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首页> 外文期刊>RSC Advances >Enhancing the mechanical performance of poly(ether ether ketone)/zinc oxide nanocomposites to provide promising biomaterials for trauma and orthopedic implants
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Enhancing the mechanical performance of poly(ether ether ketone)/zinc oxide nanocomposites to provide promising biomaterials for trauma and orthopedic implants

机译：增强聚醚醚酮/氧化锌纳米复合材料的机械性能，为创伤和骨科植入物提供有希望的生物材料

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Poly(ether ether ketone)/zinc oxide (PEEK/ZnO) composites were manufactured by using the injection molding technique. Before blending with the PEEK resin matrix, some ZnO nanoparticles were modified by γ-aminopropyltriethoxylsilane (APTES). The effect of surface modification of ZnO nanoparticles by amino groups and Si–O bonds was investigated. PEEK/ZnO composites were characterized by scanning electron microscopy (SEM), thermogravimetric analysis, and X-ray diffraction. The scanning electron micrographs showed that ZnO nanoparticles were encapsulated in the PEEK phase; within this phase, the nanoparticles were homogeneously dispersed. Mechanical and tribological properties were measured by tensile strength, flexural strength, coefficient of friction, and wear rate. It was shown that the interfacial compatibility between ZnO nanoparticles and PEEK matrix was significantly enhanced due to the amino and Si–O bonds decorated on the ZnO nanoparticles. More importantly, the thermal stability of PEEK improved upon the incorporation of ZnO nanoparticles into this matrix. Cell viability studies with mouse osteoblasts demonstrated that cell growth on PEEK and PEEK/ZnO was significantly enhanced. On the basis of the obtained results, PEEK/ZnO composites are recommended as promising candidates for orthopaedic materials and trauma implants.
机译：聚（醚醚酮）/氧化锌（PEEK / ZnO）复合材料是采用注塑技术制造的。在与PEEK树脂基体共混之前，一些ZnO纳米粒子已通过γ-氨基丙基三乙氧基硅烷（APTES）进行了改性。研究了氨基和Si-O键对ZnO纳米颗粒表面改性的影响。 PEEK / ZnO复合材料的特征在于扫描电子显微镜（SEM），热重分析和X射线衍射。扫描电子显微镜照片显示，ZnO纳米颗粒被包封在PEEK相中。在该阶段内，纳米颗粒被均匀分散。通过拉伸强度，抗弯强度，摩擦系数和磨损率来测量机械和摩擦学性能。结果表明，由于在ZnO纳米颗粒上修饰的氨基和Si-O键，使得ZnO纳米颗粒与PEEK基质之间的界面相容性显着增强。更重要的是，在将ZnO纳米粒子掺入该基质后，PEEK的热稳定性得到了改善。用小鼠成骨细胞进行的细胞活力研究表明，PEEK和PEEK / ZnO上的细胞生长显着增强。根据获得的结果，推荐将PEEK / ZnO复合材料用作骨科材料和创伤植入物的有前途的候选材料。

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