440results about How to "Improve heat insulation" patented technology

The invention provides a SiO2 nanoscale porous material with aerogel property prepared by microwave reaction and a preparation method thereof; the nanoscale porous material comprises silicon dioxide skeletons (1) and bubble-shaped nanoscale pores (2), wherein the foam-shaped nanoscale pores (2) are arranged among the silicon dioxide skeletons (1). The preparation method comprises four steps, namely preparation of silicon dioxide sol, preparation of wet gel, aging of mother solution and drying at normal pressure and the preparation of silicon dioxide sol comprises the following steps: adopting organosiloxane, organic solvent, water and acid catalysis as raw materials; mixing each components in a defined ratio in a container while adopting microwave radiation to perform hydrolytic polycondensation reaction or adopting microwave radiation to perform hydrolytic polycondensation reaction after mixing the components. Owning to adopting microwave radiation technology, a lot of bubbles are generated in silicon dioxide sol, a large quantity of nanoscale bubble-shaped pores are formed on the silicon dioxide substrate, and meanwhile silicon dioxide space skeletons are retained so that silicon dioxide porous material with extremely large specific area and higher intensity can be obtained. In addition, because carbon dioxide supercritical drying process is not needed, the production cost is greatly reduced.

The invention relates to a high rate composting method and equipment thereof. The method comprises the following steps: sending organic solid waste to separation equipment for separation and recycling; making the waste into grains and sending the grains into a materialized pretreatment groove; adding a wetting agent, a bond dissociation agent and water beyond saturation state of materials; after stirring, sending the mixture into a high speed stable kettle for heating and pressurizing; maintaining the material in the reaction kettle at liquid and solid state; adding an oxidizer and a heavy metal remover; after reducing pressure to reduce pressure in a vessel, sending the mixture to a high speed activation kettle; adding a softening agent and an activation agent for an activation reaction under the condition of increasing temperature and pressure; and carrying out steam instant explosion operation by leading material to a product finery and controlling humidity, granularity and nutriment in a fertilizer within a range as required. By the method, the organic waste can be transferred to high quality compost in an hour and hydroscopic property, moisture retaining quality, adsorptivityof N, P, K and trace elements needed by plants, ventilation property, thermal insulation, flood-resistance and desertification resistance can be improved greatly, bacterium and parasites can be killed completely, poisonous organic compound can be decomposed and excess heavy metal in material can be stabilized or removed.

The invention relates to a toughened and strengthened master batch which is used for improving polyolefin, so that the toughening and the strengthening effect is significant, and simultaneously, clean production can be realized. The toughened and strengthened master batch is compounded from the following components: 10 to 20 mass parts of polyethylene, 50 to 75 mass parts of crystal whisker, 15 to 30 mass parts of elastomer, coupling agent which is 1 to 3 percent of the mass parts of the crystal whisker, lubricant which is 1 to 3 percent of the mass parts of the crystal whisker, and antioxidant which is 0.5 to 1 percent of the mass parts of the total mass. The invention mainly prepares the master batch from the crystal whisker, fills the polyolefin to toughen, strengthen and modify the master batch; and because the crystal whisker has high strength, high modulus, wear resistance, high temperature resistance, heat insulation and other excellent performance, the utilization of the crystal whisker to fill, toughen and strengthen the polyolefin has good effect. The invention first treats the surface of the crystal whisker so that the surface has activity and is easy to be compatible with a matrix, the crystal whisker is easy to be dispersed in materials, and the master batch prepared by the invention can greatly improve the toughness and the strength of the polyolefin.

