5168 results about "Moisture absorption" patented technology

The invention discloses a hydrophobic-hydrophilic Janus water collecting film and an efficient preparation method thereof, and belongs to the field of water collecting materials. An electrostatic spinning process is adopted, and a hydrophobic polymer is accurately deposited on the surface of a hydrophilic substrate in the form of a nanofiber array, so that the Janus composite membrane with an asymmetric wetting gradient structure is successfully constructed. The unique double-sided wettability difference drives the liquid drops to realize directional transmission, and the core mechanism of the liquid drops is derived from capillary force regulation and control caused by interfacial wetting potential energy difference. The Janus membrane shows excellent performance in the aspect of air moisture trapping, the ultra-fast moisture absorption characteristic and the surface regeneration capacity are achieved, and compared with a traditional single-layer hydrophilic membrane, the water collecting efficiency is remarkably improved by 110%. A one-step forming process is adopted for preparation, the diameter of the nanofibers is controllable, complex post-treatment procedures are not needed, and energy consumption required by equipment is low. The high-performance water collecting film has important application value in the fields of atmospheric water taking in arid regions, dehumidification of precise instruments and the like.

The invention relates to regenerated cellulose fiber as well as a preparation method and application thereof. Comprising the following steps: dissolving a cellulose raw material in a solvent; adding a pore-forming agent, a dispersing agent and a cross-linking agent, mixing, and carrying out vacuum defoaming; spinning: enabling the stock solution trickles to sequentially pass through a first coagulating bath, a second coagulating bath and a third coagulating bath; the first coagulating bath is an acidic solution, so that a hollow structure is formed in the fiber; forming a nano-scale pore structure on the outer layer of the fiber in the second coagulating bath; the acid introduced by the first coagulating bath and the solvent introduced by the second coagulating bath are replaced by the third coagulating bath through solvent exchange, and meanwhile, the fibers are gelatinized to form a three-dimensional network structure; and drafting, drying, curling and winding the nascent cellulose fiber to obtain the regenerated cellulose fiber. The technical problem to be solved is how to enable the regenerated cellulose fiber to have a unique structure of internal hollow macropores and external nanoscale pores, and improve the thermal insulation performance, air permeability and hygroscopicity of the fiber. The mechanical property is excellent, the preparation method is simple, and the cost is low.

The invention relates to the technical field of textiles, and discloses a cool and washable bio-based nylon 56 fabric and a preparation method thereof. The preparation method of the cool and washable bio-based nylon 56 fabric comprises the following steps: loading modified nano aluminum oxide on modified aluminum nitride microchips to obtain a composite cool material; nylon 56, an ethylene-methyl acrylate-glycidyl methacrylate terpolymer, polypentamethylene guanidine hydrochloride and a composite cool feeling material are subjected to blending extrusion and melt spinning, and then the bio-based nylon 56 fabric is woven. Mixing the composite modified boron nitride and ethanol to obtain finishing liquid; spraying the finishing liquid on one side of the bio-based nylon 56 fabric, and drying to obtain the cool washable bio-based nylon 56 fabric. The cool and washable bio-based nylon 56 fabric disclosed by the invention has excellent cool feeling, antibacterial property, washable property, moisture absorption property and unidirectional perspiration property.

The invention provides a Janus polylactic acid fiber membrane for cooling and a preparation method of the Janus polylactic acid fiber membrane. The method comprises the following steps: S1, synthesizing silicon dioxide nanoparticles; s2, dissolving silicon dioxide nanoparticles, a surfactant and polylactic acid in an organic solvent to obtain an electrostatic spinning solution A; s3, uniformly dissolving polylactic acid to obtain an electrostatic spinning solution B; s4, preparing an inner layer of the Janus fiber membrane; and S5, preparing the Janus polylactic acid fiber membrane. According to the method disclosed by the invention, the introduction of the silicon dioxide nanoparticles and the spectral selective regulation and control of the fiber diameter enable the polylactic acid fiber membrane to have high infrared emissivity and high sunlight reflection capability, and the wetting gradient of the fiber membrane can be used for rapidly conveying water from the inner layer to the outer layer. The fiber membrane not only has excellent radiation refrigeration effect and rapid moisture absorption and sweat releasing capability, but also has good biocompatibility and degradability, the preparation process is simple, and the fiber membrane is an individual cooling material with wide application prospect.

