411 results about "Calcium alginate" patented technology

The invention provides a high-porosity ceramic bond diamond micro-powder grinding tool and a preparation method and application thereof. The preparation method comprises the following steps: preparing ceramic bond diamond micro-powder composite powder by adopting a sol-gel method; the preparation method comprises the following steps: preparing porous agglomerated diamond microspheres by taking ceramic bond diamond micro-powder composite powder and an organic pore-forming agent as raw materials and adopting an atomization granulation method; the preparation method comprises the following steps: taking sodium alginate and calcium salt as raw materials, and preparing a calcium alginate water ball solution by adopting a multiple emulsion method and an atomization granulation method; the porous agglomerated diamond microspheres and the calcium alginate water balls are used as main raw materials, and a gel casting method is adopted for preparing the ceramic bond diamond micro-powder grinding tool. According to the diamond micro-powder grinding tool, the organic pore forming agent and the sodium alginate water balls are used as the pore forming agents, so that the particle size and proportion of pores in the prepared diamond micro-powder grinding tool can be accurately controlled, and the diamond micro-powder grinding tool has the characteristics of high porosity, good self-sharpening performance, low grinding resistance and the like and can be used for efficient and high-quality machining of semiconductor materials.

The invention belongs to the technical field of intestinal flora transplantation, and discloses an intestinal flora enrichment microsphere as well as a preparation method and application thereof and an enrichment method of intestinal flora. The intestinal flora enrichment microsphere provided by the invention specifically comprises a calcium alginate gel substrate and a porous adsorbent doped on the calcium alginate gel substrate, and the intestinal flora-enriched microspheres have a special pore size distribution situation, namely the pore size is gradually increased along the direction from the center to the outer layer. When the intestinal flora enrichment microspheres are applied to enrichment of intestinal flora, active flora cells can be effectively separated from small impurities such as intestinal contents and flora metabolites while the proportion of the high-activity flora cells is kept, and the intestinal flora enrichment microspheres have an excellent intestinal flora enrichment effect.

The invention relates to the technical field of electrocatalysts, in particular to a boron-doped ruthenium dioxide hollow fiber catalyst and a preparation method and application thereof. The preparation method comprises the following steps: preparing calcium alginate fibers from sodium alginate as a raw material through a wet spinning process, mixing the calcium alginate fibers with a boric acid solution, washing and drying to obtain boric acid cross-linked calcium alginate fibers, fully mixing the boric acid cross-linked calcium alginate fibers with a ruthenium trichloride solution, drying to obtain a boric acid cross-linked ruthenium alginate fiber precursor, and carrying out pyrolysis treatment to obtain the boric acid cross-linked ruthenium alginate fiber. Ruthenium ions are converted into ruthenium dioxide nano-particles, boric acid cross-linked alginate fibers are converted into hollow fibers, and boron atoms are doped into ruthenium dioxide crystal lattices to form the boron-doped ruthenium dioxide oxygen evolution reaction electrocatalyst. The boron-doped ruthenium dioxide hollow fiber can be used as a proton exchange membrane electrolytic bath and an electrolyzed water catalyst with excellent performance, and has relatively high catalytic activity and good stability. The raw materials are wide in source, expensive equipment is not needed, and large-scale preparation can be performed.

The invention provides a photo-thermal evaporation material based on black titanium dioxide as well as a preparation method and application of the photo-thermal evaporation material. The preparation method comprises the following steps: mixing urea, absolute ethyl alcohol and tetrabutyl titanate into a solution A, mixing absolute ethyl alcohol, ultrapure water and hydrochloric acid into a solution B, dropwise adding the solution B into the solution A, mixing to form a white colloid, heating in a water bath, drying, and calcining in a nitrogen atmosphere to obtain black titanium dioxide powder; the preparation method comprises the following steps: fully mixing a certain amount of black titanium dioxide, sodium alginate and ultrapure water to form a uniform dispersion liquid, dipping the pretreated polyurethane sponge in the dispersion liquid, and crosslinking with a calcium chloride solution to prepare the photo-thermal evaporation material of the black titanium dioxide-calcium alginate composite hydrogel. The photo-thermal evaporation material breaks through the photo-thermal application bottleneck of traditional titanium dioxide, has excellent evaporation rate and seawater desalination performance, and can effectively remove various printing and dyeing wastewater to obtain clean water.