The invention discloses a method for manufacturing a light GMT board. The method mainly comprises the following steps: making semi-finished felt by a method of mixing chopped modified alkali-free glass fiber and chopped modified polypropylene fiber; producing an evenly impregnated glass fiber chopped mixed felt by dusting, electrostatic impregnation by a dry method and compound needle punching, and making the light GMT board by baking plasticization, fusing impregnation, compound filming, non-woven fabrics covering, continuous rolling, cooling, shaping and edge trimming. The method has the advantages of low energy consumption, high yield, good impregnation uniformity and rapid continuous production speed, the board structure is changed by controlling the content of the glass fiber and resin so that the cost is greatly reduced, and the method is applicable to industrialized production. Meanwhile, the light GMT board can replace wood or steel for environment-friendly recycle. The board also has a sandwich froth layer which enhances expanding, thermal insulation and sound insulation performances of the board, thus achieving unification of light weight and high rigidity.

The invention discloses an antistatic halogen-free flame-resistant UHMWPE (ultrahigh-molecular-weight polyethylene)/graphene composite material and a preparation method thereof. The antistatic halogen-free flame-resistant UHMWPE/graphene composite material comprises the following components in parts by weight: 70-120 parts of UHMWPE, 6-30 parts of a flame retardant, 3-15 parts of a synergistic flame retardant, 2-20 parts of a flow modifier, 0.05-2 parts of an antioxidant, 3-8 parts of an antistatic agent, 2-8 parts of a compatilizer and 1-3 parts of a smoke suppressor. According to the antistatic halogen-free flame-resistant UHMWPE/graphene composite material disclosed by the invention, a novel antistatic agent is adopted to improve the antistatic property of UHMWPE, and the novel antistatic agent is hyperbranched polyethylene surface modified graphene. The novel antistatic agent has the advantages as follows: on the one hand, due to the ultrahigh conductivity of graphene, a good conductive channel can be formed in matrix resin under the condition that the added amount is small, and on the other hand, the hyperbranched polyethylene surface modified graphene can be well dispersed in UHMWPE and adhesive power between the graphene and an interface of UHMWPE is improved.

A method and apparatus for preventing the unintended activation of SMA devices by ambient temperatures that exceed the phase transition temperature of the SMA material itself. In one embodiment a passive actuator is coupled to an active actuator, each having identical arrangements of SMA wire, but connected in opposite directions to compensate for temperature drift that is not due to powered heating. A second embodiment consists of a passive SMA wire connected to a latch/release mechanism allowing the actuator itself to move rather than moving the load. In a third embodiment the passive wire is connected to a load coupling, so that the load itself is disconnected from the actuator when the passive wire reaches the phase transition temperature. The passive wire may be made of a lower-temperature wire than the active wires, so that the release action occurs long before the active wire begins to be moved by ambient temperature.

A double-vacuum-layer metal vacuum composite plate with the edge sealed by a seal strip comprises a housing, at least two core plates and a vacuum cavity and is characterized in that the housing is a low-carbon steel plate or a low-carbon steel composite plate, the core plates are located in the vacuum cavity formed through seal welding of the housing, the core plates provide additional strength for the housing and ensure the smoothness of the housing under atmospheric pressure, the vacuum cavity is welded and sealed by utilizing a glass solder in a vacuum furnace under high vacuum and high temperature, the seal strip is arranged at the welding position of the edge portion of the low-carbon steel plate, the coefficient of thermal expansion of the low-carbon steel plate is matched with that of the glass solder, a partition plate is arranged in the vacuum cavity and divides the vacuum cavity into two to form double vacuum layers, and supports are arranged in the vacuum layers and are independently manufactured or are directly formed on the core plate or the partition plate. A manufacturing method of the double-vacuum-layer metal vacuum composite plate is simple in process, and strength, heat-insulation, sound-insulation and fireproof performance and a decorative function can be improved.