The utility model is suitable for the technical field of household appliances, and provides a drying module and clothes processing equipment, the drying module comprises a base assembly and a moisture absorption and exhaust system, the base assembly comprises a base and an upper cover which are detachably connected, the base comprises a bottom plate and a first side plate arranged on the bottom plate, and the upper cover is connected with the end face of the first side plate; the moisture absorption and exhaust system comprises a moisture absorption and exhaust shell and a moisture absorption and exhaust part rotationally arranged in the moisture absorption and exhaust shell, at least one part of the moisture absorption and exhaust shell and the moisture absorption and exhaust part are arranged in the main drying air duct, and the rotating central axis of the moisture absorption and exhaust part is parallel to the air direction in the main drying air duct. At least part of the moisture absorption and exhaust part in the drying module is arranged in the main drying air duct, the rotating central axis is parallel to the wind direction of the main drying air duct, the drying module is high in wind passing efficiency and small in wind resistance, and a complex isolation sealing structure is not needed between the main drying air duct and the moisture absorption and exhaust system. The clothes processing equipment has the advantages of being high in drying speed and low in energy consumption.

The invention discloses a low-voltage switch power distribution cabinet, and relates to the technical field of power distribution cabinets. Comprising a cabinet body, a dehumidification channel is arranged at the inner bottom of the cabinet body, one end of the dehumidification channel extends to the outside of one side of the cabinet body, an inclined block plug is arranged in the other end of the dehumidification channel, and a through hole is formed in the inclined block plug. Water in air can be effectively removed through a demisting plate and moisture absorption silica gel, wet air is prevented from entering the cabinet body, the wet air can be filtered through a filter screen, dust is prevented from entering the cabinet body, and the moisture absorption silica gel can be dried and repeatedly used through a heating pipe; the moisture absorption silica gel drying cabinet prevents hot air from entering the cabinet body in the process of drying the moisture absorption silica gel, wraps the dehumidification channel through the heat insulation cylinder, prevents heat of the heating pipe from being transmitted to the interior of the cabinet body through the dehumidification channel, and greatly reduces faults of electrical elements in the cabinet body caused by high heat or humid air.

The utility model is suitable for the technical field of household appliances, and provides a moisture absorption and exhaust system, a drying module and clothes processing equipment, the moisture absorption and exhaust system comprises a moisture absorption and exhaust shell and a rotatable moisture absorption and exhaust part arranged in the moisture absorption and exhaust shell, and the moisture absorption and exhaust part comprises a moisture absorption part and a desorption part; a first opening and a second opening which are communicated through a moisture absorption part are formed in the end faces, along the two axial sides of the moisture absorption and exhaust part, of the moisture absorption and exhaust shell, and an air inlet duct part and an air outlet duct part which are located on the two axial sides of the desorption part and communicated through the desorption part are further arranged on the end faces, along the two axial sides of the moisture absorption and exhaust part, of the moisture absorption and exhaust shell. The outer air guide face gradually inclines towards the desorption part in the direction facing the central axis of the moisture absorption and exhaust part and is used for guiding air in the main drying air channel to reach the moisture absorption part of the moisture absorption and exhaust assembly and / or guiding air flowing out of the moisture absorption part, it is avoided that air vortexes are generated in the main drying air channel, wind energy loss is caused, the air passing speed of the moisture absorption and exhaust system is guaranteed, and the service life of the system is prolonged. The water desorption efficiency is ensured, the energy consumption is reduced, and the drying efficiency is improved.

