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614 results about "Hygroscopicities" patented technology

Plant leaf imitating hydrogel composite material and preparation method thereof

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.
Owner:JIANGNAN UNIV

Preparation method and application of novel ionized water gel-based moisture power generation material

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.
Owner:DALIAN UNIV OF TECH

Low-shrinkage and low-vacuum-deflation transparent composition photoresist and preparation method for preparing cured coating by using low-shrinkage and low-vacuum-deflation transparent composition photoresist

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.
Owner:JIANGSU BOYAN ELECTRONICS TECH

Crystal of quinoline-substituted compound

The present invention addresses the problem of providing a crystal of a compound having EGFR inhibition ability or a salt thereof, said crystal being excellent in the characteristic of stability (heat, purity) and / or low hygroscopicity. One aspect of the present invention provides a crystal form of (S)-N-(4-amino-6-methyl-5-(quinolin-3-yl)-8,9-dihydropyrimido[5,4-b]indolizin-8-yl)acrylamide that has a peak at a prescribed angle as the diffraction angle (2θ±0.2°) in a powder X-ray diffraction spectrum.
Owner:TAIHO PHARMA CO LTD

Aerosol moisture absorption and activation process observation system and observation method thereof

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.
Owner:JINAN UNIVERSITY

Active-passive integrated fireproof insulation board and preparation method thereof

The invention relates to an active and passive integrated fireproof insulation board and a preparation method thereof. The active and passive integrated fireproof insulation board comprises n passive fireproof layers and n or n + 1 active fireproof layers, the passive fireproof layer and the active fireproof layer are laminated into a whole; the passive fireproof layer comprises inorganic fiber felt and aerogel; the aerogel is obtained by curing an adhesive aerogel stock solution, and the stock solution comprises the following components in parts by mass: 1000-4000 parts of silica sol, 50-150 parts of silicate, 10-50 parts of a phosphate adhesive, 5-20 parts of quick lime, 5-50 parts of titanium dioxide, 10-50 parts of calcium stearate, 5-50 parts of a hydrophobic modifier, 5-50 parts of an acid-base regulator and 1000-4000 parts of a solvent; the active fireproof layer is at least one of inorganic fireproof plates such as a gypsum fireproof plate and the like which can actively consume energy after being heated and decomposed. The problems that an existing fireproof insulation board is high in organic matter content, poor in flame retardance and high in hygroscopicity, and the thermal insulation performance and safety are obviously reduced after the fireproof insulation board is used are solved.
Owner:CHINA STATE CONSTR HAILONG TECH CO LTD +1

Salt of substituted amino six-membered nitric heterocyclic compound, crystal form thereof, method for preparing same, and use thereof

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.
Owner:SHANGHAI RUNSHI MEDICAL TECH CO LTD +1

Methods for determining water content of hygroscopic solvents

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.
Owner:BRADY WORLDWIDE INC

Low-coupling flexible self-powered multi-mode sensor and preparation method and application thereof

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.
Owner:GUANGDONG UNIV OF TECH

Biochar-based immobilized microbial inoculum for promoting decomposition of litter and preparation method of biochar-based immobilized microbial inoculum

PendingCN120519443AFungiMicroorganism based processesBiotechnologyPhanerochaete
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.
Owner:HEBEI ACAD OF FORESTRY SCI

Preparation method of combustion type warm cloud catalyst

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.
Owner:CHINA METEOROLOGICAL ADMINISTRATION WEATHER MODIFICATION CENT

Preparation method of novel biomass hydrogel

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.
Owner:TIANFU YONGXING LAB

Fused salt recovery system based on steel belt cooling granulator

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.
Owner:SHANXI CHANGSHENG NEW ENERGY TECHNOLOGY CO LTD

A plant-leaf-like hydrogel composite and a preparation method thereof

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.
Owner:JIANGNAN UNIV

Moisture-absorbing warp-knitted fabric and clothes made of same

The utility model discloses a hygroscopic warp-knitted fabric and clothes made of the hygroscopic warp-knitted fabric. The moisture-absorbing warp-knitted fabric comprises a fabric body, the fabric body is formed by knitting a guide bar GB1 and a guide bar GB2 in a warp knitting mode, yarn laying of the guide bar GB1 is moisture-absorbing yarn, and yarn laying of the guide bar GB2 is elastic yarn; the ratio X / Y of the width X formed by the open loops of the fabric body to the width Y formed by the three adjacent closed loops on one side and the horizontal distance between the open loops and the closed loops is 1 / 4-1 / 3, and the angle alpha formed by an inlet extension line and an outlet extension line of a first yarn forming loop in the fabric body ranges from 90 degrees to 160 degrees. The moisture-absorbing warp-knitted fabric and the clothes made of the moisture-absorbing warp-knitted fabric are stiff, wide and stylish and have good moisture-absorbing and sweat-releasing effects.
Owner:SHANGHAI ANTA SPORTING GOODS CO LTD

