467results about How to "Block delivery" patented technology

The invention discloses a low-temperature-resistant heat-insulating composite material and a preparation method thereof, and relates to the technical field of composite materials, and the material comprises an outer protective layer, a middle reinforcing layer and an inner heat insulating layer. The inner heat insulation layer is composed of aerogel, polytetrafluoroethylene micro powder and the like, and good heat insulation performance is provided. The middle reinforcing layer contains ethylene-propylene rubber and the like, so that the material is endowed with elasticity, mechanical strength and flame retardance. And the outer protective layer is made of PVC resin and the like, so that the overall strength and wear resistance are enhanced. The low-temperature-resistant anti-cracking additive is prepared from polyimide resin and the like, so that the anti-cracking performance is improved. The modified filler is prepared through a specific method, and the material performance is improved. During preparation, all the layers are prepared respectively and then subjected to hot-pressing compounding. The internal mixer control system guarantees preparation parameter control of the middle enhancement layer, and a PID control algorithm is adopted. The composite material has the advantages of reasonable structural design, synergistic effect of all layers, mature preparation method and process, excellent performances of low temperature resistance, heat insulation, cracking resistance and the like, and is suitable for being applied to various low-temperature environments.

The invention belongs to the technical field of high polymer materials. The invention particularly relates to a halogen-free flame-retardant ablation-resistant polypropylene composite material as well as a preparation method and application thereof. The polypropylene composite material comprises 40-60% of flame-retardant modified master batch and 40-60% of long glass fiber reinforced polypropylene master batch, the flame-retardant modified master batch is prepared from the following raw materials in parts by weight: 24-44 parts of polypropylene resin, 5-15 parts of PPE resin, 2-5 parts of a compatilizer, 20-40 parts of piperazine substances, 10-20 parts of ammonium phosphate substances, 4-8 parts of surface modified superfine aluminum hydroxide and 0.3-1.5 parts of a processing aid. The content of the long glass fibers in the long glass fiber reinforced polypropylene master batch is 40-60wt%. PPE resin is introduced into a polypropylene halogen-free flame-retardant system, modified superfine aluminum hydroxide is compounded, halogen-free flame-retardant master batches and long glass fiber reinforced polypropylene master batches are uniformly compounded in proportion, and the halogen-free flame-retardant ablation-resistant material is obtained. While the high flame retardance of the material is maintained, the ablation resistance can be greatly improved, and the material is not burnt through after being continuously burnt for 10 minutes by a flame spray gun at the temperature of 1300 DEG C.

The invention discloses a flame-retardant fiber curtain fabric and a preparation method thereof, and relates to the technical field of flame-retardant fabrics, the flame-retardant fiber curtain fabric comprises a fabric substrate and a flame-retardant coating arranged on the fabric substrate, and the flame-retardant coating comprises nano-silica particles and nano-magnesium hydroxide particles in a mass ratio of 1: 1.2-2. The flame-retardant fiber curtain fabric prepared by the invention has remarkable flame retardance and thermal stability, and shows an excellent flame-retardant effect in a high-temperature environment.

The invention relates to a halogen-free flame-retardant TPU composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The halogen-free flame-retardant TPU composite material is prepared from the following components in parts by weight: 3 to 10 parts of a modified flame retardant, 2 to 10 parts of phenoxy cyclophosphazene, 80 to 100 parts of TPU particles, 90 parts of N, N-dimethylformamide, 0.8 to 1.2 parts of an ultraviolet light absorber and 2.5 to 3.5 parts of a lubricating agent, in the modified flame retardant, ammonium polyphosphate is heated into polyphosphoric acid, heat insulation and flame retardance are achieved, the comprehensive performance of the material is improved, and a quaternized structure and a carbamate bond synergistically enhance the flame retardance and heat resistance of the material; in the ultraviolet light absorber, cyanuric chloride and benzotriazole intermediates absorb ultraviolet rays, so that the damage of the ultraviolet rays to the material is reduced, and the ageing resistance and the toughness are enhanced; the halogen-free flame-retardant TPU composite material prepared by the invention not only has good flame-retardant and heat-resistant effects, but also has excellent ultraviolet resistance.

