开发者_开发问答 eav是乙烯和醋酸乙烯共聚物。EVA有很好的耐低温性能，其热分解温度较低，约为230℃左右，随着分子量的增大， EVA的软化点上升，加工性和塑件表面光泽性下降，但强度增加，冲[详细]
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