19results about How to "Improved rheological properties" patented technology

This invention discloses a black-based blue-spotted glaze with an earthworm-like pattern and its preparation method. The glaze consists of a body, a black base glaze, and a blue-spotted glaze from the inside out. The raw materials for the black base glaze are: feldspar, calcite, calcium borate, dolomite, talc, barium carbonate, quartz, bentonite, zirconium silicate, rutile, cobalt oxide, manganese oxide, and iron oxide. The raw materials for the blue-spotted glaze are: feldspar, limestone, alumina, talc, barium sulfate, Datong clay, zinc oxide, quartz, and titanium dioxide. The preparation method includes: 1. Wet ball milling the black base glaze raw materials to obtain a black base glaze slurry; 2. Wet ball milling the blue-spotted glaze raw materials to obtain a blue-spotted glaze slurry; 3. Bisque firing the body; 4. Applying the black base glaze slurry to the body and drying it; 5. Applying the blue-spotted glaze slurry to the body and drying it; 6. Oxidation firing and reduction firing of the body, followed by natural cooling to obtain the black-based blue-spotted glaze. The raw material formula of this invention is reasonable and environmentally friendly, which can improve the mechanical properties of the glaze; the preparation method is simple and the yield is high.

The invention relates to the technical field of cosmetic preparations, and discloses a composition containing succinyl glycan and application of the composition to regulation and control of the repetition distance of a liquid crystal lamellar phase, the composition comprises a liquid crystal component and an effective amount of succinyl glycan, wherein the stratified phase repetition distance of liquid crystals in the composition can be effectively adjusted by adding the succinyl glycan, and the thermal stability of the composition is improved; small-angle X-ray scattering (SAXS) proves that the addition of the succinyl glycan enables the repetition distance of the lamellar phase of the liquid crystal to generate a measurable change of 6.2% to 19.4%; the invention provides a novel method for accurately regulating and controlling the liquid crystal structure of the cosmetic from the nanoscale, and the obtained composition has better stability, moisture retention and skin feeling in use.

This invention belongs to the field of engines, specifically relating to a fuel supply structure and a solid-liquid hybrid rocket engine, including an oxygen-enriched propellant supply mechanism and a gel fuel supply mechanism. The oxygen-enriched propellant supply mechanism includes a coating column, which includes a coating sleeve with an opening facing the combustion chamber, and the coating sleeve is used to hold the oxygen-enriched propellant. The gel fuel supply mechanism includes a gel fuel supply device, an annular channel, and an atomizer arranged sequentially. The annular channel is arranged around the outer edge of the coating sleeve, with its downstream end protruding downstream of the coating sleeve. The atomizer is located at the end of the annular channel protruding downstream of the coating sleeve, and the annular channel and the coating sleeve together seal the upstream end of the combustion chamber. This invention's engine adopts a novel combination of gel fuel and oxygen-enriched propellant, combining some of the advantages of both to achieve the effects of increased specific impulse, adjustable thrust, and multiple starts.

This invention discloses a self-thickening, moisturizing, and oil-controlling gentle facial cleanser and its preparation method, belonging to the field of cosmetic technology. The raw materials are composed of the following percentages by weight: rhamnolipin 2%~8%, alkyl glycoside 5%~15%, cationic polymer 0.1%~1.5%, moisturizer 2%~6%, plant extract 0.5%~3%, pH adjuster (the amount needed to adjust the system pH to 5.0~7.0), preservative 0.1%~1.0%, and water as the balance. Through the ternary system of rhamnolipin-alkyl glycoside-cationic polymer, self-thickening and foam stability are achieved through electrostatic interaction and steric hindrance synergy, without relying on traditional thickeners such as carbomer. Simultaneously, it possesses excellent moisturizing and oil-controlling properties, with an oil removal rate ≥89%, a skin moisture content increase of ≥15% after 4 hours of use, and an oil secretion inhibition rate of ≥20% after 4 hours, with extremely low irritation. This invention solves the technical problem of low viscosity and poor foam performance in the rhamnolipin and alkyl glycoside compound system.

