The Introduction of Silane Crosslinking Agent

A silane crosslinking agents refers to a silane containing two or more silicon functional groups. It can act as an in-line molecular bridge, so that multiple linear molecules or lightly branched macromolecules and polymers can be bonded to each other to form a three-dimensional network structure, which promotes or mediates formation of a bond or ionic bond between polymer molecular chains.

Crosslinking agent is the core part of one-component room temperature vulcanized silicone rubber, which is the basis for determining the cross-linking mechanism and classification of products.

According to the different condensation reaction products, the one-component room temperature vulcanization silicone rubber can be divided into different types such as deacidification type, deketoxime type, dealcoholization type, deamination type, deamidation type, and acetone removal type. It is a general-purpose product for mass production.

Taking the methyltriacetoxy silane crosslinking agent as an example, since the condensation reaction product is acetic acid, it is called a deacetic acid type room temperature vulcanized silicone rubber.

In general, silane crosslinking agents are different from silane coupling agents, but there are exceptions. The aniline methyl triethoxy silane   represented by α series silane coupling agent has been widely used in the one-component dealcoholized room temperature vulcanized silicone rubber.

Common silane crosslinking agents are:

Dealcoholic silane: alkyl triethoxy, methyl trimethoxy

Deacidified silane: triacetoxy, propyl triacetoxysilane

Deketoxime silane: vinyl tributol sulfonyl silane, methyl tributol ketone silane

At Co-Formula, you may find a variety of functional silanes and specialty silanes with distinctive features. Commercial silanes here include Isocyanate Silanes, Amino Silanes, Epoxy Silanes, Phenyl Silanes, Vinyl Silanes, Mercapto Silanes, Alkyl Silanes, Chloro Silanes, Silane Crosslinkers and Long-chain Silanes.

With the presence of a functional group and hydrolyzable groups, most Co-Formula silanes are utilized as silane coupling agents, adhesion promoters, crosslinkers, surface modifiers and water scavengers. Paints and coatings, construction and architecture, adhesives and sealants, rubbers and plastics are the primary application fields of functional silanes.

As a reliable silane coupling agent and supplier, Co-Formula sincerely welcomes comments and enquiries from customers worldwide.