Graphite Fluoride
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Graphite Fluoride
Graphite Fluoride is used as Solid lubricants, nuclear reactor neutron moderators and electrode active materials, reflective materials, etc.
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Graphite Fluoride is widely used as an active material for high-energy batteries. Graphite Fluoride replaces fluorine as the positive active material, and combined with metal gallium and an organic solvent dissolved in LiBF4 or LiClO4, it can form a battery with high output power, high energy and high density. From the battery sequence point of view, the combination of F 2 and Li is ideal, but F2 has strong oxidizing properties and is very difficult to use. Based on the idea that fluorinated graphite can keep active fluorine in a solid state, Watanabe et al. used Graphite Fluoride as a battery active material. In a non-aqueous battery composed of Graphite Fluoride as the cathode and kangpoule as the anode, fluorine is stored in solid graphite, making the graphite an active material, creating favorable conditions for the energy density and stability of the battery. Practice has confirmed that Graphite Fluoride batteries have great advantages in potential stability and energy density.
According to the degree of fluorination, Graphite Fluoride can be divided into:
The low fluoride graphite: CF (0-049)
The medium fluoride graphite: CF (0.5~0.99)
The high fluoride graphite: CF (1.0~1.25). -
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Fluorinated Graphite Lubricant
As a new type of solid lubricant, Fluorinated Graphite Lubricant has better lubricity than graphite and aluminum disulfide, especially in harsh atmosphere, high speed, high pressure and high temperature conditions, and it has better effect, and does not corrode metals and other materials. The reason why Fluorinated Graphite Lubricant has such excellent lubricating properties is mainly because fluorine atoms enter between the graphite layers and form covalent bonds with the electrons, resulting in a significant reduction in the bond energy between the graphite layers, only 2Kcal/mol, which is far greater than that of the raw graphite. The interlayer energy of 9Kcal/mol is as low as 9Kcal/mol, which is the fundamental reason for the excellent lubricating properties of Fluorinated Graphite Lubricant. In addition, because the upper and lower surfaces of the graphite hexagonal network plane layer are densely bound with fluorine atoms, and the fluorine atoms between the layers have repulsive forces with each other, which can offset the pressure from the outside, so the Fluorinated Graphite Lubricant can fully express Excellent lubricating properties.
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At a temperature of 320 °C, the friction coefficient of graphite is 0.53, while that of Fluorinated Graphite Lubricant is only 0.10.
As the fluorine content increases, graphite changes from gray-black to snow-white; the higher the degree of fluorination, the better the lubricating properties of Fluorinated Graphite Lubricant. -
Super Lubricating Material
As a Super Lubricating Material, fluorinated graphite is widely used as solid lubricant or lubricant additive. Graphite fluoride Super Lubricating Material has high lubricity unmatched by graphite and molybdenum disulfide. The reason is that the surface energy of fluorinated graphite is low, the bond energy between layers is also small, and it has good thermal and chemical stability. Therefore, fluorinated graphite Super Lubricating Material can maintain good lubricating properties in almost all atmospheres, so as a solid lubricant, it is especially suitable for use in harsh conditions such as high temperature, high pressure, high load and corrosive media. As a solid lubricant, Super Lubricating Material can be used as a singeing machine for cloth finishing, sliding parts of heating equipment automatic control devices, crane guide wheels and sliding parts, bearings of high-precision coordinate filing machines, computer relay support points, machine tool clutches, etc. of additives. Lubricity as gland packing, used as gland packing for reciprocating pumps, rotary pumps, mixers and various valves. Graphite fluoride Super Lubricating Material can also be used as a cutting agent to prevent pore blockage and arc extinguishing of abrasive tools such as diamond grinding wheels. Graphite fluoride Super Lubricating Material can be used as a mold release agent for mold casting, plywood molding, powder molding, sintering and pressing, plastics, etc., and can be used as an abrasive for optical sheet grinding.
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