5results about How to "Enhanced infrared absorption" patented technology

The invention discloses a multilayer integral photo-thermal catalyst as well as a preparation method and application thereof. The catalyst comprises a photo-thermal conversion layer, a heat preservation layer and a photo-thermal catalytic layer from inside to outside, the photo-thermal conversion layer is made of foamed nickel, the heat preservation layer is made of magnesium oxide, and the photo-thermal catalytic layer is made of cerium-zirconium solid solution containing a promoter; the photo-thermal conversion layer absorbs low-energy photons and effectively converts solar energy into heat energy; the heat preservation layer reduces dissipation of heat energy and provides active sites for reactant molecules; the photo-thermal catalytic layer absorbs high-energy photons to carry out photocatalytic CO2 reduction reaction, is used in a light-gathering photo-thermal system, can utilize solar energy in a gradient manner, and shows excellent light-gathering photo-thermal coupling catalytic CO2 reduction performance.

The invention discloses a hydrotalcite modified synthetic fiber with an infrared thermal insulation function, and belongs to the technical field of hydrotalcite synthetic fibers. According to the heat dissipation infrared wavelength, the composition and the structure of hydrotalcite are regulated and controlled, and a functional object with selective infrared absorption performance in the heat dissipation wavelength range is introduced, so that the infrared absorption performance of the material is remarkably improved, a novel intercalation structure infrared absorption material is developed, and the thermal insulation performance is greatly improved in the wavelength range of 7-14 microns; and a new thought is provided for comprehensive utilization of hydrotalcite.

The invention discloses a water-retention soil-moisture-conservation full-bio-based full-degradable agricultural film capable of enhancing absorption of infrared light waves and a preparation method thereof, and the preparation method comprises the following steps: dispersing layered silicate minerals, a surfactant and an infrared absorption enhancing agent in a solvent, and carrying out shearing and stripping to obtain active nanosheets; blending and granulating the polylactic acid, the bio-based filler, the active nanosheet and the functional additive to obtain a master batch; carrying out melt blending on the master batch and degradable polyester to form a degradable film, carrying out in-situ two-way stretching on the degradable film, and synchronously carrying out surface oxygen plasma treatment to obtain the bio-based full-degradable agricultural film. The active nanosheets are combined with the full-biodegradable agricultural film, infrared light wave absorption is effectively enhanced, the soil temperature can be increased, photosynthesis can be improved, plant diseases and insect pests can be relieved, the hydrophilicity of the agricultural film is improved after the active nanosheets are blended and oxygen plasma treatment is conducted, meanwhile, the active nanosheets block water vapor from permeating, and the agricultural film has the advantages of being environmentally friendly and free of pollution. Therefore, the water vapor transmission rate is reduced.

The application is based on electrochromic material technology, and particularly relates to an electrochromic visible-infrared response super surface film and a preparation method thereof. The preparation method comprises the following steps: step-by-step magnetron sputtering, depositing a conductive layer, tantalum pentoxide and tungsten oxide film on a substrate in sequence to form a device bottom electrode, a dielectric layer and an electrochromic layer; based on a mask, the film is subjected to a gluing-photolithography process, the electrochromic layer is etched by an argon ion beam to realize super surface pattern preparation; and the film is subjected to an annealing process in an air atmosphere to crystallize the tungsten oxide layer. The application has good visible-infrared compatible response performance, and simultaneously realizes visible color change and high variable emissivity in an infrared wave band (2.5-15 mu m).

The application discloses a transparent heat-insulating energy-saving window film master batch and a preparation method and window film thereof. The transparent heat-insulating energy-saving window film master batch comprises nanometer fluorinated tungsten bronze powder, polydimethylsiloxane, a dispersing agent and a polymer carrier. The nanometer fluorinated tungsten bronze powder is a core-shell structure composed of nanometer tungsten bronze particles externally grafted with fluorine-containing silane. The molecular structure of the nanometer tungsten bronze is M x WO3, 0.01<=x<=0.30, the mass ratio of the fluorine-containing silane and the nanometer tungsten bronze powder is 1:201:15. The fluorination modification of the surface of the nanometer tungsten bronze can improve the agglomeration of the nanometer tungsten bronze, ensure that the particle size of the modified powder is less than or equal to 100 nm in the plastic product, improve the infrared blocking rate and the visible light transmittance, improve the 8-13 mu infrared emissivity, and make the nanometer tungsten bronze have the effect of radiating heat. Meanwhile, by controlling the mass ratio of the fluorine-containing silane and the nanometer tungsten bronze, the compatibility of the powder in the polymer carrier can be improved, and the powder has high 8-13 mu infrared emissivity.