13results about How to "Achieve functionalization" patented technology

The invention discloses a functionalized polystyrene composite microsphere and a preparation method thereof, and belongs to the technical field of high polymer chemistry and high polymer materials. The functionalized polystyrene composite microspheres are prepared by adopting a one-pot method. A dispersing agent is dissolved in a mixed solution of deionized water and ethyl alcohol to form a dispersion medium, and the dispersion medium and the dispersion medium are mixed uniformly through mechanical stirring; the preparation method comprises the following steps: adding an initiator, a cross-linking agent, a functional polymer or / and a functional monomer into styrene, ultrasonically mixing uniformly, pouring into a dispersion medium, continuously mechanically mixing to obtain a stable reaction system, and starting a heating reaction; after the reaction is finished, filtering, washing and drying a sample after the sample is cooled to room temperature, so as to obtain the functionalized polystyrene composite microspheres. The microspheres prepared by the invention not only have good stability, but also solve the problems of complex preparation process, low functionalization degree and high price of functionalized polystyrene microspheres, and are beneficial to subsequent popularization and application of the functionalized polystyrene composite microspheres.

The present invention relates to a functionalized wide-width implantable microelectrode array and a preparation method and application thereof. The functionalized wide-width microelectrode array comprises a functional layer, a substrate layer, a conductive layer, and an insulating layer arranged in sequence; the functional layer is a monomolecular layer, a polymer material layer and / or a polymer composite layer, and the thickness is 1nm-1000μm. The present invention also provides a preparation method for the above-mentioned functionalized wide-width implantable microelectrode array. The functionalized wide-width microelectrode array of the present invention can effectively adjust the microelectrode sites, circuits, spacing and other related parameters by increasing the size of the microelectrodes, thereby reducing the process complexity in the micro-machining process of the microelectrodes, greatly improving the yield of high-cost microelectrode arrays, and solving the design problems of high-density microelectrode arrays; through the functionalized wide-width design, the folding or curling function of the microelectrode array can be realized, thereby realizing minimally invasive implantation and greatly reducing surgical risks.

The invention provides a surface modified hard carbon material and a preparation method thereof. The surface modified hard carbon material comprises a hard carbon base material and a hydrophilic functional coating layer coating the hard carbon base material, and a Raman test shows that the ID3 / IG peak area ratio in a spectrum is 1.50-3.00. The preparation method of the surface modified hard carbon material comprises the following steps: carrying out first carbonization treatment on a hard carbon precursor material to obtain a pre-carbonized material; crushing the pre-carbonized material in an airflow crushing manner to obtain fine powder; performing secondary carbonization treatment on the fine powder in an inert atmosphere to obtain a carbonized material; adding a solvent and a free radical polymerization initiator into the carbonized material, heating in a water bath, slowly adding a hydrophilic monomer, and carrying out surface polymerization reaction to obtain a hard carbon surface hydrophilic coating material; and washing and drying the hydrophilic coating material on the surface of the hard carbon. The preparation method can realize functionalization of the surface of the hard carbon material, so that the prepared surface modified hard carbon material has a hydrophilic functional coating layer, and the compatibility and high-temperature stability of the hard carbon material in an electrolyte can be improved.

The utility model relates to an AI nursing machine, in particular to equipment with a nursing function, the AI nursing machine comprises a nursing device for realizing the nursing function, a main control module and a control module, the nursing device, the main control module and the control module are respectively arranged in an inner cavity of a box body assembly, and the AI nursing machine is assembled on a cavity for placing articles through the box body assembly; the main control module is electrically connected with the nursing device and the control module; a through hole structure is arranged on the box body assembly, the through hole structure is communicated with a cavity for placing articles, and the nursing device corresponds to the through hole structure; the main control module controls the nursing device to work, and a nursing medium generated by working of the nursing device enters the cavity through the through hole structure and nurses articles in the cavity. The AI nursing machine is provided with the hot air assembly and the disinfection component, so that the AI nursing machine can disinfect or dry articles and the like, and modularization and functionalization of disinfection modes, AI intellectualization and fast replacement can be realized.

