8 results about "Solar absorptance" patented technology

To provide an exterior laminate that can be used as an exterior component and is capable of sufficiently suppressing heat accumulation due to radiant heat such as sunlight. [Solution] An exterior laminate 10 is disclosed, having, in order from the surface side, a) a transparent film layer 1 containing an acrylic resin, c) a printed layer 2, and b) a colored film layer 3 containing a polyvinyl chloride resin, wherein the printed layer 2 of c) does not contain carbon black, the solar transmittance of the printed layer 2 of c) is 70% or more, and the solar absorptance is 20% or less. Preferably, the printed layer 2 of c) contains a perylene-based colorant and / or a phthalocyanine-based colorant.

A thermal insulation material for a garment is provided that includes a solar energy transmissive shell fabric, a solar energy transmissive insulation layer, and a solar energy absorbing liner fabric. The solar energy absorbing liner fabric includes a plurality of thermal insulation elements coupled to the liner fabric, such as a weighted average thermal emittance of less than 0.8 (or 80%). The thermal insulation elements include a low thermal emittance layer and a high solar energy absorptivity layer.

The invention relates to a high-entropy two-dimensional transition metal MXene broadband light-absorbing material which is composed of an M-layer element, an A-layer element and graphite powder, an A-layer Al element is etched through a LiF-HCl mixed solution with the mass concentration of 40% to form a two-dimensional layered structure, and the chemical general formula of the material is M3C2; wherein the elements of the M layer are any five metal elements of Ti, Zr, Nb, Mo, Hf and W, and the metal atoms are in an equal molar ratio; and the element of the A layer is Al. Meanwhile, the invention also provides a preparation method of the material. The preparation method is easy, high in repeatability and high in production efficiency and can be used for industrial large-scale production, the solar energy absorption rate of the prepared broadband light absorption material within the waveband range of 0.3-2.5 microns is 0.891-0.910, and the broadband light absorption material can be widely applied to solar photo-thermal conversion materials.

A heat-management material that includes a base fabric having an externally facing surface and an internally facing surface; and a plurality of multilayered multifunctional heat-management elements coupled to the externally facing surface of the base material wherein the heat-management material has weighted average thermal emittance of less than 0.8 (or 80%). The multilayered multifunctional heat-management elements include a low thermal emittance layer and a high solar absorptance layer.

The invention relates to the technical field of intelligent thermal control, in particular to a flexible intelligent thermal control device and a preparation method and a regulation and control method thereof. The device comprises a transparent upper substrate, a top electrode structure, an electrolyte layer, a bottom electrode layer and a transparent lower substrate which are sequentially stacked, the top electrode structure is a multi-layer composite structure comprising a conductive layer, a deposition catalyst layer and a surface structure layer; and the electrolyte layer contains metal salt capable of generating reversible electrodeposition reaction. According to the invention, a metal reversible electro-deposition mechanism is combined with a unique multi-layer top electrode structure, so that independent, collaborative and dynamic regulation and control of visible light and infrared dual wavebands are realized; the problems that an existing intelligent thermal control technology is single in function, or regulation and control of the solar absorptivity and the infrared emissivity are seriously coupled, and the dynamic thermal environment is difficult to independently optimize and adapt are solved.

The present application relates to a kind of high-entropy two-dimensional transition metal MXene wide-band light-absorbing material, the material is made of M layer element, A layer element and graphite powder, and two-dimensional layered structure is formed by etching A layer Al element with 40% mass concentration LiF-HCl mixed solution, and its chemical general formula is M3C2;Wherein: M layer element is any five kinds of metal elements in Ti, Zr, Nb, Mo, Hf and W, and metal atom is equimolar ratio;A layer element is Al.Meanwhile, the present application also provides the preparation method of the material.The preparation method of the present application is easy, strong repeatability, high production efficiency, can be used for industrial mass production, and the prepared wide-band light-absorbing material has solar energy absorption rate of 0.891~0.910 in 0.3~2.5 μm wave band range, and can be widely applied to solar light-heat conversion material.

A carbonized manure photothermal evaporator derived from naturally abundant farm waste has high solar absorptance, effective water transportation, and rapid salt dissipation. It achieves high evaporation under 1-sun irradiance and is recyclable, durable, and cost-effective for use in energy-efficient solar-driven interfacial desalination.

A thermal control coating is disclosed and described herein. The thermal control coating is provided by a two-part, addition-cure silicone composition. The composition includes a curable siloxane and titanium dioxide. The composition is fast-curing and, when cured, exhibits low solar absorptance, high solar reflectance, and / or high infrared emissivity. Additionally, the composition, when cured, exhibits good flexibility and can be applied to a surface without the aid of a primer.