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Graphene-based high-performance conducting film and processing method thereof

A processing method, graphene technology, applied to conductive materials, conductors, circuits, etc. dispersed in non-conductive inorganic materials, can solve the problems of high thermal expansion coefficient, difficult biodegradation and recycling, low processing temperature, etc. Combines the effects of improved performance, improved electrical conductivity, and improved mechanical properties

Inactive Publication Date: 2019-06-07
毛红玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These polymer film substrates have certain flexibility, but the defects of low processing temperature, high thermal expansion coefficient, difficulty in biodegradation and recycling limit their application.

Method used

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  • Graphene-based high-performance conducting film and processing method thereof

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example 1

[0051] A high-performance conductive film based on graphene, characterized in that: it includes the following raw materials in parts by weight: 20 parts of cellulose pulp board, 80 parts of sulfuric acid solution, 80 parts of N,N-dimethylacetamide, 60 parts of polylactic acid Parts, 10 parts of graphene oxide, 10 parts of carbomer.

[0052] A method for processing a high-performance conductive film based on graphene, the specific processing process is:

[0053] (1) Put graphene oxide and water in a single-necked flask at a mass ratio of 1:20, then place the three-necked flask in an ultrasonic disperser, and mix and ultrasonicate for 30 minutes at an ultrasonic frequency of 75kHz, then add to the three-necked flask Sodium azide of 0.2 times the mass of graphene oxide, then move the three-necked flask to a digital display speed measuring constant temperature magnetic stirrer, at a temperature of 160 ° C and a speed of 800r / min, heat and stir for 2 hours, and then transfer to the...

example 2

[0064] A high-performance conductive film based on graphene, characterized in that: it includes the following raw materials in parts by weight: 20 parts of cellulose pulp board, 80 parts of sulfuric acid solution, 80 parts of N,N-dimethylacetamide, 60 parts of polylactic acid Parts, 10 parts of graphene oxide, 10 parts of carbomer.

[0065] A method for processing a high-performance conductive film based on graphene, the specific processing process is:

[0066] (1) In parts by weight, take 20 parts of cellulose pulp board, 80 parts of sulfuric acid solution, 80 parts of N,N-dimethylacetamide, 60 parts of polylactic acid, 10 parts of graphene oxide, and 10 parts of carbomer share;

[0067] (2) Put the cellulose pulp board and the sulfuric acid solution with a mass fraction of 15% in the reaction kettle, at a temperature of 90°C and a rotation speed of 1200r / min, stir at a constant temperature for 8 hours, and then add cardamom into the reaction kettle Bohm, at a temperature o...

example 3

[0072] A high-performance conductive film based on graphene, characterized in that: it includes the following raw materials in parts by weight: 20 parts of cellulose pulp board, 80 parts of sulfuric acid solution, 80 parts of N,N-dimethylacetamide, 60 parts of polylactic acid Parts, 10 parts of graphene oxide.

[0073] A method for processing a high-performance conductive film based on graphene, the specific processing process is:

[0074] (1) Put graphene oxide and water in a single-necked flask at a mass ratio of 1:20, then place the three-necked flask in an ultrasonic disperser, and mix and ultrasonicate for 30 minutes at an ultrasonic frequency of 75kHz, then add to the three-necked flask Sodium azide of 0.2 times the mass of graphene oxide, then move the three-necked flask to a digital display speed measuring constant temperature magnetic stirrer, at a temperature of 160 ° C and a speed of 800r / min, heat and stir for 2 hours, and then transfer to the three-necked flask A...

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Abstract

The invention discloses a graphene-based high-performance conducting film and a processing method thereof and belongs to the technical field of high-molecular materials. According to the method, a cellulose paste plate , a sulfuric acid solution, N,N-dimethylacetamide, polylactic acid, modified graphene oxide and Carbomer are taken, the cellulose paste plate and the sulfuric acid solution are stirred and processed under constant temperature, the Carbomer is added, processing is continued, filtering and alkaline washing are performed, and preprocessed cellulose paste is obtained; the obtained preprocessed cellulose paste and N,N-dimethylacetamide are mixed for homogenization, then modified graphene oxide and polylactic acid are added, and a film-forming solution is obtained through homogenization; and a film is formed through casting, and then the graphene-based high-performance conducting film is obtained after drying and film wiping. The graphene-based high-performance conducting filmhas excellent conductive and mechanical properties.

Description

technical field [0001] The invention discloses a high-performance conductive film based on graphene and a processing method thereof, belonging to the technical field of polymer materials. Background technique [0002] Nano-carbon material graphene has both good flexibility and excellent electrical conductivity. It is closely arranged in a hexagonal structure of carbon atoms (honeycomb lattice), and is composed of a layer of sp 2 A two-dimensional material composed of hybrid carbon atoms, this special chemical structure determines that it also has excellent mechanical properties, optical properties and thermal properties, making it an extremely attractive application prospect in the field of flexible conductive materials. In order to make better use of these properties of graphene and make it more widely used, it is first necessary to solve the problems of its high rigidity and difficulty in processing. Nanocellulose prepared from cellulose has superior characteristics such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/18H01B1/24H01B5/00H01B13/00
Inventor 毛红玲
Owner 毛红玲