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Hierarchical structure gaphene-based tensile tansparent conductive elastomer preparation method

A transparent conductive and elastic body technology, which is applied in the direction of cable/conductor manufacturing, conductive layers on insulating carriers, circuits, etc., can solve the problems of unrealized stretchability of transparent conductive films, damage to the integrity of conductive layers, loss of conductivity, etc. , to achieve the effect of simple preparation method, good stretchability and mild reaction conditions

Active Publication Date: 2016-12-14
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although both methods have achieved the flexibility and bendability of the transparent conductive film, they have not achieved the stretchable transparent conductive film. The main reason is that stretching deformation will destroy the integrity of the conductive layer, thus making it lose ability to conduct electricity

Method used

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  • Hierarchical structure gaphene-based tensile tansparent conductive elastomer preparation method
  • Hierarchical structure gaphene-based tensile tansparent conductive elastomer preparation method
  • Hierarchical structure gaphene-based tensile tansparent conductive elastomer preparation method

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Experimental program
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Effect test

Embodiment 1

[0033] Graphene oxide is prepared by the method reported in the literature (Journal of the American Chemical Society 1958,80,1339-1339.), disperse 2mg graphite oxide powder into 100mL deionized water, and use a cell pulverizer to sonicate for 0.5 hours to obtain a brown translucent Graphene oxide aqueous solution, by scanning probe microscopy (such as figure 1 ) analysis shows that the graphene oxide prepared by this method has a thickness of about 1nm, which is a single-layer graphene with better quality. 3 mL of ammonia water (25%) was added to the graphene oxide dispersion at one time, and magnetically stirred for 1 hour to mix the two evenly. Subsequently, the pH of the mixed solution was measured to be about 9 with a pH meter. Weigh 1 mg of hydrazine hydrate solution and add it dropwise to the stirring graphene oxide solution, and then heat the mixed liquid to 85 °C with a heating platform. Keep it warm for 2 hours while stirring and sealing, and the graphene oxide red...

Embodiment 2

[0035]Graphene oxide was prepared by the method reported in the literature (Journal of the American Chemical Society 1958,80,1339-1339.), 4 mg of graphite oxide was dispersed into 100 mL of deionized water, and ultrasonically used for 0.5 hours with a cell pulverizer to obtain a brown translucent The graphene oxide aqueous solution, through the analysis of the scanning probe microscope, shows that the thickness of the graphene oxide prepared by this method is about 1nm, which is a single-layer graphene with good quality. 10 mL of ammonia water (25%) was added to the graphene oxide dispersion at one time, and magnetically stirred for 1 hour to mix the two evenly. Subsequently, the pH of the mixture was measured to be about 11 with a pH meter. Weigh 2 mg of hydrazine hydrate solution and add it dropwise to the stirring graphene oxide solution, and then heat the mixed liquid to 95° C. with a heating platform. Keep it warm for 4 hours while stirring and sealing, and the graphene ...

Embodiment 3

[0037] Graphene oxide was prepared by the method reported in the literature (Journal of the American Chemical Society 1958,80,1339-1339.), disperse 10mg graphite oxide into 100mL deionized water, and use a cell pulverizer to sonicate for 0.5 hours to obtain a brown translucent The graphene oxide aqueous solution, through the analysis of the scanning probe microscope, shows that the thickness of the graphene oxide prepared by this method is about 1nm, which is a single-layer graphene with good quality. 10 mL of ammonia water (25%) was added to the graphene oxide dispersion at one time, and magnetically stirred for 1 hour to mix the two evenly. Subsequently, the pH of the mixture was measured to be about 11 with a pH meter. Weigh 2 mg of hydrazine hydrate solution and add it dropwise to the stirring graphene oxide solution, and then heat the mixed liquid to 95° C. with a heating platform. Keep it warm for 4 hours while stirring and sealing, and the graphene oxide reduction proc...

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Abstract

The invention relates to a hierarchical structure gaphene-based tensile tansparent conductive elastomer preparation method. The method comprises steps: after being stretched, the polymer elastomer is applied to an opening outer edge of an open container to form closed space, the container is heated, and the polymer elastomer is expanded; a reduced graphene oxide solution coats the expanded elastomer surface, cooling to room temperature is carried out, after restoring the initial morphology, the polymer elastomer is taken down, and thus, the hierarchical structure gaphene-based tensile tansparent conductive elastomer is obtained. The method of the invention is simple, the reaction condition is mild, no special equipment requirements is required, and mass production is facilitated; and the prepared hierarchical structure gaphene-based tensile transparent conductive elastomer presents excellent tensile performance while high transmittance and high conductivity are ensured, and experiments prove that the conductivity can still be smaller than 500 omega per square while the tensile ratio is larger than 400%.

Description

technical field [0001] The invention belongs to the field of preparation of stretchable transparent conductive materials, in particular to a preparation method of a stretchable transparent conductive elastomer based on hierarchical graphene. Background technique [0002] Transparent conductive film is a kind of film that can conduct electricity and has high transparency in the visible light range. It is widely used in the fields of solar cells, light-emitting diodes, flat panel displays, and gas sensors. The transparent conductive films that have been widely used at present are all prepared on hard substrate materials such as ceramics and glass. Applications. Compared with hard substrate materials, transparent conductive films prepared on organic flexible substrate materials not only have the same photoelectric characteristics, but also have many unique advantages, such as: can be bent and deformed, light and portable, not easy to break, can be The adoption of roll-to-roll...

Claims

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Application Information

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IPC IPC(8): H01B5/14H01B13/00C01B31/04
CPCH01B5/14H01B13/00
Inventor 张青红穆九柯王宏志李耀刚江雨姜颖杜骁
Owner DONGHUA UNIV
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