83 results about "Hygroscopic Agents" patented technology

The invention relates to the technical field of rust-proof treatment of metal products, in particular to a rust-proof discoloration-proof packaging system and method for a bronze-plated tire bead wire. The system sequentially comprises a cleaning unit, a surface treatment unit, a drying box, a film coating device, a cooling unit, a post-treatment unit, a take-up device and a packaging system according to the process. The core of the process method is as follows: the steel wire is immediately coated with a special antirust film coating agent to be cured by using waste heat generated after the steel wire is dried, and the film coating agent comprises water-based resin, a silane coupling agent, a conductive polymer, a nano filler and benzotriazole; during packaging, an intelligent packaging system with a built-in humidity response humidity control bag is adopted, and the humidity control bag can automatically release inert gas and a moisture absorbent when the environment humidity reaches a preset threshold value. Multiple synergistic protection on the surface of the steel wire is achieved, the anti-rust period is remarkably prolonged to 12 months or above through dynamic humidity control, meanwhile, the bonding performance and the retention rate of the steel wire and rubber are improved, and energy conservation and environment protection are achieved.

The invention discloses a novel wet flue gas desulfurization composite synergistic additive and a preparation method thereof, and relates to the technical field of flue gas desulfurization. The novel wet flue gas desulfurization composite synergistic additive comprises the following raw materials in parts by weight: 15-25 parts of organic acid, 10-20 parts of organic salt, 5-10 parts of inorganic salt, 4-5 parts of a wetting agent, 5-8 parts of a moisture absorbent and 5-15 parts of an accelerant. The prepared novel wet flue gas desulfurization composite synergistic additive has good calcium carbonate dissolution rate and calcium sulfite oxidation rate, and the desulfurization efficiency is high.

The utility model relates to the technical field of packaging paperboards, in particular to a waterproof and moistureproof environment-friendly packaging paperboard which comprises a base material layer, a waterproof layer and a moistureproof layer, the waterproof layer is arranged on the outer side of the base material layer and made of a mixture of nano silicon dioxide and natural wax, and the moistureproof layer is arranged on the outer side of the waterproof layer and made of a mixture of nano silicon dioxide and natural wax. The waterproof layer is made of a composite material of modified starch and cellulose derivatives, the waterproof layer and the moisture-proof layer are connected through a nano-microporous structure, the nano-microporous structure is filled with a moisture absorbent, a groove is formed in the surface of the base material layer, the groove is filled with reinforced fibers, and a biodegradable film is further arranged between the waterproof layer and the base material layer. The waterproof and moistureproof environment-friendly packaging paperboard not only has excellent waterproof and moistureproof performance, but also meets the environment-friendly requirement, the production process is safe and harmless, meanwhile, the paperboard retains good air permeability and printing adaptability, and is suitable for various packaging requirements.

The invention discloses an opencast coal mine truck transportation road dust suppressant for a high-temperature dry environment and a preparation method of the opencast coal mine truck transportation road dust suppressant. The dust suppressant is prepared by mixing 20-30% by mass of glucose, 0.05-0.15% by mass of a penetrant, 1.5-2.5% by mass of a water-retaining agent, 1.5-2.5% by mass of a moisture absorbent and the balance of water. The dust suppressant is an environment-friendly material, the main material glucose is a monosaccharide which is most widely distributed and most important in nature, and the dust suppressant has the characteristics of being non-toxic, odorless, green, environment-friendly, wide in source and application and the like. The dust suppressant integrates the functions of wetting, moisture absorption, water retention and the like, can keep dust on a road surface transported by a large mine truck of an open pit coal mine wet and effectively suppress flying dust on the road surface, is simple in preparation process, low in material cost, green and environment-friendly in material and wide in material source, and has good flowability and feasibility. The dust suppressant is applied to the open pit coal mine end slope transportation road, the environment quality and the traffic safety of the open pit coal mine can be effectively guaranteed, and the manpower and material resource investment of environment maintenance is reduced.

