Anti-fouling high-throughput polysulfone composite membrane

A high-flux, composite membrane technology, applied in the field of membrane materials, can solve the problems of limiting the application of polysulfone membrane materials, fast pollution, low flux, etc., to improve the water permeability recovery rate, improve the interaction, and improve the affinity water-based effect

Inactive Publication Date: 2016-08-17
安庆市天虹新型材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the non-hydrophilic nature of polysulfone, compared with other hydrophilic materials, there are

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Example 1

[0016] An anti-pollution high flux polysulfone composite membrane provided by the present invention, whose raw materials by weight include: 80 parts of caprolactam modified polysulfone, 10 parts of sulfonated polysulfone, 15 parts of polyvinylidene fluoride, and polydiphenylmethylene 5 parts of base acrylic polyurethane, 5 parts of polybenzylidene ethylene polyurethane, 1 part of perfluorosulfonic acid resin, 80 parts of solvent, 1 part of polyaniline nanofiber, 2 parts of nano-zirconia, 0.1 part of nano-lanthanum oxide, nano-titanium dioxide 2 parts, 0.2 parts of silane coupling agent modified boron nitride, 1.5 parts of cellulose acetate, 0.5 parts of polystyrene-alt-maleic anhydride copolymer, and 3 parts of carboxybetaine methacrylate.

Example Embodiment

[0017] Example 2

[0018] The present invention proposes an anti-pollution high flux polysulfone composite membrane. Its raw materials include 50 parts by weight of caprolactam modified polysulfone, 20 parts of sulfonated polysulfone, 2 parts of polyvinylidene fluoride, and polydiphenylmethylene. 15 parts of acrylic polyurethane, 1 part of polybenzylidene ethylene polyurethane, 3 parts of perfluorosulfonic acid resin, 35 parts of N-methylpyrrolidone, 4 parts of polyaniline nanofibers, 1 part of nano zirconia, 0.5 part of nano lanthanum oxide Parts, 1 part of nano titanium dioxide, 1.5 parts of silane coupling agent modified boron nitride, 0.3 parts of cellulose acetate, 3 parts of polystyrene-alt-maleic anhydride copolymer, 0.5 parts of carboxybetaine methacrylate .

Example Embodiment

[0019] Example 3

[0020] The present invention proposes an anti-pollution high flux polysulfone composite membrane, and its raw materials by weight include: 56 parts of caprolactam modified polysulfone, 15 parts of sulfonated polysulfone, 8 parts of polyvinylidene fluoride, and polydiphenylmethylene 13 parts of acrylic polyurethane, 3 parts of polybenzylidene ethylene polyurethane, 3 parts of perfluorosulfonic acid resin, 48 parts of solvent, 3.5 parts of polyaniline nanofiber, 1.3 parts of nano-zirconia, 0.35 parts of nano-lanthanum oxide, nano-titanium dioxide 1.5 parts, silane coupling agent modified boron nitride 1.3 parts, cellulose acetate 0.9 parts, polystyrene-alt-maleic anhydride copolymer 2.8 parts, carboxybetaine methacrylate 2.5 parts, polyvinylpyrrolidone 10 copies;

[0021] Wherein, the solvent is a mixture of N-methylpyrrolidone, N-methylmorpholine N-oxide hydrate, acetone, and ethanol in a weight ratio of 2:5:2:5;

[0022] The average particle size of the nano zirc...

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Abstract

The invention discloses an anti-fouling high-throughput polysulfone composite membrane. The anti-fouling high-throughput polysulfone composite membrane is prepared from, by weight, 50-80 parts of caprolactam-modified polysulfone, 10-20 parts of sulphonated polysulfone, 2-15 parts of polyvinylidene fluoride, 5-15 parts of polydiphenylmethylene acrylic polyurethane, 1-5 parts of polydiphenylmethylene vinyl polyurethane, 1-3 parts of perfluorinated sulfonic acid resin, 35-80 parts of a solvent, 1-4 parts of polyaniline nanofibers, 1-2 parts of nanometer zirconia, 0.1-0.5 part of nanometer lanthanum oxide, 1-2 parts of nanometer titanium dioxide, 0.2-1.5 parts of a modified boron nitride silane coupling agent, 0.3-1.5 parts of cellulose acetate, 0.5-3 parts of a polystyrene-alt-maleic anhydride copolymer and 0.5-3 parts of carboxyl betaine methacrylate. The anti-fouling high-throughput polysulfone composite membrane is good in thermal stability, excellent in weather resistance and anti-fouling performance and high in throughput.

Description

technical field [0001] The invention relates to the technical field of membrane materials, in particular to an anti-pollution high-flux polysulfone composite membrane. Background technique [0002] Polysulfone materials are a class of widely used membrane materials, including polysulfone, polyethersulfone, polyphenylene sulfide sulfone, etc. and their sulfonated or chloromethylated products, which have excellent thermal stability, oxidation resistance and Excellent mechanical properties and outstanding separation properties have been widely used as support materials for commercial microfiltration, ultrafiltration, reverse osmosis and nanofiltration membranes. Due to the non-hydrophilic nature of polysulfone, compared with other hydrophilic materials, it has the disadvantages of low flux and fast pollution, which limits the application of polysulfone membrane materials. Contents of the invention [0003] Based on the technical problems in the background technology, the pre...

Claims

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Application Information

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IPC IPC(8): B01D71/68B01D69/12B01D69/02
CPCB01D71/68B01D69/02B01D69/12B01D2325/36
Inventor 魏松
Owner 安庆市天虹新型材料科技有限公司
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