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A kind of high flux polyphenylene ether microfiltration membrane and preparation method thereof

A polyphenylene ether, microfiltration membrane technology, applied in chemical instruments and methods, ultrafiltration, membrane technology and other directions, can solve the problems of high porosity, complex preparation process, and good permeability of microfiltration membranes, and achieve membrane permeability. Good permeability, simple preparation process and equipment, good repeatability

Active Publication Date: 2017-06-09
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention lies in the problems of low water flux and complex preparation process for preparing high-flux polyphenylene ether microfiltration membranes in the prior art, and then provides a high-flux polyphenylene ether microfiltration membrane and The preparation method is to use brominated polyphenylene ether as a raw material, and adopt the combination technology of breath pattern method and colloidal crystal template method to prepare a brominated polyphenylene ether microfiltration membrane with a binary pore structure. The microfiltration membrane pore High efficiency, good permeability, can achieve rapid interception of particles, algae and other substances in sewage

Method used

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  • A kind of high flux polyphenylene ether microfiltration membrane and preparation method thereof
  • A kind of high flux polyphenylene ether microfiltration membrane and preparation method thereof
  • A kind of high flux polyphenylene ether microfiltration membrane and preparation method thereof

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preparation example Construction

[0038] The preparation method of the titanium dioxide colloidal crystal template is the same as the silica colloidal crystal template, wherein what adopts is the titanium dioxide colloidal dispersion liquid, and the raw material in the described titanium dioxide colloidal dispersion liquid is the volume ratio of ethyl orthotamate, 1:3:3.85:80, Water and hydrochloric acid (36wt%-38wt%) are added to the isopropanol solution or absolute ethanol.

[0039] The size of the colloidal crystal template used in the present invention is: 1cm×1cm×200nm˜3cm×3cm×2.1 μm.

[0040]The high-throughput polyphenylene ether microfiltration membrane of the present invention adopts the combination technology of the breath pattern method and the colloidal crystal template method, wherein the colloidal crystal template method refers to coating the brominated polyphenylene ether solution on the surface of the colloidal crystal template , and then adopt the breath pattern method to form micropores, and ...

Embodiment 1

[0042] The high-throughput polyphenylene ether microfiltration membrane of this embodiment includes a polyphenylene ether microfiltration membrane body and filtration pores passing through the polyphenylene ether microfiltration membrane body, and the pore diameter at one end of the filtration micropore is 2.5 μm. The pore diameter at the other end is 200 nm, and the thickness of the polyphenylene ether microfiltration membrane body is 4.1 μm.

[0043] The above-mentioned high-throughput polyphenylene ether microfiltration membrane adopts a preparation method using the combination technology of the breath pattern method and the colloidal crystal template method, including the following steps:

[0044] The colloidal crystal template used in this embodiment is a silica colloidal crystal template with an average particle diameter of 200 nm on the surface.

[0045] Add 100 mg of brominated polyphenylene ether powder into 1 g of carbon disulfide solvent, and fully dissolve to form ...

Embodiment 2

[0052] The high-throughput polyphenylene ether microfiltration membrane of this embodiment includes a polyphenylene ether microfiltration membrane body and filtration pores that run through the polyphenylene ether microfiltration membrane body. The diameter of one end of the filtration micropores is 2 μm, and the other The pore diameter at one end is 300 nm, and the thickness of the polyphenylene ether microfiltration membrane body is 4.2 μm.

[0053] The above-mentioned high-throughput polyphenylene ether microfiltration membrane adopts a preparation method using the combination technology of the breath pattern method and the colloidal crystal template method, including the following steps:

[0054] The colloidal crystal template used in this embodiment is a silica colloidal crystal template with an average particle diameter of 300 nm on the surface.

[0055] Add 150 mg of brominated polyphenylene ether into 1 g of carbon disulfide solvent and fully dissolve to form a bromina...

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Abstract

The present invention relates to a high-throughput polyphenyl ether micro-filtration membrane, which comprises a polyphenyl ether micro-filtration membrane body and a filtration micro-pore configured to pass through the polyphenyl ether micro-filtration membrane body. The aperture of one end of the filtration micro-pore is 1.2-3 [mu]m, and the aperture of the other end of the filtration micro-pore is 200-700 nm. The thickness of the polyphenyl ether micro-filtration membrane body is 4-6 [mu]m. According to the technical scheme of the high-throughput polyphenyl ether micro-filtration membrane and the preparation method thereof in the invention, the bromide polyphenyl ether is adopted as the raw material, while the breath figure method and the colloidal crystal template method are combined. On the above basis, the invention provides a method for preparing a bromide polyphenyl ether micro-filtration membrane of a dual-size cellular structure. The obtained micro-filtration membrane is high in porosity and good in permeability, and can be used for quickly cutting off particles, algae and other substances in the sewage.

Description

technical field [0001] The invention relates to a brominated polyphenylene ether microfiltration membrane with a binary pore structure, in particular to a carbon disulfide solution using brominated polyphenylene ether, which is prepared by combining the breath pattern method and the colloidal crystal template method with an upper surface of Brominated polyphenylene ether microfiltration membrane with large pores and small pores on the lower surface, and the preparation method. Background technique [0002] With the increasingly serious problems of water pollution and environmental pollution, the world today is facing an increasingly tense situation of energy shortage and fresh water resources. Membrane separation technology has a wide range of applications in the field of water treatment and has broad market prospects. As drinking water quality sanitation standards become increasingly stringent, membrane separation technology with high-efficiency decontamination performance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D69/02B01D71/52B01D67/00B01D61/14
Inventor 丛海林袁华于冰
Owner QINGDAO UNIV
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