The invention discloses a single event upset reinforced magnetic random access memory reading circuit, and belongs to the field of nonvolatile memories. Interlocked transistors are added on the basis of a traditional 6T reading circuit, meanwhile, a PMOS tube and an NMOS tube are introduced, and errors caused by the single event upset effect can be effectively corrected. The method has the following advantages that single event effect sensitive nodes are considered, zero upset nodes do not exist in the reinforcement method, meanwhile, 1 upset can be rapidly corrected, the single event upset resistance is higher, and the method can be used for reliable storage of data in the space radiation environment.

The invention discloses a feeding mechanism for production of shredded konjac, and relates to the technical field of konjac food processing.The feeding mechanism comprises a placing frame and a processing device and further comprises a flattening device, a rotating motor is fixedly installed on the surface of the placing frame, a roller is fixedly installed at the output end of the rotating motor, a conveying belt is arranged on the circumferential face of the roller, and the conveying belt is connected with the processing device. A roller rotationally penetrates through the surface of the containing frame, a feeding frame is fixedly installed at the top of the processing device, a belt moves to drive a rotating rod to rotate, the rotating rod rotates to drive an arc-face rod to rotate to flatten raw materials conveyed to a discharging point, and when the raw materials are conveyed to the discharging point by a conveying belt, the raw materials fall into the feeding frame under the action of the gravity of the raw materials. Raw materials enter the machining device through the feeding frame to be machined, the cambered surface rod is driven by the rotating rod to rotate, the raw materials can be effectively flattened at the discharging point, it is ensured that the raw materials are evenly distributed in the machining and transporting process, and the situation that the raw materials are stacked or excessively sparse is avoided.

The invention relates to the technical field of building thermal insulation materials, in particular to a preparation method of a building thermal insulation material based on modified aerogel, solves the defects in the prior art, and comprises the following components in parts by weight: 30-50 parts of modified aerogel, 5-15 parts of photonic crystals, 2-8 parts of carbon nanotubes, 10-20 parts of phase change energy storage microspheres and 1-5 parts of photothermal conversion nanoparticles. The preparation method comprises the following steps of: carefully selecting and combining various functional components, such as modified aerogel, carbon nanotubes, phase change energy storage microspheres, photothermal conversion nanoparticles and the like, so as to prepare the thermal-insulation coating with the thermal-insulation function, thereby obtaining the thermal-insulation coating with the thermal-insulation function, the thermal-insulation function, the thermal-insulation function, the thermal-insulation function and the thermal-insulation function. According to the building heat insulation material technology based on the modified aerogel, through innovative material compounding and multifunctional integration, the heat insulation performance is greatly improved, multiple advantages of environmental protection, safety, multiple functions and the like are brought, and a new solution is provided for the field of building energy conservation.

The invention discloses steelmaking flue gas recovery and waste heat utilization equipment and a use method, and relates to the technical field of flue gas waste heat recovery. Dust in the steelmaking flue gas can be filtered through the filter cartridge before the flue gas enters the heat exchange mechanism, and then the clean flue gas is conveyed into the heat exchange mechanism, so that the inner wall of the heat exchange barrel can be kept in a clean state all the time, the dust in the steelmaking flue gas is prevented from being attached to the inner wall of the heat exchange barrel, heat transfer is prevented from being hindered, and the service life of the steelmaking flue gas is prolonged. The smoke dust scraping assembly can scrape off smoke dust attached to the inner wall of the filter cartridge, the self-cleaning effect can be achieved while the heat of the steelmaking smoke gas is recycled, and therefore the good filtering effect of the filter cartridge is always kept, and the scraped-off smoke dust can be collected in a centralized mode under pushing of an auger. When high-temperature flue gas passes through the heat exchange assemblies, the heat exchange assemblies can rotate around the axes of the heat exchange assemblies, so that surrounding clear water is disturbed, clear water at different positions is stirred and mixed, and water temperature areas at different positions are consistent.

The invention belongs to the technical field of glass fiber composite materials, and particularly relates to a flame-retardant, heat-insulating and sound-absorbing composite material and a preparation method thereof. By adding zirconium oxychloride, gadolinium nitrate and other materials, the flame retardant property of the composite material is enhanced, the inflammability of the composite material under a high-temperature condition is effectively reduced, and the safety of the material under an extreme condition is improved; the introduction of the phase change material is beneficial to heat management of the material, and heat can be absorbed and stored in a high-temperature environment, so that a good heat insulation effect is provided; the materials such as the modified glass fibers and the basalt fibers are added, and the fibers have good acoustic performance and can effectively reduce noise transmission, so that the sound absorption effect is improved; therefore, the mechanical property of the material is improved, the good durability and stability of the material are ensured, and the long-term reliability of the material is ensured.

