Influencing Factors

Factors affecting the curing of instant adhesive

Factors Affecting the Performance of Instant Adhesive

Relationship between curing speed and accelerator:

When the bonding gap between substrates is too large, or the temperature is too low resulting in too slow curing speed, using an accelerator on the substrate surface can increase the adhesive's curing speed. However, this treatment will make the cured adhesive layer brittle, thereby reducing the final bonding strength. Therefore, it is recommended to conduct experiments according to actual requirements to determine the actual bonding effect.

Relationship between bonding strength and bonding gap:

The bonding gap between substrates will affect the adhesive bonding. The smaller the bonding gap, the higher the density, and the higher the bonding strength. As the bonding gap increases, the strength will decrease. When the gap between materials is too large or the material surface is porous, adhesives with higher viscosity can be used.

Relationship between bonding strength and cleanliness of material surface: 

The higher the cleanliness of the material surface, the higher the bonding strength. If there is oil or dust on the material surface, it will affect the molecular cohesion during the adhesive curing process, leading to a decrease in bonding strength. Therefore, before bonding on unclean surfaces, pre-treatment should be carried out. Organic solvents such as acetone, acetonitrile, and anhydrous ethanol can be used for cleaning before bonding operations.