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Preparing method for modified oxidized graphene

A technology of stone oxide and graphene, which is applied in the field of preparation of modified graphene oxide, can solve the problems of poor dispersion and compatibility, and achieve the effect of good compatibility and good dispersion

Inactive Publication Date: 2015-11-18
SUZHOU ZHUOWEI ENTERPRISE MANAGEMENT CONSULTING CO LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

There are various preparation methods for graphene products, but there are some disadvantages, such as dispersion in organic solvents and poor compatibility with polymers

Method used

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  • Preparing method for modified oxidized graphene

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Embodiment Construction

[0012] The present invention is further illustrated by the following examples: According to the following examples, the present invention can be better understood. However, those skilled in the art can easily understand that the specific material ratios, process conditions and results described in the examples are only used to illustrate the present invention, and should not and will not limit the present invention described in the claims.

[0013] (1) Take 1g of graphite powder as the graphite raw material, mix it with 10ml of concentrated sulfuric acid and 3g of potassium permanganate evenly, place it in a closed reaction vessel, stir and react for 6h under the condition of heating in a water bath at 40°C, and then depressurize, filter, After washing, the filter is vacuum dried and ground. Ultrasonic disperse the dry and ground product in 10ml of deionized water, add hydrochloric acid to adjust the pH to less than 3, add 1g of potassium permanganate and stir at 0°C for 4h, a...

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Abstract

The invention discloses a preparing method for modified oxidized graphene. The preparing method includes the steps that a poly-para-phenylene terephthalamide low polymer capped with amino groups is used as a modifier for carrying out surface modification on oxidized graphene, and hydrazine hydrate is used as a reductant for reducing the modified oxidized graphene to obtain the surface-functionalized graphene. The PPTA polymer capped with the amino groups is obtained through simple one-step polymerization and is directly grafted to the oxidized graphene to obtain the modified oxidized graphene, the modified oxidized graphene has good dispersity in organic solvent, and by means of the polar group and benzene ring structure on PPTA, the modified oxidized graphene has high compatibility with various polymers.

Description

technical field [0001] The present application relates to a preparation method of modified graphene oxide. Background technique [0002] Graphene is a two-dimensional carbon film with a thickness of only one atom. It is the only material composed of a single layer of atoms discovered so far. The chemical bonds between them are composed of sp2 hybrid orbitals, so graphene is very tenacious, and has excellent characteristics that other new materials do not have, such as bendability, strong electrical conductivity, good mechanical strength, and good light transmission. Graphene has extraordinary electrical conductivity, low resistivity, and electrons can migrate extremely efficiently, which is much higher than traditional conductors and semiconductors; electrons migrate in graphene without collisions between electrons and atoms, and can Greatly reduce energy loss; graphene has excellent light transmission, but is not breathable, can be used to develop a new generation of prote...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04
Inventor 仲崇明汪卫帮
Owner SUZHOU ZHUOWEI ENTERPRISE MANAGEMENT CONSULTING CO LTD
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