98 results about "Dispersed media" patented technology

Provided are: a carbon nanotube dispersion liquid in which carbon nanotubes are dispersed while suppressing shortening of the lengths of the carbon nanotubes; negative electrode slurry using the carbon nanotube dispersion liquid; a negative electrode; and a secondary battery.　Provided are: a carbon nanotube dispersion liquid comprising carbon nanotubes, a dispersant, and a dispersion medium, wherein 50% or more of bundles of the carbon nanotubes have a length of 10 μm or more; negative electrode slurry containing the carbon nanotube dispersion liquid; a negative electrode; and a secondary battery.

The invention provides a reverse printing ink system based on a positive photosensitive mechanism and application thereof. The printing ink system comprises three types of products, namely black matte printing ink, high-reflectivity white printing ink and green printing ink, the production process of the ink system comprises the following steps: 1) synthesizing the film-forming resin; (2) sharing the film-forming resin with a pigment system, a dispersion medium and a functional additive; and 3) applying the reverse ink system to PCB manufacturing. According to the method, the characteristic of'dissolution in an exposure area 'is realized through positive light sensing, and the problems of scanning splicing printing, color difference and insufficient reflectivity in a traditional solder mask process are solved by matching with a special developing solution and a DI exposure light spot shaping technology; compared with the prior art, the reverse printing ink system has the advantages that the yellowing index, the resolution ratio, the heat resistance and the like are remarkably improved, and the reverse printing ink system is suitable for manufacturing a high-end mini LED / micro LED PCB (Printed Circuit Board).

This invention belongs to the technical field of carbon dioxide capture methods, specifically relating to a carbon dioxide capture material and method based on porous liquid physical absorption. The carbon dioxide capture material consists of a hydrophobic solid porous material and an aqueous dispersion medium containing polyvinylpyrrolidone (PVP). The aqueous dispersion medium accounts for 90-95 wt% of the total system mass, and the solid porous material accounts for 5-10 wt%. The preparation method includes the following steps: Step 1, placing the weighed PPVP-containing aqueous dispersion medium in an open container, forming a gentle vortex through stirring, and then slowly adding the solid porous material; Step 2, dispersing in an ultrasonic water bath; Step 3, oscillating in a constant-temperature shaker; Step 4, repeating the above ultrasonic and oscillation steps. Compared with a pure water system, the third type of porous liquid system based on hydrophobic porous particles obtained by this invention can achieve better continuous carbon dioxide capture through the synergistic effect of the solid porous material and the solid-liquid interface interaction region.

The invention relates to the technical field of liquid silica gel forming, and discloses a liquid color silica gel forming process and clothing application, and the liquid color silica gel forming process comprises the following steps: step 1, base material pretreatment: selecting a flexible base material, cutting according to the size of a formed part, removing corner burrs, and sequentially carrying out ultrasonic cleaning, hot air drying and plasma activation; 2, according to the forming color requirement corresponding to the qualified flexible substrate obtained in the step 1, color paste preparation and dispersion are carried out, a bi-component addition type liquid silica gel matrix and special color paste are taken according to the mass ratio of 100: 8, 0.8% of surface modified nano-silica dispersion media are added, a dynamic shearing-ultrasonic two-stage dispersion technology is adopted for treatment, and the flexible substrate is obtained. According to the liquid color silica gel forming process, a two-stage dispersion process is adopted, a special dispersion medium is matched, uniform dispersion of color paste is achieved, and the liquid color silica gel forming process has the core advantages of being stable in color, washable and free of fading, good in silica gel fluidity after dispersion and suitable for scenes with high color requirements such as garment decoration.

A conductive-material-dispersed solution, according to one implementation, comprises a conductive material, a dispersant and a dispersion medium, wherein the conductive material comprises single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs), and the solid content of the conductive-material-dispersed solution is 1.5 wt % or greater. According to the one implementation, the provided conductive-material-dispersed solution has the conductive material pre-dispersed therein to an excellent level such that, when added to an anode slurry composition, dispersibility and the like of the conductive material are effectively improved, and inhibits aggregation between constituent elements in the anode slurry such that high solid content characteristics and the like in a slurry can be ensured.

