494results about How to "Promote hydration" patented technology

The invention discloses activated regenerated micro-powder as well as a preparation method and application thereof, and belongs to the technical field of waste concrete regenerated micro-powder. The activated regenerated micro-powder provided by the invention is prepared by the following steps: crushing waste concrete, carrying out ball milling, screening to obtain initial regenerated micro-powder with the particle size of less than 150 microns, adding the initial regenerated micro-powder into a carbon dioxide absorption solvent, and mixing to obtain regenerated micro-powder slurry; and heating the regenerated micro-powder slurry to 45-65 DEG C, introducing CO2 into the regenerated micro-powder slurry to carry out wet mineralization treatment, and carrying out suction filtration and drying to obtain the regenerated micro-powder. The preparation method of the regenerated micro powder provided by the invention is simple, not only is full utilization of active calcium and magnesium components in the waste concrete powder realized, but also permanent fixation and storage of carbon dioxide are effectively realized, the actual apparent carbon sequestration amount reaches 33-39%, the maximum mineralization efficiency can reach 94.41%, and the regenerated micro powder can be recycled. The method has a good promotion effect on protecting the ecological environment and promoting the development of circular economy.

The invention provides an ardealite road base material and a preparation method thereof, and belongs to the field of road base materials. The road base material is prepared from the following raw materials in parts by weight: 850 to 900 parts of phosphogypsum, 5 to 15 parts of quick lime, 40 to 60 parts of cement, 55 to 85 parts of composite curing agent and 8.5 to 13 parts of curing exciting agent. The phosphogypsum is modified, so that soluble phosphorus and soluble fluorine in the phosphogypsum are cured; the curing exciting agent is atomized and added into the mixture of the modified phosphogypsum, the cement and the composite curing agent, so that all the components are in full contact, the hydration effect is promoted, and the strength and stability of the base material are improved. The pavement base material provided by the invention consumes a large amount of phosphogypsum, can effectively relieve the problem of accumulation of a large amount of phosphogypsum, reduces environmental pollution, has good mechanical properties, water stability and durability, is applied to highway construction, and has important environmental protection significance and social benefits.

The invention discloses a magnesium-based cobalt precipitation agent and a preparation method and application thereof, and relates to the technical field of composite materials. The method comprises the following steps: performing calcination dissociation, enhanced leaching, carbonization separation, efficient pyrolysis, solid-liquid separation, drying and calcination on first magnesium ore to obtain active magnesium oxide; the second magnesium ore is subjected to calcination dissociation, hydration impurity removal, solid-liquid separation and low-temperature calcination, and then high-purity magnesium oxide is obtained; performing series-parallel modification on active magnesium oxide and high-purity magnesium oxide to obtain a magnesium-based cobalt precipitation agent; the mass ratio of the active magnesium oxide to the high-purity magnesium oxide is 1: (2-10), the modifier is quaternary ammonium salt organic powder, and the addition amount of the modifier is 0.02-1% of the total mass of the magnesium oxide. The magnesium-based cobalt precipitation agent prepared through the method is high in activity, has the advantages of being high in efficiency, low in price, low in unit consumption, environmentally friendly and the like in the aspect of nickel and cobalt precipitation through copper-cobalt ore and laterite-nickel ore wet smelting, and can greatly reduce the material cost in the nickel cobalt hydroxide production process.

The invention provides a mining inorganic environment-friendly reinforcing material and application thereof, and belongs to the technical field of mining reinforcing materials. A component A comprises the following components in parts by mass: 60-80 parts of anhydrite, 5-20 parts of lime, 5-10 parts of silica fume, 2-8 parts of sodium silicate, 1-0.5 part of a naphthalene water reducer, 3-7 parts of an early strength agent and 0.2-0.8 part of lithium salt; the component B comprises the following components in parts by mass: 50-70 parts of cement clinker, 10-30 parts of slag cement, 5-10 parts of iron powder, 1-8 parts of aluminum sulfate, 5-10 parts of calcium carbonate and 0.5-1 part of sodium tripolyphosphate; the component C is prepared from the following components in parts by mass: 10 to 25 parts of water glass, 10 to 20 parts of emulsion, 40 to 60 parts of water, 5 to 10 parts of high-efficiency water reducing agent and 1 to 5 parts of triethanolamine. The mining inorganic environment-friendly reinforcing material provided by the invention is low in reaction heat and is not easy to cause coal combustion.

