| Thermoplastic vulcanizate(TPV) of ethylene-vinyl acetate copolymer(EVA)/chlorinated polyethylene(CPE)/nitrile butadiene rubber(NBR) was prepared by dynamic vulcanization,and the stress-strain behavior,microstructure,Payne effect and Mullins effect of the obtained TPV were investigated.The zinc dimethacrylate (ZDMA) reinforced TPV showed a typical Payne effect: the storage modulus decreased obviously with the increase of strain amplitude.The ZDMA reinforced TPV also showed a strong Mullins effect.Under the same extension ratio,compared with those of unreinforced TPV,the maximum stress,instantaneous residual strain,internal loss,loss factor and softening factor of ZDMA reinforced TPV were higher. |
