26results about How to "Appropriate viscosity" patented technology

The utility model discloses a preheating system for low-temperature starting of a diesel automobile. The preheating system comprises a sensing module, a preheating module and a control module, wherein the sensing modules are fixedly arranged inside and / or outside a diesel automobile body respectively; the preheating modules are respectively and fixedly arranged near and / or inside a diesel automobile cooling system, an intake manifold and a gearbox; the control module is fixedly arranged in a vehicle-mounted electronic system of the diesel automobile; the control module is used for receiving input signals such as temperature and pressure obtained by the sensing module, automatically controlling the preheating module to preheat intake air, an engine cylinder body and a gearbox of the diesel automobile, and automatically adjusting the preheating time and strength, so that the low-temperature starting performance is effectively improved, and meanwhile, the low-temperature starting performance of the diesel automobile is improved. Waste of fuel oil and electric quantity of a storage battery caused by excessive preheating is avoided, in addition, it is ensured that lubricating oil reaches proper viscosity before starting, mechanical abrasion at the moment of starting is reduced, and safe and rapid starting is achieved.

The invention discloses photocuring 3D printing metal slurry and a preparation method thereof.The photocuring 3D printing metal slurry is prepared from, by mass, 30%-77% of organic monomers, 0.001%-20% of dispersing agents, 0.1%-6% of photoinitiators and 10%-67% of composite powder; the composite powder comprises an organic shell and a metal core. The compatibility of an organic matter shell and an organic monomer of the composite powder in the slurry is better, and the chemical interaction force of the surface is larger, so that the dispersion of the composite powder in an organic monomer solution is promoted, and good stability is provided for the photocuring slurry; the refractive index of the organic matter serving as the shell is close to the refractive index of the organic monomer solution, the refractive index difference between the powder and the organic monomer solution is reduced, the curing thickness of the slurry is greatly increased, and the stable photopolymerization slurry with the good curing characteristic is obtained.

The invention belongs to the technical field of crystallizer casting powder, and provides crystallizer casting powder for medium carbon steel and a preparation method of the crystallizer casting powder. The crystallizer casting powder comprises the following raw materials: 20-40 parts of wollastonite, 20-40 parts of magnesium slag, 2-6 parts of quartz, 1-5 parts of bentonite, 2-6 parts of flint clay, 3-10 parts of fluorite, 1-3 parts of sodium carbonate, 1-2 parts of manganese carbonate, 3-7 parts of boron glass powder, 2-4 parts of magnesia powder, 6-10 parts of a carbon material and 2-4 parts of a modified binder. The crystallizer casting powder disclosed by the invention is reasonable in proportion of chemical components, has proper melting speed and viscosity, effectively ensures the thickness of a liquid slag layer, and can be uniformly consumed, so that the continuous casting process is ensured to be carried out smoothly, and the quality defects of corner cracks, narrow edge bulging, corner transverse cracks and the like of a medium carbon steel casting blank are avoided.

The invention discloses a polyimide hot-melt prepreg, a composite material and a preparation method of the polyimide hot-melt prepreg and the composite material, and belongs to the technical field of composite materials. The preparation method comprises the following steps: preparing a polyimide resin solution for impregnating fibers and self-adhering a surface layer from polyimide, a single solvent and a mixed solvent; preparing semi-solid polyimide prepreg for fiber impregnation and surface layer self-adhesion based on the two polyimide resin solutions, and then preparing an adhesive film and sequentially compounding with fiber cloth to obtain a fiber prepreg; and preparing the polyimide hot-melt prepreg based on the fiber prepreg. According to the preparation method disclosed by the invention, the reinforced fibers are fully infiltrated, and then the toughened and tackified resin layer is compounded on the surfaces of the impregnated reinforced fibers, so that the polyimide hot-melt prepreg with controllable resin content and good paving adhesiveness is obtained, and therefore, the low-porosity high-quality fiber reinforced composite material is prepared, the control difficulty of a forming process is greatly reduced, and the production efficiency is improved. The production efficiency is improved.

