| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface modification method for a vulcanized rubber or a thermoplastic elastomer, by which excellent slidability and durability against repetition of sliding can be imparted while maintaining sealing property without using an expensive resin having self-lubricating property.SOLUTION: The surface modification method aims modification of a vulcanized rubber or a thermoplastic elastomer as a target substance, and the method includes: a step 1 of forming a polymerization initiation point on the modification target substance; a step 2 of radically polymerizing monomers starting from the polymerization initiation point by irradiation with LED light at a wavelength of 300 to 400 nm to grow a polymer chain on the surface of the modification target substance; and a step 3 of subjecting a side chain of the polymer chain to esterification, transesterification or amidation. |
