104 results about "Moisture permeation" patented technology

The invention discloses an environment-friendly degradable plastic packaging bag and a preparation method thereof, belongs to the technical field of packaging bag preparation, and is used for solving the technical problem that the degradation capability and the mechanical property of an environment-friendly packaging bag in the prior art need to be further improved. According to the invention, the prepared carbonic acid bridged compact polyester is used as a main body skeleton to provide strength and film-forming property, silica acetal hybrid polysaccharide is introduced to form a compact and complex diffusion path inside and reduce gas and moisture permeation, and then active side chain polyamino acid is added to adjust interfacial compatibility and enhance structural stability, so that the film-forming property is improved. Through reasonable combination of the three components, the environment-friendly packaging bag keeps high tensile strength and tearing strength, meanwhile, the barrier property is remarkably improved, and gradual complete degradation is achieved in compost and soil environments.

The invention discloses an epoxy glue tail-attached external potting mold for an engine cable connector, and relates to the technical field of tail-attached cable potting, the epoxy glue tail-attached external potting mold comprises a mold support, a wire passing clamp used for placing a tail-attached cable piece is arranged on the mold support, and the lower end of the tail-attached cable piece penetrates through a potting mold body and a potting mold cover to be connected with a joint connector. The glue pouring mold body and the glue pouring mold cover are arranged in a matched mode, a cavity space enabling epoxy glue to be formed outside the tail attaching cable piece in a thermoplastic mode is formed in the glue pouring mold body and the glue pouring mold cover, and a connector male head is arranged at the end, away from the tail attaching cable piece, of the connector connector. According to the epoxy glue tail-attached external potting mold for the engine cable connector, the mold is simple in structure and high in positioning precision, the problem of bubble residues in the potting process can be avoided, good sealing performance and insulating performance are achieved, it is ensured that the tail-attached cable piece is evenly coated with epoxy glue, the waterproof effect, the moisture permeation blocking effect and the anti-corrosion effect are achieved, and the service life of the tail-attached cable piece is prolonged. And chemical corrosion is resisted.

The invention relates to the technical field of rocky desertification area hydrological process monitoring and soil moisture migration research, and discloses a device and a method for researching the moisture permeation rate of an in-situ rock-soil interface in a rocky desertification area, a water inlet device comprises a water tank, a rotor flow meter and a connecting pipeline, and the water tank is arranged at a position higher than the rotor flow meter; the water outlet device comprises a water inlet, an internal flow stabilizing cavity and a plurality of small water outlet holes uniformly distributed in the length direction, the water inlet is formed in the lower portion of the flow stabilizing cavity and connected with the connecting pipeline, and the small water outlet holes are formed in the upper portion of the flow stabilizing cavity; the bracket is used for fixing the water outlet device at the upper part of the exposed rock surface, so that the small water outlet holes are distributed close to the rock surface; the controllable rock surface flow is stably generated under the complex rock-soil interface condition, a reliable technical platform is provided for in-situ moisture permeation rate measurement, and the technical bottlenecks that an existing device cannot simulate rock surface flow concentration and is difficult to adapt to a heterogeneous interface are overcome.

A transparent display apparatus is provided, which has excellent encapsulation characteristics while reducing a bezel width. The transparent display apparatus includes a display area disposed on a substrate, including a pixel having a transmissive portion, and a non-display area disposed near the display area, having a GIP portion, and a moisture permeation preventing portion disposed between the GIP portion and the display area.

The invention relates to a multilayer release film and a preparation method thereof, and relates to the technical field of release film preparation. The preparation method comprises the following steps: dispersing epoxy acrylate, polyethylene glycol diacrylate and hydroxyethyl acrylate in a solvent, adding a composite photoinitiator, carrying out a reaction in a dark place, adding isophorone diisocyanate to obtain first slurry, coating the surface of a base material, and carrying out an illumination reaction to obtain a bottom layer; mixing polyvinyl alcohol and Ti3C2F to obtain a mixed solution, separating to take a solid phase, dispersing the solid phase in a solvent, mixing the solid phase with a polyamide acid solution to obtain second slurry, and coating the surface of the bottom layer to obtain a transition interlayer; dispersing polyurethane acrylate, polytetrahydrofuran acrylate, allyl laurate and 1-hydroxycyclohexyl phenyl ketone in a solvent, adding hydrogenated diphenylmethane diisocyanate to obtain third slurry, and coating the surface of the transition interlayer with the third slurry to form a surface layer to obtain the multi-layer release film. According to the invention, polyvinyl alcohol-Ti3C2F is introduced to form a physical barrier, moisture permeation is hindered, the moisture resistance of the release film in a humid environment is improved, and the damage of water to the structure and performance of the film is reduced.

