Principles Of Performance Of Anti-clogging Coating On Dry Abrasive Paper
Super-coated dry sanding paper is coated with an extra layer of anti-blocking material on the surface of silicon carbide or brown corundum sandpaper, also known as anti-blocking sandpaper. This product has the advantages of desquamation, and heat dissipation is not easy to clog during use, and is especially suitable for dry grinding and polishing of soft materials such as wood, paint, and soft metals. Compared with different sandpapers, its working principle is to use the coated unique anti-blocking material to generate a lot of heat energy during grinding, so that the heat-absorbing substance inside undergoes a phase change, changing from solid to liquid to absorbing heat, thereby reducing the Working surface temperature. After the phase change of the endothermic substance, a smooth film is formed on the surface of the sandpaper, which ultimately enhances the sandpaper's wear resistance and grinding efficiency.
The structure of the super-coated sandpaper coating consists of three pieces; the first piece is a film-forming substance, whose effect is to firmly attach the coating to the surface to be coated to form a continuous film. The second piece is a heat absorber, whose function is to absorb heat and reduce the temperature of the working surface. The third piece is a filler, whose function is to improve the performance of the coating and reduce costs, thereby increasing the amount of grinding. The heat-absorbing agent changes from a solid state to a liquid state to absorb heat, and the adhesive layer is not easily damaged. In soft adhesive, the heat generated by grinding will make the film softer, which is easy to cause clogging, and the debris generated during the grinding process cannot be removed in time so the sandpaper loses its grinding ability, and the film is properly added After increasing the hardness, it not only reduces the clogging phenomenon but also prolongs the grinding time of the sandpaper, so the grinding amount becomes larger.
