Different silane coupling agents have different functional roles

There are many types of silane coupling agents, including general formula silane coupling agents, silicones, rubber elastic wear-resistant agents, and rubber additives. The different Y groups in silane coupling agents result in different types of polymers suitable for coupling agents. This is because the Y group has selectivity in the reaction of polymers. For example, silane coupling agents containing ethylene and methacryloyloxy groups are particularly effective for unsaturated polyester resins and acrylic resins.

The reason is that the unsaturated double bonds in the coupling agent and the resin undergo chemical reactions under the action of silane coupling agents, silicones, rubber elastic wear-resistant agents, and rubber additives as initiators and promoters. However, coupling agents containing these two functional groups have limited effectiveness when used for epoxy resins and phenolic resins, as the double bonds in the coupling agent do not participate in the curing reaction of epoxy resins and phenolic resins.

However, silane coupling agents with epoxy groups are particularly effective for epoxy resins, and because epoxy groups can react with hydroxyl groups in unsaturated polyesters, silane containing epoxy groups is also suitable for unsaturated polyesters; And silane coupling agents containing amino groups are effective for resins such as epoxy, phenolic, melamine, polyurethane, etc.

Silane coupling agents containing - SH include silane coupling agents, silicones, rubber elastic wear-resistant agents, and rubber additives. Silane coupling agents are widely used in the rubber industry.