The invention relates to a waterproof ceramic tile adhesive and a preparation method thereof, and belongs to the technical field of building decoration materials. The waterproof tile adhesive comprises a composite waterproof agent, wherein the composite waterproof agent comprises active silane-based powder and hydrophobic redispersible latex powder; wherein the mass ratio of the active silane-based powder to the hydrophobic redispersible latex powder is (1: 2)-(2: 1). The preparation method of the waterproof ceramic tile adhesive comprises the following steps: uniformly mixing the raw materials comprising the composite waterproof agent, discharging and packaging to obtain the waterproof ceramic tile adhesive. The waterproof ceramic tile adhesive provided by the invention not only has high bonding strength, good weather resistance and constructability, but also has excellent and lasting overall waterproof performance, can effectively block moisture permeation, and is suitable for various high-humidity and water-immersed environments.

The invention relates to a post-treatment method for a mercury-based II-VI group nanocrystal with a protective layer formed by chemical oxidation, and solves the problems of poor stability and photoelectric property degradation of the mercury-based II-VI group nanocrystal caused by surface oxidation, ligand desorption and environmental sensitivity. An oxide protection layer with the thickness of 1-3 nm is formed on the surface of the nanocrystal, the long-term stability and the photoelectric property of the nanocrystal are improved, and the method comprises the specific steps of centrifugal purification of the nanocrystal, preparation of an oxidizing agent solution, controllable oxidation reaction, functional ligand surface modification and purification treatment. The oxidation layer is ensured to be compact and stable by accurately adjusting the concentration of the oxidant, the reaction temperature and the reaction time. According to the method, oxygen and moisture permeation is effectively blocked, surface defects are reduced, the quantum yield and the photoelectric property are improved, and the method is widely applied to the fields of post-treatment of mercury-based II-VI group nanocrystals and photoelectric devices.

The invention relates to the technical field of packaging paper, and discloses multi-layer moisture-proof packaging paper which comprises an inner layer, a blocking layer and an outer layer, and the inner layer and the outer layer are both made of breathable materials; the raw materials of the barrier layer comprise a plurality of hydrophobic particles and a plurality of hydrophilic particles, the plurality of hydrophobic particles form a three-dimensional network support structure with a plurality of open pores, the plurality of hydrophilic particles are embedded in the open pores, the hydrophilic particles have water absorption expansibility, and the hydrophilic particles are mutually extruded and contacted to form hydrophilic channels penetrating through the barrier layer after absorbing water and expanding; and the ratio of the area of the hydrophilic particles in the inner side surface of the barrier layer to the area of the hydrophilic particles in the outer side surface of the barrier layer is 30-1000. According to the multi-layer moisture-proof packaging paper disclosed by the invention, by virtue of a unique barrier layer structure and an accurate proportion design of hydrophilic particles on the inner and outer side surfaces of the barrier layer structure, an automatic and efficient one-way moisture permeation function is realized; the moisture and air permeability, the environmental friendliness and the long-term fresh-keeping requirement of the contents are difficult to consider at the same time.

The utility model relates to the technical field of lighting equipment, and discloses a lamp tube connector with a waterproof structure, which comprises a connector shell, a lamp tube base is connected onto the connector shell, a threaded ring with an outward thread is arranged on the outer side of the bottom surface of the lamp tube base, and a screw base lower than the threaded ring is arranged in the middle of the bottom surface of the lamp tube base. A threaded groove rotationally connected with the threaded ring is formed in the top face of the connector shell, a screw groove rotationally connected with the screw lamp holder is formed in the connector shell, and a first sealing ring is arranged at the attaching position of the connector shell and the lamp tube base. Double threaded connection is performed on the lamp tube by arranging the threaded ring and the threaded lamp holder, the outer threaded ring provides mechanical fixation, and the inner threaded lamp holder forms secondary locking, so that stress can be dispersed, and a moisture permeation path can be prolonged; and under the cooperation of the sealing ring, the processing tolerance or the deformation gap is filled through elastic compression, so that the waterproof effect is further improved.