The invention belongs to the technical field of concrete crack repairing materials, particularly relates to a geopolymer self-repairing microcapsule, and also relates to a preparation method and application of the geopolymer self-repairing microcapsule. The geopolymer self-repairing microcapsule is prepared from the following raw materials: acrylic acid, sodium hydroxide, zeolite, an initiator, a cross-linking agent, a capsule wall material, an emulsifier, an organic solvent and a dispersing agent. When cracks exist, the super absorbent resin can release water, the cracks in the geopolymer continue to be hydrated, the cracks are repaired, interface bonding is tighter through the repairing mode, and the interfaces are not prone to cracking when bearing loads again.

The invention discloses a catalyst layer for a fuel cell and a preparation method thereof, the catalyst layer comprises an anode catalyst and a cathode catalyst, the anode catalyst layer comprises a Pt-C catalyst, high dielectric micromolecular alcohol, sulfonated lignin doped conductive polymer nanoparticles, a hydrophilic adhesive, an ionomer solution and deionized water; the cathode catalyst layer comprises a catalyst, an ionomer solution, high-dielectric micromolecular alcohol, polytetrafluoroethylene and deionized water; the technical problems that an existing catalyst layer for a fuel cell is poor in water management effect, and an adopted water management material is poor in conductivity can be solved. The preparation method is simple and convenient, and the preparation difficulty and the operation difficulty of operators are greatly reduced.

The invention relates to the technical field of concrete preparation, in particular to moisturizing anti-cracking high-ductility concrete and a preparation method thereof. The moisturizing anti-cracking high-ductility concrete is prepared from the following components: 350 to 450 parts of ordinary Portland cement, 200 to 300 parts of fly ash, 30 to 50 parts of silica fume, 250 to 350 parts of quartz sand, 0.5 to 1 part of a water reducing agent, 10 to 20 parts of an expanding agent, 0.1 to 0.3 part of a retarder, 0.5 to 1 part of a thixotropic lubricant, 0.2 to 0.7 part of a modified nano material, 0.7 to 3 parts of a modified composite curing agent, 5 to 10 parts of an anti-cracking agent, 5 to 12 parts of polymer fiber and 180 to 220 parts of water. The high-moisture-retention high-water-retention concrete has the characteristics of high moisture retention and high water retention, is beneficial to maintaining the internal humidity balance, reducing cracks generated by drying shrinkage, improving the durability of the concrete, and remarkably reducing the cracking risk of the concrete in the hardening process, so that the concrete structure is more complete, the safety of the structure is improved, and the service life of the structure is prolonged.

The invention discloses a high-impermeability curing agent for sandy soil and a preparation method, the high-impermeability curing agent comprises the following components by mass: 30-50 parts of a solid waste-based sulfur aluminum iron series cementing material; 10 to 30 parts of slag powder; 5-30 parts of ordinary Portland cement; 5-20 parts of desulfurized gypsum; and 1-10 parts of silica fume. A curing agent system further strengthens the hydration effect and the cementing performance of the cementing material, and a formed crystal-colloid composite hydration product system contributes to the stable and compact microstructure of the cured sandy soil, so that the impermeability and the mechanical property of the sandy soil can be greatly improved; the comprehensive application of solid waste raw materials such as desulfurized gypsum and mineral powder is realized, and the stacking cost of solid wastes and the influence on the environment are reduced.

The invention relates to the technical field of cement-based pavement patching materials, and particularly discloses an aluminoferrite cement-based concrete pavement patching material as well as a preparation method and application thereof. The repairing material is prepared from the following raw material components in parts by weight: 25 to 45 parts of iron aluminate cement clinker, 2 to 5 parts of Portland cement clinker, 5 to 15 parts of composite gypsum, 2 to 4 parts of calcium sulphosilicate, 2 to 4 parts of vaterite, 10 to 25 parts of mineral powder, 40 to 50 parts of fine aggregate, 0.05 to 0.25 part of triisopropanolamine or diethanolisopropanolamine, 0.75 to 1.5 parts of calcium formate and 0.5 to 1.0 part of sulfate. The strength of the repairing material can be improved in the whole age, the freeze-thaw resistance is improved, and the repairing material has good bonding strength with the pavement.

