20results about How to "Improve liquid absorption capacity" patented technology

The invention discloses a composite solid electrolyte diaphragm which comprises a bacterial cellulose membrane, fluorinated metal modified PEO electrolyte particles and functional group modified particles, and the fluorinated metal modified PEO electrolyte particles and the functional group modified particles are loaded in a three-dimensional network structure of the bacterial cellulose membrane. The functional group modified particles are functional group modified silicon dioxide particles and functional group modified LATP particles, the functional group modified silicon dioxide particles uniformly wrap the functional group modified LATP particles, and fluorinated metal of the fluorinated metal modified PEO electrolyte particles is combined with functional groups of the functional group modified particles through coordinate bonds. The invention also discloses a preparation method of the electrolyte diaphragm and a battery with the electrolyte diaphragm. The ionic conductivity of the electrolyte diaphragm is improved.

The present invention provides a battery additive and a preparation method and application thereof, wherein the battery additive comprises porous latex particles having a rich pore structure and a large specific surface area and having good swelling performance. The battery additive is used for battery pole pieces, and can effectively improve the wettability and liquid absorption performance of the pole pieces, shorten the battery injection process time, and thus improve production capacity; at the same time, the battery additive has a large number of gaps to store electrolyte, significantly improves the liquid retention capacity of the pole pieces, enhances lithium ion conduction, and improves the cycle performance of the battery.

The invention relates to a composite diaphragm, a preparation method thereof and a battery, and belongs to the technical field of battery materials, the composite diaphragm comprises a base membrane and a coating distributed on the surface of the base membrane; the coating comprises sodium super-ionic conductor type phosphate, a single-arm carbon nano tube and a binding agent, the mass ratio of the sodium super-ion conductor type phosphate to the single-arm carbon nanotube is (20-80): 1. The composite diaphragm provided by the invention has excellent heat shrinkage resistance, electrolyte infiltration performance and liquid absorption capability, and relatively high ionic conductivity and puncture strength, and the battery comprising the composite diaphragm has relatively high capacity and excellent cycle performance.

The utility model discloses a liquid leakage prevention structure of a conductive suction head, which belongs to the technical field of conductive suction heads and comprises a conductive suction head body, a sealing assembly is arranged on one side of the conductive suction head body, a liquid leakage prevention assembly is arranged on one side of the sealing assembly, and a reinforcing assembly is arranged on one side of the sealing assembly. A sealing assembly, a liquid leakage prevention assembly and a reinforcing assembly are arranged, during use, when the conductive suction head body is mounted through a mounting ring, the sealing ring sleeves an external mounting end, then the sealing ring is in threaded connection with the interior of a threaded groove after the mounting ring is mounted, and the sealing ring is in threaded connection with the interior of the threaded groove; and the reinforcing pad is inserted into the reinforcing groove and the sealing pad is tightly attached to the external mounting end, so that the condition of liquid leakage of the conductive suction head can be prevented.

The utility model provides a diaphragm, an electrode assembly and a battery monomer. The diaphragm comprises a main body part and a reinforcing part arranged on at least one side of the main body part, and the reinforcing part extends in the length direction of the main body part; and the reinforcing part is in a wave shape. The diaphragm prepared by the utility model can provide good heat resistance and higher liquid absorption capacity, ensures the safety of the diaphragm at higher temperature, reduces the risk of contact short circuit of positive and negative pole pieces caused by diaphragm shrinkage at high temperature, and can meet the requirements of high power and high energy density at the present stage.

The invention discloses a reverse osmosis high-absorption sanitary nursing pad and a preparation process thereof, and relates to the technical field of nursing pads. The preparation method specifically comprises the following steps: S1, performing papermaking forming on wood pulp fibers and ES fibers through a wet-process mixing net forming process, spraying water-absorbent resin, and performing composite dehydration and drying to obtain an absorption core layer; s2, the skin-friendly surface layer, the absorption core layer and the breathable bottom film layer are compounded through hot pressing, and the reverse osmosis high-absorption type sanitary nursing pad is obtained, according to the invention, the salt-resistant water-absorbent resin is introduced into the sanitary nursing pad in a wet compounding manner, so that the prepared product has excellent absorption capacity and reverse osmosis prevention performance.