The invention discloses rotating wheel drying and dehumidifying equipment with a moisture content monitoring function, the dehumidifying equipment comprises a bottom frame, a drying material barrel, a humidity tester, a box body and an air path assembly, the bottom frame is fixedly connected with the drying material barrel and the box body, the drying material barrel is fixedly connected with the humidity tester, the humidity tester is arranged at the bottom of the drying material barrel, and the box body is fixedly connected with the drying material barrel. The box body is fixedly connected with the gas path assembly, the gas path assembly comprises a drying gas path, the drying gas path comprises a return air filter and a drying electric heater, and the return air filter and the drying electric heater are both connected with the drying material barrel through pipelines; the invention relates to the technical field of drying and dehumidifying equipment, which can ensure continuous dehumidification, uninterruptedly and continuously output dry air, treat large-air-volume and high-humidity air, expand the range of a moisture absorption area, prolong the adsorption time, improve the single-time adsorption effect and ensure that the situation of dehumidification leakage is avoided. The moisture of the dried material is measured through infrared rays, and pollution and damage caused by contact measurement are avoided.

The invention discloses a plant leaf imitating hydrogel composite material and a preparation method thereof, and belongs to the field of bionic composite materials. The preparation method comprises the following steps: firstly, preparing printing paste by compounding a coloring agent, printing a fabric to obtain a green fabric capable of simulating spectral characteristics of green peaks and red edges of plant leaves, and simulating fence tissues and skeletons in a leaf structure by using the green fabric; then taking a biological material polyvinyl alcohol (PVA) as a base material, adding a monomer with strong hygroscopicity, a cross-linking agent and an initiator, and blending to prepare a hydrogel prepolymer solution; and finally, pouring the hydrogel prepolymer solution into a mold containing the green fabric for copolymerizing, so that hydrogel is directly formed on the surface of the fabric and in pores, and the plant leaf imitating hydrogel composite material is obtained. The material gets rid of dependence on moisture absorption salt, and has the advantages of stable water absorption and simulation effects, good durability and the like.

The invention discloses a preparation method of lyocell fibers with antibacterial, heat-storage and temperature-regulation functions. The preparation method comprises the steps of pulp oxidation, phase change microcapsule preparation and fiber spinning post-treatment. The preparation method comprises the following steps: firstly, preparing graphene oxide dispersion liquid and phase change microcapsules with proper particle sizes, oxidizing cotton pulp to form a stable cross-linking effect with an antibacterial extract, then dissolving and co-spinning the cotton pulp into the lyocell fiber with the antibacterial, heat-storage and temperature-regulation functions, and weaving the fiber into a fabric which has the properties of repelling mosquitoes, absorbing moisture, ventilating, regulating temperature and storing heat, so that the antibacterial, heat-storage and temperature-regulation functions are realized. Meanwhile, excellent antibacterial performance and washing performance are achieved. According to the preparation method of the lyocell fiber with the antibacterial, heat-storage and temperature-adjusting functions, provided by the invention, the temperature-adjusting and antibacterial effects are lasting, the preparation process is green, simple and convenient, industrial production is facilitated, and the lyocell fiber can be widely applied to the fields of close-fitting household textile articles, medical textile articles and the like; wide market application prospects are realized, and certain market requirements are met.

The invention discloses a preparation method and application of a novel ionized water gel-based moisture power generation material. The material is composed of a carbon coating fabric, ionized water gel and a patch metal electrode. Wherein the nano carbon black is used as a conductive filler of the hydrogel and can enhance electric energy output by promoting functional group dissociation and ion migration. The high-hygroscopicity sea salt in the hydrogel can enhance the capture and transmission capability of the material on water molecules in the atmosphere, and ensures the continuous power output capability of the moisture power generation material. Due to the design of the zigzag dry-wet interface, the wettability between the hydrogel and the carbon black coating can be improved, the moisture absorption rate is increased, the contact area is increased, and therefore the power generation power is improved. The metal patch electrode can ensure the stability of long-term power generation of the material, and can be customized to reduce the contact resistance. A moisture power generation device prepared from the material can be used as a passive energy supply device and is suitable for the fields of self-powered sensors, wearable electronic equipment and the like.

