Effect of retarders on cure characteristics kinetics of vulcanization and physical properties of natural rubber

Chandy S

Effect of retarders on cure characteristics kinetics of vulcanization and physical properties of natural rubber - Indian Journal of Natural Rubber Research 1990 - 116-125

The effects of three retarders-benzoic acid, N-nitrosodiphenyl amine and N-(cyclohexylthio) phthalimide-on cure characteristics, kinetic parameterrs and physical properties of thiazole and sulphenamide accelerated natural rubber compounds were evaluated. The results indicated that the effect of the retarders depends on the type of accelerator used. The difference in the effect of sthe retarders on scorch and cure times of the compounds is explained based on kinetic parameters of the vulcanization reaction in the presence oaf the retarders. These observations agreed well with the already established reaction mechanisms of cure retardation.


Accelerators
Accelerators
Natural rubber
Natural rubber
Retarders
Retarders
Scorch time
Scorch time
Sulphur
Sulphur
Vulcanization kinetics
Vulcanization kinetics