| 摘要 |
PROBLEM TO BE SOLVED: To provide a photocatalytic coating material for environmental cleaning which is highly effective in environmental cleaning, forms a film with high strengths, and does not deteriorates a substrate material. SOLUTION: This photocatalytic coating material contains coating-film- reinforcing particles comprising silica gel particles and/or zeolite particles having an average particle size of 0.2-50 μm, photocatalyst particles having an average particle size of 0.001-0.05 μm in a wt. ratio of the former particles to the latter particles of (20:1)-(20:500), a dispersion medium, and if necessary, based on 20 pts.wt. coating film reinforcing particles, 1-50 pts.wt. oxide particles (a silica sol, an alumina sol, or the like) having an average particle size of 0.002-0.2 μm and/or 0.2-20 pts.wt. neutralization product of polyphosphoric acid and/or polycarboxylic acid with a basic organic compound. |