The present application discloses a composite diaphragm and a preparation method thereof, and relates to the technical field of secondary batteries. The present application uses an electrospun film as a base film, and the electrospun film is electrospun in a miscible manner, wherein the polymer mixture has the characteristics of good hydrophilicity and high surface energy, which can improve the affinity of the lithium battery diaphragm to the electrolyte. In addition, the present application also improves the conductivity of the lithium battery diaphragm by coating a nanomaterial on one side of the electrospun film, and the nanomaterial has the characteristics of high room temperature ionic conductivity, while coating a PVDF slurry on the other side of the base film to improve the liquid absorption performance and heat shrinkage resistance of the composite diaphragm.

The application discloses a kind of high expansion cellulose sponge with arch layer structure and its preparation method and application.The method is: with carboxymethyl cellulose and cellulose or its micro-nano fiber as raw material, crosslinking agent is added to prepare hydrogel.Subsequently, the sponge sample is obtained by two-way freezing of hydrogel-freeze drying, the sponge sample is soaked in the solution that can be reacted with carboxyl, the solution includes at least one of calcium chloride solution, chitosan solution or the mixed solution of two, finally, the sponge is obtained by secondary freeze-drying.The sponge of the application has good biocompatibility, high liquid absorption rate, and the volume expansion ratio can reach 10-15 times;after compression, it is used for bleeding site, can swell rapidly, block wound, and quickly stop bleeding.The sponge of the application has arch layer structure between layers, can realize high compression, and can provide expansion support force for more than 4 hours.The sponge prepared by the application can be used for deep bleeding, such as deep and narrow penetrating wound bleeding, human interface bleeding, etc.

The invention relates to the technical field of cleaning devices, and provides an engine guiding, adjusting and cleaning device convenient to operate. The spraying piece is arranged on the main body, communicates with the oil storage cavity and is used for cleaning the engine guide; the endoscope assembly is arranged on the main body and is provided with a lens, and the lens is used for detecting the guiding and adjusting cleaning state of the engine; the spiral conveying part is arranged on the main body, the spiral conveying part is provided with a wiping channel formed in the length direction of the spiral conveying part, the spiral conveying part is further provided with a first spiral groove, the first spiral groove communicates with the wiping channel, and the lens is used for stretching into the wiping channel; one side edge of the wiping strip is wound on the spiral conveying piece, the other side edge of the wiping strip extends into the wiping channel, and the wiping strip is used for wiping the lens in the wiping channel. By means of the technical scheme, the problem that in the prior art, an engine guiding and adjusting cleaning device is tedious in endoscope lens cleaning is solved.

The invention relates to an antibacterial foam dressing and a composite layer thereof. The antibacterial foam dressing sequentially comprises a polyurethane film layer, a super absorbent fiber layer, the composite layer, a medical pressure-sensitive adhesive layer and a release layer from outside to inside. The composite layer is prepared by uniformly mixing a dimethyl sulfoxide solution of polyurethane with UiO-66-(SH) 2 (at) TCPP (at) AgNPs powder and then carrying out freeze drying on the mixture. After the metal organic framework material is introduced into the polyurethane foam layer, the seepage absorption capacity of the foam dressing is enhanced, and the foam dressing has antibacterial performance and can promote cell proliferation and accelerate wound healing under illumination. The polyurethane foam layer is prepared by using a directional freeze-drying method, so that the metal organic framework material is more uniformly distributed in polyurethane foam and is more tightly connected with the polyurethane foam, and directionally arranged hollow channels are introduced into the polyurethane foam layer, so that the specific surface area of the polyurethane foam layer is increased, and the liquid absorption capacity of the dressing is further improved; meanwhile, the drainage capacity of the composite layer is also enhanced, and the wound is prevented from being soaked due to secondary backflow of seepage in cooperation with the superabsorbent fiber layer.

