超高分子质量聚乙烯辐射交联的研究现状

doi:10.3969/j.issn.2095-4344.2016.08.019

摘要/Abstract

摘要：

文章快速阅读：

文题释义：

超高分子质量聚乙烯：是一种相对分子质量超过10⁶的热塑性工程塑料，分子链柔顺性较好, 具备大部分塑料的良好性能，还具有极佳的生物相容性、化学稳定性、抗冲击性、耐磨性及耐腐蚀性。

辐射交联：指利用各种辐射，在聚合物高分子长链之间形成化学键或者围观强力物理结合点，从而改善聚合物的物理性能、化学性，并有可能引入新的性能。

背景：辐射交联可显著提高超高分子质量聚乙烯人工关节的耐磨性，降低磨损率。

目的：综述当前国内外超高分子质量聚乙烯辐射交联改性的研究进展。

方法：以“UHMWPE，irradiation crosslinking”为检索词，应用计算机检索1995年1月至2012年4月ISI WEB of Knowledge系列数据库，纳入与超高分子质量聚乙烯辐射交联相关的研究。

结果与结论：目前国内外超高分子质量聚乙烯辐射交联改性研究主要集中在磨擦性能、耐氧化性和机械性能方面。在高能射线辐照下，超高分子质量聚乙烯内产生自由基，自由基间相互交联。辐射交联改性极大提高了超高分子质量聚乙烯的耐磨性，但却降低了耐氧化性和机械性能。因此，如何在降低磨损率的基础上，提高耐氧化性和机械性能，获得这3种性能平衡的超高分子质量聚乙烯将是今后研究的重点。

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

ORCID: 0000-0001-6209-7635 (罗淑平)

关键词: 生物材料, 材料相容性, 超高分子质量聚乙烯, 辐射交联, 耐氧化性, 耐磨性, 机械性质能

Abstract:

BACKGROUND: Irradiation crosslinking can remarkably increase the abrasive performance of ultra-high molecular weight polyethylene (UHMWPE), thereby reducing its wear rate.
OBJECTIVE: To review the recent progress in irradiated crosslinking UHMWPE.
METHODS: A computer-based online search of ISI Web of knowledge was performed for articles related to irradiated crosslinking UHMWPE published from January1995 to April 2012 using the keywords of “irradiation crosslinking UHMWPE” in English.
RESULTS AND CONCLUSION: At present, domestic studies on irradiation crosslinking of UHMWPE mainly focus on the wear resistance, oxidation resistance and mechanical properties. Under high-energy radiation, radicals generate from the UHMWPE, which are inter-crosslinked. Irradiation crosslinking dramatically enhances the UHMWPE wear resistance, while reduces its oxidation resistance and mechanical properties. In the future, the research will focus on how to develop new UHMWPE composite with good wear resistance, oxidation resistance and mechanical properties.

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

罗淑平，陈云平，黄嘉祐. 超高分子质量聚乙烯辐射交联的研究现状[J]. 中国组织工程研究, 2016, 20(8): 1190-1195.

Luo Shu-ping, Chen Yun-ping, Huang Jia-you. Irradiation crosslinking of ultra-high molecular weight polyethylene[J]. Chinese Journal of Tissue Engineering Research, 2016, 20(8): 1190-1195.

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