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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 Concentrate through physical and chemical action. The nano-MoS2 obtained is refined further to remove impurities, such as Ca and Cu. This nano-MoS2 is made in a way that maintains the MoS2 crystal structure, provides good lubrication, 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 lubricating effect below 1300 degrees.
Chemical synthesis
Synthetic methods are able to prepare sulfides in a variety of functionalities. They can also produce sulfides containing high purity and fewer impurities. 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. Generally, there are only two preparation methods. You can reach nano-MoS2 directly by reacting a Molybdenum or a Tungsten source with sulfur, or you can use a reaction to first obtain a precursor and then reduce it to MoS2.
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 abrasion resistance of the material, reduce the noise, and lower the coefficients friction. Graphite, molybdenum, disulfide of copper, lead and other materials are some examples.
(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 mainly used to adjust the thermal stability of a material as well as its working stability.
Molybdenum diulfide offers good dispersibility and wear resistance as well as noise reduction. Addition of molybdenum disulfide to brake pads 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 material becomes more aggressive due to the increased friction temperature. Molybdenum dioxide oxidizes and forms molybdenum trioxide.
Anti-oxidant, anti-falling and other: Molybdenum Disulfide is a little acidic. It protects the friction materials by covering the surface. This prevents other materials from oxidizing.
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 4.5 to 5.2. As the fineness increases the specific surface increases and the specific density decreases.
(aka. Technology Co. Ltd., a trusted global chemical supplier & manufacturer has over 12 years experience in providing super-high-quality chemicals and nanomaterials. 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.
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 Concentrate through physical and chemical action. The nano-MoS2 obtained is refined further to remove impurities, such as Ca and Cu. This nano-MoS2 is made in a way that maintains the MoS2 crystal structure, provides good lubrication, 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 lubricating effect below 1300 degrees.
Chemical synthesis
Synthetic methods are able to prepare sulfides in a variety of functionalities. They can also produce sulfides containing high purity and fewer impurities. 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. Generally, there are only two preparation methods. You can reach nano-MoS2 directly by reacting a Molybdenum or a Tungsten source with sulfur, or you can use a reaction to first obtain a precursor and then reduce it to MoS2.
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 abrasion resistance of the material, reduce the noise, and lower the coefficients friction. Graphite, molybdenum, disulfide of copper, lead and other materials are some examples.
(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 mainly used to adjust the thermal stability of a material as well as its working stability.
Molybdenum diulfide offers good dispersibility and wear resistance as well as noise reduction. Addition of molybdenum disulfide to brake pads 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 material becomes more aggressive due to the increased friction temperature. Molybdenum dioxide oxidizes and forms molybdenum trioxide.
Anti-oxidant, anti-falling and other: Molybdenum Disulfide is a little acidic. It protects the friction materials by covering the surface. This prevents other materials from oxidizing.
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 4.5 to 5.2. As the fineness increases the specific surface increases and the specific density decreases.
(aka. Technology Co. Ltd., a trusted global chemical supplier & manufacturer has over 12 years experience in providing super-high-quality chemicals and nanomaterials. 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.