The utility model is suitable for the technical field of household appliances, and provides a moisture absorbing and discharging system, a drying module and clothes processing equipment, the moisture absorbing and discharging system comprises a moisture absorbing and discharging part, a moisture absorbing and discharging shell and a second driving part, the moisture absorbing and discharging part is arranged in the moisture absorbing and discharging shell, and a first opening and a second opening are formed in the moisture absorbing and discharging shell; the first opening and the second opening are used for exposing different parts of the moisture absorbing and discharging part respectively, the second driving part is fixed to the side, provided with the first opening, of the moisture absorbing and discharging shell and connected with the moisture absorbing and discharging part, the second driving part is used for driving the moisture absorbing and discharging part to rotate, and the second driving part deviates from the first opening in the radial direction; the shielding area of the second driving part to the first opening can be reduced, the drying airflow of the moisture absorption and exhaust part is prevented from being shielded, the moisture absorption and exhaust part has the larger air passing area and adsorption area, the air speed loss is reduced, and the clothes processing equipment is high in drying efficiency and low in energy consumption.

To provide a compound which is usable for preparing a cured product that suppresses deterioration of dielectric characteristics by moisture absorption, and a resin composition, a prepreg, a resin film, a metal-clad laminate, a printed wiring board and a semiconductor package which use the same.SOLUTION: A compound contains an indene ring, a vinylbenzyl group, and an aromatic ring-containing group which has 6 or more carbon atoms and has no polymerizable carbon-carbon double bond, wherein the vinylbenzyl group and the aromatic ring-containing group are directly bonded to the indene ring, respectively.SELECTED DRAWING: None

The invention relates to the technical field of synthetic fibers, in particular to a high-elasticity textile fiber and a preparation process thereof. The high-elasticity textile fiber is prepared from the polyurethane-polyamide elastomer and the modified diatomite master batch through melt spinning, drafting and winding. According to the invention, hydroxyl-terminated polydimethylsiloxane is used as polyol, and the molar ratio of the polyurethane prepolymer to the polyamide prepolymer is controlled, so that the prepared polyamide-polyurethane elastomer slice has good heat resistance; the molar ratio of isocyanate to polyol and the molar mass ratio of caprolactam to adipic acid are controlled, so that the prepared textile fiber is excellent in mechanical property; 2, 2-dimethylolpropionic acid is used for a chain extension reaction, the molar ratio is controlled, the moisture regain of the prepared textile fiber is 8.58%, and the moisture absorption is high; the diatomite is modified by the quaternary ammonium salt compound, and the addition proportion is adjusted, so that the prepared spinning fiber has good antibacterial performance.

The invention belongs to the technical field of functional fibers, and discloses a moisture-absorbing and sweat-releasing composite special-shaped chinlon 6 fiber and a preparation method and application thereof.The section of a skin layer of the moisture-absorbing and sweat-releasing composite special-shaped chinlon 6 fiber is in a three-leaf shape or a cross shape or a five-leaf shape, and the section of a core layer of the moisture-absorbing and sweat-releasing composite special-shaped chinlon 6 fiber is round; the preparation method comprises the following steps: by taking chinlon 6 slices as a core layer raw material and chinlon 6 absorbing and discharging master batches as a skin layer raw material, forming by adopting a skin-core composite spinning process to obtain fibers, sequentially soaking the fibers in a weak acid bath, a weak alkali bath and a clear water bath, taking out and drying to obtain the moisture-absorbing and sweat-releasing composite special-shaped chinlon 6 fibers, the chinlon 6 suction and discharge master batch is obtained by blending raw materials including chinlon 6 slices, boron nitride and calcium carbonate, and then melting, extruding and granulating through a double-screw extruder; according to the application, the prepared moisture absorption and sweat releasing composite special-shaped chinlon 6 fiber can be woven into a fabric. According to the invention, the mechanical property of the fiber is ensured, the moisture-conducting and sweat-discharging performance of the fiber is improved, and the sweat-discharging requirement of a human body after strenuous exercise can be met.