The invention relates to the technical field of lithium ion battery fire extinguishing agents, in particular to a lithium ion battery water-based fire extinguishing agent and a preparation process. The water-based fire extinguishing agent for the lithium ion battery is prepared from the following components in parts by mass: 70 to 80 parts of water, 25 to 35 parts of starch grafted ammonium phosphate-montmorillonite compound, 15 to 25 parts of polyhydric alcohol, 5 to 10 parts of saponin, 3 to 5 parts of potassium perfluorobutanesulfonate, 10 to 15 parts of diethylene glycol monobutyl ether, 3 to 5 parts of N, N-diethyl-1, 3-propane diamine, 4 to 6 parts of nano silicon dioxide and sodium carboxymethyl cellulose. The sodium carboxymethyl cellulose accounts for 5-7% of the mass of the starch grafted ammonium phosphate-montmorillonite compound; the starch grafted ammonium phosphate-montmorillonite compound comprises starch, montmorillonite, ammonium phosphate, ammonium persulfate, ethyl acetate and lauryl sodium sulfate. The embodiment of the invention provides a water-based fire extinguishing agent for a lithium ion battery and a preparation process, and aims to solve the problems of electric shock risk and after-combustion risk when the water-based fire extinguishing agent extinguishes the lithium ion battery in the related technology.

The invention relates to the technical field of high-temperature heat storage, in particular to a foundation structure for supporting a high-temperature fused salt storage tank. The foundation structure comprises a concrete foundation layer, a ceramsite layer, a foam glass layer, a calcium silicate layer and a sand cushion layer which are sequentially stacked upwards from the ground. The sand cushion layer is used for making contact with the tank bottom of the high-temperature fused salt storage tank, receiving heat from the tank bottom of the high-temperature fused salt storage tank and conducting the heat downwards. The calcium silicate layer can keep the temperature of the foam glass layer to be lower than the temperature-resistant upper limit value when receiving heat transferred from the sand cushion layer. According to the foundation structure, the heat loss of the foundation structure in the ground direction can be reduced while the cost is not obviously increased, meanwhile, differential settlement is avoided, and the foundation structure is suitable for molten salt materials with the use temperature reaching 650 DEG C or above.

The invention belongs to the technical field of coating preparation, and discloses a nanoparticle modified heavy anti-corrosion material as well as a preparation method and application thereof. The nano-particle modified heavy anti-corrosion material comprises the following components in percentage by weight: 60-80% of a component A, 10-25% of a component B and 10-30% of a first solvent, wherein the total percentage is 100%; the component A comprises the following components in percentage by weight: 45%-60% of a resin solution, 0.5%-5% of graphene oxide, 8%-20% of polyaniline nanofibers, 0.5%-5% of carbon nanotubes, 0.6%-40% of a filler, 0.3%-3% of an additive and 8%-12% of a cosolvent, and the total percentage is 100%; the component B comprises the following components in percentage by weight: 40-60% of polyamide and 40-60% of a second solvent, wherein the total percentage is 100%. The nano-particle modified heavy anti-corrosion material prepared by the invention has excellent salt mist resistance, acid resistance, alkali resistance, good adhesive force and impact resistance.

The invention discloses dry and comfortable antibacterial menstrual period pants and a preparation method thereof, and belongs to the technical field of female hygienic products, and the preparation method comprises the following steps: beta-cyclodextrin and sophocarpidine are utilized to form a superfine capsular inclusion compound, the superfine capsular inclusion compound is adsorbed on the surface of macroporous super absorbent resin to form antibacterial composite resin powder, and the antibacterial composite resin powder is sprayed on the surface of a composite aerogel sheet; when meeting blood, the affinity of water molecules to external hydroxyl groups of cyclodextrin is enhanced, so that the binding force of matrine and beta-cyclodextrin is weakened, and matrine is released; the antibacterial composite resin powder expands when encountering water, compresses and promotes the release of the nano antibacterial inclusion compound loaded on the surface, so that the release of the matrine contained in the antibacterial composite resin powder is accelerated, and a rapid and highly-targeted antibacterial effect is realized; the composite aerogel sheet can improve the resilience force of the menstrual period trousers, has an extremely high specific surface area, a nanoscale hole structure and an extremely low heat conductivity coefficient, and can effectively prevent heat transfer and improve air permeability.