The invention discloses a camellia nitidissima flower extract-containing anti-pollution acne-sensitive skin repairing composition and application thereof, and relates to the technical field of cosmetics. The invention provides a camellia nitidissima flower extract-containing anti-pollution acne-sensitive skin repairing composition. The camellia nitidissima flower extract-containing anti-pollution acne-sensitive skin repairing composition is prepared from the following components in parts by weight: 1 to 5 parts of camellia nitidissima flower extract, 1 to 5 parts of seaweed oligosaccharide, 0.01 to 1 part of o-cymene-5-ol and 0.01 to 1 part of tocopherol retinoate. According to the anti-pollution acne-sensitive skin repairing composition containing the camellia nitidissima flower extract, four components including the camellia nitidissima flower extract, the seaweed oligosaccharide, the o-cymene-5-ol and the tocopherol retinoate in proper parts by weight are selected to cooperate with one another, so that the composition has better anti-pollution and antibacterial effects and has very good acne removing, repairing and soothing effects.

The invention discloses a low-temperature early-strength cement slurry system based on a cellulose-based composite phase change material, and belongs to the field of oil and gas field well cementation. The preparation method of the composite phase change material comprises the following steps: adding pretreated waste paper fibers, a cross-linking agent and a heat conduction material into an alkali / urea solution, and putting the mixture into an ultrasonic cleaning instrument to obtain a mixture A; transferring to a dialysis bag, and soaking in deionized water to obtain a mixture B; and performing in-situ mixing on the mixture C and organic phase change material molecules to obtain a mixture C, and performing vacuum freeze drying. The low-temperature early-strength cement slurry system is prepared from the following components in parts by weight: 100 parts of cement, 0.3-1 part of a composite phase change material, 5-25 parts of a density reducing material, 0.1-0.8 part of an early strength agent, 0.2-1 part of a dispersing agent, 0.2-2 parts of a fluid loss agent, 0.01-0.5 part of a defoaming agent and 44-58 parts of water. While cement hydration heat release is regulated and controlled, the early compressive strength of the cement can be improved, and the operation time efficiency and the construction safety are improved.

The ecological slope protection structure for water and soil conservation for water conservancy construction comprises soil retaining plates fixedly supported on slopes on the two sides of a river, planting grooves for planting green plants are formed in the soil retaining plates, a water pumping pipe is fixedly connected, and the outer contour of the water pumping pipe is sleeved with a rectangular shell moving in a reciprocating mode; the rectangular shell is fixedly connected with a spray head and a drainage pipe which is in through connection with the spray head, in addition, a salvage mechanism and a liquid pumping mechanism are further arranged on the soil retaining plate and used for cleaning floating objects on the surface of river water and pumping the river water for irrigation, and the salvage mechanism achieves salvage of the floating objects through matched action of a cylindrical roller and a filter plate; according to the ecological slope protection structure, by means of an automatic irrigation system, the utilization efficiency of water resources is improved, the soil retention capacity is enhanced, plant growth is promoted, water and soil loss is effectively prevented, and the ecological slope protection structure can be applied to the field of ecological slope protection especially under the drought condition. The ecological environment is protected and recovered.

The invention discloses a high-stability oat milk beverage and a preparation method thereof, and belongs to the technical field of grain deep processing. The preparation method of the oat milk beverage comprises the following steps: cleaning and drying oat to obtain dry oat, adding water, grinding into thick liquid, and boiling and gelatinizing to obtain gelatinized liquid; adding alpha-amylase, debranching enzyme, saccharifying enzyme and neutral protease into the gelatinized liquid, stirring, performing enzymolysis, performing enzyme deactivation, sieving, and collecting slurry; and finally homogenizing to obtain the oat milk. According to the preparation method disclosed by the invention, the stability of the oat milk is improved by optimizing process conditions and enzymes used for enzymolysis in the preparation of the oat milk, the preparation of the functional oat milk is realized by further adding functional components under the condition that the stability of the oat milk is not influenced, and the prepared oat milk can realize various effects of reducing blood sugar, resisting fatigue and the like.

