Abstract The present research aims at understanding the tribological behaviour of advanced unsaturated polyester/vinyl ester based thermoset composites reinforced by inorganic (mineral-based) or organic (vegetal) fibres such as basalt and jute. These fibres are non-toxic and widely available in nature. Thermosets have limitations in the formation of a uniform transfer layer during sliding wear. To surpass these limitations, tribo-fillers such as polytetrafluoroethylene, polyoxymethylene or molybdenum disulphide (PTFE/POM/MoS2) are added into the contact surface. The composites developed for the current research are characterised for their friction and wear behaviour, using a large-scale (sample size typically 50 × 50 × 7 mm) linear reciprocating sliding flat-on-flat test configuration. In order to simulate real scale application, 50 mm/s sliding speed and 10 kN normal force which corresponds to 4 MPa contact pressure, are applied under dry contact conditions. In this research work 12 different tribocomposites are developed and tested against AISI 100Cr6 steel counterface. It was evidenced that composites blended with PTFE have the lowest coefficient of friction and longest service life. MoS2 filled tribocomposites have the highest coefficient of friction. The dominant wear mechanisms for the failure of all investigated composites are thermal degradation and delamination, and abrasion for the counter surface.

中文翻译：

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环保玄武岩和黄麻纤维增强热固性复合材料的大规模摩擦学表征

摘要 本研究旨在了解由玄武岩和黄麻等无机（矿物）或有机（植物）纤维增强的高级不饱和聚酯/乙烯基酯基热固性复合材料的摩擦学行为。这些纤维是无毒的，在自然界中广泛可用。热固性材料在滑动磨损过程中在形成均匀的传递层方面存在局限性。为了克服这些限制，接触表面添加了摩擦填料，如聚四氟乙烯、聚甲醛或二硫化钼 (PTFE/POM/MoS2)。为当前研究开发的复合材料使用大规模（样品尺寸通常为 50 × 50 × 7 毫米）线性往复滑动平对平测试配置来表征其摩擦和磨损行为。为了模拟真实的规模应用，在干接触条件下施加 50 mm/s 的滑动速度和 10 kN 的法向力，对应于 4 MPa 的接触压力。在这项研究工作中，开发了 12 种不同的摩擦复合材料，并针对 AISI 100Cr6 钢对接面进行了测试。事实证明，与 PTFE 混合的复合材料具有最低的摩擦系数和最长的使用寿命。MoS2 填充的摩擦复合材料具有最高的摩擦系数。所有研究的复合材料失效的主要磨损机制是热降解和分层，以及对应表面的磨损。事实证明，与 PTFE 混合的复合材料具有最低的摩擦系数和最长的使用寿命。MoS2 填充的摩擦复合材料具有最高的摩擦系数。所有研究的复合材料失效的主要磨损机制是热降解和分层，以及对应表面的磨损。事实证明，与 PTFE 混合的复合材料具有最低的摩擦系数和最长的使用寿命。MoS2 填充的摩擦复合材料具有最高的摩擦系数。所有研究的复合材料失效的主要磨损机制是热降解和分层，以及对应表面的磨损。