Nanoscale wear-resistant graphene crystal coating

A graphene and nano-technology, applied in the field of coatings, can solve the problems of difficult to observe the microstructure, difficult to control various requirements of physical property control, difficult to grasp the dispersive interface characteristics of coating materials, etc., and achieve the effect of excellent glass texture.

Active Publication Date: 2018-06-29
东莞市德禧金成电子有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As far as the composite of nano-graphene and organic materials is concerned, the composite of organic polymers and nano-scale graphene plates is difficult to observe the fine structure by conventional means, which makes it difficult to grasp the dispersion of coating materials. Therefore, it is difficult to meet various needs through physical control. Even if there are some advantages, there are many constraints in practical applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Synthetic polyurethane resin and graphene resin

[0025] Synthetic polyurethane resin: Inject nitrogen into a 1000mL four-necked flask with a condenser, and drop into 40.38g of polyol (polypropylene glycol with molecular weight of 2000 and polypropylene glycol with molecular weight of 3000 are mixed in a mass ratio of 1:1), 19.23g of 1,6-hexanediisobutyrate and 0.5961g of dibutyltin dilaurate are stirred and heated up. Since the reaction is an exothermic reaction, the temperature is adjusted at 65-75°C and the reaction time is 12 hours. Synthesis Polyurethane resin;

[0026] Synthesis of graphene resin: Put 25g of graphene oxide into a glass flask equipped with a reflux cooler and a stirrer, stir to dissolve, then dilute 75g of carbamate monomer in 165g of absolute ethanol, and finally, in 20-30 Adding carbamate monomer solution dropwise to graphene oxide at ℃, stirring, and carrying out reflux reaction at 25-45℃ for 24 hours, thereby synthesizing graphene resin;

Embodiment 2

[0028] Preparation of nano wear-resistant graphene crystal coating

[0029] Graphene resin 22g that embodiment 1 is made is added in 34.05g polyurethane resin, and the organic solvent cyclohexanone of 41.5g is added, and with the rotating speed of 400rmp 2 hours, obtain mixture;

[0030] Add 12g of perfluoroalkyl carbamate, 12g of acrylic fluoride, 12g of organomodified polyoxysilane, 0.3g of methoxyphenol, 0.3g of alkylphenol polyoxyethylene ether, and defoamer XBE- 2000 0.3g and hydroxycyclobenzophenone 8g, continue to stir for 3 hours, obtain nano wear-resistant graphene crystal coating.

[0031] The polycarbonate material is cut according to the size of 10×10cm, and the surface of the polycarbonate material is cleaned with ethanol. After cleaning, it is placed in a drying oven at 60°C for 30 minutes. On the surface of polycarbonate, the coating thickness is 8 μm, and dried in a hot air drier at 100° C. for 10 minutes to obtain a nanometer wear-resistant graphene crystal c...

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PUM

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Abstract

The invention belongs to the technical field of coating, and particularly relates to a nanoscale wear-resistant graphene crystal coating, which is prepared from the following materials in parts by weight: 10 to 35 parts of polyurethane resin, 20 to 40 parts of graphene resin, 15 to 30 parts of monomer, 0.2 to 2 parts of additive and 5 to 10 parts of photoinitiator. When the coating composition disclosed by the invention is applied in an electronic device, a high-hardness coating film can be formed by one-step application, moreover, the dispersivity of pigment is good, and even if the thicknessof the coating is lower than 8 Mu m, the surface hardness is still higher than 3H. After being applied on the surface of a crylic acid-polycarbonate material, the nanoscale wear-resistant graphene crystal coating can show excellent glass quality, and therefore can be used as a surface protection coating material for mobile electronic devices such as mobile phones, lap-top computers, digital cameras, camcorders and stereos.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a nano wear-resistant graphene crystal coating. Background technique [0002] Since the year 2000, nanotechnology has attracted widespread attention, and at the same time, research on organic / nonpolar hybrid nanomaterials has become more active. Organic polymer materials have the advantages of light weight, softness, toughness, and good film-forming properties, while inorganic materials such as graphene or silica have the advantages of heat resistance, good elasticity, high surface hardness, and good transparency. [0003] Through nanostructure control technology, materials with specific functions are combined as required to obtain a coating composition composed of organic materials and graphene in this application. The coating composition of the present invention can be applied to various fields such as electronics, information communication, biology, energy, envir...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D187/00C09D7/63C09D7/65C08G83/00C08G18/73C08G18/48
CPCC08G18/4808C08G18/73C08G83/001C08L2203/20C08L2205/035C09D175/08C08L87/00C08K5/205C08K5/13
Inventor 金光诛
Owner 东莞市德禧金成电子有限公司
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