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Molybdenum disulfide It has excellent properties, and has a broad range of application possibilities. Therefore, a lot has been researched on the preparation and use of nano-MoS2 both at home as well as abroad.
Natural law
MoS2 may be prepared naturally, using the molybdenite concentrat purification method. The method involves removing the acid-insoluble matter (SiO2, Fe, Copper, and molybdenite) from high quality molybdenum concentration through physical or chemical actions. The nano-MoS2 obtained is refined further to remove impurities, such as Ca and Cu. The nano-MoS2 produced by this method is capable of maintaining the MoS2 crystal form, it has good lubricating properties, and can be used to make lubricants. The nano-MoS2 that is produced using the natural method has a low purity, and purification technologies need to be improved. If the temperature of the atmosphere is less than 400, the lower-cost MoS2 is recommended. MoS2 offers a better lubrication below 1300 degrees.
Chemical Synthesis
The synthetic method is able to prepare sulfides in different sizes and puritys, with less impurities. It can also be tailored to meet specific functional requirements. Synthetic methods have always been popular for producing nano-sulfides. There are a number of methods to prepare nano MoS2, including ammonium trithiomolybdate thermal oxidation, hydrogen sulfide, sulfur vapor reduction, high energy ball milling, carbon nanotube confinement, hydrothermal synthesis, high energy physical method and chemical combination, among others. There are two main preparation methods. You can reach nano-MoS2 directly by reacting either a tungsten, molybdenum or sulfur source.

Useful Information
As an effective anti-friction agent, molybdenum disulfide The raw materials of brake pads include four parts: binder, reinforcing fiber, friction performance modifier, and filler. Four parts make up the composition of brake pads: binder fiber, friction performance modulator, and filler. The friction performance modifiers fall into two different categories.
(1) Anti-friction material: Addition of this material can increase the material’s resistance to abrasion, reduce the noise level, and lower the coefficient friction. Graphite, lead, molybdenum, copper and other materials are some of the most common.
(2) Friction material The friction coefficient can be increased by adding this material. Inorganic fillers as well some metals, their oxides and most of the inorganic materials fall under this category. The friction modifier is primarily used to adjust the material’s thermal and working stability.
Molybdenum diulfide offers good dispersibility and wear resistance as well as noise reduction. Addition of molybdenum disulfide to the brake pad has the following main functions:
Anti-friction: Molybdenum Disulfide processed through jet pulverization can have a particle size between 1.5-20 microns. It has an excellent dispersion and anti-friction performance.
Increased friction The friction temperature causes molybdenum dioxide to oxidize and form molybdenum trioxide. It expands when temperature increases.
Anti-oxidation, anti-falling and other: Molybdenum Disulfide is acidic. It protects the surface from oxidation, is difficult to remove, and adheres strongly.
Expansion: The internal voids can increase when the friction material is heated to a high temperature. However, molybdenum oxide can compensate for this.
Reduce the specific gravity The specific gravity for molybdenum diulfide is between 4.5-5.2. As the fineness increases the specific surface increases and the specific density decreases.

(aka. Technology Co. Ltd., a trusted global chemical supplier and manufacturer has over 12 years experience in providing super-high-quality chemicals. The molybdenum disulfide Please note that the products produced by our company are of high purity and have low impurity. Please. Contact us if necessary.

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