，对孔隙常规表征方法和新技术手段进行了分类归纳，总结了BFEC复合材料孔隙研究中存在的问题，并提出未来研究方向，以期为调控BFEC复合材料孔隙特征以及揭示孔隙对复合材料的影响提供参考。

Void Characteristics and Characterization of Bamboo Fiber/Epoxy Composites

Void is one of the important factors affecting the properties of epoxy resin matrix composites. Bamboo fiber epoxy resin composites (BFEC) with multilevel pore structure bamboo fiber as the reinforcing material have polymorphic void structure, and there is a complex correlation between the properties of the BFEC and void characteristics. It is therefore of great significance to study in depth the void. This paper introduces the void types, formation and control methods of the BFEC, analyzes the effect of void characteristics on the properties of the BFEC, classifies the conventional methods of void characterization methods and new techniques, and concludes the existing problems and research directions in the study of BFEC. It is hoped that this paper would provide a reference for regulating the void characteristics of BFEC and revealing the effect of void on BFEC.