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Introduction of Molybdenum Disulfide MoSi2 Powder- The Good Solid Lubricant

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Update time : 2021-06-03 09:56:15
Molybdenum disulfide (MoS2) is an important solid lubricant and is known as the "king of solid lubrication."

Molybdenum disulfide is a solid powder made from natural molybdenum concentrate after chemical purification. The color of the product is black with a slight silver gray, metallic luster, slippery to the touch, and insoluble in water. Molybdenum disulfide has the advantages of good dispersibility and non-sticking. It can be added to various greases to form a non-sticky colloidal state, increasing the lubricity and extreme pressure of the grease.

Molybdenum disulfide is also suitable for high-temperature, high-pressure, high-speed, and high-load mechanical working conditions to extend the life of the equipment; the main function of molybdenum disulfide for friction materials is to reduce friction at low temperatures and increase friction at high temperatures with small loss on ignition.


Molybdenum disulfide (MoS2) has a wide range of applications as a good solid lubricant, and the following working conditions are applicable:
1. Lubrication under wide temperature conditions: the applicable range of lubricating oil and grease is about 60°C to 350°C. The molybdenum disulfide solid lubricant can be applied to the operating temperature range of 270°C to 1000°C.

2. Lubrication under heavy load conditions: The oil film of general lubricating oil and grease can only bear relatively small loads. Once the load exceeds the limit value it can bear, the oil film will rupture and the friction surface will seize. The average load that the solid lubricating film can bear is 108Pa.

3. Lubrication under vacuum conditions: Under high vacuum conditions, general lubricating oils and greases are highly evaporative, which can easily damage the vacuum environment and affect the performance of other components. Generally, molybdenum disulfide solid lubricating materials are used for lubrication.

4. Lubrication under radiation conditions: Under radiation conditions, general liquid lubricants will polymerize or decompose and lose their lubricating properties. Solid lubricants have better radiation resistance.

5. Lubrication of conductive sliding surface: The friction of conductive sliding surfaces such as motor brushes, conductive sliders, solar collector rings and sliding electrical contacts on artificial satellites working in a vacuum, can be made of carbon graphite or metal The composite material is lubricated.

6. Severe environmental conditions: severe environmental conditions, such as transportation machinery, engineering machinery, metallurgical and steel industry institutions, mining machinery and other transmission parts working in harsh environments such as dust, sand, high temperature and humidity, can be used Molybdenum disulfide solid lubricant for lubrication.

7. Corrosive environments: such as ship machinery, chemical machinery and other transmission parts working in corrosive media such as water (steam), sea water, acid, alkali, salt, etc., must withstand different degrees of chemical corrosion. The transmission parts working in this situation can be lubricated with molybdenum disulfide solid.

8. The environment is very clean: the transmission parts in the electronics, textile, food, medicine, paper, printing and other machinery need to avoid contamination, and MoS2 solid lubricant can be used for lubrication.

9. Occasions without maintenance: Some transmission parts do not need maintenance, and some transmission parts need to reduce the frequency of maintenance in order to save costs. In these occasions, the use of MoS2 solid lubricants is both reasonable and convenient and can save money.

Luoyang Trunnano Tech Co., Ltd (TRUNNANO) is a professional molybdenum disulfide powder with over 12 years experience in chemical products research and development. We accept payment via Credit Card, T/T, West Union and Paypal. Trunnano will ship the goods to customers overseas through FedEx, DHL, by air, or by sea.

If you are looking for high quality molybdenum disulfide powder, please feel free to contact us and send an inquiry.
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