The invention belongs to the field of interface evaporation materials, and provides an interface evaporation material loaded with PDA / rGO photo-thermal hydrogel and a preparation method of the interface evaporation material. The PDA / rGO photo-thermal hydrogel loaded interface evaporation material is composed of a sponge material and PDA / rGO photo-thermal hydrogel loaded on the sponge material, and the PDA / rGO photo-thermal hydrogel is composed of calcium alginate hydrogel and a polydopamine / reduced graphene oxide composite material loaded in a polymer network of the calcium alginate hydrogel. The polydopamine / reduced graphene oxide composite material is prepared from reduced graphene oxide and polydopamine combined on the surface of the reduced graphene oxide; the interface evaporation material takes a sponge material as a porous skeleton, the PDA / rGO photo-thermal hydrogel is attached to the porous skeleton, and the interface evaporation material has a porous structure. According to the invention, the long-term use stability and evaporation flux of the existing hydrogel-based interface evaporation material can be improved.

The invention relates to the technical field of intelligent food production, in particular to a probiotic plant beverage production method and system.The method comprises the steps that mildewed and damaged areas of penthorum chinense pursh, gastrodia elata and other plant raw materials are recognized and removed, the content of reducing sugar is detected, and a traceability identifier is generated; the preparation method comprises the following steps: compounding lactobacillus plantarum A, lactobacillus plantarum B and lactobacillus paracasei, embedding by adopting a sporopollen-calcium alginate core-shell structure, and adjusting the thickness of a shell layer and the concentration of carboxymethyl pachymaran; correcting Arrhenius equation activation energy Ea through bacterial colony density data so as to calculate the attenuation rate k value in the shelf life; after the fermentation liquor is embedded for the second time, QR code labels are generated for products qualified in primary inspection, and RFID temperature and humidity sensing chips are integrated; and pushing real-time shelf lives of qualified finished products, probiotic flora activity reports and traceability identifiers to consumers. According to the invention, the problems of low efficiency, lag in fermentation regulation, backward traceability technology and isolated intelligent technology of the traditional process are solved.

The invention discloses a bacterial cellulose-calcium alginate aerogel fiber and a preparation method thereof. The preparation method comprises the following steps: (1) preparing a spinning solution from bacterial cellulose and sodium alginate; and (2) extruding the spinning solution into a coagulating bath by adopting an injection pump to obtain hydrogel fibers, transferring the hydrogel fibers into a replacement liquid to replace moisture in the hydrogel fibers, and then freezing and drying to obtain the aerogel fibers. According to the preparation method, bacterial cellulose and sodium alginate are mixed to prepare a spinning solution, calcium ions are used for solidification forming, the bacterial cellulose can provide a continuous, intercontinuous and non-agglomerated spatial network under a certain concentration, and the spatial network guarantees a stable spatial structure and excellent torsion resistance of the aerogel fiber; and the sodium alginate solution is uniformly dispersed on the surface of the bacterial cellulose nanofiber, and is cured by calcium chloride, so that the structural stability of the aerogel fiber is further ensured, and the mechanical property and torsion resistance of the aerogel fiber are improved.

