INTERNAL COMBUSTION ENGINE CONSTITUENT MEMBER, AND FORMATION METHOD FOR WATER/OIL REPELLENT COATING FILM

摘要

An internal combustion engine constituent member of the invention has on its surface a water/oil repellent coating film that is formed from a solution that contains a fluoroalkyl group-substituted metal alkoxide that is represented by a general formula: Rf1m-M(OR1 )n-m where Rf is a fluoroalkyl group represented by a formula: CF3-(CF2)3-R2 (where R2 is each of alkylene groups that have a carbon number of 2 to 10, and that are the same as or different from each other), and m is the number of the fluoroalkyl groups, and M is a metal atom, and R1 is each of alkyl groups that have a carbon number of 1 to 5, and that are the same as or different from each other, and n is a valence of the metal atom M.