Radiation Vulcanization of EPDM Rubber with Polyfunctional Monomers

E. Manailaa, G. Craciuna, M.D. Stelescub, D. Ighigeanua aNational Institute for Laser, Plasma and Radiation Physics, Electron Accelerators Laboratory, 409 Atomistilor St., Magurele, Romania bNational R&D Institute for Textile and Leather - Leather and Footwear Research Institute, 93 Ion Minulescu St, Bucharest, Romania

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The most important stage in ethylene-propylene-terpolymer rubber processing technology is vulcaniza-tion/cross-linking. The effect of polyfunctional monomers as triallylcyanurate, triallylisocyanurate, trimethylopropane trimethacrylate, and zinc diacrylate on the crosslink density of ethylene-propylene-terpolymer rubber processed by electron beam irradiation using a 5.5 MeV electron accelerator was presented. The dependence of cross-link density on the irradiation dose was also determined in the dose range of 50 to 500 kGy. The results have showed that the crosslink density is very sensitive to the polyfunctional monomers use.

DOI:10.12693/APhysPolA.135.1061 topics: rubber, polyfunctional monomers, irradiation, dose, properties