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Graphene is a hexagonal element of carbon, after learning that its lattice arrangement is more stable, the speed of electron movement can reach 1 300 of the speed of light, at room temperature, even if the surrounding carbon atoms collide, the interference of electrons in graphene is very small, and the stability is extremely high. However, the arrangement of carbon atoms in the carbon crystal cannot achieve the optimal hexagonal crystal structure.
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The main component of carbon crystal floor heating is carbon fiber, so it is also called carbon fiber floor heating, carbon fiber and graphene completely belong to two different materials, although both are composed of carbon elements, but the arrangement of atoms is different, graphene is a two-dimensional material found so far, with superconductivity, superconductivity, ultra-stability and high heat conversion rate, is a very good heating material!
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This so-called carbon crystal floor heating is carbon fiber.
I remember that there were a lot of people who bought it when it was first introduced, but later more and more customers in the market reported the phenomenon of "thermal attenuation", which generally occurs in 2-3 years. However, graphene floor heating has passed the professional test in the industry: heat within the specified time.
The attenuation rate is much lower than the industry standard, and the service life is as long as the building. Just by looking at the effects of these two products, you can see that they are not the same thing.
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Nowadays, people are indispensable for heating products in winter, and there are many types of heating materials on the market, such as carbon fiber.
Carbon crystals, graphene, ceramics, etc. So which heating material is better? Which is better, carbon crystal heating or graphene floor heating, and what is the difference between carbon crystal heating film and graphene heating film?
The difference between carbon crystal, graphene, and carbon fiber
Heating materials are mainly divided into two types, one is the traditional resistance wire, alloy wire and other metal materials, and the other is carbon fiber, carbon crystal, graphene and other non-metallic.
of emerging materials.
Compared with traditional metal materials, emerging materials such as carbon fiber, carbon crystal, and graphene have:Greener, more comfortable, safer, hotterConversion rateTaller and more energy efficientfeatures: However, because it is an emerging material, the market for carbon crystal, graphene, carbon fiber floor heating and electric heaters is still very messy, and there is a lot of hype concept, so I will tell you the difference between carbon fiber, graphene and carbon crystal.
Graphene, carbon fibers, and carbon crystals are all carbon atoms.
Material. However, strictly speaking, there is no such thing as carbon crystal, and there is no such material as carbon crystal in official documents, only carbon fiber, so carbon crystal is just a hype statement for merchants. However, everyone thinks that carbon crystals refer to carbon particles, and there is also a saying that carbon fiber is composed of carbon crystals, and carbon fibers are reinforced and high-end carbon crystals.
If it is carbon fiber and carbon crystal (carbon particles) comparison, carbon fiberHigh temperature resistance, corrosion resistance, stability, safety and comfortwill be much better than carbon crystals.
University of Manchester, UK, 2010.
The physicist won the Nobel Prize in Physics that year for successfully extracting and separating graphene.
So these years graphene material.
It was very hyped. As a high-performance new material, graphene does have unparalleled advantages, such as very high comfort, and will not be as hot and dry as traditional floor heating; It is more energy-saving, has a high heat conversion rate, has a long service life, and so on. Graphene can be called a high-end version of carbon fiber.
However, in fact, the current graphene extraction technology is not mature, resulting in a very high production cost of grapheneTherefore, most of the graphene heating products on the market now areGimmick, and not really graphene,Even many graphene heating products are actually made of carbon crystal, but carbon crystal materials were not successfully made in the early years, so they became graphene.
In general, carbon fiber, graphene and carbon crystal, carbon fiber is currently recognized as a more mature heating material, but the domestic carbon fiber heating technology is also average, South Korea, Japan is relatively more mature.
How to choose carbon fiber, carbon crystal, and graphene heating products
If you plan to install underfloor heating, it is recommended to use plumbing for large houses; If it is a relatively small house, electric floor heating is also good, and electric floor heating gives priority to mature carbon fiber surface floor heating sheets or traditional heating cables.