The application relates to the field of functional fabric technology and discloses a one-way moisture absorption and sweat releasing double-sided warm-keeping fabric and application thereof. The one-way moisture absorption and sweat releasing double-sided warm-keeping fabric is formed by multi-dimensional weaving of hydrophilic fibers and hydrophobic fibers, the hydrophobic fibers are the inner layer, and the hydrophilic fibers are the surface layer; the hydrophilic fibers are polyester fibers, nylon fibers, spandex or bamboo fibers, and the hydrophobic fibers are heat-sensitive closed-cell foaming fibers. The heat-sensitive closed-cell foaming fibers are prepared by the following method: a glue agent is added into a solvent, dissolved at 70-90 DEG C, and stirred to obtain a resin solution; expandable microspheres, titanium dioxide and silica aerogel are added into the resin solution, and stirred to obtain foaming slurry; the matrix fibers are subjected to surface treatment, then the foaming slurry is coated, and then foaming treatment is carried out to obtain the heat-sensitive closed-cell foaming fibers. The fabric has the one-way moisture absorption and sweat releasing warm-keeping and heat insulation functions through the moisture gradient structure existing in the hydrophilic side and the hydrophobic side, has excellent warm-keeping and heat insulation and air and moisture permeation functions, and can be applied to the field of clothes.

The invention relates to the technical field of dairy product processing, and discloses a milk beverage and a preparation process thereof, the milk beverage comprises the following raw materials by mass: 0.05%-0.75% of skimmed milk powder, 0.05%-0.75% of whole milk powder, 0.15%-1.8% of a compound stabilizer, 0.06%-1.1% of an acidulant, 1.005%-10.02% of a sweetener, 0.01%-0.5% of edible essence, and the balance reverse osmosis water; the raw materials including the skimmed milk powder and the whole milk powder are dissolved through a moisture permeation step and then mixed to form emulsion, and the emulsion and acidizing fluid formed by dissolving an acidulant are subjected to online acidification; and mixing with other raw material solutions, fixing the volume, and filling carbon dioxide to obtain the milk beverage. According to the scheme, the raw materials are combined and added, so that the nutrition of the milk beverage is effectively enriched, and the sour, sour and sweet bubble stimulation taste is provided for consumers; in addition, the precipitation amount and layering of the beverage can be reduced, and the milk beverage with a stable system and a stable taste is provided.

The invention relates to the technical field of seed cultivation and seedling raising, in particular to a seed cultivation device for agricultural product planting, which comprises a box body, an opening and closing door, soil and a water tank, a self-adaptive water quantity adjusting mechanism and a water permeation mechanism are arranged in the box body, the self-adaptive water quantity adjusting mechanism realizes automatic adjustment of water quantity according to soil humidity, and the water permeation mechanism is arranged in the box body. The moisture permeation mechanism is used for pricking soil so that moisture can permeate to the bottom of the soil, the moisture permeation mechanism is in linkage with a soil loosening assembly and a plant spacing calibration assembly, the soil loosening assembly is used for loosening the hardened soil, the drying degree of the soil is in positive correlation with the shrinkage amount of the resin compression block, and the more the resin compression block shrinks, the more the soil is. The larger the downward moving amplitude of the piston and the first rack is, the more the sealing plate is driven by the second rack to rise in the hollow pipe through gear transmission, the more the amount of water entering the first water pipe through the water passing opening in the hollow pipe is, and finally the amount of water sprayed out of the spray head is increased accordingly, so that self-adaptive adjustment is achieved.

The application discloses an airport floor structure, relates to the field of airport facilities, and comprises a soil base layer, a support layer for bearing weight arranged on the top of the soil base layer, a cushion layer for buffering and damping arranged on the top of the support layer, and a plane layer arranged on the top of the cushion layer; mortar layers for isolating moisture are arranged on the top of the soil base layer on both sides of the support layer, a surface layer is arranged on the top of the mortar layers, a plurality of left groove plates are arranged on the top of the surface layer, right groove plates are arranged on one side of the left groove plates, and fixed layers are fixedly arranged on the positions between the soil base layer through holes and adjacent two right groove plates; and fillets for joint sealing are arranged between the support layers and the two mortar layers. The application has the advantages that the floor surface level is discharged, and the water permeation of the soil base layer is effectively isolated.

