129results about How to "Strong heat insulation ability" patented technology

The invention relates to a preparation method of an aramid fiber nanofiber aerogel, in particular to a preparation method of the aerogel. The invention aims to solve the problems of poor mechanical strength and poor heat resistance of an existing aerogel. The preparation method comprises the steps of (1) extracting; (2) preparing a dark red aramid fiber nanofiber solution; (3) preparing an aramid fiber nanofiber hydrogel; (4) carrying out vacuum filtration and cleaning; (5) freeze drying to obtain the aramid fiber nanofiber aerogel. According to the aramid fiber nanofiber aerogel prepared through the preparation method provided by the invention, the temperature of primary thermal decomposition is 500 DEG C, so that the aramid fiber nanofiber aerogel can be used in a temperature interval ranging from 200 DEG C to 500 DEG C for a long time; the tensile strength of the aramid fiber nanofiber aerogel prepared through the preparation method provided by the invention reaches to 230 MPa. The invention discloses the preparation method of the aramid fiber nanofiber aerogel.

The invention discloses a solvent-type fluorocarbon heat insulation and isolation coating which uses hollow glass micro-beads, hollow ceramic micro-beads and the like as heat insulation and isolation materials and uses titanium pigment, aluminium powder (slurry) and the like as reflective materials. The heat conductivity coefficient of the coating is less than 0.055 W/m.K; the reflectivity of sunlight is more than or equal to 0.85; the reflectivity of a hemisphere is more than or equal to 0.85; the time for aging resistance is 2,500 hours; and the coating does not fade or pulverize. The solvent-type fluorocarbon heat insulation and isolation coating belongs to the field of building material, can be applied to the surfaces of outer wall, roof, cement, ceramic tile, glazed tile, decorative tile and other materials. The coating has the function of outer wall decoration, heat insulation, heat isolation and the like.

The invention specifically discloses an aluminum silicate fiber refractory felt with good heat insulation performance, belonging to the technical field of refractory materials. The aluminum silicate fiber refractory felt is prepared by dipping an aluminum silicate fiber felt in nanometer aerosil slurry, then drying the aluminum silicate fiber felt, separately connecting the two sides of the aluminum silicate fiber felt with refractory layers, then dipping the aluminum silicate fiber felt in the nanometer aerosil slurry again and carrying out drying, wherein the aluminum silicate fiber felt is prepared from modified aluminum silicate fibers through braiding; the modified aluminum silicate fibers are prepared from kaolin powder, alumina, titanium dioxide, a dispersant, nanometer aerosil, polyimide resin, a silane coupling agent, an aluminum phosphate binder and water; and the nanometer aerosil slurry is prepared from diatomite, activated clay, nanometer aerosil and water. The aluminum silicate fiber refractory felt of the invention can form multilayer heat-insulatiing protection, has good heat insulation performance, can meet the demands of equipment for heat preservation and fire resistance and prevents scalding of operators or damage to articles contacting with the felt caused by too high surface temperature of the refractory felt.

The invention discloses a thin fire-resisting glass and a method for the production thereof. The thin fire-resisting glass of the invention is glued by a flat glass and compounded by pouring fire-proof transparent glue, solidifying and sealing, the compositions of the fire-proof transparent glue (W%) are: gel forming agent of 5 to 15 percent, methylene-bisacrylamide of 10 to 20 percent, initiator of 0.1 to 2.0 percent, sodium chloride of 5 to 15 percent, magnesium chloride of 5 to 30 percent, aluminum phosphate of 5 to 25 percent, boric acid of 0 to 10 percent, ethanolamine of 5 to 25 percent and water of 30 to 50 percent. The fire-resisting glass of the invention is mainly used for fireproof and soundproof building partitioning facilities such as fire-resisting and soundproof doors and fire-resisting and soundproof walls and windows, and has good sound insulation, transmittance, waterproofing and weathering resistance performances, and can meet the requirements of high-grade building fireproof materials with rather high fireproof demand.

