题目内容
薄膜衣中加人增塑剂的机制为( )
2021-11-10
A.提高衣层的柔軔性,增加其抗撞击的强度
B.降低膜材的流动
C.降低膜材的晶型转变温度
D.增加膜材的表观黏度
E.使膜材具有挥发性
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