1396 results about "Water resistance" patented technology

In some embodiments, the inventive subject matter is directed to a modular waders system that includes: a main waders garment and a covering unit. The covering unit may have multiple functions expressed in one or more layers, the functions being selected from the group of: durability, waterproofness or water resistance, breathability, insulation, cushioning, thermoregulation, and 2-way or 4-way elasticity. The waders system includes a coupling system that makes the covering unit easily donned or removed by the user as conditions dictate. In some embodiments, the inventive subject matter is directed to waders or other garment having a frontside portion with a mobile device holder comprising a flap, the holder configured to contain or couple to a handheld imaging device having a camera, the flap having one edge portion coupled to the other side so that the flap can reposition from a first position to a second position.

The invention relates to the field of functional building materials, and discloses a preparation process of a building backing plate and a product. The invention discloses a preparation process of a building backing plate. The preparation process comprises the following steps: S1, cutting an extruded sheet, and flattening the surface of the extruded sheet; s2, placing fiber gridding cloth on one surface of the extruded sheet, coating the fiber gridding cloth with an interface treating agent, and shaping; s3, the surface of the fiber gridding cloth is coated with mortar emulsion, and drying is conducted; s4, turning over, placing fiber gridding cloth on the other surface of the extruded sheet, coating the fiber gridding cloth with an interface treating agent, and shaping; and coating the mortar emulsion on the surface of the fiber gridding cloth, drying and maintaining to obtain the building backing plate. The preparation process is simple and easy to operate, and the prepared building backing plate has good water resistance, moisture resistance, heat insulation, sound insulation and flame retardance, is not prone to separation and cracking after being used for a long time, and is suitable for humid environments such as toilets or kitchens.

The invention discloses reactive compatible ACR-PHA core-shell latex and application thereof, and belongs to the field of polymer chemistry and material science. The latex comprises composite particles with core-shell, gradient core-shell, raspberry-shaped or Janus heterostructure, interfaces of ACR phase and PHA phase of the latex are connected through covalent bonds, and the compatibility problem of physical blending is fundamentally solved. The latex particles have a Z-average particle size of 80-400 nm, a PDI of less than or equal to 0.30, and a minimum film formation temperature (MFFT) of-10 to 12 DEG C. The coating prepared by the invention has excellent high-humidity barrier stability (WVTR is less than or equal to 65g / m.d), low-temperature rapid heat sealability, water resistance, oil resistance and complete recoverability, does not contain PFAS, is an ideal alternative scheme of a traditional PE (Polyethylene) spraying film, and is suitable for the fields of food packaging paper, paper cups, bowls and the like.

The invention discloses a high-water-resistance photovoltaic module non-glass front plate and a preparation method thereof. The non-glass front plate comprises a transparent fluorine film, a cut-off type transparent flame-retardant adhesive film and a transparent water-blocking composite plate; the transparent water-blocking composite board comprises a transparent transition layer, a transparent PET film, a water-blocking film and a transparent priming coat which are compounded in sequence; the cut-off type transparent flame-retardant adhesive film contains an ultraviolet light absorber; a transparent transition layer in the transparent water-blocking composite board is compounded with the cut-off type transparent flame-retardant adhesive film; the transparent bottom coating is provided with protruding points protruding out of the surface of the coating. The high-water-resistance photovoltaic module non-glass front plate has the advantages of high weather resistance, high light transmittance, light weight, water resistance and flame retardance, is suitable for distributed power generation scenes, and can effectively overcome the defects that a glass back plate is heavy in weight, not easy to install and high in infrastructure requirement.

The invention discloses a cationic core-shell PHA nano-emulsion reinforcing agent as well as preparation and application thereof, and belongs to the technical field of papermaking chemicals. The problems that a traditional wet strength agent is poor in environmental protection property and difficult to recycle, and a conventional bio-based material needs high-temperature curing and is high in energy consumption are solved. According to the reinforcing agent, low-MFFT bio-based polyhydroxyalkanoate is used as a core, and a positive ion shell layer with strong positive charges is wrapped outside the core. The method has the core advantages that extra high-temperature curing is not needed, the film can be efficiently formed under the conventional 105 DEG C drying condition, and the energy consumption is remarkably reduced; meanwhile, high dry and wet strength and water resistance are achieved, the treated paper has excellent re-pulping recycling suitability, and the industrial pain point that traditional wet strength paper is difficult to recycle is solved.

