Title of article :
Compatibility Studies on Sulphur Cured EPDM/CIIR Blends
Author/Authors :
TheraftiJ, Sunil Jose Cochin Univ ersity - Department of Polymer Science and Rubber Technology, India , Anand Kuzhuppully, Anoop GE Global Research, John F.Welch Technology Centre, India , Joseph, Rani Cochin Univ ersity - Department of Polymer Science and Rubber Technology, India
Abstract :
The principa l objective of this study was to explore the compatibility of a blend of two synthetic elastomers viz ., ethylene -propylene-diene rubber (EPDM) and chlorobutyl rubber (CIIR). Various commercial grades of EPDM were blended with a specific grade of CIIR at different proport ions. The mechanical properties such as tensile strength, tear strength, ageing resistance, etc. were studied . On the basis of the observed physical properties, two particular grades of EPDM were found to be compatible with CIIR. Differential scanning calorimetry and scanning electron microscopy confirmed the results . Chlorosulphonated polyethylene was added as a compatibilizing agent to overcome the phase separat ion of the other two incompatible grades of EPDM in blending with CIIR. The results revealed that the addition of compatibilizer greatly improves the compatibil ity and thereby the properties of the blends.
Keywords :
EPDM , chlorobutyl rubber , blend , curing , compatibilizer.
Journal title :
Iranian Polymer Journal
Journal title :
Iranian Polymer Journal
