The Difference Between Silane Coupling Agent and Silane Crosslinking Agent

1. Performance improvement of silane coupling agent

Silane coupling agent is a kind of molecule containing two kinds of organosilicon compounds with different chemical properties at the same time, which is used to improve the actual bonding strength of polymers and inorganic substances. This may mean an increase in true adhesion, or an improvement in wettability, rheology, and other handling properties.

The silane coupling agent may also modify the interface area to enhance the boundary layer between the organic phase and the inorganic phase. Therefore, silane coupling agents are widely used in adhesives, coatings and inks, rubber, casting, glass fiber, cables, textiles, plastics, fillers, surface treatment and other industries.

2. The silane crosslinking agent is different from the silane coupling agent

Unlike silane coupling agent, silane crosslinking agents refer to silanes containing two or more silicon functional groups, which can bridge between linear molecules, thereby making multiple linear molecules, slightly branched macromolecules, or macromolecules are bonded to each other and cross-linked to form a three-dimensional network structure, which promotes or mediates the formation of covalent or ionic bonds between polymer molecular chains.

Therefore, silane coupling agents are widely used in adhesives, coatings and inks, rubber, casting, glass fiber, cables, textiles, plastics, fillers, surface treatment and other industries.

Simply put, silane crosslinking agent is to connect the same things; silane coupling agent is to connect different things.

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