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Damping property of EVM/EPDM blends

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  • Abstract:The damping properties of ethylene-vinyl acetate rubber (EVM)/ethylene-propylene rubber (EPDM) blends were investigated by dynamic mechanic analyzer (DMA), in which BIPB was chosen as the curing agent. The results show that EVM/EPDM blends with various ratios have two separated tanδ peaks with "valley" data, which can't improve the damping property of blend. Zinc diacrylate (Zn(AA)2) can enlarge the tanδ peak. EVM/EPDM have two separated damping peaks with "valley" data in between 20°C~40°C after the addition of EVM900 in blend which indicates that EVM900 cann't effectively improve the damping properties of blends. Polyvinylchloride (PVC) and EVM 700 are fully compatible so that PVC can obviously improve the damping property of EVM/EPDM blends in high temperature zone.

  • Volume:27

  • Issue:2

  • Translation or Not:no

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