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Polyaniline/polyaryletherketone composite membrane with electrochemical response as well as preparation method and application of polyaniline/polyaryletherketone composite membrane

A technology of polyaryletherketone and polyarylether, which is applied in the field of polymer membrane surface modification and preparation, can solve the problems of increasing separation membrane preparation steps, strong PANI rigidity, and increasing production costs, so as to increase hydrophilicity and improve the preparation process. Simplicity, the effect of increased pollution resistance

Active Publication Date: 2022-08-09
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PANI has strong rigidity and is easy to agglomerate, so it cannot be modified on the surface of other materials.
Most of the innovative separation membrane modification research reported so far will increase the preparation steps of the separation membrane and increase the production cost

Method used

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  • Polyaniline/polyaryletherketone composite membrane with electrochemical response as well as preparation method and application of polyaniline/polyaryletherketone composite membrane
  • Polyaniline/polyaryletherketone composite membrane with electrochemical response as well as preparation method and application of polyaniline/polyaryletherketone composite membrane
  • Polyaniline/polyaryletherketone composite membrane with electrochemical response as well as preparation method and application of polyaniline/polyaryletherketone composite membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Synthesis of PANI / PEEK porous composite membrane at room temperature (20°C)

[0021] (1) Preparation of PEEKt porous membrane: the structural formula of polyaryletheramine (PEEKt) is shown in (I), wherein a=b=X=Y=1. Polyaryletheramine (PEEKt) and pore-forming agent polyvinylpyrrolidone were added to the organic solvent N-methylpyrrolidone, stirred until completely dissolved, and the PEEKt film casting liquid was prepared; in the PEEKt film casting liquid, the mass fraction of PEEKt was 12 %, the mass fraction of polyvinylpyrrolidone is 12%; pour the obtained PEEKt casting solution on a clean glass plate, scrape the film with a scraper with a thickness of 200 μm, and after volatilizing for 30s, put it in a coagulation bath, and the coagulation bath is super pure water to prepare PEEKt porous membrane;

[0022] (2) The PEEKt porous membrane was added to the hydrochloric acid solution of ammonium persulfate (the concentration of the hydrochloric acid solution w...

Embodiment 2

[0025] Example 2: Synthesis of PANI / PEEK porous composite membrane at 40°C

[0026] (1) Preparation of PEEKt porous membrane: the structural formula of polyaryletheramine (PEEKt) is shown in (I), wherein a=b=X=Y=1. Polyaryletheramine (PEEKt) and pore-forming agent polyvinylpyrrolidone were added to the organic solvent N-methylpyrrolidone, stirred until completely dissolved, and the PEEKt film casting liquid was prepared; in the PEEKt film casting liquid, the mass fraction of PEEKt was 12 %, the mass fraction of polyvinylpyrrolidone is 12%; pour the obtained PEEKt casting solution on a clean glass plate, scrape the film with a scraper with a thickness of 200 μm, and after volatilizing for 30s, put it into a coagulation bath, and the coagulation bath is super pure water to prepare PEEKt porous membrane;

[0027] (2) The PEEKt porous membrane was added to the hydrochloric acid solution of ammonium persulfate (the concentration of the hydrochloric acid solution was 2.5M, and the ...

Embodiment 3

[0030] Example 3: Synthesis of PANI / PEEK porous composite membrane

[0031] (1) Preparation of PEEKt porous membrane: the structural formula of polyaryletheramine (PEEKt) is shown in (I), wherein a=b=X=Y=1. Polyaryletheramine (PEEKt) and pore-forming agent polyvinylpyrrolidone were added to the organic solvent N-methylpyrrolidone, stirred until completely dissolved, and the PEEKt film casting liquid was prepared; in the PEEKt film casting liquid, the mass fraction of PEEKt was 12 %, the mass fraction of polyvinylpyrrolidone is 12%; pour the obtained PEEKt casting solution on a clean glass plate, scrape the film with a scraper with a thickness of 200 μm, and after volatilizing for 30s, put it into a coagulation bath, and the coagulation bath is super pure water to prepare PEEKt porous membrane;

[0032] (2) The PEEKt porous membrane was added to the hydrochloric acid solution of hydrogen peroxide (the concentration of the hydrochloric acid solution was 2.5M, and the concentrat...

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Abstract

The invention discloses a polyaniline / polyaryletherketone composite membrane with electrochemical response as well as a preparation method and application thereof, and belongs to the technical field of polymeric membrane surface modification and preparation. According to the invention, the PANI / PAEK porous membrane is integrally prepared, and the in-situ growth of PANI realizes the regulation and control of the PAEK surface micro-nano structure. The preparation process is simple and efficient, and regulation and control of the PANI micro-nano structure on the surface of the membrane are achieved. Oxidability and surface aggregation of inorganic particles are fully utilized, and enrichment and uniform growth of PANI on the surface of the inorganic particles are achieved. Meanwhile, the PANI on the surface realizes uniform covering of PAEK on the bottom layer, so that the hydrophilicity of the membrane is improved while the micro-nano structure on the surface is regulated and controlled. The method fully integrates the conductive characteristic and the surface enrichment characteristic of PANI, and has potential development space and application in the fields of membrane separation, oil-water separation, photocatalytic separation, electrified separation materials, pH response, electrified response and the like.

Description

technical field [0001] The invention belongs to the technical field of surface modification and preparation of polymer membranes, and in particular relates to a polyaniline / polyaryletherketone composite membrane with electrochemical response, a preparation method and applications thereof. Background technique [0002] Membrane separation technology is an efficient and energy-saving separation method, which is widely used in water treatment, food, medicine, environmental protection, chemical industry, metallurgy and other fields. With the development of industry, separation membranes need to have the advantages of hydrophilicity, solvent resistance and simple preparation. As a typical special engineering plastic, polyaryletherketone (PAEK) material has excellent thermal stability and good mechanical properties. At the same time, because of its good solvent resistance, it is widely used in the field of membrane separation. However, PAEK materials are difficult to process in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D67/00B01D69/02B01D69/12B01D71/60
CPCB01D67/0006B01D69/02B01D69/12B01D71/60B01D2325/36B01D2325/40Y02P20/10
Inventor 庞金辉林子瑜赵博骞张海博姜振华
Owner JILIN UNIV
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