A nanometer thermal insulation coating and a method of manufacturing the same is disclosed. The method includes the steps of : mixing and stirring nanometer metal oxide and stirring-assistant liquid to form the mixed paste; filtering and drying the mixed paste to form the dried mixed bulk; performing calcination to the dried mixed bulk to form the oxide solid solution bulk of antimony tin oxide/silicon oxide and/or vanadium dioxide/silicon oxide; adding dispersing-assistant liquid, mixing and sequentially mechanical stirring, performing ultrasonic resonance and high pressure homogenizing to form the elementary dispersion bulk; and adding mixing-assistant liquid, mixing and sequentially steps of mechanical stirring and high pressure homogenizing to form nanometer thermal insulation coating, suitable to apply on the glass to achieve the feature of thermal insulation.

The invention discloses a thermal barrier coating with structure gradient and a preparation method thereof. The thermal barrier coating comprises a base body, a bonding layer and a ceramic surface layer which are sequentially arranged from bottom to top, wherein the microstructure of the ceramic surface layer is in gradient change, and is sequentially equipped with a ceramic bottom layer of a quasi-cylindrical structure, a ceramic transition layer of a layered and cylindrical mixed structure, and a ceramic top layer of a compact layered structure from bottom to top. Disposable continuous preparation for the thermal barrier coating can be realized through an ultralow-pressure plasma multi-phase deposition method. The prepared thermal barrier coating has performance advantages of being highin heat insulation, long in service life, stronger in corrosion resistance, resistant to scouring, and the like.

The invention discloses a high-strength artificial quartz stone plate and a production process thereof. The high-strength artificial quartz stone plate is made from, by weight, 40-60 parts of 4- to 10-mesh quartz sand, 25-35 parts of 400- to 600-mesh quartz powder, 30-40 parts of binder, 10-20 parts of cullet, 5-10 parts of aluminum silicate fiber, 10-15 parts of organic bentonite, 20-25 parts of zirconia ceramic powder, 30-40 parts of sodium silicate, 15-20 parts of fly ash, 0.5-1 part of isopropyl tri(dioctylpyrophosphate) titanate, and 0.2-0.3 part of pigment. The artificial quartz stone plate produced by the production process has the advantages of light weight, uniform density, bright color, rich pattern, high impact resistance, high wear resistance, fine heat resistance, fine weatherability, deformation resistance, scratch resistance, aging resistance, coloring resistance, environment friendliness, no pollution and the like, has high performance indexes in terms of acid and alkali resistance, slat spray resistance, gasoline resistance and the like in organic solvents, and is durable and fully as effective as simulation natural stone.

The invention discloses a double-hollow glass ceiling module with a film suspended therein. An optical control film serves as a middle layer, and an internally suspended film structure frame, a mounting structure frame, a reinforcing separating strip and glass are sealed into an integral double-hollow glass plate. An inner structure frame and an outer structure frame are made from a novel heat-isolating material with a coefficient of thermal expansion similar to that of the glass. The internally suspended film structure frame is structurally connected through a heat-isolating bridge. A butyl rubber tape on the outer surface of the internally suspended film structure frame serves as a first sealing layer. A second sealing layer consists of the external reinforcing separating strip and a silicone structural sealant, the whole structure is always consistent to the thermal deformation of the glass, so that the sealing capability of the whole system is more reliable, and the heat-isolating property, the moisture condensation-preventing property, the sound-isolating property and the like are greatly improved. Dirt is not easily accumulated on the outer surface of a mounted ceiling, so that the ceiling is convenient to clean and maintain. The double-hollow glass ceiling module has a flexible assembling and mounting way, and can be applied to different vertical surfaces of an outer building rail.

A method of making a micron gap thermal photovoltaic device wherein at least one standoff is formed on a photovoltaic substrate, a sacrificial layer is deposited on the photovoltaic substrate and about the standoff, an emitter is attached to the standoff and has a lower planar surface separated from the photovoltaic substrate by the sacrificial layer, and the sacrificial layer is removed to form a sub-micron gap between the photovoltaic substrate and the lower planar surface of the emitter.

