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Hydrophilic hollow fiber ultrafiltration membrane

A hydrophilic and ultrafiltration membrane technology, applied in membrane technology, semi-permeable membrane separation, chemical instruments and methods, etc., can solve problems such as mechanical strength, hydrophilic anti-pollution performance, and unsatisfactory water flux. Achieve good anti-pollution performance, high water flux and high mechanical strength

Active Publication Date: 2015-09-23
CHANGSHU 3F ZHENFU NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing hollow fiber ultrafiltration membranes are not ideal in terms of mechanical strength, hydrophilicity, anti-pollution performance, and water flux.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A hydrophilic hollow fiber ultrafiltration membrane obtained after membrane-forming treatment from the following mixture:

[0029] 3 parts by mass of polyoxyethylene stearate,

[0030] 5 parts by mass polyvinyl chloride,

[0031] 3 parts by mass of propylene glycol,

[0032] 2 parts by mass of ethanol,

[0033] 9 parts by mass of N-methylpyrrolidone,

[0034] 25 parts by mass of polym-phenylene isophthalamide fiber,

[0035] 2 parts by mass polysulfone,

[0036] 1 part by mass of ethylene glycol methyl ether,

[0037] 7 parts by mass of N,N-dimethylformamide,

[0038] 4 parts by mass of polyacrylonitrile,

[0039] 1 part by mass of lithium chloride,

[0040] 8 parts by mass of polyvinylidene fluoride,

[0041] 1 part by mass of polyvinylpyrrolidone,

[0042] 2 parts by mass of lithium chloride monohydrate,

[0043] 3 parts by mass of glycerol, 1 part by mass of acetone,

[0044] 7 parts by mass polyethersulfone,

[0045] 12 parts by mass of N,N-dimethylacet...

Embodiment 2

[0049] A hydrophilic hollow fiber ultrafiltration membrane obtained after membrane-forming treatment from the following mixture:

[0050] 1 part by mass of polyoxyethylene stearate,

[0051] 5 parts by mass polyvinyl chloride,

[0052] 3 parts by mass of propylene glycol,

[0053] 2 parts by mass of ethanol,

[0054] 9 parts by mass of N-methylpyrrolidone,

[0055] 25 parts by mass of polym-phenylene isophthalamide fiber,

[0056] 2 parts by mass polysulfone,

[0057] 1 part by mass of ethylene glycol methyl ether,

[0058] 7 parts by mass of N,N-dimethylformamide,

[0059] 4 parts by mass of polyacrylonitrile,

[0060] 1 part by mass of lithium chloride,

[0061] 8 parts by mass of polyvinylidene fluoride,

[0062] 1 part by mass of polyvinylpyrrolidone,

[0063] 2 parts by mass of lithium chloride monohydrate,

[0064] 3 parts by mass of glycerol, 1 part by mass of acetone,

[0065] 7 parts by mass polyethersulfone,

[0066] 12 parts by mass of N,N-dimethylaceta...

Embodiment 3

[0070] A hydrophilic hollow fiber ultrafiltration membrane obtained after membrane-forming treatment from the following mixture:

[0071] 1.3 parts by mass of polyoxyethylene stearate,

[0072] 5 parts by mass polyvinyl chloride,

[0073] 3 parts by mass of propylene glycol,

[0074] 2 parts by mass of ethanol,

[0075] 9 parts by mass of N-methylpyrrolidone,

[0076] 25 parts by mass of polym-phenylene isophthalamide fiber,

[0077] 2 parts by mass polysulfone,

[0078] 1 part by mass of ethylene glycol methyl ether,

[0079] 7 parts by mass of N,N-dimethylformamide,

[0080] 4 parts by mass of polyacrylonitrile,

[0081] 1 part by mass of lithium chloride,

[0082] 8 parts by mass of polyvinylidene fluoride,

[0083] 1 part by mass of polyvinylpyrrolidone,

[0084] 2 parts by mass of lithium chloride monohydrate,

[0085] 3 parts by mass of glycerol, 1 part by mass of acetone,

[0086] 7 parts by mass polyethersulfone,

[0087] 12 parts by mass of N,N-dimethylac...

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PUM

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Abstract

The invention discloses a hydrophilic hollow fiber ultrafiltration membrane which is prepared by the mixture of the following components subjected to membrane formation in parts by mass: 1-3 parts of polyethylene glycol monostearate, 5 parts of polyvinyl chloride, 3 parts of propylene glycol, 2 parts of ethyl alcohol, 9 parts of N-methyl pyrrolidone, 25 parts of polyisophthaloyl metaphenylene diamine fiber, 2 parts of polysulfone, 1 part of ethylene glycol monomethyl ether, 7 parts of N, N-dimethylformamide, 4 parts of polyacrylonitrile, 1 part of lithium chloride, 8 parts of polyvinylidene fluoride, 1 part of polyvinylpyrrolidone, 2 parts of lithium chloride hydrate, 3 parts of glycerol, 1 part of acetone, 7 parts of polyether sulfone, 12 parts of N, N-dimethylacetamide, 22 parts of dimethyl sulfoxide, and 2 parts of polyethylene glycol. The hydrophilic hollow fiber ultrafiltration membrane provided by the invention has relatively high mechanical strength, good hydrophilia, good antifouling property, and relatively high water flux.

Description

technical field [0001] The invention relates to a hydrophilic hollow fiber ultrafiltration membrane. Background technique [0002] The existing hollow fiber ultrafiltration membranes are not ideal in terms of mechanical strength, hydrophilicity, anti-pollution performance, and water flux. Contents of the invention [0003] The purpose of the present invention is to provide a hydrophilic hollow fiber ultrafiltration membrane, which has high mechanical strength and good hydrophilicity, good anti-pollution performance and high water flux. [0004] In order to achieve the above object, the technical solution of the present invention is to design a kind of hydrophilic hollow fiber ultrafiltration membrane, which is obtained after membrane-forming treatment from the following mixture: [0005] 1-3 parts by mass of polyoxyethylene stearate, [0006] 5 parts by mass polyvinyl chloride, [0007] 3 parts by mass of propylene glycol, [0008] 2 parts by mass of ethanol, [0009]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D69/02B01D69/08
Inventor 徐建林邹建良宗建青仇峰
Owner CHANGSHU 3F ZHENFU NEW MATERIALS CO LTD