高分子基材料表面改性研究进展

Development of Surface Modification on Polymer Base Materials

大多数高分子材料表面硬度低、耐划伤性能差,影响了其使用寿命和应用范围。在高分子基体材料表面制备防护薄膜是一种简单有效的解决方法,成为表面防护的研究热点。然而,大多数高分子及其复合材料的表面自由能低,薄膜与基体间固有的界面粘附力较差,制约了其实际应用。文中探讨了机械啮合、化学键合和热力学粘附等三种主要的粘附机理,阐述了高分子基体材料表面改性的研究进展,指出了不同改性方法的优缺点,提出了薄膜界面粘附力研究存在的问题和发展方向。

Due to the low surface hardness,transparent plastic is easy to be scratched in use,which makes the loss of operation life and limits extended applications.The surface scratch behavior can be reduced effectively through coating a protective film on polymer surface,so it has attracted remarkable attention.However,most polymer resins and composites have low surface free energy,resulting in inherently poor interface adhesion properties between thin films and polymer substrates,thus has restricted their practical applications.The recent research on the adhesion mechanisms is then discussed,such as mechanical coupling,chemical bonding and thermodynamic adhesion.The progress of surface modification is summarized.Advantages and disadvantages of these methods are also discussed and summarized.Finally,the problems and future development trend of interface adhesion are put forward on the base of current research status.