| abstract |
The invention discloses the preparation and application of a high-hardness wear-resistant coating. The coating is two-component: component A is composed of epoxy resin, nano-scale gas phase method aluminum oxide and nano-silicon dioxide through three rolls. After kneading by machine, a solvent is added to dissolve and synthesize, and component B is dissolved and synthesized by silicone resin and solvent; the selected solvent is one or two mixed solvents of xylene, anhydrous ethanol and PM; The mass ratio of silica to the total amount of resin is 8-15:4-8:100, respectively. A and B are mixed and stirred evenly according to the activity ratio and are suitable for the spraying process. After spraying on the glass substrate, the surface is dry at 70°C for 1-2h, and cured at 120-150°C for 2-4h. The formed organic-inorganic composite coating has a pencil hardness of up to More than 5H, the load of 1Kg steel wool wears more than 10,000 times. |