芳纶短纤维对三元乙丙橡胶热防护材料结构与性能的影响  

Effect of short aramid fiber on structure and properties of EPDM thermal protection composite

作　　者：唐士博 薛楠川 温世鹏[1] TANG Shibo;XUE Nanchuan;WEN Shipeng(Beijing Engineering Research Center of Advanced Elastomers,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]北京化工大学北京市先进弹性体工程技术研究中心,北京100029

出　　处：《弹性体》2022年第2期1-5,共5页China Elastomerics

基　　金：国家重点研发计划资助项目(2017YFE0126800)。

摘　　要：考察了芳纶短纤维作为耐烧蚀纤维在三元乙丙橡胶复合材料中的应用,探讨了芳纶短纤维的引入对三元乙丙橡胶复合材料的力学性能、静态热力学性能、热失重、阻燃性能和烧蚀性能的影响。结果表明,芳纶短纤维和二氧化硅在橡胶中构筑了完善的填料网络,提高了三元乙丙橡胶复合材料的拉伸强度和撕裂强度,提升了复合材料的热稳定性。在高温烧蚀后,形成明显的炭骨架和密实的炭层,获得良好的抗烧蚀性能。This research mainly focused on the application and function of short aramid fiber as the ablative fiber in EPDM composite.The effects of short aramid fiber on the mechanical properties,static thermodynamic properties,thermal weight loss,flame retardancy and ablative properties of EPDM composites were discussed.A filler network of short aramid fiber and silica was formed in rubber,which improved the tensile strength,tear strength and the thermal stability of EPDM composite.After the high temperature ablation,an obvious carbon skeleton and adense carbon layer were formed,and good ablative resistance of EPDM composites was obtained.

关 键 词：芳纶短纤维 三元乙丙橡胶 热性能 耐烧蚀 

分 类 号：TQ333.6[化学工程—橡胶工业]