1312 results about "Moisture absorption" patented technology

The invention discloses a high-weatherability sound insulation wood plastic wallboard and a preparation method thereof, the high-weatherability sound insulation wood plastic wallboard comprises the following raw materials by weight: 30-40 parts of wood flour or plant fiber, 25-35 parts of a sound insulation functional filler, 35-45 parts of high density polyethylene, 2-2.5 parts of maleic anhydride grafted high density polyethylene, 1-1.5 parts of stearic acid, 3-4.5 parts of a weatherability auxiliary agent, and 1-1.5 parts of azodicarbonamide. The problems of cracking, deformation and the like caused by moisture absorption expansion are relieved by optimizing the proportion and compatibility of the wood flour and the plastic, and then the problems of weather resistance and sound insulation of the wallboard outdoors are solved by filling the porous sound absorption material.

The invention relates to the technical field of transformers, in particular to a power electronic transformer with a shielding structure, which mainly comprises a transformer body, a radiator is fixedly mounted on the side surface of the transformer body, a cooling fan is fixedly mounted at the end part of the radiator, and a weak current box is fixedly mounted at the end part of the transformer body. Double oil mist separation is achieved through the deoiler, one is that spiral ascending airflow is formed through guiding of the jet pipe, oil mist in gas is removed according to the centrifugal demisting principle, and the other is that residual oil mist in the gas is secondarily intercepted through the filter element pipe, so that the oil mist in respiratory airflow can be effectively removed, the oil mist interception efficiency is remarkably improved, and the oil mist separation efficiency is greatly improved. Meanwhile, the elastic membrane of the buffer can absorb sudden pressure change of the oil conservator through elastic deformation, so that the pressure fluctuation amplitude is reduced when the load changes suddenly, pulverization or structural damage of the drying agent caused by strong airflow impact is avoided, it is ensured that the moisture absorption drying agent is always in a clean and stable working environment, and the efficient dehumidification capacity is maintained.

The application relates to the technical field of integrally-formed inductors, in particular to a moisture-resistant soft magnetic composite material and a preparation method thereof and an integrally-formed inductor. The moisture-resistant soft magnetic composite material comprises the following components by mass: 100 parts of soft magnetic powder, 2-5 parts of a resin bonding agent and silicon resin, wherein the mass ratio of the silicon resin to the resin bonding agent is (0.3-2.0):100. The moisture-resistant soft magnetic composite material can avoid the phenomenon of explosion of the integrally-formed inductor during a reflow soldering process after moisture absorption.

The invention relates to the technical field of electric meters, in particular to an internet of things intelligent electric meter supporting edge computing, which comprises an intelligent electric meter shell and a circuit board arranged in the intelligent electric meter shell, and further comprises an elastic mounting system which comprises a plurality of clamping seats fixed on the inner wall of the intelligent electric meter shell and a plurality of clamping heads fixed on the edge of the circuit board, a bidirectional buffer mechanism is arranged between the clamping head and the clamping seat, the bidirectional buffer mechanism allows the circuit board to perform multi-degree-of-freedom micro motion in a vibration environment so as to buffer impact, the heat exchange and dehumidification system comprises a heat conduction copper rod penetrating through the clamping seat, one end of the heat conduction copper rod is thermally connected with the bidirectional buffer mechanism, and the other end of the heat conduction copper rod is provided with heat dissipation fins. The heat conduction copper rod is sleeved with a moisture absorption filter element and a breathing heat dissipation system, the breathing heat dissipation system comprises a breathing air shell fixed in the intelligent electric meter shell, a suction groove is formed in the breathing air shell, an intermittent air exchange mechanism is arranged in the breathing air shell, and the air exchange mechanism can periodically suck external cooling air into the shell and then discharge the air out of the shell to blow the circuit board.

