N-Phenyl-γ-aminopropyltrimethoxysilane

N-Phenyl-γ-aminopropyltrimethoxysilane (CAS No.: 3068-76-6) is an organosilicon compound with the chemical formula C₁₂H₂₁NO₃Si and a molecular weight of approximately 255.39. It appears as a clear liquid, ranging from colorless to pale yellow at room temperature. Also known as 3-(Phenylamino)propyltrimethoxysilane or N-Phenyl-3-aminopropyltrimethoxysilane, this compound features an aniline group that confers enhanced stability to the reactivity of the amino function. N-Phenyl-γ-aminopropyltrimethoxysilane is primarily used as an adhesion promoter, bonding aid, and additive, playing a significant role in various composite materials and resin systems.

Basic Information:

● Chemical Name: N-Phenyl-γ-aminopropyltrimethoxysilane

● Molecular Formula: C₁₂H₂₁NO₃Si

● Structural Formula:

● Molecular Weight: 255.39

● CAS No.: 3068-76-6

● EINECS No.: 221-328-2

Equivalent Foreign Brands:

● Momentive: Y-9669

● Dow Corning: SZ-6083

● Shin-Etsu (Japan): KBM-573

Physical Properties:

● Appearance: Clear liquid

● Color: Pale yellow

● Purity (%): ≥ 98%

● Specific Gravity (at 25°C): 1.070

● Boiling Point (°C): 309.60

● Refractive Index (nD at 25°C): 1.505

● Flash Point (Closed Cup, °C): 131.29

Key Properties:

● Material Performance Enhancement: Effectively improves mechanical properties, electrical performance, thermal resistance, weatherability, and adhesion of materials.

● Silanization of Metal Surfaces: Widely applied in the silanization treatment of metal surfaces to enhance corrosion resistance and adhesion.

● Coupling Agent for Glass Coatings: Acts as a coupling agent in glass paints, improving adhesion between glass substrates and coating materials.

● Adhesive and Sealant Industry: Significantly enhances the performance and stability of products used in electronic encapsulants, adhesives, and sealants.

Applications:

1. Serves as a coupling agent to promote adhesion between polyurethane, epoxy, acrylic, and phenolic resins and substrates such as glass, metals, glass fibers, and inorganic fillers.

2. Applied in adhesives, sealants, coatings, sizing agents and surface treatments for glass fibers, primers, and foundry sand binders.

3. Improves the high-temperature aging resistance of glass fiber-reinforced phenolic composites.

Handling and Storage:

Store in a sealed container in a cool, well-ventilated, and dry area. Protect from moisture and fire hazards. Packaged in plastic drums, each net weighing 200 kg. Customized packaging options are also available upon request.

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