450 results about "Sodium triphosphate" patented technology

The invention relates to a mulberry leaf flavone microcapsule as well as a preparation method and application thereof, and belongs to the technical field of microcapsule drug loading. The preparation method of the mulberry leaf flavone microcapsule comprises the following steps: S1, adding mulberry leaf flavone into a chitosan solution, carrying out ultrasonic treatment, shearing by using a homogenizer, and heating and stirring to obtain a mixed solution; s2, slowly dropwise adding a sodium tripolyphosphate solution into the mixed solution, reacting and curing until the solution becomes milk white liquid from clear and no precipitate is generated, then centrifuging and washing, and collecting particles; and S3, freezing the particles, and performing freeze drying to obtain the mulberry leaf flavone microcapsules. The mulberry leaf flavone microcapsule provided by the invention can be used for developing a novel medicinal preparation in the field of medicines, and can relieve disease symptoms and delay disease progression through the antioxidant and anti-inflammatory characteristics of the mulberry leaf flavone microcapsule; in the field of food, the method can be applied to development of functional food, for example, the method can be added into beverages and health-care products to provide health benefits of antioxidation, blood fat reduction and the like for consumers.

The invention belongs to the field of nano preparations, and discloses a preparation method of nano microspheres coated with a nicotinamide mononucleotide shell membrane structure, which comprises the following steps: coating NMN in a pregel formed by chitosan and sodium tripolyphosphate, heating and stirring, adjusting the pH value to separate out chitosan-coated nano microspheres, drying to remove moisture on the surfaces of the nano microspheres, and drying to obtain the nano microspheres coated with the nicotinamide mononucleotide shell membrane structure. Then selecting a water phase and an oil phase in a proper proportion, preparing a chitosan / sodium alginate composite nano-microsphere with sodium alginate as an outer membrane by adopting an emulsion cross-linking method, and washing and drying to obtain the NMN nano-microsphere with a core-shell structure. According to the invention, NMN is coated in the nano-microsphere which is composed of two materials and has a nuclear membrane structure, so that the stability of NMN in a natural environment can be improved, hydrolysis of NMN by gastric acid and gastrointestinal tract enzyme in a drug delivery process can be prevented, the bioavailability of NMN is improved, and a drug sustained release effect is achieved.

The invention belongs to the field of fermentation, and particularly relates to a complex microbial inoculant, original cheese, processed cheese with a blood sugar reducing function and preparation and application of the complex microbial inoculant. Wherein the processed cheese is prepared by the method comprising the following steps: mixing the components including raw cheese, sugarcane juice, corn oil, casein, concentrated milk protein, blueberry powder, mono / diglycerol fatty acid ester, sodium citrate, sodium tripolyphosphate, sodium hexametaphosphate, salt guar gum, potassium sorbate and water, and then emulsifying to obtain the processed cheese, the sugar cane juice, the corn oil, the casein, the concentrated milk protein, the blueberry powder, the mono / diglycerol fatty acid ester, the sodium citrate, the sodium tripolyphosphate, the sodium hexametaphosphate, the salt guar gum, the potassium sorbate and the water, the original cheese is prepared from a complex microbial inoculant, and the complex microbial inoculant comprises lactococcus lactis bacterial powder, lactococcus lactis subsp. Lactis bacterial powder, lactobacillus delbrueckii subsp. Lactis bacterial powder, lactobacillus plantarum bacterial powder and lactobacillus paracasei bacterial powder. The processed cheese provided by the invention has a better function of controlling blood sugar, and meanwhile, the processed cheese is fine and uniform in texture and has good smearing performance.

