30results about How to "Avoid aggregation and sedimentation" patented technology

The invention relates to a preparation method for high-alkaline calcium naphthenate. In the method, calcium hydroxide and calcium oxide are taken as calcifying agents, pure water is replaced by alkaline aqueous solution, and a mode of multiple addition is adopted to prepare a calcium naphthenate product with the base number of more than or equal to 350 mgKOH / g. The product has the advantages of low viscosity and turbidity and better high temperature cleanliness.

The invention discloses a novel phase-change material composition. The novel phase-change material composition mainly comprises carbon nanotubes, graphene, fumed silica, metal or metal oxide particles and a phase-change material. The carbon nanotubes, graphene and metal or metal oxide particles can further accelerate heat transmission. The phase-change material is used for improving a hot end initial temperature absorption rate. The fumed silica has effects of precipitation prevention and thickening and can prevent graphene and particle aggregation settlement after heat absorption liquefaction of the phase-change material. The carbon nanotubes, graphene and metal or metal oxides can finally form a full 3D network comprising particles (metal or metal oxides), wires (carbon nanotubes) and planes (graphene) in the fluid (of phase-change material subjected to heat absorption melting). The novel phase-change material composition has high heat conductivity and low thermal resistance value, has high specific heat capacity, greatly improves phase-change material heat absorption, heat storage and heat radiation efficiency and has a high practical value.

The invention relates to a preparation method of a nanometer zirconia heat barrier coating which is mixed with rare-earth oxide and used for liquid-phase plasma spraying. The method comprises that precursor sol is used as a spraying raw material, atomized into fine liquid drops under atomized gas pressure, sent into plasma flame flow and sprayed and deposited on a matrix to obtain the nanometer zirconia heat barrier coating. The precursor sol is hydroxid precursor sol. According to weight proportion, the raw material includes 63 to 73 percent of ZrOCl2.8H2O and 27 to 37 percent of crystalline-state stabilizer oxide which is rare earth oxide. The invention can overcome the problems of poor sol distribution, poor sol flowing performance, chlorid ion erosion, poor sol granule atomizing effect, uneven granule sizes, and the like in the the traditional liquid-phase plasma spraying process. In the invention, a composite coating is prepared, and has the advantages of high depositing efficiency, low cost, wide spraying material, strong adaptability of the liquid-phase precursor, low heat conductivity, good heat and shock resistance, and the like.

The invention discloses a microbial strain organic fertilizer for improving soil alkalinity. The strain in the organic fertilizer can produce alkali under different fermentation conditions, and can be used against a soil acidification problem of over-farmed soil. Bacillus can survive and grow under stresses, can provide various enzymes for soil, and assists in improving soil microbial diversity. An alkali-producing bacillus is screened and is applied in acidic soil, and crop rhizosphere micro-ecology of the acidic soil can be tuned and optimized. Soil urease activity can be improved, such that an excellent liquid microbial fertilizer is provided for the growth of crops such as Indian lettuce and lettuce in the acidic soil. With the organic fertilizer prepared with the strain HNPY23, leaf tissue chlorophyll content, leaf Vc content and yield of the crops such as Indian lettuce and lettuce can be substantially improved. With the fertilizer, both quality and yield can be improved.

The invention discloses a kitchen fume purifying aqueous solvent and a preparation method thereof. The kitchen fume purifying aqueous solvent comprises the following raw materials: sodium dodecyl benzene sulfonate, fatty alcohol polyoxyethylene ether sulfate, nonylphenol polyoxyethylene ether-10, isopropanol, triethanolamine, sodium silicate, sodium citrate, polypropylene dialkyl ammonium chloride, carboxymethyl cellulose fiber, fumed silica and water, wherein the mass ratio of the polypropylene dialkyl ammonium chloride to the carboxymethyl cellulose fiber to the fumed silica is (6-10):(2-4):(0.6-1); and the kitchen fume purifying aqueous solvent is prepared by grading and mixing the raw materials. Compared with the prior art, the product has the advantages that the maximal oil dirt adsorption quantity and the secondary oil dirt adsorption quantity are further increased.

