2.5D碳/酚醛模压复合材料的性能研究  

Properties of 2.5D Braided Carbon/Phenolic Compression Composites

作　　者：杨斌[1] 闫红英[1] 杨晓军[1] 

机构地区：[1]西安航天复合材料研究所,西安710025

出　　处：《纤维复合材料》2013年第4期-,共4页Fiber Composites

摘　　要：采用真空浸胶技术和模压成型工艺研制2.5D编织碳纤维/酚醛新型树脂基防热复合材料,对材料的拉伸性能、烧蚀性能和热常数等进行了测试。结果表明:2.5D碳/酚醛模压复合材料拉伸强度为424 MPa、拉伸模量为66.4 GPa,氧-乙炔线烧蚀率为0.013 mm/s,质量烧蚀率为0.049 g/s,比热容大于1.1 J/(g·K),导热系数小于0.6 W/(m·K),与传统的短纤维、碳布增强的酚醛模压材料相比,2.5D碳/酚醛模压复合材料具有较好的综合性能,可作为结构防热一体化复合材料。2. 5D braided carbon/phenolic composite as new resin matrix thermal protection material was investigated by vacuum impregnation and compression molding. Tensile properties,ablative properties and thermal constants of the composite were studied. Results indicated the tensile and tensile modulus were 424 MPa,66. 4 GPa. The linear ablation rate and mass ablation rate of oxyacetylene were 0. 013 mm / s and 0. 049 g / s. The thermal conductivity didn't exceed 0. 6 W /( m· K). The specific heat exceed 1. 1 J /( g·K). The combined performance of 2. 5D braided carbon / phenolic compression composite was better than that of chopped fiber phenolic composite or carbon cloth phenolic. It can bused as thermal protection and structural material.

关 键 词：真空浸胶 模压成型 2.5D编织碳纤维/酚醛 

分 类 号：TB332[一般工业技术—材料科学与工程]