ChlOrOdimethylOctadecylsilane, with the CAS number 18643-08-8, is a high - quality product provided by our factory at the best price. It is a type of organosilane compound. The chemical formula of ChlOrOdimethylOctadecylsilane is C₂₀H₄₃ClSi.
Physically, it appears as a clear to slightly yellowish liquid at room temperature. It has a certain molecular weight, and the specific value depends on its precise molecular structure. In terms of solubility, it is soluble in some common organic solvents such as toluene, hexane, and dichloromethane, but has limited solubility in water. The boiling point and melting point are important physical parameters. The boiling point of ChlOrOdimethylOctadecylsilane is relatively high, which makes it suitable for some high - temperature applications.
1. Surface Modification: ChlOrOdimethylOctadecylsilane is widely used in surface modification applications. It can be used to modify the surface properties of inorganic materials such as glass, silica, and metal oxides. By reacting with the hydroxyl groups on the surface of these materials, a hydrophobic and oleophobic layer can be formed, which improves the water - repellency and anti - adhesion properties of the surface.
2. Lubricant Additive: It can also be used as an additive in lubricants. Adding ChlOrOdimethylOctadecylsilane to lubricants can reduce friction and wear between moving parts, thereby improving the efficiency and service life of mechanical equipment.
3. Coating Industry: In the coating industry, this product can be incorporated into coatings to enhance their performance. It can improve the adhesion of the coating to the substrate, as well as the chemical resistance and weatherability of the coating.
Before using ChlOrOdimethylOctadecylsilane, proper safety precautions should be taken. Wear appropriate personal protective equipment, such as gloves and goggles.
For surface modification, the substrate should be cleaned thoroughly to remove any contaminants. Then, the ChlOrOdimethylOctadecylsilane can be dissolved in a suitable organic solvent to form a solution. The solution is then applied to the surface of the substrate by methods such as dipping, spraying, or spin - coating. After application, the substrate is usually heated to a certain temperature to promote the reaction between the silane and the surface of the substrate.
When used as a lubricant additive, it should be added to the lubricant in an appropriate proportion. The specific proportion depends on the type of lubricant and the application requirements. It should be mixed evenly to ensure consistent performance.
1. Glass Surface Modification: A glass manufacturer wanted to improve the water - repellency of its glass products. They used a solution of ChlOrOdimethylOctadecylsilane in toluene to treat the glass surface. After treatment, the contact angle of water on the glass surface increased significantly, indicating improved water - repellency. This made the glass easier to clean and more resistant to stains.
2. Metal Lubrication: An automotive parts manufacturer was experiencing high wear and friction in its engine parts. They added a small amount of ChlOrOdimethylOctadecylsilane to the engine oil. After a period of testing, they found that the wear of the engine parts was reduced, and the fuel efficiency of the engine was improved.
3. Coating for Building Materials: A company producing exterior wall coatings wanted to enhance the weatherability of its coatings. They incorporated ChlOrOdimethylOctadecylsilane into the coating formulation. The resulting coatings showed better resistance to UV radiation, moisture, and chemical corrosion, which extended the service life of the exterior walls.
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