摘要:
The present disclosure relates to abrasive articles including conformable coatings, e.g. a hydrophilic coating, and polishing systems therefrom. The present disclosure provides an abrasive article including a ceramic body having an abrading surface and an opposed second surface, wherein the abrading surface of the ceramic body includes a plurality of engineered features each having a base and a distal end opposite the base and the ceramic body has a Mohs hardness of at least 7.5; a conformable metal oxide coating adjacent to and conforming to the plurality of engineered features, wherein the conformable metal oxide coating includes a first surface; and a conformable polar organic-metallic coating in contact with the first surface of the conformable metal oxide coating, wherein the conformable polar organic-metallic coating includes a chemical compound having at least one metal and an organic moiety having at least one polar functional group.
摘要:
A method of removing an unwanted constituent from a siliceous surface in which the method includes contacting the siliceous surface and the unwanted constituent with a multi-functional composition that includes water, a hydrophilic silane, and a surfactant, and drying the surface.
摘要:
Articles having crosslinked poly(vinyl alcohol) (PVA) and silica nanoparticle multilayer coatings are provided. More specifically, articles including a substrate, and a multilayer coating attached to the substrate are provided. The multilayer coating includes a first crosslinked poly(vinyl alcohol) (PVA) layer and a first silica layer. The first crosslinked PVA layer is an outermost layer of the multilayer coating. The first silica layer comprises a plurality of acid-sintered interconnected silica nanoparticles arranged to form a continuous three-dimensional porous network. The PVA 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 method of making a coatable composition includes: a) providing a initial composition comprising silica nanoparticles dispersed in an aqueous liquid medium, wherein the silica nanoparticles have a particle size distribution with an average particle size of less than or equal to 100 nanometers, and wherein the silica sol has a pH greater than 6; b) acidifying the initial composition to a pH of less than or equal to 4 using inorganic acid to provide an acidified composition; and c) dissolving at least one metal compound in the acidified composition to provide a coatable composition. The at least one metal compound includes at least one of a silver compound, a zinc compound, and a copper compound. Coatable compositions, antimicrobial compositions, preparable by the method are also disclosed. Antimicrobial articles including the antimicrobial compositions are also disclosed.
摘要:
Articles having crosslinked poly(vinyl alcohol) (PVA) and silica nanoparticle multilayer coatings are provided. More specifically, articles including a substrate, and a multilayer coating attached to the substrate are provided. The multilayer coating includes a first crosslinked poly(vinyl alcohol) (PVA) layer and a first silica layer. The first crosslinked PVA layer is an outermost layer of the multilayer coating. The first silica layer comprises a plurality of acid-sintered interconnected silica nanoparticles arranged to form a continuous three-dimensional porous network. The PVA 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 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 method of making a coatable composition includes: a) providing a initial composition comprising silica nanoparticles dispersed in an aqueous liquid medium, wherein the silica nanoparticles have a particle size distribution with an average particle size of less than or equal to 20 nanometers, and wherein the silica sol has a pH greater than 6; b) acidifying the initial composition to a pH of less than or equal to 4 using inorganic acid to provide an acidified composition; and c) dissolving at least one metal compound in the acidified composition to provide a coatable composition. Coatable compositions, wear-resistant compositions, preparable by the method are also disclosed. Wear-resistant articles including the wear-resistant compositions are also disclosed