摘要:
The present disclosure describes a strategy to create self-healing, slippery self-lubricating polymers. Lubricating liquids with affinities to polymers can be utilized to get absorbed within the polymer and form a lubricant layer (of the lubricating liquid) on the polymer. The lubricant layer can repel a wide range of materials, including simple and complex fluids (water, hydrocarbons, crude oil and bodily fluids), restore liquid-repellency after physical damage, and resist ice, microorganisms and insects adhesion. Some exemplary applications where self-lubricating polymers will be useful include energy-efficient, friction-reduction fluid handling and transportation, medical devices, anti-icing, optical sensing, and as self-cleaning, and anti-fouling materials operating in extreme environments.
摘要:
This disclosure provides low viscosity, low volatility alkylated siloxane compounds and alkylated alkoxy silane compounds. This disclosure also provides processes for producing the alkylated siloxane compounds and alkylated alkoxy silane compounds, and lubricating oil basestocks and lubricating oils containing one or more of the alkylated siloxane compounds or one or more of the alkylated alkoxy silane compounds. This disclosure further provides a method for improving one or more of solubility and dispersancy of polar additives and/or sludge in a lubricating oil by using as the lubricating oil a formulated oil containing one or more of the alkylated siloxane compounds or one or more of the alkylated alkoxy silane compounds.
摘要:
A robust and self-healing coating has been developed by incorporating a thermally self-healing chemical coating on smooth and/or roughened solid. When the chemically coated solid is combined with a lubricating fluid, the material system is capable to repel a broad range of liquids and solids. The thermally self-healing chemical coating may be applied on various industrial metals, glass and plastics, and has shown exceptionally physical and chemical robustness as compared to state-of-the-art liquid-repellent coatings.
摘要:
A composition containing one or more sulfur-containing compounds represented by the formula (R1)a(X)(R2)b wherein R1 and R2 are the same or different and are the residue of an olefin (e.g., aliphatic, aromatic or cycloaliphatic olefin) having from 4 to 40 carbon atoms, X is the residue of a thiol or polythiol, a is a value from 1 to 6, and b is a value from 0 to 6. The composition has a kinematic viscosity at 100° C. (Kv100) from 2 to 300 cst, a kinematic viscosity at 40° C. (Kv40) from 5 to 4000 cst, a viscosity index (VI) from −100 to 300, and a Noack volatility of no greater than 90 percent. A process for producing the composition, a lubricating oil base stock and lubricating oil containing the composition, and a method for improving one or more of solubility and dispersancy of polar additives in a lubricating oil containing the composition.
摘要:
The present disclosure describes a strategy to create self-healing, slippery self-lubricating polymers. Lubricating liquids with affinities to polymers can be utilized to get absorbed within the polymer and form a lubricant layer (of the lubricating liquid) on the polymer. The lubricant layer can repel a wide range of materials, including simple and complex fluids (water, hydrocarbons, crude oil and bodily fluids), restore liquid-repellency after physical damage, and resist ice, microorganisms and insects adhesion. Some exemplary applications where self-lubricating polymers will be useful include energy-efficient, friction-reduction fluid handling and transportation, medical devices, anti-icing, optical sensing, and as self-cleaning, and anti-fouling materials operating in extreme environments.
摘要:
A highly branched functionalized silicone backbone lubricating fluid which provides exceptionally low traction, a method of lowering traction coefficients in lubricating compositions, and to uses of such compositions.
摘要:
A semi-solid lubricant composition for transmission elements which is excellent in lubricity, antiwear properties, and energy-saving performance, has high reliability, and is for use as a turbine oil, machine tool oil, metal working oil, plastic working oil, cutting oil, compressor oil, vacuum-pump oil, electrical-contact oil, grease, or machine oil; and a mechanical system provided with the composition. The composition, which reduces the wear of sliding parts of a transmission element, comprises: an amide compound having one or two amide groups and forming a three-dimensional network structure; and a liquid base oil ingredient having a dynamic viscosity at 100° C. of 25 mm2/s or lower and a viscosity index of 120 or higher. The composition contains substantially no ingredients other than the amide compound and liquid base oil ingredient. The mechanical system has a transmission element including sliding parts which are provided with the semi-solid lubricant composition for transmission elements.
摘要:
A lubricating composition having an affinity for synthetic resins comprising a silicone oil and a fatty acid-modified silicone and a fatty acid ester. The lubricating coating composition is utilized in the preparation of a magnetic recording medium.
摘要:
A recording and reproducing device is provided. The device comprises a recording medium, a head giving and receiving recording signals to or from the recording medium, and a mechanism section and a circuit section giving and receiving the recording signals, wherein at least one protective film, and at least one fluorine-containing monomolecular film are formed in this order on the recording layer of the recording medium or on the surface of the head which comes into contact with said recording layer, wherein said protective film is a metal film, oxidized metal film, semi-conductor film, oxidized semi-conductor film, or organic monomolecular film, and wherein said fluorine-containing monomolecular film is formed by the chemical adsorption of a specific-type of silane compound that contains a perfluoroalkyl group at the molecular end on the surface of the protective film.