The utility model discloses a kind of anti-hooking silk super-transparency high-density silk stockings, including a silk pantyhose, the silk pantyhose is by one single yarn warp-weft integrated weaving, and the single yarn is the spandex cover yarn of a double-layer twisting structure.The utility model is closely high twist structure to make yarn surface more smooth, fiber holds more closely, the fabric structure gap distribution formed is more uniform, with visual high permeability, good ventilation and moisture permeation effect on wearing;With the toughness of double-layer twisting, the probability of silk hooking and silk extraction can be greatly reduced, and the anti-hooking and wear resistance are improved;High twist makes yarn more crisp, silk stocking fabric woven is not easy to pill, touch more delicate smooth;Double-layer covering balances the slight stiffness feeling brought by high twist, maintains moderate softness, is both in shape and comfortable when wearing.In addition, the adsorption of tight yarn structure to dye is more stable, can let silk stocking dyeing more uniform, reduce the local color difference caused by yarn loose, make color more full and lasting.

This invention relates to the field of image recognition technology, and more particularly to an environmental control method based on visual monitoring of watermarked eggs. The method includes the following steps: acquiring translucent images at various times and identifying the watermark region; acquiring the total projected area of ​​the egg and calculating the proportion of the watermark area at each time; constructing a neighborhood window to determine the spatial gradient modulus and calculating the normalized permeability of the watermark region at the current time; acquiring the edge of the watermark region and dividing it into several arc segments, determining the non-uniformity coefficient at each time; predicting the saturation risk after a set time period, and generating an environmental regulation increment based on the saturation risk and the time change rate of the normalized permeability for environmental regulation control. This invention characterizes the eggshell moisture permeation process through multidimensional visual indicators and establishes a mapping relationship from biological phenotype evolution to environmental regulation by combining a prediction model, effectively reducing the lag probability of environmental regulation and improving the accuracy of poultry house microclimate regulation.

The invention discloses a refractory mortar sheet-shaped prefabricated body as well as a preparation method and a construction method thereof, and belongs to the technical field of refractory mortar. The refractory mortar flaky preform is prepared from the following raw materials: 70 to 80 percent of porous bauxite clinker, 5 to 10 percent of quartz powder, 5 to 10 percent of silica powder, 0.5 to 1.0 percent of isothiazolinone derivative, 3 to 6 percent of passivated aluminum powder, 0.1 to 0.3 percent of tricalcium aluminate and 3 to 5 percent of yellow dextrin. 10-15% of a polyvinyl alcohol solution is added; the mass ratio of polyvinyl alcohol to water in the polyvinyl alcohol solution is 1: (18-20); the preparation method comprises the following steps: uniformly mixing the raw materials, pressing into slices and curing. The refractory mortar sheet-shaped prefabricated body has a rich microporous structure, has heat insulation property and moisture permeability, also has good forming strength and good plasticity and high-temperature performance after wetting, realizes a construction mode of on-site unpacking and ready-to-use, greatly improves the construction efficiency, and is suitable for high-efficiency masonry of industrial kiln masonry.

A partition member for a total heat exchanger with excellent heat exchange efficiency, and a method for producing a total heat exchanger. The partition member includes a hydrophobic porous substrate and a hydrophilic material in which an air permeability is 10,000 seconds or more and a moisture permeability under conditions of 20° C. and 65% RH is 2,500 g / m2·24 hours or more, and a method for producing the partition member. The method includes coating a solution containing polymer polysaccharide fine fibers with a fiber width of 1 to 1,000 nm onto a hydrophobic porous substrate and then drying.