The invention discloses a liquid expanding agent capable of expanding step by step and a preparation method thereof. The liquid expanding agent is prepared by the following steps: 1, weighing a nano magnesium oxide powder mixture, butanol, span-80 and water, and stirring at a constant temperature of 30-40 DEG C for 1 hour; 2, heating to 50-70 DEG C, sequentially adding polypropylene glycol 400, dimethicone and a shrinkage reducing component, and stirring for 1-2 hours; and 3, adding polyacrylamide, stirring for 1-2 hours, curing at constant temperature for 1 hour, and cooling to room temperature to obtain the liquid expanding agent capable of expanding step by step. An expansion component in the liquid expanding agent is formed by grinding, modifying and mixing magnesium oxide fired at different temperatures of 700 DEG C, 900 DEG C and 1100 DEG C, the magnesium oxide powder is mixed and ground to a nanometer level, the hydration time of the three magnesium oxide powder prepared at different firing temperatures is different, and the step-by-step expansion effect is achieved; by compounding with the shrinkage reducing component and the like, the volume expansion of concrete can be remarkably improved, the concrete volume shrinkage is reduced, and the crack resistance and impermeability of concrete are improved.

The invention discloses a microbial organic fertilizer capable of improving acidity of soil. Strains contained in the organic fertilizer disclosed by the invention can produce acid under different fermentation conditions, so that compared with inorganic salts, the organic fertilizer has the advantages that acid production is lasting, frequent applying is not required, the problems of soil caking and the like caused by anion enrichment do not occur, and meanwhile, a micro-ecological environment for root growth of alkaline soil crops can be optimized; the strain are derived from poor soil, i.e., corn rhizosphere soil, so that the tolerance of crops such as lactuca sativa, corn and the like to alkaline soil can be obviously promoted, the activity of urease of the soil can be improved, and an excellent liquid bacterial fertilizer can be provided for the growth of the crops such as lactuca sativa, corn and the like in the alkaline soil; and the organic fertilizer prepared from the strains can be used for obviously increasing the chlorophyll content of leaf tissue of the crops such as lactuca sativa, corn and the like, the Vc content of leaves of the crops such as lactuca sativa, corn and the like and the yield of the crops such as lactuca sativa, corn and the like, thereby having the good effect of improving quality and increasing yield.

A method of manufacturing a dispersion liquid includes preparing a mixed liquid which contains a first solvent, a second solvent having solubility which is equal to or less than 1% with respect to the first solvent, and a compound having a polymerizable functional group; and microcapsulating and dispersing the first solvent or the second solvent by performing liquid plasma treatment on the mixed liquid while applying ultrasonic waves to the mixed liquid by using an ultrasonic wave generating apparatus.

The invention discloses a stabilizer and an application thereof, and SBS modified asphalt and a preparation method thereof. The stabilizer is prepared by a method comprising the following steps: carrying out an esterification reaction on a styrene-maleic anhydride copolymer and long-chain alcohol under the action of acid catalysis to obtain the stabilizer. The stabilizer disclosed by the inventioncan stably adsorb and act on polystyrene chains and asphaltene macromolecules of SBS; by utilizing the long-chain alkyl, the agglomeration of SBS and the aggregation and sedimentation of asphaltene in the heat storage process can be prevented, and the dispersion effect of light components in the asphalt on the SBS and the asphaltene can be enhanced, so that the SBS modified asphalt has long-termheat storage stability.

The invention discloses a method for stabilizing a liquid photosynthetic bacterium living bacterium preparation. A nontoxic, harmless and residual-free polymeric organic medium difficultly utilized byphotosynthetic bacteria is added into a photosynthetic bacterium suspension to prepare the photosynthetic bacterium liquid living bacterium preparation, and the concentration of the polymeric organicmedium is 3.0 to 6.0 g / L. The preparation can be stored in a 4-30 DEG C dark environment for at least 12 months, the appearance color of the liquid preparation has no obvious change, the preparationhas uniform properties, has no obvious liquid preparation bacterium sedimentation stratification phenomenon, and still has high biological activity, and the ability to remove nitrite nitrogen is maintained at 80% or above. The stored living bacterium preparation is miscible with water, and can be easily dispersed in water without obvious bacterial agglomerates. The preparation method of the preparation is disclosed in details, and a new use of xanthan gum and other media in the production of photosynthetic bacterium products is also developed. The method has the advantages of simplicity in operation, low cost, and easiness in large-scale operation.

The invention discloses an amphiphilic polyamine high-molecular polymerization type viscose cotton blending leveling agent and a preparation method thereof. The amphiphilic polyamine high-molecular polymerization type viscose cotton blending leveling agent is prepared from the following components: a copolymer of acryloylethylenediamine and acryloylethylenediamine succinic acid, a polycondensate of the acryloylethylenediamine succinic acid and ethylenediamine, a solvent and deionized water. According to the amphiphilic polyamine high-molecular polymerization type viscose cotton blending leveling agent and the preparation method thereof, a series of amphiphilic ionic polymers and polyamide compounds are synthesized, no waste gas is generated in the synthesis process, and the purpose of level dyeing is achieved through solubilizing and retarding dyeing of the dye; and meanwhile, the leveling agent is almost non-irritant to organisms and is easy to biodegrade.

