Incorporation of SBR Rubber Waste into PVC/CARBONATE Systems

Abstract

The objective of this work was to evaluate the functionalization of the PVC/CARBOBATE polymer system with the addition of SBR and the Polyvinyl chloride-PVC system and CaCO3 carbonate through the incorporation prepared in a torque rheometer. Variations in SBR concentrations in the Poly (vinyl chloride) (C2H3Cl) and CaC03 system under processing conditions to obtain a balance of the mixture in a controlled environment of temperature, time and torque. The mixtures made were characterized and analyzed in terms of their physical and mechanical properties in terms of traction, hardness and fluidity. By FTIR, it was observed that there were no changes in the bands due to the presence of SBR-R in the increase of its percentage of SBR in the PVC/CARBONATE system. The results showed that the addition of rubber residue to the PVC/CARBONATE system causes variations in the mechanical properties of traction and hardness, justifying the reduction of mechanical strength in the addition of rubber to the formulations. XRD reveals the different behavior of the curves, predominantly with low crystallinity in the presence of rubber residue. The behavior of TGA in mass loss in a temperature-controlled atmosphere changes in the flow behavior, presenting lower MFI, leaving the material more viscous and with lower flow in relation to the expected behavior in the injection process. Although the proportions caused changes in the mechanical properties, the results were significantly satisfactory, considering that the composition for the purpose of the study obtained good results. Allowing up to the proportions of 25 and 50% to be applied and alternatives for the development of products with rubber residues according to the desired properties.