Factors affecting the fluidity of hot melt adhesives

2021/06/17

The fluidity of hot melt adhesive has an impact on the quality of the glue and glue. Hot melt adhesives have poor fluidity and can also cause drawing problems or mismatch with mechanical efficiency.

1. Sol temperature;

Hot melt adhesives are very sensitive to temperature, and changes in temperature will change the structure of hot melt adhesives. After slowly heating to a certain temperature, the performance of the hot melt adhesive reaches its best state.

2. Coordination of hot melt adhesive properties and technology;

Adhesives have broad application prospects. In order to meet the requirements of the bonding process, the formula and performance of the hot melt adhesives used in different products must be more or less adjusted. The fluidity of hot melt adhesive is different in different areas. Flow performance is generally related to the penetration of hot melt adhesive

3. The number of adhesives in the hot melt adhesive;

The fluidity of hot melt adhesives is indeed affected by the adhesive. Colloid is not easy to melt because of its high viscosity.

4. the rubber stove contains many impurities.

In order to cope with the frequently used high-density glue, the glue oven is a continuous sol. In the long run, there will be more and more residues in the melting furnace, which will not only reduce the melting efficiency, but will also cause the molten residue to be excessively mixed with the newly melted rubber, which will affect the fluidity and performance of the hot melt adhesive.

5. The rubber outlet is blocked.

When the glue flowing through the outlet channel is blocked, the channel flowing through is not smooth. Hot-adhesive equipment should develop a maintenance plan and regularly maintain, repair and clean its parts to eliminate obstacles in the use of hot-melt adhesives.