3-(2-Aminoethylamino)propyltriethoxysilane: A Key Ingredient in Adhesives and Coatings
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3-(2-Aminoethylamino)propyltriethoxysilane: A Key Ingredient in Adhesives and Coatings
3-(2-Aminoethylamino)propyltriethoxysilane, also known as N-(3-Triethoxysilylpropyl)ethylenediamine or N-[3-(Triethoxysilyl)propyl]-1,2-ethanediamine, is a versatile chemical compound that has found a wide range of applications in the fields of adhesives, coatings, and surface modification. As a silane coupling agent, it is used to bind organic and inorganic materials together, improving their adhesion, durability, and resistance to moisture, heat, and chemicals.
Manufactured and supplied by INNO Specialty Chemicals, a leading producer of silanes, silicones, and other specialty chemicals based in China, 3-(2-Aminoethylamino)propyltriethoxysilane is a high-purity, colorless liquid with a molecular weight of 317.5 g/mol, a boiling point of 218-220°C, and a density of 0.997 g/cm3 at 25°C. It is soluble in alcohols, ketones, and esters, but insoluble in water and hydrocarbons. Its chemical formula is C11H28N2O3Si, and its CAS number is 919-30-2.
The key properties of 3-(2-Aminoethylamino)propyltriethoxysilane that make it useful in various applications are its amino and triethoxysilyl groups. The amino group (-NH2) is a reactive site that can form hydrogen bonds and coordinate with metal ions, while the triethoxysilyl group (-Si(OC2H5)3) is a hydrolyzable site that can react with water and form silanol groups (-Si-OH). These silanol groups can then condense with other silanol or hydroxyl groups on the surface of substrates, such as glass, metal, ceramics, or polymers, to form a covalent bond or a crosslinked network.
In adhesives, 3-(2-Aminoethylamino)propyltriethoxysilane can serve as a coupling agent between the organic binder and the inorganic filler or substrate, such as silica, alumina, or titanium dioxide. By improving the wetting and spreading of the adhesive, it can enhance the interfacial adhesion and the mechanical strength of the bond. It can also reduce the shrinkage and the moisture sensitivity of the adhesive, as well as increase its thermal stability and chemical resistance.
In coatings, 3-(2-Aminoethylamino)propyltriethoxysilane can act as a surface modifier or a crosslinker. By applying a thin layer of the silane onto the substrate or mixing it into the coating formulation, it can improve the adhesion, the abrasion resistance, the scratch resistance, and the water repellency of the coating. It can also enhance the gloss, the color retention, and the weatherability of the coating, especially in harsh environments. Furthermore, by reacting with the functional groups in the coating, such as epoxy, polyester, or polyurethane, it can form a network of siloxane bonds that can reinforce the coating and prevent its degradation.
Other applications of 3-(2-Aminoethylamino)propyltriethoxysilane include surface treatment of fibers, fillers, and composites, as well as synthesis of functional materials, such as catalysts, sensors, and biomedical devices. Its unique combination of amino and triethoxysilyl groups makes it a valuable tool for enhancing the performance and the durability of various products.
In conclusion, 3-(2-Aminoethylamino)propyltriethoxysilane is a versatile and important chemical compound that has a wide range of applications in the fields of adhesives, coatings, and surface modification. Its unique properties as a silane coupling agent make it a valuable ingredient for improving the adhesion, the durability, and the resistance of various materials to moisture, heat, and chemicals. As a leading manufacturer and supplier of silanes, INNO Specialty Chemicals is committed to providing high-quality and cost-effective solutions for its customers.
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