172results about How to "High viscosity" patented technology

The invention provides a synthetic lubricating oil composition and application thereof, and belongs to the technical field of lubricating oil. The synthetic lubricating oil composition comprises base oil, a pour point depressant and a composite additive, the base oil comprises synthetic ester base oil; the synthetic ester base oil consists of low-viscosity synthetic ester and high-viscosity synthetic ester. The composition has ultrahigh viscosity index and low-temperature performance, is diesel engine lubricating oil with very excellent low-temperature performance, passes a graphite flake friction characteristic test and a THOT oxidation test required by TES 439 specifications, and can meet the lubrication requirements of an engine and a transmission system.

The display device has a plurality of curved display regions, the plurality of curved display regions are spliced into a special-shaped display region, and each curved display region includes a plurality of spliced display units. Each display unit is a triangular structure, the radius of curvature of each display unit in the curved display region is equal, each curved display region has a plurality of vertices, and can enclose a regular polygon. In the application embodiment, a group of display units are spliced to form a curved display region, and a plurality of curved display regions are spliced into a special-shaped display region, so as to realize the display of a special-shaped picture, improve the picture display effect, and make the user have better immersion. In addition, the display unit is arranged as a triangular structure, so as to reduce the number of types of display units, reduce the mold opening cost of the display unit, and reduce the process difficulty of the display device.

The present application belongs to the technical field of processing of by-products of brewing, and specifically discloses a method and device for reducing viscosity of distiller's grains based on enzyme treatment, which comprises the following steps: S1, dispersing the distiller's grains of liquor and mixing the auxiliary materials by means of a stirrer; S2, adjusting the pH of the uniformly dispersed and mixed distiller's grains by means of ammonia water, and then adding enzyme hydrolysate, and performing enzymolysis for 24 hours; and S3, further adding decomposition enzyme to perform enzymolysis into sugar. The method and device for reducing viscosity of distiller's grains based on enzyme treatment are used to disperse the distiller's grains and mix the auxiliary materials by means of the inner rotation and outer rotation modes of the stirrer, and to reduce the viscosity of the distiller's grains by means of a two-step enzyme hydrolysis method, so that the viscosity of the distiller's grains is reduced and the saccharification rate of the distiller's grains is improved, thereby laying a foundation for further fermentation of the distiller's grains to produce protein.

The application provides a preparation method of a binder, the binder is prepared from modified polyacrylonitrile through a cross-linking reaction and post-treatment; the modified polyacrylonitrile is a hydrolysis product of polyacrylonitrile, and the cross-linking agent of the cross-linking reaction is epichlorohydrin. The application also provides corresponding binders, lithium ion battery negative electrodes, lithium ion batteries and electrochemical devices. The binder of the application can significantly improve the cycle stability and rate performance of the battery, and the effect is particularly significant for a silicon negative electrode with large volume expansion. The preparation process of the binder of the application has the advantages of simple operation and low cost, and is easy to realize industrial production.

The application discloses an antioxidant composite ceramic aerogel and a preparation method thereof, and belongs to the technical field of composite ceramic aerogels.The main body of the antioxidant composite ceramic aerogel is a silicon nitride aerogel, the nanostructure of the silicon nitride aerogel is one of one-dimensional silicon nitride nanowires and two-dimensional silicon nitride nanobands or a combination of the two nanostructures, and a mullite coating and a copper-nickel metal coating are sequentially coated on the nanostructure of the silicon nitride aerogel from inside to outside.The application can solve the technical problem that the prior art cannot prepare silicon nitride ceramic aerogels which can stably serve in a high-temperature oxygen environment at low cost and in batches.

The invention discloses a liquid manure distributor and a drip irrigation system, the liquid manure distributor comprises a manure storage tank and at least one screw rod, the outer wall of the screw rod is spirally provided with conveying blades in a surrounding manner, the power input end of the screw rod is provided with a motor, and the screw rod is transversely arranged in the manure storage tank in a penetrating manner; when the motor is kept in a starting state and liquid manure is continuously input from the manure inlet, the liquid manure firstly falls on the conveying blades of the screw rod, meanwhile, the motor drives the screw rod to continuously rotate, and the conveying blades of the screw rod push the liquid manure on the conveying blades to spirally move until the liquid manure reaches the bottom of the screw rod; the liquid manure is separated from the screw rod, falls into the bottom of the manure storage tank and is finally discharged through a plurality of distribution pipes; wherein in the process that the liquid manure falls on the conveying blades of the screw rod and falls from the screw rod, the vertically falling liquid manure is transversely crushed by the screw rod, so that the liquid manure is uniformly distributed at the bottom of the manure storage tank, and the uniform discharge of the liquid manure is realized.