The invention discloses a process for improving anodic oxidation consistency of an anode foil for an aluminum electrolytic capacitor, and relates to the technical field of capacitor manufacturing, and the process comprises the steps of multi-stage washing, etching, feeding, multi-stage formation, intermediate treatment, first post-treatment, roasting, second post-treatment, stability treatment, drying, rolling, inspection and packaging. Wherein the multi-stage formation adopts three-stage oxidation of low-temperature and low-current, medium-temperature and medium-current and low-temperature and high-current, so that an oxidation film forms a base layer, a growth layer and a high-density protection layer which are uniformly overlapped layer by layer, and the consistency and compactness of the oxidation film are synergistically improved through dynamic water washing, air drying and temperature field and fluid field regulation and control technologies; the oxide film is repaired through first post-treatment, the pore size of the oxide film is reduced, and the compactness of the oxide film is improved; and high-temperature roasting is combined, and a second post-treatment step is carried out, so that the oxidation film forms an aluminum oxide crystal structure which is stable, high in hardness and compact in structure, and the water resistance and reliability of the finished anode foil are enhanced.

The invention discloses an environment-friendly solvent-free epoxy fireproof coating and a preparation method thereof, and belongs to the technical field of fireproof coatings, the environment-friendly solvent-free epoxy fireproof coating comprises a component A and a component B, the component A is prepared from the following raw materials in parts by weight: 30 to 40 parts of film-forming agent, 3 to 5 parts of reactive diluent, 30 to 70 parts of intumescent flame-retardant system, 12 to 16 parts of fireproof filler, 0.5 to 1.1 parts of anti-settling agent, 0.8 to 3 parts of modified inorganic nano filler and 0.2 to 0.6 part of defoaming agent; the component B comprises the following raw materials in parts by weight: 6-14 parts of a curing agent and 0.6-1.2 parts of a curing agent accelerator. The fireproof coating provided by the invention belongs to an environment-friendly coating, has excellent peel strength, fireproof performance, heat insulation performance and water resistance, is small in dosage, and greatly saves the application cost of the coating.

The invention relates to an anti-corrosion treatment process for a ship lock steel structure. The anti-corrosion treatment process comprises the steps that S1, the surface of the ship lock steel structure is pretreated; s2, the surface of the pretreated steel structure is coated with an anti-corrosion coating containing graphene modified zinc powder to serve as primer; s3, the surface of the primer is coated with super-strong epoxy paint, intermediate paint is formed, and the super-strong epoxy paint is amine adduct cured high-solid epoxy finish paint; s4, the surface of the intermediate paint is coated with a polyurethane coating to serve as finish paint; by selecting proper paint as primer, intermediate paint and finish paint, one scheme is suitable for all areas and can resist corrosion for a long time, and finally the problem that different areas need to be constructed in different areas is solved. According to the anti-corrosion scheme, the adhesive force is high, the shielding property is high, the water resistance is good, and the ultraviolet resistance is high.

The present invention belongs to the field of plating technology and specifically relates to an ALD-Parylene composite film layer, a deposition device, and a deposition method thereof. By reserving a vacuum gap between a heating plate and the outer wall of a cavity, a barrier is formed to isolate the heating plate from heat conduction to the outside of the cavity as the vacuum degree in the cavity increases during the reaction process, thereby avoiding heat loss caused by direct contact and damage to seals, thereby improving the coating effect. The ALD reaction and the Parylene reaction are combined in the same reaction chamber, and different pipeline designs and time-sharing control are used to form a composite film layer structure of alternating ALD film layers and Parylene film layers on the surface of the substrate. The density of the ALD film layer is conducive to enhancing the water resistance of the film layer and sealing the defects of the original Parylene film layer. The softness of the original coating is maintained, and it will not break when subjected to impact and thermal shock, which is conducive to improving the stability of the film layer.

