A method of making a silver-silicalite coating on a surface of a stainless-steel substrate is provided. The method includes mixing metakaolin with an aqueous solution of NaOH to form a first mixture. The method further includes mixing silica gel and silver nitrate with the first mixture to form a second mixture. Furthermore, the method includes mixing Zeolites Socony Mobil-5 (ZSM-5) with the second mixture to form a third mixture. The method further includes hydrothermally treating the stainless-steel substrate with the third mixture to form the silver-silicalite coating on the surface of the stainless-steel substrate. The hydrothermal treatment is carried out in the absence of an organic template. The stainless-steel substrate coated with the silver-silicalite coating, prepared by the method of the present disclosure, has lower corrosion in comparison to the same stainless-steel substrate without the silver-silicalite coating.

A method of reducing relative radar permittivity of a coating composition is provided involving combining the coating composition with a silica to provide a radar-transmissive coating composition, wherein the silica is used in an amount sufficient to increase an amount of silica compared to silica in the coating composition by an amount of from 0.3 to 2.0 wt %, relative to total radar-transmissive coating composition, along with a radar transmissivity improving composition containing silica, and a method of preparing a radar-transmissive coating composition using the radar transmissivity improving composition.

An ink comprises (i) a carrier; (ii) graphene and/or graphene oxide particles dispersed in the carrier; and (iii) a viral active and/or anti-microbial component adhered to the graphene and/or graphene oxide particles.

A method is disclosed of three-dimensional (3D) free-form printing for coating free-form objects, the method including: arranging a free-form object in a Langmuir-Blodgett (LB) trough filed with a liquid, the LB trough designed based on a shape of the free-form object; arranging an LB film comprising a plurality of colloidal nanospheres on a surface of the liquid within the LB trough; and draining the liquid from the LB trough to form a self-assemble film of the colloidal nanoparticles on a surface of the free-form object.

A composite negative electrode sheet, a preparation method thereof, and a lithium ion battery using the same are provided. The composite negative electrode sheet includes a current collector, an active coating and an insulation coating that are disposed in sequence. The insulation coating includes a polymer, an inorganic filler, and a fast ion conductor, the active coating includes a binder and an active material, and a solubility parameter difference between the polymer and the binder is expressed as || that is greater than 0.5 (J/cm.sup.3).sup.1/2.

Embodiments provide a hard coating composition, a window produced from the hard coating composition, a method of manufacturing the window, and an electronic device including the window. The hard coating composition includes a solvent and a hard coating solid matter, wherein the hard coating solid matter includes a silsesquioxane compound, and a photo-polymerization initiator. The silsesquioxane compound is represented by Formula 1, which is explained in the specification.

A hard coating film containing a polymer nanoparticle (A) and a matrix component (B), wherein a Martens hardness HM.sub.A of the polymer nanoparticle (A) and a Martens hardness HM.sub.B of the matrix component (B) satisfy a relationship of HM.sub.B/HM.sub.A>1, and a Martens hardness HM of the hard coating film is 100 N/mm.sup.2 or more.

A hydrophobic bioplastic film and a method of manufacturing the hydrophobic bioplastic film for multiple-use are provided. The hydrophobic bioplastic film provides unique food preservation as an environment-friendly alternative to other plastics. The hydrophobic bioplastic film includes a chitosan-based bioplastic film that is coated with a plurality of hydrophobic nanoparticles.

The present invention provides an anti-reflective black paint composition having a favorable anti-reflective property, particularly in the infrared region used in LiDAR devices and the like, and having excellent adhesion to a housing of the above-mentioned devices mainly composed of aluminum. Provided is an anti-reflective black paint composition containing: a solvent; an epoxy resin; a cationic thermal reaction initiator; a black pigment; and a silica filler, wherein the silica filler includes an air layer therein, and when made into a cured dry paint coat, a reflectance for light having a wavelength of 1,500 nm is 2.5% or less in total light reflectance measurement at an angle of incidence of 8.

Provided is a coated article comprising a resinous base, a primer layer disposed on the resinous base, a hardcoat layer disposed on the primer layer, and an optically modified layer formed on a surface-layer portion of the hardcoat layer, wherein the primer layer is a cured coating film formed from a primer composition comprising (A) a vinyl-based (co)polymer and (B) inorganic particles having a given median diameter, the vinyl-based (co)polymer (A) including (A-1) a vinyl-based (co)polymer having an alkoxysilyl group and the primer layer having a thickness of 1-20 m, and the hardcoat layer is a cured coating film formed from a silicone composition comprising (a) a silicone resin, (b) colloidal silica, and (c) an ultraviolet absorber, the hardcoat layer having a thickness of 1-15 m.