1. Product Core Positioning
Lubricating Graphite Micropowder is a micrometer sized functional lubricating material prepared from high-purity natural flake graphite or artificial graphite through processes such as ultrafine grinding, high-temperature purification, and surface modification (such as silane coupling and fatty acid coating). Its core value lies in relying on the unique layered crystal structure of graphite to achieve the dual function of "ultra-low friction+long-term protection". It can replace traditional oil-based and grease based lubricants, provide stable lubrication for mechanical components under extreme working conditions, and has the advantages of environmental protection, pollution-free, and strong weather resistance. It is a key basic material for industrial equipment lubrication and material modification.
2. Core Product Features
(1)Excellent Lubrication Performance
The van der Waals forces between graphite layers are weak, and interlayer sliding is prone to occur under external forces. The friction coefficient can be as low as 0.05-0.15 (much lower than the 0.3-0.5 of traditional metal lubricants), which can significantly reduce the wear rate of mechanical components and extend the service life of equipment; And the lubrication effect is not affected by load fluctuations, and remains stable under heavy load (≤ 50MPa) conditions.
(2)Wide Temperature Range and Environmental Adaptability
Lubricating Graphite Micropowder can work stably in the range of -200 ℃ (no brittleness or solidification at low temperature) to 1200 ℃ (in an inert atmosphere, with no melting or combustion at high temperature), and can be used at a maximum temperature of 600 ℃ in an air environment. At the same time, it is resistant to moisture and dust, and the lubricating film is not easy to fail under conditions of 80%-95% humidity and high dust levels.
(3)High Purity and Low Impurities
The regular model has a fixed carbon content of ≥ 99.0%, while the high-end model can reach 99.95%, with an ash content of ≤ 0.5% (high-end ≤ 0.1%). It is free of harmful impurities such as sulfur, lead, and cadmium, avoiding corrosion of equipment or environmental pollution, and complies with environmental standards such as RoHS and REACH.
(4)Excellent Dispersion and Adhesion
After surface modification treatment, it can be uniformly dispersed in carriers such as mineral oil, synthetic grease, resin, water, etc., with a dispersion stability of ≥ 48 hours (no obvious settling); And it has strong adhesion on the surface of substrates such as metals, ceramics, and engineering plastics, with a lubricating film bonding force of ≥ 5MPa (grid test), and is not easily detached due to vibration or impact.
(5)Strong Chemical Stability
Resistant to dilute acids (5% hydrochloric acid, sulfuric acid), dilute alkalis (5% sodium hydroxide), and most organic solvents (ethanol, acetone, mineral oil), does not react chemically with common industrial media, and can be used for a long time in corrosive conditions (such as chemical equipment, marine machinery).
3. Main Application Areas
|
Application Field |
Specific Application Scenarios |
|
Mechanical Manufacturing Industry |
Dry lubrication/oil lubrication additives for moving parts such as bearings, gears, rails, chains, etc; Long term lubricating coating for machine tool spindle and screw |
|
Automotive Industry |
Engine piston ring lubrication coating, brake pad anti friction modifier, transmission system gearbox lubricant (replacing some gear oil) |
|
Metallurgical Industry |
Aluminum/copper extrusion mold release agent, continuous casting crystallizer lubricant additive, hot rolling roller bearing lubrication |
|
Plastic Rubber Modification |
Engineering plastics (PA, POM, PTFE) self-lubricating modified fillers (with an addition amount of 5% -10%, improving wear resistance by 30% -50%); Rubber sealing ring friction reducer |
|
New Energy Sector |
Conductive lubricating additives for lithium battery negative electrode materials (improving conductivity and cycle life); Long term lubricant for wind power equipment gearbox |
|
Aerospace Field |
High temperature lubricating materials for spacecraft joint bearings and satellite deployment mechanisms; Lubrication of Aircraft Engine Accessory Transmission System |
|
Building Materials Industry |
Lubrication of supporting wheel bearings for cement rotary kilns and mold demolding lubrication for ceramic tile presses |
4. Key Technical Parameters
|
Technical Indicators |
Conventional Model (Universal Grade) |
High-end Model (Precision Grade) |
Test Standard |
|
Particle Size Distribution (D50) |
1-5μm / 5-10μm / 10-20μm |
0.5-1μm / 1-3μm |
Laser Particle Size Analyzer (GB/T 19077.1) |
|
Fixed Carbon Content |
≥99.0% |
≥99.95% |
High temperature burning method (GB/T 3521) |
|
Ash Content |
≤0.5% |
≤0.1% |
Muffle furnace burning method (GB/T 1429) |
|
Moisture |
≤0.3% |
≤0.1% |
Karl Fischer method (GB/T 6283) |
|
pH Value (10% Aqueous Solution) |
6.5-8.0 (neutral) |
7.0-7.5 (near neutral) |
Determination of pH by pH meter (GB/T 6368) |
|
True Density |
2.1-2.3g/cm³ |
2.25-2.3g/cm³ |
Density bottle method (GB/T 208-2014) |
|
Friction Coefficient (Steel-Steel) |
0.08-0.15 |
0.05-0.08 |
Reciprocating Friction and Wear Testing Machine (GB/T 39862) |
|
Maximum Operating Temperature |
Air environment ≤ 600℃; Inert atmosphere ≤ 1000℃ |
Air environment ≤ 800℃; Inert atmosphere ≤ 1200℃ |
Thermogravimetric analysis (TGA, GB/T 27761) |
|
Surface Modification Type |
Unmodified/fatty acid modified |
Silane modification/Polyether modification |
Infrared spectroscopy (FTIR) verification |
Note
Particle size, surface modification type (such as hydrophilic modification for water-based systems and oleophilic modification for oil-based systems), purity, and other parameters can be customized according to customer needs; Provide a quality inspection report (COA) for bulk supply, including measured data for all the above indicators.
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