The invention relates to the technical field of refractory materials, in particular to a waste magnesia-calcium brick-containing refractory material and a preparation method thereof, and the waste magnesia-calcium brick-containing refractory material comprises the following components: composite aggregate, calcium aluminate cement, urea resin-aluminum dihydrogen phosphate, active alpha-Al2O3 micro powder, silica micro powder and sodium tripolyphosphate. In the room-temperature spraying maintenance and low-temperature working stage, hydration of free CaO in the waste magnesia-calcium bricks and erosion of OH <-> are prevented through the hydrophobic effect of fluorinated polyphosphazene and modified zirconium oxide sol, and the compatibility and wettability of the composite aggregate and cement paste are improved through carboxylic acid groups of carboxyethyl silanetriol and polyethylene glycol monomethyl ether. According to the present invention, with the temperature rising, the aluminum dihydrogen phosphate forms the viscous liquid phase to wrap the aggregate so as to provide the temporary protection, the temperature continues to rise, the zirconium oxide and the nanometer Al2O3 react with the CaO and the MgO to generate the CaZrO3 and the MgAl2O3, the aluminum dihydrogen phosphate reacts with the nanometer Al2O3 in the system to generate the AlPO4, and the CaZrO3, the MgAl2O3 and the AlPO4 form the multi-phase fire-resistant structure so as to further improve the fire resistance of the fire-resistant material;

The invention relates to the technical field of glazes, and discloses a high-performance ceramic glaze for bacteriostatic domestic porcelain and a preparation method thereof. The high-performance ceramic glaze of the antibacterial domestic porcelain is prepared from the following raw materials in parts by weight: 5 to 15 parts of albite, 20 to 30 parts of potassium feldspar, 10 to 30 parts of kaolin, 13 to 26 parts of quartz, 0.3 to 7 parts of talc, 5 to 10 parts of limestone, 2 to 5 parts of ludwigite, 0.5 to 1 part of rare earth, 2 to 5 parts of honeysuckle-loaded CuS, 1 to 3 parts of modified polysiloxane, 0.1 to 0.5 part of sodium tripolyphosphate and 0.1 to 0.3 part of carboxymethyl cellulose. The high-performance ceramic glaze for the antibacterial domestic porcelain prepared by the invention has relatively good long-acting antibacterial performance and high strength.

The invention relates to the technical field of functional materials, in particular to a chitosan nanocapsule as well as a preparation method and application thereof. The preparation method of the chitosan nanocapsule comprises the following steps: (a) mixing and emulsifying a chitosan solution, an oil-in-water emulsifier and essential oil to form an oil-in-water emulsion, adding an aqueous solution of sodium tripolyphosphate into the oil-in-water emulsion, and stirring to obtain a first mixture; (b) adding the first mixture into an oil phase solvent containing a water-in-oil emulsifier, and stirring to obtain a multiple emulsion; and (c) adding an aqueous solution of a dialdehyde cross-linking agent into the multiple emulsion, carrying out a cross-linking reaction, collecting a solid-phase substance, and drying. The physical / chemical double-crosslinking chitosan nanocapsule is obtained by utilizing physical crosslinking between the chitosan and the sodium tripolyphosphate and chemical crosslinking between the chitosan and the binary aldehyde crosslinking agent, so that the encapsulation efficiency and the encapsulation efficiency of the nanocapsule are remarkably improved; meanwhile, the nanocapsule also has pH responsiveness and has a slow release effect after pH response.

The invention belongs to the technical field of bioengineering medicines, and particularly relates to a gel dressing for repairing skin wounds and a preparation method of the gel dressing. The anti-fouling coating is prepared from the following raw materials in parts by weight: 65 to 75 parts of polyvinyl alcohol, 14 to 20 parts of sodium alginate, 4 to 8 parts of sodium carboxymethyl cellulose, 1 to 3 parts of sodium hyaluronate, 12 to 22 parts of glycerol, 1 to 3 parts of surface anti-fouling additive, 6 to 10 parts of antibacterial microcapsule and 2 to 2.8 parts of compound ion. According to the invention, a PVA freeze-thaw physical network and an alginic acid Ca / Zn composite ion network cooperate to limit a pore channel, so that stable forming is realized; a chitosan / sodium tripolyphosphate microcapsule is prepared from polyhexamethylene biguanide hydrochloride and covered with sodium alginate, release sensitive to pH / ionic strength, acceleration in an inflammation stage and self-limiting in a later stage are constructed, and long-acting bacteriostasis is formed by SA-Zn site slow release; the stability and staged adaptation are highlighted through processes such as encapsulation, low-shear doping and the like and raw material synergy.