The liquid ejection apparatus includes: a recording head which includes a nozzle and an ejection device, the ejection device ejecting an ejection liquid through the nozzle by applying pressure to the ejection liquid in the recording head; a liquid accommodation unit which is in connection with the recording head and which accommodates a gas, the ejection liquid to be supplied to the recording head, and a non-volatile liquid having a permeability to the gas lower than the ejection liquid, the ejection liquid being separated from the gas by the non-volatile liquid; and a pressure control unit which controls pressure of the ejection liquid in the liquid accommodation unit by moving the gas into and out of the liquid accommodation unit.

The invention discloses a novel pneumatic type Nostoc alga raceway pond cultivation system. The system comprises a raceway pond, an aerodynamic system, a hanging type diversion system, and a light source strengthening unit; the raceway pond comprises a main raceway pond, a U type separator plate which is fixed at the bottom of the main body raceway pond, a sheet shaped separator plate which is arranged at the opening part of the U type separator plate, so that an S type circulated raceway is formed in the main body raceway pond; the aerodynamic system comprises an air pump, a gas head which isarranged in an L type flow deflector corner, and a gas pipe whose double ends are respectively connected to an air pump and the gas head; the hanging type diversion system comprises a detachable support which is installed on the main body raceway pond for adjusting a vertical height, and an L type flow deflector which is installed below the support for adjusting the vertical height; the L type flow deflector can be accommodated in the S type circulated raceway, and an L type corner of the L type flow deflector is connected by a hinge; the light source strengthening unit comprises a light emitting unit which is arranged on the main body raceway pond wall. The raceway pond cultivation system can be used for cultivating Pogostemon auricularius, Nostoc commune and other Nostoc alga with highefficiency, high quality and large scale.

The invention discloses a liquid expansion agent with a high expansion rate and a preparation method thereof. The expansion agent is prepared by the following steps: Step 1: weighing the expansion component modified by oil, butanol, simethicone oil, and Span 80 and water were stirred at a constant temperature of 40-50°C for 0.5-1h; Step 2: Raise the temperature to 70-80°C, add polypropylene alcohol 400 and shrinkage reducing components in turn, and continue stirring for 1-2h; Step 3: Add cationic poly Acrylamide, stirred for 2 hours, matured at constant temperature for 1 hour, and then cooled to room temperature to obtain a high-expansion liquid expansion agent. The liquid expansion agent of the present invention is mainly used for high-grade concrete and concrete that needs to compensate for shrinkage. The expansion component is composed of calcium sulfoaluminate clinker, anhydrous aluminum sulfate and anhydrous gypsum, and the hydration rate of the expansion component can be effectively controlled. Significantly increase the volume expansion of concrete, reduce the volume shrinkage of concrete, and improve the anti-crack and impermeability of concrete.

The invention relates to a silibinin nano suspension, a lyophilized preparation thereof and a preparation method, the silibinin nano suspension comprises silibinin, a stabilizing agent and water, the mass ratio of the silibinin to the stabilizing agent is (1-10): 1, and the lyophilized preparation is a lyophilized preparation of the silibinin nano suspension and a lyophilized preparation of the silibinin nano suspension. The stabilizer is a composition of a polyethylene caprolactam-polyvinyl acetate-polyethylene glycol grafted copolymer and lauryl sodium sulfate, and the mass ratio of the polyethylene caprolactam-polyvinyl acetate-polyethylene glycol grafted copolymer to the lauryl sodium sulfate is (1-5): (1-5). According to the silibinin nano suspension and the preparation method thereof, the particle size of the nano drug is optimized by adjusting the composition of the stabilizer, the preparation method and parameters, and the dissolution rate and the bioavailability of the insoluble bulk drug silibinin are remarkably improved through the finally prepared silibinin nano suspension.

The invention discloses a nano liquid disperse dye with high washing fastness as well as a preparation method and application thereof, and belongs to the field of textile chemical industry. The nano liquid disperse dye with high washing fastness is prepared from the following components in percentage by mass: 10 to 60 percent of disperse dye, 4 to 16 percent of macromolecular anionic dispersant, 0.1 to 8 percent of traditional anionic dispersant, 0.1 to 5 percent of humectant, 0.05 to 1 percent of defoaming agent, 0.02 to 4 percent of thickening agent, 0.02 to 0.2 percent of preservative and the balance of water, wherein the polymeric dispersant is an anionic dispersant and comprises one or more of an alkylphenol polyoxyethylene ether anionic surfactant, a modified styrene polyoxyethylene ether anionic surfactant and a polycarboxylic acid hyperdispersant. The nano liquid disperse dye with high washing fastness provided by the invention avoids the problems of spray drying and chemical material dust pollution of conventional powdery commercialization, has high washing fastness, and is a novel functional dye processing mode.