The invention provides a diaphragm as well as a preparation method and application thereof. The diaphragm comprises a porous base material layer, the fast ion conductor layer is arranged on the surface of the porous base material layer and in pores of the porous base material layer; the fast ion conductor layer comprises a ceramic material, a binder, a thickener and a lithium salt. According to the diaphragm as well as the preparation method and the application thereof provided by the invention, the winding elastic deformation of the diaphragm can be reduced, the lithium ion conductivity is increased, and the safety performance of a secondary battery is improved.

The utility model provides a three-piece soft skin-friendly mini silk sanitary towel. The three-piece type soft skin-friendly mini silk sanitary towel comprises an adsorption layer, the top of the adsorption layer is fixedly connected with a separation layer, a flow guide groove is formed in the top of the adsorption layer, a flow guide piece is fixedly connected into the flow guide groove in a sleeved mode, an adsorption column is fixedly connected into the flow guide piece in a sleeved mode, and the adsorption column is fixedly connected with the separation layer in a sleeved mode. The bottom of the adsorption layer is fixedly connected with a filtering layer. According to the three-piece type soft skin-friendly mini silk sanitary towel, due to the fact that the flow guide pieces are arranged, when the sanitary towel is used, the flow guide pieces can guide and convey menstruation blood penetrating through the separation layer, the menstruation blood can be gradually absorbed by the adsorption columns when flowing in the flow guide grooves, the menstruation blood flowing and adsorbing effects are achieved, and the sanitary towel has the advantages of being simple in structure and convenient to use. Therefore, the problem that menstruation blood flows back when menstruation blood adsorption is saturated on the inner wall of the flow guide groove is solved, the dispersion effect of menstruation blood adsorption is improved, and the liquid absorption effect of the sanitary towel is improved.

The application discloses a lithium battery diaphragm with a warning function, which is a sandwich structure of three or more layers of nanofibers, and comprises a pure film and a conductive composite layer with a warning function in the middle. The application also includes adding functional materials to the lithium battery diaphragm with a warning function, so that the diaphragm has a composite function other than the warning function, for example, adding a flame-retardant coating to make the diaphragm have a flame-retardant function in addition to the warning function. The lithium battery diaphragm provided by the application not only has the characteristics of a natural three-dimensional nanometer network structure, good thermal stability, high liquid absorption rate, high ion conductivity and the like compared with traditional commercial polyolefin diaphragms, but also has unique warning and optional flame-retardant functions, which greatly ensures the safety of lithium batteries.

The utility model relates to the technical field of hygienic product production, in particular to a microcapsule non-woven fabric which comprises a liquid absorption pad, a flow guide pad and a breathable pad, the liquid absorption pad, the flow guide pad and the breathable pad are sequentially distributed from bottom to top, and the breathable pad, the flow guide pad and the breathable pad communicate with one another; the composite material further comprises a microcapsule layer, the microcapsule layer is composed of a plurality of microcapsules, and the microcapsules are filled with additives. The purpose of the utility model is to effectively guarantee the effective storage time of additives on sanitary napkin products and prolong the effectiveness of components, so that the sanitary napkin products can meet the use requirements of users in the wearing process of the users, and better use experience is provided for the customers.

