47results about How to "Realize the barrier effect" patented technology

The invention discloses water-based coating containing a graphene / zinc-aluminum hydrotalcite nano composition and a preparation method thereof. The water-based coating is prepared from the following components in parts by weight: 30 to 50 parts of water-based resin, 25 to 40 parts of water, 0.1 to 0.5 part of dispersing agent, 0.1 to 0.5 part of wetting agent, 0.1 to 0.5 part of defoaming agent, 0.1 to 0.5 part of thickening agent, 0.1 to 0.5 part of film forming aids, 0 to 10 parts of curing agent, 0 to 25 parts of titanium dioxide, 0 to 20 parts of calcium carbonate, and 0.1 to 2.5 parts of graphene / zinc-aluminum hydrotalcite nano composition. The graphene / zinc-aluminum hydrotalcite nano composition is added into the water-based coating, so that the high temperature resistance, the corrosion resistance, the flame retardant property, the weather resistance, the impact resistance, the abrasion resistance, the hardness and the obstruction property of the water-based coating are significantly improved, and the multiple functions of the water-based coating are improved.

The invention relates to a supported composite photocatalytic coating and a preparation method thereof. A supported photocatalytic coating and a waterproof adhesive layer are adhered to and combined with a substrate; a specially structured supporting material and a composite TiO2 / g-C3N4 photocatalyst are mixed in a high energy ball milling manner so as to effectively improve the supporting rate of the photocatalyst; and the response range can be widened to visible light from ultraviolet light through the composite photocatalyst, thus realizing effective photocatalysis efficiency. The supported composite photocatalytic coating and the preparation method thereof are simple in process, have relatively high economic and environment benefits and belong to high value-added resource utilization.

The invention relates to a full-life-stage recirculating aquaculture system of jellyfish and a breeding method therefor. The full-life-stage recirculating aquaculture system of the jellyfish comprisesa dismountable breeding cylinder, a bottom cylinder, a filtering system, a water pump, an upper water pipe, a lower water pipe or the like. The upper water pipe is used for supply water to the breeding cylinder, and the lower water pipe is used for leading the water in the breeding cylinder out and into the filtering system in the bottom cylinder, so that the breeding water can be recycled between the breeding cylinder and the filtering system. The breeding cylinder provides power for motion and predation of the jellyfish and realizes an oxygenation effect by air holes and / or a porous water spraying pipe, and a porous inclined plate blocks the jellyfish so as to keep the jellyfish in the breeding cylinder, so that mechanical damage caused by jellyfish salvage can be avoided. The full-life-stage recirculating aquaculture system of the jellyfish, and the breeding method therefor solve breeding problems in different stages of a life cycle of the jellyfish, can also greatly save manpowerand time consumed in jellyfish breeding, increase breeding efficiency and are of good application prospect.

The invention discloses a contaminated site risk management and control collaborative remediation system based on functional barrier. The remediation system comprises a pollution barrier, a pollutionremediation area and a water treatment system. An annular field groove is formed in the periphery of the contaminated site, and the pollution barrier and the pollution remediation area are arranged inthe annular field groove and separated by a supporting plate; the pollution remediation area is located on the inner side of the annular field groove and comprises a water collection and drainage system, a remediation filler layer, an aeration system and a filter layer. The water collection and drainage system comprises a water collection and drainage groove which is laid at the bottom of the annular field groove along the pollution remediation area; a submersible pump is arranged in the water collection and drainage groove and used for conveying polluted underground water to a water treatment system; the remediation filler layer is arranged above the water collection and drainage groove; the aeration system is arranged on the inner side of the remediation filler layer; the filter layer is positioned on the inner side of the aeration system and is separated from the aeration system by a sieve plate. According to the invention, a functional barrier remediation process is realized, so that the pollution remediation function of a risk management and control technology is improved, and the coordination of risk management and control and pollution remediation is realized.

The invention discloses flame-retardant modified PMMA (polymethylmethacrylate) microspheres and a preparation method thereof. The flame-retardant modified PMMA microspheres are of a nanometer core-shell structure, an inner core is PMMA microspheres, and an outer shell is an electrolyte layer formed by alternately depositing of different two-dimensional nanosheet layers. The preparation method comprises the steps as follows: soaking the PMMA microspheres pretreated by isopropanol in a graphite phase carbon nitride suspension liquid and a graphene oxide dispersion liquid sequentially for layer-by-layer self-assembly to obtain the flame-retardant modified methyl methacrylate microspheres. According to the flame-retardant modified PMMA microspheres, the hindering effect on oxygen and volatile gas transfer and the barrier effect on heat flow are realized mainly based on the physical barrier function of the two-dimensional nanometer sheet layers, and accordingly, excellent flame retardant performance and self-extinguishing performance are obtained. The preparation method is simple and flexible to operate, good in stability, lower in cost, low in operation condition requirement, and beneficial to large-scale industrial production.

