Jak zlepšit kvalitu produktů tavného lepidla?

2021/03/29

Vzorectavné lepidlo is not static, and some raw materials can be used to improve the quality of tavné lepidlo products.

1. Mazivo

Appropriate addition of lubricants in tavné lepidlos can improve the release performance of the plastic during heating and molding, and improve the surface finish of the product. But this kind of lubricant should not be added too much, so as not to affect the viscosity of the product. Commonly used lubricants include stearic acid, salt, paraffin wax, synthetic wax and so on.

2. Barvivo

Colorants are used to change the color of tavné lepidlos. The main purpose is to beautify and decorate. About 80% of plastic products are colored to produce the final product.

3. Balení

Adding fillers to the tavné lepidlo can reduce the shrinkage of the tavné lepidlo, increase the viscosity, increase the gap-filling property, and reduce the cost at the same time. Adding too much filler will affect the fluidity of the tavné lepidlo and reduce its adhesion. Common fillers are calcium carbonate, barium sulfate and clay.

4. Flameretardant

The main component of tavné lepidlo is polyurethane resin, which is combustible. We can improve the flame retardancy of tavné lepidlo by adding flame retardant in the middle. Most plastics containing flame retardants are self-extinguishing or burn very slowly. Commonly used flame retardants are antimony dioxide, aluminum boron compounds, tetrachlorophthalic anhydride and so on.