439 results about "Hygroscopicities" patented technology

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 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 invention discloses a transparent composition photoresist with low shrinkage and low vacuum deflation. Comprising the following raw materials in percentage by mass: 1-5% of modified polyhedral oligomeric silsesquioxane (POSS), 1-5% of an expanding monomer, 1-5% of modified acrylic resin, 1-5% of epoxy resin, 1-5% of a thiol cross-linking agent, 1-5% of an initiator, 0.1-3% of a curing accelerator, 0.2-0.5% of a flatting agent, 0.1-5% of a silane coupling agent, 0.01-0.2% of an antioxidant and 80-90% of an electronic-grade organic solvent. The invention also provides a preparation method of a cured coating prepared from the transparent composition photoresist with low shrinkage and low vacuum deflation. The product provided by the invention not only can maintain the properties of high hardness, high thermal stability, high planarization ability, high barrier property, low hygroscopicity, low dielectric constant and the like of the transparent composition photoresist coating, but also can enable the transparent composition photoresist coating to have excellent low shrinkage and low outgassing, thereby achieving the purposes of saving energy, reducing emission, reducing cost and improving efficiency; the low shrinkage of the transparent composition photoresist coating also widens the development of the material in the fields of other panel production processes such as OLED (Organic Light Emitting Diode) and the like.

A salt of a substituted amino six-membered nitric heterocyclic compound, a crystal form thereof, a method for preparing same, and use thereof are provided. A dihydrochloride salt of a compound represented by formula (I) is a specific example. The salt can be prepared as a crystal form, the crystal form preferably having the following advantages: good solubility, low hygroscopicity, stable quality, and crystal form stability, thus being more easily developed into drugs as compared with the compound represented by formula (I) or other salts.

A method for determining the water content of a hygroscopic fluid. The method includes inserting an amount of hygroscopic fluid into a fluid ejection cartridge; attaching the fluid ejection cartridge to a fluid ejection device; activating the fluid ejection cartridge to dispense a predetermined number of fluid droplets from one or more nozzles of an ejection head attached to the fluid ejection cartridge onto a substrate to determine a total mass of the fluid droplets dispensed, a velocity of the dispensed fluid droplets or a combination of the total mass of the fluid droplets dispensed and the velocity of the dispensed fluid droplets; and using an information database that correlates the water content of the hygroscopic fluid to an average mass per fluid droplet dispensed and the velocity of the fluid droplets dispensed to determine the water content of the hygroscopic fluid.

The invention provides a low-coupling flexible self-powered multi-mode sensor and a preparation method and application thereof, and belongs to the technical field of flexible electronic materials. Comprising a temperature sensing layer, a pressure sensing layer and a humidity sensing layer which are stacked in sequence. The temperature sensing layer is made of a PEDOT: PSS / MWCNT composite material and outputs a temperature response signal through resistance change; the pressure sensing layer is formed by combining a PDMS layer with a micro-nano structure and a PET layer, and outputs a pressure response voltage signal based on a triboelectric effect; the humidity sensing layer is composed of PVA / CA composite matrix and EGaIn liquid metal, and humidity response signals are output through hygroscopicity induced resistance change. The sensor realizes simultaneous detection of three physical quantities of temperature, pressure and humidity, has low coupling degree among the sensing units, and can be applied to the fields of robot interaction, wearable health monitoring and environment monitoring.

The invention belongs to the field of microorganisms, and particularly relates to a biochar-based immobilized microbial agent for promoting litter decomposition and a preparation method thereof.The biochar-based immobilized microbial agent for promoting litter decomposition comprises a biochar-based culture medium and a microbial seed solution, the active ingredient of the microbial seed solution is phanerochaete chrysosporium, and the preservation number is SHBCC D13411. According to the invention, the adsorption efficiency of the microbial agent is enhanced through the iron-modified biochar, and a habitat suitable for development and reproduction is provided for microorganisms; on the other hand, the biochar has very strong hygroscopicity, water molecules can be adsorbed on the surface, and a suitable growth environment is provided for microorganisms, so that the microorganisms are promoted to decompose litters.

