CN-A550 3-Aminopropyltriethoxysilane

Product description
Structural formula:

Molecular formula:C₉H₂₃NO₃Si
Molecular weight:221.4
CAS No.:919-30-2
Chemical name:3-Aminopropyltriethoxysilane
Characteristic
CN-A550 is a bifunctional silane with active amino groups and hydrolyzable inorganic ethoxysilyl groups. The dual nature of its reaction, it can organically bond inorganic materials (such as glass, metals, fillers) and organic polymers (such as thermoplastics, thermosetting plastics or elastomers). It is used as a tackifier, organic / inorganic interface surface modifier (corrosion protection, primer) or silicone polymer or crosslinking agent (moisture crosslinking polymer).
It is a colorless and transparent low-viscosity liquid with obvious ammonia-odor, soluble alcohol, aliphatic or aromatic hydrocarbons. In addition, it can also be completely dissolved in water and immediately react with water.
Physical and chemical data Note: The above data is for reference only and cannot be formulated as a technical specification.
Reaction properties
CN-A550 in the presence of water, ethoxy groups will be hydrolyzed to form reactive silanol groups, can form a bond with the surface of a variety of inorganic substrates.
The hydrolysis of CN-A550 can be catalyzed by organic acids such as acetic acid.
Suitable inorganic materials like glass, fiberglass, glass wool, mineral wool, silica, sand, mica, aluminum hydroxide, cristobalite, wollastonite, kaolin, talc, other silicate fillers, metal oxides and metals.
Resins that can be used in CN-A550 include epoxy resin, phenolic resin, furan-resin, melamine, polyurethane, PA, PBT, PC, EVA, modified PP, polyvinyl butyral, PAVC, PVC, PS, elastic rubber, Acrylic resin and silicone resin.
CN-A550 can react in ketone or ester solvents. The silane-itself or the silanized substrate reacts with carbon dioxide to form the corresponding carbonate or carbamate. Modification of materials by addition reaction with suitable monomers or polymers (such as isocyanate).
Applications
Application of CN-A550 in coatings, adhesives, sealants:
CN-A550 is a good adhesion promoter in acrylic paints, adhesives and sealants. It is an adhesive and sealant with polysulfide, urethane, room temperature vulcanized silicone rubber, epoxy resin, nitrile rubber, and phenolic resin. Used in glass, aluminum and steel.
Glass fiber reinforced resin system:
In glass fiber reinforced thermosetting plastics, CN-A550 can greatly improve the physical and mechanical properties of wet and dry flexural strength, compressive strength, shear strength and wet electrical properties of plastics.
Glass fiber and mineral wool insulation:
Used as an additive for phenolic resin adhesives, CN-A550 can give it excellent moisture resistance and elastic recovery rate.
Mineral filled resin system:
CN-A550 can help maximize the physical and electrical properties of mineral-filled phenolic resins, epoxy resins, polyamides, polyterephthalic acid and many other thermosetting and thermoplastic composite materials. The wetting and dispersion of fillers in the polymer matrix is also generally improved.
Application and foundry industry:
When the shell is molded, CN-A550 improves the strength of the molding sand and reduces the amount of gas generated.
Grinding wheel:
In the manufacture of grinding wheels, CN-A550 helps to improve the adhesion and water resistance of phenolic resin in wear-resistant self-hardening sand.