The invention relates to a ceramic-based composite material / environmental barrier coating bonding layer integrated preparation method, which is characterized in that an EBC bonding layer is introduced in the preparation process of a composite material through dipping-curing-cracking process treatment, so that the composite material is prevented from being subjected to high temperature again, the mechanical property of the composite material is ensured, and the preparation efficiency of a coating is improved; a SiBCX ceramic coating is prepared on the surface of a composite material by adopting a ceramic precursor containing silicon and boron, and an EBC coating bonding layer with the thermal expansion coefficient close to that of the composite material is formed. The bonding layer is prepared from the ceramic precursor, so that thermal mismatching of the bonding layer can be effectively avoided, the temperature resistance level of the environmental barrier coating is improved, and meanwhile, the preparation efficiency of the environmental barrier coating can also be improved.

The invention discloses flame-retardant polyether polyol for high-density spraying as well as a preparation method and application of the flame-retardant polyether polyol, and belongs to the technical field of all-water spraying flame retardance. According to the technical scheme, the flame-retardant polyether polyol for high-density spraying is obtained by taking sucralose and small-molecular alcohol as composite initiators and reacting with epoxypropane under the action of an alkali metal catalyst, and the preparation method comprises the following steps of: preparing the flame-retardant polyether polyol for high-density spraying by taking the sucralose and the small-molecular alcohol as the composite initiators and taking the sucralose and the small-molecular alcohol as the composite initiators; comprising the following steps: 1) adding sucralose, small-molecular alcohol and water into a reaction kettle, adding an alkali metal catalyst, and sealing the reaction kettle; according to the flame-retardant polyether polyol for the high-density spraying, sucralose is introduced as an initiator and serves as a reactive flame retardant, and the defects that the flame-retardant effect is not lasting, compatibility is poor, the performance of a polyurethane material is prone to being reduced and the like generally existing in a common additive type flame retardant are overcome.

The utility model relates to the technical field of gluing devices, and discloses a gluing device for antibacterial formaldehyde-removing wall cloth processing, which comprises a working box, a placing groove is formed in the working box, a third support frame is fixedly connected to one side, far away from a first support frame, of the top of the working box, and a motor is fixedly connected to the side wall of a second support frame. The output end of the motor is fixedly connected with a glue roller, the glue roller is rotationally connected to the inner wall of a second supporting frame, a scraping plate is arranged on the second supporting frame, scraping assemblies are arranged on the two sides of the top of the working box, and the scraping plate is used for scraping redundant glue on the glue roller; by simply rotating the screw and accurately adjusting the distance between the scraper and the rubber roller, the problems of waste caused by excessive glue, uneven surface of the wall cloth, glue seepage and the like are effectively avoided, the quality defects of unstable pasting, hollowing, edge warping and the like of the wall cloth caused by too little glue are effectively avoided, and the stable and reliable quality of the wall cloth is ensured.

The present invention relates to a moisture-curable siloxane composition comprising an organohydroxy polysiloxane, an organopolysiloxane, an alkoxy group-containing silane compound, a curing catalyst, and a tackifier, in which the organohydroxy polysiloxane comprises an alkoxy group-containing repeating unit, the organopolysiloxane includes a first organopolysiloxane terminated with an alkoxy group at opposite ends and a second organopolysiloxane terminated with a silanol group at opposite ends, and the tackifier includes a cyclosiloxane-based compound, and a cured product prepared therefrom.

Provided is an aqueous working fluid containing compound (A) represented by the following general formula (a-1) and having a weight average molecular weight of 12,000 or less, and water-insoluble compound (B) having a polyoxyalkylene group, wherein the aqueous working fluid has a viscosity at 25°C of 4.0 to 20.0 mPa·s: wherein A is an alkylene group having 2 to 4 carbon atoms, and when there is a plurality of A, the plurality of A may be the same or different; and m is an integer of 1 or more.

The invention provides an electrolyte of a high-safety sodium ion battery, which comprises the following components: a solvent which takes propylene carbonate (PC) as a main solvent and contains ethylene carbonate (EC) and dimethyl carbonate (DMC); the coalescing agent is fluoroethylene carbonate (FEC) and 1, 3-propane sultone (1, 3-PS); conducting salt: sodium perchlorate (NaClO4); additives: acesulfame sodium and a proper amount of sodium nitrate. The sodium ion battery provided by the invention has more excellent properties.

