2354 results about "SURFACTANT BLEND" patented technology

The invention relates to a method for preparing a lithium iron phosphate / carbon composite material of a lithium ion battery, which belongs to the technical field of lithium ion batteries. The method for preparing the lithium iron phosphate / carbon composite material of the lithium ion battery comprises the following steps of: 1) preparing a suspending graphene-dispersed aqueous solution system, namely, crushing graphite to 1 to 5 microns, adding the crushed graphite into distilled water or purified water, adding 0.1 to 5 percent of surfactant, heating with stirring the mixed solution to 180 to 250 DEG C in a sealing way, performing stirring for 2 to 6 hours and reducing the temperature; 2) crushing lithium iron phosphate to the particle size of 1 to 5 microns, adding the crushed lithium iron phosphate into the distilled water or the purified water, adding with stirring 0.01 to 1 percent of coupling agent, performing uniform stirring, adding the graphene-dispersed aqueous solution, and performing stirring and filtration; and 3) vacuum-drying solid powder obtained by the filtration, and calcinating the dried solid powder for 2 to 12 hours to obtain the graphene-coated lithium iron phosphate cathode material. The method has the advantages of simple process, high material performance, high conductivity, high bulk density, high compacted density and the like.

The present invention discloses a water-based emulsion of PHA, PBAT and PVOH and its application in paper-based barrier coatings. This emulsion is prepared by first melt-blending PHA and PBAT at 150-170 °C and then dispersing them into an aqueous PVOH solution at 80-95 °C. Plasticizers, cross-linking agents and surfactants can be added to improve the performance. After coating on paper and drying at 80-150 °C, a barrier film with a Cobb value of 10-15 g / m² and a Kit ≥ 10 grade is formed. Compared with traditional PE film laminating or fluorine-containing coatings, this system is more environmentally friendly and recyclable; PVOH dissolves in pulping water, PHA and PBAT are easily separated, and fibers can be efficiently recovered; in composting, soil and marine environments, PHA and PBAT have extensive biodegradability and are superior to PLA which is difficult to recycle and requires industrial composting. It is applicable to food, industrial, special packaging and agricultural paper products.

A boron-containing polyethylene glycol fatty acid ester surfactant belongs to the field of organic chemistry and functional materials. The boron-containing polyethylene glycol fatty acid ester surfactant is prepared as follows: polyethylene glycol (PEG), boric acid and fatty acid are used as raw materials, first esterification reaction of the PEG and the boric acid is performed, then esterification reaction of the PEG and the fatty acid is performed to obtain boron-containing poly ethylene glycol fatty acid ester; by changing the species of fatty acids and catalysts and molecular weight of the PEG, the esterification rate can be enhanced, the boron-containing poly ethylene glycol fatty acid ester product can be used as a surfactant, and the boron-containing poly ethylene glycol fatty acid ester can reduce water surface tension and has good emulsifying properties.

The invention discloses a foam base fluid, a preparation method and a preparation method of a temperature-resistant and salt-resistant CO2 foam flooding system.The foam base fluid comprises a foaming agent, a foam stabilizer and water, the foaming agent is a betaine type surfactant, and the foam stabilizer is a biological polysaccharide polymer. A temperature-resistant and salt-resistant foam base solution and a biological polysaccharide reinforced CO2 foam oil displacement system are obtained by introducing a biological polysaccharide polymer as a foam stabilizer and combining with a betaine type surfactant, so that the problem that the viscosity of polyacrylamide as a traditional foam stabilizer is reduced and even fails in a high-temperature and high-salt environment is effectively solved; the stability of CO2 foam can be obviously improved. Meanwhile, the biological polysaccharide polymer has the characteristics of environmental friendliness and degradability, and can effectively reduce the negative influence on the environment. In addition, due to rich resources and low price of the biological polysaccharide, the system is competitive in cost, and the economic benefit of the oil field can be further improved.