The invention relates to the technical field of water treatment agent preparation and environmental governance material processing, in particular to polymeric ferric sulfate and a preparation method thereof.The preparation method comprises the steps that steam condensation recycled water of a thermal power plant of an aluminum factory is mixed with ferrous sulfate and concentrated sulfuric acid to form a reaction solution, oxygen is introduced for an oxidative polymerization reaction, and a liquid intermediate is generated; gradient cooling is carried out on the liquid intermediate to control the molar ratio of ferric ions to hydroxyl, and a porous solid precursor is formed through concentration and closed aging; crushing the precursor, performing graded drying by adopting a rotary kiln and flash drying, and synchronously spraying a hydrophobic modifier to reduce the surface hydroxyl activity; the powdery product is secondarily dried in a nitrogen inert environment, and moisture absorption and agglomeration are inhibited. The invention solves the problems of mixed crystal forms, delayed release of effective components and secondary pollution in the traditional process. The obtained product is uniform in crystal form, concentrated in particle size distribution, remarkably improved in dissolution rate and storage stability, and suitable for black and odorous water body treatment and industrial sewage treatment.

The invention relates to an aerosol moisture absorption and activation process observation system and an observation method thereof. The aerosol moisture absorption and activation process observation method comprises the following steps: collecting sample gases under different humidity conditions, and carrying out particle size screening on the sample gases to respectively obtain aerosols with different particle sizes; measuring scattering coefficients of the aerosols with different particle sizes under different humidity conditions; calculating scattering moisture absorption growth factors of the aerosols with different particle sizes according to the scattering coefficients, and performing inversion calculation on the scattering moisture absorption growth factors so as to obtain moisture absorption, water content, volume concentration and surface area concentration of the aerosols; according to the scattering coefficients corresponding to the aerosols with different particle sizes in the environment state, the dry state critical particle sizes of the aerosols with the dry state increased to 1 micrometer and 2.5 micrometers through water vapor condensation and the scattering moisture absorption growth factor of the aerosols with the environment state ranging from 1 micrometer to 2.5 micrometers are calculated in an inversion mode, and the effective supersaturation ratio of the cloud mist is obtained through inversion. And the aerosol moisture absorption and activation process observation system is arranged according to the aerosol moisture absorption and activation process observation method.

The invention relates to the technical field of multi-layer composite fabrics, and discloses a moisture-absorption antibacterial layered composite fabric and a preparation method thereof. The preparation method comprises the following steps: carrying out melt spinning on polyamide and an antibacterial agent to prepare the antibacterial polyamide fiber; blending antibacterial polyamide fibers, cotton fibers and special-shaped section polyamide fibers, and knitting to obtain a lining fabric crude product; blending the antibacterial polyamide fiber and the modified cotton fiber, and knitting to obtain a surface fabric crude product; respectively padding the surface fabric crude product and the lining fabric crude product in the finishing liquid to obtain a surface fabric and a lining fabric, and compounding the surface fabric and the lining fabric to obtain the moisture-absorbing antibacterial layered composite fabric. The composite fabric has excellent antibacterial performance and good moisture absorption performance.

