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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Preparation and tribological properties of polyetheretherketone composites.
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Preparation and tribological properties of polyetheretherketone composites.

机译：聚醚醚酮复合材料的制备及摩擦学性质。

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摘要

Polyetheretherketone (PEEK) is a thermoplastic engineering plastic with excellent mechanical properties. In this article, PEEK and its composites filled with ultrahigh-molecular-weight polyethylene (UHMWPE) were prepared by vacuum hot-pressing method. Tribological properties of these materials were investigated by block-on-ring friction and wear rig. An alloy (CoCrMo) ring and a ceramic (Si(3)N(4)) ring were used as friction pairs. The experiments were conducted under deionized water lubrication (DWL), saline lubrication (SL), and calf serum solution lubrication (CSSL). Worn surfaces morphology was observed and analyzed by metallographic microscope. The results indicated that friction coefficients of PEEK/UHMWPE composites were effectively reduced when compared with pure PEEK. When the materials slid against the alloy (CoCrMo) ring, wear rates of PEEK/UHMWPE were also effectively reduced when compared with pure PEEK. Wear mechanisms of PEEK were mainly ploughing and slight scratches under CSSL condition, whereas the quantity of the ploughing and scratches for PEEK/20%UHMWPE were significantly reduced.
机译：聚醚醚酮（PEEK）是一种热塑性工程塑料，具有优异的机械性能。在本文中，通过真空热压方法制备填充有超高分子量聚乙烯（UHMWPE）的PEEK及其复合材料。通过嵌入环摩擦和磨损钻机研究了这些材料的摩擦学性质。合金（COCRMO）环和陶瓷（Si（3）N（4））环用作摩擦对。实验在去离子水润滑（DWL），盐水润滑（SL）和小牛血清溶液润滑（CSSL）下进行。通过金相显微镜观察和分析磨损的表面形态。结果表明，与纯PEEK相比，PEEK / UHMWPE复合材料的摩擦系数有效地减少。当与合金（COCRMO）环滑动时，与纯PEEK相比，PEEK / UHMWPE的磨损率也有效地降低。 PEEK的磨损机制主要是在CSSL条件下犁犁和轻微划痕，而PEEK / 20％UHMWPE的耕作和划痕的数量显着降低。

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