公开(公告)号：US09211503B2

公开(公告)日：2015-12-15

申请号：US14358597

申请日：2013-01-24

Applicant: TIANJIN POLYTECHNIC UNIVERSITY

Inventor： Changfa Xiao ,  Zhongqing Miao ,  Qinglin Huang ,  Shulin An

IPC: B01D67/00 ,  B01D71/32 ,  B01D69/08 ,  B01D63/02 ,  B01D71/06 ,  B01D71/82 ,  C02F1/44

CPC classification number: B01D67/003 ,  B01D63/02 ,  B01D67/0093 ,  B01D69/087 ,  B01D71/32 ,  B01D2323/18 ,  B01D2325/14 ,  C02F1/44

Abstract: A preparation method of a perfluorinated polymer hollow fiber membrane comprises: evenly mixing a first mixture that is mixed by a perfluorinated polymer, PS, a polymer additive, and a composite pore-forming agent; evenly mixing a second mixture that is mixed by the first mixture and an organic liquid; under 300° C.-350° C., processing the second mixture with a melt to spin by a twin-screw extruder; extruding a hollow fiber by a hollow fiber spinneret; dipping the hollow fiber membrane into deionized water for 48 hours; putting the hollow fiber membrane aired into a concentrated sulfuric acid to process with a sulfonation; washing the hollow fiber membrane by deionized water; and drying the hollow fiber membrane; in such a manner that the hydrophilic perfluorinated polymer hollow fiber membrane is obtained.

Abstract translation: 全氟化聚合物中空纤维膜的制备方法包括：将由全氟化聚合物PS，聚合物添加剂和复合成孔剂混合的第一混合物均匀混合; 均匀混合由第一混合物和有机液体混合的第二混合物; 在300℃-350℃下，用熔融物处理第二混合物通过双螺杆挤出机旋转; 通过中空纤维喷丝头挤出中空纤维; 将中空纤维膜浸入去离子水中48小时; 将中空纤维膜放入浓硫酸中进行磺化处理; 用去离子水清洗中空纤维膜; 并干燥中空纤维膜; 以这样的方式获得亲水性全氟化聚合物中空纤维膜。

公开(公告)号：US20140311968A1

公开(公告)日：2014-10-23

申请号：US14358597

申请日：2013-01-24

Applicant: TIANJIN POLYTECHNIC UNIVERSITY

Inventor： Changfa Xiao ,  Zhongqing Miao ,  Qinglin Huang ,  Shulin An

IPC: B01D67/00 ,  B01D63/02 ,  B01D71/32

CPC classification number: B01D67/003 ,  B01D63/02 ,  B01D67/0093 ,  B01D69/087 ,  B01D71/32 ,  B01D2323/18 ,  B01D2325/14 ,  C02F1/44

Abstract: A preparation method of a perfluorinated polymer hollow fiber membrane comprises: evenly mixing a first mixture that is mixed by a perfluorinated polymer, PS, a polymer additive, and a composite pore-forming agent; evenly mixing a second mixture that is mixed by the first mixture and an organic liquid; under 300° C.-350° C., processing the second mixture with a melt to spin by a twin-screw extruder; extruding a hollow fiber by a hollow fiber spinneret; dipping the hollow fiber membrane into deionized water for 48 hours; putting the hollow fiber membrane aired into a concentrated sulfuric acid to process with a sulfonation; washing the hollow fiber membrane by deionized water; and drying the hollow fiber membrane; in such a manner that the hydrophilic perfluorinated polymer hollow fiber membrane is obtained.

Abstract translation: 全氟化聚合物中空纤维膜的制备方法包括：将由全氟化聚合物PS，聚合物添加剂和复合成孔剂混合的第一混合物均匀混合; 均匀混合由第一混合物和有机液体混合的第二混合物; 在300℃-350℃下，用熔融物处理第二混合物通过双螺杆挤出机旋转; 通过中空纤维喷丝头挤出中空纤维; 将中空纤维膜浸入去离子水中48小时; 将中空纤维膜放入浓硫酸中进行磺化处理; 用去离子水清洗中空纤维膜; 并干燥中空纤维膜; 以这样的方式获得亲水性全氟化聚合物中空纤维膜。