The invention provides a tobacco shred wet mass online detection method based on hyperspectral imaging and time-space fusion, which comprises the following steps: acquiring a hyperspectral data cube of a tobacco shred flow, extracting a tobacco shred area and generating a mask; calculating a standardized moisture index of each pixel point in the mask according to the spectral response values of the moisture absorption wave band and the reference wave band to obtain a standardized moisture index image; based on a set index threshold value, converting the standardized moisture index image into a binary image, and performing morphological cleaning; carrying out wet group identification and marking on the cleaned binarized image to obtain an external rectangular frame of the binarized image; overlapping or adjacent external rectangular frames are combined, the combined external rectangular frames are screened based on the minimum area threshold value, the external rectangular frames which do not meet the area condition are removed, and the final tobacco shred wet mass external rectangular frames are obtained; according to the invention, misjudgment caused by shielding is significantly reduced; the high-speed and real-time online detection requirements of a cigarette production line can be completely met.

The invention discloses a moisture absorption and sweat releasing polyester fiber and a preparation method and application thereof, and relates to the field of polyester fibers. The moisture absorption and sweat releasing polyester fiber is prepared from the following raw materials in parts by weight: 85 to 95 parts of fiber-grade PET polyester, 4 to 12 parts of PET copolymer, 0.5 to 2.0 parts of dispersing agent and 0.1 to 0.5 part of antioxidant, wherein the PET copolymer is prepared from the following raw materials: terephthalic acid, ethylene glycol, neopentyl glycol, a catalyst and polyethylene glycol. On the basis of terephthalic acid and ethylene glycol, neopentyl glycol and polyethylene glycol are further added, the formed PET copolymer serves as a moisture absorption and sweat releasing modifier and is subjected to melt blending and spinning with fiber-grade PET polyester, hydrophilic groups and a fiber structure are fused into a whole, the moisture absorption and sweat releasing performance of the prepared polyester fiber is improved, and the moisture absorption and sweat releasing effects of the polyester fiber are improved. The durability of the moisture absorption and sweat releasing performance is also ensured.

The invention discloses green leaf-imitated porous hydrogel as well as a preparation method and application thereof, and belongs to the technical field of hydrogel materials. The preparation method of the green leaf-imitated porous hydrogel comprises the following steps: mixing polyvinyl alcohol, tannic acid and a composite pigment in a solid state, and grinding to form uniformly dispersed mixed powder; then spraying a glutaraldehyde solution to the mixed powder, carrying out a cross-linking reaction at room temperature, and washing after the reaction to obtain hydrogel; soaking the hydrogel in a lithium chloride solution, and taking out the hydrogel after soaking to obtain the green leaf-imitated hydrogel with the automatic moisture absorption function; the hydrogel has a porous structure, can automatically absorb moisture and simulate a vegetation spectrum in a 400-2500nm wave band at high precision, is suitable for covering the surface of fabric or equipment so as to simulate the spectrum and thermal characteristics of vegetation, and can be widely applied to the field of infrared camouflage.

The intelligent quick-dry fabric comprises a fabric body, the fabric body comprises a yarn A and a yarn B, the yarn A is the yarn with the moisture absorption deformation characteristic, and the yarn B is the yarn with the deformation amount smaller than or equal to 5% after moisture absorption; the fabric body comprises a plurality of basic circulation unit structures, in one basic circulation unit structure, yarn A is woven to form a complete A coil row, the A coil row comprises A coils, yarn Bm and yarn Bm + n are interwoven around the yarn A, the yarn Bm is woven to form a Bm coil row, the Bm coil row comprises Bm coils, the yarn Bm + n is woven to form a yarn Bm + n coil row, and the yarn Bm + n is woven to form a yarn Bm + n coil row. The yarn Bm + n coil courses comprise yarn Bm + n coils, n-1 coil courses are arranged between the Bm coil courses and the Bm + n coil courses, and the Bm coil courses and the Bm + n coil courses are mutually strung and looped on at least one coil wale. The air permeability is improved by means of moisture absorption change, and the quick-drying effect is achieved.

