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Preparation method of graphene oxide and butyl rubber composite material

A butyl rubber and composite material technology, applied in the field of composite polymers, can solve the problems of decreased flexibility of materials, decreased elongation at break, high price and high energy consumption, etc., to reduce equipment costs and factory energy consumption, and improve elongation at break. , the effect of improving mechanical properties

Inactive Publication Date: 2020-02-21
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this patent, a chemical reducing agent is used to reduce graphene oxide in situ, and the degree of reduction is not easy to control. The reaction time is long and requires high-priced and high-energy ultrasonic equipment to assist dispersion. Even so, the formation of graphene sheets during the reduction process cannot be avoided. reunion
At the same time, the performance improvement of the material is limited under the condition of low graphene content, and the flexibility of the material decreases significantly under the condition of high content, and the elongation at break decreases.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation method of the graphene oxide of the present embodiment and butyl rubber composite material, the steps are as follows:

[0028] S1, disperse graphene oxide in water, obtain graphene oxide dispersion liquid, the mass ratio of graphene oxide and water in described graphene oxide dispersion liquid is 0.001:1;

[0029] S2, dissolving butyl rubber in a solvent to obtain a butyl rubber solution, the mass ratio of the butyl rubber in the butyl rubber solution to the solvent is 0.1:20;

[0030] S3, sodium dodecylbenzenesulfonate and sodium dihydrogen phosphate are prepared according to the mass ratio of 17:2 surfactant aqueous solution; the sum of the quality of sodium dodecylbenzenesulfonate and sodium dihydrogen phosphate and the quality of water The ratio is 0.01:0.1;

[0031] S4. Slowly add the butyl rubber solution to the surfactant aqueous solution according to the volume ratio of 0.01:1 and stir at a high speed to mix and disperse. After the dispersion is...

Embodiment 2

[0044] The preparation method of the graphene oxide of the present embodiment and butyl rubber composite material, the steps are as follows:

[0045] S1, disperse graphene oxide in water, obtain graphene oxide dispersion, the mass ratio of graphene oxide and water in the graphene oxide dispersion is 0.1:1;

[0046] S2, dissolving butyl rubber in a solvent to obtain a butyl rubber solution, the mass ratio of the butyl rubber in the butyl rubber solution to the solvent is 1:20;

[0047] S3, sodium dodecylbenzenesulfonate and sodium dihydrogen phosphate are prepared according to the mass ratio of 17:2 surfactant aqueous solution; the sum of the quality of sodium dodecylbenzenesulfonate and sodium dihydrogen phosphate and the quality of water The ratio is 0.01:0.1;

[0048] S4. Slowly add the butyl rubber solution to the surfactant aqueous solution at a ratio of 0.01:1 by volume and mix and disperse at a high speed. After the dispersion is completed, the butyl rubber emulsion is ...

Embodiment 3

[0061] The preparation method of the graphene oxide of the present embodiment and butyl rubber composite material, the steps are as follows:

[0062] S1, disperse graphene oxide in water, obtain graphene oxide dispersion liquid, the mass ratio of graphene oxide and water in the graphene oxide dispersion liquid is 0.005:1;

[0063] S2, dissolving butyl rubber in a solvent to obtain a butyl rubber solution, the mass ratio of the butyl rubber in the butyl rubber solution to the solvent is 0.5:20;

[0064] S3, sodium dodecylbenzenesulfonate and sodium dihydrogen phosphate are prepared according to the mass ratio of 17:2 surfactant aqueous solution; the sum of the quality of sodium dodecylbenzenesulfonate and sodium dihydrogen phosphate and the quality of water The ratio is 0.01:0.1;

[0065] S4. Slowly add the butyl rubber solution to the surfactant aqueous solution at a ratio of 0.01:1 by volume and mix and disperse at a high speed. After the dispersion is completed, the butyl r...

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PUM

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Abstract

The invention discloses a preparation method of a graphene oxide and butyl rubber composite material. The preparation method comprises the following steps: S1, obtaining a graphene oxide dispersion liquid; S2, obtaining a butyl rubber solution; S3, preparing a surfactant aqueous solution; S4, dropwise adding the butyl rubber solution into the surfactant aqueous solution, and stirring, mixing and dispersing at a high speed; S5, adding the graphene oxide dispersion liquid into an obtained butyl rubber emulsion, and stirring, mixing and dispersing to obtain a mixed dispersion liquid; S6, adding vulcanizing agent sulfur, tetramethylthiuram disulfide, 2-mercaptobenzothiazole, zinc oxide and stearic acid into the mixed dispersion liquid, and dispersing continuously to obtain an unvulcanized original material solution; S7, removing the solution in the unvulcanized original material solution; S8, drying to obtain a raw material of graphene oxide and butyl rubber; and S9, carrying out hot pressing on the raw material to obtain the composite graphene / butyl rubber material. The composite material is prepared by the method.

Description

technical field [0001] The invention relates to the technical field of composite polymers, in particular to a preparation method of graphene oxide and butyl rubber composite materials. Background technique [0002] The dispersion structure of nanofillers in the polymer matrix has a great influence on the properties of polymer materials. Graphene is known for its extraordinary mechanical properties, electrical and thermal conductivity. Due to the regular structure of graphene nanosheets and the strong π-π interaction between the sheets, direct use of graphene as a polymer composite material will cause a large number of graphene agglomerations, resulting in a decrease in material performance. The strong oxidation reaction can be used to exfoliate graphite into graphite oxide and introduce a large number of oxygen-containing functional groups into the carbon plane, such as carboxyl, epoxy, hydroxyl, carbonyl, etc. Due to the existence of these oxygen-containing functional gro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/22C08K13/02C08K3/04C08K5/40C08K5/47C08K5/09C08K3/22C08J3/07
CPCC08J3/07C08J2323/22C08K3/22C08K5/09C08K5/40C08K5/47C08K13/02C08K2003/2296C08K3/042C08L23/22
Inventor 夏和生郝帅程振刚王占华费国霞
Owner SICHUAN UNIV