The invention belongs to the technical field of inter-cooling water treatment, and relates to a system and method for cooperatively treating inter-cooling water through multi-stage bypasses. Comprising a gradient filtering unit, a modified adsorption unit and a composite adsorption unit which are sequentially connected, a bottom outlet of the gradient filtering unit is connected with a bottom inlet of the modified adsorption unit; a top outlet of the modified adsorption unit is connected with a top inlet of the composite adsorption unit; the gradient filtering unit sequentially comprises a manganese sand layer and a quartz sand layer from top to bottom; the modified adsorption unit is filled with a coal gangue modified straw biochar material; the composite adsorption unit is internally filled with a microcapsule-embedded calcium alginate-vinasse biochar composite material. According to the invention, three-stage cooperative treatment of iron suspended matter interception, sulfate radical adsorption and iron ion chelation is realized, and low-cost, green and sustainable indirect cooling water deep purification is realized by using the solid waste-based functional material.

The invention discloses a controllable degradation antibacterial filament fiber and a preparation method thereof, a calcium alginate filament fiber is prepared by using a wet spinning technology, and the calcium alginate filament fiber is strongly modified by physical and chemical methods respectively. The chemical modification adopts a cross-linking agent for modification, and the physical modification adopts cellulose nanocrystal (CNC) as a reinforcing material. The tensile breaking strength is improved to 43.25 cN / dtex from 16.35 cN / dtex which is not modified, the tensile breaking strength is improved by 2.6 times, and the degradation period is prolonged to 7 days from 2 days. On the basis, berberine is introduced into the fiber, so that the mechanical enhancement effect can be further achieved by means of the electrostatic attraction effect between materials, the antibacterial performance is obtained, and the antibacterial rate can reach 95.28%.

The invention discloses a calcium alginate-gelatin-lysozyme composite antibacterial film and a preparation method and application thereof, and relates to the technical field of food antibacterial packaging.The method comprises the steps that sodium alginate is dissolved in water to obtain a solution containing 1%-3% (w / w) of sodium alginate, 0.5%-3% (w / w) of gelatin is added, the mixture is heated to 50-85 DEG C in a water bath till the solution is in a dissolved state, and the solution is cooled to the room temperature to obtain the calcium alginate-gelatin-lysozyme composite antibacterial film. Finally, glycerol with the total mass fraction being 0.2%-0.5% is added to serve as a plasticizer, and a sodium alginate-gelatin composite film is prepared through drying with a solution casting method; placing the sodium alginate-gelatin composite membrane in a 0.5%-3% (w / w) CaCl2 solution to prepare a calcium alginate-gelatin composite membrane; placing the calcium alginate-gelatin composite membrane in a lysozyme solution, oscillating, taking out, and drying at 25-50 DEG C to obtain the calcium alginate-gelatin composite membrane. The method has the beneficial effects that the method is simple and easy to implement, has a good antibacterial effect and better mechanical properties, is high in safety, is green and environment-friendly, and can inhibit growth and reproduction of common pathogenic bacteria and putrefying bacteria.

The invention discloses a method for improving gastrointestinal tolerance of probiotics and a probiotic liquid core gel ball, the probiotic liquid core gel ball is prepared by adopting a calcium alginate cross-linked reverse spheroidizing method, and various indexes influencing the characteristics of the probiotic liquid core ball after re-culture are optimized, the process is simple in preparation, raw materials are natural and safe, the cost is low, and the method is suitable for industrial production. The tolerance and the survival rate of the probiotics in gastrointestinal digestion can be well improved, and the probiotic liquid core gel ball prepared by the method disclosed by the invention has good mechanical property, swelling rate and storage survival rate; by optimizing various parameters, such as re-culture time, core material liquid viscosity, polysaccharide molecular weight and a storage solution, which influence the characteristics of the probiotic liquid core ball after re-culture, the re-cultured liquid core ball has better mechanical properties, swelling rate and survival rate, and by combining with a gastric acid-cholate resistance reaction result, the survival rate of the liquid core ball is improved. The invention provides the preparation process of the re-culture solution core ball capable of effectively improving the gastrointestinal tolerance of the probiotics whether the core ball is broken or not.