The present invention discloses a CBP lysine children growth milk powder and a preparation method thereof, and belongs to the technical field of milk powder, the CBP lysine children growth milk powder comprises the following components by mass: a wet process part: 575 parts of whole milk powder, 175 parts of dried skim milk, 175 parts of isomaltooligosacharide (type 50) powder, 30 parts of polydextrose, 28 parts of edible plant blend oil, 4 parts of milk mineral salt, and 13.7 parts of a compound children modified milk powder three-nutrition enhancer; cBP lysine is cooperated with bifidobacterium and seven traditional Chinese medicine extracts, DHA and ARA are accurately proportioned, the calcium absorption efficiency and the intestinal colonization capacity of probiotics are remarkably improved, a three-step mixing method is combined with a two-way shearing low-temperature technology, rapid and uniform mixing is achieved, the activity of the probiotics and the stability of DHA are reserved to the maximum extent, high uniformity of products is ensured, and the product quality is improved. The low-moisture wet-process base powder inhibits moisture absorption of traditional Chinese medicine components, nitrogen protection blocks oxidation in the whole process, the shelf life is prolonged, and the reconstituability is improved.

The invention discloses a preparation method of a wood water collecting material for extracting water from air. The method comprises the steps that natural wood is pretreated, a photo-thermal material-nano carbon black is added, the material is endowed with photo-thermal conversion performance, then moisture absorption salt is added, a product is subjected to freeze drying after loading is finished, and the high-moisture-absorption wood is obtained. The method has the advantages of simple process flow, mild reaction conditions, short reaction time, excellent moisture absorption and photo-thermal conversion performance, and good practical application value.

The multifunctional partitioned temperature control medical storage cabinet comprises a multifunctional medical temperature control cabinet, and a drying mechanism and a heat dissipation auxiliary mechanism are arranged in the multifunctional medical temperature control cabinet; according to the multifunctional partitioned temperature control medical storage cabinet, by arranging the drying mechanism, the heat dissipation auxiliary mechanism and the cleaning mechanism, the multiple improvement effect on the environment in the cabinet is achieved, firstly, a motor drives a lead screw to drive a support to move, a cleaning wiping plate can be periodically attached to the back face of the partitioned storage cabinet, condensate water formed due to temperature difference is cleaned and scraped, and the cleaning effect is improved; according to the drying device, local moisture accumulation caused by long-term adhesion of water drops is avoided, the mildew risk is reduced from the source, meanwhile, condensate water is extruded to flow into the water storage tank and is discharged through the drainage pipe, the internal humidity control capacity is further improved, and then the drying box is heated by the heating plate, so that drying agent particles continuously keep active; and the transmission plate drives the transmission ring and the transmission blades to rotate to stir the drying agent particles, so that moisture absorption is more uniform and efficient.

The invention discloses a moisture-absorbing breathable polyamide fiber fabric and a preparation method thereof, and relates to the technical field of polyamide fiber fabrics. The method comprises the following steps: preparing a nano silicon dioxide composite template agent, and blending the nano silicon dioxide composite template agent with chinlon slices to prepare modified master batches; after special-shaped hollow spinning and weaving, a pore-foaming agent is dissolved out through hot water treatment, and a porous structure is constructed in the fiber; then carrying out plasma activation on the fabric, and grafting monomers such as acrylic acid, acrylamide and stearyl methacrylate on the surface and in pores of the fiber by adopting a radiation grafting method to form a hydrophilic-hydrophobic dual-channel structure; then, pre-crosslinked composite particles prepared from chitosan, beta-cyclodextrin and the like are loaded in micropores of the fabric through a vacuum-positive pressure circulation process; and finally, treating by using a finishing liquid containing blocked isocyanate, and carrying out heat setting. The prepared fabric has high moisture absorption rate, large moisture absorption capacity and excellent wet air permeability, is washable and anti-yellowing, and is suitable for high-performance sports and outdoor clothes.

The invention provides a precise baking process optimization method and system for a mini LED circuit board, a baking oven is divided into a preheating area, a main baking area and a cooling area, a double-circulation hot air system and top vertical airflow are adopted, infrared and digital humidity sensors are combined, independent temperature and humidity regulation and control are realized, nitrogen-argon mixed gas is injected, and opening and closing of injection holes are adjusted based on the thickness of a substrate, so that the precise baking process of the mini LED circuit board is realized. Maintaining positive pressure and oxygen content in the box based on a three-dimensional pressure sensor network, prolonging heating time according to environment humidity in a preheating stage, performing gradient control on a heating rate, constructing a humidity-moisture absorption rate mapping table and a three-layer neural network model, adjusting power output in combination with Z-axis temperature difference, and adopting forced air cooling and nitrogen sealing procedures in a cooling area; and a plate explosion prediction model is established, a historical data triggering parameter adjustment mechanism is combined, baking parameters are written into the two-dimensional code of the substrate through a block chain technology, and traceability of the whole process is realized.

