| 摘要 |
<p>The subject of invention is a colour or colour paint for lowering temperature of insolated surfaces as well as a surface or a substrate with the applied colour according to the invention. The invention belongs to technical solutions in building construction, facades and the chemistry of polymer-based paints, more precisely, to the preparation of paints for lowering temperature of sheet metal facades or roofs due to solar radiation on the basis of spectral selectivity. The paint according to the invention is characterised in that the volume content of white pigments in a polymer binder lies between 10 % and 20 %, yet preferentially around 15 %, where TiO2 pigment (pigment white 6) is selected among particle sizes from 150 nm to 600 nm - preferentially about 400 nm - at the contents of 5 % to 20 %, and ZnO pigment (pigment white 4) among particle sizes from 200 nm to 800 nm - preferentially about 600 nm - at the contents between 0 % and 15 %, in that the binder is selected out of the group of acrylic, epoxy, polyurethane, ester, silicone, PVC, PVDF, PVF(F), SP-SI, SP or acrylic-polyurethane binders, and in that at least one dyeing substance is selected among perinone, anthraquinone, phtalocyanine, pyrazolone, azo, azomethine-azo and perylene organic dyeing substances.</p> |
