Evonik (formerly Degussa AG) 6598, organic silane coupling agent Dynasylan 6598, oligomeric composite vinylalkylsiloxane Overview:
DYNASYLAN ® 6598 Vinyl alkoxysilane oligomer (Also known as:Silane coupling agent 6598,Thickener 6598,Dispersant 6598）Developed and produced by Evonik Degussa AG, it is DYNASYLAN ® VTMOEO's further product is an organic functional silane containing vinyl, propyl, and ethoxy groups, which is a colorless, transparent, and low viscosity liquid. DYNASYLAN ® 6598 vinylalkoxysilane oligomer is an advanced silane coupling agent used for inorganic materials (glass fibers, fillers) and organic polymers (EPDM, EVA). DYNASYLAN ® 6598 ethylene alkoxysilane oligomers are used in mineral filled and peroxide crosslinked cable systems to improve mechanical and electrical properties, especially when exposed to humid air. Due to DYNASYLAN ® 6598 has a high boiling point and high flash point, making it safer and easier to process than typical monomeric silanes. From an environmental perspective, the ethanol (VOC) released from the hydrolysis of DYNASYLAN ® 6598 vinylalkoxysilane oligomers is significantly less than that of monomeric silane.
Characteristics of Dynasylan ® 6598 vinylalkoxysilane oligomers:
DYNASYLAN ® 6598 ethylene based alkoxysilane oligomers are excellent adhesion promoters for mineral filling and peroxide crosslinking. In humid air, the silicon oxygen ethoxy functional groups generated by the hydrolysis of DYNASYLAN ® 6598 usually exist on the surface of the filler, forming active silanol groups. These active silanol groups react with hydroxyl groups on the surface of the filler, resulting in DYNASYLAN ® 6598 vinylalkoxysilane oligomers form chemical bonds with fillers.
The vinyl functional group at the end of DYNASYLAN ® 6598 vinylalkoxysilane oligomers can couple with the polymer and promote the reaction in peroxide crosslinking. The alkoxy groups in DYNASYLAN ® 6598 vinylalkoxysilane oligomers are hydrophobic and can significantly improve the electrical properties of the filling material, especially after exposure to humid air.
Applied in industrial fields such as rubber, plastics, fillers, pigments, etc., in low smoke and halogen-free, filler modification, high flash point and high boiling point, low VOC, good dispersion of fillers,
Dynasylan ® 6598 Vinyl alkoxysilane oligomers Overview: Dynasylan ® 6598 vinylalkoxysilane oligomers are developed and produced by Evonik Degussa AG, and are DYNASYLAN ® VTMOEO's further product is an organic functional silane containing vinyl, propyl, and ethoxy groups, which is a colorless, transparent, and low viscosity liquid.
Evonik (formerly Degussa AG) 6598, organic silane coupling agent Dynasylan 6598, oligomeric composite vinyl alkyl siloxane application:
One important application area of filling materials is the cable industry (kaolin filled cables, HFFR cables). Filling EPDM and EVA through DYNASYLAN ® The bonding promotion and hydrophobic effect of 6598 vinylalkoxysilane oligomers can be processed into cable materials. DYNASYLAN ® 6598 ethylene alkoxysilane oligomers can also be used for ATH and MDH filled HFFR cables. In addition, DYNASYLAN ® 6598 vinylalkoxysilane oligomers have many applications, such as pre-treatment fillers and pigments, for dispersion, and so on. The typical properties that can be improved by using DYNASYLAN ® 6598 vinylalkoxysilane oligomers to fill polymers are:
· Improve the dispersion of fillers
· Improve hydrophobicity to enhance electrical performance, especially when exposed to humid air
· Increase the filling amount of fillers
· High tear strength
· Increasing temperature enhances creep behavior
· Increase chemical resistance
· Cracking trend under reduced pressure
· High impact resistance strength
· High wear resistance
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