195 results about "Sodium triphosphate" patented technology

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 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 belongs to the technical field of biological medicine, and relates to an oral peptide drug delivery system based on a soybean trypsin inhibitor and core-shell hydrogel, the oral peptide drug delivery system comprises therapeutic polypeptide, KTI and a core-shell structure gel matrix, and the problems that an existing oral peptide delivery system is passively protected and drug burst release is remarkable are solved. A chitosan / sodium tripolyphosphate ionic cross-linked network forms an inner core, a sodium alginate / calcium ion'egg box 'structure cross-linked network forms a shell, and therapeutic polypeptides such as liraglutide and KTI are jointly embedded. Through the pH response characteristic and sequential release design of the core-shell structure, KTI is preferentially and rapidly released in the intestinal environment to inhibit local protease activity, then therapeutic polypeptide is slowly released, and active protection and synergistic interaction are achieved. The invention further provides a specific preparation method and parameters. The polypeptide has the advantages of stable structure in a gastric acid environment, targeted release in intestinal tracts, high encapsulation efficiency, capability of avoiding burst release and the like, and provides a new strategy for efficient delivery of oral polypeptide drugs.

The invention relates to a preparation technology of an active bio-based food preservative film with high barrier property and high antibacterial rate, in particular to the field of food packaging and food preservation. The method comprises the following steps: by taking chitosan as a matrix, firstly, loading gallic acid by using nanoparticles prepared from the chitosan and sodium tripolyphosphate; and then, adding the chitosan nanoparticles loaded with gallic acid into a chitosan polymer network to prepare a chitosan-nanoparticle composite film, and preparing the film with high flexibility, high barrier property and high antibacterial activity. The aquatic product preservative has excellent mechanical property, barrier property, biological activity and biodegradability, can effectively prolong the shelf life of aquatic products, and has wide application prospects in the fields of food industry, preservation and the like.

The invention discloses a formula and a preparation method of a glutinous rice sausage. The preparation method comprises the following steps: stir-frying glutinous rice and salted meat; the stir-fried glutinous rice comprises glutinous rice, fried lard oil, minced garlic, trehalose, refined salt and monosodium glutamate; the salted meat comprises pork, chopped salted fat dices, water, white granulated sugar, refined salt, monosodium glutamate, sodium tripolyphosphate, sodium pyrophosphate and auxiliary materials; the preparation of the stir-fried glutinous rice comprises hot frying and cold frying. The flavor of the glutinous rice sausages is remarkably improved, the glutinous rice in the sausages absorbs grease of the stuffing, particles are full, the taste is fragrant, sweet, soft and glutinous, and the overall flavor is richer and more harmonious.

The invention discloses an efficient retarding and strength-retaining composite retarding formula and application of the efficient retarding and strength-retaining composite retarding formula in alpha-semi-hydrated gypsum, and the composite retarding formula is prepared from the following raw materials in parts by weight: 0.01 to 0.06 part of sodium tripolyphosphate, 0.02 to 0.08 part of a retarding auxiliary agent and 0.01 to 0.04 part of a reinforcing agent; the retarding auxiliary agent is a composition of protein substances and carbohydrates. The composite retarding formula developed by the invention has a synergistic effect, aims to realize efficient retarding under a low mixing amount, meanwhile, the used raw materials are low in price and easy to obtain, the operation is simple and convenient, and the composite retarding formula shows a wide prospect for high-valued application of alpha-HH.

The application discloses a cast iron enamel high-temperature matte glaze without fluorinated salt and nitrate, and a preparation method and application thereof, and belongs to the technical field of enamel. The matte glaze is prepared from quartz, borax pentahydrate, titanium dioxide, sodium carbonate, calcium carbonate, barium carbonate, aluminum oxide, sodium tripolyphosphate, potassium carbonate and lithium carbonate according to specific mass proportions. The preparation comprises raw material mixing, smelting at 1300+ / -10 DEG C under a pure oxygen environment, and rapid cooling after wire drawing detection of the smelting state. The matte glaze completely avoids the use of fluorinated salt and nitrate, eliminates the problems of fluoride emission and environmental protection equipment blockage from the source, and the fluorine content of the product is not detected through detection, thereby meeting the limit value requirements of the EU REACH regulation. Meanwhile, the matte glaze has good enamel surface, excellent firing performance and matte performance, is suitable for a cast iron substrate, has a firing temperature of 780-800 DEG C, and can be used for the production of green and environmentally-friendly enamel products.