The utility model is suitable for the technical field of household appliances, and provides a drying module and clothes processing equipment, the drying module comprises a moisture absorption and discharge system and a heat pump system, the moisture absorption and discharge system comprises a moisture absorption and discharge part and a moisture absorption and discharge shell, one axial end face of the moisture absorption and discharge shell is provided with a first opening, and the other axial end face of the moisture absorption and discharge shell is provided with a second opening; a first opening is formed in one axial end face of the moisture absorbing and discharging shell, a second opening is formed in the other axial end face of the moisture absorbing and discharging shell, the first opening and the second opening are communicated through the moisture absorbing and discharging part in the axial direction of the moisture absorbing and discharging part, and a first heat exchanger of the heat pump system is arranged on the upstream of the first opening in the wind direction. The second heat exchanger is arranged on the downstream of the second opening and used for exchanging heat with air which passes through the moisture absorption and exhaust part and is used for drying clothes, the air can vertically penetrate through the moisture absorption and exhaust part, the moisture absorption and exhaust part has a larger air passing area and is used for absorbing moisture, the loss of the air speed is reduced, and the dehumidification efficiency and the drying efficiency are improved.

The invention relates to the field of dehumidification control, in particular to a control method, device and equipment of a heat recovery rotating wheel dehumidification system and a storage medium. The method comprises the following steps: collecting real-time temperature and humidity parameters of a target indoor area, carrying out temperature and humidity position distribution interpolation calculation, and constructing a temperature and humidity distribution fluctuation diagram; performing indoor and outdoor humidity difference calculation and dehumidification demand prediction according to the temperature and humidity distribution fluctuation diagram to obtain a dehumidification demand prediction result; full-cycle operation state monitoring is conducted on the heat recovery rotary wheel dehumidification system, and the dehumidification load intensity of a moisture absorption area and the temperature recovery efficiency of a regeneration area are obtained; historical information of a runner material is extracted based on a dehumidification system operation log, the effective adsorption ratio and regeneration efficiency of the material are dynamically estimated, and a dehumidification performance attenuation index is generated. The dehumidification energy consumption is minimized, and the efficient and comfortable indoor adaptive dehumidification effect is achieved.

The invention discloses a high-moisture-absorption cool-sense chinlon 6 master batch and a fiber and a preparation method thereof, and belongs to the technical field of chemical fibers. The preparation method comprises the following steps: respectively crushing and grinding chinlon 6 powder, a moisture absorption modifier, cool powder, an antioxidant and a dispersing agent, mixing to prepare mixed powder, and carrying out quantitative feeding, melting and plasticizing, screw transmission and shearing, water-cooling pelletizing, vibration screening and forced air drying to prepare the high-moisture-absorption cool chinlon 6 master batch. The preparation method comprises the following steps: uniformly mixing dried high-moisture-absorption cool-sense chinlon 6 master batches and chinlon 6 slices, metering, mixing, extruding and melting, spraying out through a special-shaped hole spinneret plate to form tows, sucking monomers, bundling, oiling, stretching, sizing, and finally winding and spooling to obtain the high-moisture-absorption cool-sense chinlon 6 fiber. The preparation method disclosed by the invention is simple in process, the moisture regain of the prepared high-moisture-absorption cool-feeling chinlon 6 fiber can reach 5-8%, meanwhile, the high-moisture-absorption cool-feeling chinlon 6 fiber shows cool feeling and good air permeability and comfort, and a woven fabric is soft, skin-friendly and smooth in hand feeling.

The invention relates to the field of cooling of human body protective clothing, in particular to a cooling fabric based on phase change microcapsules. The cooling fabric comprises a polyester fiber layer, a phase change microcapsule layer and a PTFE waterproof breathable film layer. The polyester fiber layer is made of skin-friendly polyester fibers, has excellent moisture absorption and sweat releasing performance and can improve wearing comfort. The phase-change microcapsule layer is formed by uniformly embedding microcapsules coated with a phase-change material into the textile structure, and absorbs heat and generates phase change when the environment temperature rises, so that the temperature of the fabric is reduced; the PTFE waterproof breathable film layer has waterproof and breathable functions, can prevent external liquid from permeating, allows water vapor to permeate, and enhances environmental adaptability. By optimizing the spinning method of the phase-change microcapsules, the phase-change heat exchange efficiency can be improved while the air permeability of the fabric is kept, and the cooling performance of the fabric at high temperature is ensured. The fabric can be widely applied to high-temperature work clothes, outdoor sportswear and intelligent temperature control textiles, and has the advantages of being high in temperature adjusting capacity, comfortable, breathable and the like.

