Preparation method for nanocarbon fluid

A nanofluid and nanocarbon technology, applied in chemical instruments and methods, fibrous fillers, coatings, etc., can solve the problems of ineffective control of reactions and complex reaction processes, achieve a good reaction environment, increase -COOH content, The effect of increasing the grafting rate

Inactive Publication Date: 2013-02-13
WUHAN UNIV OF TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the reaction process of this modification method is complicat

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  • Preparation method for nanocarbon fluid

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Embodiment 1

[0038] 1) Concentrate H 2 SO 4 , Concentrated HNO 3 Prepare an acidic oxidizing solution in a volume ratio of 3:1 and add it to an Erlenmeyer flask containing the original carbon black to obtain an oxidized carbon black mixed solution; ultrasonicate the mixed solution until the carbon material is completely oxidized to obtain an oxidized carbon black reaction solution; The oxidized carbon black reaction solution is dialyzed and dried to obtain oxidized carbon black particles for use.

[0039] 2) Take 0.2g of oxidized carbon black, slowly dissolve it in deionized water, magnetically stir for 2h, ultrasonic for 30min, and then magnetically stir for 24h to obtain a uniformly dispersed oxidized carbon black suspension; prepare a HCl, NaOH solution with a concentration of 0.01 mol / L, Add excess NaOH solution dropwise to the carbon oxide material suspension, react for 24 hours to obtain the alkaline carbon oxide material suspension; add HCl dropwise to the alkaline carbon oxide material...

Embodiment 2

[0043] 1) Concentrate H 2 SO 4 , Concentrated HNO 3 Prepare an acidic oxidizing solution at a volume ratio of 3:1 and add it to an Erlenmeyer flask containing original graphene to obtain a graphene oxide mixed solution; ultrasonicate the mixed solution until the graphene oxidation is complete to obtain a graphene oxide reaction solution; The graphene oxide reaction solution is dialyzed and dried to obtain graphene oxide particles for use.

[0044] 2) Take 0.2g of graphene oxide, slowly dissolve it in deionized water, magnetically stir for 2h, ultrasonic for 30min, and then magnetically stir for 24h to obtain a uniformly dispersed graphene oxide suspension; prepare a solution of HCl and NaOH with a concentration of 0.01 mol / L, Add excess NaOH solution dropwise to the graphene oxide suspension, react for 24h to obtain a basic graphene oxide suspension; add HCl dropwise to the alkaline graphene oxide suspension, measure the pH, and stop when the pH=7 Titration, calculate the content...

Embodiment 3

[0048] 1) Concentrate H 2 SO 4 , Concentrated HNO 3 According to the volume ratio of 3:1, it is made into an acidic oxidizing solution, which is added to an Erlenmeyer flask containing original nano graphite to obtain a graphite oxide mixed solution; the mixed solution is sonicated until the graphite is completely oxidized to obtain a graphite oxide reaction solution; the graphite oxide is reacted The solution is dialyzed and dried to obtain graphite oxide particles for use.

[0049] 2) Take 0.2g graphite oxide, slowly dissolve it in deionized water, magnetically stir for 2h, ultrasonic for 30min, and then magnetically stir for 24h to obtain a uniformly dispersed graphite oxide suspension; prepare a 0.01 mol / L HCl, NaOH solution, and remove excess The NaOH solution was added dropwise to the graphite oxide suspension and reacted for 24 hours to obtain an alkaline graphite oxide suspension; HCl was added dropwise to the alkaline carbon oxide material suspension, the pH was measured,...

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Abstract

The invention relates to a preparation method for a novel nanocarbon fluid. The method comprises the following steps: adding the original nanocarbon material into strongly acidic oxidation liquid (the volume ratio of concentrated sulfuric acid to concentrated nitric acid is 3:1) to obtain an active carbon oxide material with the surface containing -COOH; adding amino-containing polyether amine serving as a modifier into the suspension liquid of the active carbon oxide material under the conditions of ultrasonic and magnetic stirring, performing acid-base reaction on the amino and carboxyl on the interface of the polyether amine and the carbon oxide material and grafting the polyether amine and the carbon oxide; and adjusting the type and the using amount of the polyether amine to obtain the nanocarbon fluid. The method is simple, effectively controls and increases the grafting ratio of the polyether amine on the surface of the nanocarbon material and is applicable to synthesis of various carbon material fluids. The nanocarbon fluid material prepared by the method has hydrophilicity, lipophilicity and good application prospect in aspects of coating, plastic, rubber, functional materials and the like.

Description

Technical field [0001] The invention relates to the field of modified carbon material functional materials, in particular to a method for preparing a novel nano-carbon fluid. Background technique [0002] There are many types of nano-carbon materials, mainly nano-carbon materials such as nano-carbon black, nano-graphite, nano-diamond, graphene, carbon nanotube or nano-carbon fiber. Among them, nano-carbon black, as an ancient industrial product, is mainly used as a reinforcing agent for rubber, ink, paint and coloring agent for plastics. With the development of new nano-carbon materials and polymer-based composite materials, nano-carbon materials are widely used as reinforcing materials for polymer-based composite materials, which can effectively improve the mechanical and electrical properties of the composite materials. However, nano-carbon material particles have a small particle size and a large specific surface area, which is very easy to agglomerate. When preparing nano-c...

Claims

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Application Information

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IPC IPC(8): C08K9/04C08K9/02C08K3/04C08G65/00D06M15/53C09C1/56C09C1/46C09C1/44C09C3/10C09C3/06C08L101/00C09D7/12
Inventor 王雁冰陈娜李文静周晨光彭睿魏冲程龙山黄志雄
Owner WUHAN UNIV OF TECH
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