The invention relates to the technical field of comprehensive utilization of vanadium titano-magnetite resources, in particular to a flotation combined reagent and a flotation method for vanadium titano-magnetite associated ultralow-grade cobalt-nickel ore. The flotation combined reagent comprises a copper ammonia compound activating agent composed of copper sulfate, ammonium carbonate and sodium citrate, a compound inhibitor composed of sodium humate, tannic acid and sodium tripolyphosphate, a main collecting agent butyl xanthate, an auxiliary collecting agent alkyl hydroxamic acid and a foaming agent diethylene glycol monobutyl ether. According to the method, a technical system of bulk flotation process-novel collaborative reagent system is constructed, so that the technical problem of recycling associated ultralow-grade cobalt and nickel resources in the vanadium titano-magnetite iron separation tailings is successfully solved, the problem of low separation efficiency of ultralow-grade minerals is effectively solved, a complete and efficient technical scheme is formed, and the method is suitable for industrial production. And an innovative technical path is provided for comprehensive recovery of associated cobalt and nickel resources of the vanadium titano-magnetite.

This invention discloses a wheat-specific fertilizer suitable for rice-wheat rotation and its preparation method, comprising the following steps: mixing equal volumes of carboxymethyl chitosan solution, composite biochar dispersion, and agar solution, then adding sodium tripolyphosphate solution dropwise, stirring, allowing to stand, dialyzing, and freeze-drying to obtain hydrogel particles; swelling the hydrogel particles in a mixed aqueous solution of urea and superphosphate, filtering, and vacuum drying to obtain the wheat-specific fertilizer suitable for rice-wheat rotation; this invention uses a coating material to coat composite biochar powder, nitrogen fertilizer, and phosphate fertilizer, and improves the utilization rate of nitrogen and phosphate fertilizer through the slow-release effect of the coating material; by adsorbing fixed trace metal elements through the coating material, the slightly acidic state of the phosphate fertilizer during dissolution is used to convert the adsorbed fixed trace metal elements into a free state, and then titanium aluminum carbide promotes the movement of the free trace metal elements, thereby promoting the absorption and utilization of trace metal elements by wheat roots and improving wheat yield and quality.

The invention belongs to the field of functional textile materials and filtering materials, and provides a multi-effect functional non-woven fabric. According to the invention, a collaborative design of a composite non-woven structure and an immobilized functional layer is adopted, and the composite non-woven structure is composed of a spun-bonded layer containing polyamide 6 and a melt-blown layer containing maleic anhydride grafted polyamide 6; the immobilized functional layer comprises quaternized chitosan-sodium tripolyphosphate ionic cross-linked nanoparticles and forms amido bonds through ring-opening reaction of anhydride groups and amino groups, and the amido bonds are firmly fixed on the surface of the composite non-woven structure; multiple properties such as low-pressure-drop high-flux filtration, efficient particulate matter trapping, high-positive-charge antibacterial and hydrophilic multi-effect synergy, long-acting stable fixation of a functional layer in a humid and hot environment and the like are realized, and the technical problem that performance synergy, interface stability and process compatibility of an existing filtration protection material are difficult to consider is solved; wide application values are realized in the fields of air filtration, personal protection, medical treatment and public health and the like.

The invention belongs to the technical field of medical polymer materials, and particularly relates to a preparation method of a surgical anti-adhesion hydrogel material. The material is prepared from 2, 3-diformylbenzoic acid modified gelatin, 3, 4-dihydroxyphenylethylamine, sodium hyaluronate, sodium tripolyphosphate, hydrogen peroxide, ascorbic acid and a phosphate buffer solution. Modified gelatin powder is obtained through a grafting reaction of 2, 3-diformylbenzoic acid and gelatin, then the modified gelatin powder, 3, 4-dihydroxyphenylethylamine and an auxiliary agent are prepared into a main gel solution, hydrogen peroxide and ascorbic acid are added before use, and the main gel solution is quickly crosslinked into gel under the body temperature condition. The obtained hydrogel can be stably combined with the tissue surface, the degradation process is matched with tissue repair, and the hydrogel has a free radical scavenging effect. Animal experiments show that the material can effectively reduce abnormal adhesion between postoperative tissues and has a good clinical application prospect.

