Study on accelerators in rubber vulcanization with special reference to the binary systems containing substituted dithiobiurets

Abstract

newlineThe thesis entitled Study on Accelerators in Rubber Vulcanization with Special Reference newlineto the Binary Systems Containing Substituted Dithiobiurets. It includes a detailed study on the newlinebinary accelerator systems containing substituted dithiobiurets in natural rubber and NR latex newlineand dithiobiurets in SBR and NR-SBR blends vulcanization systems. It deals with the experimental procedure adopted for the preparation of DTB-II and DTB-III;the procedure forcompounding and vulcanization and determination of physical properties like modulus, tensile strength, elongation at break, hardness, compression set, heat build up etc. The results indicate that there is efficient acceleration activity of the dithiobiurets in the vulcanization of natural rubber latex containing TMT. The study of dithiobiurets in natural rubber and NR latex reveal that they are having definite accelerating effect in SBR vulcanization systems.