Oil Dispersed Polymers Characteristics under External Voltage, Tribologicaland Corrosion Variables

Journal of applied mechanical engineering Pub Date : 2017-05-26 DOI:10.4172/2168-9873.1000266

Al-Ghamdi Sa, H. Abo-Dief, Mohamed At

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Abstract

The present work illustrated the effect of three types of oil-dispersed polymers; low-density polyethylene (LDPE), high-density polyethylene (HDPE) and Polysulphide rubber (PSR) on the abrasive sliding wear of stainless steel. Both friction coefficient and wear scar diameter obtained at various applied external voltage, and polymers weight percentage at 0.5 m/s sliding velocity, 20°C and 5N applied load. The samples immersed in H2SO4 medium at test period ranges from 10 to 50 days. The effect of the corrosion medium carried out and investigated at various values of the external voltages. The wear resistance related to the total mass loss measured and the worn surfaces analyzed by optical microscope. The application of external voltage increases both friction coefficient and wear scar diameter. At various applied external voltage and polymer contents, the wear scar diameter and friction coefficient trends of PSR has a lower values followed by both LDPE and HDPE trends respectively. Negative applied voltage has lower scar diameter while positive voltages has lower friction coefficients except at -4 Volt.

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油分散聚合物在外部电压、摩擦和腐蚀变量下的特性

本工作说明了三种类型的油分散聚合物的影响;低密度聚乙烯(LDPE)、高密度聚乙烯(HDPE)和聚硫橡胶(PSR)对不锈钢的磨料滑动磨损。得到了不同外加电压下的摩擦系数和磨损疤痕直径，以及在0.5 m/s滑动速度、20°C和5N外加载荷下聚合物重量百分比。样品浸泡在H2SO4介质中，测试周期为10 ~ 50天。腐蚀介质的影响在不同的外部电压值下进行了研究。耐磨性与测量的总质量损失有关，并通过光学显微镜对磨损表面进行了分析。外加电压使摩擦系数增大，磨损痕直径增大。在不同外加电压和聚合物含量下，PSR的磨损疤痕直径和摩擦系数变化趋势均较低，其次是LDPE和HDPE。负施加电压具有较低的疤痕直径，而除-4伏外，正电压具有较低的摩擦系数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of applied mechanical engineering

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