The Vulcanization Characteristics and Physical Properties of Carbon Black Loaded-Polymeric Composites: I. N-220 Black Loaded PVC/EPDM Composites

摘要

In the present study, attempts have been made to modify carbon black filled Ethylene-propylene-diene monomer (EPDM)/Poly vinyl chloride (PVC) composites. Compounding were carried out using a two-roll mill and vulcanized at 145°C. The modified blend of unfilled PVC/EPDM was characterized on the basis of the effect of PVC ratio on curing parameters, mechanical and swelling properties of blends were investigated. The effect of N220 black content on vulcanization characteristics and mechanical properties of 80PVC/20EPDM composites were also examined. The minimum torque and maximum torque of the blend increased by increasing N220 black content in CB filled PVC/EPDM blend. Scorch time, cure time, elongation at break decreased after increasing of N220 content, but tensile strength, hardness and specific gravity increased. Overall, an observed enhancement in curing parameters and mechanical properties have been achieved by incorporating N220 black into the unfilled PVC/EPDM composites.