The invention discloses super-hydrophobic high-thermal-stability piperazine pyrophosphate and a preparation method thereof.The super-hydrophobic high-thermal-stability piperazine pyrophosphate comprises piperazine pyrophosphate, the surface of piperazine pyrophosphate is coated with a vesicle structure, and the vesicle structure is a self-assembly structure obtained after alcoholysis reaction of a polysulfide silane compound and piperazine pyrophosphate. According to the sulfur-containing silane material with piperazine pyrophosphate coated with the vesicle structure, piperazine pyrophosphate has super-hydrophobic performance due to the vesicle structure, super-hydrophobic durability is achieved, good water resistance and extremely low moisture absorption can be kept in a high-humidity environment, and the problem that piperazine pyrophosphate powder absorbs moisture and is agglomerated can be solved. The vesicle structure has the effects of blocking heat and substance transfer and reducing the thermal oxidation rate of PAPP, so that the piperazine pyrophosphate provided by the invention also has excellent thermal stability and final char forming performance, and is beneficial to reducing the dosage of the piperazine pyrophosphate in a flame-retardant high polymer material.

The invention discloses a process for preparing a polyester fiber fabric by regenerating polyester waste bottle flakes, belongs to the technical field of polyester fiber fabric processing, and aims to solve the technical problem that the moisture absorption and quick drying performance, friction resistance and pilling resistance of the polyester fiber fabric in the prior art need to be further improved. The method comprises the following steps: adding polyester waste bottle flakes into a pulverizer, pulverizing, sieving with a 60-mesh sieve to obtain polyester regenerated powder, and pretreating the polyester regenerated powder to obtain pretreated polyester powder; composite polyester is prepared from modified polysiloxane enhanced copolyester containing nylon 6 and polyvinyl alcohol blocks, and then the porous composite polyester fiber is prepared by taking polyvinyl alcohol as a pore forming agent, so that the moisture absorption and quick drying performance of the polyester fiber fabric is effectively improved, the wearing experience of the polyester fiber fabric is enhanced, and the service life of the polyester fiber fabric is prolonged. The wear-resistant and anti-pilling performance of the polyester fiber fabric is also improved.

The invention provides a photovoltaic inverter for a solar photovoltaic module, and belongs to the field of photovoltaic inverters. Comprising a shell, a mounting seat is fixedly connected to the inner surface of the shell, a power module and a control module are fixedly connected to the outer surface of the mounting seat, ventilation grooves are symmetrically formed in the outer surface of the shell, and a dehumidification assembly is arranged on the inner side of the shell and comprises a partition plate fixedly connected with the lower end of the inner surface of the shell; a supporting plate is fixedly connected to the outer surface of the partition plate, a notch is formed in the outer surface of the upper end of the supporting plate, and a baffle is fixedly connected to the inner surface of the shell. Through the arrangement of the moisture removal assembly, air can be in full contact with the moisture absorption plate after entering the shell, moisture in the air can be effectively absorbed, the probability that condensation is formed in the inverter is reduced, the stability and safety of the inverter in the working process can be improved, and meanwhile the service life of the inverter can be effectively prolonged.

The invention relates to a non-ammonia elastic polyester fabric with a lasting quick-drying effect and a preparation method thereof.The non-ammonia elastic polyester fabric comprises a polyester fiber body and polyester modified fibers, the modified polyester fibers comprise the polyester fiber body and a modified coating, and the modified coating is formed by coating the surface of the polyester fiber body with modified paint; the modified coating comprises a composite microcapsule, waterborne polyurethane, a composite antibacterial agent and a dispersing agent, and the composite microcapsule comprises silicon dioxide, polystyrene, a phase change material and a hydrophilic modification component. The moisture absorption and sweat releasing effects of the polyester fabric are improved.