The utility model relates to a multifunctional waterproof portable power supply, which effectively solves the technical problems that the existing external power supply is inconvenient to carry, not waterproof and single in power supply mode, and comprises a power supply box, a box cover is rotatably and hermetically connected onto the power supply box, a plurality of batteries are fixed in the power supply box, and a circuit board is connected above the plurality of batteries. According to the utility model, the sealing of the internal power supply is realized through the power box which is buckled in a sealing manner and the sealing plate which is installed in a sealing manner, so that the effects of convenience in carrying and water resistance are achieved; and various types of power supply ports are formed in the sealing plate, so that various power supply use conditions are met, and the use is more convenient.

The invention provides a water spaceship main hull with small head water resistance, tail water assisting and a rudder braking function. The water spaceship main hull is composed of a square main cabin section with the length of a, the width of b and the depth of c, a main hull head with the top view sharp and round and the side view round corner, a main hull tail with the top view sharp and round and the side view triangular rear view inverted square groove, the brake rudder and a water tumbler drain hole. The device has the effects of energy conservation, safety and high speed. The appearance of the main ship body has a unified resistance-reducing and energy-saving safety standard and does not follow the meaning of a designer any more.

The invention discloses a method for calculating the opening and closing force of a miter gate based on the stroke acceleration of a hoist. According to the method, relevant parameters of the ship lock miter gate are obtained, the hydrodynamic resistance moment caused by the water level difference during opening and closing operation of the miter gate is calculated through a hydrodynamic resistance moment calculation formula considering the stroke acceleration of a miter gate hoist, then the maximum total resistance moment during opening and closing operation of the miter gate is calculated, and finally the opening and closing force of the miter gate is calculated. According to the calculation method, the dynamic water resistance moment can be calculated by directly using the gate submerging water depth, the gate door leaf width, the water level difference value and the stroke acceleration of the hoist, so that the opening and closing force is calculated, the process of converting the water level difference into the pressure intensity is omitted, and the influence of the stroke acceleration of the hoist is increased; and a more convenient calculation method is provided for estimating whether the maximum opening and closing force for opening and closing the gate exceeds the rated capacity of the hoist or not when the operation mode of the gate of the ship lock is changed.

The invention provides an anti-fog self-cleaning titanium dioxide composite sol coating and a preparation method thereof.Pre-crystallized titanium dioxide nanoparticles are prepared through a sol-gel method and mixed with silicon dioxide sol to obtain composite sol, a film can be formed on the surface of a glass and plastic substrate material, and the coating of a porous structure is obtained; the titanium dioxide is pre-crystallized and can be uniformly dispersed in an aqueous solution, and the surface of the titanium dioxide has a large number of hydrophilic groups such as hydroxyl, so that the conditions of ultraviolet pretreatment, high-temperature calcination and the like are not needed, and the coating has super-hydrophilic anti-fog self-cleaning performance after being formed into a film in manners of spraying, pulling, roller coating and the like, and can be applied to a heat-labile plastic surface; and the whole process has the advantages of low cost, large-area treatment and the like. The coating is high in water resistance, good in weather resistance, good in adhesive force on the surfaces of various materials and not prone to falling off.

The invention discloses an installation method of a novel double-row steel sheet pile cofferdam structure, which comprises the following steps of: installing I-shaped steel at the center of a set position of two rows of Larsen steel sheet pile groups, and respectively fixing two ends of the I-shaped steel in a pair of river levees; an outer Larsen steel sheet pile group is tightly installed on the side, away from water flow, of I-shaped steel, meanwhile, a plurality of first pile groups are arranged in an inner cavity of the side, away from the I-shaped steel, of the outer Larsen steel sheet pile group at intervals, and the bottom ends of the first pile groups are inserted into a foundation to be used for supporting the outer Larsen steel sheet pile group. An inner Larsen steel sheet pile group is installed on the side, close to water flow, of the I-shaped steel in an abutting mode, meanwhile, a plurality of second pile groups are arranged in an inner cavity of the Larsen steel sheet pile group between the inner Larsen steel sheet pile group and the I-shaped steel at intervals, and the bottom ends of the second pile groups are inserted into the foundation to be used for supporting the inner Larsen steel sheet pile group. The cofferdam structure installed through the installation method has good water flow impact resistance, anti-seepage performance and supporting stability.

