Microporous polypropylene hollow fibrous membranes may be prepared by the melt spinning and cold stretching (MSCS) or thermally induced phase separation (TIPS) method.
对熔融纺丝-冷却拉伸与热致相分离两种制备微孔聚丙烯中空纤维膜的意义、原理、过程、影响因素等进行了评述。
The shape changes of cortical cell of yak hair fiber have been analyzed before and after stretching slenderization by means of ultrasonic separation.
借助超声分离技术，对细化前后牦牛纤维皮质细胞形态的变化进行分析，发现纤维皮质细胞被拉长变细且不发生细胞间的滑移。
The traditional manufacturing methods include powder-sintering, melt-spinning and cold-stretching, thermally induced phase separation, state track etching, non-solvent induced phase separation, etc.
微孔材料的传统制造方法有粉末烧结法、熔融拉伸法、径迹蚀刻法、非溶剂致相分离法等。
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