Product name: Coupling agent (3-Mercaptopropyl)trimethoxysilane/KH-590

Cas No.: 4420-74-0

Molecular Formula: C6H16O3SSi

Molecular Weight:  196.34

Appearance: Colorless or light yellow liquid

Flash point: 88℃

Boiling point: 93℃

Refractive index:1.44

Density: 1.057

Purity: 97% Min

Description:

(3-Mercaptopropyl)trimethoxysilane, also known as KH-590, A-189 or Z-6062,  is a silane coupling agent commonly used in various industries. It is characterized by the presence of a mercapto (sulfhydryl) functional group.
This compound is primarily utilized as a coupling agent to promote adhesion between organic materials, such as polymers or resins, and inorganic surfaces, including metals, glass, or minerals. It forms covalent bonds that enhance compatibility and improve bonding strength between different materials.
Additionally, (3-Mercaptopropyl)trimethoxysilane can modify the surface properties of materials, making them more hydrophobic and providing increased resistance to moisture, chemicals, and environmental degradation.
Its thiol (sulfhydryl) functional group also enables (3-Mercaptopropyl)trimethoxysilane to participate in cross-linking reactions. It can react with other reactive groups, facilitating cross-linking and polymerization processes in various systems.
Furthermore, (3-Mercaptopropyl)trimethoxysilane finds application as a corrosion inhibitor or surface treatment agent, offering protection against corrosion by forming a protective layer on metal surfaces. It can also act as a lubricant and release agent, reducing friction and improving release properties in rubber, plastics, and molds.
The compound is utilized in coatings and paints to enhance adhesion to different substrates while providing improved durability, chemical resistance, and water repellency.
Overall, (3-Mercaptopropyl)trimethoxysilane plays a vital role as a coupling agent, surface modifier, cross-linking agent, corrosion inhibitor, lubricant, and release agent in various industries, contributing to enhanced material performance and functionality.

Features:

1. Adhesion Promotion: As a silane coupling agent, KH-590 improves the adhesion between organic materials, such as polymers or resins, and inorganic surfaces like metals, glass, or minerals. It forms covalent bonds, enhancing the bonding strength and overall compatibility of diverse materials.
2. Surface Modification: The compound can modify the surface properties of materials, making them more hydrophobic and improving their resistance to moisture, chemicals, and environmental degradation. This modification contributes to enhanced durability and performance in various applications.
3. Cross-Linking Agent: Due to its thiol functionality, KH-590 can participate in cross-linking reactions. It reacts with other reactive groups, such as epoxies or unsaturated compounds, enabling the formation of covalent bonds and facilitating cross-linking in polymer systems.
4. Corrosion Protection: It can act as a corrosion inhibitor or surface treatment agent, providing protection against corrosion by forming a protective layer on metal surfaces. This helps to prevent or minimize the degradation of materials due to corrosive environments.
5. Lubrication and Release Properties: The compound exhibits lubricating properties, reducing friction between surfaces and improving the release characteristics of materials, such as rubber, plastics, and molds. This feature enhances the functionality and performance of these materials in various applications.

Applications:

1. KH-590 is used in applications such as:
◆ Glass composites: as a finish or a size ingredient.
◆ Glass and metal primer.
◆ Sealants and adhesives: as a primer, additive, or for chemical modification of the polymer.
◆ Mineral filled polymers: for pretreat- ment of fillers and pigments or as an additive.
2. Important product effects that can be achieved through the use of KH-590 include:
◆ Compression set.
◆ Improved mechanical properties, e.g., flexural strength, tensile strength, impact strength and modulus of elasticity, tear strength.
◆ Improved moisture and corrosion resistance.
◆ Improved electrical properties, such as dielectric constant, volume resistivity.
◆ Increased thermal resistivity.
3. KH-590 can also improve such processing properties as:
◆ Cure time
◆ Filler dispersion
◆ Rheological behavior: (e.g., viscosity reduction)
◆ Higher filler loading

Specifications:

Storage: Store in a light-protected, well-ventilated, and dry area. Keep sealed.

Package:

1.25 KG/Plastic Drum
2.200 KG/Steel Drum
3.1000 KG/IBC