Evonik Degussa Dynasylan 3403: A Versatile Silane Coupling Agent
Silane coupling agents are vital components in many industrial applications, particularly in the fields of adhesives, coatings, and composites. They are used to improve the adhesion, wetting, and dispersion of various materials, such as metals, plastics, ceramics, and glass. One of the most popular silane coupling agents is Evonik Degussa Dynasylan 3403, which is known for its versatility, reactivity, and compatibility with a wide range of substrates.
Evonik Degussa Dynasylan 3403 is a clear, low-viscosity liquid that contains a thiol functional group (-SH) and two methoxy groups (-OCH3) attached to a propyl chain. Its chemical formula is CH3O(CH3O)2Si(CH2)3SH, and its molecular weight is 178.3 g/mol. It is also known by other names, such as DOWSIL AY43-062, Shin-Etsu KBM-802, 3-Mercaptopropyl(dimethoxy)silane, and (3-Mercaptopropyl)methyldimethoxysilane.
The primary function of Evonik Degussa Dynasylan 3403 is to act as a coupling agent between organic and inorganic materials, especially those that have polar and nonpolar characteristics. The thiol group can react with metal oxides, such as aluminum, titanium, and zinc, to form covalent bonds and anchor the silane molecule to the surface. The methoxy groups can hydrolyze in the presence of moisture and form silanol (-Si-OH) groups, which can then condense with other silanol or siloxane (-Si-O-Si-) groups to create a crosslinked network. This network can provide a strong interfacial bond between the substrate and the matrix material, such as a polymer, resin, or cement.
Evonik Degussa Dynasylan 3403 can also enhance the properties of the matrix material itself by modifying its surface chemistry. For example, it can increase the hydrophobicity, or water repellency, of a surface by reducing the number of hydroxyl (-OH) groups and increasing the number of methoxy groups. This can result in improved durability, corrosion resistance, and weatherability. It can also improve the mechanical and electrical properties of the composite by reinforcing the interphase region and reducing the stress concentration at the interface.
Evonik Degussa Dynasylan 3403 has many applications in different industries, such as automotive, construction, electronics, and textiles. In the automotive industry, it can be used as a primer for metal surfaces to improve the adhesion of paints, coatings, and sealants. It can also be used as a coupling agent for glass fibers in reinforced plastics, to enhance their strength and stiffness. In the construction industry, it can be used as an adhesion promoter for cement-based materials, such as mortars, grouts, and concrete, to improve their bond strength and durability. It can also be used as a water repellent for masonry surfaces, to prevent water penetration and reduce efflorescence. In the electronics industry, it can be used as a surface modifier for electronic components, such as printed circuit boards, to improve their solderability and moisture resistance. It can also be used as a dielectric coating for semiconductor devices, to reduce their leakage current and improve their reliability. In the textiles industry, it can be used as a sizing agent for natural and synthetic fibers, to improve their compatibility with dyes and finishes.
Evonik Degussa Dynasylan 3403 is manufactured and supplied by INNO Specialty Chemicals, a leading producer of silanes, siloxanes, and other specialty chemicals in China. INNO Specialty Chemicals has a strong research and development team that can provide customized solutions and technical support to its customers. INNO Specialty Chemicals also has a comprehensive quality control system that ensures the consistency and reliability of its products. INNO Specialty Chemicals is committed to providing high-quality products and services to its customers, and to contributing to the sustainable development of the global economy and society.
In conclusion, Evonik Degussa Dynasylan 3403 is a versatile silane coupling agent that can improve the adhesion, wetting, and dispersion of various materials. It has many applications in different industries, such as automotive, construction, electronics, and textiles. It is manufactured and supplied by INNO Specialty Chemicals, a reliable and innovative producer of specialty chemicals in China. If you are looking for a high-performance silane coupling agent, consider using Evonik Degussa Dynasylan 3403, and benefit from its superior properties and compatibility.
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