Journal of Textile Research ›› 2016, Vol. 37 ›› Issue (2): 35-38.

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Preparation and hydrophilic modification of polytetrafluoroethylene hollow fiber membrane

  

  • Received:2015-10-20 Revised:2015-10-24 Online:2016-02-15 Published:2016-02-22

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Abstract:

A novel process named “wrapping method” was put forward to deal with contradiction between the pore size and porosity manipulations in polytetrafluoroethylene (PTFE) hollow fiber membrane manufacturing, which can be applied to fabricate the asymmetric structures and PTFE wrapped hollow fiber membrane with small micropore and high porosity. In addition, physical entanglement of hydrophilic agent on the surface of fibrils and nodes was utilized to achieve surface hydrophilic modification, leading to an excellent wettability and wider application in water treatment.

Key words: polytetrafouoroethylene, wrapping, hydrophilic modification, microfiltration, hollow fiber membrane

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[2] . Study on the concentration and recovery of cellulose solvent N-methylmorpholine-N-oxide by vacuum menbrane distillation [J]. JOURNAL OF TEXTILE RESEARCH, 2017, 38(08): 16-22.
[3] . Hydrophilic modification of polypropylene nonwoven fabrics by UV curing [J]. JOURNAL OF TEXTILE RESEARCH, 2017, 38(05): 98-103.
[4] . Hydrophilic modification of polypropylene fibers prepared by melt electrospinning [J]. JOURNAL OF TEXTILE RESEARCH, 2016, 37(10): 13-18.
[5] . Influence of spinning triangle zone change with yarn guider movement on yarn properties [J]. JOURNAL OF TEXTILE RESEARCH, 2016, 37(10): 19-25.
[6] . Development and application of polytetrafouoroethylene filtration membrane [J]. JOURNAL OF TEXTILE RESEARCH, 2015, 36(09): 149-153.
[7] . Research progress and development direction of surface hydrophilic modification of polyester fiber [J]. JOURNAL OF TEXTILE RESEARCH, 2015, 36(08): 156-164.
[8] . Study on surface modification of poly(lactic acid) fiber grafted with polyvinylpyrrolidone [J]. JOURNAL OF TEXTILE RESEARCH, 2015, 36(05): 13-17.
[9] . Demand forecasting method for seasonal clothing based on construction gene database [J]. JOURNAL OF TEXTILE RESEARCH, 2014, 35(5): 142-0.
[10] . Preparation of modified PVDF hollow fiber separating membrane [J]. JOURNAL OF TEXTILE RESEARCH, 2012, 33(11): 31-36.
[11] . Clothing structural design with diversified wearing methods [J]. JOURNAL OF TEXTILE RESEARCH, 2011, 32(5): 107-111.
[12] LIU Yanjun;YANG Jia;L Chunying;FU Xueqi. Thermal stability and mechanical property of hollow fiber polypropylene membrane modified by cysteine [J]. JOURNAL OF TEXTILE RESEARCH, 2008, 29(4): 5-9.
[13] GAO Chunmei;MENG Yanbin;XI Danli. Study on the chemical stability of PVDF/PVC membrane [J]. JOURNAL OF TEXTILE RESEARCH, 2008, 29(1): 17-21.
[14] HU Xiaoyu;XIAO Changfa;AN Shulin;HUANG Qinglin. Study on polyurethane/polyvinylidene fluoride blend hollow fiber membrane prepared by melt spinning [J]. JOURNAL OF TEXTILE RESEARCH, 2007, 28(5): 1-3.
[15] HU Baoan;Lü Xiaolong;MA Shihu;KAN Bin. Resistance to oxidation of polyvinyldene fluoride hollow fiber membrane [J]. JOURNAL OF TEXTILE RESEARCH, 2007, 28(1): 5-9.
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