The invention belongs to the field of feed protein processing, and particularly relates to a method for improving the bioavailability of animal feed protein through chemical enzymolysis. The method comprises the following steps: mixing a compound protein raw material with water to form a suspension; sodium tripolyphosphate is added for phosphorylation pretreatment, so that protein is subjected to specific modification; after the pH is adjusted to be acidic, pepsase and acid phosphatase are added at the same time for an enzymolysis reaction; and after the reaction is finished, performing enzyme deactivation and drying to obtain the modified feed protein. According to the method, a specific enzyme cutting site is created on a protein molecule through chemical phosphorylation, then directional hydrolysis is achieved through efficient recognition of pepsin on the site, and meanwhile dynamic regulation and control of the hydrolysis process are achieved by means of the dephosphorylation effect of acid phosphatase. The obtained product has the outstanding advantages of high content of small peptides, good digestive absorbability, low bitterness, strong biological activity and the like, and the bioavailability of feed protein is remarkably improved.

The present invention relates to the technical field of biodegradable materials. Disclosed is a preparation method for a bioactive glass fiber reinforced polylactic acid composite material. The preparation method comprises the following steps: (1) subjecting bioactive glass fibers to a plasma treatment; (2) dissolving chitosan in an aqueous acetic acid solution, and then adding the treated bioactive glass fibers thereto, so as to obtain a mixed solution I; (3) adding a bioactive glass powder to an aqueous sodium tripolyphosphate solution, and then subjecting same to ball milling, so as to obtain a mixed solution II; (4) gradually adding the mixed solution II to the mixed solution I while stirring same, continuously stirring same overnight after the addition is finished, and then conducting filtering and drying, so as to obtain modified glass fibers; and (5) mixing the modified glass fibers with polylactic acid particles, and then subjecting the resulting mixture to melt extrusion, so as to obtain a polylactic acid composite material. In the present invention, by compounding modified bioactive glass fibers with a polylactic acid material, the mechanical strength of the composite material can be significantly improved.

This invention discloses an environmentally friendly multifunctional stainless steel cleaning agent and its preparation method, belonging to the technical field of stainless steel surface cleaning materials. The method involves grinding diatomaceous earth into powder, drying it, calcining it, cooling it, and then sieving it to obtain diatomaceous earth powder. The diatomaceous earth powder, a portion of water, polyacrylic acid, polyvinyl alcohol, polydimethylsiloxane, and silica are mixed and then ball-milled to obtain a ball mill slurry. The ball mill slurry, fatty amine polyoxyethylene ether, lauric acid diethanolamide, and glycolic acid are added to a reaction vessel, heated and stirred, and then cooled to obtain mixture A. Carboxymethyl cellulose, sodium tripolyphosphate, calcium lignosulfonate, glycerol phospholipids, and the remaining water are added to mixture A, heated and stirred, and then cooled to obtain the environmentally friendly multifunctional stainless steel cleaning agent. This cleaning agent is water-based and does not contain strong acids, strong alkalis, or other chemicals, avoiding secondary corrosion of stainless steel. The preparation method is simple and suitable for mass production.

The invention discloses a high-shading low-contrast reddish brown colored drawing porcelain glaze and a preparation method thereof, and belongs to the technical field of inorganic non-metallic materials. The porcelain glaze is prepared from the following components in percentage by mass: 18 to 25 percent of quartz, 25 to 40 percent of feldspar, 4 to 6 percent of calcite, 10 to 20 percent of kaolin, 8 to 12 percent of iron-rich clay, 0.3 to 0.8 percent of sodium carboxymethyl cellulose and 0.1 to 0.3 percent of sodium tripolyphosphate. The preparation method comprises the following steps: carrying out wet ball milling on a glaze raw material to prepare glaze slip, and controlling the specific gravity to be 1.40-1.50 g / cm < 3 >; applying to a glaze blank to form a glaze layer with the thickness of 0.2-0.5 mm; and sintering by keeping the temperature of 1150-1190 DEG C in an oxidizing atmosphere for 40-60 minutes. Through specific component design and application of the non-presintered iron-rich clay, in combination with optimized glaze slip performance and firing system, directional diffusion of iron ions and precipitation of alphaFe2O3 microcrystals are effectively promoted, and a reddish brown colored drawing effect with natural color transition, strong rendering feeling and low contrast is obtained; the technical problem that traditional reddish brown colored drawing is fuzzy in boundary and uncontrollable in shading is solved, and the product is high in artistic expressive force and good in process repeatability.

