72 results about "Mutual solubility" patented technology

The invention discloses a double-layer acrylic acid OCA optical adhesive for a folding screen and a structural characterization method of the double-layer acrylic acid OCA optical adhesive, and belongs to the technical field of optical adhesives. The OCA optical cement comprises an upper high-creep layer and a lower high-recovery layer, and an intersoluble cross-linked structure is formed on the interface of the two layers through a gradient curing process. The upper layer formula contains 70-90 parts of 2-ethylhexyl acrylate and 10-30 parts of hydroxy butyl acrylate; the formula of the lower layer comprises 20-35 parts of isobornyl acrylate, 50-70 parts of 2-ethylhexyl acrylate and 5-15 parts of hydroxy butyl acrylate. And the longitudinal crosslinking density gradient is represented by adopting a unilateral nuclear magnetic resonance depth analysis technology. The contradiction between high adhesion and high resilience of the folding screen OCA is solved, high light transmittance, low haze, high stripping force and high creep recovery rate are achieved, and the resistance change rate is remarkably reduced after dynamic folding.

The invention relates to the field of chemical industry, and discloses a preparation method of ethylenediamine carbamate, which comprises the following steps: 1) introducing an absorption liquid containing 1, 3-dimethyl-2-imidazolinone and ethylenediamine and a mixed gas containing CO2 into the bottom of a reactor to form a gas-solid-liquid three-phase mixture; (2) carrying out gas-liquid-solid separation; (3) carrying out solid-liquid settling separation; the method comprises the following steps: washing solid-phase slurry containing ethylenediamine carbamate and 1, 3-dimethyl-2-imidazolinone with ethanol, and centrifuging; and evaporating the obtained ethanol containing the 1, 3-dimethyl-2-imidazolinone, and drying a solid phase to obtain the ethylenediamine carbamate. According to the principle of mutual solubility and boiling point difference, solid-liquid separation of the product and low-temperature purification of the ethylenediamine carbamate are realized; the ethylenediamine carbamate prepared by the method has the advantages of high product yield, high purity, few byproducts, simple operation, mild reaction conditions, clean process and low energy consumption, and the solvent and the detergent can be recycled in the system without being discharged.

The present invention belongs to the technical field of oil and gas exploration and development, and discloses a molecular dynamics simulation method and system for evaluating the miscibility of carbon dioxide and crude oil, including: constructing an oil and gas component model based on molecular dynamics software and conducting molecular dynamics simulation, recording the total energy of the system and the energy change inside the molecules during the simulation process, and calculating the solubility parameters of each component under different conditions in combination with the calculation formulas of cohesive energy density and solubility parameter. The miscibility between two substances is reflected by the difference in solubility parameters between the components. The present invention can quickly and accurately quantify the oil and gas miscibility under different conditions from the perspective of the energy between components, provide important parameters for evaluating the oil and gas miscibility ability, and has certain guiding significance for the efficient development of oil reservoirs.

The present invention discloses a method for strengthening cavitation and mixing in an ultrasonic microreactor, by introducing a mutual dissolving solution consisting of a gas-rich solution and a gas-poor solution into the ultrasonic microreactor; Meanwhile, a certain ultrasonic frequency and ultrasonic power are applied to the ultrasonic microreactor, and under ultrasonic action, these mutual dissolving solutions precipitate a large amount of gas nuclei and rapidly grow into cavitation bubbles, producing a violent cavitation effect, and the violent cavitation effect strengthens the mixing in the ultrasonic microreactor. Wherein, the nitrogen saturation solubility of the gas-rich solution is 1.3 45 times that of the gas-poor solution, and the volume flow rate of the gas-rich solution is 0.025 20 times that of the gas-poor solution. The present invention makes the average density of cavitation bubbles in a single microchannel in the ultrasonic microreactor be ≥1 / microliter, and a large amount of cavitation bubbles quickly stir the fluid like a stirrer, and the complete mixing time of the fluid is less than 100 milliseconds. The present invention solves the problem that cavitation is weak in the ultrasonic microreactor and cannot achieve millisecond mixing.

