An Investigation on Mechanical Properties EPDM/NR and EPDM/SBR Polyblends Used in Metallic Surface Rubber Lining

Rubber lining process is one of the most important industrial techniques to protect the metal surfaces against corrosion phenomenon. Optimum formulation of elastomeric compounds and curing system are necessary to achieve desirable mechanical properties for new elastomeric compounds rather than conventionally used SBR/NR ebonite. In this work,free water vapor was used to increase the vulcanization rate of EPDM/NR and EPDM/SBR polyblends. Mechanical and chemical properties of EPDM/SBR 70/30 (w/w) sample were comparable or in some cases even higher than those of SBR/NR ebonite. On the other hand, the main characteristics of these samples were high curing rate and uniform properties of the rubber lined metallic surface, usually used in petrochemical industries for storage reservoir tanks.

Keywords:

rubber lining , EPDM , SBR , NR , water vapor , mechanical properties , chemical properties