The invention provides a method for controlling the apparent density of food sodium tripolyphosphate. According to the method, sodium hydroxide, sodium carbonate and food phosphoric acid are subjected to a neutralization reaction to control the apparent density of sodium tripolyphosphate. And the neutralization temperature is controlled to be 85-110 DEG C in a steam direct heating manner. The amount of carbon dioxide gas generated by reaction of sodium carbonate and phosphoric acid in the reaction slurry is controlled by controlling the neutralization temperature, so that the apparent density of the final food sodium tripolyphosphate powder is controlled. By accurately controlling the neutralization temperature in a specific interval, the food sodium tripolyphosphate with different apparent density ranges can be stably prepared, and the diversified requirements of different customers on the apparent density of the product are met. Compared with a traditional method, the market suitability of the product can be remarkably improved, and the application scene of the product is expanded.

The invention provides a soil remediation agent as well as a preparation method and application thereof, and relates to the technical field of soil remediation. The soil remediation agent disclosed by the invention is prepared from 15 to 20 parts of a microbial agent, 20 to 25 parts of humic acid, 15 to 20 parts of fulvic acid, 5 to 10 parts of a soybean meal extract, 1 to 1.5 parts of a seaweed extract and 20 to 25 parts of a plant extract, wherein the microbial agent comprises an inner core composed of straw biochar and a compound bacteria solution, and a shell formed by methoxypolyethylene glycol modified chitosan, sodium caseinate and sodium tripolyphosphate; the composite bacterial liquid comprises a bacillus thuringiensis bacterial liquid and a beauveria bassiana bacterial liquid in a volume ratio of 10: (5-8). The soil remediation agent can improve the soil structure, relieve acidification and hardening, effectively resist diseases for a long time, fundamentally improve the physicochemical properties and micro-ecological environment of the ginger continuous cropping soil, and realize comprehensive remediation.

The invention discloses a pet hair-removing composition containing jerusalem artichoke synanthrin and application of the pet hair-removing composition. Comprising 2-6 parts of jerusalem artichoke synanthrin, 5-10 parts of rhizoma sparganii, 10-20 parts of medicinal jujube, 10-20 parts of medicinal pawpaw and 10-20 parts of euonymus bungeanus. Uniformly mixing chicken oil, olive oil and distilled water; stirring while heating, and homogenizing and emulsifying to obtain a first mixed solution; the rhizoma sparganii, the medicinal jujubes, the medicinal papayas and the euonymus bungeanus are crushed and sieved, mixed powder is obtained, jerusalem artichoke synanthrin, the mixed powder, sodium tripolyphosphate, chicken powder, chicken liver powder, sweet potato starch and the remaining distilled water are added into the first mixed solution, the mixture is stirred to be uniform, and homogenizing emulsification is conducted to obtain the pet hair melting paste. The jerusalem artichoke synanthrin is combined with the traditional Chinese medicines rhizoma sparganii, medicinal jujube, medicinal papaya and euonymus bungeanus for use, so that the intestinal tract movement of pets can be accelerated, the problems of diarrhea, constipation and the like cannot be caused, pet hair is promoted to be discharged out of a body, and the components are safe and can be used for a long time.