The invention provides a liquid crystal compound containing a polyfluoro substituent group, a composition and application of the liquid crystal compound. The liquid crystal compound disclosed by the invention has a structure as shown in a formula I, and has relatively high negative dielectric anisotropy, good liquid crystal intersolubility and relatively low rotary viscosity. Formula I

Provided is a system for predicting compatibility between different kinds of resin materials, the method being capable of predicting compatibility such as mutual solubility and interfacial adhesion between constituent materials in a blend material prepared by mixing a plurality of resin materials. The system is characterized by comprising: a three-dimensional molecular model creation unit that creates a three-dimensional molecular model of each of a plurality of resin materials using, as input information, information obtained by digitizing the chemical structures of the resin materials; a molecular entanglement model creation unit that, using the three-dimensional molecular model, temperature, and pressure as input information, creates a molecular entanglement model of different kinds of resin materials in which two kinds of the three-dimensional molecular models of each of the resin materials are combined; a mutual diffusion coefficient calculation unit that executes a molecular simulation on the basis of the molecular entanglement model and calculates a mutual diffusion coefficient between the different kinds of resin materials; a fracture energy calculation unit that performs a molecular simulation on the basis of the molecular entanglement model and calculates a fracture energy; a trajectory saving unit in which the time evolution of the coordinates of the molecular entanglement model in the process of calculating the fracture energy is saved; and a simulation result output unit that outputs the mutual diffusion coefficient and the fracture energy as numerical information and outputs the time evolution of the coordinates as a moving image.

The invention relates to the technical field of biochemical detection, in particular to a composite surfactant composition based on a synergistic effect and a preparation method and application of the composite surfactant composition. The composite surfactant composition comprises a Tween emulsifier, an OP emulsifier and a polyoxyethylene alkyl ether emulsifier, and the Tween emulsifier can promote mutual dissolution of the OP emulsifier and the polyoxyethylene alkyl ether emulsifier through hydrogen-bond interaction; a uniform micelle structure with a small particle size is formed, the turbidity of a system is reduced, a long-chain hydrophobic group of the polyoxyethylene alkyl ether emulsifier can enhance the anchoring capacity to chylomicron and cooperates with a hydrophilic chain segment of the OP emulsifier, so that the lipid dispersion efficiency is improved, the interference inhibition rate is larger than or equal to 60%, and the stability of the system is improved. Meanwhile, after the Tween emulsifier, the OP emulsifier and the polyoxyethylene alkyl ether emulsifier are compounded, chyle particles can be efficiently wrapped, light scattering interference is reduced, and the anti-lipid interference efficiency is improved by more than or equal to 95% compared with that of a single component, so that the effect of eliminating interference in a lipid / chyle blood sample by adopting the composition is better.

Provided is a method for preparing lactide by one-step reaction of lactic acid, which comprises mixing lactic acid raw material with a solvent and contacting with a catalyst, wherein the solvent comprises solvent I and solvent II, the solvent I is at least one selected from polar solvents such as benzophenone, dihydrolevoglucosenone, N-methylpyrrolidone, trichloropropane and sulfolane, the solvent II is C4-C12 alkane, substituted alkane, aromatic hydrocarbon or substituted aromatic hydrocarbon, the solubility of the solvent II for lactic acid at normal temperature is not more than 1 g lactic acid / 100 g solvent; and the reaction temperature and pressure are such that the solvent I does not boil in the reaction system. The mixed solvent is used as the liquid environment for preparing lactide by one-step reaction of lactic acid, the mixed solvent can be completely miscible with lactic acid in the reaction raw material, on the one hand, it can increase the contact between lactic acid and the solid catalyst, make the reaction more complete, reduce the generation of by-product poly lactic acid, and increase the selectivity of lactide; on the other hand, since the poly lactic acid can also be dissolved in the selected solvent, the adhesion of the poly lactic acid on the catalyst can be reduced, the influence of catalyst deactivation caused by carbon deposition can be reduced, and the service life of the catalyst can be improved.

The invention provides a salt bridge, a preparation method thereof and an electrochemical device, and belongs to the technical field of electrochemistry, the electrochemical device comprises the salt bridge, the salt bridge comprises ionic liquid and gel, and the ionic liquid is embedded in the gel. The electrochemical device comprises the ionic liquid gel salt bridge, and in an organic electrolyte system, flowing and leakage of the ionic liquid can be reduced, so that the mutual dissolution phenomenon of the ionic liquid and an organic solvent is effectively reduced, and the ionic conduction function of the salt bridge is maintained for a long time. Therefore, the stability of the salt bridge in the organic electrolyte system can be improved.