A waste gas purifying spray system includes a waste gas inlet, a cyclone separator and a waste gas outlet. A spray column includes three layers, wherein a filter screen is fixed onto each layer through an angle iron bracket. A plurality of ceramic hollow tubes are irregularly arranged on each filter screen. A plurality of water spray tubes are arranged uniformly from the bottom to the top on inner periphery of the spray column. A plurality of spray nozzles are arranged on the inner side of each spray tube. A first-stage sedimentation tank, a second-stage sedimentation tank, a third-stage sedimentation tank and a fourth-stage sedimentation tank are successively connected to the waste gas outlet through pipelines. The waste gas purifying spray system is simple in structure, is stable in operation and is strong in heat dissipation and insulation. Waste gas can fully make contact with water fog so that the dust removal efficiency can be increased. Meanwhile, the waste gas purifying spray system can remove toxic gases, can achieve toxic-free emission, can form water circulation and can save water resource, so that by means of popularization and application of the system timely, an excellent social and economical benefit can be achieved.

The invention relates to an environment-friendly plastic foamed sheet with antistatic and flame-retardant functions and a manufacturing technique thereof. The manufacturing technique comprises the following steps: preparing bamboo carbon powder, kaolin, plastic, antistatic agent, flame retardant and other chemical assistants, banburying, mixing, discharging from a guillotine to obtain a sheet semi-finished product, and foaming to form with a foaming machine. The plastic foamed sheet is prepared from the following raw materials in parts by mass: 5.5-6 parts of plastic, 1.0-1.5 parts of bamboo carbon powder, 1.5-3.5 parts of kaolin, 1.0-2.5 parts of antistatic agent, 1.5-3.5 parts of flame retardant and 0.5-1.0 part of chemical assistants. The manufacturing technique produces the plastic foamed sheet with high-standard antistatic and flame-retardant functions, overcomes the defects and shortcomings in the prior art, has important and profound significance for solving the problems above, and has very wide market potential.

The invention discloses a multi-functional building exterior wall environment-friendly nano-coating. The multi-functional building exterior wall environment-friendly nano-coating is prepared from the following components in parts by weight: 20-50 parts of water-based acrylic emulsion, 4-8 parts of butyl acrylate, 1-2 parts of nano TiO2, 1-1.5 parts of pearl mica powder, 0.5-1 part of hollow glass beads, 0.8-1.2 parts of sodium hexametaphosphate, 1.1-1.5 parts of ethoxylated alkylphenol sulfate, 0.5-1 part of propyltrimethoxysilane, 2-3 parts of pH regulator, 2-5 parts of other aids and 10-20 parts of deionized water. The invention further discloses a preparation method of the coating. The coating has the advantages of high coating performance, excellent weather resistance, excellent erosion resistance, high adhesion, non-toxicity and environmental friendliness; moreover, the preparation method is simple, is mild in process conditions, is easy to control, and is low in production cost.

The invention relates to an exposed frame glass curtain wall with a poly vinyl chloride (PVC) heat-insulation block. The exposed frame glass curtain wall comprises a stand column and hollow glass (3). The stand column comprises an aluminum section (1), an inner cover plate (4) of the aluminum section, an outer cover plate (5) of the aluminum section and a screw (6), wherein the inner cover plate (4) of the aluminum section is covered on the aluminum section (1); and the outer cover plate (5) of the aluminum section is covered outside the inner cover plate (4) of the aluminum section. The hollow glass (3) is embedded between the aluminum section (1) and the inner cover plate (4) of the aluminum section through a sealing joint strip (7); the PVC heat-insulation block (2) is embedded between the aluminum section (1) and the inner cover plate (4) of the aluminum section; the PVC block (2) is connected with the aluminum section (1) in a dovetailing mode, and the inner cover plate (4) of the aluminum section, the PVC heat-insulation block (2), and the aluminum section (1) are fixed by inserting the screw (6). The glass curtain wall has high heat-insulation capability and low cost.

The invention relates to the field of thermal insulation materials and provides a preparation method of polyimide aerogel. The method is characterized by comprising the following steps: step 1, preparing polyamide acid hydrogel; step 2, freezing the polyamide acid hydrogel at low temperature, and performing freeze drying and thermal imidization to obtain the polyimide aerogel. The prepared polyimide aerogel has low density, high strength and high flame retardant capacity, isotropic and anisotropic thermal insulation materials can be obtained, various application scenarios can be met, the preparation process is simple and easy to operate, shorter time is needed, cost is low, environmental protection is realized, toxic solvents are not used, and the potential of large-scale application is provided.