The invention discloses a fluoride-salt-free and nitrate-free cast iron enamel zirconium white glaze as well as a preparation method and application thereof, and belongs to the technical field of enamel. The zirconium white glaze is prepared from quartz, borax pentahydrate, magnesium carbonate, potassium carbonate, potassium feldspar, zinc oxide, aluminum hydroxide, calcium carbonate, zirconium silicate, sodium tripolyphosphate and lithium carbonate according to a specific mass ratio. The preparation method comprises the steps of raw material mixing, high-temperature melting under a pure oxygen condition, wiredrawing detection, quenching and the like. The zirconium white glaze is completely free of fluoride salt and nitrate, the problems of fluoride emission and environmental protection equipment blockage are avoided from the source, the fluorine content of the product is not detected through detection, the product meets the requirements of European Union REACH regulations, and meanwhile, the zirconium white glaze has good porcelain surface, luster and firing adaptability, is suitable for cast iron matrixes, has the firing temperature of 740-760 DEG C and the firing time of 87-87 hours, and can be widely applied to cast iron substrates. The method can be used for producing green and environment-friendly enamel products.

The present invention provides a preparation method of high-viscosity hydroxypropyl methylcellulose. A preparation method of high-viscosity hydroxypropyl methylcellulose comprises the following steps: grinding and alkalizing refined cotton cellulose; adding methyl chloride and propylene oxide for etherification reaction; successively adding a crosslinking agent and an aqueous fulvic acid solution for reaction; adding potassium naphthylacetate, sodium sulfite and sodium molybdate and then drying. In the present invention, during the etherification reaction of alkalized cellulose, a crosslinking agent prepared by mixing sodium tetraborate and sodium tripolyphosphate is added for crosslinking reaction, which can reduce the content of water-soluble groups of the prepared hydroxypropyl methylcellulose, achieving the effect of increasing the viscosity of hydroxypropyl methylcellulose. Coating the crop surface with the high-viscosity hydroxypropyl methylcellulose not only has a better surface glazing effect, but also can increase its sugar content.

The invention discloses fluoride-salt-free and nitrate-free low-temperature pearlescent glaze for steel plate enamel as well as a preparation method and application of the pearlescent glaze, and belongs to the technical field of enamel. The pearlescent glaze is prepared from quartz, anhydrous borax, titanium dioxide, magnesium carbonate, sodium tripolyphosphate, potassium carbonate, lithium carbonate, potassium feldspar, zinc oxide and V-26 according to a specific mass ratio. The preparation method comprises the steps of raw material mixing, high-temperature melting under a pure oxygen condition, wiredrawing detection, quenching and the like. The pearlescent glaze is completely free of fluoride salt and nitrate, the problems of fluoride emission and environmental protection equipment blockage are avoided from the source, the fluorine content of the product is not detected through detection, the product meets the requirements of European Union REACH regulations, meanwhile, the pearlescent glaze has good porcelain surface, luster and low-temperature firing adaptability, is suitable for a steel plate matrix, has the firing temperature of 760-800 DEG C and the firing time of 10-20 minutes, and is suitable for a steel plate. The method can be used for producing green and environment-friendly enamel products.

The invention relates to a high-thermal-conductivity and high-strength aluminum oxide-molten salt phase change composite material and a preparation method thereof. According to the technical scheme, the preparation method comprises the following steps: mixing sintered aluminum oxide, activated aluminum oxide and silica powder to obtain a mixture; adding polyacrylamide, sodium tripolyphosphate and deionized water into the mixture, and carrying out ball milling to obtain ceramic slurry; adding a nonionic foaming agent into the ceramic slurry, and stirring to obtain foamed slurry; adding aluminum citrate into the foamed slurry, stirring, drying in a mold, and demolding to obtain an aluminum oxide porous skeleton blank; then heating to 1450-1600 DEG C, and preserving heat to obtain an aluminum oxide porous framework; and burying the alumina porous skeleton in a fused salt-containing corundum crucible, heating the corundum crucible to 10-50 DEG C higher than the melting point of the fused salt, preserving heat, and naturally cooling to obtain the high-thermal-conductivity and high-strength alumina-fused salt phase change composite material. The preparation method is simple in process, low in cost and high in safety, and the prepared product is high in compression strength, good in heat-conducting property, large in energy storage density and excellent in stability.

