Preparation of high-reflection coatings: ink oil and low melting point glass powder, Lide powder, titanium dioxide and so on in a certain proportion of mixing, by stirring, grinding so that the powdery pigment in the ink oil evenly dispersed, forming a moderate viscosity ink, and then directly using screen printing on the glass substate printing; First a variety of solid raw materials finely grinding through 300 mesh sieve, and then acrylic resin, moisturizer, dispersant, defoamer, leveling agent, emulsifier, thickener mixture stirred evenly and then stirred evenly at high speed. Leave to rest for 4 h.
(1) The effect of the number of mesh on the reflectivity, the reflectivity of the coating increases with the increase of the number of the mesh when the number of mesh is 160, the reflectivity appears the largest and then decreases with the increase of the number of mesh. The number of mesh items is controlled at 140 to 180 for the best.
(2) The effect of curing temperature on reflectivity, the reflectivity of the coating increases with the increase of curing temperature when the curing temperature is 220 degrees C, the reflectivity appears the maximum value and then decreases with the increase of curing temperature. Curing temperature control is better at 200 to 250 degrees C.
(3) The effect of tempering temperature on reflectivity, the reflectivity of coating increases with the increase of tempering temperature, when the tempering temperature is 720 degrees C, the reflectivity is the largest and then decreases with the increase of tempering temperature. It is advisable to control the tempering temperature at 700 to 730 degrees C.