The present invention relates to the construction of a high-yield indigo genetic engineering strain and a fermentation method. The present invention uses Escherichia coli as a starting strain, knocks out at least one of the yddG gene, trpR gene, tyrA gene or pheA gene in the host cell; integrates the tryptophanase gene tnaA and / or the flavin monooxygenase gene MaFMO on the genome; integrates one or more genes related to biofilm modification on the genome, and obtains the optimal engineering strain by comparing the fermentation yield; then transfers a plasmid into the strain to further strengthen the tryptophanase gene tnaA and the flavin monooxygenase gene MaFMO; finally, the yield is significantly increased by supplementing carbon sources and substrates and adding surfactants. The present invention provides an indigo-producing genetic engineering strain and a fermentation method with good stability and high synthesis efficiency, providing a reference for the subsequent development of more advantageous engineering strains.

The invention provides a production process optimization method of a surfactant, and relates to the technical field of surfactants, and the production process optimization method comprises the following steps: collecting historical production data of the surfactant; constructing a production process prediction model; performing performance prediction on the initial process parameters, and comparing the initial process parameters with a target performance value; when the predicted performance difference value is larger than a preset performance difference threshold value, technological parameter optimization is executed; producing a surfactant sample by adopting the optimized process parameters, obtaining an actual performance value of the sample, and comparing the actual performance value with a target performance value; when the sample performance difference value is smaller than or equal to a preset performance difference threshold value, the optimized process parameters serve as execution process parameters for machining. By means of the method and device, the technical problem that in the prior art, due to the fact that the influence of technological parameter changes on the product performance is large, the production efficiency of the surfactant is low can be solved, the prediction model is constructed through historical data, the technological parameters are optimized, and the production efficiency and the product quality of the surfactant are improved.

The invention relates to the technical field of stirring tanks, and particularly discloses a chemical stirring tank which comprises a base and a stirring tank fixedly mounted at the top of the base and composed of a lower tank body and an upper tank body, and a driving motor is fixedly mounted at the top of the upper tank body; a stirring preparation defoaming unit, a material pressing type intermittent dispersion discharging unit and a multi-step collision centrifugal defoaming unit are arranged in the stirring tank, through the multi-step collision design, an adhesive continuously collides with a plurality of collision steps from top to bottom under the continuous action of centrifugal force, large and small bubbles in the adhesive can be rapidly broken through continuous collision, and the adhesive can be uniformly dispersed. The continuous collision defoaming effect is further achieved, even small bubbles or bubbles which are not prone to being broken due to the fact that a surfactant is contained can be broken in the continuous collision process, the influence of the size and viscosity of the bubbles in the adhesive and the stability of the bubbles on the defoaming effect is avoided, and the defoaming effect is greatly improved.

The invention discloses a multilevel-structure phenolic resin material, a multilevel-structure carbon material and a preparation method, and the preparation method comprises the following steps: (1) mixing a mixture containing a surfactant, a cosurfactant, an organic solvent and water to obtain spherical emulsion droplets; and (2) adding a phenolic resin precursor and ammonia water into the spherical emulsion liquid drops, reacting, centrifuging, washing with alcohol, and drying to obtain the phenolic resin material with the multilevel structure. According to the preparation method, spherical emulsion droplets are used as soft templates, the phenolic resin material with the multilevel structure is synthesized in a one-pot liquid phase through multilevel sequential dynamic assembly on a water-oil interface, and the derivative carbon material subjected to heat treatment also maintains the original multilevel structure and morphology, is good in dispersity and has an adjustable polyhedral structure, an adjustable opening degree and an adjustable pore size.

The invention discloses a soluble alkaline salt scale inhibitor and a preparation method thereof, and belongs to the technical field of oilfield chemistry. The soluble alkaline salt scale inhibitor is prepared from amphiphilic modified graphene oxide, a surfactant, inorganic salt and deionized water, the amphiphilic modified graphene oxide contains a large amount of carboxyl groups, sulfonic acid groups, hydroxyl groups and the like, and has good metal ion chelating property; meanwhile, through the hydrophobic association effect and hydrogen-bond interaction between modified graphene grafted long carbon chains, the bonding probability between sodium ions of the soluble saline-alkali salt and bicarbonate radicals, carbonate radicals and chloride ions is further weakened, and through the synergistic effect of the amphiphilic modified graphene oxide, the surfactant and the inorganic salt, the salt scale inhibition effect is further improved; the method is especially suitable for soluble alkali salt water quality conditions of high temperature, high alkali and high salinity, can solve the problems of oilfield water injection, fracturing flowback strata and wellbore salt deposition, and has a good popularization prospect.