If you want to buy electric carpets or electric heaters, the graphene, carbon crystals and carbon fibers advertised by merchants should be essentially similar materials, but it is still recommended to give preference to heaters with relatively mature carbon fiber or other more mature materials, such as electric oil tins, ceramic electric heaters, etc.
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Summary. Hello dear, graphene floor heating is better. The graphene composite conductive coating is used as the heating functional layer in the middle, and the bottom is covered with an emitting film to better reflect the heat upward.
After the graphite flakes are peeled into a single layer, a single layer with only one carbon atom thickness is graphene. The carbon fiber cable is linearly heated, the local heating is high, and the traces of the cable are easy to be exposed under the paved floor, so that the color of the floor becomes lighter, and the light-colored floor tiles are easy to make the color of the floor tiles yellow.
Hello dear, graphene floor heating is better. The graphene composite conductive coating is used as the heating functional layer in the middle, and the bottom is covered with an emitting film to better reflect the heat upward. After the graphite flakes are peeled into a single layer, a single layer with only one carbon atom thickness is graphene.
The imitation imitation carbon fiber cable dust fiber is heated by the line laughing, the local heating is high, and the traces of the cable are easy to be exposed under the paved floor, so that the color of the floor becomes lighter, and the light-colored floor tiles are easy to make the color of the floor tiles yellow.
All in all, the heating effect of carbon fiber electric floor heating and graphene floor heating is almost the same, but the human body feels that graphene is slightly better, and the electricity consumption in the short term is not much, and the long-term use of graphene is more dominant and more energy-saving.
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To put it simply, carbon fiber and graphite are sparsely allotropic to each other.
As the name suggests, carbon fiber not only has the inherent intrinsic characteristics of carbon materials, but also has the soft processability of textile fibers, and is a new generation of reinforced fibers. Compared to conventional glass fiber (GF), Young's modulus is more than 3 times that; Compared with Kevlar fiber (KF-49), it not only has about twice the Young's modulus, but also does not dissolve or swell in organic solvents, acids and alkalis, and has outstanding corrosion resistance. In 1981, some scholars soaked Pan-based CF in a strong alkali NaOH solution, and more than 20 years have passed, and it still maintains its fiber form.
Graphene is a two-dimensional crystal, and its greatest characteristic is that the speed of movement of electrons in it reaches 1 300 of the speed of light, which far exceeds the speed of electrons in ordinary conductors. This makes the electrons in graphene, or more accurately, "electric."
charge
carrier), which is very similar in nature to relativistic neutrinos. Graphite is formed by stacking layers of planar carbon atoms arranged in a honeycomb-like orderly manner, and the interlayer force of graphite is weak, and it is easy to peel off each other to form thin graphite sheets. When the graphite sheet is peeled into a single layer, this single layer, which is only one carbon atom thick, is graphene.
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1. Graphene: It is a two-dimensional carbon nanomaterial composed of carbon atoms with sp hybrid orbitals and a hexagonal honeycomb lattice.
2. Carbon fiber floor heating: use electricity to obtain heat through the oscillation of carbon fiber molecular activity and Brownian motion.
2. Carbon fiber floor heating: The energy saving of the carbon fiber floor heating system is achieved through room temperature control and thermal insulation. In the same case, the cost of carbon fiber underfloor heating at full load is about 85% of that of central heating.
In the case of full application of sub-room control, the cost can reach as low as 1 3 of the cost of central heating.
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This must be graphene, graphene, known as "black gold", and it is also a strategic material for the future of the country, which can be imagined
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Electric floor heating uses graphene heating film as the heating element, which is used to lay under various floors, tiles, marble and other ground materials, and then equipped with an intelligent thermostat system to form a comfortable and environmentally friendly, high-efficiency and energy-saving, maintenance-free, independent use of each room, long life, and hidden floor heating system. Therefore, the advantages of graphene floor heating are also obvious, because the low-temperature radiant floor heating system uses radiant heating, giving people a feeling of warmth and comfort as in the open sun. There is no dry and stuffy feeling that comes with traditional heating systems.
