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A kind of ph responsive oil-water separation antibacterial material and preparation method thereof

A technology of oil-water separation and antibacterial materials, applied in separation methods, liquid separation, chemical instruments and methods, etc., can solve the problems of reducing separation efficiency, material loss, biofouling, etc., and achieve simple preparation process, low energy consumption, good Anti-bacterial effect

Active Publication Date: 2019-07-09
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, there are many bacteria and other microorganisms or other pollutants in the actual oil-water separation environment, and it is easy to form biofouling on the surface of the material when the separation material is used for oil-water separation, resulting in material loss and reduced separation efficiency

Method used

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  • A kind of ph responsive oil-water separation antibacterial material and preparation method thereof
  • A kind of ph responsive oil-water separation antibacterial material and preparation method thereof
  • A kind of ph responsive oil-water separation antibacterial material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1, preparation of responsive oil-water separation fabric with superhydrophobic antibacterial properties

[0029] (1) Preparation of pH-responsive antibacterial polymer: 30g of N,N-dimethylaminoethyl methacrylate, 20g of methacryloyloxyethyl n-dodecyldimethylammonium bromide ( Homemade), 40g of 2-perfluorohexyl ethyl acrylate and 10g of hydroxyethyl acrylate were evenly mixed in a container, 100g of butyl acetate and 100g of acetonitrile were added thereto, then 1.2g of AIBN was added, and stirred at 75°C Insulated for 6 hours to obtain responsive polymer P1.

[0030] (2) In terms of weight ratio, 14g of responsive polymer P1, 0.5g of HDI and 0.3g of dibutyltin dilaurate were dissolved in 39.6g of butyl acetate and 39.6g of acetonitrile, and ultrasonically dispersed for 15 minutes. Then add 6g of PUF NPs and continue to ultrasonically disperse for 10 minutes to obtain a sprayable mixture.

[0031] (3) Spray the mixed solution obtained in step (2) evenly on the ...

Embodiment 2

[0034] Example 2, preparation of responsive oil-water separation stainless steel omentum with superhydrophobic antibacterial properties

[0035] (1) Preparation of pH-responsive antibacterial polymer: 40g of N,N-dimethylaminoethyl methacrylate, 20g of methacryloyloxyethyl n-dodecyldimethylammonium bromide ( Homemade), 35g of (2-perfluorohexyl) ethyl methacrylate and 5g of hydroxyethyl methacrylate are uniformly mixed in a container, 100g of butyl acetate and 100g of acetonitrile are added thereto, and then 1.5g of BPO was stirred and kept at 80°C for 10 hours to obtain responsive polymer P2.

[0036] (2) In terms of weight ratio, 20 g of responsive polymer P2, 0.7 g of HDI and 0.5 g of dibutyltin dilaurate were dissolved in 42 g of butyl acetate and 42 g of acetonitrile, and ultrasonically dispersed for 15 minutes. Then add 9g of PUF NPs and continue to ultrasonically disperse for 10 minutes to obtain a sprayable mixture.

[0037] (3) Spray the mixed solution obtained in ste...

Embodiment 3

[0040] Example 3, preparation of responsive oil-water separation sponge with superhydrophobic antibacterial properties

[0041] (1) Preparation of pH-responsive antibacterial polymer: 50g of N,N-dimethylaminoethyl methacrylate, 20g of methacryloyloxyethyl n-dodecyldimethylammonium bromide ( Homemade), 25g of [N-methyl perfluorohexanesulfonamido] ethyl acrylate and 5g of hydroxyethyl acrylate are uniformly mixed in a container, 90g of butyl acetate and 90g of acetonitrile are added thereto, and then 1.3 g of AIBN, stirred and incubated at 80°C for 6h to obtain the responsive polymer P3.

[0042] (2) In terms of weight ratio, 18g of responsive polymer P3, 0.72g of IPDI and 0.4g of dibutyltin dilaurate were dissolved in 40g of butyl acetate and 40g of acetonitrile, and ultrasonically dispersed for 10 minutes. Then add 7.7g PUF NPs and continue to ultrasonically disperse for 5 minutes to obtain a sprayable mixture.

[0043] (3) Spray the mixed solution obtained in step (2) evenl...

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Abstract

The invention discloses a pH-responsive oil-water separation antibacterial material and a preparation method thereof. The method comprises the following steps: (1) dissolving the pH-responsive antibacterial polymer, cross-linking agent and catalyst in an organic solvent, and ultrasonically dispersing; (2) adding organic polyurea-aldehyde nanoparticles to the above-mentioned ultrasonic dispersion, and continuing to ultrasonically Dispersion; (3) Spray the prepared dispersion solution on the separation material by spraying method, and dry it at room temperature; (4) Dry the separation material initially dried at room temperature at 100-120°C to obtain a pH-responsive Oil-water separation material. The preparation method disclosed by the invention is simple and controllable, and the prepared oil-water separation material has pH responsiveness, can realize selective separation of different oil-water mixtures, and has broad industrial application prospects.

Description

technical field [0001] The invention belongs to the field of material surface modification, and in particular relates to a pH-responsive oil-water separation antibacterial material and a preparation method thereof. Background technique [0002] In recent years, petrochemical, metal smelting, leather and tanning, textile printing and dyeing, food processing and other industrial fields have produced a large amount of oily wastewater every year, which has become an important source of pollution worldwide. The ecological disasters and crude oil waste caused by frequent oil spills at sea have also aroused people's increasing concern and anxiety. For example, during the Gulf War in 1991, more than 1 million tons of crude oil flowed into the Persian Gulf due to the destruction of oil depots, making it the largest crude oil spill in the world. A thick layer of oil floated on the surface of the sea, poisoning or suffocating marine life in the area. In 2013, crude oil spilled in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D17/022C02F1/40C08F220/22C08F220/34C08F220/28C08F220/38
CPCB01D17/02C02F1/40C08F220/22C08F220/34C08F220/281C08F220/387
Inventor 詹晓力付昱晨张庆华陈丰秋
Owner ZHEJIANG UNIV