A method for producing a silicon nitride substrate that has high heat dissipation and excellent mechanical properties by preventing a rapid nitridation reaction of silicon and achieving a uniform nitridation reaction includes the following steps: a first step of mixing metal silicon powder and silicon nitride powder and pulverizing the mixture to form a composite powder; a second step of mixing the composite powder with a sintering aid and a dispersing medium to form a sheet-forming slurry in which the sintering aid is dispersed in the composite powder; a third step of molding the sheet-forming slurry to form a sheet; a fourth step of heating the sheet at 250 to 600°C to degrease the resin component to form a degreased sheet; a fifth step of heating the degreased sheet at 1200 to 1500°C to nitride the silicon contained in the sheet to form a nitrided sheet; and a sixth step of sintering the nitrided sheet to form a silicon nitride substrate, wherein the composite powder is formed by adsorption of metal silicon particles and silicon nitride particles.

A method for manufacturing a solid electrolytic capacitor that can ensure sufficient long-term reliability and also can provide a sufficiently high initial capacitance. [Solution] A method for manufacturing a solid electrolytic capacitor (20) includes a first step of preparing a porous body (4) containing a valve action metal and having a dielectric layer (5) formed to cover at least a portion of the surface; a second step of irradiating plasma onto at least a portion of the surface of the porous body to introduce hydroxyl groups; and a third step of forming a first conductive polymer layer by applying a first dispersion liquid containing a first dispersion medium and particles of a second conductive polymer dispersed in the first dispersion medium to the surface of the porous body into which hydroxyl groups have been introduced.

The invention discloses a particle shape and particle size detection method in the melting suspension granulation process of an energetic material, which comprises the following steps: collecting a liquid drop image in the process of heating and dispersing the energetic material into a dispersion medium; determining droplet size distribution data according to the droplet image; determining whether the droplet size distribution meets a cooling crystallization condition, if so, performing crystallization treatment, and if not, adjusting the stirring rate until the droplet size distribution meets the cooling crystallization condition; crystallization of the energetic material is completed, and an energetic material crystal particle image is collected in the crystallization process; according to the energetic material crystal particle image, determining whether the crystal particle diameter distribution meets the crystallization and granulation ending condition or not, if yes, ending granulation detection, and if not, reheating to the melting temperature of the energetic material, then returning to perform liquid drop image acquisition, and if yes, ending detection until the crystallization and granulation ending condition is sufficient. According to the method, real-time dynamic monitoring of the melt crystallization spheroidization process of the energetic material is achieved, and the hysteresis problem of traditional off-line detection is solved.

To easily obtain the dispersibility of a dispersion liquid without performing an experiment requiring much labor.SOLUTION: The dispersibility prediction device 10 includes a flocculation diameter acquisition part 13 for acquiring a measured flocculation diameter as an experimental flocculation diameter in a particle dispersion liquid in which a prediction target particle that is a particle to be predicted of dispersibility in a particle dispersion liquid in which particles are mixed with a dispersion medium is mixed with a designated dispersion medium that is a designated dispersion medium, a first micro physical property calculation part 14 for calculating a micro physical property that is a predetermined physical property of the prediction target particle based on target particle information representing a predetermined physical property of the prediction target particle and designated dispersion medium information representing a predetermined physical property of the designated dispersion medium, and a dispersibility prediction model construction part 15 for constructing a dispersibility prediction model by setting the micro physical property as an explanatory variable and the flocculation diameter in the particle dispersion liquid as an objective variable.SELECTED DRAWING: Figure 1

The invention belongs to the field of material science and court science, and discloses a luminescent ZIF-8 material and a preparation method and application thereof. The invention relates to a novel luminescent ZIF-8 material, which is a luminescent material prepared by taking ZIF-8 and 8-hydroxyquinoline as raw materials, taking NaCl as a dispersion medium and modifying 8-HQ on the surface of the ZIF-8 through a solid-phase grinding method. The invention also discloses application of the luminescent ZIF-8 material in preparation of a latent fingerprint development agent or application in latent fingerprint development. The FZIF-8 can be used for latent fingerprint display, primary and secondary structure information can be clearly observed through naked eyes without other observation tools, and distribution of sweat pores in a tertiary structure can even be observed after a local image is further amplified through a microscope. The FZIF-8 shows good sensitivity and selectivity in the detection of the LFPs, and has relatively low background interference.

The present application relates to the technical field of solid-state battery materials, and particularly relates to a preparation method of a nontronite-coated LLZTO-based composite solid-state electrolyte film and application thereof. The preparation method comprises the following steps: 1) mixing nontronite and LLZTO in the presence of a dispersion medium, ball milling, drying, and obtaining a composite filler coated with nontronite on the surface; 2) mixing the composite filler in step 1) and polyvinylidene fluoride-hexafluoropropylene and lithium bis-trifluoromethanesulfonimide in the presence of a solvent, and obtaining an electrolyte slurry; 3) solution casting the electrolyte slurry in step 2), and vacuum drying to obtain a composite solid-state electrolyte film. The P-CPE electrolyte film of the present application is used in a solid-state lithium battery, can construct a continuous and stable ion transmission channel, homogenize lithium ion flux, inhibit dendrite growth, and exhibit excellent cycle stability and rate performance.