The utility model discloses a packaging bag designed according to the 3R concept, which comprises a first thin film material, a second thin film material and a non-woven fabric material, the non-woven fabric material and the first thin film material are bonded through sealing and ironing, and a plurality of independent dry moisture absorbent packaging cavities are formed between the middle part of the inner side of a bag body and the bag bottom. The side, close to the bag bottom, of the dry moisture absorbent packaging cavity is sealed through a first clamping chain so that the dry moisture absorbent can be conveniently replaced, the second thin film material and the first thin film material of the sealed non-woven fabric material can be sealed and bonded to form a product containing cavity, and the end, opposite to the bag bottom, of the second thin film material is not sealed to form a bag opening. According to the packaging bag designed according to the 3R concept, multiple contradictions between functionality and environmental protection of traditional moisture-proof packaging are successfully solved, the 3R principle is integrated into packaging design, and the unification of reduction, reutilization and recoverability is achieved through an independent cavity, a replaceable structure and a single material system.

The application discloses a kind of based on poly-lactic acid oriented fiber's synergistic refrigeration super fabric and its preparation method, comprising the following steps: S1, zirconium salt, fumaric acid is uniformly dissolved in solvent, then microwave-ultrasonic wave is cooperated, solvent is removed, dried, high-temperature activation treatment, obtain high reflectivity MOF-801 porous nanocrystal;S2, after porous MOF-801 nanocrystal is uniformly dispersed, hygroscopic salt is impregnated into MOF-801 pore, solvent is removed, dried, obtain MOF-801 confined hygroscopic agent;S3, with poly-lactic acid and MOF-801 confined hygroscopic agent as raw material, by electrospinning technology, based on poly-lactic acid oriented fiber's synergistic refrigeration super fabric is prepared.The super fabric not only has excellent atmospheric water collection performance, high infrared emissivity and high solar reflectivity, but also has biocompatibility, degradability, it is a kind of high-performance synergistic refrigeration material with wide application prospect.

A moisture barrier composition includes polymer resin 10 weight percent (wt. %) to 50 wt. %, plasticizer 10 wt. % to 50 wt. %, pigment 0.01 wt. % to 2 wt. %, liquid heat and UV stabilizer 0.01 wt. % to 2 wt. %, anti-settling agent 0.01 wt. % to 2 wt. % or thickening agent 0.5 wt. % to 5 wt. %, a first filler 5 wt. % to 50 wt. %, a second filler 5 wt. % to 50 wt. %, moisture scavenger 0.5 wt. % to 5 wt. %, and catalyst 0.01 wt. % to 2 wt.

The present disclosure relates to a method for modifying the shape of permeable fibers, such as keratinous fibers, enabling in particular styling of mammalian hair fibers. The method comprises applying to the fibers a composition comprising a natural polymer and a fatty agent, both being water-insoluble and jointly polymerizable, and a water-soluble hygroscopic agent, all afore-said ingredients being small enough to permit their penetration within the fibers; leaving the composition on the fibers for sufficient time so that at least part of said materials penetrate within the fibers; and curing the water-insoluble ingredients to internally form a shapeable polymer capable of maintaining the fibers in a desirable shape. Compositions adapted for such method and kits allowing to prepare the same are also disclosed.

Disclosed is a ceramic moisture absorbent which comprises a plurality of fibrous particles that are formed of a ceramic which contains titanium, potassium, and oxygen. The plurality of fibrous particles form a plurality of pores between each other. The plurality of fibrous particles have specific pores that have a pore diameter of 10-80 nm inclusive as measured by a gas adsorption method. The total pore volume of the specific pores is 1 cm3 / g or more per unit mass of the ceramic moisture absorbent.

The present invention provides a dehumidifier that ensures a sealing effect and prevents leakage of the calcium chloride liquid hygroscopic agent. [Solution] The dehumidifier includes a dehumidifying bag. The dehumidifying bag includes a breathable sheet section 2 and a non-breathable strip section 3 on the breathable side, and a non-breathable sheet section 1 on the non-breathable side. A double-sided sealing section 6 is provided in the center of the dehumidifying bag, which partitions the internal space surrounded by the non-breathable sheet section and the breathable sheet section. This double-sided sealing section divides the internal space into a fragrance material storage section 4 and a moisture-absorbing material storage section 5. A non-breathable strip section is provided at the opening of the moisture-absorbing material storage section. By providing the double-sided sealing section, the internal space of the dehumidifying bag is partitioned, and the fragrance material and moisture-absorbing material can be filled separately, thereby preventing mutual interference. In addition, by providing the non-breathable strip section, heat welding of the same material is possible after filling with the moisture-absorbing material, ensuring a sealing effect and preventing leakage of calcium chloride liquid.

