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采用树脂传递模塑工艺(RTM)研究了三种典型苎麻纤维织物结构(平纹、斜纹和缎纹)对树脂流动性的影响,并研究了三种苎麻纤维织物结构对其增强酚醛树脂复合材料的拉伸性能和层间剪切性能的影响。结果表明,苎麻纤维织物树脂渗透率主要受纤维屈曲和流道面积的影响。斜纹和缎纹苎麻织物的纤维屈曲较小且流道面积较大,其织物的树脂渗透率较大,同时,较小的纤维屈曲使其增强的复合材料拉伸性能也较优。然而,不同织物形式对苎麻纤维织物/树脂复合材料的层间性能影响不大。
The effects of three typical ramie fiber fabric structures (plain, twill and satin) on the resin fluidity were studied by resin transfer molding (RTM). The effects of three ramie fiber fabric structures on the properties of the phenolic resin composites Tensile properties and interlaminar shear properties. The results show that the resin penetration rate of ramie fiber fabric is mainly affected by fiber buckling and flow area. The twill and satin ramie fabrics have smaller fiber buckling and larger runner area with greater resin permeability of the fabric and smaller fiber buckling to enhance the tensile properties of the composites. However, different fabric forms have little effect on the interlaminar properties of ramie fiber fabric / resin composites.