This application relates to the field of refrigeration systems, disclosing a refrigeration oil, a working fluid composition for refrigeration machines, and a refrigeration system. By adding a specific type of surfactant, this application significantly reduces the surface tension of the refrigeration oil, improves its compatibility with refrigerants such as hydrofluorocarbons, and reduces oil film formation or oil residue in the refrigeration system. The refrigeration oil described in this application has suitable viscosity and solubility viscosity, meeting the normal operating requirements of the compressor, while also effectively inhibiting the formation of oil film on the heat exchanger surface, thereby improving heat exchange efficiency. Furthermore, this refrigeration oil has good lubricity, low-temperature fluidity, and thermochemical stability, which can promote the circulation of the refrigeration oil in the refrigeration system pipeline, improve oil return efficiency, and extend the compressor's service life.

The present application can provide a curable composition that can ensure excellent storage stability regardless of environmental changes by having excellent resistance to moisture and humidity; exhibits room temperature curability and rapid curability in a high humidity environment even if an excessive amount of a filler composition is included; exhibits appropriate viscosity, thixotropy, adhesion and / or thermal conductivity before and after curing; and can form a cured product that is not brittle and is flexible by adjusting the hardness.

According to the PC / GF composite material and the preparation method thereof, working state parameters such as the temperature, the pressure and the rotating speed of a double-screw extruder are monitored and collected in real time through a sensor group, and a data processing and analysis algorithm is introduced at the rear end to carry out time sequence collaborative correlation analysis on the working state parameters; therefore, whether the current extrusion state is stable or not is judged. Therefore, the dynamic change of the working state of the double-screw extruder can be effectively monitored, and abnormal conditions can be found in time, so that a basis is provided for optimization and adjustment of the extrusion process, and in this way, real-time monitoring and automatic control of the extrusion process can be realized, so that stable operation of the extrusion process is ensured, and the production efficiency is improved. And the melt is ensured to have proper viscosity and flowability.

A method for reducing slag viscosity during blast furnace smelting belongs to the field of ironmaking technology. This invention solves the problem that excessively high slag viscosity hinders desulfurization and makes slag discharge difficult. Specifically, it includes the following steps: S1: Increasing the slag temperature from the original 1530℃ to above 1550℃; S2: Controlling the basicity of the slag, which was originally 1.20 to 1.28 times higher, to between 1.15 and 1.25 times higher; S3: Increasing the MgO content in the original slag from 6% to 8% to 12%; S4: Reducing the FeO content in the original primary slag from 35% to ≤22%; S5: Reducing the Al2O3 content in the original slag from 20% to ≤19%; S6: Controlling the CaF2 content in the original slag from 1.0% to 1.0% to 2.0%. This invention, through precise control of the composition, maintains suitable viscosity and surface properties in the slag. It significantly improves the desulfurization reaction efficiency and desulfurization capacity of slag, and improves the quality of molten iron; moreover, the optimized viscosity range, combined with the increased tapping frequency, ensures that slag and iron can be smoothly separated and discharged, promoting efficient smelting.

The invention discloses a preparation method of Prussian blue-based ink and an electrochromic device. The method comprises the following steps: S01, preparing Prussian blue particles; s02, carrying out surface modification on the Prussian blue particles by adopting ferrous cyanide ions and n-octylamine to obtain modified Prussian blue particles; and S03, stirring the modified Prussian blue particles and ethanol to obtain the Prussian blue-based ink. The film-forming property of the Prussian-blue-based ink prepared by the method is improved, and the prepared electrochromic device containing the Prussian-blue-based ink coating shows the characteristics of high optical modulation rate, quick response and excellent long cycle stability.

The invention relates to the field of building materials, in particular to silicon-aluminum cementing material concrete and a preparation method thereof. The silicon-aluminum cementing material concrete comprises 100 to 200 parts of red mud, 0 to 100 parts of fly ash, 0 to 100 parts of steel slag, 0 to 100 parts of lithium slag, 100 to 300 parts of slag powder, 0 to 100 parts of cement, 0 to 50 parts of gypsum, 150 to 200 parts of water, 40 to 50 parts of an alkali activator, 10 to 40 parts of steel fiber, 700 to 750 parts of sand, 900 to 1200 parts of gravel and 1 to 5 parts of a water reducing agent. The water reducing agent comprises a naphthalene-based superplasticizer and calcium lignosulphonate; the cement comprises Portland cement and / or Portland cement clinker. The using amount of solid waste can reach 90%, the compressive strength of the concrete cured for 1 d is larger than 30.0 MPa, the compressive strength of the concrete cured in water for 28 d is larger than 60.0 MPa, and the concrete has the advantages of being fast in strength forming and high in final strength.