The carbon fiber floor heating is not only ultra-thin as a whole, but most importantly, it is installed directly under the floor, so it will not occupy the available space indoors, nor will it make the indoor floor height appear too low, whether it is a small apartment or a villa area. In addition, the installation cost of carbon fiber floor heating in the early stage is relatively low, and a 100-square-meter house needs to cost no more than 10,000 yuan, so in terms of installation costs, the cost of carbon fiber floor heating is relatively low.
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The general definition of graphene must have been understood by many people. Generally speaking, graphene refers to a single-layer two-dimensional carbon nanomaterial composed of carbon atoms with sp hybrid orbitals, and is a hexagonal honeycomb lattice. Yes, there is only one layer.
Later, it was found that sometimes the performance of double-layer or 3-5 layer graphene is better. The International Organization for Standardization (ISO) has determined that when the number of layers is less than or equal to 10 layers, it can be called graphene, otherwise, it should be called graphite.
The article cites Antonio H. of the National University of SingaporeA survey conducted by Castro Neto's team on commercial graphene materials on the market. The report notes that the effectiveness of a large number of graphene-related studies may be underestimated due to the low quality of the commercial graphene used.
This article was originally published in AdvancedMaterials, a top journal of materials science, on September 13, 2018.
Then, the fundamental difference between graphite and graphene lies in the essential difference of its physical and chemical properties, as for the division of the number of layers, it is only a value artificially determined based on the law of change of its physical and chemical properties, and it is not a complete dividing line. When the thickness of a graphite sheet is reduced to several graphene sheets, many important properties of the material are changed, such as the specific surface area per unit mass of the material, the mechanical flexibility of the monolithic layer, etc.
antonio h.Researchers from the Castro Neto team published the results of their research on graphene material systems from more than 60 manufacturers, and they found that most of the so-called graphene products are actually graphite powders, not real graphene.
Without strict quality control, there will be no good quality. Rigorous scientific attitude is the basic quality in the development process of Nuanfeng electric heating, which is not only applicable to graphene research, but also applicable to the application enterprises in various fields of graphene materials.
How to distinguish real from fake graphene.
Because graphene is a nano-scale material, ordinary institutions are helpless, and consumers cannot distinguish its authenticity. Hundreds of millions of testing equipment are not available for ordinary institutions.
At present, the graphene electric heating film floor heating brand on the market is chaotic, and Nuanfeng has more than 20 years of independent research and development and production experience, is the industry's big card, if you want to install graphene floor heating at home, then I think this is the best choice.
Why do you want to add graphene to the electric heating film, it is very simple, graphene is a new type of material at present, and graphene has attracted the attention of the world as soon as it came out. The electron mobility in graphene is much higher than in silicon. So graphene floor heating is quite energy-efficient and high heat conversion.
The brand's technology in R&D and design is very original and very personal.
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Graphene will not burn, the simple way is to use fire to burn, the Chinese often say that real gold is not afraid of fire to refine, the rest is not graphene to know. Hope it helps.
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Your product is not graphene, but ink and metal sheet heat
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Fake, pure flickering.
Graphene is a hot spot, solar energy is a hot spot, photovoltaic is a hot spot, and new energy is a hot spot. No matter which hot spots, there are always some unscrupulous companies that work hard to take advantage of these hot spots. When these hot spots were rubbed into a mess, they dispersed like a swarm.
Floor heating is floor heating, it is the use of nanotechnology, the use of space energy, the use of graphene, it is still floor heating, and it is just floor heating.
It is safe to say that the so-called floor heating using these technologies not only cannot save electricity, but also is very expensive and very cost-effective.
It is not advisable to put too much faith in these nonsense gimmicks of unscrupulous manufacturers or merchants.
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When people think of winter, they always think of the cold wind, the snow, and at the same time, they seem to be able to feel the cold of winter. Especially in the north, it often reaches minus ten degrees, and in some places it can reach minus thirty or forty degrees, plus the whistling north wind, it is even colder. But fortunately, there is heating in many places, at least people are still warmer in the house, and heating is also divided into two categories, one is open heating, and the other is floor heating, among them, bright heating is used more. >>>More