期刊Radiation vulcanization of natural rubber with polyfunctional monomers.pdfVIP

Polym. Bull. (2014) 71:57–82 DOI 10.1007/s00289-013-1045-6 ORI GIN AL PA PER Radiation vulcanization of natural rubber with polyfunctional monomers Elena Manaila • Gabriela Craciun • Maria-Daniela Stelescu • Daniel Ighigeanu • Maria Ficai Received: 15 April 2013 / Revised: 31 July 2013 / Accepted: 24 August 2013 / Published online: 1 September 2013 Springer-Verlag Berlin Heidelberg 2013 Abstract This study presents the effect of the polyfunctional monomers (PFMs) triallylcyanurate (TAC), triallylisocyanurate (TAIC), trimethylolpropane trimethacrylate (TMPT), ethylene glycol dimethacrylate (EDMA) and zinc diacrylate (ZDA) on the mechanical properties of natural rubber (NR) crosslinked by electron beam (EB) processing. Dependence of mechanical properties and crosslink density on irradi- ation dose was determined from a dose range of 50 to 200 kGy. The control blends, obtained with benzoyl peroxide as curing agent, were prepared by blending on a laboratory roller and the control sample curing was accomplished on hydraulic press at 160 C. The results showed an increase in mechanical properties and crosslink density due to the introduction of PFMs. Also, based on the comparison between EB irradiation and dibenzoyl peroxide vulcanization efficiency, the experimental results show that EB irradiation gave the best results. Keywords Vulcanization Natural rubber Polyfunctional monomer Electron beam Introduction Elastomers are materials used in a large range of industrial and household applications. A common physical–chemical treatment is curing (crosslinking), E. Manaila G. Craciun D. Ighigeanu National Institute for Laser, Plasma and Radiation Physics, Electron Accelerators Laboratory, #409 Atomistilor St., 077125 Magurele, Romania e-mail: elena.manaila@inflpr.ro M.-D. Stelescu () M. Ficai National RD Institute for Textile