The invention discloses an aerogel felt and a preparation method thereof, a battery and a power utilization device, the aerogel felt is applied to a lithium ion battery, the aerogel felt comprises a main body, the main body is provided with a porous structure, the main body is provided with a first side surface layer and a second side surface layer which are opposite to each other, the phase-change material is at least arranged in the pores of the first side surface layer and the pores of the second side surface layer, the phase-change material is sealed in the pores of the aerogel felt and has a heat storage function, and the finally prepared aerogel felt is high in shape thermal conductivity and large in phase-change latent heat and can effectively prevent heat from being transferred among battery monomers, so that the heat transfer efficiency of the battery monomers is improved. Thermal runaway propagation is inhibited, and the fire risk of the battery module is reduced.

The invention discloses an anti-aging and anti-yellowing foaming polyester material and a preparation method thereof, and relates to the technical field of polyester materials. The anti-aging and yellowing-resistant foamed polyester material is prepared from the following raw material components in parts by weight: 3 to 5 parts of anti-ultraviolet SEBS (Styrene-Ethylene-Butylene-Styrene), 3.6 to 7 parts of triethylamine, 4 to 6 parts of flame-retardant and wear-resistant filler, 100 parts of TPEE (Thermoplastic Polyether Ester Ether), 0.9 to 1.1 parts of polymer wax and 0.6 to 0.8 part of foaming agent, the anti-ultraviolet SEBS is obtained by copolymerizing and grafting an unsaturated benzophenone ultraviolet absorbent, SEBS and maleic anhydride; the flame-retardant and wear-resistant filler is obtained by mixing and reacting carboxylated nano silicon dioxide, pentaerythritol and phosphorus oxychloride; the polymer wax adopts EVA (Ethylene Vinyl Acetate) wax; azodicarbonamide is adopted as the foaming agent; the anti-aging and anti-yellowing foaming polyester material disclosed by the invention is relatively good in mechanical property, anti-aging property, flame retardant property and compression resistance.

The invention discloses a modified CM square electric power corrugated pipe, belongs to the technical field of electric power pipe processing, and aims to solve the technical problem that the burnthrough resistance and the mechanical strength of a square electric power corrugated pipe in the prior art need to be further improved. The corrugated pipe comprises a square pipe and a plurality of corrugated rings arranged outside the square pipe, the square pipe and the corrugated rings are made of a modified CM material, siloxane-enhanced modified chlorinated polyethylene rubber and chlorinated polyvinyl chloride are combined to form a mixed matrix, and the mixed matrix is enhanced by using a composite filler composed of modified inorganic powder and modified glass beads. The tensile property and the impact resistance of the modified CM square electric power corrugated pipe are effectively enhanced, the burn-through resistance and the low temperature resistance of the material are improved, and the modified CM square electric power corrugated pipe is more convenient and more advantageous in practical application by optimizing the structure of the electric power corrugated pipe.

The invention relates to the technical field of food vending machines, in particular to a food vending machine with a self-cleaning function, which comprises a cabinet, a sliding plate is arranged in the cabinet, a receiving box is fixed in the cabinet, a conveyor is arranged on the receiving box, an intercepting mechanism is fixed on the bottom surface of one end of the sliding plate, and the intercepting mechanism comprises a cross beam. A turn-over mechanism is arranged on the outer side of the middle of the conveying belt. According to the sesame seed cake processing device, the intercepting mechanism is arranged on the bottom face of the sliding plate, a plurality of first connecting rods on the intercepting mechanism can intercept sesame seed cakes on the conveying belt, when the conveying belt passes through the sesame seed cakes, disintegrating slag on the side, making contact with the conveying belt, of the sesame seed cakes can be cleaned into the containing box together with the conveying belt, and meanwhile the turning-over mechanism can turn over the sesame seed cakes on the conveying belt; therefore, food residues on the top surface and the bottom surface of the sesame seed cake are fully cleaned, automatic cleaning from the source of the food residues is facilitated, and the cleaning efficiency of the sesame seed cake vending machine is improved.