The invention discloses high-barrier nylon as well as a preparation method and application thereof, and belongs to the field of polymer materials. According to the product disclosed by the invention, the supercritical fluid is introduced into a nylon matrix as a reaction aid, so that the compatibility of all the components is improved, and meanwhile, the physical dispersion of all the components is realized; besides, unsaturated dicarboxylic acid is introduced into the components, dispersed in a nylon matrix and subjected to a polymerization reaction with the nylon matrix, and an obtained polymerization product reacts with surrounding oxygen under the action of a catalyst, so that after the high-barrier nylon is prepared into a packaging material, internal residual oxygen can be completely consumed, and the internal oxygen content can be controlled to be lower than 1.5 ppm; and physical barrier and chemical barrier to oxygen are really realized. The invention also discloses a preparation method of the high-barrier nylon and a food packaging material prepared from the high-barrier nylon.

The invention discloses nano-zinc oxide-filled diatomite-rubber powder composite modified aging-resistant asphalt which is characterized in that a preparation method comprises the following steps: calcining diatomite at a high temperature, mechanically grinding and crushing, sieving and then drying; mechanically crushing and sieving a waste tire to obtain a waste rubber powder; adding a silane coupling agent in an alcoholic solution, hydrolyzing, uniformly spraying on the surface of the rubber powder and fully mixing; after microwave treatment, soaking with a sodium hydroxide solution and thendrying in a drying box to obtain the modified rubber powder; dissolving graphene oxide in dimethyl formamide to obtain a liquid A; dissolving nano-zinc oxide in dimethyl formamide to obtain a liquidB; mixing the liquids A and B and organic vermiculite and performing magnetic stirring and water-bath heating to obtain a compound aging-resistant modifier; heating petroleum asphalt to a flow state,adding the materials obtained previously, uniformly stirring, placing in an oil bath pan for heat preservation, cutting and swelling to obtain the aging-resistant asphalt.

The invention provides a large-diameter porous spacing structure used in a biological-cathode microorganism electrochemical system, and relates to a large-diameter porous spacing structure in an electrochemical system. The invention aims to solve the problem of high cost of a spacing material in an existing microorganism electrochemical system. The porous spacing structure main body is in a plateshape or a cylindrical shape and comprises at least one layer of large-diameter porous spacing material, at least one layer of insulation material is arranged in the large-diameter porous spacing material in the structure main body, holes of the large-diameter porous spacing material are opened holes, and the diameters of the holes are 0.1 micrometer to 5 millimeters. The spacing structure is usedfor partitioning a cathode chamber and an anode chamber, the structure has seepage water through capability, and oxygen dissolution between the cathode and the anode at two sides, COD gradient and negative / positive ion conduction capability are maintained; compared with an ion / proton exchange membrane, the structure has the advantage that very low cost can be achieved; and the large-diameter porous spacing structure is suitable for the biological-cathode microorganism electrochemical system.

The invention discloses a damage prevention ordered transporting device for snake wine, and belongs to the technical field of industrial production devices. The device comprises a supporting frame. Acarrier plate is fixed to the top of the supporting frame, an inlet is formed in one end of the top of the carrier plate, and first baffles are fixed to the two sides of the inlet. A transfer mechanism is arranged on the side, close to the inlet, of the carrier plate. According to the damage prevention ordered transporting device, rotating mechanisms are arranged on a conveying mechanism, along with transmission of a conveying belt and cooperative use of an air bellow, wine bottles can be rotationally aired in the conveying process, and the airing effect of the device is improved; through thearrangement of drive mechanisms on one side of the conveying mechanism and drive of a conveying moor, rotating wheels can be driven to rotate through cooperation with the drive mechanisms, then shifting plates on a first rubber belt is controlled to run while the conveying mechanism is started, and pushing and blocking to the wine bottles are achieved; and colliding of the wine bottles in the conveying process is effectively avoided, wine bottle damage is avoided, and noise of the device in the use process is lowered.