This utility model discloses a dehumidification device for coking coal storage, comprising a hollow, through-hole housing, with symmetrically distributed support bases fixedly connected to the bottom of the housing. This utility model belongs to the technical field of dehumidification equipment, specifically addressing the problems of natural ventilation being greatly affected by ambient temperature and humidity, the limited moisture absorption capacity of ordinary desiccant requiring frequent replacement, and the high energy consumption and uneven heat distribution of some electrically heated dehumidification devices, which easily accumulate dust inside the equipment, making cleaning difficult and affecting long-term performance.

The invention provides a novel chromium-free self-lubricating anti-corrosion aluminum coating as well as a preparation method and application thereof. The aluminum coating comprises the following components in percentage by weight: 20-40% of boron modified phenolic resin, 1-6% of epoxy resin, 7-30% of a lubricant, 5-10% of a wear-resistant agent, 2-5% of a moisture absorbent, 5-20% of aluminum powder, 2-5% of a thixotropic agent, 5-10% of an anticorrosive filler, 0.5-1.5% of an adhesion promoter, 1-2% of an anti-settling agent, 1-2% of a dispersant, 2-8% of a flexibilizer and the balance of an organic solvent, wherein the organic solvent comprises ethanol and butanone in a weight ratio of 1: (1-2). The aluminum coating is applied to preparation of a self-lubricating anti-corrosion aluminum coating on the surface of a fastener. According to the method, preparation of the chromium-free self-lubricating anti-corrosion aluminum coating and the aluminum coating is achieved, and the corrosion resistance and the assembly efficiency of aviation fasteners are greatly improved through the anti-corrosion and self-lubricating performance of the aluminum coating.

The invention relates to a Janus structure eutectic gel, a preparation method and application in water trapping and environmental humidity control, and provides a confinement foaming strategy for preparing Janus structure eutectic gel (JEGs) composed of a porous body and a non-porous layer covering the porous body at low cost. The unique structure and component endow the JEGs with huge air contact area and excellent light capture capability, so that compared with the traditional eutectic gel, the JEGs are remarkably enhanced in the aspects of water capture and solar-driven water desorption efficiency. The JEGs serving as a moisture absorbent can be applied to a solar-driven AWH system, in addition, the JEGs can naturally and passively adjust the relative humidity of the microenvironment within a certain range, and the JEGs are suitable for storage and preservation of fresh food.

The invention relates to a photovoltaic cell driven infrared water glass-based water-soluble core targeted curing method which comprises the following steps: 1, uniformly mixing 100 parts by weight of water-soluble salt powder, 10-15 parts by weight of an inorganic solid waste inert filler, 6-10 parts by weight of chopped glass fiber waste silk, 4-5 parts by weight of water glass, 0.1-0.5 part by weight of an infrared energy absorbent and 0.04-0.05 part by weight of an anti-moisture-absorption agent, obtaining a water glass viscous mixture; 2, molding the viscous mixture obtained in the previous step as required to obtain a core blank; and 3, putting the core blank into an infrared curing oven driven by a photovoltaic cell, and carrying out rapid infrared targeted curing to obtain a water glass-based water-soluble core finished product. The prepared soluble salt core is high in strength, easy to collapse and good in moisture absorption resistance, most of the materials are industrial byproducts and solid waste, the cost is low, and obtained castings are high in size precision and surface smoothness and can be used for die casting of aluminum, magnesium alloy and the like.

This invention discloses an online prediction method and system for the remaining lifespan of desiccant in a maintenance-free intelligent desiccant, belonging to the field of power equipment condition monitoring and predictive maintenance technology. This method fully utilizes the built-in temperature and humidity sensors of the maintenance-free desiccant to obtain the average regeneration temperature and average humidity load for each desiccant-regeneration cycle. By calculating the damage fraction caused by a single cycle and accumulating these values, the cumulative damage degree is obtained, ultimately achieving a quantitative and online prediction of the remaining lifespan of the desiccant. This method solves the problem of inaccurate maintenance caused by traditional desiccant replacement relying on fixed cycles or experience-based judgment, realizing a shift from preventative maintenance to predictive maintenance, improving equipment reliability and reducing maintenance costs.

