Polyarylenesulfidesulfone/sulfonated polymer composite separation membrane and preparation method thereof

A technology of sulfonated polymer and polyarylene sulfide sulfone, applied in chemical instruments and methods, semi-permeable membrane separation, membrane technology, etc., can solve the problems of limited application scope, low porosity, small flux, etc. Simple, high-porosity, high-throughput effects

Active Publication Date: 2014-12-17
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyarylene sulfide sulfone itself is a hydrophobic material, so the formed membrane has the disadvantages of strong hydrophobicity, easy pollution, low flux, and low porosity, which limits the scope of further applications.

Method used

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  • Polyarylenesulfidesulfone/sulfonated polymer composite separation membrane and preparation method thereof
  • Polyarylenesulfidesulfone/sulfonated polymer composite separation membrane and preparation method thereof
  • Polyarylenesulfidesulfone/sulfonated polymer composite separation membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Add 10g of polyarylene sulfide sulfone resin, 10g of sulfonated polyarylene sulfide sulfone, 10g of Tween 80, 8g of polyvinylpyrrolidone, 4g of polyethylene glycol, and 58g of N-methylpyrrolidone into a dissolving solution with a stirrer and a thermometer. Stir and dissolve in the kettle at a temperature of 120°C, centrifuge at a speed of 5000r / min for 10min in a centrifuge, filter to remove impurities, and stand for 2 hours for defoaming to make a uniform membrane-forming solution. Scrape the film-making solution evenly on a quartz glass plate at a temperature of 20°C with a flat-plate scraping machine, and then immerse the nascent film in deionized water at a temperature of 20°C, and the gel will solidify into a polyarylene sulfide sulfone / sulfonated polymer composite separation membrane. After water washing, the polyarylene sulfide sulfone / sulfonated polymer composite separation membrane is soaked in an aqueous solution containing 30% glycerol to preserve pores, and ...

Embodiment 2

[0037] Put 14g of polyarylene sulfide sulfone resin into 8g of sulfonated polyarylene sulfide sulfone, 4g of Tween 80, 4g of polyvinylpyrrolidone, and 70g of N-methylpyrrolidone into a dissolution kettle equipped with a stirrer and a thermometer, at a temperature of 160°C Stir to dissolve, centrifuge at a speed of 5000r / min for 10min in a centrifuge, filter to remove impurities, and stand for 4h for defoaming to make a uniform membrane-forming solution. Scrape the film-making solution evenly on a quartz glass plate at a temperature of 60°C with a flat-plate scraping machine, and then immerse the primary film in a mixed solution of deionized water and ethanol at a temperature of 60°C, and the gel will solidify into polyarylene sulfide sulfone / sulfonated polymer composite separation membrane. After water washing, the polyarylene sulfide sulfone / sulfonated polymer composite separation membrane is soaked in an aqueous solution containing 30% glycerol to preserve pores, and dried ...

Embodiment 3

[0039] Add 18 g of polyarylene sulfide sulfone resin, 6 g of sulfonated polyarylene sulfide sulfone, 5 g of Tween 80, 8 g of polyethylene glycol, and 63 g of N-methylpyrrolidone into a dissolution kettle with a stirrer and a thermometer. Stir to dissolve at ℃, centrifuge at a speed of 5000r / min for 10min in a centrifuge, filter to remove impurities, and stand for 4h to prepare a uniform membrane-forming solution. Scrape the film-making solution evenly on a quartz glass plate at a temperature of 40°C with a flat-plate scraping machine, and then immerse the nascent film in a mixed solution of deionized water and N-methylpyrrolidone at a temperature of 40°C, and the gel solidifies into a polymer Arylsulfide sulfone / sulfonated polymer composite separation membrane. After water washing, the polyarylene sulfide sulfone / sulfonated polymer composite separation membrane is soaked in an aqueous solution containing 30% glycerol to preserve pores, and dried to obtain the polyarylene sulfi...

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Abstract

The invention discloses a polyarylenesulfidesulfone / sulfonated polymer composite separation membrane and a preparation method thereof. The preparation method of the polyarylenesulfidesulfone / sulfonated polymer composite separation membrane is characterized by comprising the following steps: adding 10-30 parts of polyarylenesulfidesulfone, 1-10 parts of a sulfonated polymer, 2-10 parts of a surfactant, 2-12 parts of an additive and 58-70 parts of a solvent into a dissolving kettle with a stirrer and a temperature gauge, stirring and dissolving at the temperature of 120-160 DEG C to prepare a polymer raw solution; preparing the polymer raw solution by a flat membrane scraper or a hollow fiber spinning machine to obtain the polyarylenesulfidesulfone / sulfonated polymer composite separation membrane. The polyarylenesulfidesulfone / sulfonated polymer composite separation membrane has the advantages of high flux, good hydrophilia, pollution resistance and high porosity, and can be used in the field of separation, concentration, extraction and purification.

Description

technical field [0001] The invention relates to a polyarylene sulfide sulfone / sulfonated polymer composite separation membrane and a preparation method thereof, belonging to the field of preparation of polymer separation membranes. Background technique [0002] Polymer separation membrane is a material used in contemporary high-efficiency separation, concentration, purification and purification equipment, and has been widely used in the fields of chemical industry, environmental protection, food, biology, pharmaceuticals, electronics, electric power, metallurgy, textiles, and seawater desalination. It plays an important role in contemporary energy, resources and solving environmental pollution problems. Polyarylene sulfide sulfone is a new type of membrane material. Compared with commonly used polyvinylidene fluoride, polysulfone, and polyvinyl chloride membrane materials, it has higher heat resistance, corrosion resistance, solvent resistance, acid and alkali resistance. ....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/68B01D69/12B01D67/00
Inventor 杨杰袁书珊王越王孝军张刚龙盛如
Owner SICHUAN UNIV
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