PES/CF/PET纤维混杂阻燃复合材料的热解及燃烧特性  

Pyrolysis and combustion characteristics of PES/CF/PET fiber hybrid flame retardant composites

作　　者：杨倩 李志民 陈长洁[1,2,3] 王新厚 Yang Qian;Li Zhimin;Chen Changjie;Wang Xinhou(Key Laboratory of Textile Fabric Technology,Ministry of Education,Donghua University,Shanghai 201620,China;College of Textiles,Donghua University,Shanghai 201620,China;National Engineering Laboratory of Modern Silk,Soochow University,Suzhou 215123,Jiangsu,China;College of Mechanical Engineering,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学纺织面料技术教育部重点实验室,上海201620 [2]东华大学纺织学院,上海201620 [3]苏州大学现代丝绸国家工程实验室,江苏苏州215123 [4]东华大学机械工程学院,上海201620

出　　处：《产业用纺织品》2023年第7期42-51,共10页Technical Textiles

基　　金：中央高校基本科研业务费专项资金(2232023G-01);苏州大学现代丝绸国家工程实验室开放课题(SDGC2244)。

摘　　要：通过热重分析法研究了N_(2)气氛下聚醚砜/碳纤维/聚对苯二甲酸乙二醇酯(PES/CF/PET)纤维混杂层压复合材料及三维针刺复合材料在不同升温速率下的热解过程,并通过Kissinger法得到了分解阶段的表观活化能和指前因子;通过锥形量热测试分析了2种复合材料在不同火灾环境下的燃烧特性。结果表明:升温速率对2种复合材料的热解过程均产生了影响,且对层压复合材料的影响较大。随着热辐射强度的增大,2种复合材料的热释放速率、产烟速率、总产热量、总产烟量均增大,但三维针刺复合材料的这些参数始终高于层压复合材料,表明其火灾危险性更大。总体而言,针刺工艺会对PES/CF/PET纤维混杂复合材料的热解及燃烧特性产生较大影响。The pyrolysis process of polyethersulfone/carbon fiber/polyethylene terephthalate(PES/CF/PET)fiber hybrid laminated composites and 3D needled composites at different heating rates under N_(2)atmosphere were investigated by thermogravimetric analysis.The apparent activation energy and predigital factor of the decomposition stage were obtained by the Kissinger method.The combustion characteristics of the two composites were analyzed by cone calorimetry tests in different fire environments.The results show that the heating has an influence on the pyrolysis process for both composites and more for laminated composites.As the intensity of heat radiation increases,the heat release rate,smoke production rate,total heat production,and total smoke production increase for both composites,but these parameters of 3D needled composites are always higher than those of laminate composites,indicating that it is a greater fire hazard.The needling process can have a large impact on the pyrolysis and combustion properties of PES/CF/PET fiber hybrid composites.

关 键 词：阻燃复合材料 热稳定性 燃烧特性 Kissinger法 火灾危险性 

分 类 号：TS193[轻工技术与工程—纺织化学与染整工程]