The invention belongs to the technical field of starch-based adhesive materials, and provides a boiling-water-resistant flame-retardant starch-based wood adhesive as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing starch, water and alpha-amylase, and performing hydrolysis reaction to obtain a starch hydrolysate; mixing the starch hydrolysate and the DIHP aqueous solution, and reacting to obtain an S-DIHP material; and mixing the nano hybrid DE (at) TA with an S-DIHP material to obtain the boiling water-resistant flame-retardant starch-based wood adhesive. The adhesive provided by the invention is prepared through an enzyme catalysis hydrolysis strategy and a hyperbranched cross-linked network strategy, and has excellent boiling water resistance; by adding the nano hybrid DE (at) TA taking polysiloxane as a core and tannic acid as a shell, not only is the adhesive property of the adhesive improved, but also the flame retardance of the adhesive is remarkably enhanced, and the adhesive is suitable for the wood processing industry and is used for replacing a traditional petroleum-based adhesive, so that the environmental pollution is reduced.

The invention discloses bending equipment for refrigeration pipe fitting machining, relates to the technical field of pipe fitting bending, and aims to solve the problems that according to the prior art, the bending angle of a refrigeration pipe fitting is prone to deviation, bending is not accurate enough, the bending effect is poor, the pipe fitting cannot be cut in time, the size of the bent pipe fitting is prone to large errors, and the machining precision is high. In order to solve the problems that in the prior art, pipe fittings need to be additionally cut, and the working efficiency is low, according to the scheme, the pipe fitting bending device comprises an operation table, and a bending mechanism is arranged at the top of the operation table; the bending mechanism comprises a rotating table arranged on the outer wall of the top of the operation table through a bearing gasket, a connecting cylinder fixedly arranged on the outer wall of the top of the rotating table, a bending die connected into the connecting cylinder through a bolt, and a mounting plate. According to the automatic bending device for the refrigeration pipe fitting, the refrigeration pipe fitting can be automatically bent, it is ensured that the bending angle does not deviate, the bending efficiency is improved, the pipe fitting can be clamped, fixed and cut in time, large errors of the size of the pipe fitting are avoided, and the working efficiency is improved.

The invention provides a resource delivery method, system and device based on user information and a storage medium. The method comprises the steps of obtaining user information of different channels; performing data processing on the user information to obtain target user information; establishing a user information database to store target user information and target follow-up role information; distributing the target user information to follow-up equipment of the target follow-up role, so that the follow-up equipment obtains a user demand according to the target user information, and obtains follow-up result information according to the user demand; generating an information report according to the target user information and the follow-up result information, and obtaining first user conversion rates of different channels according to the information report; and optimizing resource delivery of different channels according to the first user conversion rate. By effectively managing the user information, resource allocation can be optimized, invalid resource release is avoided, and the resource utilization rate is improved.

The invention discloses a high-efficiency flame-retardant artificial board, a flame retardant and a preparation method thereof. The flame retardant for the artificial board comprises a polyphosphate compound, ammonium borate, boric acid and delignified biomass cellulose in a mass ratio of 5: (3-5): (2-5): (2-4). According to the flame retardant, by means of the synergistic effect of the polyphosphate compound, ammonium borate and boric acid, the carbonization capacity of an artificial board under the high-temperature condition is remarkably enhanced, a compact carbon layer is formed, therefore, heat and oxygen transfer is effectively prevented, and the flame retardant effect is greatly improved. The oxygen index of the prepared environment-friendly efficient flame-retardant artificial board reaches 37% or above, toxic and harmful gas is not released in the combustion process, and the environment-friendly performance is good. The cellulose is used as a carrier of the flame retardant, and the oxidation resistance of the boric acid is combined, so that the mechanical property of the artificial board is improved, the thermal stability of the artificial board is improved, and the good balance of the flame retardant property and the mechanical property is realized.

