Experts Analyze The Properties Of Silane Coupling Agent

- Jul 10, 2018 -

1. In the structure of the adhesive bonding of metal and nonmetal, if use silane tackifier, can with metal oxide condensation, or with another silane alcohol condensation, thus make the silicon atoms and gum surfaces contact tightly. For example, adding silane into nitrile phenolic structure glue as viscosifier can improve the adhesive strength significantly.

2. Silane adhesive has special function in bonding rubber with other materials. It obviously improves the bonding strength of rubber and other materials. For example, when glass is bonded with polyurethane rubber, if silane is not used as treatment agent, the peel strength of the glue is 0.224 kg/cm 2, and 7.26 kg/cm 2 if silane is added.

3. Adhesion problems that could not be solved with general adhesives can sometimes be solved with silane Silane Coupling agents. For example, aluminum and polyethylene, silicon rubber and metal, silicon rubber and organic glass can be selected according to the theory of chemical bonds, and the corresponding silane Silane Coupling agent can be satisfactorily solved. For example, polyethylene can be bonded to aluminum foil by using ethylene tert butylsilane (Y - 4310). The tensile strength of silicone rubber and metal can reach 21.6 ~ 22.4 kg/cm 2 by using butadienyl triethoxy silane.

General adhesives or resins combined with Silane Coupling agent can not only improve the adhesive strength, but also increase the water resistance and durability of the adhesive force. For example, although polyurethane and epoxy resin have high adhesion force to many materials, their durability and water resistance are not ideal. The performance of silane - Silane Coupling agent can be improved significantly.