The invention relates to the technical field of fabrics, in particular to a cool-feeling long cilia strip and a preparation method thereof.The cool-feeling long cilia strip is composed of cool-feeling fibers and a long cilia strip base material and is characterized in that the cool-feeling fibers comprise a core layer, a functional skin layer and an outer thin skin layer; the functional skin layer is prepared from the following components: a sulfonated copolyester matrix, catechol grafted master batch, surface modified zeolite nano powder, an anti-hydrolysis agent and an antioxidant, and the functional skin layer also contains introduced Zn < 2 + > and Mg < 2 + >. Zn < 2 + > and Mg < 2 + > which are stably combined on anchoring points of sulfonated copolyester are subjected to hydration endothermic reaction when being in contact with water, so that a cool feeling is generated; the surface modified zeolite nano powder synergistically enhances moisture absorption and water temporary storage by virtue of the specific surface area, and continuously provides water for an ionized hydration reaction to prolong and amplify a cool feeling effect; the catechol grafting structure endows the fiber with antibacterial performance, and long-term stability of the structure is ensured through an interface enhancement effect. And the outer layer hydrophilic polyester is matched, so that the product has comfort, durability and functionality.

The invention discloses a preparation method of a fan-out type packaging structure, and belongs to the technical field of semiconductor packaging. According to the invention, by introducing two molding processes and combining the support of the vertical guide pillar, a stress-balanced double-sided coating structure is constructed, so that packaging body warping caused by material thermal mismatch is significantly inhibited. By adopting the stable low-warping structure formed by the invention, the yield of subsequent processes such as photoetching is greatly improved, the dependence on an expensive compensation material is reduced, and a complicated warping correction step is omitted. The area of the dielectric layer is limited in the central area of the surface of the molding compound, so that the path of environmental moisture invading from the edge is structurally blocked, the problems of interface layering and reliability degradation caused by moisture absorption of dielectric materials such as photosensitive polyimide are fundamentally solved, meanwhile, an edge stress concentration area is avoided, and the service life of the dielectric material is prolonged. And the interface stability is enhanced. In addition, the pre-formed vertical guide pillars also provide vertical electrical interconnection and heat dissipation paths for packaging.

The invention relates to the technical field of moisture prediction, in particular to a 3D reconstruction and illumination adaptive coal surface moisture prediction method, which comprises the following steps of: planning an unmanned aerial vehicle route to collect an image, reconstructing coal pile surface space structure information, forming a local triangular grid, dividing an illumination continuous area, establishing a space corresponding relation between the illumination area and a hyperspectral pixel, and predicting the moisture content of a coal pile. And geometric registration and reflection transition correction are executed, depression points and shoulder positions of a reflection curve are detected in the identification interval, moisture absorption characteristics are constructed, a moisture migration link is established in the slope direction, and a coal surface moisture prediction result is obtained. According to the method, a spatial structure and illumination distribution are coupled, a dynamic correction relation is established to unify reflection information, image registration and spectrum reconstruction are combined to strengthen geometric consistency, a moisture migration trend is extracted by utilizing depression point and slope correlation, link and accumulation distribution is formed, and a corrected reflection characteristic represents a spectrum attenuation rule. The spatial continuity and numerical stability of moisture identification are ensured, and the water content grade division is coherent and comparable.

The utility model discloses a getter film with high initial outbreak rate and lasting moisture absorption rate for a perovskite battery, a support framework layer is an expanded polytetrafluoroethylene microporous film layer, and an active layer is a getter active layer formed by infiltrating a getter into a pore structure of the expanded polytetrafluoroethylene microporous film layer. The composite layer is a getter composite layer formed on at least one side surface of the expanded polytetrafluoroethylene microporous membrane layer through a getter. Through the above mode, the periphery of the active material layer of the perovskite cell in a service environment can be kept in a vacuum state for a long time, and the perovskite cell is ensured to be in a high photoelectric conversion efficiency and a stable state for a long time; the getter film is coated with a back adhesive layer and is non-corrosive, and the getter film can be directly pasted on a glass cover plate of a perovskite cell or on silver, aluminum and copper electrodes for packaging after the release film is uncovered during use; and the initial explosion rate is high, and moisture and oxygen can be quickly absorbed in the packaging cavity within two hours, so that a vacuum state is achieved.

