Research On Supercoating Of Abrasive Sandpaper

In order to better adapt the material to the abrasive material, when grinding, it is suitable for grinding with softer materials, such as sandpaper, the same is true for the selection of abrasive belts, choose to coat special anti-clogging materials, use heat absorption Based on the phase transition principle of the agent, the sandpaper super-coating slurry has been developed. The main knowledge is as follows:

 

 

1. Through the grinding experiment of wood, the research shows that the composite endothermic agent is better than the single endothermic agent, and has a wider endothermic area.

 

 

2. Polyurethane latex is used as the super coat slurry adhesive, and melamine-formaldehyde resin is used as the crosslinking agent.

 

 

3. The research found that when the film pencil hardness is 3H~4H and the dosage is about 27%, the grinding amount of the sandpaper super-coating is the largest.

 

 

4. When the amount of compound endothermic agent (1#:2#=5:5) used in the sandpaper super-coating is about 32%, the total grinding amount reaches 27g, and the differential thermal analysis DTA proves that the endothermic peak temperature is 148°C.

At the same time, studies have shown that talcum powder is the best lubricant for abrasive sandpaper super coating, and the dosage is 27%.