The invention provides a chitosan-iron nanoparticle leaf surface resistance and control agent as well as a preparation method and application thereof, and belongs to the technical field of reduction of heavy metal pollution of crops. The preparation method comprises the following steps: dissolving chitosan in an organic solvent to obtain a chitosan solution, mixing the chitosan solution with ferrous sulfate, adding a sodium tripolyphosphate solution for crosslinking and stirring to obtain a solution containing precipitates, centrifuging, and collecting the precipitates to obtain the chitosan / ferrous sulfate composite material. The TPP and amino groups of the chitosan form ionic crosslinking through triphosphate groups, and Fe < 2 + > is successfully loaded on the surfaces of the chitosan nanoparticles. By complexing chitosan and Fe < 2 + >, the crystallinity of the material is reduced, and the adsorption activity of the amorphous structure is enhanced. Pot experiments show that by spraying the chitosan-iron nanoparticle leaf surface resistance and control agent on leaf surfaces, heavy metals of crops can be remarkably reduced, the antioxidant enzyme activity of plant tissues is improved, active oxygen is effectively removed, oxidative damage is relieved, and therefore plant growth is promoted, and the toxic effect of heavy metal stress on the crops is relieved.

The invention provides a nicotine orally disintegrating tablet with a multi-layer composite sustained-release structure and a preparation method of the nicotine orally disintegrating tablet. The nicotine orally disintegrating tablet comprises an inner layer, a middle layer and an outer layer, wherein the middle layer and the outer layer sequentially coat the inner layer from inside to outside; the outer layer comprises nicotine, instant starch and a lubricant; the middle layer comprises nicotine, ethyl cellulose, polyethylene glycol and a flow aid; the inner layer comprises the following components: nicotine nanoparticles coated with chitosan and sodium tripolyphosphate, an oral microenvironment regulator and a filling agent. According to the nicotine orally disintegrating tablet provided by the invention, due to the gradient coating structure design of the inner layer, the middle layer and the outer layer, the multi-stage accurate release of nicotine, namely early-stage quick release, middle-stage stable release and later-stage slow release, is realized, the reactions of dizziness, vomiting and the like caused by excessive release of nicotine are avoided, and the use comfort is improved. Meanwhile, the pH value of the oral cavity is adjusted, micro-ecological balance of the oral cavity is maintained, the content of volatile sulfide in breath is reduced, and breath is refreshed.

The invention aims to provide bio-based modified CNC-Pickering emulsified asphalt and a preparation method thereof, and belongs to the technical field of modified emulsified asphalt. Comprising the following components in parts by mass: 45 to 55 parts of matrix asphalt, 45 to 55 parts of deionized water, 1 to 5 parts of cellulose nanocrystal, 0.5 to 1 part of gamma-aminopropyltriethoxysilane, 0.5 to 1.5 parts of sophorolipid, 0.1 to 0.3 part of sodium citrate, 0.1 to 0.3 part of sodium tripolyphosphate, 0.5 to 2 parts of polyvinyl alcohol, 0.1 to 0.3 part of xanthan gum and 0.05 to 0.1 part of butylated hydroxytoluene. The cellulose nanocrystal and Pickering emulsification technology are combined, so that the stability of the emulsified asphalt can be improved, the ageing resistance, high temperature resistance and low temperature resistance of the emulsified asphalt can be improved, and the high-performance requirement of road engineering on the emulsified asphalt can be met.