The present application provides a kind of thick wall nitrogen physical foaming core-pulling mould and its using process, the mould includes the mould body with cavity, the feed end being communicated with cavity and the core-pulling mechanism being movably arranged on mould body, and the core-pulling core of core-pulling mechanism constitutes the side wall of cavity.The present application controls the core-pulling core to move from first position to second position by core-pulling mechanism after injection melt is filled to preset proportion, dynamically expands cavity volume and cooperates cavity pressure gradient release, guides supercritical nitrogen to uniformly nucleate and grow in mutual solution melt.Solve the quality defects of large bubble and uneven cell in nitrogen foaming process in thick wall plastic product in prior art, realize the accurate regulation of cavity volume by inclined plane transmission type core-pulling structure, and the weight reduction ratio of thick wall product is stably improved from 30%-40% to 50%-60% compared with traditional method, while the mechanical properties and structural integrity of product under high weight reduction are guaranteed, and it is suitable for batch production of thick wall products in various fields.

The application provides a liquid crystal compound and application thereof. The liquid crystal compound has a structure as shown in formula I. The liquid crystal compound has excellent characteristics such as high dielectric anisotropy, good liquid crystal mutual solubility, low rotational viscosity and the like, and can be used to improve the performance of a liquid crystal material. Formula I

This invention discloses a method for preparing potassium glycinate. The method includes adding potassium salt and glycine to water, adjusting the pH of the solution to 6.0-8.0 with an acid-binding agent, and removing a portion of the water from the reaction solution using cyclohexane as a dehydrating agent. The residue is added to a non-aqueous solvent of a certain concentration and temperature that is miscible with water to precipitate a solid. After centrifugation or filtration and drying, the finished potassium glycinate product is obtained. The potassium salt and glycine are prepared from the following molar proportions of raw materials: 1-10 parts glycine; 1-11 parts potassium salt. The preparation method of this invention operates under mild conditions, and the clever introduction of a dehydrating agent during the preparation process further shortens the drying time required for the product and improves the stability of the product.

This invention discloses a drying agent, its preparation method, and its application method for converting water-bearing gas reservoirs into gas storage facilities. This invention belongs to the field of underground gas storage facility construction technology. The drying agent is prepared by mixing a desorbent, sodium dodecylbenzenesulfonate, a capillary force neutralizer, and supercritical carbon dioxide. The desorbent causes the aqueous phase to detach from the reservoir pore throats; sodium dodecylbenzenesulfonate acts as an interface modifier, weakening the binding force of the rock on the water film, causing the water film to rupture and converge into water droplets; the capillary force neutralizer is miscible with water, reducing the interfacial tension of the fluid within the pores and converting the bound water trapped in the micropores into flowing water; supercritical carbon dioxide, with its low viscosity and high diffusivity, can flow in the complex and fine pore throat system of the reservoir, and can also carry components such as the desorbent, sodium dodecylbenzenesulfonate, and capillary force neutralizer to the depths of the reservoir's micropores, allowing the components of the drying agent to function in a wider range of reservoir areas.

The invention discloses a method for preparing a methanol catalyst by using recycled waste copper-based red mud oxygen carriers, and belongs to the technical field of waste oxygen carrier recycling and catalyst preparation. The method comprises the specific steps that the waste copper-based red mud oxygen carrier is subjected to a combined process of microwave fluidized bed roasting and ball-milling enhanced magnetic separation, focused ultrasound-assisted electrochemical dissolution and deposition, Joule thermal shock-assisted acid leaching and alkali precipitation, and cascade recovery of multiple metal resources is achieved; the problem of paid stockpiling or landfill treatment of the waste copper-based red mud oxygen carrier at present is solved, and the defects that when a pure wet method or a pure pyrogenic method is adopted for recycling, metal to be recycled and miscellaneous elements are mutually dissolved, the acid leaching efficiency of oxidation-state metal is low, and waste is caused due to the low utilization rate of part of elements are overcome. According to the method, appropriate metal of the waste copper-based red mud oxygen carrier is used as a raw material for replacing the synthesized copper-based methanol catalyst, the prominent effect that waste metal materials enter a production chain again for additive manufacturing is achieved, and remarkable economic benefits and environmental protection benefits are achieved.

