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Graphene coating master batch and preparation method

A graphene and coating technology, applied in chemical instruments and methods, fibrous fillers, inorganic pigment processing, etc., can solve the problems of continuous and stable large-scale production, poor dispersion effect, and long time-consuming masterbatch, reaching a significant market. Application value, improved compatibility, low cost effect

Inactive Publication Date: 2018-03-20
CHENDU NEW KELI CHEM SCI CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of the current poor dispersion effect of graphene in the masterbatch carrier resin, the time-consuming preparation of the masterbatch, the high cost, and the inability to continuously and stably mass-produce the defects, the present invention proposes a graphene coating masterbatch and a preparation method, so as to realize continuous The stable preparation of graphene masterbatch further promotes the mass production of graphene masterbatch

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  • Graphene coating master batch and preparation method

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Effect test

Embodiment 1

[0032] (1) Disperse 5 parts of graphene oxide in 42 parts of solution in parts by mass. The solvent is deionized water dissolved with 2 parts by mass of dispersant cetyltrimethylammonium bromide, and the molar concentration Mix 10-20 parts of copper sulfate aqueous solution of 7mol / L, ultrasonically disperse, and the power of ultrasonically disperse is 8kW, obtain the copper ion surface-modified graphene oxide dispersion solution, the copper ion surface-modified graphene oxide dispersion solution The solution is heated and the temperature is controlled to be 50°C;

[0033](2) The copper ion surface-modified graphene oxide dispersion solution is mixed with a phenolic resin emulsion with a solid content of 50% in a mass ratio of 1:0.6, and the ultrasonic dispersion power is set to 5kW for further ultrasonic dispersion, Obtain the modified graphene oxide dispersion solution wrapped in resin;

[0034] (3) The ratio of the mass of sodium borohydride to graphene oxide is 1:1.2. Whe...

Embodiment 2

[0036] (1) Disperse 10 parts of graphene oxide in 40 parts of solution according to the number of parts by mass. The solvent is deionized water dissolved with 2 parts by mass of sodium dodecylbenzenesulfonate, and the molar concentration is 8mol / L 10 parts of copper sulfate aqueous solution are mixed, ultrasonically dispersed, and the power of ultrasonic dispersion is 8kW, obtains the graphene oxide dispersion solution of copper ion surface modification, the graphene oxide dispersion solution of described copper ion surface modification is heated, controls temperature 70°C;

[0037] (2) The copper ion surface-modified graphene oxide dispersion solution is mixed with a styrene-acrylic emulsion with a solid content of 50% in a mass ratio of 1:0.5, and further ultrasonically dispersed. The power of ultrasonic dispersion is 8kW, and the obtained Resin-wrapped modified graphene oxide dispersion solution;

[0038] (3) The ratio of the mass of sodium borohydride to graphene oxide is...

Embodiment 3

[0040] (1) Disperse 2 parts of graphene oxide in 40 parts of solution according to the number of parts by mass. The solvent is deionized water dissolved with 1 part by mass of polyvinyl alcohol and polyethylene composition, and the molar concentration is 6mol / L 10 parts of copper sulfate aqueous solution are mixed, ultrasonic dispersion, the power of ultrasonic dispersion is 4kW, obtain the graphene oxide dispersion solution of copper ion surface modification, the graphene oxide dispersion solution of described copper ion surface modification is heated, control temperature 65°C;

[0041] (2) The copper ion surface-modified graphene oxide dispersion solution is mixed with a phenolic resin emulsion with a solid content of 50% in a mass ratio of 1:0.8, and further ultrasonically dispersed, and the power of ultrasonic dispersion is 3kW, to obtain Resin-wrapped modified graphene oxide dispersion solution;

[0042] (3) The ratio of the mass of sodium borohydride to graphene oxide i...

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Abstract

The invention provides a graphene coating master batch and a preparation method. The preparation method comprises the following steps of respectively preparing a graphene oxide water dispersing liquidand a copper sulfate water solution, mixing with emulsified carrier resin, and dispersing by ultrasonic waves; utilizing graphene oxide to forcibly adsorb copper ions in the mixing solution to generate complexing reaction, reducing the graphene oxide, spraying, and drying, so as to obtain the coating master batch. The graphene coating master batch has the advantages that the forcible adsorption function of the graphene oxide is utilized, and graphene oxide is combined with the uniformly dispersed copper ions in the solution, so that the dispersivity of the graphene in the resin carrier is improved, the carrier resin is covered to the surface layer after spraying and granulating, the compatibility is improved, and the defects of poor dispersing effect of the graphene in the resin carrier of the master batch, long preparation time of master batch, high cost, failure to realize continuous and stable large-scale production and the like are overcome; the graphene master batch can be continuously and stably prepared, and the batched production of the graphene master batch is further promoted.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a graphene coating masterbatch and a preparation method. Background technique [0002] Carbon is an element with the most abundant content in the world, and carbon materials play a leading role in the history of human development. Carbon materials almost include the properties of all substances on the earth, such as the hardest-softest, insulator-semiconductor-superconductor, heat insulation-good thermal conductivity, light absorption-full light transmission. With the changes of the times and the progress of science, people continue to discover and utilize carbon, and people have unlimited possibilities for the development of carbon. In 2004, two scientists from the University of Manchester in the United Kingdom discovered a new two-dimensional carbon material-graphene by using the method of micromechanical exfoliation, and won the Nobel Prize in Physics in 2010. Graphene is a...

Claims

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Application Information

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IPC IPC(8): C09D7/62C09D7/61C09D7/65C08J3/22C09C1/44C09C3/04C09C3/06C09C3/10
CPCC08J3/226C01P2004/64C01P2006/22C08J2425/14C08J2467/06C09C1/44C09C3/006
Inventor 陈庆昝航
Owner CHENDU NEW KELI CHEM SCI CO LTD
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