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  • Aminopropyltriethoxysilane AMEO


    Chemical name: 3-Aminopropyltriethoxysilane

    Molecular construction:H2N(CH2)3Si(OC2H5)3

    Product article: IOTA-50


    Aminopropyltriethoxysilane(AMEO) is a versatile amino-functional coupling agent used over a broad range of applications to provide superior bonds between inorganic substrates and organic polymers. The silicon-containing portion of the molecule provides strong bonding to substrates. The primary amine function reacts with a wide array of thermoset, thermoplastic, and elastomeric materials.

    Physical Properties:

    Chemical Name: 3-Aminopropyltriethoxysilane

    Formula: C9H23N2O3Si

    Molecular Weight: 221.3

    Appearance: Colorless transparent liquid

    Density 25/25℃: 0.9450-0.9550

    Boiling Point: 215℃(760mmHg)

    Refractive Index: 1.420(25℃)

    Viscosity 25℃: 2 cSt

    Flash Point: 96℃

    CAS No.: 919-30-2

    EINECS No.: 213-048-4

    Min. Purity: 97.0%


    3-Aminopropyltriethoxysilane is completely and immediately soluble in water (with reaction), alcohol, and aromatic and aliphatic hydrocarbons. Ketones are not recommended as diluents.


    3-Aminopropyltriethoxysilane is applied in plastic products (including cables, glassfiber-reinforcement plastics etc.), rubber products, adhesives, coatings, pigments dispersion, inks, magnetic materials (plastic magnet and rubber magnet), metallic casting resins and resins concrete, etc. 

    3-Aminopropyltriethoxysilane maximizes the physical and electrical properties of mineral-filled phenolics, epoxies, polyamides, polybutylene terephthalate, and a host of other thermoset and thermoplastic composites. Filler wetting and dispersibility in the polymer matrix are also improved. 

    3-Aminopropyltriethoxysilane improves adhesion between magnetic poIOTAer and organic resins and dispersion of magnetic poIOTAer inorganic resins. Also these magnetic appliances attain higher magnetic orientation and excellent magnetic properties, higher mechanical strength, good processability, excellent weathering resistance.

    In glass-reinforced thermoset plastics, 3-Aminopropyltriethoxysilane enhances the flexural, compressive, and interlaminar shear strengths before and after exposure to humidity. 3-Aminopropyltriethoxysilane greatly improves wet electrical properties.

    With nitrile, polysulfide, expoxy, urethane, and adhesives and sealants, 3-Aminopropyltriethoxysilane improves pigment dispersion and maximizes adhesion to glass, aluminum, and steel.

    When 3-Aminopropyltriethoxysilane is used, glass-reinforced thermoplastics, polyamides, polyesters, and polycarbonates exhibit increased flexural and tensile strengths before and after wet exposure.

    In glass fiber and mineral wool insulation, as a phenolics resin binder additive, IOTA-50 imparts moisture resistance and allows recovery after compression.

    In shell molding foundry applications, IOTA-50 strengthens the bond between the phenolics binder and foundry sand.

    In grinding wheels, IOTA-50 promotes an improved, water-resistant bond between the abrasive grit and phenolics resin binder.

    3-Aminopropyltriethoxysilane is an excellent adhesion prompter in urethane, epoxy, and acrylic latex coatings, adhesives, and sealants. 

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