Abstract
3-Mercaptopropyltrimethoxysilane (CAS No. 4420-74-0), silane coupling agent SCA-S89M, 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
Equivalents
Silquest A-189
Z-6062
KBM-803
MTMO
GENIOSIL GF 70
Chisso Sila-Ace S810
UCT Specialties (formerly Petrarch) M8500
Properties
Density: 1.057
Boiling point: 93 C degree
Refractive index: 1.440
Flash point: 88 C degree
Water solubility: REACTS
Application
3-Mercaptopropyltrimethoxysilane (CAS No. 4420-74-0), silane coupling agent SCA-S89M, 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 SCA-S89M. 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 SCA-S89E could be used in.
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