The invention relates to the technical field of layered materials, and discloses a low-temperature-resistant polyurethane transfer film and a preparation method thereof. The multi-layer structure heat transfer film with a glue layer and a polyurethane-based transfer layer is prepared, and a photo-curing transfer layer material containing polyurethane acrylate containing polyether, polybutadiene blocks and organic silicon branched chains with good low-temperature resistance and sulfhydrylation graphene oxide with excellent far infrared performance is prepared; the low temperature resistance and the water resistance of the heat transfer film are effectively improved.

A method for screening a key stratum for overburden separation grouting in a coal mine includes: selecting overall analysis objects based on coal mine planning; conducting a primary screening of the analysis objects based on a scope of a subsidence zone; conducting a secondary screening of the analysis objects based on whether there is an old goaf; determining key stratums for screened-in analysis objects, prioritizing the key stratums based on a number of separation spaces and a range of a separation height, setting a safe height based on a diversion fissure zone, and prioritizing numbers of groutable layers based on a potential separation space and a water resistance of a rock stratum; prioritizing the groutable layers based on a fault impact; and comprehensively analyzing grouting priority levels of the key stratums based on results of the three prioritizations, and grouting separation layers of the key stratums in order of priority.

Disclosed herein is an adjustable brightness flying suitable for both recreational and professional uses. The flying disc may comprise a light strip that illuminates when in use. In some embodiments, one or more properties of the light strip can be dynamically adjusted based on the intended application, environmental lighting conditions, and / or the player's preferences. The flying disc may have high-impact resistance, sand resistance, and / or water resistance so that it can be used for different applications and in different environments such as rough terrain, dusty environments, and / or in water. The flying disc may automatically detect a motion state and turn the light strip on or off accordingly. The illumination allows players to use the flying disc for different applications and in different environments, such as in low-lighting conditions. In some embodiments, the brightness may be adjusted and on-time of the light strip may be manually set or adjusted by a player.

The invention discloses a connector with an in-place plugging detection function. The connector comprises a plug and a socket, the plug comprises a plug shell assembly, a pin base assembly and a clamping ring; the needle base assembly is composed of an upper needle base, a lower needle base, an interface sealing gasket, a contact pin and a detection lifting pin; the socket comprises a socket shell, a hole base assembly, a sealing ring and a clamping ring; the hole base assembly is composed of an upper hole base, a lower hole base, a jack assembly, an adapter pin and a spring needle. When the plug and the socket are not plugged, the device can detect that the plug and the socket are in a non-plugging state through a loop connected by the jack assembly and the spring needle; when the plug and the socket are plugged in place, equipment can detect that the plug is in place by detecting a loop connected between the lifting pin and the spring needle, so as to detect the plugging state of the connector. And based on a shell structure of a GJB599B series III, the high-voltage switch cabinet has higher salt mist resistance, strong vibration resistance, water resistance, moisture resistance, dust resistance and the like.

The invention belongs to the technical field of 3D printing and flexible high-hydrophobicity self-luminous life jackets, and particularly relates to a flexible high-hydrophobicity self-luminous life jacket and a preparation method thereof. A self-luminous waterborne polyurethane emulsion of a hydrophobic modified energy-storage long-afterglow luminescent material is synthesized, the prepared self-luminous waterborne polyurethane emulsion is used for coating and post-processing a thermoplastic polyurethane elastomer (TPU) flexible life jacket part formed by SLS, and a luminous coating permeates into micro-gaps in the surface of the TPU part and is attached to the surface. And a firmly attached self-luminous coating is formed after curing, so that the hydrophobic property of the TPU life jacket product is obviously improved, and the self-luminous function in a dim and dark environment is also realized. The problems that a traditional fluorescent material is low in luminous intensity, incapable of continuously emitting light, poor in water resistance and the like are solved, and excellent high-hydrophobicity self-luminous performance is obtained on the premise that the original SLS forming process characteristics of the TPU life jacket are not changed and the mechanical property of the TPU life jacket is reserved.

