Sulfonated polyether-ether-ketone/polyaniline modified halloysite nanotube mixed matrix membrane as well as preparation method and application thereof

A technology of halloysite nanotubes and sulfonated polyether ether ketone, which is applied in halloysite nanotube mixed matrix membranes and its preparation method and application field, to achieve enhanced compression resistance, simple and controllable preparation process, and modified conditions mild effect

Inactive Publication Date: 2018-03-13
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, sulfonated polyether ether ketone / polyaniline modified halloysite nanotube mixed matrix membrane and its application for gas separation have not been reported in the literature

Method used

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  • Sulfonated polyether-ether-ketone/polyaniline modified halloysite nanotube mixed matrix membrane as well as preparation method and application thereof
  • Sulfonated polyether-ether-ketone/polyaniline modified halloysite nanotube mixed matrix membrane as well as preparation method and application thereof
  • Sulfonated polyether-ether-ketone/polyaniline modified halloysite nanotube mixed matrix membrane as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The halloysite nanotube mixed matrix membrane modified by sulfonated polyether ether ketone / polyaniline is composed of a matrix of sulfonated polyether ether ketone and a composite material polyaniline modified halloysite nanotubes. Its thickness is 40 micrometers. The mass ratio of polyetheretherketone to polyaniline-modified halloysite nanotubes is 99.7:0.3, and the sulfonation degree of the sulfonated polyetheretherketone is 60%. Preparation of polyaniline-modified halloysite nanotubes: 0.5g of HNTs was dispersed in 100 ml of deionized water, and after sonication in an ultrasonic cleaning tank with a frequency of 20KHz for 60 minutes, a uniformly dispersed halloysite tube was obtained by stirring. Solution A: Take 1g of aniline and add it to 100ml of 2mol / L HCl solution to obtain solution B; mix solution A and solution B to obtain homogeneous suspension C. Add Suspension C into a three-necked flask, keep the temperature at 5°C, and continue to stir. Dissolve 2.5g of ...

Embodiment 2

[0039] The halloysite nanotube mixed matrix membrane modified by sulfonated polyether ether ketone / polyaniline is composed of a matrix of sulfonated polyether ether ketone and a composite material polyaniline modified halloysite nanotubes. Its thickness is 40 micrometers. The mass ratio of polyetheretherketone to polyaniline-modified halloysite nanotubes is 99.4:0.6, and the sulfonation degree of the sulfonated polyetheretherketone is 60%.

[0040] The polyaniline modified halloysite nanotubes were prepared by the same method as in Example 1.

[0041] Weigh 0.64 g of sulfonated polyether ether ketone and add it to 6 g of N,N-dimethylformamide solvent, and stir it magnetically at 25°C for 12 hours until all the polymers are dissolved to obtain homogeneous sulfonated polyether ether ketone Solution. Add 0.00384g of the polyaniline-modified halloysite nanotubes prepared above into 2g of N,N-dimethylformamide, and sonicate it in an ultrasonic cleaning tank with a frequency of 28KHz fo...

Embodiment 3

[0046] The halloysite nanotube mixed matrix membrane modified by sulfonated polyether ether ketone / polyaniline is composed of a matrix of sulfonated polyether ether ketone and a composite material polyaniline modified halloysite nanotubes. Its thickness is 40 micrometers. The mass ratio of polyetheretherketone to polyaniline-modified halloysite nanotubes is 99.1:0.9, and the sulfonation degree of the sulfonated polyetheretherketone is 60%.

[0047] The polyaniline-modified halloysite nanotubes were prepared by the same method as in Example 1.

[0048] Weigh 0.64 g of sulfonated polyether ether ketone and add it to 6 g of N,N-dimethylformamide solvent, and stir it magnetically at 25°C for 12 hours until all the polymers are dissolved to obtain homogeneous sulfonated polyether ether ketone Solution. Add 0.00576g of the polyaniline-modified halloysite nanotubes prepared above into 2g of N,N-dimethylformamide, and sonicate it in an ultrasonic cleaning tank with a frequency of 40KHz fo...

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Abstract

The invention discloses a sulfonated polyether-ether-ketone / polyaniline modified halloysite nanotube mixed matrix membrane as well as a preparation method and application thereof, and belongs to the field of membrane separation. The mixed matrix membrane comprises a sulfonated polyether-ether-ketone matrix and a composite material polyaniline modified halloysite nanotube, wherein the ratio of thehalloysite nanotube to polyaniline in the composite material is 1:(1-3); the mass ratio of the polyaniline modified halloysite nanotube to sulfonated polyether-ether-ketone is (0.1-5):(95-99.9). The preparation method comprises the following steps: performing in-situ polymerizing reaction on polyaniline in a purified halloysite nanotube water-phase dispersing liquid to obtain the polyaniline modified halloysite nanotube; performing solution blending on the polyaniline modified halloysite nanotube and sulfonated polyether-ether-ketone to obtain a casting solution; preparing the mixed matrix membrane according to a tape casting method. The preparation is simple, convenient and controllable in processes; the prepared mixed matrix membrane is applicable to CO2 / N2 separation, and is high in selectivity and permeability.

Description

Technical field [0001] The invention relates to a halloysite nanotube mixed matrix membrane modified by sulfonated polyether ether ketone / polyaniline and a preparation method and application thereof, and belongs to the technical field of membrane separation. Background technique [0002] The organic-inorganic hybrid matrix membrane has the advantages of both high molecular polymers and inorganic membrane materials, and has new advantages derived after mixing, and has gradually become the forefront of the membrane and membrane separation field. The combination of a variety of polymer matrix and inorganic material makes the mixed matrix membrane have great development potential and space in design and preparation. So far, the preparation methods of mixed matrix membranes mainly include physical blending method, sol-gel method and biomimetic mineralization method. The traditional physical blending method to prepare organic-inorganic hybrid matrix film is to directly disperse micron...

Claims

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Application Information

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IPC IPC(8): B01D69/14B01D69/02B01D71/66B01D71/60B01D71/02B01D67/00B01D53/22
CPCB01D53/228B01D67/0079B01D69/02B01D69/148B01D71/027B01D71/60B01D71/66B01D2256/22B01D2257/102B01D2325/24Y02C20/40
Inventor 王永洪张新儒侯蒙杰刘成岑
Owner TAIYUAN UNIV OF TECH
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