Coupling agent: A compound that can produce a certain bonding force with polar and non-polar substances at the same time, and is characterized by substances with both polar and non-polar parts of the molecule. Silane coupling agents are commonly used in adhesives.
The role of the coupling agent: increase the intermolecular force of the main resin itself and improve the cohesive strength of the adhesive; Increase the bond between the resin and the bonded object, which plays a certain role in bridging. Different coupling agents have different reaction groups, and different reaction groups have different effects on bonding properties.
