11results about How to "High moisture absorption" patented technology

The invention relates to the technical field of hygroscopic materials, and particularly discloses an atmospheric hygroscopic material for ecological restoration of arid-semi-arid regions and a preparation method of the atmospheric hygroscopic material. The method comprises the following steps: firstly preparing gel containing a heat-conducting material, acrylamide and isopropyl acrylamide, freeze-drying the swelled gel, soaking the gel in a moisture-absorbing salt water solution to load moisture-absorbing salt, taking out and drying. The temperature sensitivity of isopropylacrylamide is retained through copolymerization of acrylamide and isopropylacrylamide monomers, meanwhile, higher hydrophilic performance is given to isopropylacrylamide, a high-molecular polymer can absorb liquid drops formed by deliquescence of moisture absorption salt, continuous adsorption of the moisture absorption salt is kept, and the polymerized gel has higher moisture absorption capacity and water yield. The prepared atmospheric hygroscopic material provides a new way for supplying water required by ecological restoration plants in arid-semi-arid regions, water vapor is collected without depending on an external device in use, and the water production process is free of energy consumption and emission and environmentally friendly.

The invention relates to the technical field of fabric functional finishing agents, and discloses a finishing agent capable of absorbing moisture, heating and eliminating peculiar smell as well as a preparation method and application of the finishing agent, and the finishing agent comprises the following components in parts by mass: 10-15 parts of an adsorbent, 15-20 parts of a polyurethane adhesive, 20-30 parts of a resin softening agent and the balance of water; the adsorbent is an iron-based MOF material with hydrophilicity, and MOF is a porous adsorption material with a three-dimensional network structure, wherein the porous adsorption material is obtained by assembling central Fe < 3 + > ions and organic ligands; a central Fe < 3 + > ion structure exists in the form of [Fe (OH) (COO) 2] n and [Fe3 (mu3-O) (COO) 6] clusters; the organic ligand is formed by compounding a main ligand and an auxiliary ligand, the main ligand is aromatic organic acid with a triangular plane structure, and the auxiliary ligand is at least one of bipyridine, diimidazole benzene and biphenyl with a linear structure. The finishing agent is a porous adsorption material based on the MOFs structure, has the composite functions of moisture absorption, heating and peculiar smell elimination, is fast in moisture absorption, large in moisture absorption capacity and reversible in moisture absorption process, and can be applied to functional after-finishing of textiles.

The invention discloses menstrual period physiology underpants cloth and a manufacturing process thereof, the menstrual period physiology underpants cloth comprises first bamboo fiber towel cloth, second bamboo fiber towel cloth and third bamboo fiber towel cloth, the first bamboo fiber towel cloth is uniformly soaked with an anti-mildew antibacterial agent; the second bamboo fiber towel cloth is uniformly soaked with an anti-mildew antibacterial agent, and the second bamboo fiber towel cloth is adhered to the back surface of the first bamboo fiber towel cloth; and the TPU middle permeable membrane is adhered to the back surface of the second bamboo fiber towel cloth. The menstrual period physiology underpants fabric is simple in structure, soft in overall texture, good in body feeling, good in moisture permeability, moisture absorption and leakage prevention performance, antibacterial, capable of removing peculiar smell and capable of being recycled.

The invention provides a fiber composite membrane material with humidification and dehumidification functions and a preparation method and application thereof, and belongs to the technical field of composite membrane materials.The fiber composite membrane material comprises non-woven fabric made of polyester fibers and a drying agent, and the polyester fibers are porous polyester staple fibers; the drying agent is uniformly loaded and stably fixed on the surface of the porous polyester fiber, the inner wall of the porous structure and in fiber gaps of the non-woven fabric. According to the fiber composite membrane material, the non-woven fabric made of the polyester fibers of the porous structure serves as a base material, the porous structure enables liquid water to be rapidly diffused, the low hygroscopicity of the polyester is combined, the liquid water is easy to desorb, and the humidification rate is increased; meanwhile, the porous structure of the porous polyester fiber serves as a loading site of the drying agent, leakage of the liquid drying agent is prevented while efficient dehumidification is achieved, the stability of the base body non-woven fabric material can be improved through the coated porous polymeric membrane, and the porous polymeric membrane can also serve as a second barrier for preventing leakage of the liquid drying agent; therefore, the fiber composite membrane material has humidifying and dehumidifying functions.

The present invention provides an automatically opening composite material and clothing. An automatically opening composite material, the automatically opening composite material comprises a fabric layer, a cutout and a composite layer group, the cutout and the composite layer group are placed on the fabric layer, the composite layer group comprises: a hydrophilic functional layer, the moisture absorption rate of the hydrophilic functional layer is higher than that of ordinary materials; a hydrophobic functional layer, the moisture absorption rate of the hydrophobic functional layer is lower than that of ordinary materials; an adhesive film, the adhesive film glues the composite layer group into one; wherein, when the fabric layer at the position of the composite layer group is in a dry environment, the cutout is in a closed state; when the fabric layer at the position of the composite layer group is in a humid environment, the cutout is in an open state. The structural design of the present invention is ingenious, when the composite material is humid or the human body sweats, the cutout automatically opens, increasing the contact area between the skin and the outside air, facilitating the evaporation of sweat and the dissipation of heat, and improving the wearing comfort of the clothing.