Composite false twisted yarn

PendingJP2025017421AYarnPolyesterYarn
To provide a composite false twisted yarn having soft stretchability causing no binding feeling, high hygroscopic property, and dry touch while stretching according to motion of a body.SOLUTION: A composite false twisted yarn is constituted of a core part and a sheath part and has two-layer structure. The core part is polyamide-based filament and the sheath part is polyester-based filament. Stretch elongation rate of the composite false twisted yarn is 50 to 200%.SELECTED DRAWING: Figure 2
Owner:TORAY INDUSTRIES INC

Cationic antistatic agent containing hydroxyl and ether bond and preparation method thereof

The invention provides a cationic antistatic agent containing hydroxyl and ether bonds and a preparation method thereof, and belongs to the technical field of cationic antistatic agents. The preparation method comprises the following steps: carrying out neutralization reaction on amine substances and acid in a solvent to obtain an intermediate product; and reacting the intermediate product with glycidyl ether under the action of a catalyst to obtain the cationic antistatic agent. According to the prepared cationic antistatic agent, hydroxyl and ether bonds are introduced into the molecular structure, the hygroscopicity of the antistatic agent can be remarkably improved due to the existence of the hydroxyl, a conductive water film is formed, and therefore the conductivity and the antistatic performance of the surface of a material are enhanced; ether bonds can be combined with water molecules in air through hydrogen bonds to form a conductive channel, so that the antistatic effect is further improved. The antistatic agent prepared by the invention not only has excellent antistatic property, but also shows good smoothness, softness, water cleaning property, washing resistance and compatibility, and is suitable for various application scenes needing antistatic treatment.
Owner:CHINA RES INST OF DAILY CHEM IND

Transparent hygroscopic blister sheet

To provide a transparent hygroscopic blister sheet which is excellent in manufacturing suitability, is excellent in hygroscopic property while having a simple layer constitution, is excellent in visibility of a content because of being excellent in transparency before and after moisture absorption, shields moisture from outside, absorbs moisture in a packaged content storage part space, and can prevent the content from being degraded by moisture during transportation and storage for a long period, and a transparent hygroscopic PTP bottom material and a transparent hygroscopic PTP package, which are manufactured using the transparent hygroscopic blister sheet.MEANS FOR SOLVING THE PROBLEM: A transparent hygroscopic blister sheet has a moisture absorbing layer containing at least a specific moisture absorbent and a specific binder resin, and is excellent in high hygroscopic property, high total light transmittance and a low haze.SELECTED DRAWING: Figure 3
Owner:DAI NIPPON PRINTING CO LTD

A smoke generating agent for anti-hygroscopic cigarettes and its preparation method and application

The invention discloses an anti-hygroscopic cigarette smoke agent and a preparation method and application thereof. The anti-hygroscopic cigarette smoke agent is composed of a cigarette smoke agent encapsulated inside a hydrophobic microcapsule shell. The preparation process is as follows: dissolving the cigarette smoke agent, an inorganic acid and a surfactant in water to obtain a solution A, and dissolving the surfactant in a non-polar organic solvent to obtain a solution B; under stirring conditions, adding solution A to solution B for emulsification to obtain an emulsion; dropping a microcapsule shell precursor material into the emulsion, stirring the reaction, and subjecting the obtained product to a surface hydrophobic treatment. The preparation method is simple, low in cost, mild in conditions, and conducive to large-scale production. The prepared anti-hygroscopic cigarette smoke agent is added to a heat-not-burn cigarette, and has good anti-hygroscopic performance without affecting normal smoking.
Owner:CHINA TOBACCO HUNAN IND CORP

Heat preservation and storage polyester fiber and preparation method thereof

The invention relates to the field of chemical fibers, and provides a heat preservation and storage polyester fiber and a preparation method thereof. The heat preservation and storage polyester fiber is prepared from the following raw materials: a hollow nano material A with the porosity of 40-70%, an inorganic powder material B with a photothermal conversion function and moisture absorption modified polyester C with the moisture regain of 0.45-0.83%, the mass of A accounts for 0.1-3.5% of the mass of C, and the mass of B accounts for 0.1-4% of the mass of C. The preparation method of the heat preservation and storage polyester fiber comprises the following steps: uniformly mixing the polyester master batch containing the hollow nano material, the polyester master batch containing the inorganic powder material with the photo-thermal conversion function and the moisture absorption modified polyester chip, and then adding into a spinning machine for fiber forming. The air content in the fiber is increased by using the hollow nano material, and the heat insulation effect is improved; the direct temperature rise of the fiber is realized by using a photothermal conversion functional material; meanwhile, the hygroscopicity of the fiber is improved, certain heat is generated, and the heat preservation performance of the fiber material can be comprehensively improved through cooperation of the multi-stage heat preservation means.
Owner:ZHEJIANG HENGYI PETROCHEMICAL RES INST CO LTD

