中国塑料 ›› 2023, Vol. 37 ›› Issue (1): 106-111.DOI: 10.19491/j.issn.1001-9278.2023.01.016

• 塑料与环境 • 上一篇    下一篇

铁路废弃聚酰胺部件回收再生利用

赵微微(), 张勇, 刘志, 张彬, 高健   

  1. 北京铁科首钢轨道技术股份有限公司,北京 102206
  • 收稿日期:2022-10-10 出版日期:2023-01-26 发布日期:2023-01-26
  • 作者简介:赵微微(1990—),女,工程师,主要从事高分子铁路制品回收再利用领域,18811353712@163.com

Recycling and reutilization of railway waste polyamide gauge baffles

ZHAO Weiwei(), ZHANG Yong, LIU Zhi, ZHANG Bin, GAO Jian   

  1. Beijing Tieke Shougang Railway Technology Co,Ltd,Beijing 102206,China
  • Received:2022-10-10 Online:2023-01-26 Published:2023-01-26

摘要:

通过采用长度为4.5 mm、直径为10 μm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。

关键词: 扣件, 聚酰胺, 可再生

Abstract:

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.

Key words: gauge baffle, polyamide, recycling

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