This application relates to the field of packaging films, and in particular to a self-absorbing moisture-absorbing film material and its preparation method. The self-absorbing moisture-absorbing film material comprises, from the outside to the inside, a corona layer, a barrier layer, and a moisture-absorbing layer. The barrier layer uses a combination of high-moisture-barrier HDPE and processable LDPE and LLDPE, resulting in good barrier properties, flexibility, tensile strength, and durability. A desiccant is incorporated into the moisture-absorbing layer, which absorbs moisture from inside the packaging or permeates through the barrier layer. The combination of a barrier layer with high barrier properties and a moisture-absorbing layer with good moisture absorption properties in the self-absorbing moisture-absorbing film material results in packaging bags with excellent barrier performance.

The present application relates to the daily chemical technical field, especially to a three-dimensional water-locking moisturizing composition and a preparation method and application thereof.The preparation raw material of the composition comprises: an aqueous phase, an oil phase and an emulsifier; wherein the oil phase comprises: butyrospermum parkii butter, cetyl stearyl alcohol olivate, sorbitan olivate and polymethylsilsesquioxane.The moisturizing cream provided by the present application has double effects: water supplementing + water locking, contains a moisture absorbent, can absorb moisture in the environment and deliver it to the skin surface, and helps the skin to keep moist; water locking: contains a moisturizing agent, forms a protective film on the skin surface, and reduces water loss.

The invention belongs to the technical field of fogging agent formulas, and discloses a high-efficiency environment-friendly polyol cold fogging agent and a preparation method thereof, and the cold fogging agent comprises the following components by mass: 10-30 wt% of a moisture absorbent, 3-10 wt% of a fogdrop stability regulator, 2-10 wt% of a fogdrop particle size optimizer, 8-28 wt% of a functional synergist, and 24-77 wt% of water. The functional synergist is prepared by compounding xylitol and glycine in a mass ratio of (30-80): (20-70). The cold fog aerosol can be efficiently atomized at normal temperature without high temperature or high pressure, and the local temperature can be reduced by 10 DEG C or above within a short time by using the aerosol in a high-temperature environment. No harmful chemical agent is used in the formula, and all the components are environment-friendly materials, so that the environment can be purified while the pollution to the environment is avoided, and the environment-friendly requirement is met. Cold fog particles formed after the aerosol is sprayed can be quickly diffused to form a large-area stable shielding layer, so that vision and infrared detection equipment of enemies can be effectively interfered.

The invention relates to a durable bio-based PUR hot melt adhesive suitable for a high-humidity environment and a preparation method thereof.The preparation method comprises the steps that firstly, polybasic acid, bio-based dihydric alcohol, polyester trihydric alcohol, siloxane modified polyether polyol, an antioxidant, bio-based tackifying resin and bio-based isocyanate are subjected to a heating reaction, and a prepolymer is obtained; and heating and mixing with a catalyst, a moisture absorbent and a chain extender, and curing. Compared with the prior art, the PUR prepolymer is synthesized by selecting bio-based components with excellent hydrolysis resistance, so that PUR not only meets the bonding strength in a high-humidity environment, but also has the environment-friendly characteristic of a bio-based material; meanwhile, the hydrophobic protection function of siloxane modified polyether polyol, hydrolysis inhibition of a weak acid microenvironment constructed by polyacid and the stabilization effect of a hydrolysis-resistant chain extender on molecular chains are matched, so that the hydrolysis resistance and high-humidity environment adaptation stability of an adhesive layer are improved, and the durability and application value of the adhesive layer in a high-humidity environment are improved; and a feasible scheme is provided for green lamination of materials in a high-humidity environment.

The application discloses a foamed metal-based atmospheric water-absorbing passive heat dissipation material and a preparation method, and relates to high-efficiency passive heat dissipation materials.The foamed metal is used as a framework, and a layer of interconnected carbon nanotubes is grown on the surface of the framework by a flame method.The interconnected structure of the carbon nanotubes can make heat quickly and uniformly conduct to a heat dissipation surface, and the high surface emissivity characteristic of the carbon nanotubes can effectively improve the radiation heat dissipation capacity.On this basis, a hygroscopic agent material is anchored to the surface of the carbon nanotubes, and the atmospheric water-absorbing passive heat dissipation material with remarkable heat dissipation performance is prepared.