The invention discloses a preparation method of a composite sodium iron phosphate positive electrode material with high compaction density, which is characterized by comprising the following steps: (1) mixing a sodium source, an iron source, a phosphorus source, a carbon source and the like for preparing the composite sodium iron phosphate positive electrode material in proportion to obtain a precursor aqueous solution; (2) adding a surfactant into the precursor aqueous solution, grinding and uniformly mixing to obtain a homogeneous precursor aqueous solution; (3) carrying out drying granulation on the homogeneous precursor aqueous solution by using a spray drying technology to obtain composite sodium ferric phosphate precursor particles; and (4) performing high-temperature heat treatment on the composite sodium ferric phosphate precursor particles under the protection of inert gas to obtain the composite sodium ferric phosphate positive electrode material. The sodium-ion battery positive electrode material and the electrode plate with high compaction density can be obtained, the reversible specific capacity of the sodium-ion battery is improved, the problem of low gram capacity exertion is solved, the battery capacity is improved, and high-quality sodium-ion battery supply is provided for the field of energy storage.

The invention relates to the technical field of CO2 miscible-phase oil displacement, in particular to an ester gas-soluble surfactant for reducing CO2 miscible-phase pressure and a preparation method and application thereof.The ester gas-soluble surfactant is prepared from polyglycerol fatty acid ester and acetic anhydride, the ester gas-soluble surfactant contains unsaturated hydrocarbon chains with the carbon atom number being 8-18, and the unsaturated hydrocarbon chains are connected with the polyglycerol fatty acid ester. N is the polymerization degree of the polyglycerol fatty acid ester, n is any integer in the range of 2-22, and the ester gas-soluble surfactant has the solubility of 0.5 wt%-1.5 wt% in supercritical carbon dioxide. When the ester gas-soluble surfactant provided by the invention is used, other auxiliaries do not need to be added, and a good mixing reduction effect can be achieved aiming at different crude oils by adjusting the number of carbon dioxide-philic groups and the length of oleophylic unsaturated hydrocarbon chains.

The invention relates to the technical field of petrochemical engineering, and particularly discloses a preparation method of a high-sulfur and high-acid crude oil demulsifier, which comprises the following steps: uniformly mixing 40-60 parts by mass of modified polyether, 25-30 parts by mass of zwitterionic surfactant and 10-12 parts by mass of solvent, heating to 50-70 DEG C, reacting for 1-2 hours, and cooling to room temperature to obtain the high-sulfur and high-acid crude oil demulsifier. Adding 3-8 parts by mass of activated aluminum oxide, 8-16 parts by mass of an antacid and 2-4 parts by mass of a corrosion inhibitor, uniformly mixing, adding 0.5-1 part by mass of a defoaming agent, uniformly mixing, cooling, and standing for layering to obtain a demulsifier; the antacid comprises ethanolamine and zinc oxide. The demulsifier prepared by the invention not only has excellent performance in the aspects of dehydration and promotion of oil-water separation, but also can improve the quality of crude oil and reduce the acid value and the sulfur content to a certain extent.

The invention discloses a coal seam chemical outburst elimination method based on molecular dynamics, which belongs to the field of coal mine safety, and comprises the following steps: sampling and analyzing to obtain the element proportion, group composition and chemical bond connection mode of a coal sample, constructing a real coal molecular skeleton, and reducing and optimizing the molecular structure of coal by molecular simulation; the method comprises the following steps: adding a surfactant, setting the real gas content, gas pressure and environment temperature of a coal seam, establishing a micro model after the surfactant is injected into the coal seam, simulating the occurrence state and reaction process of methane molecules in the coal seam under the action of the surfactant, and determining the methane content in the coal seam by combining the migration characteristics of the methane molecules and the energy change of the system. And the concentration of the injected surfactant is optimized, so that the engineering application of large-range industrial water injection outburst elimination of the coal seam is developed. According to the method, through molecular simulation, the complex occurrence characteristics of the coal seam are considered, the concentration of the injected surface active agent is optimized, and the hydraulic measure efficiency is improved.

