摘要
采用热空气老化和自然曝晒老化对动车组用地板布产品进行连续6000 h的老化实验,取不同老化阶段的样品进行力学及燃烧性能测试,研究了地板布的老化性能。结果表明,地板布材料对光老化更为敏感。经6000 h老化后,地板布材料的力学性能显著衰减,最大降幅超过30%,但仍能基本满足相关技术标准的要求,而各项阻燃防火性能均有小幅提升,说明光热老化过程主要影响地板布材料的力学性能,对防火安全性能无负面影响。
The aging test of floor cloth products in EMU was carried out for 6000 hours by using thermal ageing and natural light aging.With testing the mechanical properties and combustion properties of samples of different aging stages,the aging property of floor cloth was investicated.The results show that flooring materials are more sensitive to natural light aging.After 6000 hours of aging test,the mechanical properties of floor cloth material significantly attenuate,with a maximum reduction of more than 30%,but they can still basically meet the requirements of relevant technical standards.And the fire retardant performance has been slightly rised.It shows that the photothermal aging process mainly affects the mechanical properties of floor cloth materials and has no negative effect on fireproof properties.
作者
刘振华
徐超
吴绍利
李艳伟
张忠新
LIU Zhenhua;XU Chao;WU Shaoli;LI Yanwei;ZHANG Zhongxin(Research Institute of Metals and Chemistry,China Academy of Railway Sciences,Beijing 100081,China;Beijing Railway Zhongtieke of New Materials Technology Co.,Beijing 100081,China)
出处
《弹性体》
CAS
2020年第5期40-43,共4页
China Elastomerics
基金
中国国家铁路集团科研开发项目(P2018J003)。
关键词
动车组
地板布
老化实验
燃烧性能
EMU
floor cloth
aging test
combustion performance
作者简介
刘振华(1989-),男,河南巩义人,助理研究员,主要从事轨道交通阻燃材料方面的研究工作。