The invention relates to a high-strength and high-toughness motor pouring sealant, which comprises a motor pouring sealant formed by mixing a component A and a component B. The component A and the component B are mixed according to a weight ratio of 100: 16. The component B is prepared from the following components in parts by weight: 50 to 150 parts of epoxy resin, 5 to 30 parts of reactive diluent, 15 to 200 parts of reinforcing filler, 30 to 300 parts of aluminum hydroxide, 5 to 20 parts of toughened resin, 0.2 to 1.5 parts of color paste and 0.2 to 1.5 parts of tackifier; the component B is prepared from the following components in parts by weight: 5 to 30 parts of polyol curing agent and 5 to 30 parts of amine curing agent; the viscosity of the motor pouring sealant is 1000-2000 mpa.s, the thermal conductivity is 0.5-1.0 W / m.k, the breakdown voltage is larger than 20 kV / mm, and the flame retardant property is V0 level. According to the motor pouring sealant disclosed by the invention, the raw materials of a synergistic system of the epoxy resin, the toughened resin, the reinforcing filler, the composite curing agent and the tackifier are matched in a special proportion, so that the motor pouring sealant with high heat conductivity and good insulating and flame-retardant properties under low viscosity is realized.

The utility model discloses feeding equipment for ceramic production, and relates to the technical field of ceramic production equipment.The feeding equipment comprises a mounting support and a smashing mechanism, a treatment box is arranged at the top end of the mounting support, and the smashing mechanism is arranged on the inner side of the treatment box; the feeding assembly can cut mud blocks through the arrangement of a cutting net, so that the mud blocks are convenient to smash, are intensely stirred under the action of the stirring assembly and are fully mixed with water, so that uniform and consistent ceramic slurry is formed, the continuity and homogeneity of raw materials are ensured, a solid foundation is laid for producing high-quality ceramic products, and the production efficiency is improved. Through the arrangement of the adding assembly, during use, pigments and additives can be added into ceramic slurry, the performance of the ceramic slurry is improved, the slurry has proper viscosity and fluidity under the condition of low water consumption, the dehydration performance of the slurry can be improved, it is guaranteed that the slurry can be evenly distributed in the forming process, and defects are reduced.

The present application relates to a composition comprising an antigen-binding fragment and an excipient. The antigen-binding fragment comprises an immunoglobulin single variable domain capable of specifically binding to PD-L1 and comprising CDR1-3, the CDR3 comprising an amino acid sequence set forth in SEQ ID NO: 47, and the excipient may comprise proline. The composition has good stability and suitable viscosity and can be used for subcutaneous injection.

The present invention belongs to the technical field of biomedical dressings, and discloses a dressing containing polysaccharides, and a preparation method and application thereof. The polysaccharide-containing dressing comprises ganoderma lucidum β-glucan, ganoderma lucidum chitosan, glycerol and carbomer. The present invention uses ganoderma lucidum β-glucan and ganoderma lucidum chitosan, which are key active ingredients of ganoderma lucidum, as main raw materials, and glycerol and carbomer as auxiliary raw materials to prepare a dressing containing polysaccharides, which can be applied to the covering and care of non-chronic wounds, such as superficial wounds, first-degree or shallow second-degree burn wounds, surgical suture wounds, laser / photon / acid peeling / microneedle treatment / micro-plastic surgery wounds, to provide a microenvironment for wound healing, and promote the repair and healing of wounds. The dressing has simple ingredients and high safety, and can be widely used in the preparation of scald treatment drugs or non-chronic wound care products.

The invention relates to the technical field of dispersing agents, and discloses a dispersing agent for solvent type ceramic ink-jet ink and a preparation method of the dispersing agent. A comb-shaped polymer in the comb-shaped dispersing agent is prepared by reacting polyamide which is synthesized by reacting polyethylene polyamine and binary acid and contains primary amine at the tail end with polyacrylate which is synthesized by reversible addition-fragmentation free radical polymerization and contains carboxylic acid at one end, and the comb-shaped dispersing agent can be prepared by diluting the comb-shaped polymer with a solvent. Amino groups in the dispersing agent can be firmly adsorbed on the surfaces of pigment particles, and the dispersing agent cannot fall off from the pigment particles due to heating and other reasons; polyalkyl acrylate in the dispersing agent is dissolved in the solvent and fully extends, a steric hindrance effect is provided, and pigment particles dispersed in the solvent are prevented from being agglomerated and precipitated. The solvent type ceramic ink prepared from the dispersing agent is free of precipitation of ceramic pigment after standing at room temperature for two months, shows excellent storage stability, has proper viscosity and density, and meets the technical requirements of ink-jet printing.