The invention provides a low-VOC epoxy structural adhesive as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The low-VOC epoxy structural adhesive is mainly prepared from the following raw materials in parts by mass: 10 to 30 parts of filler, 0.1 to 0.5 part of curing accelerator, 1 to 5 parts of curing agent, 3 to 5 parts of moisture absorption agent, 0.01 to 0.05 part of pigment, 2 to 5 parts of thixotropic agent, 10 to 20 parts of core-shell modified epoxy resin, 10 to 15 parts of bisphenol F type epoxy resin, 10 to 20 parts of bisphenol A type epoxy resin, 15 to 25 parts of polyurethane modified epoxy resin and 10 to 15 parts of flexibilizer. 0.1 to 0.5 part of a silane coupling agent; and 0.1 to 0.5 part of a VOC adsorbent. By optimizing and upgrading the proportion of the low-VOC epoxy structural adhesive, high-efficiency selective adsorption of micromolecular volatile matters such as aldehydes and the like can be effectively realized, and the environmental protection property and the use safety of the product are remarkably improved.

The invention discloses a packaging box special for medical treatment, and relates to the field of packaging boxes for medical treatment. The plant fiber composite material is prepared from the following raw materials in parts by weight: 80-95 parts of plant fiber slurry, 3-10 parts of chitosan, 5-15 parts of polylactic acid, 1-5 parts of nano silicon dioxide, 0.5-3 parts of an environment-friendly water repellent agent, 2-8 parts of reinforced fibers, 3-8 parts of a reversible moisture absorption phase change material and 0.1-0.5 part of a degradation indicating pigment. The plant fiber slurry is adopted as a bio-based framework, chitosan microfibers, polylactic acid, nano silicon dioxide, a reversible moisture absorption phase change material and other functional components are innovatively introduced, and an antibacterial trigger layer and degradation indication pigment on the inner surface are matched, so that the packaging box keeps good mechanical strength and structural stability, and meanwhile the packaging box has the advantages that the packaging box is not prone to deformation, and the service life is prolonged. And multiple functions of active on-demand antibiosis, dynamic humidity adjustment, visual degradation tracking and full bio-based degradability are achieved.

The invention discloses high-temperature-resistant high-purity low-chlorine epoxy resin and a preparation method thereof. On one hand, the high-purity low-chlorine epoxy resin resistant to high temperature is provided, the high-purity low-chlorine epoxy resin is prepared by curing an epoxy resin base material through a composite curing agent, and the epoxy resin base material is prepared from, by mass, 100 parts of low-chlorophenyl multifunctional epoxy resin and 12-20 parts of epoxy silicon resin; the composite curing agent comprises the following raw material components in parts by mass: 100 parts of a DDS curing agent, 30-40 parts of a bio-based phenolic aldehyde amine curing agent and 6-12 parts of boron modified phenolic resin. On the other hand, the invention provides a preparation method of the high-temperature-resistant high-purity low-chlorine epoxy resin. The epoxy resin material disclosed by the invention has relatively high glass transition temperature, relatively excellent high-temperature resistance and high-temperature aging resistance, low moisture absorption rate and excellent electrical insulation performance.

The invention relates to the technical field of edge calculation, in particular to a precise irrigation system and method based on a plant growth model and edge calculation, and the system comprises an environment perception fusion module, a growth state matching module, an edge water volume calculation module, an equipment instruction issuing module and a feedback cycle recognition module. According to the invention, continuous detection and unified processing are carried out on environmental data through edge nodes, data integrity and space mapping efficiency are improved, moisture absorption capability and root distribution are matched according to crop growth stage parameters, an area to be irrigated is accurately calibrated, and target water volume calculation is locally completed in combination with a real-time soil state. A time and flow matching structure is constructed, pertinence of irrigation control is improved, control instructions are executed through distributed control equipment, response behaviors are recorded, equipment state traceability is achieved, continuous feedback recognition is conducted on soil moisture changes after irrigation, dynamic adjustment of a closed loop is promoted, the system response speed and irrigation precision are improved, and the risk of resource waste is reduced.

