Xanthate accelerators for low temperature curing of natural rubber

Abstract

Zinc salts of ethyl, isopropyl, and butyl xanthates were prepared in the laboratory. They were purified by reprecipitation and were characterized by IR, NMR, and thermogravimetric analysis techniques. The melting points were also determined. The rubber compounds with different xanthate accelerators were cured at temperatures from 30 to 150°C. The sheets were molded and properties such as tensile strength, tear strength, crosslink density, elongation at break, and modulus at 300% elongation were evaluated. The properties showed that all three xanthate accelerators are effective for room temperature curing.

CadmiumO-alkylxanthates as CVD precursors of CdS: a chemical characterization

“…16 -18 Such compounds have been used previously in various fields, such as agents in metallurgy, accelerators in rubber vulcanization and high-pressure lubricants. 19,20 Nevertheless, to the best of our knowledge, cadmium(II) xanthates have not been employed as CVD precursors to date.…”

Crosslinking reaction mechanism of diisopropyl xanthogen polysulfide accelerator in bromobutyl elastomer for medical device applications

“…Its fragmentation species are also known to include COS, IPA, CS 2 , and ZnS from the thermal chemical vapor deposition studies of this product by Cheon et al20 However, the formation of zinc xanthate in the BIIR‐DIXP is unlikely because of the high curing temperatures, as Palaty and Joseph21 have found that it is unstable at 150°C and above.…”

Room temperature prevulcanization of natural rubber latex using xanthate

“…The properties of centrifuged latex, given in Table I, were determined as per IS 3708‐1985 and 9316‐1987. Potassium xanthate was prepared in the laboratory as per the procedure reported earlier 5…”