The invention provides a collagen freeze-dried product and a preparation method thereof, and belongs to the technical field of biology. In the formula design, through the synergistic effect of the arginine (salt) and the surfactant, denaturation and aggregation of the collagen freeze-dried product in the production process and the storage period are inhibited, the stability of the product is improved, and the prepared collagen freeze-dried product is high in activity, purity and safety. In the freeze-drying process, pre-freezing parameters are optimized, and the nucleation effect of ice crystals in the freezing process of the collagen mixed solution is controlled by regulating and controlling parameters such as temperature and vacuum degree in the freeze-drying process, so that the shapes and the sizes of the crystals in the collagen freeze-dried product are more uniform, the drying time is shortened, and the production efficiency is improved. And the collagen freeze-dried product with uniform pore diameter and excellent appearance is obtained, and the uniformity and stability of batch and inter-batch products are improved.

The invention discloses a carbon ceramic composite conductive microsphere, a ceramic resistor and a preparation method, and belongs to the technical field of production of special materials of electrical equipment, and the method comprises the following steps: sequentially dipping porous mullite in a precursor solution of carbon and slurry containing carbon black, and carrying out drying treatment and carbon burying sintering to obtain the carbon ceramic composite conductive microsphere; the preparation method comprises the following steps: preparing a ceramic raw material, performing vacuum-assisted centrifugal impregnation on the ceramic raw material and slurry consisting of a binder in pug consisting of the ceramic raw material and a surfactant, sequentially performing drying and glue discharging treatment, primary isostatic pressing forming and air pressure sintering, cooling to room temperature, and performing mechanical treatment and electrode spraying to obtain the ceramic resistor. Impregnation improves the dispersibility and uniformity of the carbon material in the porous mullite to form a continuous conductive path, the carbon black-containing slurry improves the conductivity of the ceramic resistor, carbon-buried sintering generates in-situ carbon with abundant types, the combination of carbon and a ceramic interface is promoted, and the oxidation resistance, mechanical properties and electrical properties of the ceramic resistor are improved.

The invention provides a preparation method and application of a polystyrene resin-based spherical carbonaceous porous material, and belongs to the technical field of new energy materials. The method comprises the following steps: firstly, pre-mixing styrene with a cross-linking agent, a pore-forming agent, an initiator and a surfactant at a first preset temperature, then continuously stirring at a first preset stirring speed at a second preset temperature for a first preset time, and carrying out organic polymerization to prepare a polystyrene-based resin microsphere emulsion; then separating and drying the emulsion to obtain polystyrene-based resin microspheres; then oxidizing for a second preset time at a third preset temperature in an air atmosphere to prepare oxidized polystyrene-based resin microspheres; and finally, oxidizing at a fourth preset temperature for a third preset time to prepare the polystyrene resin-based spherical carbonaceous porous material. The method is simple in process and easy to implement, the preparation cost is effectively reduced while the yield is increased, and the method has wide application value and popularization prospects.

The invention discloses a method for preparing recombinant collagen antioxidant microspheres without a cross-linking agent. The method comprises the following steps: 1, dissolving recombinant collagen and chitosan in deionized water containing glacial acetic acid to serve as a water phase; petroleum ether containing a surfactant is used as an oil phase; 2, injecting the oil phase into the water phase, emulsifying and stirring through a homogenizer, and reducing the temperature of the system to obtain an emulsion; 3, a fixing agent, water and absolute ethyl alcohol are blended and precooled, and fixing liquid is obtained; 4, adding the stationary liquid into the emulsified liquid for curing, and washing the cured microspheres; and 5, transferring into a tannic acid aqueous solution to soak, then washing with deionized water, and freeze-drying to obtain the recombinant collagen microspheres with uniform size. The recombinant collagen microspheres prepared by the method have good dispersity and uniform and controllable size, avoid the toxicity problem of a cross-linking agent, can be applied to the fields of medical instruments, tissue engineering, drug delivery and the like as a filling agent, and have wide commercial application prospects.

