| Empirical formula: C9H20O5Si CAS No.: 2530-83-8 Properties: The use of GENIOSIL® GF 80 as a coupling agent in mineral-filled plastics improves filler dispersibility, reduces its sedimentation tendency and greatly lowers the resin's viscosity. In addition, it leads to higher filler loading and a marked increase in water (vapor) resistance, as well as resistance to acids and bases. As a component of adhesives and sealants, GENIOSIL® GF 80 improves both adhesion to the substrate and mechanical properties such as flexural strength, tensile strength and modulus of elasticity. Special features: GENIOSIL® GF 80 is an epoxy functional alkoxysilane. It´s a clear, colorless liquid with a characteristic odor. The silane hydrolyzes in the presence of moisture (methanol is released) to form silanols, which can then react with themselves to produce siloxanes. The epoxy group on GENIOSIL® GF 80 can undergo a ring-opening reaction with nucleophiles such as alcohols and amines. An acidic or basic catalyst may be required. As a bifunctional, organically unsaturated molecule, GENIOSIL® GF 80 is able to function as a molecular bridge between inorganic and organic substrates. Application: GENIOSIL® GF 80 is mainly used in the treatment of inorganic fillers (e.g. glass, mineral and glass wools, ATH, kaolin, mica, metallic oxides) for various polymer types, such as epoxy resins, urethane, melamine resins, EPDM, and for polysulfides, and an additive or primer in coatings, paints, adhesives and sealants. Information provided by Wacker Chemie AG. |
