Overview of Tungsten Disulfide Lubricant Additives
Tungsten disulfide is a layered value of a gray-black hexagonal lattice. Each layer consists of two layers of sulfur atoms and two layers of sulfur atoms sandwiched between 2:1 tungsten atoms. Among them, there is a strong covalent bond between the S atom and the W atom, and the interlayer S atoms are connected by van der Waals force. The special crystal structure makes WS2 more excellent in extreme pressure performance, anti-wear and anti-wear performance, heat resistance and oxidation resistance.
Tungsten disulfide lubricating grease is a gray-black lubricating grease refined from special compound sulfonate thickened ester synthetic oil and adding tungsten disulfide solid lubricant, anti-oxidation, anti-corrosion and other additives. This ultra-high temperature grease is designed for the lubrication of friction parts and bearings operating under extremely high temperatures, heavy loads and harsh conditions such as humidity and pollution, providing maximum protection against wear and rust and corrosion. Applicable temperature range: -20～+650°C, the highest intermittent temperature resistance can reach 800°C.
WS2 Tungsten Disulfide Lubricant Additive Application
WS2 tungsten disulfide is used as solid lubricant, dry lubricant and self-lubricating composite material: Nano WS2 is the best solid lubricant, with friction coefficient of 0.01~0.03, compressive strength up to 21.0 MPa, acid and alkali corrosion resistance, excellent Excellent load resistance, non-toxic and harmless, wide operating temperature range, long lubrication life and low friction coefficient.
Nano WS2 tungsten disulfide is an important additive for the production of high-performance lubricants. The study found that adding an appropriate amount of WS2 nanoparticles to the lubricating oil can significantly improve the lubricating performance of the lubricating oil, reduce the friction coefficient by 20% to 50%, and increase the oil film strength by 30% to 40%. Its lubricating performance is far better than nano molybdenum disulfide. Under the same conditions, the base oil lubricating performance of nano-WS2 tungsten disulfide is better than that of conventional particles, and has excellent lubricating performance. The results show that the combination of fluid lubrication with reliable lubrication, with the advantage of adding nanoparticles, can achieve full-range lubrication from room temperature to high temperature (≥800 °C). Therefore, nano-tungsten disulfide can be used as an additive to synthesize a new type of lubricating system, which has broad application prospects.
Tungsten disulfide can be used as a lubricant with better performance than molybdenum disulfide, lower coefficient of friction and higher compressive strength. Stand alone equipment for high temperature, high pressure, high speed, high load and operation in chemically active media. WS2 forging lubricant is equipped with tungsten disulfide and other materials, which can prolong the life of the mold and improve the finish of the product. The filler material is configured with PTFE and nylon to make self-lubricating parts. In addition, tungsten disulfide can also be used as a petrochemical catalyst. Its advantages are high cracking performance, stable and reliable catalytic activity, and long service life.
Tungsten disulfide lubricant additive price
The price of tungsten disulfide lubricating oil additive will change randomly with the production cost, transportation cost, international situation and market supply and demand of WS2 tungsten disulfide lubricating oil additive. Tanki New Materials Co., Ltd. aims to help industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for WS2 tungsten disulfide lubricating oil additive products, please feel free to contact for the latest price of WS2 tungsten disulfide lubricating oil additive.
Tungsten Disulfide Lubricant Additive Supplier
As a global supplier of WS2 tungsten disulfide lubricant additives, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (optimal oil additives for nano-diamond, lithium stearate, nano-copper and nano-oil additives), high-purity targets, functional ceramics and structural devices, and provides OEM services.
| Physical and Chemical Data of Tungsten Disulfide WS2 | ||||
| Item No. | Size(nm) | Purity(%) | SSA(m2/g) | Density(g/m3) |
| TR-WS2-01 | 50 | ≥99.9 | 0.25 | 3.45 |
| TR-WS2-02 | 200 | ≥99.9 | 0.37 | 3.45 |
| Tungsten Disulfide WS2 Properties | |
| Molecular formula | WS2 |
| Melting point | 1250℃ |
| Water solubility | Insoluble |
| Density | 7.5g/cm3 |
| Appearance | Gray powder with metallic luster |
| CAS No. | 12138-09-9 |
| EINECS No. | 235-243-3 |
| Coefficient of friction | 0.03 |
| Compressive strength | 2100Mpa |
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