Abstract
3-Mercaptopropyltriethoxysilane (CAS No. 14814-09-6), silane coupling agent KH-580, 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-Mercaptopropyltriethoxysilane
Synonyms  : Triethoxysilylpropanethiol
Molecular Formula  : C9H22O3SSi
Molecular Weight: 238.42
CAS Registry Number: 14814-09-6
EINECS: 238-883-1

Equivalents
Momentive (formerly OSi Specialties ) Silquest A-1891
Dow Corning Z-6910 Z-6911  


Properties
Density: 0.987
Boiling point: > 200 C degree
Flash point: 88 C degree
Water solubility: REACTS

Application
3-Mercaptopropyltriethoxysilane (CAS No. 14814-09-6), silane coupling agent KH-580, 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.