The present invention relates to an addition-curable siloxane composition, and an electronic / electrical apparatus comprising a cured product prepared therefrom, the composition including: a first organopolysiloxane containing an aryl group and having a refractive index of 1.48 to 1.50 with respect to a wavelength of 589 nm; a second organopolysiloxane containing an aryl group and having a refractive index of 1.43 to 1.47 with respect to a wavelength of 589 nm; a third organopolysiloxane that includes an alkenyl group directly bonded to silicon and does not include an aryl group; an organohydrogenpolysiloxane that containing contains a hydrogen group directly bonded to silicon and has a refractive index of 1.43 to 1.50 with respect to a wavelength of 589 nm; and silica.

The conductive ink for printing the battery electrode consists of the following components in percentage by weight: 60-80% of an active material, 5-15% of a conductive agent, 5-10% of an adhesive, 20-40% of a solvent and 0-5% of an additive, and the sum of the weight percentages of the components is 100%, the conductive ink consists of an active material, a conductive agent, a water-soluble adhesive, a solvent and an additive, so that the conductive ink is ensured to have proper viscosity, and the loading capacity of an active substance in a printing process is met; the invention further discloses a battery electrode printing method which comprises the following specific steps: step 1, designing various parameters of the photogravure press; 2, a printing machine is started, the base material is introduced into the printing machine, and continuous printing is conducted through a printing unit; and step 3, after printing is finished, post-processing is carried out, according to the method, printing parameters are optimally designed, and the uniformity, the adhesive force and the density of the electrode layer can be ensured.

An object is to obtain a photocurable inkjet printing ink composition demonstrating not only excellent LED curability and anti-yellowing property but also excellent solubility, while allowing its viscosity to be adjusted to an appropriate level even in the absence of solvent. As a solution, a photocurable inkjet printing ink composition is provided that contains 1.0 to 10.0% by mass of amine-modified oligomers relative to all photopolymerizable components, as well as 1.0 to 40.0 parts by mass of photopolymerization initiators expressed by formula (1) below, and 0.3 to 5.0 parts by mass of thioxanthone-based sensitizers relative to all photopolymerizable components representing 100 parts by mass.

A viscous spacer fabric, its manufacturing method, and garments made therefrom are disclosed. The viscous spacer fabric includes a first outer layer, an intermediate layer, and a second outer layer, with the intermediate layer interposed between and woven with both the first and second outer layers. At least one of the first and second outer layers has a viscous surface formed by knitting of thermoplastic elastic yarn, the viscous surface being wholly or partially exposed to the outside of the first or second outer layer. This viscous spacer fabric is suitable for making garments that come into close contact with the wearer's skin and can be used as a replacement for invisible underwear or underwear made of silicone. In addition to its anti-slip and adhesive properties, this viscous spacer fabric also provides better breathability, heat or moisture permeability, good comfort, excellent stretch and resilience, and environmental friendliness.

The present invention relates to the technical field of ceramic glaze production, specifically to a composite ceramic glaze and a preparation method and application method thereof. The composite ceramic glaze comprises the following raw materials: quartz; kaolin; feldspar; talc; boric acid; limestone; nano silicon dioxide; nano alumina; silver-loaded zeolite; nano titanium dioxide; zinc oxide; silicon powder; magnesium oxide; bentonite; zirconium oxide; cerium oxide; lanthanum oxide; lithium fluoride; luminescent phosphor; long afterglow phosphor. The present invention greatly reduces the sintering temperature by compounding the raw materials in the glaze, thereby providing conditions for the addition of phosphors. By doping and compounding the phosphors and coating the surface with a film layer, not only the dispersibility thereof is improved, but also the stability thereof at high temperatures is improved. In the later sintering process, the internal structure of the phosphor changes little, and it can show good fluorescence performance and has self-cleaning performance.