The invention relates to the technical field of coatings, in particular to a water-based thermal insulation material containing rare earth elements. The invention relates to a rare earth element-containing water-based thermal insulation material, which is prepared from the following raw materials: 50 to 55 parts of water-based hollow elastic rubber microsphere modified silicone acrylic emulsion, 12 to 15 parts of modified hollow glass microsphere, 7 to 9 parts of rare earth nano thermal insulation agent, 12 to 14 parts of nano TiO2 modified aerogel dispersion liquid, 6 to 8 parts of kaolin, 0.5 to 0.8 part of thickening agent, 0.5 to 0.7 part of dispersing agent, 1.5 to 2 parts of film-forming agent and 1.4 to 1.6 parts of defoaming agent. The rare earth nano heat insulation agent is water-based dispersion slurry of cerium series rare earth oxide, and the rare earth nano heat insulation agent is water-based dispersion slurry of cerium series rare earth oxide. The rare earth element-containing water-based thermal insulation material provided by the invention has the advantages of excellent thermal insulation performance, good adhesive force, environmental protection performance, aging resistance, simple construction process, lower production cost and the like, and has very high practical value and application prospect.

The invention belongs to the technical field of enameled wire processing, and discloses an enameled wire surface lubricating liquid coating device which comprises a coating device body. The lubricating liquid storage chamber is arranged at the top of the coating device body; the winding rollers are movably connected to the bottoms of the two sides of the coating device body in a sleeving manner; and the coating assembly is arranged in the middle of the inner wall of the coating device body. According to the technical scheme, by arranging the spray head, the driven gear and the linkage column, a driving motor is started firstly, so that a front-end output shaft drives a winding roller and a transmission mechanism to move, then a first rotating disc rotates to drive the linkage column to integrally move up and down, then a second rotating disc can be driven to rotate, and a rotating rod rotates synchronously; and meanwhile, the lubricating liquid in the lubricating liquid storage chamber can be guided into the coating frame through the discharging valve, and finally the lubricating liquid is uniformly sprayed and coated on the surface of the enameled wire through rotation of the rotating shell.

The invention discloses a bouncing cup lid unlocked through fingerprints. The bouncing cup lid comprises a cup lid assembly and a fingerprint driving module. The cup cover assembly comprises a turning cover, a cover main body and a rotary cover; the turning cover is hinged to the cover main body; the rotary cover is rotatably clamped at the lower end of the cover main body; a water outlet channel penetrates through the cover main body up and down; the fingerprint driving module comprises a fingerprint identification module and a driving module; the driving module is arranged in the containing cavity of the cover body and comprises a power source assembly, a locking assembly, a battery and an electric control board. After the fingerprint recognition module recognizes and collects fingerprint information of a user, the electric control board compares the fingerprint information, after the fingerprint information comparison is correct, the electric control board controls the power source assembly to move, the power source assembly drives the locking assembly to unlock the turning cover, the rotary cover is connected with the cover body, at the moment, the turning cover is in an unlocking state, and the turning cover is opened. Water can flow out from the water outlet channel; and the screwing cap main body can also drive the screwing cap to rotate.

The invention discloses a railway digital signal cable, and relates to the technical field of cables, the railway digital signal cable comprises a cable body, and the outer surface of the cable body is provided with a protection assembly. When the protective assembly is used, the protective assembly is dragged to a position where the protective assembly needs to be installed, and then one end of the tightening belt is lifted upwards, so that the clamping column is separated from the elastic hole. When the cable is tightened, the tightening sleeve is pinched to wrap the outer surface of the cable body, then the tightening belt is tightened in the direction of the loop side of the hook-and-loop fastener to be tightly wound on the outer surface of the tightening sleeve, and the tightening belt is pressed to enable the clamping column to penetrate through the elastic hole to fix the tightened tightening belt. When the cable body is installed, the fixing clamp is sleeved on the protective sleeve, so that the protective sleeve is not in direct contact with the cable body, the cable body is protected, the cable body is prevented from being abraded by the clamp, the service life of the cable body is prolonged, and the stability of signal transmission is improved.

The utility model discloses a two-in-one anti-theft double-inner casement window capable of enhancing heat insulation and sealing performance, which is provided with a frame, a screen sash, a stainless steel diamond screen and a window sash, the window sash is used for installing glass, and the frame forms a frame body of the casement window. A plurality of glue injection corner brace holes are formed in the frame, so that movable glue injection corner braces are adopted for 45-degree corner combining connection; the glass and the gauze sash are opened towards the indoor direction; a stainless steel diamond gauze is mounted on the gauze fan; the frame 1 is provided with two nylon heat insulation strips and four nylon heat insulation strips, and one waterproof rubber strip, one sealing duckbilled rubber strip and one sealing rubber strip are adopted for lap joint of the frame and the window sash.