The application discloses a biomass gelatinous gel and a preparation method and application thereof, and the method comprises the following steps: dispersing anthraquinone small molecules and porous graphene in a sodium bicarbonate solution or a phosphate buffer solution to obtain a mixture; the mass ratio of the anthraquinone small molecules to the porous graphene is 1:0.14-7; the pH value of the mixture is 8-10; and the mixture is cooled after being ultrasonically treated at 30-70 DEG C to obtain the biomass gelatinous gel. The biomass gelatinous gel is prepared by self-assembly of anthraquinone small molecules and lignin-based porous graphene as main raw materials in a weak alkaline system through non-covalent interaction between molecules. The biomass gel is a room-temperature gelatinous gel, has good temperature responsiveness, and has excellent specific capacity, remarkable shear thinning characteristics, large shear strain, self-healing characteristics, non-frequency dependence and time stability through tests.

The application provides a UV white ink, a preparation method and an application process. The preparation raw material of the UV white ink includes, in terms of weight parts, 5-10 parts of resin, 30-40 parts of amide functional monomer, 25-40 parts of active diluent, 5-10 parts of photoinitiator, 10-25 parts of titanium-containing white paste, and 0.3-3 parts of additive. The resin provides a film-forming skeleton, guarantees the adhesion and scratch resistance of the ink layer; the amide functional monomer uses strong polar amide groups to build low-shrinkage crosslinking nodes, balances the hardness and internal stress, and improves the alcohol resistance; the active diluent adjusts the viscosity of the system and participates in photocuring, and gives the ink good standby anti-settling property. Through the synergistic effect of the components, the application realizes high hardness and excellent scratch resistance, and takes into account the strong adhesion, alcohol resistance and long-term storage stability of the substrate, and is especially suitable for the inkjet printing process of cylindrical curved surfaces such as vacuum cups.

The invention belongs to the technical field of silver paste for batteries, and relates to lignin modified low-temperature curing conductive silver paste as well as a preparation method and application thereof. The lignin modified low-temperature curing conductive silver paste comprises the following components in percentage by weight: 92-93% of silver powder; 3 to 3.1% of a resin composition; 0.28 to 0.32 percent of a curing agent; the balance is an organic reagent; the resin composition comprises the following components in percentage by weight: 2.1-2.3% of aliphatic epoxy resin; 0.25 to 0.4 percent of bisphenol F type epoxy resin; 0.5 to 0.6 percent of vinyl chloride-vinyl acetate resin; 0.08% to 0.18% of lignin; the lignin is alkali lignin. The lignin is added into the low-temperature curing conductive silver paste, so that the curing characteristic of the resin is improved, the dispersity of silver particles is enhanced, the conductivity and rheological property of the low-temperature curing conductive silver paste are improved, and the photoelectric conversion efficiency of a battery is improved.

The application discloses a kind of high density low rebound shotcrete and preparation method thereof, it is related to shotcrete field, and preparation method includes: (1), respectively to cementitious material, fine aggregate, coarse aggregate is using MAA model to be packed and the design ratio of each raw material in interior is obtained;(2), cementitious material, fine aggregate, coarse aggregate and the rebounding agent of design ratio obtained according to step (1) are fully mixed, water, water reducing agent is mixed, then by the way of mixing with pressurized air, incorporate accelerator, obtain high density low rebound shotcrete.The application uses early strength rebounding agent, improves the pumpability of shotcrete, accelerates the early hydration of concrete, under the joint action of alkali-free accelerator, rapidly improves the early mechanical properties of shotcrete, improves shotcrete construction efficiency.Multiple close packing is used, and cementitious material, fine aggregate, coarse aggregate respectively form close packing structure, effectively improve the plastic viscosity of paste and the compactness of concrete.

The invention discloses a preparation method and application of a probiotic-entrapped collagen composite nano-carrier. The preparation method is characterized by comprising the following steps: mixing a fish gelatin protein solution and a polysaccharide solution, adjusting the pH value to be alkaline, heating to carry out glycosylation reaction, and purifying to obtain glycosylated fish gelatin protein. Mixing and emulsifying the glycosylated fish gelatin protein solution serving as a water phase and the oil phase by adopting a reversed-phase emulsification method to form a W / O type emulsion; adding a probiotic bacterial suspension, uniformly stirring, adding a cross-linking agent, carrying out a cross-linking reaction, carrying out solid-liquid separation, washing, and drying, so as to obtain the probiotic-entrapped collagen composite nano-carrier; the preparation method has the advantages that precise and slow-release release in intestinal tracts is realized, and the survival rate and bioavailability of probiotics are remarkably improved.

