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Coating base material for large-scale preparation of graphene oxide film and prepared graphene oxide film

A technology for large-scale preparation and coating of substrates, applied in the fields of inorganic chemistry, carbon compounds, chemical instruments and methods, etc., which can solve the problem that the appearance of graphene oxide film is bulging, the coating substrate cannot be reused, and the surface uniformity is poor. problems, to achieve the effect of improving the appearance of damage, improving the appearance of bubbling, and enhancing the effect of re-wetting

Active Publication Date: 2021-09-17
CHANGZHOU FUXI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention uses synthetic fibers with good air permeability as the coating substrate, which effectively solves the problems in the prior art that the drying speed is slow, the appearance of the graphene oxide film is bulging, damaged, the surface uniformity is poor, and the coating substrate cannot be reused. and other technical issues

Method used

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  • Coating base material for large-scale preparation of graphene oxide film and prepared graphene oxide film
  • Coating base material for large-scale preparation of graphene oxide film and prepared graphene oxide film
  • Coating base material for large-scale preparation of graphene oxide film and prepared graphene oxide film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0111] The preparation method of graphene oxide film is as follows:

[0112] 1) Graphene oxide slurry with a solid content of 8%, a viscosity of 20000mPa·s, and an average graphene oxide sheet diameter of 2 μm is coated on the coated substrate with a thickness of 1.5mm;

[0113] 2) The material of the coating substrate is polypropylene, the weaving method is twill, the yarn structure is monofilament, the thickness of polypropylene is 500 μm, the warp density is 200 threads / inch, the weft density is 100 threads / inch, and the air permeability is 100L / m 2 / s, the tensile strength is 2000N, and the surface tension is 100mN / m;

[0114] 3) The coated slurry moves together with the coated substrate, and is dried by the oven of the coating machine, the drying temperature is 100°C, the wind speed is 20m / s, and the drying speed is 3m / min;

[0115] 4) Wet the dried graphene oxide film, and the wet method is to spray water mist on both sides, that is, spray water mist from the side of th...

Embodiment 2

[0124] The preparation method of graphene oxide film is as follows:

[0125] 1) Graphene oxide slurry with a solid content of 5%, a viscosity of 10000 mPa·s, and an average graphene oxide sheet diameter of 3 μm is coated on the coated substrate with a thickness of 2.5 mm;

[0126] 2) The material of the coating substrate is nylon, the weaving method is plain weave, the yarn structure is multifilament, the thickness of nylon is 500 μm, the warp density is 120 threads / inch, the weft density is 80 threads / inch, and the air permeability is 60L / m 2 / s, the tensile strength is 2500N, and the surface tension is 60mN / m;

[0127] 3) The coated slurry moves together with the coated substrate, and is dried by the oven of the coating machine, the drying temperature is 80°C, the wind speed is 12m / s, and the drying speed is 1.2m / min;

[0128] 4) Wet the dried graphene oxide film, and the wet method is to spray water mist on both sides, that is, spray water mist from the side of the graphene ...

Embodiment 3

[0133] The preparation method of graphene oxide film is as follows:

[0134] 1) The graphene oxide slurry with a solid content of 10%, a viscosity of 45000mPa·s, and an average graphene oxide sheet diameter of 2 μm is coated on the coated substrate with a thickness of 0.75mm;

[0135] 2) The material of the coating substrate is polyester, the weaving method is forged, the yarn structure is monofilament, the thickness of polyester is 500 μm, the warp density is 300 threads / inch, the weft density is 150 threads / inch, and the air permeability is 120L / m 2 / s, the tensile strength is 3000N, and the surface tension is 130mN / m;

[0136] 3) The coated slurry moves together with the coated substrate, and is dried by the oven of the coating machine, the drying temperature is 120°C, the wind speed is 30m / s, and the drying speed is 8m / min;

[0137] 4) Wet the dried graphene oxide film, and the wet method is to spray water mist on both sides, that is, spray water mist from the side of t...

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Abstract

The invention provides a coating base material for large-scale preparation of a graphene oxide film. The coating base material is made of synthetic fibers, the texture organization is regular spinning textures, and the yarn structure is filament yarn. The invention also provides a graphene oxide film prepared by applying the coating base material. The coating base material has the following advantages: 1) the drying speed of the graphene oxide film is increased by (100-150)%; 2) appearance bubbling of the high-thickness graphene oxide film is improved; 3) the graphene oxide film can be easily stripped from the coating base material, and the appearance uniformity of the surface of the stripped graphene oxide film is improved; 4) the base material is repeatedly used, and the cost is reduced; and 5) the wetting effect of the graphene oxide film is enhanced, and the appearance damage phenomenon is improved.

Description

technical field [0001] The invention belongs to the technical field of graphene oxide production, and in particular relates to a coating substrate used for large-scale preparation of graphene oxide films and the prepared graphene oxide films. Background technique [0002] In the traditional coating industry, the solution or slurry is coated on the substrate, and after drying, it generally does not need to be stripped, or it needs to be stripped but the drying speed is fast, and the requirements for the substrate are not high. The coating substrate used is generally PET film, metal film and other air-tight materials. [0003] Graphene oxide preparation process see figure 1 . In the preparation process of graphene oxide, if traditional coating materials such as PET and metal film are used, the main problems are as follows: [0004] 1. Slow drying [0005] Cause Analysis: [0006] 1) Using an airtight substrate, the moisture in the graphene oxide slurry can only evaporate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/198
CPCC01B32/198
Inventor 卢静周步存
Owner CHANGZHOU FUXI TECH CO LTD
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