The invention discloses a low-creep siliceous prefabricated material and a preparation method thereof, and relates to the technical field of unshaped refractory materials, and the low-creep siliceous prefabricated material comprises the following components by weight: 40-50 parts of silica brick sand, 10-20 parts of calcined silica sand, 15-25 parts of silica brick powder, 1-5 parts of silica micropowder, 1-5 parts of calcium silicate cement clinker, 5-10 parts of silica sol, 1-5 parts of silicon nitride, and 0-0.5 part of a rare earth silicate solid solution. The composite water reducing agent is a mixture of sodium tripolyphosphate and a polycarboxylic acid water reducing agent, and the weight ratio of the sodium tripolyphosphate to the polycarboxylic acid water reducing agent is 2: 1. By optimizing the process ratio, the residual quartz amount and the creep rate of the siliceous prefabricated material are reduced, the long-term creep resistance of the siliceous prefabricated material under low stress is remarkably improved, and the siliceous prefabricated material with a more stable structure is provided for the high-temperature industry.

The invention discloses a preparation method of fresh tea selenium-containing areca nuts, and belongs to the technical field of areca nut processing. The preparation method comprises the following steps: mixing tea selenium powder, tween-80 and deionized water, and emulsifying to form a uniform and stable turbid liquid; slowly pouring the turbid liquid into a chitosan solution in a stirring state; then performing high-speed shearing to obtain a tea selenium powder-chitosan solution; dropwise adding the sodium tripolyphosphate solution into the tea selenium powder-chitosan solution, and after dropwise adding, continuously stirring to ensure that the crosslinking reaction is complete to obtain a microcapsule suspension; standing the microcapsule suspension at room temperature for curing, removing supernate, repeatedly centrifugally washing with deionized water, collecting wet microcapsules, and then performing spray drying to obtain tea selenium microcapsule powder with good flowability; mixing powdered sugar with the tea selenium microcapsule powder, coating the surface of the low-fiber areca catechu with the mixture, and performing surface treatment to obtain the tea selenium fresh-extracted areca catechu. The prepared areca nuts are good in taste and free of residue feeling, have the selenium-rich slow-release property and are beneficial to repair and protection of the oral cavity.

The invention relates to the technical field of nano-drug delivery systems, in particular to an oleuropein-loaded core-shell structure drug delivery system as well as a preparation method and application thereof. The invention relates to an oleuropein-loaded core-shell structure drug delivery system, which comprises an inner core and an outer shell, the inner core is an oleuropein nanoparticle formed by self-assembly of oleuropein; the oleuropein nanoparticles are cross-linked and modified with sodium tripolyphosphate and covalently connected with folic acid; the shell is formed from ferulic acid derived lignin. According to the scheme, efficient targeted delivery and collaborative treatment of the oleuropein in treatment of sepsis-related intestinal dysfunction are achieved, the technical problems that when the oleuropein is applied to treatment of sepsis, the drug targeting property is not high, the bioavailability is not ideal, and target site release cannot be achieved can be solved, and the application of the oleuropein to treatment of the sepsis is promoted. The invention opens up a new way for developing a novel efficient targeting drug delivery system, provides an innovative strategy for clinical conversion of natural products, and has ideal application and popularization values.

The invention discloses a method for preparing a phosphorylated salmon collagen peptide-calcium chelate by taking salmon collagen peptide as a raw material, preparing high-calcium binding active peptide (P-CP) through phosphorylation modification and chelating the high-calcium binding active peptide with calcium ions. The method comprises the following steps: (1) enzymolysis preparation of salmon bone collagen; (2) phosphorylation modification of a peptide fragment mediated by sodium tripolyphosphate; and (3) optimizing a calcium ion chelation process. The chelating rate of the obtained P-CP-Ca calcium reaches 91.21%, and structural characterization proves that a phosphate group (PO4 < 2->) is combined with calcium ions through ionic bonds. Animal experiments show that P-CP-Ca can significantly improve the serum calcium level of a calcium-deficiency mouse (the H group recovers to a normal range), reduce the activity of a bone resorption marker TRAP (Target Related Amplified Protein) (which is 25.4% lower than that of a model group), and improve the bone trabecula microstructure (the bone mineral density is improved by 32.7%). The invention provides a new technology for valuable utilization of fishery by-products and development of functional calcium supplements.

