| 摘要 |
<p>Article with a ceramic non-stick coating on its upper side, in which a first ceramic non-stick coating is obtained by hydrolysis and polycondensation of an aqueous mixture containing silane compound (I), nanoscale silicon dioxide particles, polydimethylsiloxane compound, 1-4C carboxylic acid, water and water miscible organic solvent, the first ceramic non-stick coating is applied on second ceramic non-stick coating and the second ceramic non-stick coating is obtained by hydrolysis and polycondensation of the aqueous mixture, is claimed. Article with a ceramic non-stick coating on its upper side, in which a first ceramic non-stick coating is obtained by hydrolysis and polycondensation of an aqueous mixture containing 10-70 wt.% of silane compound of formula (RSiX 3) (I), 8-21 wt.% of nanoscale silicon dioxide particles, 0-2 wt.% of polydimethylsiloxane compound of formula (HO-[Si(CH 3) 2] n-OH) (II), 0.1-2 wt.% of 1-4C carboxylic acid, 7-50 wt.% of water, and 10-60 wt.% of water miscible organic solvent, the first ceramic non-stick coating is applied on second ceramic non-stick coating and the second ceramic non-stick coating is obtained by hydrolysis and polycondensation of the aqueous mixture, is claimed. X : hydrolyzable groups or hydroxyl groups, preferably methoxy or ethoxy; R : 1-6C alkyl or 1-6C aryl, preferably methyl, ethyl or phenyl; and n : 2-170.</p> |
