The present disclosure relates to a method of preparing a monomolecular nano-thin film, including: coating, on a substrate, a dispersion solution containing a compound represented by the following Chemical Formula 1; and performing annealing to the coated substrate: ##STR00001## in the above Chemical Formula 1, X and Y are each independently nitrogen, carbon, sulfur, or oxygen, R.sub.1 and R.sub.2 are each independently hydrogen, oxygen, a hydroxy group (—OH), or a linear or branched C.sub.1 to C.sub.10 alkyl group.

The hydrophobic and corrosion resistive film of cross-linked poly(hexafluoroisopropyl methacrylate) was prepared by photopolymerization. The starting materials were a monomer of 1,1,1,3,3,3-hexafluoroisopropyl methacrylate, a photoinitiator of hydroxycyclohexyl phenyl ketone, and a cross-linker of poly(ethyleneglycol diacrylate). Photopolymerization was used to start polymerization and to cure the polymer film on an aluminum surface. Drop-casting was used to deposit the fluoropolymer onto an aluminum substrate (AA 3003). The fluoropolymer film has high corrosion protection when measured by potentiodynamic polarization and open circuit potential techniques in an aqueous solution of 3.5% NaCl. Fourier-transform infrared spectroscopy was used to monitor the polymerization process. The dynamic contact angle technique was used to measure the hydrophobicity for the fluorinated polymer coating. Thermal stability of the fluorinated polymer was measured using thermogravimetric analysis. Treatment with strong acid followed by contact angle measurements before and after the treatment confirmed the chemical resistance for the coated aluminum.

A surface treatment agent used for treating a substrate which has a surface having two or more regions made of materials that are different from each other, the agent including a compound (H) represented by Formula (H-1). In the formula, R.sup.1 represents a linear or branched alkyl group having 1 to 30 carbon atoms, a linear or branched fluorinated alkyl group having 1 to 30 carbon atoms, an aromatic hydrocarbon group, or a cycloalkyl group having 3 to 12 carbon atoms, and R.sup.2 represents a hydrogen atom, a linear or branched alkyl group having 1 to 8 carbon atoms, or a cycloalkyl group having 3 to 12 carbon atoms)

##STR00001##

A method of producing a film-attached resin base may include supplying a surface treatment gas including at least fluorine gas to a resin base including reinforcing fibers so that embrittled regions are formed in a surface of the resin base and the reinforcing fiber present near the surface of the resin base is modified at least partially; removing at least the embrittled regions so that an uneven surface is formed on the resin base and the reinforcing fiber is at least partially exposed in the uneven surface; and forming a film onto the uneven surface of the resin base.

A selectively-absorbing material includes a silicone polymer and transition-metal oxide nanoparticles dispersed therein. Each of the transition-metal oxide nanoparticles includes manganese. A solar receiver includes (i) a metal substrate including an etched surface having a microroughness between 0.05 micrometers and two micrometers; (ii) a polymer matrix disposed on the etched surface; and (iii) transition-metal oxide nanoparticles dispersed within the polymer matrix. A method for producing transition-metal oxide nanoparticles includes recrystallizing a plurality of two-element nanoparticles at a temperature between 300 and 700° C. The plurality of two-element nanoparticles includes at least two of (i) copper oxide nanoparticles, (ii) manganese oxide nanoparticles, and (iii) iron oxide nanoparticles. A method for fabricating a selective-absorber includes etching a top surface of a metal substrate; depositing a polymer-matrix composite on the etched top surface; and interdiffusing the polymer-matrix composite and the metal substrate. The polymer-matrix composite includes transition-metal oxide nanoparticles dispersed therein.

A transparent wear-resistant film layer, a plastic substrate modification method, and a product are provided, the plastic substrate modification method includes the following steps: bombarding with at least one plastic substrate positioned in a chamber of a PECVD coating device with plasma to clean and activate the at least one plastic substrate, and forming a transparent wear-resistant film layer on the at least one surface of the activated plastic substrate by a plasma enhanced chemical vapor deposition using a siloxane monomer as a reaction raw material.

Disclosed is a method for treating a grained material. A nonlimiting example of the method includes the operations of providing a workpiece having grains, exasperating a surface of the workpiece to open the grains, applying at least one coat of a base paint to the exasperated surface, applying at least one layer of clear coat on the base paint, applying at least one of a glaze and a paint on the clear coat, and surface treating to reveal grains of the workpiece. Disclosed also are items of furniture and sheet materials treated by the aforementioned process.

Disclosed is a method for treating a grained material. A nonlimiting example of the method includes the operations of providing a workpiece having grains, exasperating a surface of the workpiece to open the grains, applying at least one coat of a base paint to the exasperated surface, applying at least one layer of clear coat on the base paint, applying at least one of a glaze and a paint on the clear coat, and surface treating to reveal grains of the workpiece. Disclosed also are items of furniture and sheet materials treated by the aforementioned process.

Disclosed is a method for treating a grained material. A nonlimiting example of the method includes the operations of providing a workpiece having grains, exasperating a surface of the workpiece to open the grains, applying at least one coat of a base paint to the exasperated surface, applying at least one layer of clear coat on the base paint, applying at least one of a glaze and a paint on the clear coat, and surface treating to reveal grains of the workpiece. Disclosed also are items of furniture and sheet materials treated by the aforementioned process.

The present disclosure relates to a method of preparing a monomolecular nano-thin film, including: coating, on a substrate, a dispersion solution containing a compound represented by the following Chemical Formula 1; and performing annealing to the coated substrate:

##STR00001## in the above Chemical Formula 1, X and Y are each independently nitrogen, carbon, sulfur, or oxygen, R.sub.1 and R.sub.2 are each independently hydrogen, oxygen, a hydroxy group (OH), or a linear or branched C.sub.1 to C.sub.10 alkyl group.