The application provides a negative liquid crystal composition and application thereof, and belongs to the technical field of liquid crystal materials. The negative liquid crystal composition comprises at least one compound represented by a general formula I, at least one compound represented by a general formula II, at least one compound represented by a general formula III, at least one compound represented by a general formula IV and at least one compound represented by a general formula V. The negative liquid crystal composition provided by the application has low rotational viscosity, large elastic constant, small optical dispersion, good low-temperature mutual solubility, relatively high transmittance and fast response speed, can be used for fast response liquid crystal display of various display modes, improves the transmittance and contrast ratio, and is especially suitable for IPS and FFS mode liquid crystal displays.

The invention relates to the field of agricultural pesticides, in particular to a herbicide composition and application thereof, and the herbicide composition comprises the following components in percentage by mass: 5-70% of a weeding drug, 1-27% of a dispersing agent, 0.5-50% of modified sodium bentonite and 5-28% of a wetting agent. The herbicide composition prepared by the invention is relatively good in intersolubility, the components stably coexist, the weeding spectrum is expanded, and the herbicide composition has a good synergistic effect on preventing and treating annual and perennial gramineae and broadleaf weeds.

The invention belongs to the technical field of biological medicine, and provides a preparation method of (R)-3-hydroxybutyric acid solid. According to the method, a substance A of which the solubility is higher than that of (R)-3-hydroxybutyric acid and the solubility is increased along with the temperature rise is utilized, the substance A is dissolved in an (R)-3-hydroxybutyric acid solution, the substance A can be dissolved in water due to the fact that the solubility of the substance A in the solution is higher, and the (R)-3-hydroxybutyric acid crude product is separated out; the preparation method comprises the following steps: preparing a (R)-3-hydroxybutyric acid crude product, dissolving the obtained (R)-3-hydroxybutyric acid crude product by using an organic solvent which is immiscible with water and does not dissolve a substance A, and concentrating and drying to obtain (R)-3-hydroxybutyric acid solid, so that the water content in the prepared (R)-3-hydroxybutyric acid solid is reduced, and (R)-3-hydroxybutyric acid can be further used for preparing a solid product.

The invention relates to the technical field of wave-absorbing materials, in particular to wave-absorbing PMI foam and a preparation method and application thereof. The method comprises the following steps: mixing methacrylonitrile, acrylic acid, a retarder, an initiator, a cross-linking agent, a foaming agent and a nucleating agent to obtain a mixed solution; the preparation method comprises the following steps: dissolving sulfonated polyaniline in a mixed solution, carrying out ball milling, and carrying out A reaction to obtain a PMI foaming precursor; the PMI foaming precursor is subjected to foaming treatment in a gradient heating and gradient cooling mode, and the wave-absorbing PMI foam is obtained. According to the invention, the conductive polymer material is adopted as the absorbent, and the problems of absorbent sedimentation and agglomeration caused by density difference between the absorbent and the reaction monomer are solved more fundamentally through mutual dissolution of solutions, so that the uniformity and stability of the performance of the wave-absorbing PMI foam are effectively ensured.

This invention discloses a soothing and oil-controlling composition, its preparation method, and its application. The aim is to provide a composition that effectively increases bioavailability, promotes skin penetration of baicalin, reduces the dosage of baicalin, and possesses soothing and oil-controlling properties. It also provides a method for preparing the extract of the composition that improves extraction rate, promotes mutual solubility, is easily implemented on a production line, facilitates large-scale production, and produces a high-clarity and highly stable extract. The technical solution includes 150-200 parts of Scutellaria baicalensis and 40-80 parts of Corydalis yanhusuo; it belongs to the field of cosmetic technology.

