基于紫外-臭氧辐射的高分子材料表面改性研究进展

Research progress on surface modification of polymer materials based on ultraviolet-ozone

随着高分子复合材料的广泛应用,界面性能成为影响其综合表现的重要因素。紫外-臭氧辐射法(UVO)是一种简单经济的表面改性工艺,可激发高分子表面分子链,从而赋予其不同于本体性能的表面特性(如表面润湿性、与其他材料的界面相容性等),也为进一步的界面偶联提供反应位点。本文首先概述了国内外学者在电子、生物医疗等领域中采用UVO工艺改性不同种类高分子材料(聚酯类高分子材料、聚烯烃高分子材料、有机硅高分子材料、合成橡胶、纺织材料)表面的研究现状及相应研究成果;在此基础上,梳理了改性高分子材料表面与不同种类硅烷偶联剂(甲基丙烯酰氧基、环氧基、氨基、巯基硅烷偶联剂)的反应条件及复合材料界面性能;最后,对UVO工艺未来可能的应用空间进行了展望。

The interface properties have become one of the most important factors that affect the performance of widely-used polymer composites. As asimple and economical method, ultraviolet-ozone(UVO) can stimulate molecular chains upon the surface of polymer matrix. As a result, the modified surface, which possesses multiple reaction sites, can exhibit distinct properties(such as surface wettability and interface bonding performance with other materials), compared with the bulk material. This paper summarizes the application of UVO-induced polymer surface modification(polyester, polyolefin, silicone, rubber, and textile) in the fields of electronics, biological treatment, and so on.Then, the reaction conditions between modified polymer surface and different kinds of silane coupling agents(methacryloxy, epoxy, amino, and mercapto) are reviewed. At last, the suggestions for the possible application of UVO technology in the future are given.