This invention discloses a tungsten-copper electronic paste for medium-temperature co-fired ceramic substrates and its preparation method, belonging to the field of electronic pastes. By mass percentage, the paste consists of 80%–85% tungsten-copper powder, 5%–15% organic carrier, and 5%–10% binder phase. The preparation method includes: first preparing the organic carrier, then uniformly mixing the tungsten-copper powder and binder phase, followed by adding the organic carrier, and then thoroughly grinding and dispersing the mixture using a stirring and three-roll mill to obtain a uniform and stable tungsten-copper electronic paste. This invention, by optimizing the powder size and paste ratio, significantly reduces the sheet resistance of the conductive layer after sintering and improves conductivity while ensuring good co-firing compatibility with medium-temperature co-fired ceramics. The resulting paste exhibits excellent printability and rheological stability, with clear printed lines and a smooth surface. It shows no bubbling or delamination during sintering and is suitable for high-performance, high-reliability electronic packaging and substrate circuit manufacturing.

The invention discloses a method for modifying starch. According to the method, starch is physically modified by adopting a micro-nano bubble technology. The prepared modified starch is free of chemical component addition, safe and environmentally friendly, the microstructure, FTIR spectrum, crystallinity, expansibility, gelatinization temperature and other aspects are changed, the functional characteristics of the starch in food and non-food products are enhanced, and the application range of the starch is widened.

The compensation system comprises a spinning solution storage tank, a first pipeline, an adjusting storage tank and a second pipeline, the first pipeline is connected with the spinning solution storage tank and a spinning unit, the second pipeline is connected with the adjusting storage tank and the first pipeline, and the second pipeline is provided with a metering pump; the first pipeline is provided with a first viscometer; and the first viscometer is positioned at the downstream of the connection position of the first pipeline and the second pipeline. Through the synergistic effect of online detection and instant compensation, the viscosity abnormity caused by factors such as temperature fluctuation, solvent volatilization or polymerization degree change in the spinning process is effectively counteracted. The DMSO solvent can obviously improve the rheological property of the spinning solution, maintain the dynamic balance of the viscosity of the system and ensure that the spinning solution is kept stable in the extrusion process, so that the fiber forming quality and the spinning continuity are improved.

This invention discloses a low-carbon, high-density shotcrete admixture, its preparation method, and its application, relating to the field of concrete admixtures in building materials. The admixture comprises the following components by mass percentage: 53-73% rheological component, 15-25% thickening component, 10-18% early-strength component, and 0.5-4% setting regulator component. The rheological component includes manganese slag powder and silica fume, and the thickening component is tailings powder loaded with nano-modified cellulose ether. This invention increases the cohesiveness of shotcrete and improves the slurry encapsulation of concrete through the thickening component, increases the yield stress of concrete through the rheological component, and synergistically improves the adhesion and rapid hardening performance of the material after spraying by combining with the early-strength component, thereby reducing the rebound rate. Furthermore, the nanoparticles loaded on organic matter hydrate in the pores, directionally filling harmful pores, effectively improving the density and strength of shotcrete, achieving low-carbon, low-rebound, and high-density shotcrete.

This invention discloses a nano-modified composite grouting material suitable for deep, high-temperature geothermal environments and its preparation method, belonging to the field of geotechnical engineering technology. The raw materials for preparing this composite material include: cement, fly ash, cellulose nanofibers, Pluronic F-127 dispersant, calcium formate, tannic acid, borax, defoamer, and water; wherein the mass ratio of tannic acid, calcium formate, and borax is (0.15-0.25):(1.1-1.4):(0.1-0.2). This invention, through the compounding of specific admixtures, effectively overcomes the defects of traditional grouting materials, such as rapid setting at high temperatures and poor rheological properties. The resulting composite material exhibits low viscosity, long pumpability, and high early strength in high-temperature environments, significantly improving the reinforcement effect on deep, high-temperature rock masses and providing a high-performance, high-reliability grouting solution for deep underground engineering.

