The object of the present invention is to provide a surface modified rubber and a seal material which enable obtaining a rubber molding being excellent in nonadherence, low friction, abrasion resistance and plasma resistance while retaining strength, compression set, sealing capability and deformation follow-up properties inherently possessed by a rubber material. The process for producing a surface modified rubber according to the present invention comprises contacting a treatment liquid containing a monomer having a polymerizable double bond, a polymerization initiator and a solvent with a rubber base material; and heating the thus contact treated rubber base material so that the monomer is polymerized to thereby modify the rubber base material at its surface and vicinity thereof.
本发明的目的是提供一种表面改性橡胶和密封材料,使橡胶模塑具有优异的不粘附性、低摩擦性、耐磨性和抗等离子体性,同时保持橡胶材料固有的强度、压缩永久变形、密封能力和变形跟踪性能。根据本发明,生产表面改性橡胶的工艺包括:将含有可聚合双键单体、聚合
引发剂和溶剂的处理液与橡胶基材接触;加热经接触处理的橡胶基材,使单体聚合,从而对橡胶基材的表面及其附近区域进行改性。