Silane Coupling Agent Crosile®1298 Vinyl-tris(2-methoxy-ethoxy)silane

Chemical Properties

ECOPOWER Crosile®1298 is excellent as an adhesion promoter in mineralfilled, peroxide-crosslinked compounds. The silicon-functional ethoxy groups of Crosile®1298 hydrolyse in the presence of moisture, which is usually present on the filler surface, forming active silanol groups. The condensation of these silanol groups with hydroxyl groups on the filler surface leads to a tight chemical bond between Crosile®1298 and the filler. The vinyl functional end of Crosile®1298 can be coupled to the polymer in a further reaction that runs parallel to peroxide crosslinking.

The propyl groups of Crosile®1298 are hydrophobic and result in markedly improved electrical properties of the filled compounds, especially after exposure to water.

A major field of application for mineral-filled compounds is the cable industry. EPDM and kaolin can be processed into cable compounds through the adhesion promoting and hydrophobic effects of Crosile®1298. It can also be used in the manufacture of halogen-free, non-toxic, environmentallyfriendly flame retardant compounds (HFFR) based on EVA or PE and ATH or MDH. In addition, Crosile®1298 can be used in many other applications such as filler and pigment treatment, use in dispersions etc.

Synonyms

Dynasylan 6598

Specifications

Application

Typical property improvements obtained by using Crosile®1298 in filled polymers are:

-Improve filler dispersion

-Increase the hydrophobicity and results in improved electrical properties, especially when exposure to wet air

-Increase in maximum filler  

-Increases the creep behavior as the temperature increases

-Improved chemical resistance

-Higher tear strength

-Higher impact strength  

-Higher wear resistance

-Strongly reduced tendency to crack under pressure