The application relates to the technical field of building ceramics, and discloses a kind of building ceramics enhanced by hierarchical waste porcelain powder and a preparation method thereof, raw materials of the building ceramics include base material raw materials and glaze; base material raw materials include body basic raw materials and waste porcelain powder; waste porcelain powder includes fine particle reaction material with a particle size of 0.05-0.15 mm and coarse particle decoration material with a particle size of 0.425-0.85 mm; by first wet ball milling, spray granulation of fine particle reaction material, coconut oil, sodium tripolyphosphate, body basic raw materials and polyvinyl alcohol to obtain body powder, then stirring and mixing the body powder with coarse particle decoration material, glycerol to obtain base material raw materials, followed by pressing forming, glaze application and firing to obtain building ceramics. The application improves dispersibility and interfacial bonding by functional classification and targeted process optimization of waste porcelain powder, and the fired ceramics not only has high strength, but also naturally presents spot or star point decorative texture.

The application relates to the technical field of food processing. The application discloses sweet and spicy chicken clavicles and a processing technology thereof. The processing technology comprises the following steps: S1, freezing chicken clavicles are subjected to thawing treatment to obtain pretreated chicken clavicles; S2, the pretreated chicken clavicles are placed into a pickling solution and soaked for pickling; S3, the chicken clavicles after pickling in step S2 are subjected to water boiling treatment to shape the chicken clavicles; S4, brine is prepared, the prepared brine is boiled to 95-100 DEG C, the chicken clavicles after water boiling in step S3 are placed into the brine, and the chicken clavicles are subjected to brining for 20-40 min, then the chicken clavicles are taken out and drained to obtain sweet and spicy chicken clavicles; wherein the pickling solution comprises Chinese date juice, rennet, yeast extract, tannic acid extract, sodium tripolyphosphate, sodium bicarbonate, sodium citrate, sodium carbonate, edible salt and water. The sweet and spicy chicken clavicles are prepared by the above processing technology. The sweet and spicy chicken clavicles prepared by the application have a complete appearance and good meat quality.

This invention discloses a chitosan-Chlamydomonas reinhardtii protein composite carrier, its preparation method, and its application. The composite carrier has a triple network structure, comprising: a three-dimensional network backbone formed by cross-linking chitosan and sodium tripolyphosphate, constituting the first network; a functional enhancing phase, including Chlamydomonas reinhardtii protein, which is embedded and anchored in the three-dimensional network backbone through a first physical interaction, constituting the second network, thereby forming a chitosan-Chlamydomonas reinhardtii protein complex with an interpenetrating network structure; and a structure-directing agent, including a hydrophobic active substance, which self-assembles and embeds into the hydrophobic microregions of the chitosan-Chlamydomonas reinhardtii protein complex through a second physical interaction, constituting the third network. The composite carrier provided by this invention is prepared using electrospinning technology, achieving high loading capacity and high encapsulation efficiency, constructing a multi-layered antioxidant defense network, and can serve as a highly efficient and stable multifunctional carrier for the preparation of functional food delivery materials.

The purpose of this invention is to provide a method for preparing highly dispersible calcium carbonate based on direct mineralization of calcium carbide slag, belonging to the field of highly dispersible calcium carbonate production technology. The method includes a first-stage activation process: calcium carbide slag, sodium tripolyphosphate, sodium oleate, and water are mixed to form a slurry, and CO2 is introduced to carbonize the slurry, achieving initial dispersion of calcium carbonate. A second-stage activation process involves adding stearate to the mineralized carbonized slurry for in-situ activation. Finally, the slurry is filtered and dried to obtain the highly dispersible calcium carbonate product. The advantages of this invention are that the synergistic effect between the two-stage activation processes inhibits the agglomeration of calcium carbonate particles, and the process and equipment are simple, highly practical, and easy to industrialize.

The invention relates to a high-strength wear-resistant refractory castable and a preparation method thereof. According to the technical scheme, alpha-activated aluminum oxide micro powder, silicon carbide micro powder, silicon dioxide micro powder and white corundum micro powder are added into a ball milling tank to be subjected to ball milling and screened, and premixed powder with the particle size smaller than 45 micrometers is obtained; the preparation method comprises the following steps: carrying out ball milling on sodium tripolyphosphate, sodium hexametaphosphate, FDN, lithium chloride micro powder and aluminate cement to obtain premixed cement; the preparation method comprises the following steps: adding alumina particles with the particle size of 3-5mm, alumina particles with the particle size of 1-3mm and alumina particles with the particle size of less than 1mm into a stirring pot, and carrying out dry mixing to obtain the premixed aggregate. Adding the premixed cement and the premixed powder into the premixed aggregate, then adding steel fibers, and continuously performing dry mixing to obtain the high-strength wear-resistant refractory castable. The high-strength wear-resistant refractory castable prepared by the invention has the characteristics of high compression strength, excellent high-temperature wear resistance, high medium-temperature strength and controllable hydration process.