To provide a metal paste for joining that can sufficiently suppress the detachment of members in the manufacturing of a joint using a metal paste, a joint using the metal paste for joining, and a method for manufacturing the joint. [Solution] A bonding metal paste containing metal particles, a reducing agent, and a dispersion medium, wherein the yield stress measured by the following procedure is 2.0 MPa or less. Procedure for measuring yield stress: (1) Apply bonding metal paste to the copper substrate and dry at 90°C for 30 minutes to form a metal particle-containing layer with a thickness of 3 mm × 3 mm × 0.05 mm. (2) Using a die-shear type testing machine, the metal particle-containing layer is pressed horizontally with a 4 mm wide tool under the conditions of a heating temperature of 90°C, a speed of 100 μm / s, and a distance of 0.02 mm between the tip of the tool and the copper substrate, to obtain a stress (MPa)-strain (%) curve. (3) The yield stress (MPa) is defined as the stress at which the permanent strain in the stress (MPa)-strain (%) curve becomes 0.2%.

To provide a filling method capable of highly efficiently filling a target capturing substance into a microwell.SOLUTION: A filling method for filling a target-capturing substance into a microwell, the method comprising: a capture substance information acquisition step of acquiring capture substance information on a target-capturing substance to be used; a rate determination step of determining, based on the capture substance information acquired in the capture substance information acquisition step, an introduction rate at which a dispersion medium in which the target-capturing substance is dispersed is introduced into a region provided with a plurality of the microwells on a substrate provided with the microwells; A capture substance filling step of filling the one or more microwells with the target-capturing substance.SELECTED DRAWING: Figure 2

In order to increase the energy density of ultracapacitors, the invention proposes a method for producing a slurry to manufacture an electrode of an ultracapacitor, the method involving dispensing a first binder material and a carbide derived carbon (CDC) particulate material into a mixing vessel; optionally the mixing vessel may include at least one additive material; mixing the materials with a dispersion medium to obtain a dispersion that has a base solid content; mixing a second binder into the dispersion; and diluting the dispersion to a target solid content to obtain the slurry. The slurry is coated onto a current collector, formed into an electrode by a calendering process, and multiple electrodes and a separator are assembled into an electrode assembly. The electrode assembly is wetted with an electrolyte and encapsulated within a housing to form the ultracapacitor.

The invention discloses a clay mineral-based room-temperature gas sensing material and a preparation method thereof, and the method comprises the following steps: by taking ultrapure water as a dispersion medium, carrying out ultrasonic dispersion on layered aluminosilicate clay mineral to prepare a suspension, then uniformly coating the suspension on the surface of an interdigital electrode with a specific electrode distance, and carrying out vacuum drying to obtain the clay mineral-based room-temperature gas sensing material. And drying and curing at room temperature to form the sensitive film. The gas sensing material prepared by the method can work at room temperature, and realizes high-selectivity detection of polar gas through unique interaction between polar gas molecules and clay mineral interlayer cations, adsorbed water and laminate electrons. The preparation process is simple, low in cost and environment-friendly, the high-temperature working condition required by a traditional semiconductor gas sensor is completely avoided, and a new material and a new way are provided for developing a low-power-consumption and high-selectivity room-temperature gas sensing platform.

The invention belongs to the technical field of stationery, and provides parallel rainbow dust-free chalk and a processing method thereof. The chalk is formed by fixedly connecting at least two dust-free chalk units with different colors in parallel along the axial direction, and the cross section of a finished product is fan-shaped or distributed in parallel in a layered manner; each unit comprises 9-15 parts of a binder, 43-57 parts of a filler, 0.5-1.5 parts of a coloring agent, 4-6 parts of a moisture-proof lubricant and 25-35 parts of an emulsification dispersion medium. The processing method comprises the following steps: metering raw materials, preparing powder and a mixture in a color separation manner, pressing color strips in a color separation manner, combining the color strips in parallel, filling the color strips into a die, carrying out collaborative extrusion molding at 30-40 DEG C and 0.5-1.0 MPa, and carrying out post-treatment, wherein the mixture is rolled for not less than 2 times. Single-support multi-color writing is achieved, the color bar area is large if the color is small, use is convenient, multi-color lines with natural transition can be drawn at the same time if the color is large, and the drawing interest is improved; through the process of color separation pressing, combined die filling and collaborative extrusion, color unit interfaces are tightly attached, the structure is stable, the process is compatible with existing equipment, and industrial popularization is facilitated.