Moisture power generation fabric as well as preparation method and application thereof

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.
Owner:THE HONG KONG POLYTECHNIC UNIV

Low-hygroscopicity medium-temperature curing single-component epoxy adhesive suitable for bonding special-shaped structure composite material and preparation method of low-hygroscopicity medium-temperature curing single-component epoxy adhesive

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.
Owner:INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI

Novel wet foam foaming material for underground dust removal and use method of novel wet foam foaming material

The invention aims to provide a novel wet foam foaming material for underground dust removal and a use method thereof, and belongs to the technical field of dust suppressants. The wet foam foaming material comprises the following components in percentage by mass: 25-40% of a nonionic surfactant, 20-40% of an anionic surfactant, 10-20% of a foam stabilizer, 5-10% of a wetting agent, 5-10% of a hygroscopic inorganic salt coagulant and 5-10% of an emulsifier. The particle size of wet foam generated by the wet foam foaming material is concentrated and distributed in a range of 20-40 [mu] m, and the wet foam foaming material has the characteristics of high wetting speed, strong adhesion capability and good wind resistance compared with spray dust fall; the composite surfactant, the foam stabilizer and the emulsifier are added into the water, so that the continuity and reliability of the dust removal effect are remarkably improved.
Owner:SHANXI SHENGTAI TECHNOLOGY CO LTD +1

Novel composite fog dispersal catalyst formula and preparation method thereof

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.
Owner:CHENGDU UNIV OF INFORMATION TECH +1

Mineral reinforced PC / PBT alloy material with dimensional stability and warping resistance and preparation method of mineral reinforced PC / PBT alloy material

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.
Owner:NANJING YUEBEIST NEW MATERIALS TECH CO LTD

Zero-energy-consumption real-time photovoltaic panel passive cooling device

The invention discloses a zero-energy-consumption real-time photovoltaic panel passive cooling device, and belongs to the technical field of photovoltaic panel cooling. Zero-carbon operation of the system is achieved while real-time temperature drop of the photovoltaic panel is obtained, water vapor is cooled in time through the micro-channel-Janus micro-membrane, and the operation performance of the photovoltaic panel under various complex climate environment conditions is improved. Comprising a solar evaporative cooling system, a condensation circulating device and a water collecting device, the water collecting device and the condensation circulating device are connected through preset room-temperature cooling water, the cooling water serves as a cold source to promote condensation of water vapor in the condensation system, and waste heat of the system is collected to promote evaporation to provide a humidity environment for a hygroscopic medium. Water on the lower layer is evaporated under the combined action of waste heat of the photovoltaic panel and steam condensation heat release, and formed steam is diffused in the system so that a high-humidity environment can be formed. According to the method for forming high humidity by utilizing waste heat of the photovoltaic panel and steam condensation heat dissipation to evaporate water, the defect that the adsorption capacity of a hygroscopic medium is low under low humidity is fundamentally avoided.
Owner:NORTHEAST DIANLI UNIVERSITY

Flexible packaging material and preparation method and application thereof

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.
Owner:SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Self-preserving biodegradable environmental DNA filter

A filter assembly includes a housing having an inlet port, an outlet port, and an interior compartment, the inlet port and the outlet port fluidically coupled to form a flow path in the interior compartment, a filter membrane in the flow path, the filter membrane having a porosity capable of capturing biological molecules as liquid flows along the flow path, a fluid screen in the flow path on an opposite side of the filter membrane from the inlet port, and a desiccating element in the flow path comprised of one of a hygroscopic or hydrophilic material selected to absorb moisture from the filter membrane at ambient temperature.
Owner:SMITH ROOT INC

Atmospheric moisture absorption parameter processing method and device, equipment and storage medium

The invention discloses an atmospheric moisture absorption parameter processing method, device and equipment and a storage medium, and the method comprises the steps: calculating a time difference between a total particulate matter concentration data sequence and a cloud condensation nucleus concentration data sequence, correcting the time sequence deviation between the total particulate matter concentration data sequence and the cloud condensation nucleus concentration data sequence; judging whether the temperature of the cloud condensation nucleus counting instrument in each preset time period is kept stable or not, and then rejecting the cloud condensation nucleus concentration data sequence in the time period with unstable temperature; and according to the total particulate matter concentration data sequence and the cloud condensation nucleus concentration data sequence after multi-charge correction, fitting to obtain a corresponding atmospheric aerosol hygroscopic parameter activation particle size. According to the invention, the time sequence deviation between the total particulate matter concentration data sequence and the cloud condensation nucleus concentration data sequence can be automatically corrected, and the cloud condensation nucleus concentration data sequence in a time period with unstable temperature can be eliminated.
Owner:SUN YAT SEN UNIV +1

Anastomotic stoma reinforcing device and preparation method and application thereof

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.
Owner:SHANGHAI CINGULAR BIOTECH