The utility model discloses a moisture absorption and sweat releasing chemical fiber fabric, and relates to the technical field of fabrics. According to the technical scheme, the breathable fabric is characterized in that the breathable fabric comprises an inner layer and an outer layer which are fixedly connected with each other, a plurality of contact strips with the same length as the outer layer are fixedly connected to the side, close to the inner layer, of the outer layer, each contact strip is composed of a plurality of contact velvet, and first breathable sections corresponding to the contact strips are arranged on the inner layer; the side, close to the outer layer, of the inner layer is fixedly connected with a plurality of moisture dissipation blocks, each moisture dissipation block is composed of a plurality of moisture dissipation velvet, the outer layer is provided with second ventilation sections corresponding to the moisture dissipation blocks, and the sectional area of the first ventilation sections and the sectional area of the second ventilation sections are larger than those of the contact strips and the moisture dissipation blocks respectively. The moisture absorption effect is guaranteed through the contact strips and the moisture dissipation blocks, channels for external air to enter the fabric are increased due to the arrangement of the first breathable section and the second breathable section, and the moisture absorption and dissipation performance of the whole fabric is guaranteed through the characteristics of the viscose fibers and the bamboo charcoal fibers.

The utility model provides a pair of full-hemp surface layer menstrual period trousers, which comprises a full-hemp surface layer menstrual period trousers body which is in the shape of underpants formed by cutting and compounding non-woven fabrics and rubber bands. The full-China-hemp surface layer menstrual period pants body sequentially comprises a surface layer, a flow guide layer, an absorber, an anti-leakage bottom film and an elastic surrounding body from the skin contact surface to the bottom, and the surface layer is made of full-China-hemp non-woven fabric. The surface layer is the non-woven fabric made of all China-hemp fibers, the China-hemp fibers belong to natural plant fibers and can destroy the thallus structure of bacteria and prevent anaerobic bacteria from surviving, the China-hemp fibers have moisture absorption and quick drying functions, a dry environment is not beneficial to bacterial reproduction, menstrual blood is quickly pulled to the bottom through the multi-layer tiled structure in the absorber, and therefore the menstrual blood can be quickly absorbed. The China hemp fibers can effectively inhibit bacterium breeding and prevent bacteria from breeding upwards, skin or gynecological diseases caused by contact with skin are avoided, and the use requirement of women for menstrual period trousers is met.

The application relates to the field of films, and discloses a phase-change waterproof and breathable packaging film and a preparation method and application thereof. The phase-change waterproof and breathable packaging film comprises the following raw materials in parts by weight: hydrophilic TPU particles, 100 parts; phase-change microcapsules with a particle size of 100-350 microns and a phase-change temperature of 50-60 DEG C, 5-25 parts; polyurethane hydrogel, 10-45 parts; and a pore former with a particle size of 0.1-1 micron, 3-20 parts. The phase-change waterproof and breathable packaging film is specially designed for the long-acting moisture control material of the applicant. The phase-change waterproof and breathable packaging film has a moisture absorption and heat storage function, and can prevent the long-acting moisture control material from releasing a large amount of moisture when the ambient temperature rises after the long-acting moisture control material is packaged, thereby preventing the vehicle lamp from fogging, and meeting the application requirements of the vehicle lamp.

The invention relates to the field of textile fabrics, and discloses a polylactic acid fabric and a preparation method thereof. The polylactic acid fabric is prepared by weaving polylactic acid fibers, the polylactic acid fibers are prepared by melt spinning of a polylactic acid material body, and the polylactic acid material body is prepared from the following raw materials in parts by weight: 100-120 parts of polylactic acid resin, 12-20 parts of a heat-resistant moisture absorbent, 6-10 parts of a toughening agent and 0.2-0.4 part of an antioxidant; the heat-resistant moisture absorbent is prepared from lignin fibers, poly (ethylene 2, 5-furandicarboxylate), poly (butylene adipate-co-terephthalate) and a dispersing agent. The preparation method comprises the following steps of melt spinning, rib knitting, heat setting, dyeing and aftertreatment. The polylactic acid fabric prepared by the invention has better heat resistance, moisture absorption and shrink deformation resistance, and is suitable for scenes with higher requirements on heat resistance and moisture absorption, such as underwear or infant clothes.