The invention discloses a radiation cooling exterior wall brick and a preparation process thereof, and relates to the technical field of ceramic bricks. The radiant cooling exterior wall tiles include a body, a base glaze layer, a pattern layer and a protective glaze layer from the inside to the outside. The base glaze layer includes the following components in parts by mass: 40-60 parts of base glaze ceramic base glaze, 15-35 parts of cooling powder, 6-12 parts of calcined talc, 4-8 parts of calcined zinc oxide, 3-6 parts of dolomite, 2-4 parts of fluorite, 3-6 parts of calcined kaolin, 0.2-0.5 parts of sodium carboxymethyl cellulose, 0.2-0.5 parts of sodium tripolyphosphate and 40-55 parts of water; the protective glaze layer includes the following components in parts by mass: 60-70 parts of protective glaze ceramic base glaze, 10-20 parts of cooling powder, 5-10 parts of albite, 3-5 parts of calcined talc, 2-4 parts of calcined zinc oxide, 0.2-0.5 parts of sodium carboxymethyl cellulose, 0.2-0.5 parts of sodium tripolyphosphate and 40-55 parts of water. The present invention adjusts the component ratio of the base glaze layer and the protective glaze layer and simultaneously adds cooling powder for compounding, thereby ensuring the basic performance of the wall tile while improving its reflectivity and emissivity to infrared and visible light.

The invention discloses a well cementation cement repairing agent and a preparation method of a self-repairing cement-based material. The repairing agent is prepared from the following components in percentage by mass: microbial powder, nutrient substances, chitosan and a calcium source, the preparation method comprises the following steps: mixing the bacterial powder, the nutrient, the calcium source and the chitosan, and extruding and granulating; the particles are chemically cured through a sodium hydroxide solution and a sodium tripolyphosphate solution in sequence, and the high-strength chitosan-based repairing agent is formed; the repairing agent is doped into the cement-based material, and the doping amount is 1%-5% of the total mass of the cementing material. Through innovative design and preparation of the repairing agent, once the well cementation cement-based material cracks, a self-repairing mechanism is accurately triggered in a leaked CO2 environment, meanwhile, the mechanical strength of repairing agent particles is improved to 120 N through a chemical curing process, the strength, stability and durability of the repairing agent particles in the cement-based material are ensured, and the repairing agent is suitable for well cementation. Reliable guarantee is provided for long-term safe operation of carbon dioxide sealing wells and oil and gas wells.

The application discloses a kind of high wear-resistant hot bending forming rock plate, including following weight parts raw materials: kaolin 30-35 parts, fine ball clay 20-25 parts, wollastonite 10-15 parts, super white sand 10-15 parts, feldspar 8-14 parts, pyroxene 7-12 parts, talc 6-10 parts, bentonite 5-8 parts, tremolite 4-7 parts, sodium tripolyphosphate 3-5 parts, modified additive 4-7 parts.The high wear-resistant hot bending forming rock plate of the application uses kaolin, fine ball and other raw materials with modified additive, through the modification of mullite and cordierite in modified additive by specific modified liquid stirring, the silicon carbide whisker liquid in modified liquid cooperates with hydroxyapatite agent into the system, through the coordination and synergistic effect between raw materials, so that the performance of the product is further improved, the toughness performance, fracture performance and wear resistance of the product are improved in coordination.

The invention discloses anti-inflammatory polypeptide nanoparticles and a preparation method thereof, and belongs to the technical field of bioactive peptides. The anti-inflammatory polypeptide nano-particles are nano-particles obtained by coating polypeptide with an anti-inflammatory effect with chitosan and sodium tripolyphosphate, the polypeptide with the anti-inflammatory effect contains bioactive peptides of which the amino acid sequences are YAADQ, FPYTT and YVTYA. The phycocyanin anti-inflammatory peptide is natural in source, the performance of the phycocyanin anti-inflammatory peptide can be remarkably improved through the nanometer embedding technology, and compared with traditional drugs, the phycocyanin anti-inflammatory peptide has lower toxic and side effects and potential cost advantages. The polypeptide nanoparticles prepared by the invention can effectively prevent the phycocyanin anti-inflammatory peptide from being degraded in the digestive tract, have a remarkable treatment effect on mice with ulcerative colitis, and have an important application prospect in preparation of ulcerative colitis prevention and treatment products.