The invention discloses anti-freezing concrete, which is prepared from the following ingredients in parts by mass: 300 to 600 parts of binding materials, 700 to 900 parts of fine aggregates, 800 to 1000 parts of coarse aggregates, 2 to 8 parts of additives, 140 to 170 parts of mixing water and 10 to 30 parts of anti-freezing microspheres. The anti-freezing microspheres are esterified-crosslinked modified starch microspheres of which the surfaces are coated with modified silicon dioxide layers. The modified starch-based anti-freezing microspheres are doped into the concrete, heating curing is performed after final setting, the concrete is promoted to form independent closed micropores, the overall porosity of the concrete is reduced, the pore structure of the concrete is optimized, the external moisture permeation path is reduced, and then the freeze-thaw resistance, the mechanical property and the like of the concrete are effectively improved; besides, the pore structure based on the anti-freezing microspheres is formed in the heating and curing process and is not influenced by traditional stirring, construction, climate, materials and the like, and the freeze-thaw resistance of the concrete is more stable; a new thought can be provided for the preparation of the high-performance anti-freezing concrete.

The utility model discloses a water-blocking power cable, and relates to the technical field of power cables. The waterproof power cable comprises a power cable main body, the power cable main body comprises a conductor layer, the outer surface of the conductor layer is fixedly connected with an inner insulating layer, the outer surface of the inner insulating layer is fixedly connected with a waterproof enhancement layer, and the outer surface of the waterproof enhancement layer is fixedly connected with a functional layer. According to the utility model, a strong waterproof barrier is provided through the double-layer water-blocking design, the high-temperature-resistant water-blocking mica tape of the first water-blocking layer can initially and efficiently block moisture permeation by virtue of a compact structure formed by overlapping and wrapping, the mica component expands when encountering water and further strengthens the water-blocking effect, and the polypropylene water-blocking tape of the second water-blocking layer further enhances the water-blocking effect when encountering water. Due to the high water absorption, residual water penetrating through the first water-blocking layer can be rapidly absorbed, the first water-blocking layer and the second water-blocking layer expand into gel to block a channel, the problem that a traditional single-layer water-blocking material is prone to failure is solved through cooperation of the two materials, and the reliability of the cable in a humid environment is greatly improved.

The present application relates to a curable composition for encapsulating material and an encapsulating material for organic light emitting device comprising the same, and more particularly, can provide a curable composition for encapsulating material and an encapsulating material for organic light emitting device comprising the same, which are excellent in adhesion, adhesion reliability, stability over time at room temperature and high temperature, durability and conformability, while being very outstanding in moisture permeation prevention properties.

The invention discloses a wet preparation method of a microfiber Yangbuck composite material for waterproof and breathable shoes. The wet preparation method is characterized by comprising the following steps: step 1, preparing slurry; step 2, pretreating the base cloth; step 3, coating the slurry; step 4, wet solidification; step 5, water washing treatment; step 6, waterproof treatment; step 7, drying, foaming and shaping; and 8, cooling and rolling. According to the invention, a micron-sized porous structure is formed through a wet solidification process, and through cooperation with the synergistic effect of the pore-forming agent, the air permeability of the material is more than or equal to 500g / (m < 2 >. 24h), and meanwhile, the hydrostatic pressure is more than or equal to 30kPa, so that external moisture permeation is effectively blocked, moisture in shoes can be quickly discharged, and the core pain point that the traditional synthetic leather for shoes is waterproof and airtight or breathable and not waterproof is thoroughly solved.

The utility model relates to the field of solar panels, in particular to a solar panel with a flexible film, which comprises a battery piece, a mounting hole, a junction box and a supporting assembly. The waterproof light-transmitting layer and the waterproof supporting layer are arranged on the two sides of the battery piece, so that moisture permeation is effectively prevented; the supporting assembly and the solar panel form a stable triangular structure together, so that the supporting stability is remarkably enhanced; the supporting assembly is fixed to the mounting hole through the bandage, so that the mounting steps are simplified, and the mounting efficiency is improved. When the solar panel does not need to be supported, the supporting assembly is easily removed, so that the solar panel is directly attached to the mounting surface to work. The inclination angle of the solar panel is changed by adjusting the length of the second supporting piece so as to obtain the optimal illumination receiving effect. The problem that an existing flexible solar panel lacks effective waterproof and flexible support is solved.