The invention discloses low-carbon flow-state solidified soil for a seasonal frozen region. The low-carbon flow-state solidified soil comprises soil, a curing agent and water, the dosage of the curing agent is 15-20% of the mass of the dry soil; the water content is 40-60% of the dry mass of the soil and the curing agent; the soil comprises sludge and building residue soil, and the sludge accounts for 20-40 parts by weight, and the building residue soil accounts for 60-80 parts by weight; the curing agent is prepared from the following components in parts by weight: 40 to 60 parts of phosphogypsum, 10 to 15 parts of mixing plant waste slurry, 20 to 40 parts of steel slag, 5 to 10 parts of quick lime, 0.5 to 1.2 parts of glycerol, 0.2 to 0.6 part of hydroxypropyl methyl cellulose and 1 to 1.5 parts of water reducing agent; according to the invention, various technical problems of insufficient anti-freezing performance, unstable fluidity, long setting time, insufficient early strength, large shrinkage deformation, easy generation of segregation and bleeding and the like of the existing fluid-state solidified soil are solved, and meanwhile, more low-carbon environment-friendly raw materials are introduced, so that multi-aspect improvement of the performance of the fluid-state solidified soil and maximization of environment-friendly benefits are realized; and a more reliable and efficient solution is provided for earthwork such as foundation pit backfilling.

The invention relates to a skin-cleaning composition and application thereof in cleaning cream, and belongs to the technical field of daily chemicals, the skin-cleaning composition comprises the following raw materials: plant fermentation liquor, a chrysanthemum artemisia extract, silk amino acid, cetyl alcohol ethyl hexanoate, PEG-20 glyceryl triisostearate and soapberry seed oil; the preparation method of the plant fermentation liquid comprises the following steps: S1, pretreating part of the raw materials; s2, activating and culturing the strain; and S3, adjusting the pH value of the mixed solution A, performing temperature-controlled sterilization, cooling, adding mannase, performing temperature-controlled enzymolysis, performing enzyme deactivation after enzymolysis is completed, so as to obtain a mixed solution B, cooling, adding a lactobacillus acidophilus fermentation seed solution and a streptococcus thermophilus fermentation seed solution, performing temperature-controlled standing fermentation, performing temperature-controlled sterilization and speed-controlled centrifugation after fermentation is completed, taking supernate, and performing 0.22 mu m membrane microfiltration, so as to obtain the plant fermentation liquor. The raw materials of the skin-cleaning composition provided by the invention have a synergistic effect, so that the skin-cleaning composition has the effects of moisturizing and whitening while effectively cleaning the skin.

The invention discloses concrete with high salt corrosion resistance and a preparation method of the concrete. The concrete is prepared from 300-400 kg / m < 3 > of cement, 50-150 kg / m < 3 > of slag powder, 1000-1200 kg / m < 3 > of gravel, 650-800 kg / m < 3 > of machine-made sand, 0.5-2 kg / m < 3 > of a modified polycarboxylic acid water reducing agent, 0.005-0.01 kg / m < 3 > of an air entraining agent, 0.05-0.1 kg / m < 3 > of an ion chelating agent, 0.05-0.1 kg / m < 3 > of polyacrylamide, 0.01-0.05 kg / m < 3 > of sodium methyl silicate, 0.1-0.5 kg / m < 3 > of multiwalled carbon nanotube dispersion liquid and 140-160 kg / m < 3 > of water. The preparation method comprises the following steps: stirring and mixing the modified polycarboxylate superplasticizer, the air entraining agent, the ion chelating agent, the polyacrylamide, the sodium methyl silicate and part of the water for mixing to obtain an admixture mixed solution; sequentially putting broken stones, cement, machine-made sand, the admixture mixed solution, the multi-walled carbon nanotube dispersion liquid and the rest of mixing water into a stirrer, and stirring for 2-3 minutes, so as to obtain the concrete with high salt corrosion resistance. The concrete has high salt corrosion resistance in a complex service environment, the service life of a concrete structure is effectively prolonged, and a reliable guarantee is provided for infrastructure construction.