The invention relates to the technical field of material processing, in particular to a coating method of a pearlescent pigment base material. According to the technical scheme, the preparation method comprises the following steps: dropwise adding a water-soluble ferric salt solution into an acidified amine precipitant aqueous solution, reacting to obtain a precursor solution of ferric oxide, putting an inorganic salt additive and flaky alpha-Al2O3 powder into the precursor solution of ferric oxide, carrying out hydrothermal reaction, and cleaning and drying the precipitate after reaction, the flaky alumina-based pearlescent pigment with a good pearlescent effect is obtained. The preparation method has the beneficial effects that an aqueous solution of an amine precipitator and an iron salt solution react to obtain a precursor solution of iron oxide, the surface of alpha-Al2O3 can be coated with alpha-Fe2O3 only through hydrothermal reaction without high-temperature sintering, and sodium polyphosphate salts such as sodium hexametaphosphate, sodium tripolyphosphate and sodium pyrophosphate are introduced as additives; the coating rate of ferric oxide can be improved within a certain range, the preparation efficiency of the pearlescent pigment taking alpha-Al2O3 as the substrate is effectively improved, and the production cost is reduced.

The invention provides a core-shell microsphere for feed detoxification and a preparation method and application thereof.The core-shell microsphere comprises a sclerotium layer, a magnetic shell layer and a catalytic layer from inside to outside, and the sclerotium layer is composed of bacillus licheniformis and lactobacillus rhamnosus composite flora and a chitosan-sodium tripolyphosphate semipermeable membrane wrapping thalli; the magnetic shell layer is a Fe3O4 nano-particle coating, and the catalytic layer is a porous Mn-Ce-O shell. The microspheres have the double functions of biodegradation and chemical catalysis, the internal flora can degrade various toxins, the external catalytic layer efficiently decomposes stubborn toxins, the magnetic layer realizes rapid magnetic separation and recovery, and the microspheres are suitable for removing mycotoxins from feed raw materials such as corn and soybean meal.

The invention provides an exosome freeze-drying protective dressing and a preparation method thereof, and belongs to the technical field of dressings. Mixing a protective agent and the exosome, and embedding the mixture in a chitosan-sodium tripolyphosphate microcapsule to obtain an embedded exosome; the preparation method comprises the following steps: adding an extracellular matrix modified by MXene and graphene, calcium peroxide microspheres and an embedded exosome into a poly (alpha, beta-aspartic hydrazide)-C16 copolymer-silver hydrogel, and carrying out freeze drying to obtain the exosome freeze-drying protective dressing, wherein the extracellular matrix modified by MXene and graphene, the calcium peroxide microspheres and the embedded exosome are added into the poly (alpha, beta-aspartic hydrazide)-C16 copolymer-silver hydrogel; the prepared exosome freeze-dried protective dressing has good biocompatibility, can rapidly promote wound healing, reduce inflammatory response of wounds, play antibacterial and bacteriostatic effects and avoid wound deterioration, is convenient to store and transport, still has good activity after long-term storage, and has wide application prospects in the field of rapid wound healing.

The invention relates to the technical field of freezing, color protecting and fresh keeping of rose petals, and discloses a formula for freezing, color protecting and fresh keeping of edible rose petals and a preparation method of the formula. Comprising 40%-49% of malt syrup, 38%-49% of pineapple concentrated juice, 3%-7% of drinking water, 3%-5% of trehalose, 0.3%-0.5% of table vinegar, 0.3%-0.5% of locust bean gum, 0.3%-0.5% of hydroxy propyl distarch phosphate, 0.001%-0.003% of sodium tripolyphosphate, 0.0008%-0.002% of vitamin C and 0.003%-0.005% of natural spice for food. The prepared freezing color protection formula is reasonable in proportion, the problems of color fading, nutrition loss and cell disruption of rose petals in the freezing process can be reduced, water seepage and the like can be reduced, and the edible value of roses can be well maintained.

