SiC/SiO_(2)复合涂层对碳纤维及其复合材料抗氧化性能影响研究  

Study on the effect of SiC/SiO_(2)complex coating on the antioxidant performance of carbon fiber and its composite materials

作　　者：闫海波 陶佳栋 周子涵 黄志雄[1] 石敏先[1] 丁杰[1] YAN Haibo;TAO Jiadong;ZHOU Zihan;HUANG Zhixiong;SHI Minxian;DING Jie(School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070

出　　处：《复合材料科学与工程》2025年第3期130-138,共9页Composites Science and Engineering

基　　金：湖北省自然科学基金面上项目(2024AFB833)。

摘　　要：采用溶胶-凝胶法和先驱体浸渍裂解法在碳纤维表面制备了一种SiC/SiO_(2)复合涂层,并使用热压罐工艺制备了碳纤维增强酚醛树脂基复合材料,测试了复合材料在600℃、800℃、1000℃下氧化后的弯曲强度,研究了涂层对碳纤维及其复合材料抗氧化性能的影响。结果表明:经过在1000℃空气下的氧化,复合涂层碳纤维/酚醛树脂复合材料弯曲强度为60 MPa,是相同条件下的原始碳纤维/酚醛树脂复合材料弯曲强度的3.3倍,SiC/SiO_(2)涂层对碳纤维有较好的抗氧化效果且会使复合材料具备一定的弯曲强度。在SiC/SiO_(2)涂层的协同保护下,复合涂层碳纤维/酚醛树脂复合材料在氧乙炔火焰下表现出更好的耐烧蚀性能。A SiC/SiO_(2)complex coating is prepared on the surface of carbon fiber by sol-gel method and precursor infiltration pyrolysis method,and carbon fiber reinforced phenolic resin matrix composites are prepared by using autoclave process,the flexural strength of the composites is tested after oxidation at 600℃,800℃and 1000℃,studied the effect of coating on the oxidation resistance of carbon fiber and its composite materials.The results show that the flexural strength of complex coating carbon fiber/phenolic resin composites after oxidation at 1000℃in air is 60 MPa,which is 3.3 times of the flexural strength of original carbon fiber/phenolic resin composites under the same conditions,and the good antioxidant effect of SiC/SiO_(2)coating on carbon fibers gives composite materials a certain flexural strength.And under the synergistic protection of SiC/SiO_(2)coating,the complex coating carbon fiber/phenolic resin composite material exhibits better ablation resistance under oxygen acetylene flame.

关 键 词：SiC/SiO_(2)复合涂层 碳纤维 树脂基复合材料 抗氧化性能 弯曲性能 耐烧蚀性能 

分 类 号：TB332[一般工业技术—材料科学与工程]