A kind of preparation method of conductive adsorption resin

A technology of adsorption resin and carbon nanotubes, which is applied in the direction of chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., to achieve the effect of simple preparation method, good effect, and improved hydrophobicity

Active Publication Date: 2018-10-02
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few studies on conductive adsorption resins at home and abroad. The difficulty in the preparation of conductive adsorption resins lies in the uniform dispersion of carbon nanotubes in the oil phase and how to ensure the stable polymerization reaction under the condition of carbon nanotubes.

Method used

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  • A kind of preparation method of conductive adsorption resin
  • A kind of preparation method of conductive adsorption resin
  • A kind of preparation method of conductive adsorption resin

Examples

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Effect test

example 1

[0027] a) Configuration of oil phase

[0028] Place 0.105 g of carbon nanotubes in 15 g of toluene for ultrasonic dispersion for 30 min, add 15 g of reactant composed of styrene and divinylbenzene after cooling, ultrasonically disperse for 10 min, add 0.17 g of dibenzoyl peroxide, stir and dissolve use;

[0029] b) Preparation of conductive adsorption resin

[0030] Add 90 g of an aqueous solution containing 1% polyvinyl alcohol and 5% sodium chloride to a three-necked flask, stir and insulate in an oil bath at 45 °C, add styrene, divinylbenzene, toluene, carbon nanotubes and diphenyl peroxide The oil phase composed of acyl, adjust the stirring speed until the size of the oil droplets is suitable, slowly raise the temperature to 80 °C for 4 h, and continue to slowly raise the temperature to 90 °C for 3.5 h. After the polymerization is completed, filter out the resin, rinse it with hot water for several times, replace it with ethanol and dry it, extract it with petroleum ethe...

example 2

[0033] a) Modification of carbon nanotubes

[0034] Add 60mL of water and 0.025g of sodium ethoxide into a beaker, stir to dissolve, add 0.20g of carbon nanotubes for ultrasonic dispersion for 10 min, then add 0.7 g of p-chloromethylstyrene and continue ultrasonication for 20 min, then stir in a water bath at 40 °C for 2 h , use a vacuum filter device to filter and wash off the residual reagent with ethanol, replace with distilled water to wash off the ethanol, take it out and dry it in an oven at 70 °C for later use;

[0035] b) Equipped with oil phase

[0036] Add 0.20 g of modified carbon nanotubes into the beaker, add 2.5 g of toluene for ultrasonic dispersion for 20 min, add 5 g of reactants composed of styrene and divinylbenzene after cooling, and add the initiator azo After diisobutyronitrile is stirred and dissolved, the oil phase is obtained;

[0037] c) Preparation of conductive adsorption resin

[0038] In a 250 mL three-neck flask, add an aqueous solution contai...

example 3

[0041] a) Modification of carbon nanotubes

[0042] Add 160 mL of water and 0.10 g of sodium ethoxide into the beaker, stir to dissolve, add 0.50 g of carbon nanotubes for ultrasonic dispersion for 10 min, then add 1.0 g of p-chloromethylstyrene and continue ultrasonication for 20 min, then stir in a water bath at 40 °C for 2 h , use a vacuum filter device to filter and wash off the residual reagent with ethanol, replace with distilled water to wash off the ethanol, take it out and dry it in an oven at 70 °C for later use;

[0043] b) Equipped with oil phase

[0044] Add 0.50 g of modified carbon nanotubes into the beaker, add 20 g of toluene for ultrasonic dispersion for 20 min, add 10 g of reactants composed of styrene and divinylbenzene after cooling, and add the initiator azo After diisobutyronitrile is stirred and dissolved, the oil phase is obtained;

[0045] c) Preparation of conductive adsorption resin

[0046]In a 250 mL three-neck flask, add an aqueous solution co...

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Abstract

The invention relates to a method of preparing electric-conductive resin through an in-situ polymerization method of doping comprehensively-modified carbon nano tubes (CNTs) to a monomer, comprising styrene and divinylbenzene, and then performing a polymerization reaction. The CNTs account for 0.1-15 mass% of the monomer. The method includes the step of: with the styrene as a monomer, the divinylbenzene as a crosslinker, methylbenzene as a pore forming agent, azodiisobutyronitrile or dibenzoyl peroxide as an initiator and polyvinyl alcohol and the like as a dispersing agent, adding the CNTs in situ during a suspension polymerization process in different ratios, thus obtaining the electric-conductive adsorption resin. The resin is used in the fields of adsorption and electric-desorption, can avoid requirement of large quantities of acidic, alkaline or organic solvents in a conventional resin adsorption-desorption process, and has a wide application prospect in the field of water treatment.

Description

technical field [0001] The invention relates to a preparation method of a conductive adsorption resin, in particular to a polymer adsorption resin mixed with carbon nanotubes and a preparation method thereof. technical background [0002] In recent years, scientists and researchers from all over the world have applied macroporous adsorption resins and ion exchange resins to water decolorization and removal of toxic organic pollutants, and have achieved remarkable results. The polymer resin has occupied an underestimated position in the field of water treatment. However, with the continuous development and progress of mankind, the shortcomings of the adsorption resin itself have become increasingly prominent: for example, a large amount of organic reagents or acids and bases are required as desorbents. Carbon nanotubes have become the adsorbent and electrode materials that have attracted much attention in recent years due to their rich nanopore structure, huge specific surfa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F212/36C08F2/44C08F2/20C08K9/04C08K7/24C08J9/28B01J20/26B01J20/28B01J20/30C02F1/28
CPCB01J20/261B01J20/28011C02F1/285C08F212/08C08J9/28C08J2325/08C08K7/24C08K9/04C08K2201/004C08K2201/011C08F212/36C08F2/44C08F2/20
Inventor 高冠道丁杰
Owner NANKAI UNIV
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