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编织管内增强聚偏氟乙烯中空纤维膜制备工艺研究 被引量:2

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摘要 以编织管为支撑体,通浸没相转化法在编织管表面成型具有可控孔径的分离层,一步法制备了高性能的编织管内增强PVDF中空纤维膜,并采用包埋技术和偶联剂涂敷技术提高编织管与分离层的界面结合力。通过改变PVDF含量、纺丝机卷绕频率、计量泵频率,详细研究了这几方面因素对于编织管内增强PVDF中空纤维膜性能的影响。结果表明,当纺丝机卷绕速度不变的情况下,随着计量泵挤出频率的增大,膜丝厚度增加,平均孔径变小,水通量变小,穿孔强度变大;当计量泵出料频率不变的情况下,随着纺丝机卷绕速度的增大,膜丝厚度减薄,水通量变大,但是穿孔强度变小。
出处 《化工生产与技术》 CAS 2013年第6期8-10,共3页 Chemical Production and Technology
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