HD-20 silane, vinyltriethoxysilane, is a vinyl-functional silane that may be used to improve the bond between glass fiber or mineral fillers and resins that are reactive towards the vinyl group. It is also employed to functionalize resins via free radical mechanisms – copolymerization or grafting – and to modify surfaces.
Typical Physical Properties
Chemical Name Vinyltriethoxysilane
Molecular Weight 190.4
Color and Appearance Colorless transparent liquid
Boiling Point 160℃ 【760mmHg】
Refractive Index 1.3965+/-0.0005 【25℃】
Viscosity 25℃ 0.7 cSt
Flash Point 44℃
CAS No. 78-08-0
EINECS No. 201-081-7
Purity Min 95.0%
● Coupling agent in filled polymer systems, which cure via a free radical mechanism.
● Finish for glass or a binder additive in glass-reinforced polyester resins.
● Integral additive in mineral-filled polyester or DAP resin compounds.
● Additive to mineral-filled elastomers which are peroxide vulcanized.