| 摘要 |
<p>A composition and method are disclosed to provide a substrate such as glass, plastic, metal, inorganic polymer coated substrate or inorganic coated substrate with a durable non-wetting surface. The composition includes a perfluoroalkylalkyl silane selected from compounds having the general formula RmR'nSiX4-m-n where R is a perfluoroalkylalkyl radical, R' is an alkyl or vinyl radical, m is 1 and n is 0 or 1, m+n is not greater than 3, and X is selected from halogen, alkoxy or acyloxy radicals. The perfluoroalkylalkyl silane is in a solvent such as an alkane, alkene, aromatic hydrocarbons, ether, ketone or halogenated hydrocarbon which together form a composition which initially wets the surface. As the perfluoroalkylalkyl silane reacts with the surface, the remaining composition is repelled by the perfluoroalkylalkyl silane treated surface due to the difference between the surface tension of the solvent and the free energy of the treated surface, for expedient removal of the remaining composition from the treated surface.</p> |