A conductive dispersion solution comprising a tin oxide particle and a dispersion medium, wherein the conductive dispersion solution further comprises an organic acid, a phosphorus compound, and an amine compound, the tin oxide particle is dispersed in the dispersion medium, a cumulant average particle diameter of the tin oxide particle in the conductive dispersion solution is 90 to 400 nm, the organic acid, the phosphorus compound, and the amine compound are dissolved in the dispersion medium, and the tin oxide particle comprises an antimony-containing tin oxide particle A not treated with a silane coupling agent and an antimony-containing tin oxide particle B treated with a silane coupling agent.

The application belongs to the field of optics and nanomaterial self-assembly, and provides a material with structural color and a preparation method and application thereof. A polymer nanoring is used as an assembly unit, an easily volatile organic solvent is used as a dispersion medium, and a water vapor interface is used as an assembly interface. A self-assembly process induced by an interface surface tension gradient is used to make the nanoring array directionally arrange on the water surface. The nanoring has an outer diameter of 500-1000 nm and a thickness of 100-400 nm. Subsequently, LB film analyzer technology is used to controllably transfer the closely arranged nanoring array to a transparent substrate under suitable film forming pressure, film forming speed, film pulling speed and film pulling pressure to obtain a material with structural color. The structural color material prepared by the application has obvious structural color and angle correlation, and the structural color can be regulated by the size of the assembly unit, and is suitable for use in the fields of display, anti-counterfeiting, encryption and the like.

The method for producing an oxide sintered body according to the present invention is a method for producing an oxide sintered body using, as a starting material, an oxide containing two or more elements selected from the group consisting of In element, Ga element, and Zn element, the method satisfying the following (a)-(c). (a) The raw material is an oxide having a purity of 6N or more. (b) The grinding / mixing medium is formed from an oxide that does not contain an element other than the element selected as the starting material. And (c) slurrying using ultrapure water as a dispersion medium.

The invention relates to the technical field of analysis and detection, and discloses an inorganic solid electrolyte particle size distribution testing method which comprises the following steps: (1) preparing a dispersion medium solution; (2) mixing the inorganic solid electrolyte with the dispersion medium solution to obtain a sample suspension; and (3) testing the particle size of the sample suspension through a laser diffraction method. In the scheme of the invention, the inorganic solid electrolyte suspension which is uniformly dispersed and has no sedimentation and agglomeration phenomenon can be prepared by selecting a non-toxic and stable dispersion medium, optimizing the formula of the dispersing agent and selecting proper dispersion conditions, and an ideal test result is obtained.

The dispersion disclosed herein is a dispersion used for manufacturing an electrolytic capacitor, including a conductive polymer, an insulating material, and a dispersion medium. The insulating material contains at least one kind of material selected from the group consisting of insulating fibers and insulating particles.

A conductive two-dimensional particle-containing composition including: a conductive two-dimensional particle of a layered material including one or a plurality of layers; a dispersion medium having a relative permittivity greater than that of water; and a fluorine element and an oxygen element on a surface of the conductive two-dimensional particle, wherein the one or plurality of layers includes a layer body represented by: MmXn, wherein M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is 1 to 4, and m is more than n and 5 or less, and a modifier or terminal T existing on a surface of the layer body, wherein T is at least one selected from the group consisting of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, and a hydrogen atom.

This dispersion stability evaluation method is a method for evaluating a dispersion stability of a dispersoid dispersed in a dispersion medium. The dispersion stability evaluation method includes: a f

Provided is a technology capable of inhibiting the occurrence of defects that accompany formation of a layer composed of metal oxide nanoparticles, which an optical element has between a cathode and an anode, by an inkjet printing method. This inkjet ink composition comprises: metal oxide nanoparticles composed of a material selected from the group consisting of a hole injection material, a hole transport material, and an electron transport material; and a dispersion medium containing a glycol-based solvent and a non-alcohol-based solvent having 7-9 carbon atoms.

The invention provides an electromagnetic wave absorbent for a high-frequency band and a preparation method thereof. The preparation method comprises the following steps: (1) adding spherical carbonyl iron powder, a grinding aid and a dispersion medium into a stirring ball-milling tank, and carrying out ball-milling treatment to obtain slurry containing flaky carbonyl iron powder; (2) carrying out filter pressing treatment on the slurry, and separating filtrate and a filter cake to obtain wet powder of which most of the liquid medium is removed; and (3) drying the wet powder under a vacuum condition, removing the residual liquid medium to obtain dried flaky carbonyl iron powder, and screening to obtain the high-frequency band electromagnetic wave absorbent. Common carbonyl iron powder is difficult to meet the requirement of wave absorbing performance at high frequency, and after the common carbonyl iron powder is treated through the preparation method, the electromagnetic wave absorbing capacity of the common carbonyl iron powder at the high-frequency wave band is remarkably improved.

