三维苎麻机织物蜂窝夹层复合材料的制备及力学性能分析

摘要

Ramie yarn with proper linear density was selected, 2D and 3D ramie woven fabric structures and parameters were designed . The composite materials using 2 D and 3 D ramie woven fabric as enhancement , reinforced phenolic resin as the coupling matrix and honeycomb sandwich as the core layer were made . The results show that the composites can be made with good shape .The effect of different ways of weaving on the mechanical properties of composite materials was analyzed .The results show that the impact resistance, bending resistance and tensile resistance of the composite material using 3D satin fabric as reinforcement are significantly higher than those of 2 D plain structure sandwich material and 3 D plain fabric reinforced composite material .%选取线密度合适的苎麻纱线，设计二维和三维苎麻机织物结构和参数，制备以二维和三维苎麻机织物作为增强体，增强酚醛树脂作为联结基质，蜂窝夹层作为芯层的复合材料，结果表明复合材料成型良好。以苎麻纤维作为增强体，分析不同的编织方式对复合材料力学性能的影响。结果表明：采用三维缎纹织物作为增强体的复合材料，其抗冲击、抗弯曲和抗拉伸性能要明显高于二维平纹结构夹层材料和三维平纹织物增强的复合材料。