The invention discloses a preparation method of a combustion type warm cloud catalyst, the combustion type warm cloud catalyst comprises a first slurry and a second slurry, the first slurry and the second slurry are prepared by layered inclined pouring and curing, the first slurry comprises 35%-70% of an oxidizing agent, 3%-8% of a combustion agent, 10%-16% of a moisture absorbent and 13%-21% of an adhesive, the second slurry comprises 60%-70% of an oxidizing agent, 15%-17% of a combustion agent and 13%-25% of an adhesive. Through a method of layered pouring of two medicaments, hygroscopic salts are thoroughly isolated from external water vapor, the problem of moisture absorption failure caused by long-term storage is solved, the components and proportions of the oxidant and the incendiary agent are optimized, the combustion temperature is changed, the diameter of aerosol particles generated after combustion is controlled, and the problem of poor moisture absorption is solved.

The invention relates to the technical field of hydrogel preparation, in particular to a preparation method of novel biomass hydrogel. The biomass hydrogel prepared by the invention overcomes the problems of poor hygroscopicity and poor recyclability of traditional hydrogel in a low-humidity environment. The cassava starch is oxidized by sodium periodate to prepare dialdehyde starch, so that the hydrophilicity is enhanced; sodium alginate is coated and combined with an epoxy group to covalently bond and fix lithium chloride, so that salt slow release and low-humidity deliquescence are realized; the ink containing the nano carbon material is introduced, so that efficient photo-thermal conversion is realized; meanwhile, after the substances are subjected to three-dimensional crosslinking, a polymer network-shaped gel structure is formed, and gradient drying and rehydration control are combined, so that the porous structure and the mechanical strength are guaranteed. The prepared hydrogel can quickly absorb moisture and efficiently perform photo-thermal evaporation in a low-humidity environment, and is good in recyclability.

The invention relates to the technical field of molten salt treatment, and discloses a molten salt recovery system based on a steel belt cooling granulator. The system comprises a molten salt physical property monitoring module, a viscosity modeling module, a cooling optimization module, a partition temperature control module, a phase change monitoring module, a dynamic adjustment module, a particle size analysis module, a quality grading module, a pneumatic conveying module and a waste heat recovery module. The progressive crystallization control of the molten salt particles is realized; a heat pipe type heat exchanger and an organic Rankine cycle system are integrated at the waste heat recovery end, so that comprehensive energy consumption is reduced; the environment regulation and control end monitors the workshop temperature and humidity in real time based on a dew point calculation model, and the long-term stability of hygroscopic fused salt particles is guaranteed. According to the method, four technical bottlenecks of out-of-control crystallization, energy waste, classification loss and environmental interference in fused salt recovery are overcome, and low-cost, high-purity and zero-waste fused salt resource recycling is realized.

The application discloses a kind of imitated plant leaf hydrogel composite material and preparation method thereof, belong to bionic composite material field.The application first by colorant compounding preparation printing paste, and fabric is printed, obtain the green fabric that can realize to plant leaf " green peak " and " red edge " spectral characteristic simulation, and with green fabric simulation leaf structure in fence organization and skeleton;Then with biomaterial polyvinyl alcohol (PVA) as base material, join with strong hygroscopic monomer and crosslinking agent, initiator blend preparation hydrogel prepolymer solution;Finally, hydrogel prepolymer solution is poured into the mold containing green fabric and copolymerization, it directly forms hydrogel in fabric surface and pore interior, obtains imitated plant leaf hydrogel composite material.The material gets rid of the dependence on hygroscopic salt, has water absorption and simulation effect stable, durability is good and the like advantages.

The invention belongs to the technical field of functional materials, and particularly relates to moisture power generation fabric and a preparation method and application thereof. The moisture power generation fabric comprises a fabric substrate modified with a conductive and hydrophilic reinforcing material, and a surface coating area of the fabric substrate is loaded with a moisture absorption power generation functional material. The proton transmission efficiency is improved through a specific charge transfer effect and an ion occupancy effect among components of the moisture absorption and power generation functional material, and the permanent asymmetric moisture absorption difference on two sides of a coupling interface of a coated area and an uncoated area is used as a stable driving force for proton transmission, so that lasting direct current output is formed. The power generation performance of the moisture power generation fabric is determined by power generation composite parameters (namely the product of stable power generation time and the sum of relative humidity and temperature under the same weight and the quotient of the product and the water evaporation difference value on the two sides of a coupling interface), and the power generation composite parameters and the power generation composite parameters are in a nonlinear relation of increasing and then decreasing. Therefore, the power generation performance of the moisture-induced all-weather sustainable power generation fabric can be quantitatively controlled and optimized by adjusting the power generation composite parameters.

