Introduce The Role Of Silane Coupling Agent

Introduce The Role of Silane Coupling Agent - ECOPOWER Jun 28, 2022

Silane coupling agent is our commonly used chemical auxiliaries. Do you know all its functions?

The following will introduce the role of silane coupling agent:

1. Crosslinking

Once the silane is grafted into the polymer backbone, it can link polymer molecules together by forming siloxane bonds to form a three®dimensional network. This "crosslinking" is activated by ambient moisture, and this activation occurs at room temperature. Crosile silanes provide improved thermal stability, creep resistance, hardness and chemical resistance for coatings, adhesives, sealants and composites.

2. Improve adhesion

Crosile silanes provide better substrate adhesion for adhesives, sealants and coatings, especially in hot and humid conditions. Silanes are commonly used to improve adhesion to glass, minerals, and metals, and are also suitable for difficult substrates such as polyamides, sheet molding compounds (SMC), acrylics, polyvinyl chloride (PVC), and more.

3. Coupling

Crosslinking silanes can couple inorganic pigments and fillers with organic resins. Silane Coupling Agent often improves the moisture and chemical resistance of coatings, adhesives or composites.

4. Decentralization

Crosslinking silanes aid in the dispersion of inorganic pigments and fillers in coatings and sealants. Good dispersion generally results in lower viscosity of the final product, higher retention of pigments and fillers, and improved hiding power of the coating.

Choice of Silane coupling agent

The functions of silane coupling agents vary widely. The basic point of choosing silane is that it has the activity of reacting with resin, so as to realize its value:

Series	Product Type	English Name	CAS NO	Properties and Application
Sulfur Silane Contained	Corsile®69(Si69)	Bis[3-(triethoxysily)propy] tetrasulfide	40372-72-3	Corsile69 as Tera-Sulfide slilane forms covalent bonds between rubber and fillers.Increase physical preparer and optimized dynamic properties. Reducing rubber viscosity, etc. Corsile69B and Corsile69C can offer good dispersion and easy-weighting, good processability.
	Corsile®69B(Si69B)	50% activity predispersion polymermaster batch	-
	Corsile®69C(X-50S)	50% Liquid Corsile®69 with 50% Carbon Black N330	-
	Corsile®75(Si 75)	Bis[3-(triethoxysilyl)propyl]disulfide	56706-10-6	Corsile75 has a low active disulfide functional group More considerable scorch safety than Corsile69. Same properties with Corsile69 in the rubber compound. Corsile75C, easy weight and better processing sameproperties with Silane Corsile75.
	Corsile®75C	50% Liquid Corsile®75 with 50% Carbon Black	-
	Corsile®966	3-Octanoylthiopropyltriethoxysilane	220727-26-4	Corsile966 is a functional silane that has been shown to enable reduced rolling resistance while maintaining wet traction. This advanced silane offers tire manufacturers increased overall production efficiency compared to standard sulfur silanes.
	Corsile®1891	3- Mercaptopropyltriethoxysilane	14814-09-6	Corsile1891 can markedly improve tensile strength, tearing strength and abrasive resistance and reduce compression set of vulcanizates.It can reduce the viscosity and improve the processability of rubbet products.
	Corsile®189	3- Mercaptopropyltrimethoxysilane	4420-74-0	Has special effect on the metal surface rust inhibitor. With its thiol functional group, it can strengthen the surface corrosion resistance and oxidation resistance and increase the adhesion with resin, when face gold, silver and copper surface processing. In rubber industry, it’s been used in disposing inorganic fillers such as white carbon black, carbon black, glass fiber, mica, which can enhance rubber mechanical property and abrasion resistance.
vinyl Silane	Corsile®172	Vintri(2-methoxyl ethoxyl) silane	1067-53-4	Hydrophobic surface treatment of fillers and inorganic surfaces and silicone synthesis,it can be used for modify cable,electric wire and coating goods,improve their electrical,heat resistance and stress resistance properties. Mainly used in: Glass fiber, Cable, Adhesive promoter, Resin, Filler and Paint.
Alkyl Silane	Corsile®PTEO	n-propyl triethoxy silane	2550-2-9	As intermediate to produce many kinds of coupling agents and silicone fluids
Alkyl Silane	Corsile®PTMO	n-propyl trimethoxy silane	1067-25-0	Important starting material for sol-gel processes. It adds a certain amount of organic character to the siloxane network, due to the propyl group in the product
Intermediate Silane	Corsile®CPTMO	3-Chloropropyl triMethoxysilane	2530-87-2	Basic monomer of silane coupling agent
Intermediate Silane	Corsile®CPTEO	3-Chloropropyl triethoxysilane	5089-70-3	Basic monomer of silane coupling agent