Bis(trimethoxysilylpropyl)amine, commonly known as BTMSPA (CAS.NO: 82985-35-1), is a highly versatile and essential organosilane compound. Characterized by its unique bifunctional structure, this yellowish clear liquid acts as a powerful coupling agent, forming robust and durable bonds between diverse organic and inorganic materials. With a molecular formula of C12H31NO6Si2 and a molecular weight of 341.55 g/mol, BTMSPA is engineered to significantly enhance the performance and longevity of various advanced materials. Its exceptional purity, typically above 99.0%, along with consistent physical properties such as a density of 1.04 g/mL, a boiling point of approximately 152°C at 4 mmHg, and a flash point of about 113°C, make it an indispensable component in numerous industrial applications.

The efficacy of Bis(trimethoxysilylpropyl)amine stems from its dual functionality. It possesses two trimethoxysilyl groups that readily hydrolyze in the presence of moisture, forming silanol groups. These silanol groups then form stable condensation products, creating strong siloxane bonds with siliceous surfaces and other metal oxides, including those of aluminum, zirconium, tin, titanium, and nickel. Concurrently, its secondary amine group interacts effectively with organic materials, engaging in mechanisms such as hydrogen bonding or covalent bond formation. This dual-action capability creates a strong chemical bridge, fostering the formation of stable hybrid materials and significantly enhancing interfacial adhesion.

The application of BTMSPA leads to a wide array of performance improvements in final products. It dramatically increases the mechanical properties, including flexural strength, tensile strength, impact strength, and modulus of elasticity. Furthermore, it provides superior moisture and corrosion resistance, particularly in challenging environments. The compound also plays a crucial role in improving adhesion between different substrates, optimizing filler dispersion, and leading to a higher degree of filling in composites. Its influence on rheological behavior, such as a reduction in viscosity and promotion of Newtonian behavior, further contributes to manufacturing efficiency and product quality.

Bis(trimethoxysilylpropyl)amine finds extensive utility across a broad spectrum of industries, primarily within the realm of composites, coatings, adhesives, and sealants (C.A.S.E.).

In composites, BTMSPA is widely employed in glass fiber and glass fabric applications as a size constituent or finish, greatly enhancing the integrity and durability of the material. It serves as an essential additive to phenolic resin binders in mineral fiber insulating materials and abrasives, bolstering their performance. Moreover, it is a key additive in phenolic, furane, and melamine resins used in foundry applications. Its role extends to mineral-filled polymers and Halogen-Free Flame Retardant (HFFR) cables, where it ensures better integration of fillers.

For surface treatment and protective coatings, BTMSPA acts as an effective pretreatment agent for fillers and pigments, ensuring uniform dispersion and improved material characteristics. In paints and coatings, it is invaluable for improving adhesion to the substrate, preventing delamination and enhancing the longevity of the finish. It is also utilized in metal primers and is particularly effective in advanced corrosion protection systems for metals like aluminum and steel, especially when formulated in water-based mixtures, offering an environmentally benign alternative to traditional chromate treatments.

Beyond these, BTMSPA is vital in sealants and adhesives, serving as both a primer and an additive to boost bonding strength and hydrolytic stability. It has also found specialized applications, such as in the formulation of optical fiber coatings and in dental composites, where it can be incorporated with other silanes like (3-Acryloxypropyl)trimethoxysilane to increase strength and hydrolytic stability.

The synthesis of Bis(trimethoxysilylpropyl)amine typically involves a conventional condensation reaction between aminopropyltrimethoxysilane and chloropropyltrimethoxysilane, ensuring high purity and controlled molecular structure. Advancements in synthesis include catalyzed hydrolytic condensation and greener, solvent-free approaches like microwave-assisted synthesis and ball milling, highlighting a commitment to efficiency and environmental responsibility in production.

As a leading manufacturer of high-quality specialty chemicals, we are dedicated to providing premium Bis(trimethoxysilylpropyl)amine (BTMSPA) that adheres to stringent quality controls and industry standards. For businesses seeking a reliable supplier of this versatile silane coupling agent, we offer competitive price options and flexible packaging solutions tailored to specific requirements, including 200 kg drums and customized quantities. To buy or purchase this advanced material, and to explore how BTMSPA can elevate your product performance and optimize your formulations, we encourage you to contact us for detailed information and support.