The invention relates to an epoxy adhesive and a preparation method thereof, in particular to a low-hygroscopicity medium-temperature curing single-component epoxy adhesive suitable for bonding special-shaped structure composite materials and a preparation method of the low-hygroscopicity medium-temperature curing single-component epoxy adhesive. The invention aims to solve the problems of poor flowability resistance and wet resistance of the medium-temperature curing dicyandiamide system single-component epoxy adhesive for bonding special-shaped composite structures. The invention relates to a low-hygroscopicity medium-temperature curing single-component epoxy adhesive suitable for bonding special-shaped structure composite materials. The epoxy resin is prepared from the following components in parts by mass: 70 to 90 parts of bisphenol A epoxy resin, 10 to 30 parts of multifunctional epoxy resin, 10 to 30 parts of core-shell toughened epoxy resin, 10 to 20 parts of polysulfide rubber modified resin, 8 to 12 parts of dicyandiamide, 1 to 2 parts of 2-ethyl-4-methylimidazole and 7 to 9 parts of fumed silica. The polysulfide rubber modified resin disclosed by the invention has a good toughening effect in the epoxy resin adhesive, the shear strength can be improved, and the moisture resistance can be remarkably improved.

The invention discloses a novel composite fog dispersal catalyst formula and a preparation method thereof, and belongs to the field of manual intervention weather catalyst manufacturing. The catalyst comprises a hygroscopic agent, which can be calcium chloride, magnesium chloride, sodium chloride, urea, calcium hydroxide or magnesium hydroxide; the carrier agent can be oxidized starch, bentonite, diatomite, a molecular sieve or cellulose; and the dispersing agent can be silicon dioxide, fatty alcohol-polyoxyethylene ether, polyethylene glycol, fatty glyceride or titanium dioxide. The prepared catalyst has good hygroscopicity and dispersibility, and when the catalyst is sown in dense fog, the dense fog can be rapidly dissipated. The raw materials have high water absorption characteristic and dispersity and can accelerate dissipation of warm dense fog and improve visibility, most of the carrier materials are non-toxic and harmless environment-friendly materials, the content of chloride ions and alkali metal ions in the composite catalyst is effectively reduced by controlling the proportion, the corrosion effect caused by various ions is reduced, and the requirement for environmental protection is met.

The invention discloses a warp-resistant mineral reinforced PC / PBT alloy material with dimensional stability and a preparation method thereof, and relates to the technical field of polymer composite materials. The preparation method comprises the following steps: weighing polycarbonate, polybutylene terephthalate, ureido pyrimidone-polydimethylsiloxane, epoxy polyhedral oligomeric silsesquioxane, polyimide coated halloysite nanotubes, magnesium-aluminum hydrotalcite, perfluoroalkyl modified boron nitride nanosheets, liquid crystal polymer microfibers, modified PVA (Polyvinyl Alcohol) fibers and a silane coupling agent KH550 according to a ratio; the preparation method comprises the following steps: pre-mixing polycarbodiimide and a composite antioxidant to obtain a mixture, mixing, adding into a double-screw extruder, extruding and granulating, drying, carrying out injection molding, and standing at constant temperature and constant humidity to obtain the composite material. The invention has the significance of providing the PBT / PC alloy material with dimensional stability, warping resistance, low shrinkage rate, low hygroscopicity, creep resistance, impact resistance, arc resistance and chemical corrosion resistance for consumer-grade and industrial-grade underwater plastic parts.

The invention discloses a flexible packaging material and a preparation method and application thereof. The flexible packaging material comprises a sandwich structure formed by sequentially stacking a polymer elastomer with a viscoplastic surface layer, a self-adaptive gas barrier layer and a polymer elastomer with a viscoplastic surface layer, wherein the viscoplastic surface layer of the polymer elastomer consists of a non-polar viscoelastic molecular network and a plastic polar polymer microdomain; the self-adaptive gas barrier layer is at least one of liquid metal, hygroscopic gel and viscous hygroscopic liquid; and the viscoplastic surface layers of the upper and lower polymer elastomers are respectively contacted with two surfaces of the self-adaptive gas barrier layer, so that a sandwich structure is formed. The flexible packaging material not only can be flexibly stretched, but also has ultrahigh gas barrier property, and has important significance and value for promoting the practical application and industrialization process of flexible electronic devices.

