Molybdenum Disulfide MoS2 For Lubrication
Recently, covid 19 outbreak spreads in Shanghai, China. There are more than 25,000 new asymptomatic domestic infections every day. China is implementing a dynamic zero-out policy. A leading respiratory expert said the key to COVID-19 prevention and control is to minimize transmission and fatality rate. Omicron has a low case fatality rate but is highly transmissible and can still claim many lives in large outbreaks. "Total openness is not applicable in China. For China, we should keep to the dynamic zero-out and gradually open up."
However, "dynamic zero clearance" is not the pursuit of complete "zero infection". As the Novel Coronavirus has its own uniqueness and strong concealment, there may be no way to prevent the detection of cases at present, but rapid detection and prompt treatment must be carried out, as soon as one case is found, one case will be dealt with.
The situation in Shanghai is serious. As the financial center of China, Shanghai is a very important city, and the outbreak of the epidemic in Shanghai will put a great impact on China's economy. The current task is to contain the spread of the epidemic as soon as possible, to achieve social zero so that Shanghai's life and economy quickly return to normal.
As China plays an important role in the global supply chain, the outbreak will have a significant impact on the supply and prices of many MoS2 powder.
Molybdenum disulfide (MoS2) is known as the "king of lubrication" and has its unique advantages in the field of lubrication. It has a layered structure and still maintains good lubrication performance under harsh conditions such as high temperature, high pressure, high rotation, ultra-low temperature and so on. Because of its low friction coefficient, MoS2 is a natural excellent solid lubricant. It also has excellent properties, such as natural weak alkalinity, excellent antioxidant capacity, used in the aviation field, can extend the mileage of engine oil.
MoS2 is a kind of black solid powder with metallic luster, its melting point is as high as 1185℃, and its chemical stability and thermal stability are good. In the metal, the Mohs hardness is low, which is 1.0-1.5. The initial temperature of decomposition is 1370℃. When it reaches 1600℃, it decomposes into metal molybdenum and sulfur. MoS2 is insoluble in many substances, such as water, dilute acid and concentrated sulfuric acid, nor in other acids, bases and organic solvents, but it will dissolve when it comes into contact with aqua regia and boiling concentrated sulfuric acid.
The basic material of molybdenum disulfide lubricant is made of ultra-fine MoS2. When the lubricant is applied to the metal surface, a dry film will be quickly formed on the metal surface, so that the surface of the metal parts can form a protective film, which can withstand high temperature, strong pressure, toughness, parts are not easy to wear, burn and bite.
Friction wear almost appear in a variety of industries, such as aerospace, automobiles and ships, mechanical heavy industry, bearing gears, etc. MoS2 can be widely used in many occasions of lubrication. For example:
1. Slides for cabinets or drawers, guide rails for elevators, bearings for motors, etc. Under high load, these parts are under great pressure and need lubricants to reduce friction and prolong service life.
2. In the process of material processing, in order to punch and punch the material, it is necessary to apply lubricant to minimize the friction between the die and the plate, produce a finished product that meets the requirements, and prevent the surface of the material from rusting.
3. When the temperature of the rear wheel increases while driving, it is easy to throw oil, which will lead to brake failure. The application of MoS2 to the four-wheel bearing of automobile chassis can improve the lubrication performance, save oil and reduce the temperature of the four wheels when driving.
4. In some extreme conditions, fasteners, threads, etc., are easy to slip teeth or bite to death during assembly, and need to be coated with lubricant to reduce friction, prevent parts from getting stuck, and prevent rust.
Molybdenum Disulfide MoS2 Powder Supplier
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials including silicon powder, nitride powder, graphite powder, zinc sulfide, calcium nitride, 3D printing powder, etc.
If you are looking for high-quality MoS2 powder, please feel free to contact us and send an inquiry. ([email protected])
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Because of the ever-changing international situation, the supply and prices of international bulk MoS2 powder are still very uncertain.