The invention belongs to the technical field of seedling raising substrates, and particularly relates to a seedling raising substrate based on straw and cow dung and a preparation method thereof.The seedling raising substrate based on straw and cow dung is prepared from, by weight, 20-40 parts of dry cow dung, 20-40 parts of straw segments, 10-20 parts of ferroferric oxide composite water-absorbent resin, 6-8 parts of EM bacteria and 40-60 parts of field soil. The preparation method comprises the following steps: grafting a silane coupling agent on the surface of ferroferric oxide, then carrying out polymerization reaction on the surface of the ferroferric oxide grafted with the silane coupling agent and acrylic acid to generate ferroferric oxide-sodium polyacrylate particles, and the ferroferric oxide-sodium polyacrylate particles are magnetic particles. And the surfaces of the ferroferric oxide-sodium polyacrylate particles have abundant carboxyl (-COOH) and sodium carboxylate (-COONa) functional groups. The functional groups can form hydrogen bonds or ionic bonds with water molecules, so that the hydrophilicity and water absorption of the surfaces of the particles are improved.

The invention relates to the technical field of slag cement-based materials, and particularly discloses an early-strength low-carbon slag cement-based material as well as a preparation method and application thereof. The cement-based material comprises the following components in parts by weight: 60-80 parts of slag powder, 15-30 parts of gypsum powder, 3-10 parts of cement, 1-5 parts of a hydration accelerator and mixing water. The hydration accelerant is prepared from hydroxyl copper iodate and aluminum dihydrogen phosphate according to the mass ratio of (0.08-0.13): 1. The ratio of the mixing water to the total mass of the slag, the gypsum and the cement is (0.4-0.6): 1. According to the low-carbon slag cement disclosed by the invention, the hydration accelerator consisting of the hydroxyl copper iodate and the aluminum dihydrogen phosphate effectively promotes the early hydration degree of the low-carbon slag cement, so that the early strength is improved, and meanwhile, the middle and later strength of the cement cannot be obviously reduced.

The invention relates to the technical field of building materials, in particular to a light anti-corrosion cement-based prefabricated part as well as a preparation method and application thereof. The cement-based prefabricated part is prefabricated and formed by bonding a base body located on the inner layer of the cement-based prefabricated part and a surface material located on the peripheral layer of the cement-based prefabricated part through an adhesive and performing microwave heating. Wherein the surface material is prepared from filler, modified stone powder, cement and the like through colloid mill shearing treatment and filter pressing treatment; the matrix is prepared by mixing a foaming agent, mineral powder, sodium hydroxide, metakaolin, aggregate, polypropylene fiber, calcium lignosulphonate and the like, putting into a mold, performing steam curing and demolding. The outer surface of the base body is coated with an adhesive, and the surface material and the base body are combined in a vibration extrusion forming mode and then subjected to microwave heating treatment to be manufactured into the cement-based prefabricated part. The cement-based prefabricated part is high in salt resistance, freezing resistance and acid resistance, light in weight and suitable for being used as a building material in a cold region, including curbs.

The invention relates to the field of concrete materials, in particular to a high-strength impermeable concrete and a cement pole, which comprises, by weight, 500-600 parts of gel material, 1400-1600 parts of aggregate, 100-120 parts of epoxy resin emulsion, 20-30 parts of hydroxy acrylate emulsion, 5-10 parts of aliphatic organic amine, 50-80 parts of epoxy basalt fiber, 5-10 parts of calcium sulfoaluminate, 10-20 parts of ethanolamine-modified metakaolin, 1-5 parts of polycarboxylate water reducer and 100-120 parts of mixing water. The high-strength impermeable concrete prepared by the invention has excellent mechanical strength and excellent waterproof and impermeability performance.

The invention provides an adsorption type crystal nucleus early strength agent and a preparation method thereof, and belongs to the field of concrete admixtures, and the preparation method comprises the following steps: 1, dissolving an adsorbent in a solvent according to a set proportion, and then adding an auxiliary agent under the condition of heating and stirring to form a uniform solution A; 2, putting nano silicon dioxide into a dispersing agent, and performing ultrasonic treatment to obtain a reaction base solution; 3, heating and stirring the reaction base solution, dropwise adding the solution A, and adjusting the pH value to 4-6 in the dropwise adding process; after the solution A is dropwise added, a coupling agent is added for continuous reaction, and the adsorption type crystal nucleus early strength agent is obtained.The adsorption type crystal nucleus early strength agent can accelerate the cement hydration rate and improve the early strength of a Portland cement system and has good stability.