The invention discloses a silicon-free core mold material and a preparation method thereof. According to the material, traditional PVA, PVP, urea and silicon-containing filler are abandoned, a sodium alginate polyacrylic acid dynamic cross-linking system is introduced, modified starch porous microspheres and a low-cost moisture absorption resisting agent (such as zinc stearate) are combined, and high strength (compressive strength is larger than or equal to 15 MPa), rapid water solubility (dissolution rate is larger than or equal to 1.0 g / min), low moisture absorption (moisture absorption rate is smaller than or equal to 2.0%) and environment friendliness of a core mold are achieved. The method is suitable for precise forming of complex inner cavity castings such as aero-engine blades, and solves the problems that a traditional material is high in hygroscopicity and insufficient in mechanical property, and the surface quality of a wax mold is affected by silicon-containing filler ash residues.

The utility model relates to a dehumidification box, in particular to a reusable environment-friendly dehumidification box. A reusable environment-friendly dehumidification box comprises a plastic upper cover, an outer shell, a discharging box, a water collecting box, a water outlet and a blocking block, the plastic upper cover is connected to the outer upper portion of the outer shell in a covering mode, a plurality of air inlets distributed transversely are formed in the plastic upper cover, the discharging box is placed on the inner upper portion of the outer shell, and the water collecting box is placed on the inner lower portion of the outer shell. A water outlet is fixedly connected to the left rear side of the lower part in the water collecting box; and a plug block is plugged in the lower end of the water outlet. Through the arrangement of the hanging mechanism, the shell can be hung on a clothes rail of a wardrobe, then the shell is located at a high position, the moisture absorption range of the dehumidification box can be enlarged, the dehumidification box can be prevented from being accidentally knocked over in the daily clothes arrangement process, and therefore inconvenience caused by moisture absorbent scattering is avoided; the dehumidification effect is guaranteed, and the possible extra cleaning burden is reduced.

The present invention addresses the problem of providing a moisture absorbent capable of effectively suppressing or preventing oil leakage over a long period of time. [Solution] The present invention relates to an ultraviolet-curable moisture absorbent which is a curable composition containing moisture absorbent particles and a binder, and which is characterized in that: (1) the binder contains an ultraviolet-curable two-liquid reactive silicone; and (2) the viscosity (20 DEG C) of the curable composition is 10-200 Pa * s after the mixed reaction of the two liquids of the ultraviolet curable two-liquid reactive silicone and before the ultraviolet irradiation.

The invention belongs to the field of air dehumidification applied to air conditioners and industrial production, and particularly relates to a dehumidification system with a double-circulation ventilation system. The invention provides a dehumidification system with a double-circulation air exchange system, the dehumidification system of the double-circulation air exchange system is realized by adopting a partition dehumidification wheel, the dehumidification system comprises a first circulation air exchange system and a second circulation air exchange system, and the dehumidification system has three working states, namely an initial state, a first working state and a second working state. A double-circulation ventilation mode is adopted, heat generated after the moisture absorbent is regenerated can be effectively utilized, production energy consumption is reduced, the utilization efficiency of the moisture absorbent is improved, the moisture absorption efficiency is obviously improved, the regeneration frequency is reduced, the service life of the moisture absorbent is prolonged, the moisture absorption time is conveniently and automatically regulated and controlled, and the device is suitable for factory automatic transformation and has a wide application prospect. Cost is reduced; and labor efficiency is improved.

The invention relates to the technical field of high polymer materials, in particular to a hydrogel composite material as well as a preparation method and application thereof. The hydrogel composite material comprises the following components in parts by weight: 40-50 parts of polyvinyl alcohol, 5-8 parts of sodium alginate, 2-5 parts of a cross-linking agent, 20-30 parts of a moisture absorbent, 10-20 parts of a flame retardant, 1-2 parts of a smoke suppressant and 2-4 parts of carbon fibers. The moisture absorbent comprises porous silica gel microspheres and calcium chloride nanoparticles. The moisture-absorbing fireproof door has the advantages of being good in moisture-absorbing performance, fireproof performance, mechanical performance and stability.

