摘要
[目的]研究了影响动车组风挡橡胶老化的因素。[方法]通过扫描电镜(SEM)、能谱(EDS)等手段对老化风挡橡胶进行分析,并对不同清洗剂和蒸馏水浸泡后风挡橡胶试片的质量、硬度、官能团、表面粗糙度等方面的变化进行测试,考察了紫外线照射的影响。[结果]清洗剂对风挡橡胶的影响较小,但清洗后的紫外老化对风挡橡胶有一定影响,紫外老化后的风挡橡胶中C含量降低,O含量增加。[结论]风挡橡胶分子链的断裂,主要是分子层面的光化学降解,表面发生剧烈氧化反应,造成风档橡胶脆化。
[Objective]The factors affecting the aging of windshield rubber seal in electric multiple unit(EMU)were studied.[Method]Aged windshield rubber seal was analyzed by scanning electron microscopy(SEM),energy-dispersive spectroscopy(EDS),and other methods.The variations in quality,hardness,functional groups,surface roughness,and other aspects after immersions in different cleaning agents and distilled water were tested to investigate the effect of ultraviolet irradiation.[Result]The cleaning agent has little effect on the windshield rubber seal,but the UV aging after cleaning has a certain impact on the windshield rubber seal.The C content in the windshield rubber seal decreases and the O content increases after UV aging.[Conclusion]The breakage of the molecular chain of windshield rubber seal is mainly caused by photochemical degradation at the molecular level,resulting in severe oxidation reactions on the surface and causing embrittlement of windshield rubber seal.
作者
杜玮
谭鸿愿
崔德水
梁浚毅
闫旭
纪长军
宋笑林
DU Wei;TAN Hongyuan;CUI Deshui;LIANG Junyi;YAN Xu;JI Changjun;SONG Xiaolin(Metals and Chemistry Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;China Railway Guangzhou Group.,Ltd.Guangzhou EMU Depot,Guangzhou 511483,China;China Railway Shanghai Group Co.,Ltd.Shanghai Railway Economic Development Co.,Ltd.,Shanghai 200070,China;Liuzhou Beilijia Tuliao Co.,Ltd.,Liuzhou 545000,China;China Railway Harbin Group Co.,Ltd.Sankeshu Rolling Stock Depot,Harbin 150056,China;Daqin Railway Co.,Ltd.Taiyuan Locomotive Depot,Taiyuan 030032,China)
出处
《电镀与涂饰》
北大核心
2025年第6期103-109,共7页
Electroplating & Finishing
基金
中国铁路上海局集团有限公司科研计划(2024Z030)。
关键词
动车组
风挡
密封橡胶
清洗剂
紫外老化
electric multiple unit
windshield
rubber seal
cleaning agent
ultraviolet aging
作者简介
第一作者:杜玮(1988-),女,硕士,副研究员,研究方向为铁路车辆腐蚀与防护及清洗技术;通信作者:谭鸿愿(1990-),男,硕士,工程师,研究方向为动车组运用检修。
