Cellulose acetate hollow fibers were spun by a new method-a dry-wet spinning technique of a 3C-shaped spinneret. The spinning technique parameters effecting the form and the reverse osmosis performances of the hollow fiber were investigated in detail, such as polymer concentration, the kind of solvent and additive, spinneret temperature, extrusion rate, evaporation distance, and take-up rate. Heat treating for different times in several treating baths was tested. The results showed that cellulose acetate hollow fiber spun by this method is feasible and is a kind of ''loose'' reverse osmosis membrane and suitable to operate at ultralow pressure, 0.8 MPa, and exhibits a higher flux rate at a salt rejection of 60-85% for tap water. Cellulose acetate hollow fiber for ultralow pressure reverse osmosis should find wide application in industrial processes. (C) 1996 John Wiley & Sons, Inc. [References: 10]
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机译：醋酸纤维素中空纤维是通过一种新的方法纺成的-一种3C形喷丝头的干湿纺丝技术。详细研究了影响中空纤维形态和反渗透性能的纺丝工艺参数，例如聚合物浓度，溶剂和添加剂的种类，喷丝头温度，挤出速率，蒸发距离和吸收速率。测试了在几个处理浴中不同时间的热处理。结果表明，该方法纺制的醋酸纤维素中空纤维是可行的，是一种“松散”的反渗透膜，适合在0.8 MPa的超低压下运行，在60的脱盐率下具有较高的通量。自来水为-85％。用于超低压反渗透的醋酸纤维素中空纤维应在工业过程中得到广泛应用。 （C）1996 John Wiley＆Sons，Inc. [参考：10]
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