The invention relates to the technical field of automatic control, and discloses an automatic process intelligent control method and system for paper packaging. The method comprises the following steps: acquiring humidity fluctuation data and a material surface moisture content index in a production environment in real time, matching a preset moisture absorption model based on a humidity fluctuation grade, calculating a material physical property change amplitude and an influence of the material physical property change amplitude on pressure distribution, and obtaining a pressure distribution deviation value; calculating the target temperature adjustment amount of the heating equipment and updating the power setting of the humidity adjusting equipment according to the incidence relation between the deviation value and the equipment cooperation parameters, and generating a cooperation control instruction; driving equipment performs linkage adjustment and monitors pressure data, and key control parameters are extracted in a stable state for dynamic process adjustment; product appearance and packaging data are collected, whether the quality meets the standard or not is judged, and process parameters are automatically corrected. According to the method, multi-parameter intelligent cooperative control over humidity, temperature and pressure is achieved, and the stability, consistency and automation level of the paper product packaging production process are improved.

The invention discloses a chicken liver powder conveying system based on a multidirectional pneumatic channel, relates to the technical field of pneumatic conveying, and aims to solve the problems that local accumulation is caused by traditional one-way airflow, and the composite effects of conveying, mixing and drying are difficult to consider. The device comprises a mixing tank and an air inlet pipe, the lower end of the mixing tank is sequentially provided with a lower discharging pipe and a material distributing tank, and the lower end of the material distributing tank is provided with a composite pneumatic channel assembly; on one hand, the conveying-mixing-drying composite effect of chicken liver powder and additive powder is achieved through the multi-direction conveying airflow impact effect, stable feeding in the powder pneumatic conveying process is achieved, and on the other hand, a longitudinal disturbance mechanism is combined to be matched with the intermittent spraying effect; the limitation that the mixed powder is prone to moisture absorption and caking is relieved, the phenomenon of local accumulation or pipeline abrasion is avoided, and continuous and stable conveying can be effectively achieved under the design that the two materials supplement each other.

The invention relates to the technical field of lithium ion batteries, in particular to a composite lithium-rich manganese-based positive electrode material and a preparation method and application thereof. The composite lithium-rich manganese-based positive electrode material is of a three-layer structure and sequentially comprises a lithium-rich manganese-based oxide positive electrode material matrix, a first coating layer and a second coating layer from inside to outside, the first coating layer is a mixture of halide solid electrolyte and lithium-containing oxide; and the second coating layer is an oxide solid electrolyte. The conductivity of a contact interface with a positive electrode material can be improved, the resistance is reduced, the moisture absorption degradation of halide is inhibited, the packaging difficulty is reduced, and the cycle performance of the halide-added solid electrolyte after moisture absorption is improved.

According to the multi-layer structure of the composite board and the processing method of the multi-layer structure, swelling blocks on a wear-resisting layer form protruding particles after meeting water, the anti-skid performance is remarkably improved, the safety of a user in a wet and slippery environment is ensured, the color changing function of a humidity sensing piece can rapidly remind the user that water exists on the ground, accidental slipping is prevented, and the service life of the user is prolonged. The efficient water absorption layer and the self-heating layer achieve rapid water absorption and rapid drying and keep the floor dry, the wear-resistant layer and the expansion particles are made of wear-resistant and tear-resistant materials, durability of long-term use is guaranteed, application of intelligent materials such as a shape memory polymer retractable film and the self-heating layer made of moisture absorption and heating materials guarantees reuse and efficient performance of the materials, and the service life of the materials is prolonged. The base material layer and the moisture-proof balance layer ensure the stability and the moisture-proof performance of the structure, the processing process is simplified through composite forming in a hot-press gluing or riveting mode and reserved groove arrangement, and it is ensured that all layers of materials are tightly combined.