聚醚醚酮表面接枝改性及其摩擦学性能研究

摘要传统的人工关节在长期使用中会产生大量磨屑，磨屑的组织会引发一系列不利的生物学以及化学反应，引起关节处产生骨吸收和骨溶解，最终导致人工关节松动和失效。本研究通过模仿天然关节软骨表层功能和结构，选用聚醚醚酮（PEEK）为人工关节承载界面材料，在其表面构建纳米级分子刷结构。表面接枝生物相容性极好地单体丙烯酸，对接枝后PEEK复合材料表面的摩擦性能进行测评。结果表明：采用紫外光接枝法，可成功地将丙烯酸接枝到PEEK材料表面。PEEK表面接枝丙烯酸后明显提高了材料表面的亲水性；PEEK表面接枝改性可有效提高材料表面的摩擦性能。87733

毕业论文关键词关节置换表面接枝摩擦性能

毕业设计说明书外文摘要

Title Research On Tribological Properties of PEEK Surface Grafting

Abstract Traditional artificial joint will produce large amounts of debris and wear debris organization will lead to a series of adverse biological and chemical reaction, causing the joints to produce bone resorption and osteolysis, eventually leading to the artificial joint loosening and failure。 This study through the imitation of natural articular cartilage surface function and structure, selection of poly-ether-ether-ketone (PEEK) artificial joints, bearing material interface of nanoscale molecular brush structure was constructed in the surface。 Surface grafting acrylic monomers excellently biocompatible, friction performance grafted PEEK composites surface evaluation。The results show: UV-graft method can be successfully grafted to PEEK surface。 The hydrophilicity of the surface of the material was obviously improved by grafting acrylic acid onto the PEEK surface; PEEK-grafted can improve the tribological properties of the surface。

Keywords Joint Replacement Surface graft Friction Performance

1 绪论 1

1。1 引言 1

1。2 PEEK及其性能 2

1。3 PEEK改性的方法 2

1。4 表面接枝聚合物刷 5

1。5 本文研究的内容和意义 7

2 实验方案及样品制备 8

2。1 实验方法 8From+优!尔.YouErw.com 加QQ75201`8766

2。2 实验材料及设备 8

2。3 样品制备 9

3 PEEK表面接枝改性材料的基本性能研究 12

3。1 PEEK表面接枝材料的润湿性的研究 12

3。2 PEEK表面接枝材料对红外吸收光谱吸收的检测 14

4 PEEK表面接枝改性材料的摩擦系数分析 17

4。1 接枝减摩原理 17

4。2 实验仪器及材料准备 18

4。3 摩擦实验结果与分析 18

结论 23

致谢 24

参考文献聚醚醚酮表面接枝改性及其摩擦学性能研究:http://www.youerw.com/cailiao/lunwen_144306.html