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    Home > Coatings News > Coating Technologies > Coating science: A brief discussion on the latest progress in graphene material applications

    Coating science: A brief discussion on the latest progress in graphene material applications

    • Last Update: 2020-05-18
    • Source: Internet
    • Author: User
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    Graphene is a kind of honeycomb thin planar sp2 hybridization of carbon atoms is formed, in a thickness of nm, large specific surface area, very good tensile strength and light-transmissive, electrical and thermal conductivity, as the "King of materials" in the new centurya graphene a graphene applications because of its excellent electrical and thermal conductivity, high specific surface area, and high strength properties, mainly concentrated in the six application areas:graphene at home and abroad application of Research in full swing, which contains the following popular applications:1graphene super-cell production in a cell graphene may be directly used as positive and negative electrode material, a conductive additive may be added as positive to the negative electrode material, but also as a coating to improve the power characteristics of the batteryCharging and driving range has been plagued by new energy vehicles, this is because the development of traditional lithium batteries and lead-acid batteries encounter "bottleneck", while graphene battery is expected to make a breakthrough hereAt the Shanghai Auto Show held recently, car prices have unveiled a graphene lithium titanate batteries, can achieve 10 to 15 minutes fast charging, sustainable discharge more than 40,000 times, oil and electricity comprehensive driving range of up to 1000 km or more2 graphene ultracapacitors a graphene based supercapacitor developed, exhibit excellent power characteristics and cycle life, power density of 1kw / kg when the energy density of up to 80Wh / kg, when the power density 20kw / kg, the energy density can be held 33Wh / kgGraphene electrode structure of the sheet material smaller in the electrolytic solution interface resistance after 2000 cycles of charge capacity can be maintained at more than 95%Graphene supercapacitors having broad application prospects in power energy storage device of high power / high energy density3 since graphene integrated circuit includes a ultra high electron transport capability and good thermal conductivity, is considered to replace the graphene silicon is now widely used and has become the foundation of the next generation of integrated circuitsIn 2010, a US research team developed the first block of graphene transistors, and integrated into a complete integrated circuit2016, Chinese scientists have developed the first block of the low-noise amplifier monolithic integrated circuit4 graphene graphene functional coating itself a high specific surface area, high thermal conductivity, high electrical conductivity, high strength properties, making it an important new generation additive coatings, rubber, plastics and other products, can be comprehensive approach to improve the characteristics of traditional productsOne of the most prominent effect of performance in heavy duty coatings, conductive coatings, thermal coatings, antistatic coatings and other products, the graphene exhibits excellent performance, there have been products on the market production5 graphene heat generating component in a number of applications of graphene in the graphene heating element should be the fastest growing, but also a field of application in the forefrontIn the electric heater and electric heating module aspects we have more products Graphene heating principle is: the carbon molecules in the electric film phonons generated, ions and electrons in the case where the resistance across the electrodes energized heating film graphene, carbon molecules produced friction between the groups, the collision (also called Brownian motion) and generating thermal energy, and thermal energy in a planar manner by controlling the wavelength of far-infrared radiation uniformly out of 6-15 microns, more active electrothermal energy conversion rate of 99% of the total, while with a special graphene superconductive material, to ensure stable heat generation performance Compared with conventional heating a graphene heating film heating film is made of the advantages of a graphene has the following advantages: conventional heating graphene film PET material generally used organic film, which the advantage of good flexibility, flexural, the structure can be made of different shapes, resistant to moisture, to facilitate storage and transportation, but the drawback is not high temperature (temperature not exceeding 180 [deg.] C), poor durability, short life, poor thermal conductivity Therefore organic film is suitable for low temperature requires bending places, such as floor heating, wall heating, heating clothes, heating pad, etc., can not be used in stoves, boilers, ovens and other high-temperature heat places a New Inorganic graphene heating a slurry of G500 as a professional Ammi micro-nano inorganic nonmetallic materials solutions, heating the slurry introduced G500 graphene based inorganic adhesive temperature will change traditional electric graphene material, not only the long-term use below 600 ℃, oxidation does not decompose, no power attenuation, and to solve the traditional electric material without the graphene temperature, easy to aging decomposition, flammable, the shortcomings of poor heat conductivity The advantages: G500 can be used in addition to the field of low-temperature heating, high temperature heating may be applied in the field, to make up for the deficiencies of traditional organic graphene film, greatly expanding the range of applications in high temperature heat graphene field This article provides technical support by the "one editor with the" Shenzhen Institute of Technology paint to lead the industry toward global deep TU Xue Description: According to the Shenzhen Municipal Science and Technology Association [2012] No 13 "About approval agreed to set up Shenzhen Institute of coating technology" and Shenzhen Municipal Civil Affairs Bureau [2012] No 265 "About Shenzhen City paint technology Institute set up registration approval" and other documents Shenzhen City Paint Technology Institute in 2012 April 28 was officially established in Shenzhen Coatings Technology Society established the National Conference gathered paint industry well-known enterprises and stakeholders a total of more than 400 people, attracted more than 200 well-known companies added to learn paint
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