The invention discloses a low-shading high-contrast reddish brown colored drawing porcelain glaze and a preparation method thereof, and belongs to the technical field of inorganic non-metallic materials. The porcelain glaze comprises the following components in percentage by mass: 20%-30% of quartz, 20%-35% of feldspar, 8%-15% of calcite, 15%-25% of kaolin, 15%-25% of pre-sintered iron-rich clay, 0.5%-1.0% of sodium carboxymethyl cellulose and 0.2%-0.5% of sodium tripolyphosphate. Wherein the pre-sintered iron-rich clay is prepared by pre-sintering natural iron-rich clay at 700-900 DEG C, and the content of Fe2O3 is 5%-8%. The preparation method comprises the following steps: pre-sintering the iron-rich clay, mixing the pre-sintered iron-rich clay with other glaze raw materials, carrying out ball milling to obtain glaze slip, applying the glaze slip to a glaze blank, preheating, and carrying out heat preservation sintering in an oxidizing atmosphere of 1180-1220 DEG C. The iron element crystal form is stabilized through pre-sintering treatment, a specific glaze formula and an optimized sintering system are combined, anorthite microcrystals which are decomposed and promoted by calcite are used for wrapping alpha-Fe2O3 colored particles, iron ion migration is effectively inhibited, the technical problems that traditional reddish brown colored drawing patterns are blurred, and boundaries are blurred are solved, and the service life of the reddish brown colored drawing is prolonged. And the high-quality colored drawing porcelain with bright and saturated color, high contrast ratio and clear pattern is obtained.

The invention belongs to the field of alumina ceramic fiber refractory materials, and particularly relates to an alumina ceramic fiber product inorganic repairing material and a preparation method thereof. The composite material comprises washed cotton fibers, aluminum oxide, white carbon black, talcum powder, zirconium oxide, boron nitride, sodium hexametaphosphate and an inorganic binder, and the inorganic binder comprises clay mineral powder and thixotropic colloid formed by a silica sol aqueous solution and sodium tripolyphosphate. According to the technical scheme provided by the invention, an inorganic clay raw material is used as a normal-temperature binder, and sodium tripolyphosphate and alkaline silica sol composite colloid are used for replacing inorganic glue of methyl cellulose and a single silica sol aqueous solution, so that on one hand, the phenomena of organic substance volatilization and surface carbonization blackening of the organic binder during low-temperature sintering after repairing can be avoided; and more importantly, the hardness of the sintered repairing material is very close to that of a matrix, so that the phenomena of layering of the repairing material and a product, pulverization and peeling after sintering caused by material hardness difference are avoided.

The invention provides chitosan gynecological antibacterial gel as well as a preparation method and application of the chitosan gynecological antibacterial gel. The chitosan / matrine / resveratrol sustained-release preparation is prepared from the following raw materials in parts by weight: 0.5 to 1.5 parts of chitosan / matrine / resveratrol graft copolymer, 0.5 to 1.0 part of nano zinc / lactobacillus plantarum fermentation metabolite / sodium alginate composite microspheres, 0.15 to 0.30 part of sodium tripolyphosphate, 1.5 to 2.5 parts of carbomer, 0.05 to 0.15 part of disodium ethylene diamine tetraacetate, 0.05 to 0.15 part of lactic acid, 1.5 to 2.5 parts of propylene glycol, 1.5 to 2.5 parts of glycerol and 0.2 to 0.6 part of allantoin. The cleaning agent is prepared from the following components in parts by weight: 0.05 to 0.25 part of ethylhexylglycerin, 0.15 to 0.35 part of triethanolamine and 80 to 100 parts of deionized water. All the components in the composition have a synergistic effect, so that the comprehensive technical effects of antibiosis, micro-ecological balance adjustment and mucous membrane protection are achieved.