摘要
提出了一种SiO_(2)溶胶改性的方法,通过制备溶胶-乳液体系,在碳纤维表面涂覆了SiC/SiO_(2)复合抗氧化涂层,大大提高了碳纤维的抗氧能力。同时还研究了溶胶配比、放置天数和纳米SiC颗粒含量对涂层性能的影响。通过热重分析,傅里叶红外光谱和X-射线衍射对涂层的抗氧化能力和结构成分进行了表征,并对涂层碳纤维的力学性能进行了测试。结果表明,该涂层对碳纤维机械性能影响较小,能有效提高碳纤维的抗氧化能力,将其初始氧化温度提高近300℃,拓宽了碳纤维的应用范围。
A modified sol-gel method was proposed to prepare SiC/SiO_(2)sol-emulsion system.Then composite antioxidant coating was coated at the surface of carbon fiber.The thermal properties,structural and components of the coating were analyzed by thermogravimetric analysis,Fourier infrared spectroscopy,and X-ray diffraction.The experimental results show that the coating can improve the antioxidant ability of carbon fiber effectively and expand the application range of carbon fiber without affecting its mechanical properties.
作者
杨光远
彭三文
王旭
王闻
黄志雄
YANG Guang-yuan;PENG San-wen;WANG Xu;WANG Wen;HUANG Zhi-xiong(China Tobacco Hubei Industrial Cigarette Materials,LLC,Wuhan 430050,China;School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China)
出处
《武汉理工大学学报》
CAS
北大核心
2019年第7期13-20,共8页
Journal of Wuhan University of Technology
关键词
改性溶胶凝胶法
抗氧化
碳纤维
涂层
modified sol-gel method
oxidation resistance
carbon fiber
coating
作者简介
杨光远(1989-),男,博士生.E-mail:gyyang100@126.com
