Trimethoxysilylpropanethiol

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silane coupling agent (KH-590) promote the adhesion between fillersSilquest A-189CAS No. 4420-74-0 silane coupling agent (KH-590) promote the adhesion between fillersSilquest A-189CAS No. 4420-74-0Abstract3-Mercaptopropyltrimethoxysilane (CAS No. 4420-74-0), silane coupling agent KH-590, is a versatile mercapto functional silane suitable to promote the adhesion between fillers such as silica and sulfur crosslinked rubber such as NR, SBR, BR, EPDM and etc. Identification Name 3-Mercaptopropyltrimethoxysilane Synonyms Trimethoxysilylpropanethiol Molecular Formula   C6H16O3SSi Molecular Weight 196.34 CAS Registry Number 4420-74-0 EINECS 224-588-5 EquivalentsMomentive (formerly OSi Specialties ) Silquest A-189 Dow Corning Z-6062   ShinEtsu KBM-803   EVONIK Degussa Dynasylan MTMO   Wacker GENIOSIL GF 70 Chisso Sila-Ace S810 UCT Specialties (formerly Petrarch) M8500 Properties  Density1.057Boiling point 93 C degreeRefractive index1.440 Flash point88 C degreeWater solubilityREACTSApplication 3-Mercaptopropyltrimethoxysilane (CAS No. 4420-74-0), silane coupling agent KH-590, can improve the properties of the mineral-filled elastomer, including modulus, tensile and tear strength, heat buildup, abrasion resistance, resilience, compression set and cure time may be achieved with KH-590. This silane chemically bonds reinforcing minerals such as silica, clay, mica and talc to the polymer matrix especially the sulfur-cured and metal oxide-cured rubber and elastomer. It can be used as a pretreatment on minerals or added at the time of compounding. Mineral-reinforced rubbers such as shoe soles, rollers, wheels, white sidewalls, wire and cable insulation are the common case KH-590 could be used in.