摘要:
The invention relates to a lubricant coating (5) for a medical injection device (1), comprising successively: —a bottom layer (50) in contact with the medical device surface (21) of the container to be lubricated, comprising a mixture of cross-linked and non-cross-linked poly-(dimethylsiloxane), —an intermediate layer (51) consisting essentially of oxidized poly-(dimethylsiloxane) and having a thickness comprised between 10 and 30 nm and, —a top layer (52) consisting essentially of non-cross-linked poly-(dimethylsiloxane) and having a thickness of at most 2 nm. The invention also relates to a medical injection device comprising such a lubricant coating, and a manufacturing process for said coating.
摘要:
A method of using lubricant compositions to reduce wear between two surfaces exposed to a load condition of at least 1 GPa is provided. The lubricant compositions comprise polysiloxane base oils having alkylaryl or a combination of alkyl and aryl functionality. The polysiloxane base oils may be defined according to the formula: wherein R, R′, and R″ are independently selected, such that R is an alkyl group having between 1-3 carbon atoms; R′ is an alkylaryl group comprising alkyl functionality with 3-12 carbon atoms and aryl functionality with 6 to 12 carbon atoms; R″ is an alkyl group having between 1-3 carbon atoms or an alkylaryl group comprising alkyl functionality with 3-12 carbon atoms and aryl functionality with 6 to 12 carbon atoms; and m and n are integers, such that 8
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:
The present application is directed to methods and devices for altering material properties of lubricants and other cross-linkable compounds comprising organic or organometallic materials through exposure to energized gaseous species. The energized gaseous species may create reactive sites among lubricant molecules that may alter their material properties by cross-linking at least a portion of the lubricant molecules. The cross-linked lubricant may reduce the ability of the lubricant to migrate away when force is applied between lubricated sliding friction surfaces.
摘要:
Heat-transfer fluids and lubricating fluids comprising deaggregated diamond nanoparticles are described herein. Also described are composites comprising deaggregated diamond nanoparticles, and methods of making such composites. Method of using deaggregated diamond nanoparticles, for example, to improve the properties of materials such as thermal conductivity and lubricity are also disclosed.
摘要:
The present application is directed to methods and devices for altering material properties of lubricants and other cross-linkable compounds comprising organic or organometallic materials through exposure to energized gaseous species. The energized gaseous species may create reactive sites among lubricant molecules that may alter their material properties by cross-linking at least a portion of the lubricant molecules. The cross-linked lubricant may reduce the ability of the lubricant to migrate away when force is applied between lubricated sliding friction surfaces.
摘要:
An article with different surface properties on opposing sides is provided including a sheet having a first side and a second side, wherein the first side displays low adhesion properties, said first side comprising a roughened, porous or structured surface and a wetting liquid disposed upon the surface to form a stable liquid film; and wherein the second side displays a second property dissimilar from that of the first side. The article can be adhered to a variety of objects to impart anti-fouling properties.
摘要:
Provided is a polycarbonate-based resin composition for sliding use including 0.01 to 1 part by mass of an antioxidant with respect to 100 parts by mass of a polycarbonate-polyorganosiloxane copolymer which has structural units represented by a general formula (A) and structural units represented by a general formula (B), which contains a polyorganosiloxane block moiety containing the structural units represented by the general formula (B) at a content of 1 to 30 mass %, and which has an average repetition number of the structural units represented by the general formula (B) of 110 to 1000. The polycarbonate-based resin composition for sliding use has a specific structure having improved wear resistance, in particular, improved sliding property. Also provided is a molded article using the resin composition, and excellent in wear resistance and sliding property.
摘要:
Articles having reduced sliding frictional force comprising a lubricant applied to one or more surfaces of the article, and the lubricant-coated surface treated by exposing the surface to an energy source, wherein the energy source is an ionizing gas plasma at about atmospheric pressure. The ionizing gas plasma may be a flame plasma. One or more of the surfaces may be exposed to the ionizing gas plasma at about atmospheric pressure prior to application of the lubricant.