Silane Coupling Agent

Alkyl silane is a type of organosilicon surface‑modifying material. It contains alkyl hydrophobic groups and hydrolyzable alkoxy groups. It can form hydrophobic protective layers on the surface of inorganic powders and substrates, reduce water absorption, improve water resistance, weather resistance and anti‑fouling performance, and enhance compatibility between inorganic fillers and organic resins. It features stable quality and fits various industrial formulations for building protection, composite materials and coatings

Siloxane coupling agents contain both hydrolyzable siloxane groups and organic functional groups. Acting as interfacial bridge between inorganic and organic phases, they activate and modify surfaces of inorganic powders, fillers and glass fibers. They improve wetting & dispersion of fillers in resin matrix, enhance mechanical strength, water resistance and anti‑aging performance of composites, and reduce system viscosity, widely used in rubber‑plastic, coating and composite material formulations.

Silicate ester coupling agent is a silicon‑based alternative to titanate coupling agents. It contains hydrolyzable silicate ester groups for surface modification of inorganic powder fillers. It reduces oil‑absorption value of powders, improves dispersion and compatibility of fillers in non‑polar resins such as polyolefin and rubber, optimizes processing fluidity and mechanical properties of finished products, and delivers excellent thermal stability for high‑temperature processing systems.

Ureido silane coupling agent contains ureido functional groups and hydrolyzable alkoxy groups. It provides excellent polar‑interface bonding capacity. It modifies surfaces of inorganic fillers and glass fibers, greatly improving adhesion strength between fillers and polar resins such as epoxy, phenolic and polyurethane. It enhances hot‑humid resistance, peel strength and impact resistance of composites. With good hydrolysis stability, it fits applications requiring high weathering and moisture resistance.

Amino silane is one of the most widely‑used functional silane coupling agents. It contains active amino groups and hydrolyzable alkoxy groups, acting as an interfacial bridge between inorganic and organic phases. It modifies inorganic fillers and glass fibers, greatly improving wetting and dispersion in epoxy, phenolic, nylon and other resins. It enhances bonding strength, mechanical properties and hot‑humid resistance of composites with high reactivity for various industrial formulations.

Isocyanate‑functional silane coupling agent contains highly reactive isocyanate groups and hydrolyzable alkoxy groups, which can chemically react with hydroxyl, amino and other functional groups. It modifies surfaces of inorganic fillers and glass fibers, greatly improving interfacial adhesion between fillers and polyurethane, epoxy, phenolic resins. It enhances mechanical strength, hot‑humid resistance and hydrolysis resistance of composites, featuring high reactivity for high‑performance composite systems.

Phenyl Silane Coupling Agent Series is a high-performance silane coupling agent with phenyl functional groups in its molecular structure. It features excellent heat resistance, UV aging resistance and anti-yellowing performance. It can effectively improve the interfacial compatibility between inorganic fillers and aromatic & general organic resins, enhancing dispersion, bonding strength and long-term weather stability of the system.

Piperazino silane coupling agent contains a piperazine dual-nitrogen heterocyclic structure and hydrolyzable alkoxy groups, featuring dual-amino reactivity. It delivers excellent interfacial bonding capacity for inorganic fillers, glass fibers and metal substrates. It significantly improves compatibility and adhesion strength between fillers and resins such as epoxy, phenolic, polyurethane and nylon, and enhances hot-humid resistance, impact resistance and long-term aging performance of composites. With high reactivity, it fits high-performance industrial formulations.

Epoxy Silane Coupling Agent Series contains epoxy active groups and hydrolyzable alkoxy groups in the molecule. It can react with inorganic substrates as well as organic resins with carboxyl, amino and epoxy groups. It effectively improves the interfacial bonding force between inorganic fillers, glass fibers and resin matrix, enhancing bonding strength, water resistance, hydrothermal stability and electrical insulation of the system, with wide compatibility and good storage stability.

Vinyl Silane Coupling Agent Series contains polymerizable vinyl groups and hydrolyzable alkoxy groups. It can participate in the cross-linking reaction of polyolefins and rubbers, and bond with hydroxyl groups on the surface of inorganic fillers and glass fibers. It effectively improves the interfacial compatibility between inorganic phase, polyolefins and elastomers, and enhances mechanical strength, moisture resistance and electrical properties of finished products, suitable for cross-linking modification systems.

Methacryloxy silane coupling agent contains methacryloxy groups capable of free-radical polymerization and hydrolyzable alkoxy groups. It bonds with hydroxyl groups on the surface of inorganic fillers and glass fibers, and participates in the polymerization of acrylic resins, unsaturated polyesters, polyolefins and other organic systems. It effectively improves interfacial bonding between inorganic phase and organic resins, and enhances mechanical strength, water resistance, weather resistance and electrical insulation of composites. With high reactivity, it fits UV-curing, thermal-curing and free-radical polymerization systems.

Sulfhydryl Silane Coupling Agent Series contains sulfhydryl functional groups and hydrolyzable alkoxy groups. The sulfhydryl group can undergo vulcanization or addition reaction with rubber and thiol resins, while alkoxy groups can bond with hydroxyl groups on the surface of inorganic fillers, metals and glass. It significantly improves the interfacial adhesion between inorganic powder, glass fiber and rubber systems, enhances mechanical properties, wear resistance and filler dispersion of products, and improves anti-corrosion adhesion on metals.