The utility model discloses an aluminum-plastic longitudinally wrapped waterproof cable, which relates to the technical field of waterproof cables and comprises three cells, a filling layer wrapped outside the three cells, an expansion layer wrapped outside the filling layer, an aluminum-plastic composite belt wrapped outside the expansion layer, an armor layer wrapped outside the aluminum-plastic composite belt and a polyolefin sheath layer wrapped outside the armor layer. A coating layer is sprayed outside the sheath layer, and a plugging mechanism is movably arranged outside the sheath layer; the aluminum-plastic composite belt plays a role in water insulation and barrier and prevents external moisture from permeating; the expansion layer can absorb water and expand when water enters the aluminum-plastic composite belt, gaps are filled, a secondary waterproof defense line is formed, the waterproof effect is further enhanced through the nanometer waterproof coating sprayed on the sheath layer, the coiled material is endowed with the self-cleaning function, the surface of the sheath layer is not prone to being contaminated by dust and dirt, and the service life of the coiled material is prolonged. And through cooperation of the arc plate, the winding shaft and the tightening belt, the damaged sheath layer can be protected, and the waterproof performance of the cable is further enhanced.

The invention discloses a high-temperature-resistant damp-heat-resistant epoxy structural adhesive and a preparation method thereof, and belongs to the technical field of high-performance composite materials. According to the invention, fluorine-containing modified nano silicon dioxide and organic intercalation modified nano montmorillonite cooperate with each other, so that a water blocking path of chemical hydrophobic blocking and physical lamellar structure network blocking is constructed. A perfluoroalkyl chain grafted on the surface of the fluorine-containing modified nano silicon dioxide can intercept water; the organic intercalated montmorillonite is peeled into nano lamellas, a lamellar structure network is formed in an epoxy structural adhesive matrix, a lamellar labyrinth effect is formed, moisture permeation is hindered, hydrogen ions in a humid and hot environment can be adsorbed, and hydrolysis of a cross-linked network is inhibited. And finally, after the epoxy structural adhesive is subjected to damp-heat aging at 85 DEG C and 85% RH for 1000 hours, the retention rate of tensile shear strength is greater than or equal to 81.3%. The invention has the advantages of strong raw material adaptability and high industrial feasibility, and can be applied to multiple scenes such as building curtain walls, automobile structures, electronic packaging and the like.

The waterproof tail clamp is applied to the connector and comprises a main body and a waterproof column body, the main body is provided with a through hole penetrating through the main body, the waterproof column body is fixedly arranged in the through hole, the main body is further provided with threads, a sealing table is annularly arranged at the position, close to the threads, of the main body, and the diameter of the sealing table is larger than that of the threads. A through hole penetrates through the center of the main body, and the waterproof column body is stably installed in the through hole. Threads are processed on the periphery of the main body to facilitate tight screwing with a connector. And a sealing table is annularly arranged on the main body close to the thread, and the diameter of the sealing table is specially enlarged and exceeds the thread part, so that the sealing effect is enhanced. During installation, the waterproof tail clamp is in butt joint with the connector by rotating the threads on the main body, and the waterproof column body goes deep into the connector, so that the interior of the connector becomes a closed space, and moisture permeation is effectively blocked. Meanwhile, the sealing table is tightly attached to the connector shell, a reliable waterproof barrier is formed, it is ensured that the connector can still work stably in the humid environment, and efficient waterproof protection is achieved.

The application belongs to the field of high polymer materials, and discloses a double-trigger programmable degradable PHA composition and a preparation method thereof. A cured film structure formed by the composition comprises, from outside to inside, an outer protective layer taking polyhydroxyalkanoate as a base material and introducing a reversible cross-linking network, a trigger layer configured with humidity and ion double-trigger microcapsules, and an inner functional layer carrying functional additives. The cured film can maintain low permeability and mechanical stability before application. After application, under the synergistic action of specific moisture and ions, the trigger layer is activated, causing the cured film to have a stepwise increase in moisture permeability and form through holes within a preset time window. Finally, the whole disintegrates through physical structural failure. The technology can be applied to the field of seed coating, and the low-temperature process below 50 DEG C adopted by the technology can ensure the activity of the biological base material, realizing the unity of stable protection before application and on-demand disintegration after application.

