Shanghai Daoqin Plastics Co., Ltd.

1 EVA property can EVA is type plastics, 无毒, specific gravity is 0.95g/cm3（ ratio water light ）, its products surface gloss property 差, elastic property good, relatively light, machine strong/high degree low, flow property good, easy processing molding. shrinkage rate relatively large （2%）, EVA can used for masterbatch material 载体. 2 EVA process features EVA molding processing temperature degree low （160-200℃）, scope/range relatively wide, its mold temperature low （20-45℃）, material in processing front need drying （ drying temperature degree 65℃）. EVA processing mold temperature, material temperature easy high, surface comparison coarse 糙（不 light slip ）. EVA product easy viscous front 模, water runner cold material need formed 拉扣式 relatively good. temperature degree ultra- 250℃ easy separation understanding. EVA宜 using/adopting “ low temperature, in pressure, in speed ” process conditions processing product.