The invention relates to a high-utilization-rate RAP asphalt regenerant and a preparation method thereof. The regenerant comprises the following components in percentage by mass: 30%-50% of a petroleum-based softener, 10%-20% of biomass oil, 5%-15% of a polymer modifier, 1%-5% of a surfactant, 0.5%-2% of an antioxidant and 2%-10% of a functional additive. All the components have a synergistic effect, so that the asphalt modifier can effectively permeate aged asphalt, supplement light oil, reduce viscosity, recover flexibility and remarkably improve high-temperature rut resistance and low-temperature crack resistance of regenerated asphalt. By reasonably selecting the raw materials and proportioning, the production cost is reduced, the RAP utilization rate is improved, and the environment-friendly raw materials are adopted, so that the requirements of environmental regulations are met. The result of the embodiment shows that after the regenerant is added, the performance recovery of the aged asphalt is good, the viscosity of the regenerated asphalt mixture is moderate, the needle penetration recovery rate is high, the softening point is high, the ductility is large, the comprehensive performance is excellent, and the regenerant is superior to commercially available products.

The invention discloses a water-based soldering flux for a photovoltaic N-type battery 0BB assembly and a preparation method of the water-based soldering flux, and belongs to the technical field of soldering flux. The soldering flux is prepared from the following raw materials in parts by weight: 30-60 parts of deionized water, 30-50 parts of an alcohol solvent, 2-8 parts of a high-boiling-point solvent, 1-4 parts of organic acid, 0.1-1 part of a surfactant, 0.1-1 part of an antioxidant, 0.1-1 part of a corrosion inhibitor, 0-1 part of psicose and 0-1 part of trimethylolpropane tricaprylate. According to the invention, the problem of negative influence on tension of thermosetting adhesive and alloying of a fine grid when a traditional soldering flux is applied to a photovoltaic N-type battery 0BB assembly is solved.

The invention relates to the technical field of batteries, in particular to a gel electrolyte prepolymerization solution, a lithium battery and a preparation method of the lithium battery. The gel electrolyte prepolymerization liquid comprises the following components: an electrolyte which accounts for 70%-99% of the total mass of the gel electrolyte prepolymerization liquid; the cross-linking monomer accounts for 1%-10% of the total mass of the gel electrolyte prepolymerization liquid; an initiator accounting for 0.3-5% of the total mass of the crosslinking monomer; the fluorocarbon surfactant accounts for 0.01%-5% of the total mass of the gel electrolyte prepolymerization liquid, the fluorocarbon surfactant comprises a perfluoroalkyl chain CnF2n + 1, and n is larger than or equal to 6. According to the invention, the fluorocarbon surfactant is introduced into the gel electrolyte pre-polymerization liquid, so that the electrode / electrolyte interface composition and structure are improved, the wettability is improved, the interface stability is improved, the loss of the electrolyte is inhibited, the accumulation of by-products of the positive electrode under high voltage and in the circulation of the negative electrode is reduced, and the cycle life and the stability of the battery are remarkably improved.

The invention relates to the field of scavengers, in particular to a copper-based urea crystal scavenger for a vehicle and a preparation method of the copper-based urea crystal scavenger. The automotive copper-based urea crystal scavenger provided by the invention is prepared from the following raw materials: a copper-based catalyst, a surfactant, a foaming agent, a dispersing agent, a reducing pigment and deionized water, wherein the copper-based catalyst comprises copper acetate, the surfactant comprises AEO-10 and MOA-3PK, and the reducing pigment comprises methylene blue; the prepared automotive copper-based urea crystal scavenger is convenient to use, excellent in urea crystal melting effect and short in effective mileage, the environmental protection property of automobile running can be obviously improved after the automotive copper-based urea crystal scavenger is used, and meanwhile the effect of reducing the use cost of an automobile is remarkable.

The invention relates to the technical field of preparation of manganous-manganic oxide, in particular to a production and preparation process of a manganous-manganic oxide material for batteries, which comprises the following steps: dissolving high-purity manganese sulfate to prepare a manganese sulfate solution, and adding a dispersing agent and a surfactant to obtain a manganese salt solution; the method comprises the following steps: adding a base solution into a reaction kettle, stirring and heating, conveying a manganese salt solution and ammonia water, synchronously introducing oxygen, dividing the whole oxidation reaction process into two stages, controlling the flow velocity of the ammonia water in different stages, and dynamically adjusting the temperature; and carrying out suspension precipitation on manganous-manganic oxide obtained by the oxidation reaction, aging, and carrying out dehydration suction filtration, washing and drying to obtain the manganous-manganic oxide material for the battery. The invention aims to adjust the morphology of the manganous-manganic oxide finished product by controlling reaction conditions, effectively reduce the granularity of the product and enhance the uniformity of particle size distribution.