The invention discloses a lithium ion battery positive electrode slurry and its preparation method and application. A viscosity reducer is introduced into the positive electrode slurry, and the viscosity reducer can be adsorbed on the surface of lithium iron phosphate active material to effectively regulate the surface space of lithium iron phosphate nanoparticles. The steric hindrance and Zeta potential prevent the aggregation and settlement of the lithium iron phosphate active material, thereby suppressing the viscosity rebound and even the gel problem of the positive electrode slurry after standing still. The present invention pre-dries the lithium iron phosphate active material and the first conductive agent Adding a viscosity reducer can effectively regulate the steric hindrance and Zeta potential of the surface of lithium iron phosphate nanoparticles, prevent the aggregation and sedimentation of lithium iron phosphate active materials, thereby inhibiting the viscosity rebound and even gel problems of the positive electrode slurry after standing, and the iron phosphate The pre-dry mixing of the lithium active material and the first conductive agent can form a structure in which the carbon black uniformly covers the active material, which is beneficial to the conductivity of the positive lithium iron phosphate, reduces internal resistance, and improves electrochemical performance.

The invention provides a preparation method of a quantum dot light emitting diode, which comprises the following steps of providing a bottom electrode substrate, and forming a first nano column structure on the surface of a bottom electrode of the bottom electrode substrate, and combining quantum dots containing initial ligands on the surface of the first nano column structure, and carrying out ligand exchange on the quantum dots of which the surfaces are combined with the initial ligands by adopting target ligands to prepare the quantum dot film combined with the target ligands. According to the preparation method of the quantum dot light emitting diode provided by the invention, the quantum dot film with good dispersibility and charge injection and transmission capability can be obtained.

The invention provides a method for preparing a quantum dot light-emitting diode, comprising the following steps: providing a bottom electrode substrate, forming a first nanocolumn structure on the surface of the bottom electrode of the bottom electrode substrate; For the quantum dots containing the initial ligands, the target ligands are used to carry out ligand exchange on the quantum dots bound with the initial ligands on the surface, so as to prepare the quantum dot films bound with the target ligands. The preparation method of the quantum dot light-emitting diode provided by the invention can obtain the quantum dot thin film with good dispersibility and charge injection and transport ability.

The invention relates to a method for rapidly obtaining and purifying bone marrow stroma stem cells. The method comprises the following steps: re-suspending bone marrow stroma cells (P0) obtained from a bone marrow cavity by using an anticoagulant-containing serum-free cell culture fluid; culturing a suspension of the obtained P0 cells by using a serum-containing culture solution, and obtaining a first generation of bone marrow stroma stem cells (P1) by using a composite collagenase differential digestion method; carrying out double-fluorescence discrimination on stem cell surface CD-marking and non-stem cell surface CD-marking by using a flow cytometer to rapidly increase the proportion of bone marrow stem cells; culturing by using the serum-containing culture solution again; and finally, obtaining a second generation of bone marrow stroma stem cells (P2) with high purity by using the composite collagenase differential digestion method again. The method has the benefits that the bone marrow stroma cells (P0) obtained from the bone marrow cavity are re-suspended by employing an anticoagulant-containing serum-free culture medium alpha-MEM so as to prevent hematopoietic cells from aggregating and precipitating at the bottom of a culture dish and from interfering wall-attaching of the bone marrow stroma stem cells.

The invention discloses a high-expansion-rate liquid expanding agent and a preparation method thereof. The preparation method comprises the following steps: 1, weighing a grease-modified expanding component, butanol, dimethyl silicone oil, span 80 and water, and perforing stirring at a constant temperature of 40-50 DEG C for 0.5-1 h; 2, heating the obtained mixture to 70-80 DEG C, sequentially adding polypropylene glycol 400 and a shrinkage reducing component, and continuously performing stirring for 1-2 h; and 3, adding cationic polyacrylamide, performing stirring for 2 h, curing the obtainedmixture at constant temperature for 1 h, and cooling the cured mixture to room temperature to obtain the high-expansion-rate liquid expanding agent. The liquid expanding agent is mainly used for high-grade concrete and concrete with a shrinkage compensation requirement; and the expansion component is obtained by compounding calcium sulphoaluminate clinker, anhydrous aluminum sulfate and anhydrousgypsum, so that the hydration rate of the expansion component is effectively controlled, the volume expansion of the concrete can be remarkably improved, the volume shrinkage of the concrete is reduced, and the crack resistance and impermeability of the concrete are improved.