The invention discloses a device for detecting NO and H2S in oral cavity gas, which is applied to the technical field of gas component analysis and detection, and comprises: a gas collection device, which comprises a sampling and filtering module; the filtering module is internally provided with two channels, namely an air suction channel filled with filtering particles and a moisture filtering channel filled with drying particles; the sampling module comprises a connecting part, a collecting part fixedly arranged at one end of the connecting part and a sampling channel penetrating through the collecting part and the connecting part; an air inlet and an air outlet which are communicated with the sampling channel are formed in the connecting part, the air inlet is communicated with the air suction channel, and the air outlet is communicated with the moisture filtering channel; the gas analysis device comprises a gas extraction control module and a detection module, one end of the gas extraction control module is communicated with the moisture filtering channel, and the other end is communicated with the detection module; the detection module comprises a CO2 sensor, an H2S sensor, an NO sensor, a gas filter and a buffer chamber which are connected in series. The component detection precision of the oral cavity gas is improved.

The application discloses a hydrogel with a directional conical porous structure and a preparation method thereof, and belongs to the technical field of atmospheric water collection.The directional conical porous structure hydrogel with atmospheric water collection capacity is prepared by first preparing a uniform sodium alginate solution and an acid solution respectively, then pouring the sodium alginate solution into a mold, adding the acid solution, and finally obtaining the hydrogel with the directional conical porous structure through an acid-induced phase separation process.Compared with traditional hydrogels, the hydrogel obtained by the application not only has a rapid moisture absorption-desorption efficiency, but also has excellent cycle stability.In a plurality of moisture absorption-desorption cycles, the hydrogel can maintain a high moisture absorption amount, reduce moisture absorption salt loss, and prolong the service life of the material; and the preparation process of the application is simple, the cost is low, the environmental friendliness is high, and industrial production can be realized.

The present invention discloses an industrial preparation method of high-quality Jianpi Qinghua granules, comprising the following steps: S1 preparation of extract; S2 preparation of precipitate; S3 preparation of precipitate; S4 preparation of concentrated powder; S5 preparation of granules. The present invention uses a neutral ethanol solution to reflux extract the Jianpi Qinghua medicinal material slices at a specific temperature, and the extract is successively acid-precipitated and alkaline-precipitated, thereby avoiding the compatibility reaction of active ingredients such as berberine and baicalin, and at the same time, appropriate process flow and parameters avoid chemical reactions between ingredients and changes in material basis caused by high temperature, thereby improving the quality of Jianpi Qinghua granules, ensuring their efficacy, and having the value of industrial promotion and application.

The present application discloses an impermeable concrete and a preparation process thereof, and relates to the field of concrete. The raw materials of an impermeable concrete include: 380-460 parts of cement, 120-200 parts of fly ash, 650-800 parts of sand, 1000-1200 parts of stone, 10-20 parts of water reducer, 50-70 parts of expansion agent, 50-65 parts of modified nano-silicon dioxide, 12-20 parts of composite fiber, and 140-200 parts of water; the modified nano-silicon dioxide raw materials include: 58-70 parts of nano-silicon dioxide, 12-18 parts of silane coupling agent, 2-5 parts of sodium silicate, and 180-240 parts of deionized water; the The composite fiber consists of modified polyvinyl alcohol fiber, glass fiber and steel fiber, wherein the modified polyvinyl alcohol fiber raw materials include 36-48 parts of polyvinyl alcohol fiber, 1.7-3.5 parts of dioctyl adipate, 3-5 parts of silane coupling agent, 45-68 parts of ethanol, 1-3 parts of sodium persulfate, 12-18 parts of alkyl acid polyoxyethylene ether, 35-49 parts of deionized water and 7-13 parts of polyethylene glycol; by modifying the nano-silica and polyvinyl alcohol fiber, the impermeability, crack resistance and freeze-thaw resistance of the concrete are further improved.

The invention discloses an all-weather self-adaptive light-electricity-water-hydrogen integrated floating device, and belongs to the technical field of seawater resource utilization and hydrogen energy preparation, the all-weather self-adaptive light-electricity-water-hydrogen integrated floating device comprises a base, the top of the base is provided with an electrolytic hydrogen production mechanism, the electrolytic hydrogen production mechanism comprises an electrolytic tank fixedly connected with the base, an electrolytic part is arranged in the electrolytic tank, the electrolytic tank is communicated with a hydrogen storage ring, and the hydrogen storage ring is communicated with a water storage tank. The top of the electrolytic cell communicates with a collecting mechanism, the collecting mechanism comprises a water collecting tank communicating with the electrolytic cell, the top of the water collecting tank communicates with a collecting part, the top of the collecting part is provided with an air cavity and a hydrogel interlayer, and a gap is formed between the air cavity and the hydrogel interlayer. Autonomous photovoltaic power supply, all-weather efficient water absorption and evaporation of hydrogel, rapid circulation of gas in the gas cavity and rapid condensation and liquefaction of the surface of the gas cavity can be realized, and liquefied fresh water is recovered and supplied to the electrolytic cell for electrolytic hydrogen production. According to the invention, 'seawater vapor collection 'and'photovoltaic electrolytic hydrogen production' can be completed at the same time, and the equipment cost and the occupied area are remarkably reduced.

The invention relates to the technical field of fabrics, in particular to a high-performance hyaluronic acid fiber fabric and a preparation method thereof. The fabric is prepared by blending and weaving polylactic acid-hyaluronic acid composite short fibers and polyester short fibers, wherein the polylactic acid-hyaluronic acid composite short fibers are prepared by a wet spinning process. The spermine is adopted as a cross-linking agent, hyaluronic acid and polylactic acid are promoted to form a uniform cross-linked network, and the structural uniformity of the polylactic acid-hyaluronic acid composite short fiber is remarkably improved. The hyaluronic acid fiber fabric prepared by the preparation method disclosed by the invention has an excellent moisturizing effect, excellent pilling resistance and proper bending resistance, has rigidity and softness, and has good wearing comfort.