1,2-BIS(TRIMETHOXYSILYL)ETHANE CAS 18406-41-2

Introductions

1,2-BIS(TRIMETHOXYSILYL)ETHANE is an organosilicon compound. At room temperature, it is a colorless liquid that is highly soluble in organic solvents. It has a density of 1.073 g/cm³, a boiling point of 248°C, and a flash point of 66.7°C. It is classified as UN 3382 for the transport of dangerous goods.
1,2-BIS(TRIMETHOXYSILYL)ETHANE has a bis-silane structure and contains six methoxy groups in its molecule, with a crosslinking density twice that of conventional silane coupling agents. The silanol generated by its hydrolysis is more acidic, enabling it to form stable covalent bonds with hydroxyl groups on the surfaces of metals and inorganic materials, thereby enhancing bond strength and hydrolytic stability. It is primarily used as a crosslinking agent in adhesives and sealants to provide moisture-curing capabilities and as a component in environmentally friendly, phosphorus-free, and heavy-metal-free surface treatment solutions to replace traditional phosphating processes. The product must be stored in a cool, dry environment, protected from light, and kept in a sealed container. It has a shelf life of one year.

Specification 

Application

1. Bissilane coupling agent, that is, there are two silane structures in the same molecular structure, and one of its molecules has 6 alkoxy groups, which can form a higher cross-linking density on the surface of inorganic materials; the silanol formed after hydrolysis of this product is more acidic than the silanol formed by ordinary silane coupling agents, so it can form a stronger covalent bond with the hydroxyl groups on the surface of metals and inorganic materials and is not easy to hydrolyze.

2. Environmentally friendly phosphorus-free and heavy metal-free surface treatment liquid, replacing traditional phosphating and passivation processes.

3. Cross-linking agent in adhesives and sealants, providing moisture-curing function and improving adhesion to substrates.

4. Used in conjunction with coupling agents, it can greatly improve the bonding and water resistance of silane coupling agents.

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