The invention relates to a non-ligand-assisted perovskite doped multi-emission material and a preparation method thereof. The preparation method of the perovskite doped material comprises the following steps: 1) dissolving a polymer in an organic solvent to obtain a first solution containing the polymer; 2) adding halide salt into the first solution, and uniformly conducting mixing to obtain a second solution; and 3) performing vacuum drying on the second solution to obtain a perovskite doped material. The halide salt in the step 2) is a composition of a main body inorganic halide salt A and a doped halide salt and a main body inorganic halide salt B, or is a composition of a main body inorganic halide salt A and a doped halide salt and an organic amine halide salt. The invention also discloses the perovskite doped material obtained by the method. The preparation method is simple, low in cost and suitable for large-area production, the crystallinity of the material is good, the dispersity of nano-particles is good, and double-band emission is effectively achieved.

The present invention relates to a traditional Chinese medicine composite thermosensitive gel embolic agent, a preparation method and application thereof. α (HIF‑1 α ), a mixed oil phase of tributyrin and ethyl oleate, a surfactant, a co-surfactant and water, and the Chinese medicine polysaccharide composite temperature-sensitive material is N -The hydrogel material obtained by the polymerization of isopropylacrylamide in the traditional Chinese medicine polysaccharide solution. The traditional Chinese medicine compound thermosensitive gel embolizing agent of the present invention can significantly enhance the embolic effect of the embolizing agent on the end of liver cancer blood vessels, promote the thrombus formation at the embolization site, and induce M1-type polarization and HIF-1 of tumor-associated macrophages (TAMs) by inducing α Its expression remodels the tumor immune microenvironment, improves the efficacy of interventional therapy for liver cancer, and reduces the risk of recurrence.

The liquid ejection apparatus includes: a recording head which includes a nozzle and an ejection device, the ejection device ejecting an ejection liquid through the nozzle by applying pressure to the ejection liquid in the recording head; a liquid accommodation unit which is in connection with the recording head and which accommodates a gas, the ejection liquid to be supplied to the recording head, and a non-volatile liquid having a permeability to the gas lower than the ejection liquid, the ejection liquid being separated from the gas by the non-volatile liquid; and a pressure control unit which controls pressure of the ejection liquid in the liquid accommodation unit by moving the gas into and out of the liquid accommodation unit.

According to the mineral inorganic quick-setting double-liquid grouting reinforcement material, nano silicon dioxide is added, higher pozzolanic activity is achieved, the microstructure of a cement-based material is improved by consuming C-H in a hydration product and generating more C-S-H, microdefects are reduced, and therefore the mechanical property and durability of the material are improved; most of hydration products can only grow on the surfaces of cement particles. The nano-material is high in activity, the surface of the nano-material can provide additional nucleation points for growth of hydration products and promote multi-point growth of the hydration products, the breaking strength and compressive strength of the concrete can be improved by adding the superfine limestone, and the effect of improving the early strength of the concrete is remarkable. In the early stage of grouting, the high-strength magnetic field is applied, so that aggregation and sedimentation of nano-particles can be prevented, nano-silicon dioxide can be injected into fine cracks more easily, collapse caused by sinking of stone bodies on the upper portion is prevented, and the anti-permeability and the water plugging effect are also improved.

The invention relates to a traditional Chinese medicine composite temperature-sensitive gel embolization agent, and a preparation method and application thereof. The traditional Chinese medicine composite temperature-sensitive gel embolization agent comprises a traditional Chinese medicine polysaccharide composite temperature-sensitive material, superparamagnetic iron oxide nanoparticles, a traditional Chinese medicine component for inhibiting the expression of hypoxia-inducible factor-1 alpha (HIF-1 alpha), a mixed oil phase of triglyceride and ethyl oleate, a surfactant, a cosurfactant and water, wherein the traditional Chinese medicine polysaccharide composite temperature-sensitive material is a hydrogel material obtained by carrying out polymerization reaction on N-isopropylacrylamide in a traditional Chinese medicine polysaccharide solution. The traditional Chinese medicine composite temperature-sensitive gel embolism agent can significantly enhance the liver cancer vascular terminal embolism effect of the embolism agent, promote thrombosis of embolism parts, remodel a tumor immune microenvironment by inducing M1 type polarization of tumor-related macrophages (TAMs) and expression of HIF-1alpha, improve the curative effect of liver cancer interventional therapy and reduce the recurrence risk.