The invention discloses a preparation method of graded porous polymer microspheres with inner and outer coatings for ocean uranium extraction. The preparation method comprises the following steps: curing ethoxylated trimethylolpropane triacrylate multiple emulsion particles containing polyvinyl alcohol inner liquid drops into graded porous polymer microspheres; the graded porous polymer microspheres are dispersed in a polyacrylonitrile solution, the polyacrylonitrile solution serves as an inner phase, silicone oil serves as an outer phase, and a capillary tube is used for absorbing the inner phase; an injection pump is used for controlling the flow velocity of the inner phase and the outer phase, the inner phase is sheared by the outer phase at the flow focusing position to form solid-water-oil composite emulsion particles, and the solid-water-oil composite emulsion particles flow out into a rotary evaporation bottle filled with the outer phase in advance through a collecting pipe of a flow focusing type capillary tube generator; and curing the solid-water-oil liquid drops to obtain the porous polymer microspheres with graded inner and outer coatings. The large specific surface area of the graded porous polymer microspheres is utilized, functionalization of polyacrylonitrile is achieved, and the polyacrylonitrile has the function of adsorbing uranium ions through follow-up modification.

The invention discloses a metal catalyst-loaded single-walled carbon nanotube / fabric composite flexible electrode, a preparation method and application. The preparation method sequentially comprises the following steps: S1, preparing single-walled carbon nanotube conductive ink; s2, preparing a single-walled carbon nanotube / fabric composite flexible electrode; and S3, by taking the single-walled carbon nanotube / fabric composite flexible electrode as a cathode and a platinum sheet as an anode, placing the cathode and the anode in an electrolyte containing metal cations in the metal-containing catalyst, and depositing a layer of metal catalyst on the surface of the cathode by adopting an electrochemical oxidation-reduction method to obtain the metal-catalyst-loaded single-walled carbon nanotube / fabric composite flexible electrode. According to the preparation method, the operation steps are simple and easy to implement, chemicals with highly toxic or strong oxidizing properties are not used in the whole preparation process, and the preparation method has the advantages of being environmentally friendly, safe and controllable; the method can be easily combined with the existing garment production process, the production cost is low, and a foundation is laid for further development of the wearable biosensor.

The application belongs to the technical field of material chemistry and water treatment, and provides a CQD-MOF stable polysulfone hollow porous microsphere and preparation and application thereof. The CQD@UiO-66-NH2 is prepared by condensation synthesis, then the polysulfone and PVP are dissolved, CQD@UiO-66-NH2 is added and mixed, and then a coagulation bath is carried out to form CQD@UiO-66-NH2 / PSF composite hollow microspheres. The composite hollow microspheres not only have the inherent high specific surface area and a large number of active sites of UiO-66-NH2, but also show the advantageous properties of excellent photocatalytic capacity and low-density recyclable characteristics of CQD, and have excellent degradation efficiency on tetracycline and methylene blue, and have good industrial application prospect.

The utility model discloses a multifunctional storage positioning bed sheet, which is characterized in that strip storage bags are arranged on three overhanging edges of the bed sheet to form a U-shaped surrounding structure, at least two daily necessity storage bags are arranged, and the strip storage bags and the daily necessity storage bags are sealed by zippers conveniently, so that the storage and the positioning are convenient. Elastic rubber bands are arranged at four corners of the bed sheet and used for fixing the bed sheet and preventing the bed sheet from shifting. The storage bag for daily necessities can be used for storing mobile phones, chargers, earphones, toilet paper and other daily necessities, favorite incense sticks, sachets, vanilla, sachets and the like can be placed in the long-strip storage bag, a comfortable environment is created for sleeping people, the life quality and happiness index of people are improved, individuation and functionalization of the bed sheet are achieved, and the bed sheet is worthy of popularization and application. Meanwhile, practical and attractive values are realized.

The invention discloses a preparation method of Janus water-based microgel, and belongs to the technical field of microgel. According to the preparation method, the Janus water-based microgel is successfully prepared by taking vortex oscillation emulsion formation as a basis and taking ultraviolet irradiation as a polymerization mode. The method comprises the following steps: 1, preparing a solution: weighing a polymeric monomer / a cross-linking agent / an initiator, and preparing an oil phase solution containing a Span 80 surfactant; preparing an ATPS aqueous solution; 2, preparation of liquid drops of the Janus emulsion; 3, preparation of the Janus water-based microgel; and 4, washing the Janus water-based microgel. The oil phase and the surfactant used in the invention are cheap and easily available, the preparation method is simple, and Janus water-based microgels with different morphologies can be obtained by changing the aqueous two-phase components and the types of the surfactant. The Janus water-based microgel prepared by the invention is expected to be used for drug encapsulation and treatment.