The invention discloses a preservation device and refrigeration equipment, and relates to the technical field of preservation, the preservation device comprises an upper cover plate, a storage container and a moisturizing assembly, the upper cover plate, the storage container and the moisturizing assembly are arranged, the storage container is arranged below the upper cover plate and defines a preservation space with the upper cover plate, and the storage container is movably arranged relative to the upper cover plate; the moisturizing assembly is arranged on the upper cover plate and / or the storage container, the moisturizing assembly communicates with the fresh-keeping space, and the moisturizing assembly can adjust the moisture permeation amount according to the humidity of the fresh-keeping space. According to the fresh-keeping device, the relatively closed fresh-keeping space can be formed through the storage container and the upper cover plate, and the moisture preservation assembly can adjust the moisture permeation amount according to the humidity in the fresh-keeping space, so that the humidity in the fresh-keeping space is stabilized; the situation that the humidity in the fresh-keeping space is too low or too high, and consequently the long-term fresh-keeping effect of food in the fresh-keeping space is affected is avoided.

The invention belongs to the technical field of building construction, and particularly relates to a near-zero-energy-consumption building outer wall plinth structure and a construction method thereof.The near-zero-energy-consumption building outer wall plinth structure comprises a wall body and an outer wall heat preservation layer pasted to the wall body and further comprises a waterproof roll and an extruded polystyrene board layer, and the outer wall heat preservation layer comprises a rock wool heat preservation layer and a polystyrene board heat preservation layer which are sequentially connected from top to bottom; the waterproof coiled material extends along the polystyrene board heat preservation layer and is fixedly adhered to the surface of the rock wool heat preservation layer, the polystyrene board heat preservation layer is provided with a thinning area, and the extruded polystyrene board layer is embedded in the thinning area and is fixedly adhered to the waterproof coiled material. The construction process comprises the steps of base layer treatment, polystyrene board heat preservation layer pasting, waterproof roll laying, extruded polystyrene board layer pasting and underground waterproof protection layer construction, and the method has the beneficial effects that the heat preservation and waterproof structure of the plinth joint is optimized, the moisture permeation path is effectively blocked, and the heat preservation continuity and structural durability of the plinth part are ensured.

The utility model discloses a waterproof bathroom cabinet which comprises a waterproof bathroom cabinet body and a fixing plate, the waterproof bathroom cabinet body is fixedly connected to the fixing plate through a fixing assembly, and a drawing cabinet body is arranged in the waterproof bathroom cabinet body; wherein the waterproof bathroom cabinet body comprises a bottom plate, side plates are respectively mounted on two sides of the bottom plate, a rear plate and a cabinet door are respectively mounted between the two side plates, and an upper cover plate is mounted at the tops of the side plates and the cabinet door. According to the waterproof bathroom cabinet, combined connection is adopted, use of screws is reduced, moisture erosion is resisted, damage caused by damp is greatly reduced, articles in the cabinet are effectively protected, the drawing cabinet body is arranged in the waterproof bathroom cabinet, the external cabinet body can conduct double blocking on moisture, moisture permeation to the interior is reduced, and the service life of the waterproof bathroom cabinet is prolonged. And the cabinet body is prevented from being damaged by humid environment.

The utility model discloses an anti-mildew log board, which relates to the technical field of log boards and comprises a base layer and an insect-proof layer. The top surface of the base layer is uniformly coated with a first adhesive layer, the bottom surface of the base layer is uniformly coated with a second adhesive layer, the base layer is formed by pressing oak wood chips and maple wood chips, the first adhesive layer and the second adhesive layer are both phenolic resin adhesives, the top surface of the first adhesive layer is bonded with a first reinforcing layer, the bottom surface of the second adhesive layer is bonded with a second reinforcing layer, and the top surface of the second adhesive layer is bonded with a second reinforcing layer. The first reinforcing layer and the second reinforcing layer are moisture absorption particle boards, the top surface of the first reinforcing layer is coated with a first anti-permeation layer, according to the anti-mildew log board, the anti-mildew effect of the log board can be improved through the synergistic effect of the nano-silver coating and the chitosan microcapsule slow-release preservative, and the anti-mildew effect of the log board is improved; the humidity balance of the log board can be guaranteed through the arranged breathable micropores, moisture permeation is effectively isolated through cooperation of the breathable micropores and the anti-permeation layer, and then the service life of the log board is prolonged.