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Multifunctional amphiphilic comb-type polymer modifier, and preparation method and application thereof

A comb-type polymer and amphiphilic technology, applied in the field of multifunctional amphiphilic comb-type polymer modifiers, can solve the problems of general antifouling effect, etc., and achieve increased chemical inhomogeneity, simple conditions, and compatibility. good effect

Active Publication Date: 2016-05-04
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A simple anti-fouli

Method used

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  • Multifunctional amphiphilic comb-type polymer modifier, and preparation method and application thereof
  • Multifunctional amphiphilic comb-type polymer modifier, and preparation method and application thereof
  • Multifunctional amphiphilic comb-type polymer modifier, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: This example prepares amphiphilic comb copolymer

[0037] 1) Take 5g PEGMA, 3g PDMSMA, 2g KH570, 0.6g benzoyl peroxide, 30g butyl acetate. Divide 2,2-azobisisobutyronitrile into three parts, the first part is 0.028g, the second part is 0.144g, the third part is 0.028g, and butyl acetate is divided into two parts, the first part is 2g, the second portion is 8g.

[0038] 2) Dissolve the first part of benzoyl peroxide in the first part of butyl acetate, put it into the 2 Preheat the three-neck flask of the air blowing device to 70°C;

[0039]3) Dissolve all PEGMA, PDMSMA, KH570 and the second part of benzoyl peroxide in the second part of butyl acetate, put it into a constant pressure dropping funnel, add it dropwise into the three-necked flask of step 2), and Control the dripping within 2 hours, under the protection of nitrogen, after the polymerization reaction for 12 hours, add the third part of benzoyl peroxide, raise the temperature to 80°C, and keep ...

Embodiment 2

[0042] Embodiment 2: This example prepares amphiphilic comb copolymer

[0043] 1) Take 7g of PEGMA, 2g of PDMSMA, 1g of KH570, 0.3g of 2,2-azobisisobutyronitrile, and 30g of propylene glycol methyl ether acetate. Divide 2,2-azobisisobutyronitrile into three parts, the first part is 0.069g, the second part is 0.162g, and the third part is 0.069g. Propylene glycol methyl ether acetate is divided into two parts. One serving was 8.1g and the second serving was 21.9g.

[0044] 2) Dissolve the first part of 2,2-azobisisobutyronitrile in the first part of propylene glycol methyl ether acetate, and put it into the 2 Preheat the three-neck flask of the air blowing device to 80°C;

[0045] 3) Dissolve all PEGMA, PDMSMA, KH570, and the second part of 2,2-azobisisobutyronitrile in the second part of propylene glycol methyl ether acetate, put it into a constant pressure dropping funnel, and add it in step 2) by dropping In a three-neck flask, and control the dripping within 2 hours, und...

Embodiment 3

[0048] Embodiment 3: This example prepares amphiphilic comb copolymer

[0049] 1) Take 8g of PEGMA, 1g of PDMSMA, 0.4g of benzoyl peroxide, and 20g of methyl ethyl ketone. Divide benzoyl peroxide into three parts, the first part is 0.076g, the second part is 0.256g, the third part is 0.068g, methyl ethyl ketone is divided into two parts, the first part is 5g, and the second part is 5g. Two servings are 15g.

[0050] 2) Dissolve the first part of benzoyl peroxide in the first part of methyl ethyl ketone, put it into the 2 Preheat the three-neck flask of the air blowing device to 70°C;

[0051] 3) Dissolve all PEGMA, PDMSMA, KH570 and the second part of benzoyl peroxide in the second part of methyl ethyl ketone, put it into a constant pressure dropping funnel, and add it dropwise into the three-necked flask of step 2) , and controlled to finish dripping within 2 hours, under the protection of nitrogen, after 12 hours of polymerization reaction, add the third part of benzoyl p...

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Abstract

The invention discloses a multifunctional amphiphilic comb-type polymer modifier, and a preparation method and application thereof. The preparation method of the modifier comprises the following steps: by using polydimethylsiloxane monomethyl ether-methacrylate (PDMSMA), polyethyleneglycol monomethyl ether-methacrylate (PEGMA), gamma-methylacryloyloxypropyltrimethoxy silane (KH570), an initiator and a solvent as raw materials, carrying out free-radical polymerization reaction under the protection of nitrogen gas, and treating to obtain the modifier. The application method comprises the following steps: dissolving the modifier, a nanoparticle precursor and a membrane material in a solvent according to a certain mass ratio, and preparing the organic-inorganic composite modified ultrafiltration membrane by an in-situ process. The modified membrane surface has low-surface-energy hydrophilic-hydrophobic amphiphilic antifouling microzones, and has certain roughness scale. The preparation method of the modifier is simple. The membrane modification is easy to implement. The modified membrane has favorable antifouling effect, and can be used for sewage treatment.

Description

technical field [0001] The invention relates to a multifunctional amphiphilic comb polymer modifier, a preparation method and application thereof. Background technique [0002] Industrial sewage and urban domestic sewage are the two most important types of sewage resources. my country's urban sewage is about 800 million cubic meters per year, which is almost equal to the consumption of tap water. There are only 0.1% pollutants in this part of the water, and most of the rest exist in the form of water sources, becoming the second sewage resource in cities. The recycling of industrial sewage can not only save a large amount of fresh water resources, but also reduce sewage discharge and achieve the purpose of protecting the environment. [0003] Ultrafiltration membranes widely used in sewage treatment are prone to protein pollution: they are prone to specific interaction with organic biomass such as proteins in the solution, resulting in serious membrane fouling, reducing the...

Claims

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Application Information

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IPC IPC(8): C08F220/28C08F230/08C08F283/12C08F283/06C08F291/06C08L27/16C08L51/08C08L33/14C08J5/18C02F1/44
CPCC02F1/444C08F220/28C08F283/06C08F283/12C08J5/18C08L27/16C08J2327/16C08J2433/14C08F220/282C08F230/08C08L33/062C08L51/08
Inventor 张庆华张广法高帆何韧詹晓力陈丰秋
Owner ZHEJIANG UNIV
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