The invention relates to the technical field of chemical remediation of organic contaminated sites, in particular to a long-acting remediation agent for organic contaminated sites and a preparation method thereof.The preparation method comprises the steps that S1, calcium chloride is dissolved and then dropwise added into a nano core material; s2, adopting a surfactant for self-assembly, and limiting the calcium peroxide-nano core material compound in a polymer cavity; s3, through vacuum impregnation, the nanosheets are infiltrated into pore channels of the mesoporous polymer core-shell microspheres; s4, taking the composite mesoporous polymer core-shell microspheres as capsule cores, coating the surfaces of the capsule cores with calcium alginate / chitosan skin layers, and naturally drying. The prepared remediation agent has very strong adsorbability, can adsorb organic pollutants in soil and oxidize and degrade the organic pollutants by utilizing the strong oxidizing property of calcium peroxide, and meanwhile, the nano core material has high activity, can provide sufficient active sites for oxidation of calcium peroxide, improves the oxidation effect and enhances the oxidation effect; therefore, the degradation of organic pollutants can be accelerated.

The invention belongs to the technical field related to tumors, and discloses a preparation method of self-developing embolism microspheres. Comprising the following steps: producing calcium alginate microspheres through cross-linking, obtaining polyelectrolyte hydrogel microspheres through electrostatic complexation, and obtaining the self-developing embolism microspheres through amino cross-linking. According to the invention, sodium alginate and polyamino acid are used as raw materials for preparation, so that the preservative is safe and non-toxic and has biodegradability, and the degradation product has no toxic or side effect on human body. The microspheres are prepared by adopting an electrostatic spraying method, organic solvents are not used, and the microspheres are green and environment-friendly and have no toxic residues.

The invention discloses cobaltosic oxide loaded ruthenium dioxide fibers as well as a preparation method and application thereof, and relates to the technical field of electrolyzed water. The preparation method comprises the following steps: carrying out wet spinning on sodium alginate and calcium chloride to prepare calcium alginate fibers, then sequentially reacting the calcium alginate fibers with hydrochloric acid and cobalt chloride, calcining to obtain cobaltosic oxide fibers, reacting the cobaltosic oxide fibers with ruthenium trichloride, and carbonizing to obtain the cobaltosic oxide loaded ruthenium dioxide fibers. According to the invention, Co3O4 is utilized to transfer electrons to RuO2, so that the valence state of ruthenium is reduced, and dissolution of high-valence ruthenium in an acidic OER process can be inhibited, so that the OER activity under an acidic medium is improved, and the stability can be improved. Specifically, in a 0.1 M HClO4 electrolyte, under the current density of 10 mA / cm < 2 >, the overpotential is 220 mV, and the voltage is basically unchanged after continuous testing for 100 h.

The invention relates to the field of sewage treatment, and provides double-layer anaerobic bacteria-algal-bacterial symbiotic immobilized particles as well as a preparation method and application thereof. The double-layer anaerobic bacteria-algal-bacterial symbiotic immobilized particle sequentially comprises a PAN (polyacrylonitrile) fiber particle, an anaerobic bacteria layer, a polymer film, an algal-bacterial symbiotic layer and a calcium alginate gel layer from inside to outside. The preparation method comprises the following steps: modifying PAN fiber particles to enable the PAN fiber particles to carry positive charges, and putting the modified PAN fiber particles into an anaerobic bacteria solution for dipping adsorption; coating a PVDF (Polyvinylidene Fluoride) solution to form a polymer film, so as to obtain PAN (Polyacrylonitrile) fiber particles for immobilizing anaerobic bacteria; soaking in a mixed solution of an algal-bacterial symbiotic suspension and sodium alginate, taking out, putting into a calcium chloride solution, and cross-linking and hardening to form gel. Anaerobic microorganisms and aerobic microorganisms in the immobilized particles are subjected to regional division and immobilization, and the inner-layer anaerobic microorganisms and the outer-layer aerobic microorganisms play a greater role in different regions of a carrier by virtue of a physiological synergistic effect among the microorganisms, so that carbon, nitrogen and phosphorus in sewage are deeply removed.