The invention discloses hemostatic powder with rapid high-strength imbibition capacity and an antibacterial function and a preparation method thereof.The preparation method includes the steps that chitosan derivatives and deionized water are mixed to be uniform, and a chitosan derivative solution is prepared; the preparation method comprises the following steps: adding acrylic acid and methacryloyloxyethyl trimethyl ammonium chloride into a chitosan derivative solution, uniformly mixing, adding a cross-linking agent and a photoinitiator, carrying out polymerization reaction to obtain a cross-linked product, freeze-drying, and grinding to obtain the hemostatic powder with rapid liquid absorption and antibacterial functions. According to the hemostatic powder disclosed by the invention, a material which is good in biocompatibility, relatively strong in antibacterial function, rapid in imbibition and capable of stopping bleeding in time is obtained by regulating and controlling the proportion of polycations and anions, and the problems that a cationic material is poor in biocompatibility, and the hemostatic powder is poor in imbibition capacity are solved.

The application discloses a reverse osmosis high-absorption type sanitary nursing pad and a preparation process thereof, and relates to the technical field of nursing pads. Specifically, the application comprises the following steps: S1: wood pulp fibers and ES fibers are mixed by a wet laying process to form a paper, water-absorbing resin is sprayed, and dehydration and drying are performed to obtain an absorption core layer; and S2: a skin-friendly surface layer, the absorption core layer and a breathable bottom film layer are hot-pressed to obtain the reverse osmosis high-absorption type sanitary nursing pad. The application introduces a salt-resistant water-absorbing resin into the sanitary nursing pad by means of wet compounding, so that the prepared product has excellent absorption capacity and reverse osmosis prevention performance.

The cylindrical battery comprises a shell and the cylindrical battery cell, the cylindrical battery cell comprises a roll core body, a cavity channel extending in the height direction of the roll core body is formed in the roll core body, annular grooves are formed in the two sides of the roll core body in the height direction of the roll core body respectively, and through holes are formed in the bottoms of the annular grooves; in the thickness direction of the roll core body, the outer peripheral wall of the roll core body sinks towards the direction close to the cavity to form an outer flow guide groove, the inner peripheral wall of the roll core body sinks towards the direction away from the cavity to form an inner flow guide groove, and the outer flow guide groove and the inner flow guide groove are both located in the middle of the roll core body in the height direction of the roll core body. The cylindrical battery cell is provided with the annular groove, the outer diversion trench and the inner diversion trench, so that in the liquid injection process, the infiltration effect of the cylindrical battery cell is better, and the production efficiency is higher.

The utility model discloses a liquid container belongs to daily necessities field, has solved the problem that the liquid of pump body and the surface of cover body is easy to cause the pollution of other objects, and the technical scheme of solving this problem mainly includes the seat body, the straw, the cover body, the pump body and the link piece, and the seat body has the top open mouth and holds the cavity, the cover body is hinged with the seat body, and has the first state and the second state, the cover body rotates to switch state relative to the seat body, and the straw is arranged in the holding cavity and has the first liquid outlet passage, and the pump body is located at the cover body and is equipped with the second liquid outlet passage, and the link piece includes the connecting seat and the connecting head, and the connecting seat is equipped with the avoiding gap of avoiding the pump body, when the cover body is in the first state, the pump body is butt joint with the straw, and the first liquid outlet passage is communicated with the second liquid outlet passage, when the cover body is in the second state, the pump body is separated from the holding cavity to disconnect the straw, and the first liquid outlet passage is disconnected with the second liquid outlet passage, the utility model mainly is used for making the application of liquid container more sanitary, clean.

The present application relates to an isolation membrane, a lithium-ion battery, a battery module, a battery pack and an electrical device. The isolation membrane includes a porous substrate; a first coating disposed on at least one surface of the porous substrate, the first coating including inorganic particles and a binder; a second coating disposed on at least a portion of the surface of the first coating, the second coating including ceramic fibers; a third coating disposed on at least a portion of the surface of the second coating, the third coating including a polymer gel. The isolation membrane provided in the present application can effectively improve the poor wetting caused by insufficient or uneven distribution of electrolyte in local areas of the battery cell, thereby reducing the risk of local lithium deposition in the battery cell, improving the capacity decay rate of the battery cell, and increasing the cycle life of the battery cell.