The invention discloses infusorial earth environment-friendly interior wall decoration polyurethane synthetic leather and a production method thereof. The synthetic leather comprises base cloth, a waterproof agent layer which is coated on one side of the base cloth and a waterborne polyurethane layer which is coated on the waterproof agent layer and contains infusorial earth, wherein the waterborne polyurethane layer containing the infusorial earth comprises, by weight, 100 parts of waterborne polyurethane, 1-20 parts of anti-settling agent, 1-20 parts of ricinate, 50-300 parts of infusorial earth and 1-50 parts of waterborne pigment paste. According to the synthetic leather and the production method, the used raw materials are environment-friendly materials, the produced infusorial earth environment-friendly interior wall decoration polyurethane synthetic leather has good durability, feels comfortable, is elegant in appearance, can be widely applied to interior wall decoration of upscale wine-shops and hotels, fashionable Karaok telsvision (KTV), senior clubs, senior villas or mansions, and has great market prospect.

The invention relates to a coating composite material, in particular to a coating composite material with high heat insulation and high peeling strength taking polyvinyl chloride and polyester fiber base cloth as main base materials and a preparation method of the material, and belongs to the technical field of new materials. The composite material comprises a polyester fiber fabric base materiallayer, wherein a coating surface layer and a back layer are respectively arranged on both sides of the base material layer; the back layer comprises a flame-retardant PVC primer layer and a flame-retardant PVC heat insulation layer from inside to outside; and the coating surface layer comprises a flame-retardant PVC primer layer, a flame-retardant PVC heat insulation layer, a PVC high reflection layer and an infrared reflection heat insulation transparent layer from inside to outside, and is prepared by adopting a specific preparation method. The coating composite material has good heat insulation, high peeling strength and wicking resistance characteristics, and has excellent flame resistance, weather resistance and ultraviolet resistance.

The invention discloses a construction method for a light steel skeleton special-shaped model suspended ceiling. The construction method includes the following steps that S1, elevation, position identification and paying-off are conducted on all regions of a site; S2, main electromechanical pipelines are installed; S3, a special-shaped model of the suspended ceiling is manufactured and installed; S4, hanging bars, a main keel and an auxiliary keel are installed; S5, auxiliary electromechanical pipelines are installed; S6, glass magnesium boards are used for pre-reinforcing the tail ends of the electromechanical pipelines and gypsum boards are installed; S7, electromechanical point positions at the tail ends of the electrochemical pipelines are tapped; S8, seam putty and overall basic-layer putty treatment is conducted; S9, surface layer coating is conducted on the suspended ceiling. Construction efficiency is high, labor intensity is small, and the constructed special-shaped suspended ceiling has good rigidity and toughness.

The present invention relates to micron-gap thermal photovoltaic (MTPV) technology for the solid-state conversion of heat to electricity. The problem is forming and then maintaining the close spacing between two bodies at a sub-micron gap in order to maintain enhanced performance. While it is possible to obtain the sub-micron gap spacing, the thermal effects on the hot and cold surfaces induce cupping, warping, or deformation of the elements resulting in variations in gap spacing thereby resulting in uncontrollable variances in the power output. A major aspect of the design is to allow for intimate contact of the emitter chips to the shell inside surface, so that there is good heat transfer. The photovoltaic cells are pushed outward against the emitter chips in order to press them against the inner wall. A high temperature thermal interface material improves the heat transfer between the shell inner surface and the emitter chip.

The invention relates to a sandwich vacuum glass with high safety performance, comprising at least two pieces of planar sandwich glass of the same size and shape, or non planar sandwich glass of the same radian and edge alignment; wherein, a extractor vent is arranged on one piece of the sandwich glass and a support is arranged between the two pieces of sandwich glass; the edge of the sandwich glass is sealed with sealing material to form a sealed chamber, and then the body of the sandwich vacuum glass is produced; the extractor vent is sealed with sealing material after the sealed chamber is evacuated. The invention has the advantages that the invention can produce vacuum glass with sandwich safe glass, and conveniently produce a plurality of sandwich vacuum glass of high safety performance and different sizes to satisfy the demands of the sandwich vacuum glass of high safety performance.

