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Strong-basicity carbon nano tube-graphene composite ion exchange resin material and preparation method thereof

An ion exchange resin and graphene composite technology, applied in ion exchange, anion exchange, organic anion exchanger, etc., can solve the problems of uneven dispersion, uneven dispersion of graphene and carbon nanotubes, and easy to agglomerate.

Active Publication Date: 2020-05-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These preparation methods usually face problems such as uneven dispersion of graphene and carbon nanotubes in the matrix, and easy agglomeration, which limits the improvement of the performance of the composite material and limits its application.
[0004] Whether it is graphene or carbon nanotubes, due to their own small size effect and surface effect, coupled with the strong van der Waals force, it is easy to agglomerate inside the polymer matrix, resulting in uneven dispersion in the matrix; on the other hand, due to The hydrophobicity and chemical inertness of the surface of graphene and carbon nanotubes lead to their poor compatibility with the polymer matrix, and the interface bonding strength of the composite material is relatively low, so that the nanomaterials cannot play a good role in the material

Method used

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  • Strong-basicity carbon nano tube-graphene composite ion exchange resin material and preparation method thereof
  • Strong-basicity carbon nano tube-graphene composite ion exchange resin material and preparation method thereof
  • Strong-basicity carbon nano tube-graphene composite ion exchange resin material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Take 1g of carbon nanotubes, add 200ml of acid solution (the volume ratio of concentrated sulfuric acid to concentrated nitric acid is 3:1) and reflux for oxidation for 20min. After the oxidation is completed, the reaction solution is filtered, washed with water for 5 times, and vacuum-dried at 60° C. to obtain oxidized carbon nanotubes. Graphene oxide was prepared by the Hummers method.

[0074] Mix carbon oxide nanotubes and graphene oxide powder at a mass ratio of 1:3, disperse them into 100ml of a dispersion with a concentration of 1mg / ml by ultrasonic or stirring, add an alkali solution with a concentration of 1mmol / L, and adjust the pH to 9 to prepare To the mixed carboxylate solution of oxidized carbon nanotubes and graphene oxide, 0.2 g of tetraoctyl ammonium bromide and 1.0 g of p-chloromethyl styrene were added, and the mixture was stirred and reacted in an oil bath at 98° C. for 3 h. After the reaction is complete, cool to room temperature, add 100ml of chlo...

Embodiment 2

[0079] Take 1g of carbon nanotubes, add 200ml of acid solution (the volume ratio of concentrated sulfuric acid to concentrated nitric acid is 3:1) and reflux for oxidation for 20min. After the oxidation is completed, the reaction solution is filtered, washed with water for 5 times, and vacuum-dried at 60° C. to obtain oxidized carbon nanotubes. Graphene oxide was prepared by the Hummers method.

[0080] Mix carbon oxide nanotubes and graphene oxide powder at a mass ratio of 1:3, disperse them into 100ml of a dispersion with a concentration of 1mg / ml by ultrasonic or stirring, add an alkali solution with a concentration of 1mmol / L, and adjust the pH to 9 to prepare To the mixed carboxylate solution of oxidized carbon nanotubes and graphene oxide, 0.2 g of tetraoctyl ammonium bromide and 1.0 g of p-chloromethyl styrene were added, and the mixture was stirred and reacted in an oil bath at 98° C. for 3 h. After the reaction is complete, cool to room temperature, add 100ml of carb...

Embodiment 3

[0085] Take 1g of carbon nanotubes, add 200ml of acid solution (the volume ratio of concentrated sulfuric acid to concentrated nitric acid is 3:1) and reflux for oxidation for 20min. After the oxidation is completed, the reaction solution is filtered, washed with water for 5 times, and vacuum-dried at 60° C. to obtain oxidized carbon nanotubes. Graphene oxide was prepared by the Hummers method.

[0086] Mix carbon oxide nanotubes and graphene oxide powder at a mass ratio of 1:3, disperse them into 100ml of a dispersion with a concentration of 1mg / ml by ultrasonic or stirring, add an alkali solution with a concentration of 1mmol / L, and adjust the pH to 9 to prepare To the mixed carboxylate solution of oxidized carbon nanotubes and graphene oxide, 0.2 g of tetraoctyl ammonium bromide and 1.0 g of p-chloromethyl styrene were added, and the mixture was stirred and reacted in an oil bath at 98° C. for 3 h. After the reaction is complete, cool to room temperature, add 100ml of chlo...

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Abstract

The invention relates to a strong-basicity carbon nano tube-graphene composite ion exchange resin material and a preparation method thereof. In the strong-basicity carbon nano tube-graphene compositeion exchange resin material, a matrix and carbon nanotubes / graphene are combined in a covalent bond form, and the strong-basicity carbon nano tube-graphene composite ion exchange resin material comprises the following components in parts by weight: (a) 75-90 parts of a polymeric monomer; (b) 5-15 parts of a comonomer; (c) 0.1 to 10 parts of carbon nanotubes; and (d) 0.1 to 10 parts of graphene. According to the technical scheme, the thermal decomposition temperature and the swelling resistance of the composite ion exchange resin are well improved, and the method can be applied to industrial production and application of strong-basicity composite ion exchange resin materials in the future.

Description

technical field [0001] The invention relates to a strongly basic carbon nanotube-graphene composite ion exchange resin material and a preparation method thereof. Background technique [0002] Styrene ion exchange resin is an important solid catalyst, which has been widely used in the field of industrial catalysis, such as esterification, alkylation and hydrolysis reactions. With the continuous improvement of application technology, higher requirements are put forward for the performance of resin in industrial production and application, such as high temperature resistance, high pressure resistance, high radiation resistance, etc. In order to solve the problem of poor temperature resistance of styrene-based resins, many researchers have proposed adding nanomaterials into the resin to improve its various properties. [0003] Graphene is a carbon atom with sp 2 A new material with a single-layer sheet structure composed of hybrid orbitals has excellent physical and chemical p...

Claims

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Application Information

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IPC IPC(8): B01J41/14B01J41/05C08F292/00C08F212/14
CPCB01J41/14B01J41/05C08F292/00C08F212/14Y02E60/50
Inventor 金铭杨为民何文军谢同
Owner CHINA PETROLEUM & CHEM CORP
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