The invention discloses a preparation method of immunoglobulin composite liposome nanoparticles with a controlled release characteristic, and belongs to the field of food nutrition and functional factors. Cholesterol and sitosterol are creatively used as auxiliary supports of a lecithin liposome skeleton, the stability of an immunoglobulin liposome nanoparticle structure is improved, the slow release property in the simulation effect process is improved, and a pH response type hydrogel film formed based on electrostatic crosslinking is prepared from calcium alginate and chitosan. A more stable double-layer shell-core structure is formed, so that the stability of embedded immune globulin molecules in gastric juice is further improved, and fixed-point slow release in small intestines is realized.

The invention relates to a compound biocontrol bacterium immobilized microsphere as well as a preparation method and application thereof, and belongs to the technical field of biocontrol. In order to solve the problem of lack of compound biocontrol bacteria and an effective immobilization method in the prior art, the invention provides a compound biocontrol bacteria immobilized microsphere, which is formed by embedding compound biocontrol bacteria in sodium alginate-calcium chloride, and the compound biocontrol bacteria comprise bacillus velezensis and spiropolyspora pink. The bacillus velezensis and the spiropolyspora pink have an excellent inhibition effect on botrytis cinerea after being compounded, and the compound bacterial liquid is immobilized in the calcium alginate microspheres by virtue of an immobilization technology, so that the activity of microorganisms can be more effectively maintained, and the stability and the effect of biological control are remarkably improved. According to the invention, the compounding proportion and the immobilization preparation process of the biocontrol bacteria are optimized, so that the antibacterial effect of the compounded biocontrol bacteria immobilized microspheres reaches 76.19%, which is superior to that of a compounded microbial inoculum and a traditional chemical pesticide.

The invention relates to the technical field of preparation of food additives, in particular to a betacyanin microcapsule as well as a preparation method and application thereof. The preparation method comprises the following steps: jointly dissolving sodium alginate and soybean protein isolate in water to obtain an SA-SPI compound; the SA-SPI compound, CaCO3 and betacyanin are mixed, and a water phase is formed; mixing liquid paraffin, glacial acetic acid and Tween 80 to obtain an acetic acid-containing oil phase; mixing the water phase with the acetic acid-containing oil phase to form a water-in-oil emulsion, and standing to form calcium alginate gel beads; the calcium alginate gel beads are subjected to pre-freezing-freeze-drying treatment, and the betacyanin microcapsules are obtained. The prepared betacyanin microcapsule has the characteristics of controllable particle size, high stability and easiness in industrialization, and the application range of betacyanin is widened. In addition, the preparation method disclosed by the invention is safe and simple to operate, has the advantages of low cost and high benefit, and can be directly applied to large-scale production.

The invention relates to the technical field of soil amendments, in particular to a soil amendment containing earthworm enzymatic hydrolysate and a preparation method of the soil amendment. The soil conditioner containing the earthworm enzymatic hydrolysate comprises the following components: earthworm enzymatic hydrolysate microcapsules and adjuvant particles in a mass ratio of (2-4): 1, the earthworm enzymatic hydrolysate is prepared by performing enzymolysis on fresh earthworm homogenate by compound enzyme, and the compound enzyme comprises cellulase and protease; the wall material of the earthworm enzymatic hydrolysate microcapsule comprises at least one of chitosan, calcium alginate, gelatin and Arabic gum; the auxiliary agent comprises humic acid and inorganic natural minerals. According to the soil conditioner containing the earthworm enzymatic hydrolysate, the earthworm enzymatic hydrolysate is wrapped by the microcapsules, the retention rate of active ingredients in the earthworm enzymatic hydrolysate can be remarkably increased, and the soil condition can be further improved by matching with humic acid and inorganic natural minerals for use.

