Preparation and performance of room temperature curing silicone/polyurethane Coatings

"Preparation and Performance Research of Normal Temperature Curing Silicone/Polyurethane High Temperature Resistant Coating" introduced a simple method for preparing normal temperature curing silicone/polyurethane high temperature resistant coating. The authors directly used silicone resin as the hydroxyl group-containing component, adding Heat-resistant pigments and fillers were used to prepare silicone/polyurethane high-temperature-resistant coatings that can be cured at room temperature. The experiment process used a constant temperature heating magnetic stirrer, SEM-505 scanning electron microscope, QGZ-A linear paint film drying time Tester, QCJ paint film impactor, QFH-A paint film scratcher, QZM-1 model Cone mill, QBY-II pendulum-type paint film Hardness Tester and other paint film testing instruments are used to measure the performance of pigments and fillers on the coating film.

Experimental conclusion surface: Through the discussion of various factors affecting the performance of the primer, it is believed that the permeability of the wall, the bonding strength and the sealing performance of the solvent-based primer are better than that of the water-based primer, but the solvent-based primer is not environmentally friendly. In the selection of base materials for water-based paints, cationic emulsion primers and organic and inorganic composite emulsion primers have good permeability, bonding strength and alkali-resistant sealing performance on the wall. There is an influence, and the performance of the primer with PVC content of about 15% is better.