115results about How to "High infrared reflectivity" patented technology

A composition for a Coating System (paint) which forms an insulating material being designed to both reflect infrared radiation and have reduced thermal conductivity. The coating system may be either a single Thermal Coating or may be a Thermal Coating used in combination with a Thermal Primer. The Thermal Coating is formulated using conventional techniques and a resin used in paint manufacture, but utilizes primary pigments and extender mineral pigments which preferentially reflect in the infra red area of the solar spectrum. A method of characterizing particulate materials for their infra red reflectivity is described, which provides a means for preferential selection of particulate additives based on their relative visible light and infrared reflectivity. Additionally the incorporation of hollow micro-spheres is desired to reduce thermal conductivity. The Thermal Primer is designed to provide adhesion between the Thermal Coating and the substrate on which it is applied and uses conventional techniques to achieve those properties. However it has been found advantageous to incorporate hollow micro-spheres with low thermal conductivity, such as glass, ceramic or polymeric micro-spheres and/or an extender pigment with low thermal conductivity such as calcined clay to further reduce heat flow through the Coating System.

A multilayered nano transparent conductive film is of alternate structures of dielectric layer and metal layer, and the metal layer is between two dielectric layers which are symmetric in structure or non-symmetric in structure. Its preparing method is to first work out a computer analog program for photoelectric performance of multilayer film according to the characteristic metrix calculation formula of multilayer, the theory of plasma resonance and the electronic transport in metal continuous film, to optimize the design of D/M/D multilayer film structure including selecting and matching ofmaterial quality, film thickness, reflecting rate and conductive rate, predicting of several kinds for D/M/D multilayer film structure, and then to use vacuum vaporation coating method to make D/M/D multilayer film by using accurate film thickness detection system to record film thickness

The invention discloses a black infrared reflection type photovoltaic EVA (Ethylene Vinyl Acetate) adhesive film. The photovoltaic EVA adhesive film comprises EVA resin as well as the following raw materials counted by the mass of the EVA resin: 0.1-2% of a cross-linking agent, 0.1-2% of an assistant crosslinker and 0.05-0.5% of an infrared reflection pigment. According to the photovoltaic EVA adhesive film, the infrared reflection pigment is added in the EVA resin, is black and has high infrared reflectivity, so that the prepared EVA adhesive film has good infrared reflection performance; by packaging a photovoltaic assembly by virtue of the photovoltaic EVA adhesive film, the power loss and temperature rise of the packaging assembly can be effectively reduced.

The invention discloses low emissivity glass. The low emissivity glass contains a glass substrate, a first dielectric layer, a first barrier layer, a transition layer, a metal layer and a second barrier layer in turn from bottom to top, wherein preferably, a second dielectric layer can be plated on the second barrier layer; the transition layer is adopted to promote the growth of the metal layer and ensure that the metal layer can grow to form a continuous structure, thus the glass can have high infrared reflectivity and visible light transmittance; and the barrier layers can fully protect the metal layer to ensure that the high infrared reflectivity of the metal layer can be utilized. The low emissivity glass has low production cost and very good industrial application prospect; and the energy can be effectively saved.

A diaphragm type infra-red radar beam synthesizer relates to an infra-red radar beam synthesizer. The synthesizer of the invention solves the problems that the existing beam synthesizer produces comparatively large IPD (Insertion Phase Delay) to radar wave, thus leading to an impact on the testing precision and causing the existing beam synthesizer to be incapable of moving with a simulator. The beam synthesizer of the invention consists of a fixing adjustment mechanism, a beam synthesizing film (2); the beam synthesizing film (2) is fixedly arranged on the fixing adjustment mechanism. The synthesizer of the invention produces a small amount of IPD to radar wave and can move with an infrared simulator with high radar wave transmittance rate and infrared reflectivity rate.

The invention provides a composite energy-saving coating material, which is made of multiple microporous silicate mineral raw materials after surface hydrophobic treatment and reflective fillers. The composite energy-saving coating material enhances the weather resistance and water resistance of a coating, avoids the excessive change of a coefficient of heat conductivity, combines two favorable performances of reflection and heat insulation, integrates two roles of the reflection and obstruction at a suit, has high sunlight reflectivity and good heat insulating effect, avoids repeated multilayer painting operation of an insulation surface and the like, can be formed at a time through painting, and has the advantages of stable performance, uniform coating, low cost, environmental-friendliness and the like. A preparation method is simple in technology and low in cost, saves energy and facilitates industrial popularization and application.