The invention discloses a cement stabilized macadam test piece and a preparation method thereof, and belongs to the technical field of traffic civil engineering. The test piece is prepared from the following components in parts by mass: 85 to 92 parts of graded aggregate, 6 to 12 parts of composite cementing material and 0.3 to 0.8 part of special admixture; the graded aggregate is of a skeleton-transition-filling three-stage structure, and the filling aggregate contains surface modified silicon carbide microbeads; and the special additive contains a slump-retaining polycarboxylic acid water reducing agent and a hydroxypropyl methyl cellulose-xanthan gum composite adhesive. The components of the test piece have a synergistic effect, and through multi-dimensional synergy of aggregate grading, modified filler and admixture regulation and control, the problems of large-particle-size broken stone sinking, uneven aggregate distribution and segregation, insufficient compactness and the like in the forming process of the cement stabilized broken stone test piece are effectively solved; the compactness, the mechanical strength and the durability of the cement stabilized macadam test piece containing the large-particle-size macadam are remarkably improved, and the composition materials of the cement stabilized macadam test piece can be used for base layer construction of high-grade highways and municipal main roads and meet the heavy-load traffic requirement.

The object of the present invention is to provide an alcohol composition that contains hydroxypropyl methylcellulose or methylcellulose in a manner that allows the thickening properties of hydroxypropyl methylcellulose or methylcellulose to be exerted, thereby not only having a viscosity that is easy to spread and does not drip easily, but also suppressing liquid dripping and / or improving transparency, and having a good spreadability. The above object is achieved by an alcohol composition comprising: 60 to 93 parts by mass of at least one alcohol selected from ethanol and isopropanol; 3.0 to 39.9 parts by mass of water; and 0.1 to 4 parts by mass of at least one water-soluble cellulose ether selected from hydroxypropyl methylcellulose and methylcellulose, wherein the loss tangent (tanδ) of the alcohol composition, measured at 20°C, a frequency of 1 Hz, and a deformation of 0.1%, is 0.10 to 1.00.

The present application relates to a kind of weak magnetic lepidolite pre-elution waste-flotation enrichment method, belong to mineral processing technical field.The present application carries out coarse grinding, slurry conditioning to low-grade weak magnetic lepidolite, is pre-elution waste by high gradient magnetic separation, obtains coarse-grained high-grade lithium-containing magnetic product, again by concentration, fine grinding treatment, adds composite regulator and composite collector to carry out the selective regulation of slurry environment and mineral surface characteristics, using two roughing, once scavenging, once concentration can obtain high-quality lithium concentrate.The present application removes most of the gangue in the ore by magnetic separation, and once enrichment of weak magnetic lepidolite greatly reduces the ore processing capacity of subsequent process;Adopting fine grinding realizes that lithium mica is fully dissociated, and the new composite reagent developed is used to carry out selective hydrophobic flotation to lithium-containing magnetic product, which can realize secondary enrichment of weak magnetic lepidolite, and provides a new method for clean separation and efficient recovery of low-grade complex and difficult-to-select lithium ore.

The invention relates to the technical field of aluminum material processing oil, and particularly discloses an environment-friendly residue-free aluminum material processing oil composition and a preparation method thereof. The environment-friendly residue-free aluminum product processing oil composition is prepared from the following raw materials in parts by weight: 60 to 100 parts of polyglycol ether, 2 to 17 parts of synthetic ester, 0.5 to 2.5 parts of antioxidant, 0.1 to 0.5 part of metal corrosion inhibitor and 0.1 to 3 parts of tackifier. The synthetic ester comprises star-shaped complex ester, and the star-shaped complex ester comprises the following raw materials: pentaerythritol, oleic acid, phenylphosphonic acid and boric acid. The environment-friendly residue-free aluminum product processing oil composition disclosed by the invention can be used for forming and processing aluminum products, can effectively inhibit oxidation caused by factors such as high-temperature friction heat and metal catalysis in a cyclic heating process under heavy-load and high-temperature working conditions, can realize almost no residue after aluminum product post-treatment at 540 DEG C, ensures that the surfaces of the aluminum products are bright and free of discoloration, and has the advantages of simple process, low cost and the like. And the subsequent cleaning procedure is omitted.