The invention discloses a fluoride-free strong-acid-free reverse flotation method for extracting a high-purity quartz sand flotation product from granite pegmatite, and belongs to the technical field of mineral flotation. The method comprises the following steps: carrying out graded crushing and ore grinding on granite pegmatite to obtain slurry to be treated; carrying out wet magnetic separation on the to-be-treated slurry to obtain ore pulp after magnetic separation and magnetic-containing minerals; the pH value of the ore pulp is not adjusted, reverse flotation is carried out in the presence of a quartz mixed inhibitor, and a feldspar product and a quartz product are obtained; the quartz mixed inhibitor is a combination of a component A and a component B, wherein the component A is selected from at least one of sodium metasilicate, sodium tripolyphosphate, sodium hexametaphosphate, carboxymethyl cellulose and salinized water glass; the component B is selected from at least one of guar gum, Arabic gum, sodium humate and citric acid. The method is free of fluorine and strong acid, green and efficient, and is a method for preparing high-purity quartz sand from pegmatite with high industrial application feasibility.

The invention provides an alumina refractory material for a gas turbine lining, which comprises the following main raw materials in parts by mass: 14.9-15 parts of sintered mullite, 76.8-77.3 parts of tabular corundum and 3.6 parts of alpha-alumina powder; and the auxiliary materials comprise the following raw materials in percentage by weight relative to the main raw materials: 0.2% of sodium tripolyphosphate, less than or equal to 0.7% of mullite fiber, 3% of silica fume and 1% of magnesium oxide. According to the invention, the smooth-surface alumina refractory material product for the gas turbine lining is obtained through casting molding, room-temperature curing, drying and sintering. Through detection, the compressive strength of the refractory material reaches 237.21 MPa, the bending strength reaches 40.12 MPa, and the refractory material has a good application prospect when being used as a lining material of an internal combustion engine.

The invention discloses a composition based on the synergistic effect of an SOD-LF covalent conjugate and neuromodulation and application of the composition in preparation of drugs for relieving anxiety and insomnia and improving sleep quality, and belongs to the technical field of biology. The preparation method comprises the following steps: preparing an SOD-LF covalent conjugate from lactoferrin and SOD; uniformly dispersing the SOD-LF covalent conjugate in a sodium alginate solution, spraying into a calcium chloride solution, standing, and filtering to obtain a sodium alginate coated SOD-LF covalent conjugate; and dispersing the sodium alginate coated SOD-LF covalent conjugate and fucoidin in a chitosan solution, adding sodium tripolyphosphate, stirring for reaction, and centrifugally collecting to obtain the composition based on the synergistic effect of the SOD-LF covalent conjugate and nerve regulation. According to the composition disclosed by the invention, the blood brain barrier transmittance is enhanced through the SOD-LF covalent conjugate, and the fucoidin is combined to regulate the intestinal flora-enteric brain axis to synergistically inhibit neuroinflammation and oxidative stress, so that anxiety and insomnia are improved.

The invention discloses an AES concentrated formula with high-activity components and a preparation method of the AES concentrated formula. The invention discloses an AES (acrylonitrile-ethylene-propylene-diene monomer styrene) water-based detergent which comprises the following components in percentage by weight: 25%-35% of AES, 8%-12% of sodium n-alkyl benzene sulfonate, 5%-8% of alkyl glycoside, 4%-6% of cocamidopropyl betaine, 18%-28% of a composite chelating agent, 2%-4% of sodium chloride, 0.3%-0.5% of EDTA (Ethylene Diamine Tetraacetic Acid)-disodium, 0.5%-1% of sodium benzoate, 3%-5% of propylene glycol and the balance of deionized water. AES is used as a main surfactant, and forms a ternary compound system with sodium n-alkyl benzene sulfonate, alkyl glycoside and cocamidopropyl betaine. Through the synergistic effect of the surfactants of different ion types, the critical micelle concentration (CMC) and the micelle aggregation number are remarkably improved, so that the active ingredients can form a stable micelle structure at a lower concentration, and the dirt-removing power and the foaming performance are improved. Sodium tripolyphosphate, sodium pyrophosphate and sodium citrate form a composite chelating agent, the chelating capacity of the composite chelating agent on Ca < 2 + >, Mg < 2 + > and other metal ions is larger than or equal to 300 mgCaCO3 / g, the inhibition effect of hard water on a surfactant can be effectively eliminated, and the stability of the formula under different water quality conditions is enhanced.