The present application belongs to the field of indoor ceiling moisture-proof, and discloses an indoor decoration ceiling moisture-proof material and a preparation method. The material comprises liquid material and powder material. The liquid material comprises the following components: acrylic emulsion, epoxy modified water absorbing resin, water and first additive. The powder material comprises the following components: heavy powder material, light filler and second additive, and optionally humidity adjusting functional filler. The ceiling moisture-proof material has the advantages of light weight, easy coating, smooth brushing, moisture absorption, moisture release and condensation water drop prevention in addition to the water resistance and impermeability of traditional polymer cement-based waterproof materials.

The invention provides a mechanical vapor recompression-based dehumidizer regeneration type air water taking system, which comprises a moisture absorption unit, which comprises a gas-liquid contact reaction device, and is used for enabling a dehumidizer solution to be in full contact with air for mass transfer and heat transfer, and enabling the dehumidizer solution to absorb moisture in the air so as to be diluted; the mechanical vapor recompression evaporator comprises an evaporator and a compressor, the evaporator comprises a dilute solution inlet, a concentrated solution outlet, a vapor outlet, a vapor inlet and a condensed water outlet, the evaporator comprises a dehumidizer channel capable of containing a dehumidizer solution, and the dilute solution inlet and the concentrated solution outlet are connected to the moisture absorption unit; the dilute solution inlet is used for receiving the diluted desiccant solution, the concentrated solution outlet is used for leading the evaporated and concentrated desiccant solution to the moisture absorption unit, the compressor comprises a compressor inlet and a compressor outlet, the compressor inlet is connected to the steam outlet, and the compressor outlet is connected to the steam inlet.

The present application relates to the technical field of discontinuous reinforced short fibers, in particular to a high-performance composite short fiber and a preparation method thereof.The present application overcomes the contradiction between the hygroscopicity and mechanical properties of the composite short fiber and the problem of poor skin-core interface compatibility.By reacting acidified carbon nanotubes with hydroxyl-terminated hyperbranched polyester, and then melt extruding with PET chips, a high-strength core layer master batch is obtained;high-density polyethylene, a hydrophilic agent, hydrophilic modified MOF particles and E-GMA copolymer are mixed and extruded to obtain a skin layer PE master batch with long-term hydrophilicity;the skin and core layer master batches are spun into a skin-core structure, and after ring blowing cooling, two-bath drafting, heat setting, mechanical crimping and cutting, a composite fiber is obtained.The prepared PE / PET bicomponent composite short fiber not only has excellent tensile strength, but also has persistent and stable moisture absorption and sweat releasing functions.

The application discloses a police clothing fabric convenient for heat dissipation and a processing technology, and the processing technology comprises the following steps: after carbon fibers are pretreated by a potassium permanganate solution and a KH550 aqueous solution, the carbon fibers are added into N,N-dimethylformamide, then ethylenediaminetetraacetic dianhydride is added into the mixture under stirring, and stirring reaction is carried out; the product is extracted, washed and dried to obtain ethylenediaminetetraacetic dianhydride modified carbon fibers; the modified carbon fibers are added into deionized water, then mannitol is added, concentrated sulfuric acid is used as a catalyst, and stirring reaction is carried out; the product is centrifuged, washed and dried to obtain modified carbon fibers; the modified carbon fibers and PET chips are mixed, then melt spinning is carried out, and the police clothing fabric convenient for heat dissipation is obtained through weaving; the fabric greatly improves the moisture absorption, sweat releasing, air permeability and heat dissipation performance of the fabric, improves the breaking strength of the fabric, and is suitable for being used as a police fabric.

The invention provides a composite material service life prediction method. The method comprises the following steps: constructing a material moisture absorption model according to preset composite material moisture absorption data; and constructing a material life prediction model according to the material moisture absorption model and preset mechanical data of the composite material. And predicting the service life of the composite material according to the material service life prediction model. Therefore, prediction of the storage life of the composite material under the moisture absorption condition is realized.