The invention provides an anastomotic stoma reinforcing device as well as a preparation method and application thereof. The anastomotic stoma reinforcing device comprises a reinforcing material layer, a connecting material layer and a release film which are sequentially stacked, wherein the connecting material layer comprises a hydrophobic adhesive layer, a carrier layer and a waterproof adhesive layer which are sequentially stacked, and the hydrophobic adhesive layer is in contact with the reinforcing material layer. When the anastomotic stoma reinforcing device is used, the release film of the anastomotic stoma reinforcing device is peeled off, the reinforcing material layer can be fixed to the nail bin face and / or the nail anvil face of an anastomat by means of the waterproof glue layer, due to the fact that the reinforcing material layer has hygroscopicity and can be completely wetted after making contact with liquid on the tissue surface, the reinforcing material layer and the hydrophobic glue layer are separated, and therefore the anastomotic stoma is reinforced. However, the material of the anastomat does not absorb moisture, the connecting material layer is still firmly adhered to the anastomat and is not easy to separate, and when the anastomat is taken out, the connecting material layer is taken out along with the anastomat, so that the problems of slow postoperative recovery and the like caused by connecting material residues are avoided.

The invention discloses a lithium hydroxide granulation process of a carbon dioxide absorbent, and relates to the technical field of lithium hydroxide granulation, uniform particle size distribution is beneficial to dispersion and reaction uniformity in the subsequent processing process, the problem of inconsistent product performance caused by particle size difference is avoided, and the test of a universal material testing machine shows that the lithium hydroxide granulation process can be used for preparing lithium hydroxide granules. The average compressive strength of the prepared lithium hydroxide particles is 5N / particle, and the lithium hydroxide particles have better mechanical strength, are not easy to break in the storage, transportation and industrial processing processes, can effectively reduce the generation of dust, reduce the risk of environmental pollution, ensure the quality stability of the product and meet the basic requirements on the particle strength in actual production. After the product is placed in an environment with the humidity of 70% for 24 hours, the weight gain rate of the particles is increased by 50-70%, and compared with ungranulated powdery lithium hydroxide, the hygroscopicity is remarkably improved, which is benefited from the micropore loose structure of the particles and the protective effect of the binder, the storage stability of the product in a humid environment is effectively improved, and the absorption function of the product on carbon dioxide in air is increased.

The invention discloses a thermochemical energy storage composite material with a bionic ordered structure and a preparation method of the thermochemical energy storage composite material, and relates to the crossing field of new energy materials and thermochemical energy storage technologies. Through an optimization strategy of coordination of geometrical shape, internal channel and surface effect, efficient adsorption / desorption kinetics and solar energy direct drive heat storage are realized. The thermochemical energy storage composite material comprises a matrix with a bionic multi-scale mass transfer structure and hygroscopic inorganic salt uniformly loaded in the matrix, wherein the matrix is activated by KOH and then is loaded with the hygroscopic inorganic salt; the appearance of the base body imitates that of red blood cells, and the base body is in a single concave disc shape; and a vein-like layered directional vein network is arranged in the base body. The problems of moisture absorption and caking, slow mass transfer and low photothermal conversion efficiency of a traditional hydrated salt material are solved, and a new scheme is provided for efficient storage of renewable energy sources.

The invention belongs to the technical field of medicinal materials, and particularly relates to an anti-aging and anti-leakage soft capsule wall material and a preparation method thereof. The soft capsule wall material comprises the following raw materials in percentage by mass: 10%-15% of gelatin, 0.4%-2% of succinic anhydride, 4%-6% of glycerol, 0.08%-0.13% of sodium carboxymethyl cellulose and 78%-85% of purified water. The capsule material provided by the invention can simultaneously solve the problem of slow disintegration caused by an oxidation cross-linking reaction and the problem of leakage caused by strong hygroscopicity in the storage process, is simple in production process and high in safety, and has a very good application prospect in the field of soft capsule preparations.

The invention discloses a preparation process of a composite rotating wheel for adsorption and dehumidification in a low-dew-point environment, which comprises the following steps: adding metal salt into a solution of a mixed organic ligand, adding an organic solvent, mixing with water, completely dissolving, carrying out solvothermal reaction, cooling to remove unreacted monomers and impurities, cleaning, and drying to obtain an MIL-101 (Cr) precursor adsorption material; the method comprises the following steps: dipping an adsorption material in different hygroscopic salt solutions to obtain a modified adsorption material; carrying out activating treatment; preparing the activated MIL-101 (Cr) adsorption material into slurry, coating the surface of glass fiber paper with the slurry, drying the glass fiber paper, and feeding the glass fiber paper into a rotating wheel; according to the present invention, the regular pore channel of MIL-101 (Cr) is adopted as the carrier so as to uniformly disperse the hygroscopic salt, such that the capture efficiency of the water molecules under the low humidity is enhanced, and the equilibrium adsorption capacity and the adsorption dynamic performance of the material under the low dew point environment are significantly improved;