The invention belongs to the technical field of automobile coatings, and particularly relates to an automobile original factory exterior decoration water-based black paint and a preparation method thereof. The invention provides automobile original factory exterior decoration water-based black paint. The automobile original factory exterior decoration water-based black paint is prepared from components in parts by mass as follows: 25-50 parts of water-based polyurethane resin, 5-15 parts of water-based polyester resin, 1-5 parts of amino resin, 0.5-1 part of a first wetting agent, 0.1-0.5 parts of a defoaming agent, 3-5 parts of a thixotropic agent, 3-10 parts of a solvent, 10-20 parts of water-based black slurry, 1-3 parts of a pH regulator, 1-3 parts of a functional aid and 20-30 parts of water. The functional auxiliary agent comprises polyethylene glycol and diacetone acrylamide. The automobile original factory exterior decoration water-based black paint provided by the invention has excellent comprehensive properties such as excellent high-speed shearing resistance, stable construction performance, high-pressure water gun flushing resistance, boiling resistance, excellent heat storage performance, acid resistance, alkali resistance, gasoline resistance, diesel oil resistance, engine oil resistance, high-speed shearing resistance, water resistance, excellent adhesive force and the like.

The utility model discloses a water cooling plate with an embedded pipeline and a cooling system, and the water cooling plate can be applied to the cooling system for heat exchange to realize heat dissipation. The water cooling plate comprises a base plate and a pipeline, a pipeline groove matched with the pipeline in shape is formed in the base plate, and the pipeline is machined through the pipe bending technology and sequentially comprises a water inlet, a water inlet section, an acting section, a water outlet section and a water outlet from the liquid flowing direction. Wherein the water inlet section, the acting section and the water outlet section are fixed in the pipeline groove, and the water inlet and the water outlet extend out of the side face of the base plate. Due to the fact that the pipeline of the water cooling plate is formed by machining a complete pipeline, all parts in the flow channel are uniform and smooth, water resistance can be effectively reduced, meanwhile, dead zones in the pipeline are avoided, and heat dissipation efficiency is improved. And meanwhile, the pipeline is tightly attached to the base plate, so that the heat transfer efficiency can be ensured. In addition, due to the fact that the pipeline is a complete pipeline, the pressure resistance of the pipeline is higher.

The utility model discloses an underwater fish gathering lamp which comprises a radiator, the radiator is a hollow sectional material radiator, lamp beads are attached to the outer surface of the radiator to form a light source plate, a glass tube is arranged outside the radiator and the light source plate in a sleeved mode, and a closed cavity is formed between the outer wall of the radiator and the inner wall of the glass tube. The hollow part of the profile radiator is a radiating channel, two ends of the radiator and two ends of the glass tube are connected through elastic rubber rings and end covers in a sealing mode, and gaps are filled with pouring sealants. According to the underwater fish gathering lamp, the hollow sectional material radiator is adopted, after water flow enters the hollow radiating channel and is heated, the density of the water flow becomes light and rises, the chimney effect similar to that in air is formed, water resistance can be reduced, and rapid heat exchange can be achieved.