The invention relates to a multicolor infrared low-emissivity environmental protection coating. The coating comprises a component A and a component B, and when in use, the component A and the component B are uniformly mixed according to the mass ratio of 1:10. The component A is aliphatic polyisocyanate; the component B comprises the following components in percent by mass: 20 to 30 percent of fluorocarbon resin, 35 to 50 percent of special pigment, 0 to 5 percent of filler, 1 to 5 percent of a dispersant, 0.1 to 1 percent of a flatting agent; 3 to 8 percent of a directing agent, 0.01 to 0.3 percent of a drier, and 15 to 25 percent of a mixed solvent, wherein the special pigment comprises the following pigments: 0 to 10 percent of titanium dioxide rutile, 0 to 5 percent of 1, 4 diketopyrrolopyrrole series organic red pigment, 0 to 25 percent of chromium oxide green, 0 to 8 percent of titanium-nickel yellow pigment, 0 to 5 percent of black pigment, and 50 to 95 percent of coated color metallic pigment. The average emissivity of the thermal infrared band of the coating is 0.40 to 0.65, and the heavy metal content meets the requirement.

The invention discloses deep-color super-hydrophobic infrared-reflection thermal insulation coating. The deep-color super-hydrophobic infrared-reflection thermal insulation coating is characterized inthat a method of the deep-color super-hydrophobic infrared-reflection thermal insulation coating comprises the following steps: uniformly mixing a water solution of ethanol, nano silicon dioxide particles, hybridized siloxane and fluorine-containing siloxane; regulating the pH (Potential of Hydrogen) value to 3 to 5 by utilizing dilute hydrochloric acid and stirring and reacting for 1 to 5h; adding waterborne epoxy resin and a waterborne curing agent into a reaction solution; after uniformly stirring, adding an infrared-reflection pigment and uniformly mixing to obtain the deep-color super-hydrophobic infrared-reflection thermal insulation coating. A deep-color super-hydrophobic infrared-reflection thermal insulation coating layer prepared by the method has high infrared reflectivity on solar radiation; the surface temperature of the coating layer can be greatly reduced; when the deep-color super-hydrophobic infrared-reflection thermal insulation coating is used on an outer wall or aroof, the indoor temperature can be effectively reduced, so that the building energy saving effect is realized. Meanwhile, the surface is super-hydrophobic so that the thermal insulation coating layerhas a good rainwater self-cleaning effect, and the service life and the appearance beauty of the coating layer are greatly improved; the coating is aqueous and is very environmentally friendly to construction and environment.

The invention discloses a method for preparing fiber-loaded rutile type TiO2 composite SiO2 aerogel. The method comprises the following steps: performing hydroxylation treatment on fiber by using a piranha solution; soaking the fiber after hydroxylation treatment into a TiO2 solution, loading the surface of fiber after hydroxylation treatment with TiO2 sol by using a soaking-lifting method, and performing high-temperature so as to obtain fiber of which the surface is loaded with rutile TiO2; soaking the fiber of which the surface is loaded with rutile TiO2 into SiO2 sol so as to obtain SiO2 composite sol; performing aging, decontamination, solvent replacement, surface modification and normal-pressure drying on the SiO2 composite sol, so as to obtain the fiber-loaded rutile type TiO2 composite SiO2 aerogel. By adopting the method, not only is the problem that TiO2 is not uniformly dispersed in the SiO2 aerogel solved, but also the mechanical properties and the thermal-insulating heat-preservation properties of the SiO2 aerogel can be improved; by adopting the SiO2 aerogel composite material prepared by using the method, infrared radiation heat conduction can be effectively inhibited, and a relatively low heat conduction coefficient can be achieved.

The invention provides a novel silver-introduced hafnium-nitride-membrane high-infrared-reflection durable material and relates to the field of infrared reflection membrane materials. The material is a HfN-Agx membrane formed by HfN and Ag, the HfN-Agx membrane has a solid solution structure comprising HfN and Ag, and the content of Ag is 0.8-3.8at.%. A preparation method of the durable material includes: selecting a silicon wafer or a glass substrate to use as the substrate, placing a Hf target and a Ag target into a magnetic control sputtering chamber, vacuumizing, setting magnetic control sputtering parameters, feeding N2 and Ar gas, and depositing the HfN-Agx membrane onto the substrate. The durable material is good in infrared reflection performance and excellent in durability, can be hopefully used as the high-infrared-reflection durable membrane in harsh environments with high-speed solid-liquid particle impact, high temperature and corrosive liquid and gas, and can also be applied to the surface of an optical reflection device.

The invention discloses a method for preparing heat-insulation pigment painting paste with high infrared reflectivity for buildings, and belongs to the field of chemical technologies for painting. The method includes compounding infrared reflection inorganic metal pigment color paste and aluminum paste with each other to obtain the heat-insulation pigment painting paste for the buildings. The heat-insulation pigment painting paste for the buildings can be added in emulsion paint for external walls, the emulsion paint can be coated on stone plates, and the total solar reflectivity and the infrared reflectivity of the stone plates can be obviously improved after the stone plates are naturally dried in the air. Compared with the prior art, the method for preparing the heat-insulation pigment painting paste for the buildings has the advantages that the heat-insulation pigment painting paste is high in infrared reflectivity, painting has diversified colors and is excellent in moisture retention and heat stability.

