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Composite coating doped with modified graphene oxide and preparation method for composite coating

A graphene composite and composite coating technology, applied in the direction of coating, etc., can solve the problems of increased heat of devices, serious economic losses due to aging of electrical appliances, etc., and achieve the effect of improving thermal conductivity and mechanical properties

Inactive Publication Date: 2017-05-24
SUZHOU JIREN HIGH TECH MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, in the era when microelectronics integration technology and electrical appliances are becoming more and more popular, the volume of electronic components and logic circuits has shrunk by thousands of times, electronic instruments have become thinner and smaller, and the operating frequency has increased sharply, resulting in an increase in the heat generated by the device, resulting in electrical appliances. The growing economics of aging due to the inability to dissipate heat

Method used

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  • Composite coating doped with modified graphene oxide and preparation method for composite coating
  • Composite coating doped with modified graphene oxide and preparation method for composite coating
  • Composite coating doped with modified graphene oxide and preparation method for composite coating

Examples

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Effect test

Embodiment 1

[0048] A composite coating doped with modified graphene oxide, the raw materials required to prepare the product include: a main agent, a crosslinking agent, a mixed solvent, and a catalyst, the solid content of the composite coating is 70%wt, wherein the The main agent is graphene oxide composite hydroxyl-terminated polydimethylsiloxane, the crosslinking agent is ethyl orthosilicate, the catalyst is dibutyltin dilaurate, and the mass ratio of the main agent to the crosslinking agent is The range is 7:3, and the content of the catalyst is 0.1%wt relative to the total mass of the main agent and the crosslinking agent.

[0049] In terms of mass percent, the graphene oxide composite hydroxyl-terminated polydimethylsiloxane includes:

[0050] Graphene oxide, 2%wt;

[0051] Thionyl chloride, 8%wt;

[0052] N,N-Dimethylformamide, 31.49%wt;

[0053] γ-Aminopropyltriethoxysilane, 3.5%wt;

[0054] Hydroxy-terminated polydimethylsiloxane, 40%wt;

[0055] Tetrahydrofuran, 15%wt;

...

Embodiment 2

[0084] A composite coating doped with modified graphene oxide, the raw materials needed to prepare the product include: main agent, crosslinking agent, mixed solvent, and catalyst, the solid content of the composite coating is 60%wt, wherein, the The main agent is graphene oxide composite hydroxyl-terminated polydimethylsiloxane, the crosslinking agent is ethyl orthosilicate, the catalyst is dibutyltin dilaurate, and the mass ratio of the main agent to the crosslinking agent is The range is 8:2, and the content of the catalyst is 0.08%wt relative to the total mass of the main agent and the crosslinking agent.

[0085] In terms of mass percent, the graphene oxide composite hydroxyl-terminated polydimethylsiloxane includes:

[0086] Graphene oxide, 3%wt;

[0087] Thionyl chloride, 12%wt;

[0088] N,N-Dimethylformamide, 20%wt;

[0089] γ-Aminopropyltriethoxysilane, 5%wt;

[0090] Hydroxy-terminated polydimethylsiloxane, 29.95%wt;

[0091] Tetrahydrofuran, 30%wt;

[0092] Di...

Embodiment 3

[0120] A composite coating doped with modified graphene oxide, the raw materials required to prepare the product include: a main agent, a crosslinking agent, a mixed solvent, and a catalyst, the solid content of the composite coating is 50%wt, wherein the The main agent is graphene oxide composite hydroxyl-terminated polydimethylsiloxane, the crosslinking agent is ethyl orthosilicate, the catalyst is dibutyltin dilaurate, and the mass ratio of the main agent to the crosslinking agent is The range is 8.5:1.5, and the content of the catalyst is 0.05%wt relative to the total mass of the main agent and the crosslinking agent.

[0121] In terms of mass percent, the graphene oxide composite hydroxyl-terminated polydimethylsiloxane includes:

[0122] Graphene oxide, 3.5%wt;

[0123] Thionyl chloride, 16%wt;

[0124] N,N-Dimethylformamide, 35%wt;

[0125] γ-Aminopropyltriethoxysilane, 7%wt;

[0126] Hydroxy-terminated polydimethylsiloxane, 13.44%wt;

[0127] Tetrahydrofuran, 25%w...

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Abstract

The invention discloses composite coating doped with modified graphene oxide and a preparation method for the composite coating. The composite coating consists of a main agent, a cross-linking agent, a mixed solvent and a catalyst, wherein solid content of the composite coating ranges from 30%wt to 70%wt; the main agent is graphene oxide composite hydroxyl-terminated polydimethylsiloxane; the cross-linking agent is tetraethoxysilane; a mass ratio of the main agent to the cross-linking agent ranges from 7:3 to 9.5:0.5; the catalyst is dibutyltin dilaurate, and adding amount of the dibutyltin dilaurate accounts for 0.01%wt-0.1%wt of the total mass of the main agent and the cross-linking agent. According to the composite coating doped with modified graphene oxide disclosed by the invention, graphene oxide is uniformly dispersed to hydroxyl-terminated polydimethylsiloxane in a lamellar morphological mode; and moreover, the obtained composite coating has relatively good heat conduction and mechanical property by utilizing characteristics of the graphene oxide.

Description

technical field [0001] The invention relates to a coating, in particular to a composite coating doped with modified graphene oxide and a preparation method thereof. Background technique [0002] With the advancement of modern industry and science and technology, many technical fields have put forward higher requirements for coating materials, in addition to meeting the basic mechanical properties of hardness, adhesion, toughness and impact resistance, chemical corrosion resistance, weather resistance, excellent electrical insulation properties and In addition to chemical stability, etc., it is also necessary for the coating to have good thermal conductivity for certain applications. For example, in the era when microelectronics integration technology and electrical appliances are becoming more and more popular, the volume of electronic components and logic circuits has shrunk by thousands of times, electronic instruments have become thinner and smaller, and the operating fre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D7/12
CPCC09D183/06C08K3/04C08K7/00C08K9/02C08K9/06C08K2201/011C09D7/62
Inventor 李为立徐泽孝
Owner SUZHOU JIREN HIGH TECH MATERIAL CO LTD