The invention relates to a warm cloud catalyst and a preparation method thereof, belongs to the technical field of artificial influence weather catalysts, and is used for solving at least one of the problems of poor hygroscopicity, poor catalytic performance, low dispersing performance, high relative humidity of initial moisture absorption and the like of the warm cloud catalyst prepared by the existing method. The warm cloud catalyst prepared by the method disclosed by the invention is of a single-layer coated SiO2 structure formed by a NaCl core, and the surface of the prepared SiO2 nano material contains hydroxyl (-OH) which can form hydrogen bonds with water, so that water vapor is more easily adsorbed, local high humidity is formed on the surface of NaCl, and the moisture absorption growth of NaCl is promoted. And the particle size of NaCl meets the range of 1-10 [mu] m required by a warm-cloud weather-modifying catalyst material, which is the basis of a good warm-cloud weather-modifying catalyst.

The invention provides a preparation method of a gelatin hemostatic composite material capable of being hydrated quickly, which comprises the following steps: S1) carrying out crosslinking treatment on a gelatin raw material to obtain a crosslinked gelatin material; s2) mixing the cross-linked gelatin material with an aqueous solution of hygroscopic inorganic salt to swell the cross-linked gelatin material; and S3) cooling and shaping the swollen crosslinked gelatin mixed material obtained in the step S2), and performing oriented freezing to obtain the gelatin hemostatic composite material. The invention also provides a rapidly hydratable hemostatic gelatin composite material and a hemostatic product. When the gelatin hemostatic composite material provided by the invention is in contact with a proper amount of aqueous medium, the hemostatic gelatin paste can be reconstructed by rapidly absorbing water through the micro capillary structure and the hygroscopic inorganic salt, so that the preparation waiting time before clinical use is shortened; meanwhile, the hemostatic gelatin composite material is a dry composition, so that the stability and shelf life of the product are improved.

The invention relates to the technical field of synthesis of organic silicon sulfonate, in particular to a preparation method of organic silicon sulfonate with both low-temperature toughening and flame retardance, which adopts a one-pot preparation technology, and solves the problems of stability, compatibility, hygroscopicity and the like of a traditional flame retardant by introducing sulfonate groups and utilizing a surface coating modification technology of a core-shell structure. Specifically, polysiloxane is adopted as an inner core carrier, silicon of a sulfydryl functional group is utilized, a sulfonate group is bonded through a sulfydryl alkene click chemical reaction, the sulfonate group is introduced into a side chain of the inner core carrier, sulfonate can effectively avoid the problem that small-molecule sulfonate is separated out in the inner core, and therefore the stability of the inner core carrier in the using process is guaranteed. Under the action of an initiator and a cross-linking agent, a sulfonate grafted organic silicon core is coated with a soft monomer and a hard monomer polymer, and a formed core-shell structure not only has a flame-retardant effect, but also has a low-temperature toughening effect.

The invention relates to the field of polymer composite materials, and discloses a bionic polymeric gel and a preparation method and application thereof, the gel comprises a hydrophobic continuous phase skeleton composed of siloxane, a styrene block copolymer and the like, and a hydrophilic network formed by in-situ polymerization of hydrophilic precursors such as super absorbent resin and the like and interpenetrating with the hydrophobic continuous phase skeleton. The preparation method adopts a continuous reaction extrusion process and comprises the following steps: firstly, melting and blending the main components, and then sequentially injecting the bifunctional interface anchoring agent, the skeleton protection type comonomer and the thermal initiator through a lateral charging port. According to the method, a chemical bond is constructed on a two-phase interface through an interface anchoring agent, and degradation of a hydrophobic skeleton is inhibited by using a skeleton protection type comonomer. The prepared gel is stable in structure, has excellent adhesion and high hygroscopicity, and can be used for preparing medical application, pressure-sensitive adhesive or transdermal absorption preparations.