The invention relates to a water injection well profile control method based on protection of a low permeability layer and application of the water injection well profile control method. The water injection well profile control method comprises the steps that in the first slug, a medium-low permeability layer is temporarily plugged through a temporary plugging agent; in the second slug, a gel profile control agent is used for blocking the high-permeability layer; according to the third slug, the system injected into the high-permeability layer in the early stage is moved to the deep portion of the oil reservoir through the displacement slug, and deep profile control is achieved; and in the fourth slug, a blocking remover is used for conducting blocking removal on the low-permeability layer. The method has the characteristics of simple synthesis process, no by-product, high viscosity and shear resistance, and also has excellent flowability and injectability; after the profile control system prepared by the profile control method simulates shearing of a pump, a pipeline and a stratum, the viscosity retention rate of the profile control system can still reach 92% or above, and the breakthrough pressure reaches 8-11 MPa. Therefore, the effects of high-permeability plugging and medium-low-permeability oil displacement are achieved.

The invention relates to the technical field of oilfield development, and discloses a composition with an oil displacement function, application of the composition and a thickened oil recovery method. The composition comprises a nano material, a surfactant and a polymer, wherein the surfactant is selected from at least one of fatty alcohol polyether sulfonate, fatty alcohol polyether sulfate, a gemini surfactant containing a sulfonic acid group, a glycoside compound, an alcohol amine compound and an amide compound containing a hydroxyl group; wherein the mass ratio of the nano material to the surfactant is (0.1-2): 1. The aqueous solution of the composition has the characteristics of high viscosity and low interfacial tension in indoor experiments and field application, and can reduce the average water content of high-calcium-magnesium oil reservoirs and improve the crude oil recovery rate, thereby greatly improving the oil quantity and benefits of low-yield and low-efficiency wells.

This invention discloses a method for reducing the viscosity of potato starch, belonging to the fields of enzyme engineering and biomodified starch technology. This invention provides a method for preparing macrocyclodextrin by reacting starch with 4-α-glycosyltransferase, which is then added to potato starch to provide a suitable substrate for subsequent starch processing. This application in starch processing offers a new approach and has great potential and application prospects.

The utility model belongs to the technical field of deep processing of coal tar, and particularly relates to a decrystallized anthracene oil production system which comprises a main decrystallized anthracene oil tank, and a main feeding pipe, a main discharging pipe and a main discharging pump which are arranged on the main decrystallized anthracene oil tank, the auxiliary feeding pipe, the auxiliary discharging pipe and the auxiliary discharging pump are arranged on the auxiliary anthracene removal tank; and the mixing tank is connected with outlets of the main feeding pipe and the auxiliary discharging pipe. Cooling, crystallizing and centrifugally separating anthracene oil extracted from the bottom of the tar rectifying tower to obtain decrystallized anthracene oil and crude anthracene; and removing anthracene, phenanthrene, carbazole and the like in the crude anthracene through subsequent refining to obtain heteroanthracene-removed oil. Generally, the viscosity of impurity-removed anthracene oil is large, the viscosity of de-crystallized anthracene oil is small, the impurity-removed anthracene oil and the de-crystallized anthracene oil are conveyed into a mixing tank through a main discharging pipe and an auxiliary discharging pipe respectively and mixed in the mixing tank, and the feeding amount of the impurity-removed anthracene oil and the feeding amount of the de-crystallized anthracene oil are adjusted by adjusting the flow of a main discharging pump and the flow of an auxiliary discharging pump, so that the viscosity of mixed liquid (mixed anthracene oil) in the mixing tank is adjusted; therefore, the viscosity requirements for different purposes can be met.