The invention relates to the technical field of heating agents, in particular to a liquid carbon dioxide cracker heating agent and a preparation method thereof. The liquid carbon dioxide cracker heating agent comprises the following raw materials in parts by weight: 32-52 parts of a strong oxidant, 16-26 parts of a reducing agent, 6-10 parts of a catalyst, 1-16 parts of a combustion improver, 4-8 parts of a moisture absorbent and 3-5 parts of a stabilizer. The strong oxidant and the reducing agent release heat through an oxidation-reduction reaction, the catalyst accelerates the reaction process, the combustion improver optimizes the combustion efficiency, the moisture absorbent regulates and controls the system humidity to prevent moisture, and the stabilizer inhibits particle aggregation and buffers the reaction intensity through a porous structure and surface modification. Through the synergistic effect of the raw materials, heating of the heating agent is stable, ignition is reliable, the energy requirement of a liquid carbon dioxide fracturing device is met, and it is guaranteed that the fracturing process is safe and controllable.

The invention belongs to the technical field of polymer separation membrane preparation, and particularly relates to a method for in-situ preparation of polydopamine in a polymer membrane casting solution system. The method comprises the following steps: dissolving dopamine in a solvent, and adding a polymer material, an inorganic moisture absorbent containing hydrated ions and an oxidizing agent to obtain a polymer membrane casting solution; in a polymer membrane casting solution system, dopamine molecules are guided to be subjected to directed auto-polymerization in the polymer molecular chain direction, polydopamine is generated in situ, and the PDA modified polymer membrane is obtained through defoaming, membrane scraping and phase separation. According to the invention, by constructing a polymer membrane casting liquid system containing specific hydrated ions and a weak oxidant, the directional and efficient polymerization of dopamine along a polymer molecular chain is realized, and PDA synthesis and a membrane forming process are integrated. According to the method, the problems that a traditional PDA modification process is tedious, low in efficiency and low in raw material utilization rate are solved, and the hydrophilicity, permeation flux and anti-pollution performance of the prepared PDA modified polymer membrane are remarkably improved.

An ambient energy converter includes a housing having an upper portion and a lower portion. The housing lower portion has a hydrophobic material portion. The upper portion has a vent opening in fluid communication with ambience. The housing contains a mass of hygroscopic within the housing lower portion that is in fluid communication with the hydrophobic material portion. An ion conductive membrane electrode assembly is coupled to the housing to allow the passage of ionized water or water vapor through the ion conductive membrane electrode and into contact with the hygroscopic solution. An air conduit may be coupled to the housing to provide an airflow to the ion conductive membrane electrode and / or hydrophobic material portion.

The radon adsorption material comprises a moisture absorption layer and an adsorption layer which are sequentially arranged in the filtering direction, the moisture absorption layer comprises two fiber layers and a moisture absorbent, the moisture absorbent is arranged between the two fiber layers and is an activated aluminum oxide ball, the adsorption layer comprises a fixing layer and an adsorbent, and the fixing layer and the adsorbent are sequentially arranged in the filtering direction. The number of the fixed layers is two, the adsorbent is arranged between the two fixed layers, and the adsorbent is modified bamboo activated carbon. The radon adsorption filter element comprises a base, two separation nets, a cover plate and the radon adsorption material, the cover plate and the base are correspondingly arranged, the radon adsorption material is arranged between the cover plate and the base, and the two separation nets are arranged at the two side ends of the radon adsorption material respectively. Activated aluminum oxide is used for preferentially absorbing moisture, the humidity around the modified bamboo activated carbon is reduced, water molecule competition is reduced, and the radon adsorption capacity of the radon adsorption material is improved; hydroxyl groups on the surface of alumina are increased after moisture absorption, radon molecules are fixed through hydrogen bonds, and the radon adsorption capacity of the material is improved.

A cooling pad, a method of making the cooling pad, and a method of using the cooling pad are provided. Such a cooling pad includes a hydrogel layer, a protective backing layer coated with a first adhesive layer, and a second adhesive layer. The backing layer coated with the first adhesive layer, and the second adhesive layer are disposed on two different sides of the hydrogel layer. The hydrogel layer comprises a base polymer as a first base ingredient for the hydrogel layer, a second base ingredient for the hydrogel layer, and an additive or filler, which may include a moisture absorbing agent, a stabilizing agent, an antimicrobial agent, a photothermal agent, or any other additive or filler, or any combination thereof.