The invention belongs to the technical field of scattered metal recovery, and particularly relates to a recycling method of tungsten-rhenium alloy waste. The tungsten-rhenium alloy is a solid solution strengthened alloy which takes tungsten element as a matrix and consists of the tungsten element and rhenium element, and has the characteristics of high melting point, high strength and high hardness. As the price is high, it is very necessary to comprehensively utilize the tungsten-rhenium alloy waste. The invention discloses a recycling method of tungsten-rhenium alloy waste. Firstly, tungsten-rhenium alloy waste is cleaned, dried and smashed, and waste powder is formed; then dispersing the waste material powder into water dissolved with ammonium metatungstate and a surfactant; then, carrying out spray drying to form mixed powder; and finally, the mixed powder is subjected to roasting and hydrogen reduction, and tungsten-rhenium alloy powder with the metal rhenium content lower than the metal rhenium content in the tungsten-rhenium alloy waste is formed. Compared with an existing tungsten-rhenium alloy waste recycling method, the recycling method has the advantages of being simple in process, low in energy consumption, small in loss and good in uniformity.

The invention discloses a post-raining side slope seepage characteristic testing method based on waveform inversion of nano-iron concentration distribution, and belongs to the field of seepage characteristic determination in foundation pit side slope stability monitoring, the method comprises the following steps: spraying a mixture of nano-iron particles and a surfactant into cumulonimbus to make nano-iron permeate into a side slope soil body along with rainfall; a radio frequency coil is arranged in the orthogonal direction of the selected section of the slope, an electromagnetic field is applied to excite nano iron resonance, and electromagnetic wave signals are collected; dividing the selected section of the slope into a plurality of grid units, and inverting the concentration distribution of the nano-iron in each grid unit by using an iterative optimization algorithm based on the electromagnetic wave signal to obtain an inversion result; and generating a seepage cloud picture based on the inversion result and calculating the seepage speed. According to the method, economic loss caused by large-area laying of nano-iron and interference to follow-up monitoring are avoided, the seepage position and size are determined, and complete and clear information is provided for monitoring seepage changes in slope engineering.

The invention discloses a microemulsion interfacial tension efficient prediction method and system based on active learning and molecular dynamics. According to the method, 217 molecular descriptors corresponding to each molecular structure are calculated by adopting an RDKit software package, and the descriptors are used for representing molecular structure characteristics and serve as input variables of a machine learning model, so that key structure information including molecular branching degree, polarity and the like is transmitted. For an oil-water-surfactant ternary interface system, the oil-water interfacial tension in the presence of a surfactant is simulated and calculated through molecular dynamics, and an IFT value is set as a model prediction target. An active learning mechanism is introduced, and iterative sample labeling in the molecular dynamics simulation process is guided; and integrating the obtained IFT data with the molecular descriptor features, constructing a machine learning data set, and training a random forest model. According to the method, the problem of screening a high-performance surfactant layer by a middle-phase microemulsion system can be solved, and the ultra-low oil-water interfacial tension can be rapidly and efficiently screened.

The present application relates to the technical field of daily chemical cleaning products, and discloses a kind of wormwood leaf, enzyme laundry detergent, including the following components, by weight percentage: wormwood leaf enzyme: 30-50wt%, environmental protection enzyme: 10-20wt%, composite surfactant: 5-10wt%, including fatty alcohol polyoxyethylene ether sulfate and alkyl glycoside, wherein fatty alcohol polyoxyethylene ether sulfate accounts for 60-80wt% of the total amount of composite surfactant, and alkyl glycoside accounts for 20-40wt% of the total amount of composite surfactant; Dispersant: 0.3-1wt%; Enzyme-surfactant composite catalyst: 1-5wt%. The present invention adopts the technical scheme of combining wormwood leaf enzyme with environmental protection enzyme, extracts active enzyme and natural functional ingredients by fermentation, and realizes efficient decomposition of organic stains such as grease and protein. Compared with the scheme of using only chemical surfactant in the prior art, the problem of environmental pollution and skin irritation of chemical detergent is solved, and the safety and environmental protection of washing are significantly improved.

