氧化锆对炭纤维增强耐烧蚀复合材料烧蚀性能的影响  

Ablation resistant of hot vulcanized silicone rubbe/ZrO_2 composites

作　　者：刘艳辉[1] 智业 尹正帅 杨磊[1] 李勇[3] 

机构地区：[1]沈阳理工大学材料科学与工程学院,沈阳110159 [2]湖北三江航天江北机械工程有限公司,孝感432000 [3]东北大学材料与冶金学院,沈阳110189

出　　处：《固体火箭技术》2016年第2期265-268,274,共5页Journal of Solid Rocket Technology

基　　金：国家自然科学基金项目(51472048);沈阳市科技局项目(F15-199-1-18);辽宁省科技厅项目(2015004001)

摘　　要：以热硫化硅橡胶为基体,以炭纤维、白炭黑、氧化锆为填料,制备了热硫化硅橡胶/氧化锆耐烧蚀复合材料。考察了甲基苯基硅橡胶、炭纤维、氧化锆的含量对复合材料烧蚀性能及力学性能的影响。实验结果表明,随着甲基苯基硅橡胶、炭纤维、氧化锆含量的增加,复合材料的质量烧蚀率降低。当甲基乙烯基硅橡胶和甲基苯基硅橡胶各为50份、白炭黑30份、6 mm炭纤维10份、Zr O230份条件下,制备的复合材料耐烧蚀性最佳,抗拉强度5.28 MPa,质量烧蚀率为0.028 g/s,衬底温度在烧蚀72 s后升到最高温度102℃,烧蚀后氧化锆衍射峰强度增加。Hot vulcanized silicone rubber/zirconia ablation resistant composite material were prepared using the heat vulcaniza- tion silicone rubber as matrix, carbon fiber, silica, zirconia as filler.The effect of the content of phenyl silicone rubber, carbon fiber and zirconia on ablative performance and mechanical properties of the composites were studied.The experimental results show that mass ablation rate of composite material is reduced with the increase of the content of phenyl silicone rubber, carbon fiber and zirconia. When methyl phenyl glue accounts for 50 in 100 silicone rubber,silica for 30,carbon fiber of 6 mm for 10,ZrO2 for 30, the best formula of ablation resistance is obtained,the rate of mass ablation is 0.028 g/s, strength of extension is 5.28 MPa.The temperature of the substrate increases to the highest temperature （ 102℃） after 72 seconds, and the intensity of zirconia diffraction peak increa- ses after the ablation.

关 键 词：耐烧蚀 热硫化硅橡胶 氧化锆 炭纤维 

分 类 号：V258.3[一般工业技术—材料科学与工程]