9results about How to "Low emissivity" patented technology

This application provides a delivery pump, a fluid delivery device, and a nuclide synthesis system, belonging to the field of fluid delivery technology. It includes: a pump body, a liquid guide pipe, a diverter pipe, a regulating mechanism, and a flushing mechanism. The liquid guide pipe is connected to the pump body and is connected to a three-way valve. The diverter pipe includes a first pipe body, a control valve, and a second pipe body. The first pipe body is connected to the inlet of the control valve, and the outlet of the control valve is connected to the second pipe body. A filter screen is installed inside the first pipe body. The first pipe body has a first branch pipe and a second branch pipe. The first branch pipe is located on the side of the filter screen closer to the control valve, and the second branch pipe is located on the side of the filter screen farther from the control valve. There are two diverter pipes, each connected to one outlet of the three-way valve via the inlet end of the first pipe body. This effectively reduces the probability of particulate impurities entering the delivered liquid and maintains stable particulate impurity filtration for a long time without the need for manual cleaning.

The invention discloses a non-Van der Waals artificial solid material as well as a preparation method, a thin film, a dispersion liquid and application of the non-Van der Waals artificial solid material. According to the preparation method, effective stabilization and structural transformation of a conventional MXene material are realized through a two-step method of first zinc vapor electron injection stabilization and then metal vapor bonding transformation, irreversible transformation of MXene to a rock salt structure at a high temperature can be prevented, the MXene can react with various active metal vapor, and the performance of the MXene material is improved. The invention provides a general way for controllably synthesizing a series of ultrathin non-Van der Waals artificial solid materials, solves the problem that the conventional MXene is unstable at high temperature, can be used for preparing a series of ultrathin layered materials including Al-Ti3C2 and large-area flexible films thereof, and the obtained material has high conductivity, mechanical flexibility and high-temperature oxidation resistance, and has a wide application prospect. The method has a wide application prospect in the fields of flexible electronics, high-temperature electromagnetic shielding and infrared stealth.

The invention relates to heat-retaining rolling equipment. The heat-retaining rolling equipment according to an embodiment of the present invention comprises a heat-retaining cover which covers the outside of a material to be transferred along a transfer line to retain heat, wherein the heat-retaining cover comprises: an upper cover part which covers the upper side of the material; a first and a second side cover part which cover the lateral sides of the material and are rotatably connected to both sides of the upper cover part, respectively; and at least one driving part for rotating the first or the second side cover part to control unfolding of the first or the second side cover part.

The utility model discloses a glass film with low hemispherical radiance and glass, the film comprises a release film layer (00), a pressure-sensitive adhesive layer (10), a resin film layer (20) and a magnetic control metal layer, the magnetic control metal layer is located on the upper surface of the resin film layer (20), and the magnetic control metal layer is of a multi-layer structure and comprises 1-4 metal reflecting layers (30) and an outermost low-radiation anti-oxidation layer (40). The low-radiation anti-oxidation layer (40) can protect the surface of the glass film from being scratched in the transportation and construction process, meanwhile, the low-radiation anti-oxidation layer (40) has the low radiation rate, and when the indoor temperature is high, radiation is mainly transmitted from the interior of a room, and the low-radiation anti-oxidation layer (40) can reflect heat back to the interior of the room.

The application belongs to the technical field of infrared camouflage materials, and particularly relates to a kind of imitated vegetation PAAS / PVA composite camouflage material based on transpiration and a preparation method thereof. The camouflage material is composed of a high-hygroscopic composite base material, a colorant, a metal pigment and a "bridging" material. The high-hygroscopic composite base material is composed of a hygroscopic inorganic substance and a hygroscopic polyacrylic acid sodium (PAAS) and polyvinyl alcohol (PVA) composite. The "bridging" material is a medium that plays a bridging role between colorants, between a colorant and a metal pigment, and between metal pigments. The composite camouflage material has low emissivity in the mid-infrared band, is highly regenerative and reversible, can be recycled and reused, has low preparation cost, high practicality and other characteristics, and can be used in the field of infrared camouflage for reducing the detectability of weapons and equipment.

The utility model discloses yellow-green double-tone light blue double-silver low-emissivity coated glass which comprises a glass substrate, a base dielectric layer, a base second dielectric layer, a first barrier layer, a first functional silver layer, a first dielectric protective layer, a middle dielectric layer, a middle third dielectric layer, a second functional silver layer, a second barrier layer, an upper dielectric layer, an upper second dielectric layer and an outer protective layer are sequentially arranged on one side of the glass substrate from inside to outside; the color cast of the glass surface of the product is light blue, and the film surface is slightly yellow-green, so that a dark-tone glass product is brought to the market, and a building main body is relatively stable and elegant; and the LED lamp has low radiance, is very practical in performance and appearance, and can be popularized to civil buildings.

The invention relates to an infrared stealth material based on thermal insulation and low emissivity collaborative strategy regulation and a preparation method thereof. The infrared stealth material based on heat insulation and low emissivity synergistic strategy regulation and control comprises a polyimide PI aerogel fiber braided fabric, a styrene-acrylic emulsion SA or polyvinyl alcohol transition layer attached to the surface of the polyimide PI aerogel fiber braided fabric, and a Ti < 3 > C < 2 > T < x > MXene / tannic acid TM composite low infrared emission layer attached to the surface of the transition layer.

The application discloses a kind of low infrared emission composite coating and its preparation method and application.The composite coating includes functional filler and matrix, functional filler is the inorganic particle of refractive index not less than 2.0 in 8-14 μm wave band, and the inorganic material of matrix is the infrared transmittance not less than 80% and the refractive index lower than functional filler in 8-14 μm wave band.The optical property difference of filler and matrix is used to construct scattering environment in 8-14 μm wave band, and the infrared emissivity of coating surface is reduced.The experimental results show that, with ZnSe as representative filler, KBr as representative matrix, the emissivity of ZnSe-KBr (20vol%) coating can be as low as 0.430, which is significantly better than that of organic matrix coating (0.668).Filler can be prepared into spherical or flaky morphology by hydrothermal method, and the optical properties can be further optimized by annealing.The coating is formed by hot pressing.The disclosed technical solution is not limited to a specific material combination, and any filler-matrix combination that meets the optical conditions can achieve low emission effect.

This invention discloses a mid-to-far-infrared narrowband light source for MEMS, comprising a substrate, a suspension support layer, a heating resistor layer, and a radiation functional layer. The substrate is a silicon substrate. The suspension support layer is fixed to the substrate by anchor points. The heating resistor layer is disposed on the suspension support layer, and the radiation functional layer is disposed above the heating resistor layer. The suspension support layer and the heating resistor layer have Y-shaped grooves forming a Y-beam suspension structure. The Y-beam suspension structure is connected to the substrate by anchor points to form thermal isolation. The surface of the radiation functional layer has a periodically arranged array of micro / nano structures. The period and size of the micro / nano structure array are on the same order of magnitude as the target infrared wavelength, forming an artificial interface with specific equivalent refractive index and resonance characteristics to achieve narrowband spectral output. This invention can reduce heat conduction from the radiation region to the substrate, reduce heat conduction loss, reduce heat leakage, improve thermal isolation performance, and reduce heat capacity, thereby enabling the beam to heat up and cool down rapidly.