This invention discloses a food-grade alkali-free modified starch adhesive for corrugated paper lamination and its preparation method, belonging to the field of adhesive technology. The modified starch adhesive comprises, by weight, 150-250 parts starch, 250-350 parts water, 4-10 parts hydrogen peroxide, 1-5 parts defoamer, 5-10 parts preservative, and 150-200 parts modified ethylene-vinyl acetate copolymer emulsion; wherein the modified ethylene-vinyl acetate copolymer emulsion is prepared by blending cellulose aqueous solution, PVA, filler, and ethylene-vinyl acetate emulsion in a specific ratio. This invention does not use caustic soda or borax throughout the process; all raw materials are food-grade, and the finished product is weakly alkaline, meeting the requirements of GB4806.15-2024. Through synergistic oxidation modification and emulsion compounding, it significantly improves initial tack, bonding strength, and drying speed, resulting in a low scrap rate, good resistance to damp heat and freeze-thaw cycles, and is suitable for high-speed, room-temperature lamination production of food-grade and ordinary corrugated paper.

This utility model discloses a battery pack housing, a battery pack, and an electrical device. The battery pack housing includes a casing and a cover. The casing has a first connecting portion at its open end, and a magnetic field groove is provided on the first connecting portion. The inner and outer walls of the magnetic field groove have opposite magnetic poles facing each other. The magnetic field groove is configured with space for filling with a magnetic fluid and for accommodating a magnetically conductive sheet. The cover has a second connecting portion adapted to the first connecting portion at its connecting end. By providing a magnetic field groove on the first connecting portion, with the inner and outer walls of the groove having opposite magnetic poles facing each other, the battery pack housing allows for filling the magnetic field groove with a magnetic fluid during battery pack production and maintenance, achieving a seal through the magnetic fluid. The battery pack includes this battery pack housing, and the electrical device includes the aforementioned battery pack, achieving the same beneficial effects.

The application provides a heterocyclic quaternary acid and a preparation method and application thereof. The heterocyclic quaternary acid has a structure shown in formula I, wherein Y is selected from a substituted or unsubstituted heterocyclic group, R1 and R2 are independently selected from a linear or branched alkyl group with 1-6 carbon atoms or a substituted or unsubstituted aromatic ring. 10 The heterocyclic quaternary acid has the advantages of good biological compatibility and low toxicity due to the presence of an amide bond, and is suitable for synthesizing a low-toxicity plasticizer.

The present invention relates to a composition comprising certain triglycerides having a low content of cyclopropene-based fatty acid (CPFA) acyl groups and tocopherols, as well as the use of such a composition, especially in cosmetic applications, and a method of treating baobab oil.

This invention relates to the field of functional filtration materials technology, specifically to a gradient interlocking knitted-woven composite filter cloth. It comprises a woven dual-pore structure superoleophilic and oil-guiding surface layer, a knitted three-dimensional fluffy structure superoleophobic filter core layer, a conductive electret transition layer with a textured surface that eliminates static electricity and adsorbs fine oil mist, and a woven continuous microgroove structure superoleophobic and oil-draining bottom layer. These four layers are composited from top to bottom, forming an interlocking weave structure. The pore size of the filter core layer decreases gradually from top to bottom, while the pore size of the oil-draining bottom layer increases gradually from top to bottom. The overall pore size of the filter cloth first decreases gradually from top to bottom, then increases gradually. This filter cloth achieves graded and precise filtration through multi-layer composite structure and gradient pore size design. The interlocking weave structure enhances the overall structural stability, while also possessing multifunctional properties such as directional oil guidance and drainage, conductive electret antistatic properties, and more.

The invention is applicable to the technical field of electrochemical energy storage, and provides a mixed aqueous electrolyte containing long-chain fatty acid zinc salt and application thereof.The mixed aqueous electrolyte comprises a solvent and zinc salt, the solvent is a mixture of deionized water and a non-aqueous organic solvent, and the zinc salt comprises the long-chain fatty acid zinc salt and other zinc salt; the concentration of the long-chain fatty acid zinc salt is 0.5-2 mol / L, the concentration of the other zinc salt is 0-5 mol / L, and the structural formula of the long-chain fatty acid zinc salt is as follows: Zn (R-COO) 2; wherein R represents a hydrophobic long-carbon-chain organic group, and C is more than or equal to 6 and less than or equal to 30. Long-chain fatty acid zinc is introduced to serve as zinc salt to supplement the concentration of Zn < 2 + > and serve as an interface modifier due to the unique molecular structure (long hydrophobic carbon chain and hydrophilic carboxyl) of the long-chain fatty acid zinc.