The invention discloses a springback inhibitor for sprayed concrete as well as a preparation method and application of the springback inhibitor. The rebound inhibitor is prepared from the following components in percentage by mass: 2-5% of magnesium aluminum silicate, 19.8-29.8% of silica fume, 1-4% of a macromolecular tackifier, 2-5% of aluminum sulfate slag powder, 38-51% of superfine stone powder, 9-16% of fly ash microspheres, 1-2% of a water reducing agent, 2-3% of redispersible milk powder, 2-5% of inorganic mineral fibers and 0.01-0.2% of modified plant fibers. The springback inhibitor disclosed by the invention has a remarkable effect on reducing the springback rate of the sprayed concrete, and can enhance the water dispersibility resistance of the sprayed concrete and improve the cohesiveness of the sprayed concrete. The preparation method disclosed by the invention is simple in industry and easy for large-scale production.

The invention provides a zwitterionic cross-linking agent, a copolymer flow pattern regulator and a preparation method and application of the zwitterionic cross-linking agent and the copolymer flow pattern regulator. The preparation method comprises the following steps: preparing a polycarboxyl zwitterionic cross-linking agent, and carrying out polymerization reaction on an acrylamide monomer, a sulfonic monomer, alkyl methacrylate and the zwitterionic cross-linking agent to obtain the copolymer flow pattern regulator. The copolymer flow pattern conditioning agent provided by the invention is a hydrophobic cross-linked high-temperature-resistant flow pattern conditioning agent, the temperature resistance can reach 240 DEG C, the NaCl salt resistant concentration is up to 15%, the viscosity retention rate is 80% or above, and the copolymer flow pattern conditioning agent has excellent rheological property after high-temperature aging and has wide application prospects in the field of high-temperature-resistant water-based drilling fluids.

The invention relates to cream-to-powder oil-control makeup-fixing cream. The cream is prepared from the following raw materials: silica powder, polydimethylsiloxane, a filling agent, a thickening agent, a skin conditioner, petrolatum and microcrystalline wax. The method has the characteristic of unique texture conversion. At a low temperature, because the components comprise petrolatum and microcrystalline wax, the product is kept in a pasty state, and is soft, glutinous and moist when being touched; when the makeup fixing cream is smeared to make contact with the skin, the makeup fixing cream product is heated through the temperature of the skin, petrolatum and microcrystalline wax in the makeup fixing cream product are melted and softened, meanwhile silica starts to absorb grease and form a powdery covering layer, and then the makeup fixing cream is smeared on the surface of the skin continuously in a looping mode and can be converted into fine powder magically. Due to the texture conversion characteristic, the make-up paste has the moistening and fitness of paste and the refreshing and oil control of powder. When in use, the powder can be smoothly smeared like a paste product, and has the refreshing makeup feeling of loose powder, so that the advantages of the two textures are combined.

The invention relates to a composite gel for treating skin aging by using PLLA, CMC and hyaluronic acid. The composite gel is prepared from the following raw materials: 300 to 310 mg of PLLA microspheres for injection, 50 mg of CMC, 35 to 40 mg of hyaluronic acid and 5 to 8 ml of normal saline. The invention also relates to a preparation method of the composite gel for treating skin aging by using PLLA, CMC and hyaluronic acid. The PLLA microspheres and the hyaluronic acid are combined for use, respective advantages can be exerted, and the PLLA microspheres can provide lasting stimulation and promote an organism to continuously generate collagen; and hyaluronic acid can immediately improve the moisture degree and plumpness of the skin. The combination of the collagen and the collagen has the effects of integrating multiple effects, enhancing aging resistance and improving skin quality, and fundamentally solves the problem of skin aging caused by loss of collagen.

The present invention discloses a composition with a penetration-promoting effect and a preparation method thereof, wherein the composition with a penetration-promoting effect comprises a solvent, a phase A moisturizer, a phase B moisturizer, a phase C moisturizer, a pH regulator, a thickener, a solubilizing agent, a skin conditioner, and a plant extract; wherein the skin conditioner is a compound of a bifid yeast fermentation product filtrate, decarboxylated carnosine hydrochloride, a yeast fermentation product extract, and ergothioneine; wherein the plant extract comprises an baobab seed extract, an echinacea extract, and a wood apple extract. A preparation method of a composition with a penetration-promoting effect is to uniformly stir the components of the composition with a penetration-promoting effect to obtain a composition with a penetration-promoting effect. The present application has the effect of significantly improving skin permeability, promoting effective moisturizing ingredients to penetrate into the stratum corneum of the skin, replenishing moisture for the skin from an endogenous source, and lastingly moisturizing.