This application discloses a powder particle size testing system and control method applied to a spray dryer, wherein the media pipeline and the sampling pipeline are set at an acute angle. The powder particle size testing system and control method for a spray dryer provided by this invention connects the sampling pipeline to the spray dryer, and the media pipeline is connected to the sampling pipeline at an acute angle. The media pipeline draws in the dispersion medium from the dispersion medium chamber, simultaneously creating a negative pressure at the connection point of the sampling pipeline. The sampling pipeline can draw in the airflow mixed with powder particles from the spray dryer. The dispersion medium and the product in the spray dryer are simultaneously input into the sample chamber to form a test sample. The test sample circulates between the sample chamber and the laser testing unit, which completes the particle size testing process. The extraction efficiency is adjusted by regulating the opening of the first proportional solenoid valve, ensuring that a suitable test weight of powder particles is drawn in during the second pump's pumping of a suitable volume of dispersion medium.

The invention discloses an electrophoresis electronic paper display device, which comprises a pixel layer, the pixel layer comprises a plurality of microcapsules arranged in an array, and each microcapsule is filled with an electrophoresis dispersion medium, positive charged particles and negative charged particles; wherein each microcapsule is further filled with phase change particles, and each phase change particle is provided with a liquid phase and a solid phase; when the temperature of the electrophoretic dispersion medium is lower than the phase change temperature of the phase change particles, the phase change particles can be converted from a liquid phase to a solid phase and release heat; when the temperature of the electrophoretic dispersion medium is higher than the phase change temperature of the phase change particles, the phase change particles can be converted from a solid phase to a liquid phase and absorb heat. The electrophoresis electronic paper display device can temporarily maintain the response speed of the positive charged particles and the negative charged particles in a low-temperature environment.

To provide a dispersibility evaluation method, a screening method and a dispersibility prediction method of a dispersion system having three components of a powder, a dispersant and a dispersion medium as constituent components, and to provide a system capable of proposing a combination of the constituent components having high dispersibility.SOLUTION: One constituent component is specified from a powder, a dispersion medium, and a dispersant which are constituent components of a dispersion system, and then, with respect to a dispersant-treated powder obtained by surface-treating a powder with a dispersant in advance and an untreated powder for a plurality of constituent components, a mean particle diameter in a dispersion obtained by mixing each of the powders with the dispersion medium is measured, the suitability of each constituent component is determined according to a parameter based on the mean particle diameter, and a Hansen sphere forming a boundary between the two is obtained. The dispersibility is evaluated based on the distance between the center position coordinate of the Hansen sphere and the position coordinate of the Hansen solubility parameter of the specific component to be evaluated.SELECTED DRAWING: Figure 2

A conductive dispersion solution comprising a tin oxide particle and a dispersion medium, wherein the conductive dispersion solution further comprises an organic acid, a phosphorus compound, and an amine compound, the tin oxide particle is dispersed in the dispersion medium, a cumulant average particle diameter of the tin oxide particle in the conductive dispersion solution is 90 to 400 nm, the organic acid, the phosphorus compound, and the amine compound are dissolved in the dispersion medium, and the tin oxide particle comprises an antimony-containing tin oxide particle A not treated with a silane coupling agent and an antimony-containing tin oxide particle B treated with a silane coupling agent.

The invention provides a method for digital printing of a bionic high-toughness piezoelectric structure through a solution method and the piezoelectric structure, and relates to the field of intelligent electronic materials.The method comprises the following steps that S1, piezoelectric dispersion ink is prepared; s2, preparing a liquid prepolymer substrate; s3, preparing an embedded piezoelectric structure, enabling the ink droplets to sink in the surface area of the liquid prepolymer substrate through the dynamic threshold limit wrapping effect of the surface of the liquid prepolymer substrate on the ink droplets, enabling a dispersion medium in the ink droplets to form dynamic extrusion and infiltration removal assembly in the sunken area along with the volatilization of a solvent, and obtaining the embedded piezoelectric structure. A dispersion medium in the direct-writing printing ink forms a continuous high-precision assembly structure in the viscoelastic base material, and a bionic high-toughness piezoelectric structure with bending resistance, stretching resistance and stripping resistance is further obtained.