PHOTO-HARDENING METHOD OF SILICONE RUBBER SURFACE, AND SILICONE RUBBER MOLDED BODY

摘要

To provide a photo-hardening method of a silicone rubber surface capable of hardening a silicone rubber surface to an abrasion resistant surface while leaving a rubber property feeling without changing glossiness, and further capable of improving oil penetrability resistance of the rubber, and a method of producing a silicone rubber molded body having a hardened surface.SOLUTION: The photo-hardening method of a silicone rubber surface includes a hardening process (A) of irradiating the surface of a silicone rubber molded body with vacuum ultraviolet light having a wavelength of not greater than 200 nm by an irradiation energy range of 10-3,000 mJ/cmby means of, for example, a xenon excimer lamp and the like to form an oxidized layer by a photooxidation reaction on the irradiated part.SELECTED DRAWING: Figure 1