Production manner null of water repellency antifouling

摘要

PURPOSE:To produce a building material having excellent water repellence and stain resistance by disposing a chemical adsorbed membrane containing fluoroalkyl groups on the substrate surface or coated surface of a building material through siloxane bonds. CONSTITUTION:A single molecular membrane 3 having fluoroalkyl groups is formed on the surface of the substrate 1 of a building material such as a plastic plate through siloxane bonds 2. In the case of a wall material made of a phenolic resin, the wall material is subjected to a surface-oxidizing treatment using an oxygen plasma and subsequently immersed in the dilute solution of a surfactant such as heptadecafluorodecyltrichlorosilane to remove and wash unreacted substances and simultaneously form a chemically adsorbed single molecular membrane.