The invention relates to a monitoring system for an outdoor cabinet of an electric power system. The monitoring system comprises a background monitoring center and a front-end detecting device installed inside an electric power cabinet, wherein the electric power cabinet is further provided with a bracket therein, the ground resistor is disposed on the bracket, is fixed to the bracket via an insulated block, and is connected with a ground wire, and a current transformer is arranged on the ground wire and is connected with a controller, the controller is connected with an alarm device and a wireless device through a driving circuit, the ground resistor comprises a first ground resistor group and a second ground resistor group, the first ground resistor group is connected with a first ground wire, the second ground resistor group is connected with a second ground wire, and the current transformer is disposed on the first ground wire.

The invention discloses a preparation method of high-performance window film insulation medium. The preparation method includes: firstly, selecting blue WO3, ATO and ITO nano-powders according to corresponding conditions, using a planet wet ball-milling disperser and a scientific and reasonable combining-scattering comparison method, and optimally selecting factors such as selection proportion and solid content of different insulation media, selection on mill ball size, control on rotation speed and continuous dispersion time. Therefore, optimal transmittance of visible light, optimal insulation, optimal ultraviolet proofing and optimal performance of high-performance insulation medium are achieved. The high-performance window film insulation medium prepared by the preparation method is high in transparency, thermal insulation and ultraviolet proofing, has high insulation in the near-infrared area of 780nm-900nm, is widely applied to production of high-performance insulation glass and high-performance insulation window films, and has very important social and economic values.

The invention relates to a method for constructing a sunlight room roof. The method includes the following steps that first, main transverse beams and secondary transverse beams are arranged at certain angles and fixedly connected to build a frame for room roof glass, wherein concealed drainage structures are arranged on the main transverse beams and the secondary transverse beams respectively; second, the room roof glass is placed on the frame formed by the main transverse beams and the secondary transverse beams, sealing rubber strips are arranged between the lower side face of the room roof glass and the main transverse beams and between the lower side face of the room roof glass and the secondary transverse beams, sealing rubber strips are arranged between the upper side face of the room roof glass and the main transverse beams, the upper side face of the room roof glass and the main transverse beams are pressed by the sealing rubber strips, flowing water drainage is adopted for the visible positions of the whole sunlight room roof, and seeping water is actively drained to water accumulating grooves in the room roof to be drained out through the concealed drainage structures of the main transverse beams and the concealed drainage structures of the secondary transverse beams. The invention further discloses a structure of the sunlight room roof. Through the method for constructing the sunlight room roof and the sunlight room roof, the problem of water leakage of the sunlight room roof is effectively solved, the sunlight room roof can be waterproof even when no glue is applied to the roof at all, and the sunlight room roof is easy and convenient to machine, assemble and disassemble and high in thermal insulation capacity.

The invention relates to an ultraviolet-resistant radiation-protection aqueous ultra-thin fire resistive coating for a steel structure and a preparation method thereof. On the basis of adopting an ethylene-vinyl acetate emulsion and a polyvinyl acetate emulsion as matrix emulsions, through also adding an ammonium polyphosphate, melamine, dicyandiamide, pentaerythritol, zinc borate, expandable graphite, a light stabilizer and water as raw-material components for the fire resistive coating, the prepared and obtained fire resistive coating is enabled to be not only good in flame resistance, high in heat insulation and excellent in fire resistive performance and but also have advantages of good ultraviolet resistance and anti-radiation performance, good weather resistance and the like; the fire resistive coating provided by the invention is used in the steel structure; the adhesiveness with a matrix is high; the coating has weather-resistant, ultraviolet-resistant, anti-radiation and waterproof functions, and is good in comprehensive performance. The fire resistive coating provided by the invention can be used for an indoor steel structure, and accords with to a GB14907-2002 Fire Resistive Coating for Steel Structure; the fire resistance rating reaches 2h.

