铁路废弃聚酰胺部件回收再生利用  

Recycling and reutilization of railway waste polyamide gauge baffles

作　　者：赵微微 张勇 刘志 张彬 高健 ZHAO Weiwei;ZHANG Yong;LIU Zhi;ZHANG Bin;GAO Jian(Beijing Tieke Shougang Railway Technology Co,Ltd,Beijing 102206,China)

机构地区：[1]北京铁科首钢轨道技术股份有限公司,北京102206

出　　处：《中国塑料》2023年第1期106-111,共6页China Plastics

摘　　要：通过采用长度为4.5 mm、直径为10μm的玻璃纤维和马来酸酐接枝聚烯烃弹性体(POE-g-MAH)增韧剂且添加量为10%时所制得的再生聚酰胺部件产品尺寸和性能指标满足要求,且部件具有良好的尺寸稳定性等,部件经组装疲劳性能测试后未发生损坏,各项组装性能均满足要求。结果表明,废弃聚酰胺部件经过收集、破碎、清洗、改性等工序后可成为良好的可再生资源,可继续应用于铁路市场。The recycled polyamide gauge baffles were employed by using the original polyamide gauge baffles prepared by using glass fibers with a length of 4. 5 mm and a diameter of 10 mm as a reinforcement and POE-g-MAH as an impact modifier at a loading of 10 wt%. The resultant recycled polyamide gauge baffles could meet the requirement of product size and performance indexes together with good size stability. There was no damage in the parts after the test of assembly fatigue performance, and all the assembly performance could meet the requirements. The results indicated that the waste polyamide parts were good renewable resources after collecting, crushing, cleaning, and modification, and they could be reused in the railway field.

关 键 词：扣件 聚酰胺 可再生 

分 类 号：TQ320.9[化学工程—合成树脂塑料工业]