The invention relates to the technical field of agriculture, and discloses a preparation process of a soil conditioner. The soil conditioner is prepared from the following raw materials in parts by weight: 30 to 50 parts of plant ash, 30 to 50 parts of peanut shell, 15 to 25 parts of coconut shell, 15 to 25 parts of composite enhancer, 3 to 6 parts of ammonium sulfate, 10 to 20 parts of calcium alginate, 8 to 15 parts of urea, 12 to 18 parts of modified cellulose, 5 to 8 parts of polyethyleneimine and 30 to 50 parts of deionized water. Specifically, plant ash, peanut shells, coconut shells and other biomass are used as main materials, various auxiliaries are added, and the capacities of water retention, breathability, fertility increasing and the like of the soil are comprehensively improved; the composite reinforcing agent improves the water-retaining property and the air permeability of the soil and has the effect of balancing the pH value of the soil; the modified cellulose can improve the water-retaining property of the soil by utilizing the strong water absorption effect and reduce nutrient loss, so that the soil fertility is improved.

The present application discloses a rumen-passed Schizochytrium preparation, a preparation method of the rumen-passed Schizochytrium preparation, and an application thereof. The rumen-passed Schizochytrium preparation comprises a core material and at least one layer of coating, wherein the core material comprises calcium alginate microspheres embedded with Schizochytrium cells, and the coating is coated on the core material so that the oil is wrapped in the calcium alginate microspheres, thereby improving the stability of unsaturated fatty acids and reducing the risk of unsaturated fatty acids leaking in the rumen; the preparation method comprises firstly subjecting the Schizochytrium fermentation product to calcium alginate microsphere embedding and immobilization treatment, then drying the immobilized fermentation product to obtain the core material, and finally coating the core material to obtain the rumen-passed Schizochytrium preparation, effectively avoiding the problems of "pipeline blockage" and "oxidation and deterioration of Schizochytrium powder", thereby improving the yield of Schizochytrium powder in the drying process and simplifying the preparation process, and the finally prepared rumen-passed Schizochytrium preparation has an ideal hardness.

The application discloses a degradable cotton soft towel and a preparation method thereof, relates to the technical field of fiber composite materials, and belongs to the patent classification D01F8 / 02. The preparation method comprises the following steps: performing alkali treatment and enzymolysis on Egyptian long-staple cotton fibers to obtain pretreated cotton fibers, and preheating, stretching and setting poly-caprolactone fibers to obtain pretreated poly-caprolactone fibers; mixing and opening the two kinds of fibers, and then air-laying to form a fiber web; constructing a super water-absorbing network by impregnating a main network solution carboxymethyl chitin and oxidized cellulose nanofilament and an auxiliary network dispersion liquid calcium alginate gel microspheres and a hyaluronic acid crosslinking body; forming micron protrusions through hexagonal nickel template hot pressing, and obtaining a base by electrostatic spraying modification of nano silicon dioxide; and obtaining the cotton soft towel through vacuum drying, slitting and sterilization after spraying of an essence liquid. The cotton soft towel has excellent water absorption performance through the synergistic effect of multistage pores, a super water-absorbing network and micro-nano surface modification, and the poly-caprolactone fibers and the cotton fibers used in the cotton soft towel are mixed, and both have good biodegradability.

The invention belongs to the field of environmental governance. The invention provides a birnessite-oxygen-releasing agent composite bottom mud repair material and preparation and application methods thereof, the birnessite-oxygen-releasing agent composite bottom mud repair material comprises a modified oxygen-releasing agent, birnessite, microbial flora and an embedding matrix, the embedding matrix comprises hydrogel formed by crosslinking calcium alginate, polyvinyl alcohol and water, the microbial flora comprises a domesticated aerobic nitrogen and phosphorus removal mixed flora. According to the birnessite-oxygen release agent composite bottom mud remediation material, the photoelectrocatalytic activity of birnessite is utilized to cooperate with the oxygen release capacity of an oxygen release compound, the oxidation-reduction potential of bottom mud is improved, the continuous degradation capacity of the material to organic pollutants is enhanced, nitrogen pollutants in a water environment are removed cooperatively, and the in-situ remediation effect of the bottom mud is enhanced; the method is applied to bottom mud remediation, is more efficient and environment-friendly, and has a long-term effect.

