Bis[3-(Trimethoxysilyl)propyl]amine: Properties and Applications

Bis[3-(trimethoxysilyl)propyl]amine, also known as Dynasylan 1122, is an organosilane compound with the molecular formula C12H31NO6Si2. It is a clear, colorless liquid with a boiling point of 280 °C and a density of 1.03 g/cm3 at 25 °C. This compound is soluble in water, alcohols, and common organic solvents and forms stable solutions in polar and non-polar media.

INNO Specialty Chemicals, a leading manufacturer and supplier of organosilanes and other specialty chemicals in China, produces and distributes high-quality Bis[3-(trimethoxysilyl)propyl]amine for various industrial applications. In this article, we will discuss the properties and applications of this versatile compound.

Properties of Bis[3-(Trimethoxysilyl)propyl]amine

Bis[3-(trimethoxysilyl)propyl]amine has several unique properties that make it a valuable ingredient in many industrial processes. Firstly, it has a bifunctional structure that contains both amino and methoxysilyl groups. This dual functionality allows it to crosslink with both organic and inorganic substrates, making it an effective coupling agent, adhesion promoter, and surface modifier.

Secondly, the methoxysilyl groups on the molecule can hydrolyze in the presence of moisture to form silanol groups. These silanols can then condense with other silanol groups or react with the substrate surface to form a stable siloxane bond. This process, known as silanization, can improve the wetting, adhesion, and compatibility of the substrate with other materials.

Thirdly, Bis[3-(trimethoxysilyl)propyl]amine has a relatively long carbon chain that provides flexibility and allows it to penetrate into the substrate surface. This property makes it useful as a crosslinking agent for polymers, coatings, and adhesives, as well as a modifier for glass, ceramics, and metals.

Applications of Bis[3-(Trimethoxysilyl)propyl]amine

The unique properties of Bis[3-(trimethoxysilyl)propyl]amine make it a versatile compound that finds applications in a wide range of industries. Here are some examples of its uses:

1. Adhesion Promoter

Bis[3-(trimethoxysilyl)propyl]amine is an effective adhesion promoter for various substrates, including glass, metals, plastics, and composites. It can improve the bonding strength and durability of adhesives, sealants, and coatings by forming a siloxane bond between the substrate and the adhesive. It can also enhance the wetting and spreading of coatings on the substrate surface.

2. Coupling Agent

Bis[3-(trimethoxysilyl)propyl]amine is a useful coupling agent for reinforcing fillers in rubber, plastics, and composites. It can improve the dispersion, wetting, and bonding of the filler particles with the matrix polymer, resulting in higher mechanical properties, such as tensile strength, tear resistance, and abrasion resistance.

3. Surface Modifier

Bis[3-(trimethoxysilyl)propyl]amine can modify the surface properties of various materials, such as glass, ceramics, metals, and textiles. It can impart hydrophobicity, oleophobicity, or other functional groups to the surface, depending on the nature of the substrate and the reaction conditions. This property makes it useful in applications such as anti-fouling, self-cleaning, and anti-corrosion coatings.

4. Crosslinking Agent

Bis[3-(trimethoxysilyl)propyl]amine can crosslink with various polymers, such as polyurethane, epoxy, and acrylic resins. This property makes it useful as a curing agent, crosslinking agent, or chain extender in coatings, adhesives, and sealants. It can improve the mechanical properties, chemical resistance, and durability of the cured products.

Conclusion

Bis[3-(trimethoxysilyl)propyl]amine is a versatile organosilane compound that has unique properties, such as bifunctionality, hydrolyzability, and flexibility. These properties make it a valuable ingredient in many industrial processes, such as adhesion promotion, coupling, surface modification, and crosslinking. INNO Specialty Chemicals is a leading manufacturer and supplier of high-quality Bis[3-(trimethoxysilyl)propyl]amine and other organosilanes in China. Contact us for more information about our products and services.

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