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首页> 外文期刊>RSC Advances >Reciprocating sliding wear of hybrid PTFE/Kevlar fabric composites along different orientations
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Reciprocating sliding wear of hybrid PTFE/Kevlar fabric composites along different orientations

机译：PTFE / Kevlar混合纤维复合材料沿不同方向的往复滑动磨损

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The dry reciprocating sliding properties of two weaves, reinforced twill 2/2 (RT) and basket weave 3/3 (BW), of hybrid PTFE/Kevlar fabric composites were investigated using a pin-on-flat configuration along the selected orientations of 0°, 30°, 45°, 60° and 90° which were the reciprocating sliding directions of pin to weft yarn (PTFE). The morphologies of the worn surfaces of the composites were analyzed by means of Scanning Electron Microscopy (SEM). The PTFE transfer film and F element on the counterface were observed and analyzed respectively by SEM and Energy Dispersive X-ray Spectroscopy (EDS). The results showed that the orientations and weaves played an important role in the friction reduction and antiwear properties of PTFE/Kevlar fabric composites. Contrasting to BW PTFE/Kevlar fabric composites, RT PTFE/Kevlar fabric composites showed significant advantages in the antiwear performance along all the selected orientations. The main damage forms of PTFE/Kevlar fabric composites include fatigue wear and adhesive wear of the polymer matrix, and lifted, wrinkled and breakage of the fibers.
机译：沿着选定的0方向使用平针销配置，研究了混合PTFE /芳纶纤维织物的两种编织（增强斜纹2/2（RT）和篮编织3/3（BW））的干往复滑动性能°，30°，45°，60°和90°，这是针到纬纱（PTFE）的往复滑动方向。通过扫描电子显微镜（SEM）分析复合材料的磨损表面的形态。分别用SEM和能量色散X射线光谱（EDS）观察并分析了对接面上的PTFE转移膜和F元素。结果表明，取向和编织在PTFE /芳纶纤维复合材料的减摩和抗磨性能中起着重要作用。与BW PTFE / Kevlar织物复合材料相比，RT PTFE / Kevlar织物复合材料在所有选定方向上均显示出显着的抗磨性能优势。 PTFE /芳纶纤维复合材料的主要损坏形式包括聚合物基体的疲劳磨损和粘着磨损，以及纤维的起皱，起皱和断裂。

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