The invention relates to the field of lithium battery diaphragms, and particularly discloses an aramid diaphragm for a lithium battery and a preparation method of the aramid diaphragm. The aramid diaphragm for the lithium battery comprises aramid slurry and a base membrane, the aramid slurry is coated on two sides of the base membrane to form an aramid coating, and the aramid slurry is prepared from the following raw materials in parts by weight: 20-40 parts of aramid polymer liquid, 5-10 parts of tencel fibrillation slurry, 1-3 parts of titanium aluminum lithium phosphate nanoparticles, 3-5 parts of nano ceramic particles and 8-15 parts of solvent; the aramid polymer liquid is prepared from the following raw materials in parts by weight: 1 to 3 parts of p-phenylenediamine, 60 to 80 parts of polar solvent, 5 to 10 parts of paraphthaloyl chloride, 1 to 3 parts of 3, 4 '-diaminodiphenyl ether, 1 to 3 parts of o-chloro-p-phenylenediamine and 0.5 to 1 part of polyether surfactant; the aramid polymer liquid is combined with the nano ceramic particles and the tencel fibrillation slurry component to form an intercommunicated porous three-dimensional network structure, so that the air permeability, the thermal stability and the porosity of the aramid diaphragm are improved.

The invention discloses a high-efficiency fluorite collecting agent and a preparation method thereof. The high-efficiency fluorite collecting agent comprises the following raw materials in parts by weight: 20-45 parts of oleic acid with different iodine values, 5-10 parts of an amidate surfactant, 3-5 parts of inorganic alkali or organic alkali and 10-25 parts of a low-carbon-chain alcohol compound. The amidate surfactant is a nonionic surfactant, the structural general formula of the amidate surfactant is R1-C (O) NH (CH2) nCH2-R2, in the formula, R1 is a hydrocarbon chain containing 12-18 carbon atoms, n is equal to 5-6, and in the formula, R2 is a functional group with a hydrogen bond effect. According to the fluorite collecting agent, the efficient recovery rate of fluorite is guaranteed, meanwhile, the grade of fluorite concentrate is improved to a certain degree, the using amount of the collecting agent is reduced, and the problem that the fatty acid fluorite collecting agent is poor in fluorite concentration efficiency is solved.

The invention discloses antibacterial polypeptide and application thereof in preparation of pet shower gel, and belongs to the technical field of antibacterial polypeptide. The antibacterial polypeptide is prepared from the following raw materials in parts by weight: 2 to 5 parts of glycerol, 3 to 5 parts of plant polypeptide, 20 to 40 parts of sorbitol, 1 to 2 parts of sodium carboxymethyl cellulose, 0.5 to 1 part of xanthan gum, 2 to 5 parts of sodium methyl hydroxybenzoate, 0.5 to 1 part of a surfactant, 0.5 to 1 part of chlorhexidine, 0.05 to 0.3 part of triclosan and 100 parts of deionized water. The antibacterial polypeptide prepared by the invention can be applied to the preparation process of pet shower gel, and has good antibacterial performance.

The invention relates to the technical field of microsphere materials, in particular to microspheres and derivatives thereof, including phenolic resin-based hollow mesoporous carbon materials (hollow mesoporous carbon microspheres) and core-shell silicon dioxide microspheres as well as a preparation method and application thereof. The preparation method of the microspheres comprises the step of reacting resorcinol and aldehyde in a solvent in the absence of a surfactant in a system by taking ammonia water as a basic catalyst, when the molar ratio of the reaction amount of the aldehyde to the resorcinol is (0.5-1): 1, adding tetraethyl silicate to obtain microspheres; and carbonizing the microspheres and removing the silicon dioxide to obtain the phenolic aldehyde-based hollow mesoporous carbon microspheres. The preparation method provided by the invention can be used for preparing the hollow large mesoporous carbon microspheres under the reaction condition of no surfactant.