The invention discloses a high-wear-resistance double-sheath automobile high-voltage cable, and particularly relates to the technical field of automobile high-voltage cables, and the high-wear-resistance double-sheath automobile high-voltage cable specifically comprises the following steps: S1, preparing a conductor; s2, coating an inner insulating layer; s3, setting a shielding layer; s4, constructing an inner sheath and a middle layer; s5, adding a fireproof layer; s6, cross-linking the outer sheath; and S7, performance testing. The cable is excellent in performance, the double-layer sheath structure and the cross-linked polyolefin outer layer are adopted to enhance wear resistance and tear resistance, friction and external force in a complex environment in a vehicle can be effectively dealt with, chemical corrosion resistance and water resistance are improved, the cable can resist damage of chemical substances and water, and temperature adaptability is good. The advantages of silica gel and cross-linked polyolefin are combined, the heat resistance is improved, thermal aging is retarded, the flame retardant property is good, the fire risk is reduced, the insulating property is improved, the electromagnetic shielding effect is improved, signal transmission is guaranteed, the stability is high, and the cable is highly suitable for new energy automobiles through pressure resistance and wear resistance tests.

The utility model relates to the field of automobile electrical systems, and discloses a positive wire harness with waterproof protection, which comprises a wire harness body, two ends of the wire harness body are movably sleeved with wire harness clamping sleeves, the outer ends of the two wire harness clamping sleeves are fixedly provided with two fixing blocks, the four fixing blocks are provided with clamping grooves, and the clamping grooves are connected with the wire harness body. And connecting rods are slidably arranged at the inner ends of the opposite sides of the four fixing blocks, a connecting block is fixedly arranged at the upper end of the wire harness clamping sleeve, a protective shell is fixedly arranged at the upper end of the connecting block, and a movable door is hinged to the front end of the protective shell through a torsion spring. According to the utility model, the wire harness is subjected to waterproof treatment, so that the waterproof performance of the wire harness can be effectively improved, the wire harness can work normally in a humid severe environment, the environmental adaptability of the wire harness is improved, the risks of short circuit, electric leakage and the like are reduced, the safety of the wire harness is improved, and the wire harness is made of a multi-layer structure, so that the influence of chemical corrosion and high-temperature environment can be effectively resisted; and the service life of the wire harness is prolonged.

The present application relates to an electronic pump flow feedback calibration method and system, and to the technical field of water pumps, a power calculation step, calculating the input power value of the motor, a standard establishment step, establishing a standard operation plane of the water pump according to a water pump of a performance standard, evenly setting a plurality of different water resistances therein, and obtaining a curve K1-Kn, adding a constant speed curve of a standard performance water pump to the operation plane, and the intersection of the constant speed curve and the water resistance curve is the steady-state operation point of the standard performance water pump at a speed of Ln under a Kn water resistance, and obtaining the operation parameters of the water pump at this steady-state operation point; a fitting step, fitting according to data, obtaining a standard flow equation O; a calibration step, obtaining an observed flow value B through the standard flow equation O, obtaining an actual flow value C, obtaining a flow deviation value ΔQ=C-B, and correcting the standard flow equation O with reference to the flow deviation value ΔQ to obtain a new standard flow equation N. The present application has the advantage of being able to reduce errors.

The invention relates to the technical field of coatings, and discloses a polysilazane-graphene composite electrical equipment insulating and pressure-resistant protective coating and a preparation method thereof. The flame-retardant coating is prepared from the following raw materials in parts by mass: 30 to 50 parts of polysilazane, 3 to 5 parts of telomer, 1 to 3 parts of synergist, 4 to 5 parts of modified silicon dioxide, 4 to 5 parts of modified graphene, 1.5 to 2 parts of multiwalled carbon nanotube, 0.5 to 2 parts of modified zinc oxide, 1 to 2 parts of fluorocarbon surfactant and 130 to 230 parts of tetrahydrofuran. By introducing the telomer, the adhesive force of the coating on a rusty surface is effectively improved, and the properties of high temperature resistance, insulation and pressure resistance, flame retardance, water resistance, ice condensation resistance and the like are enhanced; by introducing the synergist, the modified silicon dioxide, the modified graphene, the multi-walled carbon nanotubes and the modified zinc oxide, the protection capability is further improved. Therefore, the coating disclosed by the invention is excellent in comprehensive protection performance, can meet the long-term operation requirement of power equipment in a complex and severe environment, and is wide in application prospect.