The invention relates to a coating for a furnace wall on the internal side of the furnace body of a polycrystalline silicon reduction furnace (a lining coating for short) and a production method of the coating, in particular to a lining anticorrosive infrared reflection coating of an improved-Siemens-process polycrystalline silicon reduction furnace. The coating is made of a metal-ceramic material. The coating is directly coated on the furnace wall on the internal side of the furnace body of the improved-Siemens-process polycrystalline silicon reduction furnace. The adopted coating method is a physical vapor deposition method or a chemical vapor deposition method. The thickness of the lining coating of the polycrystalline silicon reduction furnace is 1-10 micrometers, the production cost is low and the adhesive force of the coating on the furnace wall is strong. The coating can resist high temperature, strong acid and alkali corrosion and mechanical impact and scraping, the infrared reflection efficiency is high, the service life is long and the loss of heat in the improved-Siemens-process polycrystalline silicon reduction furnace because of heat transfer towards the outside of the furnace can be effectively reduced. Since the coating replaces a pure-gold infrared reflection coating, the expense of the coating material is greatly decreased and the cost of producing polycrystalline silicon products by adopting an improved Siemens process can be greatly decreased.

The invention discloses a medium-high temperature solar selective absorption composite coating and a preparation method thereof. The composite coating comprises four layers of structures from inside to outside, namely the substrate layer, the infrared reflection layer, the selective absorption layer and the antireflection layer; and the substrate layer is a stainless steel substrate, the infrared reflection layer is a metal thin film, the selective absorption layer is a CuCoMnOx spinel thin film, and the antireflection layer is a SiO2 or TiO2 thin film. The medium-high temperature solar selective absorption composite coating has a high absorption rate at the visible-near infrared wave band and has low emissivity at the medium-far infrared wave band, has good high-temperature resistance and corrosion resistance and can work stably at a medium-high temperature and meanwhile is simple in preparation process and low in cost.

The invention discloses a dark-color reflective and heat insulation varnish and a preparation method thereof, relating to the field of coatings. The dark-color reflective and heat insulation varnish comprises the following components in parts by weight: 320-380 parts of an elastic emulsion, 40-80 parts of a fluorocarbon emulsion, 220-270 parts of filler, 4-6 parts of a dispersing agent, 3-5 parts of a defoaming agent, 5-10 parts of a film-forming additive, 3-5 parts of a flatting agent, 5-8 parts of a thickening agent, 2 parts of a mildew-proof and alga-proof agent, 2 parts of a bactericide, 3-5 parts of a wetting agent and 200-250 parts of deionized water. The varnish belongs to an environment-friendly coating, not only is high in reflection coefficient and radiation coefficient, free of grinding and good in decoration property, but also does not contain APEO and cannot generate hazards to the environment and human health.

The invention provides interior wall heat-insulating paint which comprises the following components in parts by weight: 5-45 parts of water, 3-25 parts of assistant, 3-55 parts of inorganic filler, 5-55 parts of paint resin and 1-30 parts of metal-coated hollow microsphere. The interior wall heat-insulating material provided by the invention comprises the metal-coated hollow microsphere, so that the metal-coated hollow microsphere ensures that the infrared reflectivity is improved, the emissivity is reduced, and certain heat reflection effect is achieved; and the metal-coated hollow microsphere is in a hollow structure and is low in heat conductivity coefficient, so that no convected air exists in the prepared interior wall heat-insulating paint, the heat conductivity coefficient of the paint is reduced, and the middle and far infrared heat ray blocking capability of a heat-insulating coating is greatly enhanced, thereby improving the indoor heat-insulating effect. Experimental results indicate that the interior wall heat-insulating paint provided by the invention can increase the indoor temperature by 2-3 DEG C.

The invention relates to an infrared shielding type glass heat-insulating coating which is prepared from the following raw materials in percentage by weight: 40 to 50 percent of organic silicon modified acrylic polymer emulsion, 17 to 25 percent of nanometer semiconductor material, 0.1 to 1.5 percent of molecular bridge and 0.5 to 0.7 percent of dispersant. The coating enhances the transmission rate of a coating layer for visible light, so that the light transmission rate of the coating layer reaches 90 percent. The coating layer achieves high infrared reflectivity and shielding rate: the reflectivity thereof for infrared rays reaches 85 percent, and the coating layer with the high infrared reflectivity has high heat-insulating effect; coated glass can not be penetrated by an infrared night vision instrument due to the high infrared shielding rate of the coating layer, and indoor privacy is protected. In addition, the coating of the invention has lower heat transfer coefficient, and the heat transfer quantity thereof is lower than 29 percent of solar energy.