This invention belongs to the field of inorganic nanoparticle preparation technology, and relates to a ball milling modification method for bifunctionalized thin-layer hexagonal boron nitride: Hexagonal boron nitride powder, guanidine hydrochloride, and urea are continuously heated and stirred to obtain a homogeneous mixture of a eutectic solvent formed by guanidine hydrochloride and urea and the hexagonal boron nitride powder; this mixture is poured into a ball mill jar containing grinding balls and a liner, and a certain amount of ethanol and water are added as dispersants for high-energy ball milling; after the material is separated from the grinding balls, the milled material is vacuum filtered, dried, and the resulting powder is dispersed in water, then ultrasonicated, allowed to stand, vacuum filtered, and dried to obtain bifunctionalized thin-layer hexagonal boron nitride. This invention not only has the advantages of readily available raw materials and simple process, but also high efficiency, environmental friendliness, and low energy consumption. The hexagonal boron nitride obtained by this method has thinner layers, good biocompatibility, low relative density, and good thermal conductivity.

The present invention relates to the field of meta-aramid spinning technology, and specifically to a high-bonding meta-aramid filament and its preparation method and application, wherein the preparation method comprises: subjecting meta-aramid polymer stock solution to dry-jet wet spinning, coagulation molding, stretching, water washing, and drying operations to obtain dried filaments; the filament bundles of the dried filaments enter a filament bundling device, and the surface of the fibers is structurally modified by high-pressure airflow to obtain network-like fibers, which are then rolled and doffed by a winding machine; the filament bundling device comprises a filament path and an airflow channel, and the filament bundles to be treated with surface structures pass through the filament path, and high-pressure gas is passed through the airflow channel; the network-like fibers are subjected to heat setting treatment after unwinding; the heat-treated fibers are subjected to sizing treatment, and finally are wound and doffed to obtain the high-bonding meta-aramid filament products. The mechanical properties, whiteness properties, strength cv value, and thermal stability of the meta-aramid filaments are relatively excellent.

The present invention provides a sinter-free aeolian sand pottery sand and a preparation method thereof. The sinter-free aeolian sand pottery sand of the present invention utilizes the alkali activity of aeolian sand powder and industrial waste slag to prepare the sinter-free aeolian sand pottery sand, and the sinter-free aeolian sand pottery sand is compounded with aeolian sand for use, which can solve the unreasonable grading of aeolian sand while reducing the environmental problems caused by the use of river sand and machine-made sand; the preparation process of the present invention is simple, no CO2 emission is required due to firing, the performance of the product is easy to adjust, and functionalization is convenient to achieve; the present invention uses aeolian sand powder as a filler and binder for the sinter-free pottery sand, and uses fine-grained aeolian sand (0.08-0.3mm) to provide a skeleton support for the sinter-free aeolian sand pottery sand, further improving the mechanical properties of the sinter-free aeolian sand pottery sand; the present invention provides a new resource utilization approach for aeolian sand, opens up a new path for the high-value utilization of aeolian sand, and plays a positive role in the sustainable development of mineral resources.

The utility model relates to an installation structure of a nursing machine, in particular to the nursing machine applying the installation structure. The nursing machine comprises a box body assembly and a control module, the control module is arranged on the box body assembly, and the control module is electrically connected with a control circuit board on the box body assembly; the box body assembly is assembled on the inner cavity of the cabinet body through the mounting assembly, and the control surface of the control module is exposed out of the cabinet body. The box body assembly is fixed on the inner cavity of the cabinet body through the mounting assembly, so that the nursing machine can be mounted on different places such as a cupboard, a wardrobe, a disinfection cabinet, a wall cabinet and a storage cabinet to disinfect or dry articles; besides, the box body assembly can also be installed in a customized cabinet, dishes, clothes, shoes, tea sets, fruits, vegetables or kitchen ware and the like are placed in the customized cabinet to disinfect or dry the articles, the hot air assembly and the disinfection device can disinfect or dry various articles, and the utilization rate of the hot air assembly and the disinfection device is increased.