The invention discloses long-acting self-cleaning domestic ceramic and a preparation process thereof, and belongs to the technical field of ceramic. Comprising the following steps: firing a ceramic body; the preparation method comprises the following steps: loading cobalt-zinc-doped titanium by using carboxylated cellulose nanofibers to obtain a material A; chelating the material A with a manganese source, and crystallizing to obtain a material B; carrying out surface hydrophilic modification treatment on the material B, and roasting to obtain a material C; mixing kaolin, calcite, potassium feldspar, albite, high bauxite and mullite, carrying out ball milling, adding deionized water, ethylene glycol, calcium oxide, sodium tripolyphosphate and the material C, and continuously carrying out ball milling to obtain glaze; the long-acting self-cleaning domestic ceramic is obtained by applying the glaze to the ceramic body, drying, firing and cooling, and the long-acting lasting self-cleaning antibacterial performance of the domestic ceramic is improved.

The invention discloses a compound water retention agent for food and a preparation method of the compound water retention agent, and mainly relates to the technical field of food additives. Compared with the prior art, sodium tripolyphosphate and sodium dihydrogen phosphate are used as composite phosphates, and are matched with the coordination effect of the enzyme preparation, glycerol, microcapsules, sodium carbonate, sodium citrate, maltodextrin, protein additive and thickening agent to maintain high water-retaining property, elasticity and tenderness. According to the invention, microcapsules prepared by taking glucomannan and the like as wall materials, taking casein as an emulsifier and taking grease core materials are also added, when the meat food is subjected to deep-frying processing, grease slowly released by the microcapsules can permeate into a meat protein network to weaken the cross-linking strength among protein molecules, and other components such as xanthan gum, guar gum and the like are matched, so that the meat food has a good deep-frying effect. Therefore, the hardness of the meat product is reduced, and high elasticity and tenderness are kept.

The invention discloses a water-soluble fireproof liquid of a composite expansion source capable of being porcelainized at high temperature and a preparation method of the water-soluble fireproof liquid. The water-soluble fireproof liquid of the high-temperature porcelainized composite expansion source is prepared from the following components in percentage by mass: 10 to 20 percent of neutral silica sol, 45 to 75 percent of water glass, 1 to 3 percent of sodium tripolyphosphate, 2 to 4 percent of sodium borate, 10 to 20 percent of acrylic emulsion and 0.2 to 0.4 percent of melamine. The composite foaming mode that water glass gel foams when heated and carbon and glass body foams are combined is adopted, and inorganic components in the composite foaming mode can react at high temperature to form a high-melting-point porcelainized porous structure. The fireproof liquid can be sprayed on the surface of a material to achieve the fireproof purpose, and can also be used for dipping some materials to improve the fireproof performance of the materials.

The invention discloses a chitosan composite temperature-sensitive gel microsphere for vaginal administration and a preparation method thereof, and relates to the technical field of biological medicines.The preparation method comprises the steps that high-purity chitosan and a temperature-sensitive polymer are mixed, then a cross-linking agent is dropwise added in a gradient mode to form pre-gel, after medicine is ultrasonically embedded, spraying or micro-fluidic forming is conducted, and the chitosan composite temperature-sensitive gel microsphere is obtained; carrying out surface modification and freeze drying by using a stabilizing aid to obtain microspheres; the system is composed of a chitosan matrix, a poly N-isopropylacrylamide temperature-sensitive polymer, a sodium tripolyphosphate cross-linking agent, an antifungal / antiviral / hormone drug and a hydroxypropyl methyl cellulose stabilizing aid, the particle size of microspheres is 50-300 [mu] m, the microspheres are rapidly gelatinized at 37 DEG C, the half-life period of the drug is longer than 8 h, the adhesive force is improved by 30% or above, and the residence time is prolonged to 12 h or above. According to the invention, by constructing a temperature-sensitive interpenetrating network structure and performing surface functional modification, body temperature triggered in-situ gelation, long-acting slow release and strong adhesion synergism are realized, and the local treatment effect and patient compliance are remarkably improved.