The invention provides a method for preparing a reversible thermally induced nano-emulsion under the condition of no addition of a surfactant. The method is based on a two-phase liquid system comprising a first liquid phase and a second liquid phase which are immiscible, and the vapor of the first liquid phase is dissolved in the second liquid phase by heating to a temperature sufficient to vaporize the first liquid phase to form a homogeneous mixture; the system is then cooled to a temperature below the saturation point of the first liquid phase in the second liquid phase, thereby inducing nucleation of the first liquid phase in the second liquid phase to form nanodroplets, resulting in a thermally induced nanoemulsion. The nano-emulsion can be decomposed and recovered into an original two-phase liquid system when being heated again, the reversible and controllable nano-emulsion preparation method is achieved through repeated heating-cooling steps, and the preparation method is suitable for various thermal response type intelligent conveying systems and other application scenes.

The invention relates to a method for measuring the solubility and the diffusion coefficient of a partially intersoluble liquid system, and belongs to the technical field of solubility and diffusion coefficient measurement. The width of the widest part of a diffusion image of partially intersoluble liquid is consistent with the width of a saturated solution image for the first time; collecting width images of different solutions with known mass fractions, obtaining a relation omega-W between the mass fractions of the solutions and the image widths, substituting the saturated solution layer width of the diffusion image into the relation omega-W to obtain the mass fraction of the saturated solution, and obtaining the solubility of the solutions through a solubility calculation formula; when the diffusion coefficient is measured, the diffusion coefficient is obtained based on a one-dimensional semi-infinite long diffusion model by adopting an equal refractive index thin layer method. According to the invention, the solubility and diffusion coefficient parameters can be obtained at the same time, the experiment efficiency is improved, and the device can be suitable for measuring the solubility and diffusion coefficient of different parts of mutually soluble system liquid.

A liquid crystal composition includes at least one compound represented by formula I and at least one compound represented by formula II. The liquid crystal composition has a relatively large absolute value of dielectric anisotropy, a relatively large K value, a relatively long low-temperature storage time period, a relatively low polymer layer surface roughness, a relatively small pre-tilt angle, a relatively fast speed for forming pre-tilt angle, a relatively low polymer residue, a relatively high VHR and a relatively good pre-tilt angle stability, while maintaining appropriate clearing points, optical anisotropy and rotational viscosity. A liquid crystal display device containing the liquid crystal composition has a relatively wide temperature usage range, relatively good contrast, and relatively good low-temperature mutual solubility. In addition, the production process of PSA-type liquid crystal displays is improved, and at the same time, the problems of “image sticking”, uneven display and “broken bright spots”.

This invention provides an apparatus and method for preparing selectively soluble microspheres, where the compound microspheres are readily soluble in a first solvent, substantially insoluble in a second solvent, and the first and second solvents are miscible. The main functional modules of the apparatus include: a real-time particle size detection module, a microsphere-liquid separation module, a concentration titration module, a centrifugal differential spheroidizing module, and a microsphere drying and separation module. This apparatus can separate the spheroidized compound and polymer materials, ensuring high sphericity of the compounds and polymer materials, preventing microsphere adhesion, and maintaining the dispersion of the compound microspheres. Simultaneously, the solvent and titration system are recycled to ensure that the particle size of the compound microspheres gradually decreases.

The invention relates to a device (100) for performing mechanical work and a method for operating the device (100). The device comprises at least one expansion chamber (1); and at least one mixture (2) of two miscible substances (3, 4) wherein at least one change of a state parameter (T, P), such as a temperature (T) and / or a pressure (P), influences at least one solubility of the substances (3, 4) in each other, wherein a quantity of the mixture (2) is contained in the expansion chamber (1); and at least one work unit (5) for converting the volume change work of the mixture (T, P) resulting from a change of a state parameter (T, P) into at least mechanical work.

The invention relates to the technical field of gas separation membrane materials, in particular to a defect-free polysulfone / MIL-160 / CAU-10-F composite membrane material and a preparation method and application thereof.Polysulfone serves as a support and is compounded with MIL-160 / CAU-10-F to form the defect-free polysulfone / MIL-160 / CAU-10-F composite membrane material or a composite membrane, and the defect-free polysulfone in the composite membrane material has the advantages that the defect-free polysulfone in the composite membrane material can be separated from the MIL-160 / CAU-10-F composite membrane material at a high temperature; good mechanical property and oxidation resistance can be maintained, and meanwhile, the gas flux is relatively high; meanwhile, a hydrogen bond network structure formed at the interface of polysulfone and MIL-160 / CAU-10-F can further enhance the intersolubility with the interface of MIL-160 / CAU-10-F, and the performance stability and the plasticizing resistance of the composite membrane material are further improved. The flawless polysulfone / MIL-160 / CAU-10-F composite membrane disclosed by the invention has excellent plasticizing resistance and durability.