The invention relates to the technical field of fabrics, and discloses an antibacterial fabric and a preparation method thereof.The preparation method comprises the steps that water, an organosilicon quaternary ammonium salt thymol finishing agent and a cotton / spandex blended fabric are added into a container, and then two-time dipping and two-time rolling, pre-drying and baking are conducted; the organic silicon quaternary ammonium salt thymol finishing agent contains phenolic hydroxyl groups, quaternary ammonium salt cations, ureido and other hydrophilic groups, so that the finished fabric shows good moisture regain and hydrophilic hygroscopicity, and the organic silicon quaternary ammonium salt thymol finishing agent contains a thymol natural antibacterial agent and organic silicon quaternary ammonium salt antibacterial groups, so that the antibacterial effect of the fabric is improved. The strong killing and inhibiting effects on bacteria and microorganisms are realized. The finishing agent is firmly attached to the surface of the fabric, so that the fabric is endowed with excellent antibacterial performance.

The invention discloses a passive radiation-evaporative cooling composite coating and a preparation method thereof. The passive radiation-evaporative cooling composite coating comprises a radiation cooling film on the upper layer and hygroscopic hydrogel on the lower layer. The radiation cooling layer with high sunlight reflectivity and high and medium infrared emissivity provides all-weather radiation cooling and protects the hydrogel on the lower layer from direct solar radiation; and the hydrogel can be evaporated and cooled in the daytime and can absorb moisture at night to realize self-regeneration. The invention has the advantages of low cost of required raw materials, simple preparation and large-scale production. The prepared double-layer cooling material has excellent and adjustable optical properties, the temperature of the double-layer cooling material is reduced by more than 15 DEG C under the direct irradiation of sunlight in the daytime, and meanwhile, the double-layer cooling material has a hydrophobic surface. As a refrigeration technology without power consumption and emission, the method is expected to reduce energy consumption and carbon emission of traditional refrigeration, and can be widely applied to spontaneous cooling of the surfaces of devices and facilities.

The invention relates to the field of textile fabrics, in particular to a multi-fiber all-in-one suede four-way stretch shark trouser warm-keeping suede fabric which comprises a weave 1 matched with weft plain stitch weave and made of nylon / polyester filament yarn core-spun elastic fiber spandex materials, a weave 2 adopting core-spun yarn of the weave 1 and matched with elastic spandex, and a weave 3 which is vertically connected double rib weave. Chemical fiber filaments and elastic fibers are adopted as connecting lines, and the weave 4 is a looped pile weave and is made of cellulose fibers with high hygroscopicity and excellent skin-friendly performance. Through the innovative combination of the weave 1 and the weave 4, the fabric has the multiple functions of fine appearance, four-side elastic property, bulge prevention, high elastic resilience, environmental protection, health, skin fitting, comfort, static resistance and the like, and meets the high requirements of underwear in autumn and winter for comprehensive performance.

The invention relates to the technical field of humidity control materials, in particular to a UV curing humidity control material and a preparation method thereof. The UV curing humidity control material comprises the following raw materials: UV resin, a reactive diluent, a photoinitiator and a humidity control additive, and the humidity control additive comprises one or more of hygroscopic salt, polysaccharide derivatives and polyhydric alcohols. The UV curing humidity control material provided by the invention adopts a substrate-free photocuring polyurethane system, on the basis of retaining an excellent humidity control effect, the UV curing humidity control material also adapts to the installation requirement of a narrow space in the camera, realizes rapid and convenient assembly, can be customized as required according to the specific size of the camera, and has good application flexibility; and meanwhile, the adhesive has the advantages of high curing speed and high production efficiency, and can still keep stable and excellent adhesive property after long-period aging, so that the long-term use reliability of the product is guaranteed.

The invention belongs to the field of hygroscopic materials, and discloses a copolymerization temperature-sensitive hygroscopic gel material and a preparation method and application thereof. The gel material is prepared by copolymerizing the following raw materials in percentage by mass: 0.5%-15% of a monomer A, 0.5%-15% of a monomer B, 5%-20% of hygroscopic salt and the balance of water, the monomer A is a temperature-sensitive monomer, and the monomer B is a hydrophilic monomer. By adjusting the mass ratio of the monomer to the salt, the critical conversion temperature and the moisture absorption and desorption performance of the material can be flexibly controlled. The material has the temperature-sensitive rapid dehydration characteristic of PNIPAM and the high swelling ratio characteristic of zwitter-ions, and low energy consumption, efficient moisture absorption and rapid water vapor release are achieved. The preparation method comprises the following steps: dissolving the components to prepare a precursor solution, introducing nitrogen to remove oxygen, initiating polymerization and forming at 20-60 DEG C; the obtained gel material shows excellent moisture absorption efficiency and cycling stability in the fields of water taking from air, heat management and heat storage, and has wide application value.