摘要:
Compounds having hindered amine and oxyalkyl amine light stabilizers can mitigate the adverse effects of actinic radiation, such as visible and ultraviolet light, in particular on substrates such as glass or ceramic substrates. Polymers derived from such compounds. Nanoparticles, substrates, such as glass or ceramic substrates, or both nanoparticles and substrates, having such compounds affixed thereto. Articles containing at least one of such polymers, nanoparticles, substrates, or compounds.
摘要:
A compound of the formula: (I) wherein: R1 is selected from H, an alkyl group, an aryl group, and combinations thereof; R2 is Rf—Y—(CH2)X—; R3 is a reactive group; Rf is a perfluorinated alkyl group; Y is selected from a bond, S(O)2—N(CH3)—, —S(O)2—N(CH2CH3)—, —S(O)2—O— —S(O)2— —C(O)—, —C(O)—S— —C(O)—O— —C(O)—NH—, —C(O)—N(CH3)—, —C(O)—N(CH2CH3)—, —(CH2CH2O)y-, —O—, and —O—C(O)—CH═CH—C(O)—O—; n is greater than 10; x is 2 to 20; and y is at least 1.
摘要:
A fluid control film is provided that includes fluid control channels extending along a channel longitudinal axis. Each of the fluid control channels has a surface and is configured to allow capillary movement of liquid in the channels. The fluid control film further includes a hydrophilic surface treatment covalently bonded to at least a portion of the surface of the fluid control channels. The fluid control film exhibits a capillary rise percent recovery of at least ten percent. Typically, the hydrophilic surface treatment includes functional groups selected from a non-zwitterionic sulfonate, a non-zwitterionic carboxylate, a zwitterionic sulfonate, a zwitterionic carboxylate, a zwitterionic phosphate, a zwitterionic phosphonic acid, and/or a zwitterionic phosphonate. A process for forming a fluid control film is also provided. Further, a process for cleaning a structured surface is provided, including providing a structured surface and a hydrophilic surface treatment covalently bonded to at least a portion of the structured surface, and soiling the structured surface with a material. The process also includes removing the material by at least one of submerging the structured surface in an aqueous fluid, rinsing the structured surface with an aqueous fluid, condensing an aqueous fluid on the structure surface, or wiping the structured surface with a cleaning implement.
摘要:
Articles having poly(vinyl alcohol)-containing (PVA-containing) and silica nanoparticle multilayer coatings are provided. More specifically, articles include a substrate and a multilayer coating attached to the substrate. The multilayer coating includes a first silica layer and a first PVA-containing layer. The first silica layer is a primer layer of the multilayer coating, and the silica layer comprises a plurality of acid-sintered interconnected silica nanoparticles arranged to form a continuous three-dimensional porous network. The PVA-containing and silica nanoparticle multilayer coatings can be used on a large variety of substrates and tend to be resistant to wet and dry abrasions, scratches, and impacts.
摘要:
A copolymer derived from a monomer mixture that includes monomers having the formulas: (A) and (B) wherein: Q is O or N; R10 is H or CH3; R11 is an organic group comprising a hydrolyzable silyl group; R12 is H or CH3; P is: (I); R1 is selected from H, an alkyl group, an aryl group, and a combination thereof; R2 is selected from an alkyl group, an aryl group, a combination thereof, and a Rf—Y—(CH2)x — group; Rf is a perfluorinated alkyl group; Y is selected from a bond, —S(O)2 —N(CH3)—, —S(O)2—N(CH2CH3)—, —S(O)2 —O—, —S(O)2—, —C(O)—, —C(O)—S—, —C(O)—O—, —C(O)—NH—, —C(O)—N(CH3)—, —C(O)—N(CH2CH3)—, —(CH2CH2O)y-, —O—, and —O—C(O)—CH═CH—C(O)—O—; n is an integer of greater than 2; x is an integer of at least 2; and y is an integer of at least 1.
摘要:
Described herein is coated article comprising: (a) a substrate comprising a ceramic, a glass, or a glass ceramic, wherein the substrate comprises a surface, the surface comprising a continuous upper portion and a plurality of lower portions, wherein each lower portion is connected to the upper portion by at least one sidewall; and (b) a first layer comprising a material capable of physical vapor deposition, wherein the first layer is disposed on the continuous upper portion and at least a portion of each sidewall and wherein at least a portion of each lower portion is free of the first layer. Methods of making such coated articles are described herein, wherein the substrate is coating via angular physical vapor deposition.
摘要:
Methods of forming an array of patterns on a substrate are provided. A replication medium is coated onto a relief structure of a patterned template and solidified. Patterned templates with the replication medium are transferred to an array of sub-regions of a tiling region of a substrate, where heat and/or radiation can be applied to the replication medium. The patterned templates are then removed from the substrate to form a patterned surface structure on the substrate.
摘要:
A method of making surface-functionalized transition metal oxide nanoparticles comprises: providing a sol comprising transition metal oxide nanoparticles dispersed in an aqueous liquid medium having a pH of less than or equal to 3.5, combining the sol with an extractant composition comprising at least one carboxylic acid and at least one organic amine, and a water-immiscible organic solvent, and separating at least a portion of the organic phase from the aqueous phase and then at least partially removing the water-immiscible organic solvent. The carboxylic acid has from 6 to 30 atoms. The organic amine is represented by the formula R2R3NH, wherein R2 is a hydrocarbyl group having from 6 to 30 carbon atoms, and R3 is H or an alkyl group having from 1 to 4 carbon atoms. The at least one organic amine is present in an amount sufficient raise the pH to at least 5, thereby forming discrete separable aqueous and organic phases. A surface-modified nanoparticle composition, a curable composition and an article comprising the same are also disclosed.
摘要:
Presently described are components of a spray application system. At least one component comprises a liquid repellent surface layer. The liquid repellent surface (e.g. layer) may comprise a porous layer and a lubricant impregnated into pores of the porous layer; a fluoropolymer; a fluorochemical material and an organic polymeric binder; or a fluorochemical material melt additive and a thermoplastic polymeric material component. The component is typically a liquid reservoir, a liquid reservoir liner, a lid for a liquid reservoir or liner, or a combination thereof. In some embodiments, the component comprises a thermoplastic polymeric material. In some favored embodiments, the component is a removable liquid reservoir or liner. In some favored embodiments, the component is a collapsible liquid reservoir or liner. The spray application system typically further comprises a gravity-fed spray gun. Also described are spray application systems, methods of using a spray application system, as well as methods of making a component of a spray application system wherein the component has a liquid repellent surface.
摘要:
The present disclosure is directed to compositions and methods for coating, particularly protecting and optionally cleaning, metallic surfaces, and articles containing such surfaces.