Provided herein is a see-through transparent, stable, safe and (bio)degradable hydrogel-based particulate support medium, made of calcium alginate particles. The calcium alginate particles, or hybrid hydrogel particles, are characterized by a substantially homogeneous average particle size that ranges from 0.1 micrometer to 5 micrometer.

The invention discloses a preparation method of stability-enhanced alginic acid-keratin-based double-coated nanoparticles. The preparation method comprises the following steps: carrying out controllable enzymolysis, enzyme deactivation, centrifugation and freeze-drying on keratin to obtain keratin nanoparticles formed by self-assembly; dispersing the keratin nanoparticles in an acidic buffer solution to carry out structure development, adding bioactive molecules, and adjusting the pH to be neutral to recombine and close the keratin nanoparticle structure to obtain a keratin nanoparticle solution loaded with the bioactive molecules; the preparation method comprises the following steps: taking keratin as a template, dispersing the keratin into a sodium alginate solution, dropwise adding into a calcium chloride solution, cross-linking to form a calcium alginate shell, dialyzing or centrifuging to remove free bioactive molecules, and freeze-drying to obtain the bioactive molecule loaded alginic acid-keratin-based double-coated nanoparticles. The invention also discloses double-coated nanoparticles and application thereof, through controllable enzymolysis and pH regulation and control, the self-assembly and bioactive molecule encapsulation of the keratin nanoparticles are improved, and the double-coated nanoparticles with regular shape, good dispersibility, good redissolvability and good environmental stability are formed.

The invention discloses a CuS / PGS-PSBMA-calcium alginate hydrogel microsphere for treating inflammatory bowel disease and a preparation method thereof, and the preparation method of the oral hydrogel microsphere comprises the following steps: (1) crosslinking CuS / PGS and PSBMA, and preparing the CuS / PGS-PSBMA hydrogel microsphere by adopting an air flow control technology; and (2) performing calcium ion diffusion cross-linking to obtain a core-shell structure hydrogel microsphere with calcium alginate as a shell and CuS / PGS-PSBMA as a core, thereby obtaining the CuS / PGS-PSBMA-calcium alginate hydrogel microsphere for treating the inflammatory bowel disease. The core-shell structure hydrogel microsphere for treating the inflammatory bowel disease is prepared by utilizing an air flow control technology and an ion diffusion method, can be accurately dissolved and release hydrogel at the colon part after being orally taken, and is adhered to the local intestinal wall to promote polarization of intestinal M2 macrophages, so that the inflammatory bowel disease is treated, and the curative effect is good. The medicine is a safe and multi-effect enteritis treatment medicine with clinical transformation significance.

The invention relates to a composition for regulating intestinal microenvironment and relaxing bowel and a preparation method thereof, and belongs to the technical field of biology. The composition comprises the following components in specific parts: artichoke-siraitia grosvenorii-fructus cannabis composite extract peptide, bacillus coagulans-lactobacillus reuteri calcium alginate microspheres, escherichia coli bacteriocin, salmonella bacteriocin, a liquorice extract, a semen cassiae extract, a herba cistanche extract, a dendrobium officinale extract and the like. Wherein the artichoke-siraitia grosvenorii-fructus cannabis compound extract peptide, bacillus coagulans-lactobacillus reuteri calcium alginate microspheres, the liquorice extract, the semen cassiae extract, the herba cistanche extract and the dendrobium officinale extract are obtained by a special preparation method. Through cooperation of the components, the intestinal microenvironment can be adjusted from multiple angles, and the comprehensive effects of improving the intestinal flora structure, inhibiting harmful bacteria, promoting the growth of beneficial bacteria, lubricating the intestinal tract, relieving intestinal inflammation, enhancing the intestinal mucosal barrier function, improving the intestinal immunity and the like are achieved.

