Bis-(3-trimethoxysilylpropyl)amine |Crosslinking

A-1170 Bis-(3-trimethoxysilylpropyl)amine is a diamino silane coupling agent, chemically known as bis(3-trimethoxysilylpropyl)amine, CAS No. 82985-35-1. It is a low-viscosity, light yellow, clear and transparent liquid with a slight ammoniacal odor and has the molecular formula C12H31NO6Si2. Its unique secondary amine structure provides milder and delayed reactivity, resulting in enhanced stability. A-1170 can serve as a crosslinking agent for amine-terminated or modified resins such as epoxy and polyurethane resins, imparting moisture-curing properties to the polymers.

Basic Information:

● Chemical Name: Bis-(3-trimethoxysilylpropyl)amine

● Molecular Formula: C12H31NO6Si2

● Structural Formula:

● Molecular Weight: 341.55

● CAS No.: 82985-35-1

Equivalent International Product Numbers:

● Momentive (USA): A-1170

● Evonik (Germany): Evonik 1124

Physical Properties:

● Appearance: Clear liquid

● Color: Colorless to light yellow

● Purity, %: ≥ 98%

● Specific Gravity (25°C): 1.04

● Boiling Point (°C): 285

● Refractive Index (nD at 25°C): 1.432

● Flash Point (Closed Cup, °C): 110

Key Properties:

● Excellent crosslinking capability

● Improved adhesion to substrates

● Enhanced flexural strength, tensile strength, impact resistance, and elastic modulus

● Improved water resistance and corrosion resistance, with excellent durability under high temperature and high humidity conditions

● Enhanced wetting performance and improved rheological properties

● Better filler dispersion, enabling higher filler loading levels

Applications:

1. Can be used as an adhesion promoter in the coatings and sealants industries.

2. Suitable as a coupling agent in foundry and casting applications to improve mechanical properties.

3. Can function as a surface protector and adhesion promoter in the formulation of metal silanization surface treatment agents.

4. Applicable to thermoplastic resins such as epoxy, polyurethane, phenolic, melamine, polyimide, and furan resins, improving filler compatibility and enhancing resin adhesion to inorganic substrates.

5. As a diamino silane, it can act as a water-based coupling agent, promoting adhesion between different materials and facilitating the formation of hybrid materials.

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, net weight 200 kg per drum. Other packaging specifications can be provided upon request.

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