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Modified polypropylene hollow fiber filter membrane for environmental detection and preparation method of modified polypropylene hollow fiber filter membrane

An environmental detection, fiber membrane technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve the problems of insufficient bonding force between the coating and polypropylene hollow fibers, falling off, and affecting the service life of the filter membrane. , to achieve the effect of improving antifouling performance, enhancing bonding force and improving surface performance

Inactive Publication Date: 2017-09-19
安徽众诚环境检测有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the modification of polypropylene hollow fiber membrane mostly focuses on the improvement of its hydrophilic performance, but there are few reports on its antifouling performance, and the current coating and polypropylene hollow fiber are not well bonded, often during use. The phenomenon of shedding occurs, which affects the service life of the filter membrane

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A modified polypropylene hollow fiber filter membrane for environmental detection, comprising a polypropylene hollow fiber membrane and a coating coated on the surface of the polypropylene hollow fiber membrane;

[0027] Among them, the raw materials of the polypropylene hollow fiber membrane include: polypropylene particles, glycerol triacetate, polyethylene glycol methacrylate, p-aminophenol, aminocyclohexanol, and film-forming aids; the raw materials of the coating include: formazan Diethylaminoethyl acrylate, dopamine hydrochloride, polyhydroxyphytic acid, taurine, trishydroxymethylaminomethane;

[0028] The modified polypropylene hollow fiber filter membrane for environmental detection is prepared by the following steps:

[0029] S1. Weigh polypropylene particles, glycerol triacetate, polyethylene glycol methacrylate, p-aminophenol, aminocyclohexanol, and film-forming aids, stir and mix evenly, stir at low speed after the materials are dissolved, and vacuum defoam ...

Embodiment 2

[0034] A modified polypropylene hollow fiber filter membrane for environmental detection, comprising a polypropylene hollow fiber membrane and a coating coated on the surface of the polypropylene hollow fiber membrane, the coating thickness being 100nm;

[0035] Among them, the raw materials of the polypropylene hollow fiber membrane include by weight: 80 parts of polypropylene particles, 20 parts of glycerol triacetate, 30 parts of polyethylene glycol methacrylate, 15 parts of p-aminophenol, and 5 parts of aminocyclohexanol , 20 parts of film-forming aids;

[0036] The raw materials of the coating include by weight: 6 parts of diethylaminoethyl methacrylate, 0.5 parts of dopamine hydrochloride, 5 parts of polyhydroxyphytic acid, 2 parts of taurine and 30 parts of trishydroxymethylaminomethane. ;

[0037] The modified polypropylene hollow fiber filter membrane for environmental detection is prepared by the following steps:

[0038] S1. Weigh polypropylene particles, glycerol...

Embodiment 3

[0043]A modified polypropylene hollow fiber filter membrane for environmental detection, comprising a polypropylene hollow fiber membrane and a coating coated on the surface of the polypropylene hollow fiber membrane, the coating thickness being 80nm;

[0044] Among them, the raw materials of the polypropylene hollow fiber membrane include by weight: 100 parts of polypropylene particles, 50 parts of glycerol triacetate, 10 parts of polyethylene glycol methacrylate, 10 parts of p-aminophenol, and 12 parts of aminocyclohexanol , 100 parts of film-forming aids;

[0045] The raw materials of the coating include by weight: 5 parts of diethylaminoethyl methacrylate, 5 parts of dopamine hydrochloride, 2 parts of polyhydroxyphytic acid, 4 parts of taurine and 10 parts of trishydroxymethylaminomethane. ;

[0046] The modified polypropylene hollow fiber filter membrane for environmental detection is prepared by the following steps:

[0047] S1. Weigh polypropylene particles, glycerol ...

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PUM

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Abstract

The invention discloses a modified polypropylene hollow fiber filter membrane for environmental detection. The modified polypropylene hollow fiber filter membrane for environmental detection comprises a polypropylene hollow fiber membrane and a coating which coats the surface of the polypropylene hollow fiber membrane, wherein the polypropylene hollow fiber membrane comprises the following raw materials: polypropylene granules, glyceryl triacetate, poly(ethylene glycol) methyl ether methacrylate, p-aminophenol, aminocyclohexanol, and a film coalescence aid; and the coating comprises the following raw materials: diethylaminoethyl methacrylate, dopamine hydrochloride, poly-hydroxy phytic acid, taurine and trishydroxymethylaminomethane. The invention further discloses a preparation method of the modified polypropylene hollow fiber filter membrane for environmental detection. By reasonable blending of the components of the polypropylene hollow fiber filter membrane and the components of the coating and technical procedures, while the hydrophilic performance of the polypropylene hollow fiber filter membrane is guaranteed, the antifouling property and the stability are improved, the binding force of the coating and the polypropylene hollow fiber filter membrane is further increased, and the service life of the filter membrane is prolonged.

Description

technical field [0001] The invention relates to the technical field of polypropylene hollow fiber membranes, in particular to a modified polypropylene hollow fiber membrane for environmental detection and a preparation method thereof. Background technique [0002] Membrane technology is an emerging separation technology. It is widely used in the separation, concentration, purification and purification of liquids. It is an important technology for sustainable development that saves energy, develops new resources and solves environmental pollution problems. Membrane technology is superior to traditional separation technology because it has the advantages of high separation precision, fast separation speed, low energy consumption, and long service life, and the filter membrane material determines the efficiency and separation precision of membrane separation technology. [0003] Polypropylene hollow fiber filter membrane is favored and applied by people because of its rich sour...

Claims

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Application Information

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IPC IPC(8): B01D71/26B01D63/02B01D67/00C02F1/44
Inventor 吕光辉孙小妹
Owner 安徽众诚环境检测有限公司
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