The invention relates to a method for refining lactide by coupling secondary extraction with rectification, which comprises the following steps: carrying out first extraction on crude lactide, carrying out second extraction on a first raffinate phase by using a first extraction agent which is water or a mixed solvent of water and low-carbon alcohol, the second extraction agent is a solvent which is immiscible with water and lactide or is low in solubility and has the density between that of water and lactide, obtaining a wet solid with the main component of L-lactide, carrying out reduced pressure drying and melting, then carrying out rectification, and collecting a light component which is a lactide product. According to the method, the lactide is purified and refined by adopting a secondary extraction coupling rectification process, two solvents are adopted for secondary extraction, optical purification is performed firstly, and then chemical purification is performed through rectification, so that the design and operation difficulty of rectifying and purifying the lactide is effectively reduced, and the product yield and quality are improved.

The invention discloses a method for preparing high-purity metal through electron beam melting, which is characterized in that specific alloying metal powder is added in a cold pressing stage for powdery metal raw materials, so that the alloying metal powder is firstly melted to form a liquid phase in the initial stage of electron beam melting, and densification, bonding and integral forming of main metal powder are realized; and a necessary high-temperature sintering step in a traditional process is omitted. And in the high-temperature electron beam melting stage, the impurities are preferentially distributed into a second phase rich in alloying metal through the affinity interaction between the alloying metal and the target impurities and the limited mutual dissolution characteristic of the alloying metal and the target impurities in the melt. And in combination with the directional solidification process from bottom to top, the second phase rich in impurities is concentrated and enriched at the solidification tail end, and finally an impurity layer capable of being integrally cut off is formed at the top of the crucible. According to the method, the thermodynamic activity reduction and solidification segregation behaviors of the impurities are enhanced, the removal efficiency of the impurities difficult to separate can be remarkably improved, the removal rate of the impurities in a typical system can reach 95% or above, and the purity of main metal can be improved to 99.999% or above.

The application discloses a process method for co-production of L-ascorbyl palmitate and biodiesel, which comprises the following steps: performing a first enzyme catalysis reaction on L-ascorbic acid and palm oil to obtain a first enzyme catalysis mixture; performing layer separation and vacuum distillation treatment on the first enzyme catalysis mixture to obtain a first enzyme catalysis product; performing a second enzyme catalysis reaction on the first enzyme catalysis product to obtain a second enzyme catalysis mixture; and performing distillation treatment on the second enzyme catalysis mixture under online dehydration conditions to obtain L-ascorbyl palmitate and biodiesel; the application utilizes the solubility of L-ascorbic acid in short-chain alcohol, promotes mutual solubility of L-ascorbic acid and palm oil, adopts two-step enzyme catalysis reaction under mild conditions, realizes reaction of L-ascorbic acid and palm oil catalyzed by lipase to generate L-ascorbyl palmitate, and realizes reaction of palm oil and short-chain alcohol catalyzed by lipase to generate biodiesel, so that integrated co-production of various high-value-added products is realized.

A system for containing a chemical mixture including a liquid with at least two intermiscible components having different densities, and a gas. The system includes a spherical reservoir, including top and bottom sections and a bottom; a vertically positioned standpipe having a top section in fluid communication with the top section of the spherical reservoir through a connection pipe, and a bottom section including a bottom, in fluid communication with the bottom section of the spherical reservoir through a connection pipe; a conduit for supplying the gas from the chemical mixture; and first and second draining pipes in fluid connection with the bottoms of the spherical reservoir; and of the standpipe, respectively. The bottom section of the standpipe is higher than the bottom section of the spherical reservoir, and the connection pipe is a downwardly-inclined pipe from the bottom section of the standpipe to the bottom section of the spherical reservoir.