The invention discloses a high-transparency environment-friendly PE composite film and a preparation method thereof, and relates to the field of PE composite films. The back face of the explosion-proof film is fixedly connected with a waterproof film, the back face of the waterproof film is fixedly connected with a reinforcing layer, and the back face of the reinforcing layer is fixedly connected with a nylon film. The explosion-proof film enhances the impact resistance of the high-transparency environment-friendly PE composite film and improves the stability of the high-transparency environment-friendly PE composite film, the waterproof film can resist water, and the reinforcing layer is transparent, odorless, tasteless, non-toxic, good in impact resistance and tearing strength, grease-resistant, good in water resistance, acid resistance and alkali resistance, and good in corrosion resistance and corrosion resistance. The nylon film is a very tough film, has good transparency, good gloss, tensile strength and high tensile strength, also has good heat resistance, cold resistance, oil resistance and organic solvent resistance, and is excellent in wear resistance, puncture resistance, softness and oxygen resistance.

The invention discloses a strong-stain-resistant radiation refrigeration coating and a preparation method thereof, and relates to the field of radiation refrigeration, in particular to the strong-stain-resistant radiation refrigeration coating and the preparation method thereof. The invention aims to solve the technical problem of poor radiation refrigeration effect caused by poor weather resistance, water resistance, stain resistance and color retention of the existing radiation refrigeration coating. The radiation refrigeration coating with strong stain resistance is mainly composed of a filler and modified water-based aldehyde ketone resin. The coating prepared by the invention has strong stain resistance, stable and lasting high sunlight reflectance and atmospheric window emissivity, more importantly, the coating prepared by the invention has low surface energy after forming a film, has high water resistance and self-stain resistance, really realizes that pollutants cannot be attached, and has no pollution to the environment. The radiation refrigeration device can be applied to a relatively severe environment to realize long-term stable radiation refrigeration, and has an ideal application prospect in the fields of energy sources, aerospace and buildings with harsh requirements.

The utility model relates to the technical field of carton structures, in particular to a waterproof and moistureproof coating carton structure, which comprises a carton body and is characterized in that at least two pairs of oppositely arranged double-layer folding cover plates are arranged at the top of the carton body, soft sealing strips are arranged on the long edges of the periphery of the top of the carton body, a moistureproof lining partition plate is arranged in the carton body, and the waterproof and moistureproof coating carton structure is arranged in the carton body. According to the utility model, a multi-layer structure is adopted to realize omnibearing water resistance and moisture resistance, the surface of the box body is coated with a polyurethane waterproof coating, and the top of the box body is provided with a double-layer folding cover plate and a sealing strip to reinforce sealing; honeycomb PP plastic partition plates are arranged inside to achieve dry and wet isolation. The bottom adopts a waterproof base matched with an arc-shaped diversion trench to discharge accumulated water; a disposable humidity sensing label is arranged to monitor humidity in real time; the cover plate is formed by compounding craft paper and PE coated paper, so that the cover plate is high in strength and moisture-proof; the handle holes are provided with double-layer reinforcing ribs to improve the bearing capacity. The structure integrates waterproof, moisture-proof and load-bearing functions and the like, and meets the use requirements of complex environments.

The invention discloses a raw material of an ardealite-based geopolymer cementing material, the ardealite-based geopolymer cementing material as well as a preparation method and application of the ardealite-based geopolymer cementing material, and relates to the technical field of building materials. The ardealite-based geopolymer cementing material is prepared from the following raw materials: ardealite powder, an active admixture and an alkali activator, wherein the active admixture comprises at least one of steel slag powder and red mud powder; the alkali activator comprises water glass, sodium sulfate, silicon slag and calcium lignosulphonate. According to the technical scheme, the ardealite powder is used as a raw material, the active admixture is added to improve the later strength and water resistance of the ardealite cementing material, and the compound alkali activator is added to enable the hydration degree of the ardealite and the active admixture to be more complete, so that the performance of the cementing material is further improved. The ardealite cementing material prepared from the raw materials of the ardealite-based geopolymer cementing material provided by the invention can be used for solving the problems of poor water resistance, low strength and poor durability of the existing ardealite cementing material.