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【单选题】
生产中要使纤维成形,首先要求把纺丝流体从喷丝孔道中挤出,使之形成细流,因纺丝流体的黏弹性和挤出条件的不同,挤出细流的类型可分为以下四种,其中()是纺丝中希望出现的类型。
A.
液滴型(挤出成不连续液滴)
B.
漫流型(出喷丝板面漫流,细流不稳定)
C.
胀大型(出喷丝口细流胀大)
D.
破裂型(纺丝流体中出现不稳定流动)
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