Preparation method of supermolecule hollow fiber membrane

A supramolecular and fiber membrane technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve the problems of low strength and poor pollution resistance of hollow fiber membranes, increase hydrophilicity and overcome easy peeling Effect

Inactive Publication Date: 2019-05-17
浙江清创环保新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects of low strength and poor pollution resistance of existing hollow fiber membranes, the purpose of

Method used

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  • Preparation method of supermolecule hollow fiber membrane
  • Preparation method of supermolecule hollow fiber membrane
  • Preparation method of supermolecule hollow fiber membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 2 groups of supramolecular reinforcement reinforced liquid crystal supramolecular / polyethersulfone hollow fiber membrane:

[0036] 1. Prepare polyethersulfone casting solution and let stand for defoaming;

[0037] 2. Combine hydroxyl carbon nanotubes, liquid crystal supramolecules, polyethersulfone, etc. with high temperature and high pressure sputtering solution;

[0038] 3. Set the sputter spinning conditions, including: the sputter pressure is 1 MPa, the sputter speed is 5m / s, the sputter spinning equipment is turned on, and the supramolecular yarn is spun by air spinning technology;

[0039] 4. Turn on the hollow fiber spinning machine, and under a certain temperature and pressure, make the casting solution pass through the spinneret, enter the coagulation bath with the supramolecular yarn at the same time, and undergo phase transformation to form a film. The supramolecule wraps the polyethersulfone, and at the same time wraps the hydroxyl carbon nanotube and embed...

Embodiment 2

[0041] Whole network supramolecular reinforcement reinforced liquid crystal supramolecular / polysulfone hollow fiber membrane:

[0042] 1. Prepare polysulfone casting solution, let it stand for defoaming;

[0043] 2. Combine hydroxyl carbon nanotubes, liquid crystal supramolecules, polysulfone, etc. with high temperature and high pressure sputtering solution;

[0044] 3. Set the sputter spinning conditions, including: the sputter pressure is 5MPa, the sputter speed is 100 m / s, the sputter spinning equipment is turned on, and the supramolecular yarn is spun by air spinning technology;

[0045] 4. Turn on the hollow fiber spinning machine, and under a certain temperature and pressure, make the casting solution pass through the spinneret, enter the coagulation bath with the supramolecular yarn at the same time, and undergo phase transformation to form a film. The supramolecule wraps the polysulfone, and at the same time wraps the hydroxyl carbon nanotube and embeds it in the fibe...

Embodiment 3

[0047] Multi-head supramolecular reinforcement reinforced liquid crystal supramolecular / polysulfone hollow fiber membrane:

[0048] 1. Prepare polysulfone casting solution, let it stand for defoaming;

[0049] 2. Combine hydroxyl carbon nanotubes, liquid crystal supramolecules, polysulfone, etc. with high temperature and high pressure sputtering solution;

[0050] 3. Set the sputter spinning conditions, including: the sputter pressure is 20MPa, the sputter speed is 50 m / s, the sputter spinning equipment is turned on, and the supramolecular yarn is spun by air spinning technology;

[0051] 4. Turn on the hollow fiber spinning machine, and under a certain temperature and pressure, make the casting solution pass through the spinneret, enter the coagulation bath with the supramolecular yarn at the same time, and undergo phase transformation to form a film. The supramolecule wraps the polysulfone, and at the same time wraps the hydroxyl carbon nanotube and embeds it in the fiber t...

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Abstract

The invention discloses a preparation method of a supermolecule hollow fiber membrane, and belongs to the field of separation membrane manufacturing. An inorganic particle filling and fiber blending technology and a traditional nonsolvent phase conversion membrane preparation process are combined. Compared with the prior art, the method has the following advantages that the intensity is extremelyhigh; the hydrophilicity is improved; the hydrophilicity is given to the supermolecule membrane through hydroxy carbon nanotubes; the supermolecule membrane is wrapped and protected by hydrophilic radical containing supermolecules, so that the defect that the traditional inorganic particles are easy to peel is overcome.

Description

technical field [0001] The invention relates to a preparation method of a separation membrane, in particular to a preparation method of a supramolecular hollow fiber membrane, and belongs to the field of separation membrane manufacture. Background technique [0002] Hollow fiber membrane separation technology is currently the most widely used separation membrane form in membrane water treatment technology. It has the advantages of high packing density, small footprint, high separation efficiency, stable operation, easy operation and low cost. It can be used for sewage treatment and Reuse, purification of municipal water supply, separation, concentration and purification of solutions, etc., have been widely used in environmental protection, energy, petroleum, chemical, food, medical and other fields. Existing hollow fiber membranes mainly use organic materials such as polyvinylidene fluoride (PVDF), polysulfone (PSF), etc., and the fiber strength is low; in addition, organic ...

Claims

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Application Information

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IPC IPC(8): B01D67/00B01D69/02B01D69/08B01D71/68
Inventor 杨长潮王薇
Owner 浙江清创环保新材料有限公司
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