This invention relates to the field of nanoprinting plate technology, and more particularly to a coating material for nanoprinting plates and its preparation method. The preparation method includes: feeding nanoparticles, film-forming resin, curing agent, dispersant, solvent, and dye into a high-speed disperser for pre-dispersion to form a first dispersion; obtaining the vibration value of the sleeve at the temperature sensor probe during the pre-dispersion process and determining the maximum and minimum speeds of the high-speed disperser; obtaining the drive current deviation value of the motor of the high-speed disperser and determining the reverse rotation time of the motor; grinding the dispersion to be ground, and calculating the hardness of the residual hard agglomerates based on the drive current deviation value and determining the outlet back pressure of the feed pump of the sand mill; completing the grinding process according to the outlet back pressure to obtain a grinding slurry; adding a leveling agent to the grinding slurry to obtain the finished coating material for nanoprinting plates. This invention improves the film-forming performance of the finished coating material for nanoprinting plates.

This invention relates to a GaAs-based flip-chip Mini LED and its fabrication method. The chip comprises, from bottom to top, a transparent substrate, a bonding layer, a P-current spreading layer, and a P-ohm layer. A mesa is disposed on the P-ohm layer. The mesa, from bottom to top, comprises a P-waveguide layer, a light-emitting layer, an N-waveguide layer, an N-current spreading layer, an N-buffer layer, and an N-ohm layer. A P-electrode is disposed on the P-ohm layer below the mesa; an N-electrode is disposed on the N-ohm layer above the mesa. Electrode pads are disposed directly above both the P-electrode and the N-electrode. By setting electrode pads, the soldering required in packaging production is combined with the electrode structure, eliminating the need for solder paste application on the substrate, thus achieving chip-substrate interconnection and facilitating modular production of the packaged chip. This effectively improves the problems of weak chip-substrate bonding strength, high coefficient of thermal expansion, cumbersome manufacturing, and high production costs in chip packaging.

The application provides a modified conductive carbon, a slurry, a positive electrode, a battery and a preparation method thereof, the modified conductive carbon, wherein 0.05wt%-0.1wt% of F elements are doped. Compared with unmodified conductive carbon, the modified conductive carbon has an open pore structure. The modified conductive carbon is prepared by fluorination treatment of graphene oxide with sodium 2,2,3,3-tetrafluoropropionate as a fluorine source and phosphoric acid immersion treatment. The application improves the problem of water introduction in the positive electrode slurry, can stabilize the viscosity of the positive electrode slurry in air, and improves the electrical properties such as the resistance, charge and discharge life of the battery, and improves the chemical stability of the positive electrode slurry of the sodium ion battery in air.

The application discloses a method for preparing biofuel by in-situ hydrogen-catalytic upgrading of sludge hydrothermal crude oil, and relates to the field of sludge resource treatment. The method for preparing biofuel by in-situ hydrogen-catalytic upgrading of sludge hydrothermal crude oil provided by the application adds long-chain alkane into the sludge hydrothermal crude oil to adjust the viscosity, so that the sludge hydrothermal crude oil can be fully mixed with liquid hydrogen-donor reagent and hydrogenation deoxidization upgrading reaction can be carried out. However, both the long-chain alkane and the liquid hydrogen-donor reagent can affect the viscosity of the biofuel obtained by upgrading the sludge hydrothermal crude oil and can affect the calorific value of the biofuel, so it is necessary to adjust the mass ratio between the sludge hydrothermal crude oil and the two reagents to be sludge hydrothermal crude oil: hydrogen-donor reagent: long-chain alkane = 1: (1-10): (1-20).

