3-Aminopropyl Methyl Diethoxysilane

Silane Coupling Agent KH-902 is an amino-functional silane coupling agent, chemically known as γ-aminopropyl methyl diethoxysilane (CAS No.: 3179-76-8), with the molecular formula C₈H₂₁NO₂Si. KH-902 is a versatile amino-silane coupling agent primarily used to enhance adhesion between inorganic substrates and organic materials, forming strong chemical bonds between inorganic materials and organic polymers. As a surface modifier, silane coupling agent KH-902 is mainly employed to improve interfacial bonding between inorganic fillers (such as glass fibers and mineral fillers) and organic resins, thereby enhancing the performance of composite materials.

Product Description:

● Chemical Name: 3-Aminopropyl Methyl Diethoxysilane

● Molecular Formula: C₈H₂₁NO₂Si

● Structural Formula:

● Molecular Weight: 191.343

● CAS No.: 3179-76-8

● Equivalent Foreign Brands: A-2100 (Union Carbide), Z-6015 (Dow Corning), KBE-904 (Shin-Etsu, Japan)

● Purity: ≥98.0%

Physical Properties:

● Appearance: Colorless transparent liquid

● Density (ρ₂₀), g/cm³: 0.9110 – 0.9210

● Boiling Point, °C: 214

● Refractive Index (n²⁵D): 1.4220 – 1.4320

● Flash Point (Closed Cup), °C: 75.6

● Solubility: Soluble in alcohols; readily hydrolyzable in water

Applications:

1. Adhesion Promoter and Tackifier: Used to improve the bonding strength between organic materials and inorganic substrates.

2. Key Raw Material for Amino-Modified Silicone Oils and Softening Agents: Serves as a crucial intermediate in synthesizing amino-modified silicones and ultra-soft organic silicone finishing agents. Incorporating the amino group into the silicone backbone significantly enhances the mechanical and chemical properties of the resulting organic compounds.

3. Additive in Various Sealant Systems: Helps maintain low modulus while improving the mechanical and electrical properties of the final product.

4. Surface Modifier for Inorganic Powders and Fillers: Used to treat the surface of inorganic fillers and powders to improve their compatibility and dispersion in organic matrices.

Packaging and Storage:

Store in a sealed container in a cool, well-ventilated, and dry place. Protect from moisture and fire hazards. Available in 200 kg drums or IBC totes. Other packaging specifications can be provided upon request.

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