Silane has been successfully used as a bonding accelerator and surface treatment agent for decades due to its unique structural composition. Now silane has gradually become an indispensable component of coatings, ink systems. Whether as an additive or a separate coating primer, will give paint, ink excellent performance.

Silane is a molecule with two functional groups,

It can be expressed as Y(CH2)nSiX3,

Y represents alkyl, phenyl, vinyl, epoxy, amino, sulfhydryl and other organic functional groups, which are often chemically combined with organic functional groups in coating base resin.

X means chlorine group, methoxy group, ethoxy group, etc. These groups are easily hydrolyzed into sianol and react with oxides or hydroxyl groups on the surface of inorganic materials (glass, silica, metal, clay, etc.) to form stable si-o bonds.

Therefore, through silane coupling agent, "molecular bridge" can be built between the interface of inorganic material and organic material, connecting two materials with completely different properties. The reaction groups of silanol functional groups and silane organic functional groups can determine what role silane plays in the paint system.

Silane in coatings and inks: ------ - improve coating adhesion. ------ improve the durability of coatings. ---- -improve the weather resistance of coating. ------ improve the toughness of coating. ------ significantly reduce the dispersion viscosity of fillers and pigments and improve the dispersibility of pigments

Application of silane in primers the covalent bonds of silicon atoms have the unique ability to bind organic and inorganic materials. The inherent stable structure of silicon oxygen makes it an important component of high-performance paint primers. The application of silane coupling agent in the primer can improve its adhesion, maintain its humidity, chemical properties, uv protection and enhancement. Improve dispersion of filler. Alkoxy silanes are compatible with many organic resins. In fact, silane is a strong polar solvent, and the polymerization of silane affects the compatibility and final properties of polymers. A large number of organic groups that are covalently linked to inorganic alkoxy functional groups on the surfaces of organic polymers and inorganic substances (e.g. pigments, fillers, and glass and metal surfaces). The organic functional groups of silane do the best job of finding the organic polymers that match them. Silane as adhesion promoter when coating contains a small amount of silane coupling solvent, after its coating, silane and migrate to the coating and substrate interface, and the moisture on the surface of inorganic reaction, hydrolysis produce silanol base, and with the substrate surface hydroxyl hydrogen bond or condensation into - Si - M (M) for inorganic surface, at the same time the silane silanol group and the molecular condensation, gathered in the formation of the reticular structure of the membrane covering the surface of the substrate. Silane coupling agent modified coatings adhere well to various inorganic substrates even under water immersion conditions. In the interface layer between lacquer base and substrate, silane interacts with lacquer base to form a network structure of mutual infiltration between silane and substrate, which enhances its cohesion and stability against water erosion, and makes the stress transfer from the substrate with modulus to the lacquer base with low modulus, thus significantly improving the adhesion of substrate.

792 acrylic acid, alkyd resin, epoxy resin, polyester, polyurethane, vinyl primer: 10% solid with isopropanol; Additives: 0.5-3.0% for various coating systems to enhance the adhesion of glass, aluminum and steel surface 570 acrylic acid, alkyd resin, epoxy resin, polyester, polyurethane, vinyl, unsaturated polyester resin primer: diluted to 0.1-0.5% in acidic (ph-4.0) water; Additives: 0.5-3.0% to improve the adhesion of free radical crosslinked resins to inorganic substrates, such as: polyester resin 560 acrylic acid, alkyd resin, epoxy resin, nitrocellulose, phenolic, polyester, polyurethane, vinyl substrates: diluted with isopropyl alcohol to 10% solid content; Additive: 0.5-3.0% used for adhesion enhancement of glass, aluminum and steel surface of various coating systems -171151172 acrylic acid, alkyd resin, epoxy resin, polyester, polyurethane, vinyl used for acrylic coatings and surface treatment of pigments.