3results about How to "High moisture absorption" patented technology

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 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 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.