The invention provides a purple-light cross-linked low-smoke halogen-free high flame-retardant EVA cable which comprises conductors. Each conductor is covered with a shield layer, the shield layer is covered with a purple-light cross-linked insulating layer, the purple-light cross-linked insulating layer is covered with a ceramic silicone rubber layer, and the ceramic silicon rubber layer is covered with an anticorrosive layer. Flame-retardant glass fiber filling ropes are filled among the conductors, the conductors and the flame-retardant glass fiber filling ropes are together covered with a flame-retardant tape, the flame-retardant tape is covered with an internal purple-light cross-linked protective layer, the internal purple-light cross-linked protective layer is provided with an armor layer, the armor layer is covered with an external purple-light cross-linked protective layer, the external purple-light cross-linked protective layer is covered with a waterproof layer, the waterproof layer is covered with an SBS rubber layer, and the SBS rubber layer is coated with an ultraviolet-proof layer. The invention further provides a production method of the cable. The purple-light cross-linked low-smoke halogen-free high flame-retardant EVA cable is provided with multiple flame-retardant layers and the waterproof layer.

The invention relates to a multi-layer composite thermal protective material and a preparation method thereof. The thermal protective material is prepared by alternately laminating thermal insulationmaterials with the first thickness and anti-infrared radiation materials with the second thickness. The multi-layer thermal protective material is formed by combination of thermal insulation, thermalprevention, gas convection resistance and infrared radiation resistance multi-heat insulation mechanism, and the purposes of high performance heat insulation, thickness space saving and lightweight weight reduction are achieved. The thermal protective material is green and environmentally friendly in production process, is a thermal protective material with high price/performance ratio, has the highest temperature resistance reaching up to 1600 DEG C, and can be applied in industrial kilns, metallurgy, heat supply network pipelines, aerospace and other fields.

The invention discloses a high-flame-retardant bubble heat insulation material. A flame-retardant polyethylene bubble layer is used as a middle basic layer, a first flame-retardant polyethylene layer is attached to the upper surface of the flame-retardant polyethylene bubble layer, a flame-retardant polyester polymer film layer is attached to the upper surface of the first flame-retardant polyethylene layer, a first aluminum film layer is attached to the upper surface of the flame-retardant polyester polymer film layer, a second flame-retardant polyethylene layer is attached to the lower surface of the flame-retardant polyethylene bubble layer, a flame-retardant woven cloth layer or a flame-retardant non-woven layer which is made of polyethylene or polypropylene and has the thickness of 10-100 microns is attached to the lower surface of the second flame-retardant polyethylene layer, and a second aluminum film layer is attached to the lower surface layer of the flame-retardant woven cloth layer or the flame-retardant polyethylene layer. The high-flame-retardant bubble heat insulation material has excellent performance, such as high flame retardation, high heat insulation, high corrosion resistance, high strength, shock absorption, and the like.

The invention belongs to the technical field of building materials, and particularly relates to a solid waste unfired ceramsite, a preparation method thereof, foam concrete and a light partition board. The solid waste unfired ceramsite provided by the invention is prepared from the following preparation raw materials in percentage by mass: 50 to 55 percent of steel slag powder, 10 to 15 percent ofore slag powder, 5 to 10 percent of cement, 1 to 5 percent of an excitant, 3 to 5 percent of a density regulator and 20 to 30 percent of water. The stacking density of the solid waste unfired ceramsite provided by the invention is 600-700kg/m<3>, the cylinder compressive strength is 8-12MPa, and the water absorption rate is 6-8%. The baking-free ceramsite foam concrete prepared from the solid waste baking-free ceramsite has relatively low density and a heat conductivity coefficient, and also has excellent compression resistance and stability.