The invention relates to an exposed frame glass curtain wall adopting a PVC (polyvinyl chloride) heat insulation bar structure. The glass curtain wall comprises a vertical column and hollow glass (3), wherein the vertical column comprises an aluminium profile (1), an aluminium profile inner cover plate (4),an aluminium profile outer cover plate (5) and a screw (6); the aluminium profile inner cover plate (4) covers the aluminium profile (1); the aluminium profile outer cover plate (5) covers the aluminium profile inner cover plate (4); and the hollow glass (3) is embedded between the aluminium profile (1) and the aluminium profile inner cover plate (4) by sealing rubber strips (7). The glass curtain wall is characterized in that a PVC heat insulation bar (2) is embedded between the aluminium profile (1) and the aluminium profile inner cover plate (4) and is connected with the aluminium profile (1) in a dovetail manner; and the screw (6) is used for directly penetrating through and fixing the aluminium profile inner cover plate (4), the PVC heat insulation bar (2) and the aluminium profile (1). The glass curtain wall has strong heat insulation capability and lower cost.

The invention provides a novel hot pressing head with adjustable parallelism, overcomes the shortcomings of a conventional hot pressing head such as inconvenience in the adjustment of parallelism, poor stability and low heat insulation capability in high-frequency pressing and sticking, and realizes the manufacturing of high-precision hot pressing heads under the general machining precision conditions so as to effectively reduce the machining cost and be helpful for improving the overall rigidity of the pressing head and the production speed of equipment. The structure of the novel hot pressing head comprises an X-axis rotating seat 1, a Y-axis rotating seat 9, a heat insulating connecting plate 5, a rotating shaft 2, an X-axis left tensioning block 3, an X-axis right tensioning block 10, an X-axis adjusting seat 12, a Y-axis tensioning block 7, a Y-axis adjusting seat 13, a small heat insulating plate 4, big heat insulating plates 6 and 14, a radiating column 8, a pressing head seat 15, tensioning screws 11, top thread 16 and a copper bush 17. By adjusting the two tensioning screws 11 up and down, the pressing head seat 15 can be adjusted to rotate around an X axis and a Y axis.

The invention relates to the field of waterproof materials for buildings and particularly relates to a novel nanoalloy root-system-resistant composite coil and a preparation method thereof. The novelnanoalloy root-system-resistant composite coil comprises a coil, wherein the coil comprises a composite nanoalloy heat-insulating layer, an asphalt-based waterproof layer and a covering layer which are arranged from top to bottom; the composite nanoalloy heat-insulating layer is a tire body, and is a polyolefin nanoalloy heat-insulating layer; the asphalt-based waterproof layer consists of a rubber polymer and an asphalt-based material; the covering layer is a polyethylene silicon oil anti-sticking isolating film or PE (Polyethylene) crossing powerful film. The preparation method comprises thesteps of: preparing the heat-insulating layer, preparing the asphalt-based waterproof layer, carrying out dip-coating and sticking the film and the like. The novel nanoalloy root-system-resistant composite coil can prevent deformation, is strong in tensile strength, tearing resistance and corrosion resistance and good in heat-insulating property, has a root-resistant system capable of resisting puncture of the plant root system, is strong in bonding force, good in waterproof effect and low in applicable-environment requirement; in addition, the novel nanoalloy root-system-resistant compositecoil is unique in process, good in tire-base property, high in waterproof-layer property, simple in whole structure, excellent in property and strong in practicability.

The invention discloses a regular-hexagon honeycomb core with detachable circular noise-reducing structures. The regular-hexagon honeycomb core comprises regular-hexagon honeycomb main structures, circular honeycomb structures and Y-shaped aluminum components, wherein the circular honeycomb structures are added among the regular-hexagon honeycomb main structures; part of wall plates at the positions, where the circular honeycomb structures and the Y-shaped aluminum components are mounted, of the regular-hexagon honeycomb main structures are lacking; the extra spaces are suitable for the mounting of the detachable circular honeycomb structures; the radiuses, the heights and the mounting density of the circular honeycomb structures can be adjusted as required; once one circular honeycomb structure is not needed, the circular honeycomb structure can be replaced by one Y-shaped aluminum component; not only the regular-hexagon honeycomb main structures and the circular honeycomb structures but also the regular-hexagon honeycomb main structures and the Y-shaped aluminum components can be fastened by adopting the mutually active force generated from material plasticity deformation; and accordingly, the Y-shaped aluminum components can also be detached.