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Preparation method of nano-titanium dioxide/graphene airgel/resin-based composite material

A nano-titanium dioxide and graphene aerogel technology, applied in the field of nanomaterials, can solve problems such as in-situ generation of nano-titanium dioxide, no involvement, etc., and achieve significant social and economic benefits, simple procedures, and good dispersibility.

Active Publication Date: 2022-06-28
SHENYANG JINYU BLISTER PACKING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The content disclosed in this patent is to disperse titanium dioxide powder into graphene oxide solution, and it also does not involve the in-situ generation of nano-titanium dioxide, nor does it involve the formation of nano-titanium dioxide network structure in graphene airgel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Mix n-butyl titanate, anhydrous ethanol a and glacial acetic acid to obtain A solution, and then mix anhydrous ethanol b, deionized water and concentrated hydrochloric acid to obtain B solution; then under stirring, add B solution to A. The solution is added dropwise to prepare a nano-titanium dioxide precursor solution with a pH value of 2.4; wherein, the volume ratio of absolute ethanol a in solution A and absolute ethanol b in solution B is 2:1, n-butyl titanate The volume ratio to glacial acetic acid is 1:1, the volume ratio of n-butyl titanate to absolute ethanol a+b is 1:15, the volume ratio of n-butyl titanate to water is 1:2, and the volume ratio of n-butyl titanate to water is 1:2. The volume ratio of ester to concentrated hydrochloric acid was 1:0.07.

[0038] The graphene aerogel prepared by chemical reduction method of 10mg / ml graphene oxide dispersion was immersed in the above-mentioned nano-titania precursor solution, and placed in a vacuum oven for 3min a...

Embodiment 2

[0043] Mix n-butyl titanate, anhydrous ethanol a and glacial acetic acid to obtain A solution, and then mix anhydrous ethanol b, deionized water and concentrated hydrochloric acid to obtain B solution; then under stirring, add B solution to A. The solution is added dropwise to prepare a nano-titania precursor solution with a pH value of 2.3; wherein, the volume ratio of absolute ethanol a in solution A and absolute ethanol b in solution B is 2:1, n-butyl titanate The volume ratio to glacial acetic acid is 1:1, the volume ratio of n-butyl titanate to absolute ethanol a+b is 1:10, the volume ratio of n-butyl titanate to water is 1:2, and the volume ratio of n-butyl titanate to water is 1:2. The volume ratio of ester to concentrated hydrochloric acid was 1:0.07.

[0044] The graphene aerogel prepared by chemical reduction method of 10mg / ml graphene oxide dispersion is immersed in the nano-titania precursor solution, and placed in a vacuum oven for 5min at room temperature; then i...

Embodiment 3

[0055] Mix isopropyl titanate, anhydrous ethanol and glacial acetic acid to obtain A solution, then mix anhydrous ethanol, deionized water and concentrated sulfuric acid to obtain B solution; then under stirring, add B solution to A solution Add dropwise, and prepare a nano-titanium dioxide precursor solution with a pH value of 2.3; wherein, the volume ratio of absolute ethanol a in solution A and absolute ethanol b in solution B is 2:1, isopropyl titanate and ice The volume ratio of acetic acid is 1:0.8, the volume ratio of isopropyl titanate to absolute ethanol a+b is 1:12, the volume ratio of isopropyl titanate to water is 1:1, and the volume ratio of isopropyl titanate to water is 1:1. The volume ratio of concentrated hydrochloric acid is 1:0.07.

[0056] The graphene aerogel prepared by the hydrothermal reduction method of the graphene oxide dispersion of 10 mg / ml was immersed in the nano-titania precursor solution, and placed in a vacuum oven for 3 min at room temperatur...

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PUM

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Abstract

The preparation method of nano-titanium dioxide / graphene airgel / resin-based composite material of the present invention belongs to the technical field of nanomaterials, and the steps are: preparing a titanium dioxide precursor solution, and immersing the graphene airgel prepared by utilizing graphene oxide into the titanium dioxide precursor Gel reaction is carried out in the solid solution, and after nano-titanium dioxide is generated in situ inside the graphene airgel, the solvent is removed by freeze-drying; under an inert atmosphere, the dried composite is subjected to microwave reduction to obtain nano-titanium dioxide / graphene aerogel Glue hybrid composite; fill it with resin solution, and make resin-based composite material after molding. The preparation process of this method is simple, and the operability is strong. Since the nano-titanium dioxide is generated in situ inside the airgel, the dispersion is good, which solves the ubiquitous agglomeration problem of directly adding nanoparticles; An interpenetrating network is formed between the layers, giving full play to the synergistic effect of the two, showing good electromagnetic shielding performance.

Description

Technical field: [0001] The invention belongs to the technical field of nanomaterials, and in particular relates to a preparation method of nanometer titanium dioxide / graphene aerogel / resin-based composite material. Background technique: [0002] With the rapid development of modern industry and the widespread use of radio communications and electronic appliances, the harm caused by electromagnetic radiation pollution is becoming increasingly serious. Electromagnetic radiation pollution will not only have adverse effects on the normal operation of surrounding electronic equipment, and even lead to system out-of-control or loss of function in severe cases; it will also cause damage to the natural ecological environment and adversely affect the normal survival and development of animals and plants. Health can also be seriously endangered. Therefore, research and design of new and efficient electromagnetic shielding materials to ensure that the electromagnetic environment is w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/08C08L63/00C08L67/06C08L71/10C08L81/06C08K3/04C08K3/22C01G23/053B82Y40/00C01G23/047B82Y30/00C01B32/194C01B32/184
CPCC08K3/042C08K3/22C01G23/053C01G23/0536B82Y40/00C01G23/08B82Y30/00C01B32/184C01B32/194C01P2004/80C08K2201/011C08K2003/2241C08L79/085C08L63/00C08L67/06C08L71/00C08L81/06
Inventor 李伟童星宇卢少微李佳颖王柏臣马克明熊需海
Owner SHENYANG JINYU BLISTER PACKING CO LTD