T800碳纤维/环氧复合材料燃烧行为的实验研究  

Experimental Study on Combustion Behavior of T800 Carbon Fiber/Epoxy Composites

作　　者：王志超[1] 曲芳[2] 王志 吴鹏 WANG Zhi-chao;QU Fang;WANG Zhi;WU Peng(Shanghai Aircraft Design and Research Institute,Shanghai 200116,China;Shenyang Aerospace University,Liaoning Key Laboratory of Aircraft Fire Explosion Control and Reliability Airworthiness Technology,Shenyang 110136,China)

机构地区：[1]上海飞机设计研究院,上海200116 [2]沈阳航空航天大学辽宁省飞机火爆防控及可靠性适航技术重点实验室,辽宁沈阳110136

出　　处：《塑料科技》2021年第9期1-5,共5页Plastics Science and Technology

基　　金：辽宁省教育厅基础研究项目(JYT2020022)。

摘　　要：采用锥形量热仪、极限氧指数测试仪、垂直水平燃烧试验仪及扫描电镜等测试环氧树脂基体及T800碳纤维/环氧复合材料的燃烧特性、表面微观形貌及成炭行为。结果表明:50 kW/m^(2)辐射强度下,相比环氧树脂基体,T800碳纤维/环氧复合材料的点燃时间、达到热释放速率峰值和最大烟释放速率峰值的时间分别延迟51、204、34 s,热释放速率峰值与烟释放速率峰值分别降低76%和59%。T800碳纤维/环氧复合材料的最大极限氧指数可达61.8%、垂直和水平燃烧等级分别为V-0和HB。T800碳纤维/环氧复合材料具有优异的防火性能,依据密集碳纤维束及燃烧后产生的包覆在表面形成炭层,实现双向阻燃及控烟。The combustion characteristics,surface micromorphology and char formation behavior of epoxy resin matrix and T800 carbon fiber/epoxy composites were tested by cone calorimeter,limit oxygen index tester,vertical/horizontal burning tester and SEM.The results show that under 50 kW/m^(2) radiation intensity,the ignition time,time to peak heat release rate and maximum smoke release rate of T800 carbon fiber/epoxy composites are delayed by 51,204 and 34 s respectively,and the peaks of heat release rate as well as smoke release rate are reduced by 76% and 59% respectively compared with epoxy resin matrix.The maximum limiting oxygen index of T800 carbon fiber/epoxy composites can reach 61.8%.The vertical and horizontal combustion grades are V-0 and HB respectively.T800 carbon fiber/epoxy composites have excellent fire resistance.Based on the dense carbon fiber bundle and the carbon layer coated on the surface after combustion,the bidirectional flame retardant and smoke control is realized.

关 键 词：碳纤维 环氧树脂 复合材料 燃烧特性 烟释放速率 阻燃机理 

分 类 号：V258[一般工业技术—材料科学与工程]