The invention belongs to the technical field of industrial wastewater treatment and solid waste recycling, discloses a raw coal washing slime water treatment rapid settling agent and a preparation method and application thereof, and particularly relates to treatment of difficult-to-settle slime water. The rapid settling agent is prepared by taking industrial solid waste purified phosphogypsum as a main body, and modifying and compounding the main body with specific dendritic polyamine cations, sulfate and chlorate through an optimized process; the product is solid powder, is cooperated with an anionic polyacrylamide flocculant during use, is capable of rapidly settling and clarifying, and is specially used for treating raw coal washing slime water which is highly emulsified and difficult to settle; according to the invention, the combination of specific dendritic polyamine cations, sulfate and chlorate is introduced into a phosphogypsum modification system to generate a special synergistic effect, so that the performance of the agent in the aspects of rapid demulsification, charge neutralization and netting bridging is remarkably improved; the method has the effects that the settling velocity of slime water is extremely high, the effluent turbidity is low, the bottom mud dehydration property is good, and meanwhile, bulk and high-value utilization of the phosphogypsum is realized.

The invention discloses a preparation method of salt-heat double-tolerant whey protein, which comprises the following steps: dispersing whey protein in water to obtain a solution A; the mass concentration of the protein in the solution A is 1-5%, and the pH is 7-9; performing ultrahigh pressure treatment on the solution A to obtain a solution B; the pressure of the ultrahigh pressure treatment is 300 to 600 MPa, and the time is 5 to 10 minutes; adjusting the pH value of the solution B to 4-5 to obtain a solution C; centrifuging the solution C, and recovering the precipitate; dispersing the precipitate in water, and adjusting the pH value to 6.0-7.0 to obtain a solution D; and drying the solution D to obtain the salt-heat double-tolerant whey protein. After being heated in a system containing NaCl or CaCl2, the salt-heat double-tolerant whey protein dispersion liquid (5%, w / w) still has good flowability. The salt-heat double-tolerant whey protein prepared by the invention can be used for preparing protein beverages or smokable gel rich in electrolyte.

This invention provides a method for preparing high-sphericity gold powder, relating to the field of nanomaterial preparation technology. The method involves sequentially adding a multi-ligand stabilizer solution and an acidic solution to a chloroauric acid solution, adjusting the pH of the reaction system to 4.0-5.0 to obtain solution A. Then, a dispersant solution is rapidly added to solution A for a first-stage mixing, followed by the rapid addition of a reducing agent solution for a second-stage mixing. Subsequently, a morphology-optimizing agent solution is added dropwise to the reaction system, and after sufficient reaction, the precipitate is collected to obtain high-sphericity gold powder. This invention achieves precise control of gold powder morphology through the competitive adsorption between ligands by adding a multi-ligand stabilizer to the chloroauric acid solution. Furthermore, the addition of an acidic solution to the chloroauric acid solution further consolidates the morphology control of the gold powder. The acidic pH of the solution after adjustment further slows down the reduction rate, resulting in better dispersibility and more uniform size of the gold powder.

The invention relates to the technical field of ore grinding, and particularly discloses a composite grinding aid for quartz ore grinding and a preparation method of the composite grinding aid. The phosphonic acid group in the molecular structure has specific extremely strong affinity to hard acid type metal impurities such as iron, titanium and aluminum exposed in quartz crystal microcracks; the methylallyl alcohol polyoxyethylene ether is used as a steric hindrance monomer, so that the quartz fine particles are further prevented from getting close to one another and being agglomerated again, and the flowability of ore pulp is remarkably improved; the acryloyl morpholine is used as a polarity adjusting monomer, a rigid morpholine ring structure in molecules of the acryloyl morpholine greatly enhances the stability of a polymer main chain, layering and precipitation phenomena of the grinding aid in ore pulp are avoided, meanwhile, the viscosity of a system can be adjusted, abnormal fluidity of the ore pulp caused by an overlong polyether chain is avoided, and the stability of the grinding aid effect is ensured.

The invention discloses a toughening particle for interlayer toughening of a composite material and a synthesis method of the toughening particle. The toughening particles are modified thermoplastic resin nylon particles with core-shell structures; in the core-shell structure, the core is thermoplastic resin nylon 6 particles, the shell is a coating formed by in-situ polymerization of polydopamine on the surfaces of the nylon particles, and the coating is formed by interface interaction with groups on the surfaces of the nylon particles. The preparation process is simple and convenient, the obtained toughening particles achieve synergistic improvement of interlayer toughness and matrix strength of a composite material, improve the dispersity of nylon particles in resin, can adapt to various resin matrixes, and solve the problems that a traditional nylon toughening agent is attenuated in strength, prone to agglomeration and narrow in adaptability after toughening, and the toughening effect is good. The low-cost and high-quality production of the composite material is facilitated.