The invention relates to the technical field of building coatings, in particular to an aerogel anti-condensation coating and a preparation method thereof, and particularly relates to an anti-condensation coating which is high in binding power, capable of being thinly coated and long in effect and a preparation method of the anti-condensation coating. Comprising the following components: 15-50 parts of aerogel, 10-20 parts of a binder, 0.2-1 part of a dispersant, 0.2-2 parts of a defoaming agent, 0.5-5 parts of a leveling agent, 10-50 parts of a silicone acrylic emulsion, 15-50 parts of a thermal insulation material, 2-16 parts of a coalescing agent and 10-30 parts of deionized water. The aerogel has stable physical and chemical properties, and the porous structure of the aerogel can continuously block the temperature and is not easy to form moisture condensation. Meanwhile, the components of the coating are reasonably matched, and all the components have a synergistic effect, so that the coating can keep a good anti-condensation effect in the long-term use process, the frequency of maintenance and re-brushing is reduced, a metal base material is protected from being easily rusted, and the cost and time are saved.

The present application relates to the technical field of lithium-ion battery fire extinguishing agents, and in particular to a lithium-ion battery water-based fire extinguishing agent and a preparation process. According to mass parts, the lithium-ion battery water-based fire extinguishing agent includes 70 to 80 parts of water, 25 to 35 parts of starch-grafted ammonium phosphate-montmorillonite complex, 15 to 25 parts of polyols, 5 to 10 parts of saponin, 3 to 5 parts of potassium perfluorobutyl sulfonate, 10 to 15 parts of diethylene glycol monobutyl ether, 3 to 5 parts of N, N-diethyl-1,3-propylenediamine, 4 to 6 parts of nano-silicon dioxide, and sodium carboxymethyl cellulose, wherein the sodium carboxymethyl cellulose is 5 to 7% of the mass of the starch-grafted ammonium phosphate-montmorillonite complex; the starch-grafted ammonium phosphate-montmorillonite complex includes starch, montmorillonite, ammonium phosphate, ammonium persulfate, ethyl acetate and sodium dodecyl sulfate. The embodiment of the present application provides a lithium-ion battery water-based fire extinguishing agent and a preparation process to solve the problem of electric shock risk and re-ignition risk when the water-based fire extinguishing agent extinguishes the lithium-ion battery in the related art.

The invention relates to the technical field of wall heat preservation, and particularly discloses a building wall energy-saving heat preservation structure which comprises a wall, a keel frame is arranged on one side of the wall, the wall comprises a bearing mechanism used for installation and a limiting mechanism used for limiting, and a plurality of installation cavities are formed in the keel frame. When the insulation board is replaced, firstly, the decorative board slides out of the limiting groove, then the shifting rod is shifted upwards, the limiting board is driven to move through the connecting rod, the limiting board does not abut against the insulation board any more, at the moment, the damaged insulation board is taken out, then a new insulation board is placed into the mounting cavity, finally, the shifting rod is loosened, and under the elastic force action of the spring, the decorative board is replaced. And the connecting rod drives the limiting plate to move downwards to tightly abut against the heat preservation plate again, replacement of the heat preservation plate is completed, according to the design, in the heat preservation plate replacement process, complex tools and professional skills are not needed, operation is relatively convenient and fast, the working efficiency is greatly improved, and time and labor cost are saved.

The invention provides an aqueous zinc ion battery electrolyte added with a humectant and application of the aqueous zinc ion battery electrolyte. According to the technical scheme, the electrolyte comprises water, zinc salt and a humectant, wherein the humectant binds the water in the electrolyte; the humectant is selected from one or more of a micromolecular humectant and a macromolecular humectant; the macromolecular humectant is selected from one or more of hyaluronic acid, a polysaccharide humectant, a polypeptide humectant and polyethylene glycol; the polypeptide humectant is selected from collagen. The wetting agent has the beneficial effects that the wetting agent has the effects of absorbing moisture, locking water and forming a film, and can be used for constraining water in an electrolyte, inhibiting side reactions in the zinc ion battery, changing the deposition morphology of zinc and guiding uniform deposition of zinc, so that the cycling stability and coulombic efficiency of the zinc ion battery are improved.