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Updated: Jun 15, 2025

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高密度聚乙烯 (HDPE) 和回收聚乙烯 (PVB) 混合物在平板测试中的tribological性能

Scarlette Alejo-Martínez¹, Ulises Figueroa-López¹, Andrea Guevara-Morales¹

¹Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Atizapán de Zaragoza 52926, Mexico.

|June 13, 2025

概括

将回收聚乙烯 (rPVB) 添加到高密度聚乙烯 (HDPE) 中,可以显著减少高达40%的摩擦. 在10-15%重量%的RPVB下,可以看到最佳的结果,从而提高了 Tribological 的性能.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
部落学 (tribology) 是一个学科.

背景情况:

高密度聚乙烯 (HDPE) 具有良好的化学抗性,但其磨损性能差,机械性能适度.
回收聚乙 (rPVB) 是一种未被充分利用的材料,具有聚合物复合材料应用的潜力.
价值化rPVB可以为可持续材料开发和废物减少做出贡献.

研究的目的:

为了研究含有不同数量的RPVB的HDPE复合材料的tribological行为.
评估rPVB对HDPE摩擦系数 (CoF) 和耐磨性的影响.
评估HDPE/rPVB复合材料的机械性能和微观结构变化.

主要方法:

制备了含有5,10,15和20%重量%rPVB的HDPE复合材料.
在12,15和18N的施加负荷下进行了钉对盘磨损测试.
扫描电子显微镜 (SEM) 和差分扫描热量计 (DSC) 用于微观结构和热分析.

主要成果:

随着rPVB的增加,平均CoF下降了高达40%,达到15%的rPVB.
SEM显示出更细的碎片和改进的转移膜形成,与减少的CoF相关.
耐磨性呈现出复杂的趋势:在较低负载下增强粘附性,但由于RPVB的硬度较低,在较高负载下增加体积损失.
在低rPVB含量时,弹性模量增加,而抗拉强度和抗冲击能力下降.

结论:

将10-15%的重量%的rPVB纳入HDPE可以显著提高摩擦性能.
这种复合材料配方提供了一种可持续的方法,可以利用RPVB,同时改善HDPE的tribological特性.
需要仔细考虑rPVB含量,以平衡改善的摩擦与机械强度的潜在降低.

关键词:

摩擦系数摩擦系数高密度聚乙烯高密度聚乙烯机械回收机械回收再循环的聚乙烯甲.固体滑剂是一种固体滑剂.穿着穿着穿着穿着穿着穿着穿着

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