The invention discloses a microorganism mineralization induced flood prevention preparation stone and a preparation method thereof. The microorganism mineralization induced flood prevention preparation stone is prepared from the following raw materials: a microorganism mineralization repairing agent, aluminum oxide, slag powder, silt, microorganism cementing liquid and steel fibers. The preparation method comprises the following steps: preparing the microbial mineralization repairing agent and the microbial cementing liquid, mixing the microbial mineralization repairing agent with alumina, adding the slag powder, stirring to obtain a composite gel material, mixing the composite gel material, the silt and the slag powder according to a preset ratio, adding the microbial cementing liquid to obtain mixed slurry, slowly adding the steel fibers into the mixed slurry, and stirring to obtain the composite gel material. And curing and demolding to obtain a sample, and curing to prepare the flood prevention preparation stone. The silt is used as a main raw material, microorganisms are added to accelerate mineralization and accelerate hydration of carbon dioxide, deconstruction and reunion of an active material are achieved, the pH value of a microorganism growth environment is reduced through aluminum oxide, microorganism adsorption sites are provided, and the corrosion resistance and strength of the stone are improved through the synergistic effect of aluminum oxide and steel fibers.

The invention discloses active magnesium oxide and a preparation method thereof, and relates to the technical field of magnesium oxide preparation. The method comprises the following steps that first magnesium ore is subjected to calcination dissociation, enhanced leaching and carbonization separation, and then calcium carbonate and an active low-calcium magnesium-rich solution are obtained; carrying out calcining dissociation and mechanical fine grinding on the second magnesium ore to obtain a fine material, or directly carrying out mechanical fine grinding on the second magnesium ore to obtain the fine material; the active low-calcium magnesium-rich liquid is pumped into a hydration activation tank, stirring is started, then the fine material is conveyed to the hydration activation tank, the active low-calcium magnesium-rich liquid and the fine material are subjected to a hydration reaction, and composite magnesium salt is formed; and drying and scattering the composite magnesium salt, conveying to a calcining furnace, calcining, cooling and spirally discharging to obtain the active magnesium oxide. The magnesium oxide prepared by the method is moderate in density, rich in active sites and good in dispersity, has excellent adsorption, hydration and ionization properties, has remarkable effect and cost advantages as an alkaline precipitator, and is beneficial to market popularization and application of high-activity magnesium oxide products in the fields of environmental protection and metallurgy.

The invention belongs to the field of daily chemicals, and discloses a penetration enhancing composition which comprises betaine and isosorbide dimethyl ether, the weight ratio of the betaine to the isosorbide dimethyl ether is (20-30): (15-25). The composition is more excellent in permeation enhancing effect, and the combined permeation enhancing mechanism of the composition is that the isosorbide dimethyl ether can temporarily open lipids between adjacent cells by influencing lipids of a stable structure between keratinocytes, and meanwhile, a hydrophilic part in the structure can conveniently help permeation of water-soluble effective components, so that the combined permeation enhancing effect of the composition is improved. Therefore, the absorption effect of the skin is improved. The betaine effectively increases the skin hydration degree, and when the skin water content is increased, membrane pores are enlarged, the tissue tightness is reduced, and the permeation and absorption of active ingredients are increased. Meanwhile, the invention further discloses application of the composition and cosmetics.

The invention discloses an early-strength polycarboxylate superplasticizer with thickening and water-retaining properties and a preparation method thereof, and relates to the technical field of building materials. The early-strength polycarboxylate superplasticizer is prepared from the following components in parts by weight through free radical copolymerization and condensation polymerization: 360 parts of polyether monomer, 20-40 parts of unsaturated carboxylic acid, 0.1-0.5 part of hydrophobic monomer, 1-30 parts of functional additive, 0.5-3 parts of oxidant, 0.1-1 part of reducing agent, 0.5-2 parts of chain transfer agent and 270-460 parts of water. The invention also provides a preparation method of the water reducing agent. By adjusting the structure of the polycarboxylic acid water reducing agent and grafting functional groups with bonding capacity and early strength function, the water reducing agent which is good in application performance and high in water reducing rate is prepared, and the water reducing agent can remarkably improve the wrapping property of concrete, reduce the bleeding property of the concrete and improve the early strength of the concrete.