The invention discloses a skylight frame with good stability. The skylight frame comprises a window seat, a skylight, a connecting mechanism and a filtering mechanism, wherein the connecting mechanism is arranged between the window seat and the skylight, the top end of the filtering mechanism is fixedly connected to the bottom end of the skylight, the bottom end of the filtering mechanism is slidably connected to the outer side of the window seat, the window seat comprises a seat body used for bearing the skylight, and the seat body is fixedly arranged on the outer side of the top end of a window opening. According to the skylight frame with good stability, gaps between the window seat and the skylight is blocked through the filtering mechanism arranged on the periphery of the bottom end of the skylight, outside mosquitoes, sundries and the like are filtered through filter screens and prevented from entering a room along with airflow to influence the normal life of a user, practicability of the skylight frame is enhanced, the filter screens can be effectively fixed and clamped through sliding grooves, the filter mechanism is prevented from being damaged when wind is too large, normal use of the filter mechanism is ensured, and the service life of the filter mechanism is prolonged.

The invention discloses an intelligent batten gluing machine for wood processing. The intelligent batten gluing machine for wood processing comprises a rack and a coating assembly arranged on the rack. The intelligent batten gluing machine for wood processing is characterized in that a glue feeding assembly capable of shuttling along the gluing width of the coating assembly is arranged on the rack, a glue feeding channel communicating to the coating assembly is formed in the glue feeding assembly, a closing block capable of closing the coating assembly is arranged on one side of the glue feeding channel on the glue feeding assembly, a glue return channel is arranged on the other side opposite to the closing block, a cleaning mechanism capable of spraying along the coating length directionand an isolating mechanism capable of shuttling along the coating width direction are arranged on the rack separately, and the cleaning mechanism and the isolating mechanism are located on two sides of a glue discharging position of the coating mechanism. The intelligent batten gluing machine for wood processing disclosed by the invention is high in stability, can save glue and reduce the processing environmental pollution effectively, and meanwhile, can clean automatically.

The invention provides anticorrosive coating with a barrier property and belongs to the field of waterborne coating. The anticorrosive coating is prepared from the following components in parts by weight: 60 to 90 parts of poly(aromatic ether sulfone) coating, 1 to 20 parts of a modified two-dimensional nano-TiO2 sheet layer, 0.2 to 3 parts of a flatting agent, 0.1 to 2 parts of a dispersant, 0.5to 5 parts of a film-forming auxiliary agent, 0.1 to 2 parts of a de-foaming agent and 0.5 to 2 parts of an adhesion promoter. The modified two-dimensional ultra-thin nano-TiO2 sheet layer is obtainedby adding two-dimensional ultra-thin nano-TiO2 sheet layer into a silane coupling agent and carrying out surface modification; the thickness of the modified two-dimensional ultra-thin nano-TiO2 sheetlayer is 10 to 50 nm and the spreading width of a nano-sheet is 100 to 500 nm. The anticorrosive coating provided by the invention has good barrier property.

The invention provides an earthworm snail blocker for an airport runway. The airport runway earthworm snail barrier includes several barrier units arranged on both sides of the airport runway; each barrier unit is enclosed by a bottom plate, a left side plate, a right side plate, a rear side plate and a top plate to form a half with an opening facing away from the airport runway. A closed hollow cavity; a vertical plate perpendicular to the left plate and suspended at the bottom is installed on the top plate of the hollow cavity, the height of the vertical plate is not greater than half of the height of the left plate, and the vertical plate is not more than half of the height of the left plate. The length of the straight plate is equivalent to the length of the bottom plate; a medicine holding plate is installed on the side of the vertical plate facing the rear side plate, and the length of the medicine holding plate is equivalent to the length of the vertical plate; Chemicals for killing or repelling earthworms and snails are placed on the medicine board. The invention can effectively prevent earthworms, snails and other low-level animals from climbing into the airport runway all-weather, and can not only physically block, but also chemically kill, and has the advantages of simple use method and lasting effect.

The present invention relates to a container for a hydraulic circuit, more specifically, to a hydraulic oil compensation tank for a hydraulic power steering device, which includes a housing (2), an inlet ( 4) and outlet, at least one filter (5, 24) and bypass channel (13), the at least one filter (5, 24) is arranged between the inlet (4) and the outlet and surrounds the inner filter chamber ( 6), for separating solid constituents from a fluid flow, wherein the filter (5, 25) has an inlet opening (11) on one wall (7), which can be connected in a fluid-tight manner to the inlet (4), and a bypass passage (13) for selectively bypassing the filter (5, 24) according to a pre-determinable pressure differential between the inlet (4) and the outlet. At least one sloshing baffle (16, 26) protruding into the inner filter chamber (6) is arranged on the wall (7).