Super glue, also known as 502 glue, is an α-cyanoacrylate instant glue that can quickly polymerize and cure when exposed to trace amounts of water at room temperature. It has the characteristics of super strong adhesion, fast curing, and wide application.
Ingredient | Function |
Ethyl α-cyanoacrylate (ECA) | Main monomer, quickly polymerizes into a colloidal structure |
Stabilizer (e.g., p-benzoquinone HQ) | Inhibit monomer self-polymerization and control storage stability |
Retarder (e.g., thiol) | Control polymerization rate and improve operation safety |
Initiator (e.g., quaternary ammonium salt) | Adjust reactivity and accelerate tack time (optional) |
Anti-aging agent, plasticizer (optional) | Improve film flexibility and environmental durability |
Dehydration treatment (must be performed) | Ensure low water content through vacuum drying/molecular sieve |
Equipment | Function |
Reactor | Mainly used for cyanocrylate monomer synthesis reaction, with strict temperature control and vacuum system |
Vacuum degassing system | Remove trace water and impurities in the reaction system to ensure product stability |
Temperature control system | Control the reaction at a suitable temperature to avoid polymerization caused by high temperature |
Precision filling machine (explosion-proof type) | Suitable for filling super glue in small bottles (0.5g-50g), with anti-adhesion device |
Drying system/nitrogen protection system | Used to reduce the effect of moisture on the activity of glue and extend the storage period |