This invention relates to a metal ion crosslinking stabilizer. It primarily addresses the problems of existing gel profile control agents, such as short gelation time, easy damage to medium and low permeability layers during injection, and inability to achieve deep reservoir sealing. Its components and proportions by mass percentage are as follows: 1%-2% retarder, 3%-5% reinforcing agent, 1%-3% regulator, 4%-5% ion stabilizer, 1%-2% water purifier, and the balance being water. Preparation method: 1) Add the ion stabilizer and reinforcing agent to water according to the proportions and mix evenly in a 45°C water bath; 2) Add the regulator to the mixture and mix evenly; 3) Add the retarder and maintain the water bath for 2-3 hours; 4) Add the water purifier to obtain the target product. This metal ion crosslinking stabilizer can be used as an auxiliary additive component in the formulation of polyacrylamide ion crosslinking profile control agent systems. It can prolong the gelation time of the profile control agent, ensure the gel viscosity of the profile control agent, improve the stability of the profile control agent, and achieve effective sealing of the system.

The application relates to an ultra-low-loss large-effective-area optical fiber, which comprises, from inside to outside along the radial direction of the optical fiber, a core layer, a first gradient layer, an inner cladding layer, a second gradient layer, a sunken cladding layer, a third gradient layer, a transition cladding layer, a fourth gradient layer and an outer cladding layer; the core layer is chlorine-boron co-doped or chlorine-fluorine co-doped silica and is not doped with germanium; the first gradient layer, the inner cladding layer, the second gradient layer, the sunken cladding layer, the third gradient layer, the transition cladding layer and the fourth gradient layer are all fluorine-boron co-doped silica; and the outer cladding layer is pure silica. The application can solve the optical fiber attenuation problem caused by the viscosity imbalance of the existing optical fiber structure while having ultra-low loss and large effective area.

This invention provides a catalyst slurry for fuel cells and its preparation method, relating to the field of fuel cells. The catalyst slurry for fuel cells, by weight, comprises catalyst particles, perfluorosulfonic acid resin ionomer, ultrapure water, lower alcohol, and carbon powder. By employing porous carbon powder with specific properties, which interacts with the perfluorosulfonic acid resin ionomer, this invention can significantly improve the viscosity and stability of the catalyst slurry. Furthermore, the CCM formed after coating this catalyst slurry exhibits good performance and will not produce any adverse effects when in contact with the carbon in the microporous layer of the gas diffusion layer during fuel cell use.

The invention relates to the technical field of separation membranes, and discloses a polybenzimidazole hollow fiber membrane as well as a preparation method and application thereof, the preparation method comprises the following steps: (1) mixing polybenzimidazole and a protonic solvent, defoaming, and filtering to obtain a polybenzimidazole membrane casting solution; (2) extruding the polybenzimidazole membrane casting solution and the inner core solution into a non-solvent through a spinning nozzle to prepare a polybenzimidazole hollow fiber membrane precursor; and (3) washing the polybenzimidazole hollow fiber membrane precursor in an alkali solution and a washing solution in sequence, extracting and drying to obtain the polybenzimidazole hollow fiber membrane. The PBI hollow fiber membrane with the nano-porous structure, provided by the invention, has a relatively high separation coefficient and good mechanical properties.

This invention discloses a modified bentonite drilling mud, its preparation method, and its application, belonging to the technical field of drilling mud and geotechnical engineering materials. The modified bentonite drilling mud disclosed in this invention, by mass parts, comprises: 100 parts sodium-based bentonite, 0.5 parts anhydrous sodium carbonate, 1-5 parts gum arabic, 0.1-2 parts xanthan gum, and 1000 parts water. The modified bentonite drilling mud disclosed in this invention solves the technical problem that existing drilling muds are unable to simultaneously meet engineering performance requirements, be environmentally friendly, and possess good salt resistance.

A non-cured heat conductive silicone grease composition contains A component: non-cured silicone oil 100 parts by mass having a kinematic viscosity of 50 to 10,000 mm 2 / s at 40°C, and B component: heat conductive particles 105 to 500 parts by mass relative to 100 parts by mass of the A component. The heat conductive particles contain B1 component: amorphous alumina having a center particle diameter of 0.1 to 1 μm, and one part or all of the alumina is surface-treated 50 to 300 parts by mass, B2 component: plate-like boron nitride having a center particle diameter of 0.1 to 10 μm 5 to 50 parts by mass, and B3 component: agglomerated boron nitride having a center particle diameter of 20 to 70 μm 50 to 150 parts by mass, and are compounded in a ratio of B3 / B2 = 2 to 20. Thus, a heat conductive silicone grease composition having a relatively low specific gravity, although having a viscosity excellent in workability and coatability, and having high thermal conductivity is provided.