The invention relates to a decarburization gasification slag green mortar concrete blender and a preparation method thereof. The invention relates to a bacillus pasteurii water-soluble fertilizer which comprises microbial mineralized bacteria liquid of bacillus pasteurii, microcapsules (shells of which are composed of gelatin calcium alginate composite layers and ZrO2 nano-coatings) for encapsulating sodium gluconate, steel slag powder (the particle size is less than 50 microns) subjected to carbon dioxide carbonization treatment, plasma modified powder of which the surface is grafted with a silane coupling agent, and rosin soap, wherein the shells of the microcapsules are composed of gelatin calcium alginate composite layers and ZrO2 nano-coatings; the steel slag powder is subjected to carbon dioxide carbonization treatment; a polycarboxylic acid water reducing agent, a naphthalene water reducing agent and the like. The preparation method comprises the following steps: carrying out mixed culture on the decarburized gasification slag and a microbial mineralized bacterial solution, carrying out plasma treatment on the HPMC, xanthan gum and steel slag powder, mixing the cellulose ether and the starch ether under the assistance of ultrasonic waves, packaging the retarder by a spray drying method, and mixing the modified steel slag powder and the microcapsules according to a specific mass ratio. According to the invention, a microorganism-microcapsule-steel slag synergistic system is combined with a plasma modification technology, so that high performance and greenization of the concrete blender are realized, and the strength, durability and other properties of concrete are improved.

The invention relates to a blended yarn and a preparation method thereof, the blended yarn comprises a three-layer composite structure: a surface layer comprises a single-sided single jersey weave woven by 50D-150D supercritical CO2 waterless dyed polyester filament yarn, and the single-sided single jersey weave accounts for 30%-70% of the total mass of the blended yarn; the middle layer comprises lyocell colored spun yarn which is connected through tuck loops, the lyocell colored spun yarn comprises 5wt%-15wt% of black lyocell fibers and 85wt%-95wt% of fibril which are blended, and the surface of the lyocell colored spun yarn is coated with a chitosan / sodium alginate ion cross-linked composite layer; the inner layer comprises looped pile weaves woven by lyocell colored spun yarns, the looped pile weaves are subjected to crosslinking treatment through a CaCl2 solution to form a calcium alginate flame-retardant layer, and the surface resistivity is smaller than or equal to 1 * 10 < 9 > omega.cm. The blended yarn provided by the invention is self-assembled through chitosan / sodium alginate ions, so that flame retardance, antibacterial property and antistatic property are synchronously realized; the water consumption is reduced by supercritical CO2 dyeing, and the fiber strength is protected by low-temperature setting.

The invention discloses a preparation method of modified mineral powder for adjusting and controlling the viscosity of concrete. The preparation method of the modified mineral powder comprises the following steps: placing vertical mill mineral powder in a hydrochloric acid solution for ultrasonic treatment and infiltration to obtain activated mineral powder; preparing a sodium alginate solution and a calcium chloride cross-linking solution, adding the activated mineral powder into the sodium alginate solution to obtain a mineral powder suspension, and dropwise adding the mineral powder suspension into the calcium chloride cross-linking solution to react to obtain calcium alginate coated mineral powder; the preparation method comprises the following steps: dissolving sodium citrate, glucolactone and active nano silicon dioxide in water to form precursor sol; and adding the calcium alginate coated mineral powder into the precursor sol to obtain the modified mineral powder. The modified mineral powder prepared by the method disclosed by the invention realizes double effects of morphology regularization and viscosity controllability, and has an adjusting and optimizing effect on the viscosity problem of concrete when being applied to the concrete; and the method improves the activity of the mineral powder and the bonding strength of interfaces of the mineral powder and other components at the same time, so that the compactness and the overall strength of the concrete are improved.