994 results about "Kaolin clay" patented technology

The invention relates to the technical field of cables, and particularly discloses a high-performance halogen-free flame-retardant flexible power cable. The high-performance halogen-free flame-retardant flexible power cable comprises a core layer, an insulating layer, a flame-retardant layer, a shielding layer and a protective layer which are arranged in sequence, the flame-retardant layer is prepared from the following raw material components in parts by weight: 30 to 40 parts of ethylene-vinyl acetate copolymer, 10 to 20 parts of polyolefin elastomer, 8 to 10 parts of microencapsulated ammonium polyphosphate, 2.5 to 4.5 parts of pentaerythritol, 20 to 30 parts of inorganic flame retardant, 5 to 8 parts of expansible graphite, 2 to 3 parts of diatomite, 0.5 to 1.5 parts of nano kaolin, 2 to 3 parts of zinc borate, 0.1 to 0.5 part of antioxidant and 0.5 to 1.0 part of lubricant. The cable provided by the invention not only has good flame retardant property, but also has certain flexibility.

The invention discloses double-layer fancy glaze with chapped ground texture and a preparation method of the double-layer fancy glaze, and relates to the technical field of ceramic glaze. The double-layer fancy glaze is composed of a ground glaze layer and a cover glaze layer. The ground glaze raw materials comprise potassium feldspar, kaolin, calcite, quartz, dolomite, zinc oxide and pigment; the cover glaze raw materials comprise potassium feldspar, waste porcelain powder, blank powder, chinastone, limestone, sepiolite, quartz, zirconium silicate with the particle size D50 being less than or equal to 1.0 mu m and pigment. The preparation method comprises the following steps: respectively carrying out ball milling to prepare ground glaze slip (32-40 baume degrees) and cover glaze slip (51-53 baume degrees); spraying ground glaze on the green body, drying, and then soaking with cover glaze; and finally, sintering at the temperature of 1250-1270 DEG C in a reducing atmosphere. Through the synergistic effect of the sepiolite and other components, the cover glaze has high surface tension, forms a microcrack network during drying, generates controllable glaze shrinkage during firing, forms a three-dimensional chap texture with crack width of 1-5mm and strong curled and raised crack edges, and meanwhile, the ground glaze completely covers a green body, so that the product practicability is ensured.

The invention discloses a coal gangue-based reinforced cement composite material and a preparation method thereof, and relates to the technical field of building materials. The coal gangue-based reinforced cement composite material is prepared from a coal gangue-based reinforced admixture, calcium ion doped modified multi-walled carbon nanotubes, polypropylene fibers, P.O42.5 Portland cement, metakaolin, silica fume, a polycarboxylate superplasticizer and water, calcium ion doped modified multi-walled carbon nanotubes and a coal gangue based reinforced admixture are cooperatively added into a cement matrix, seamless filling from nanometer to micrometer is achieved, a tough interface transition area is formed, pressure is jointly borne by a compact matrix and a strong interface, the compressive strength and breaking strength of the material are remarkably enhanced, and meanwhile, the compressive strength and breaking strength of the material are greatly improved. Migration of moisture and ions is effectively blocked, and the anti-permeability performance of the material is improved.

The invention discloses steel fiber reinforced metakaolin-based recycled concrete and a preparation method thereof, and belongs to the technical field of civil engineering materials. The concrete is prepared from the following components in percentage by mass: 60wt%-80wt% of recycled aggregate, 20wt%-40wt% of a cementing material, 0.5 wt%-1.4 wt% of steel fibers and 0.1 wt%-0.7 wt% of an additive, wherein the cementing material comprises cement and metakaolin, and the mass ratio of the metakaolin to the cement is (1-3): (7-9). A nano silicon dioxide coating is arranged on the surface of the steel fiber. The preparation method adopts a step-by-step stirring process. The problem that dynamic impact resistance and green low carbon are difficult to cooperate in the prior art is solved, through component optimization and process control, the dynamic compressive strength of the concrete is improved, the energy absorption capacity is improved, the damage mode is converted into ductility from brittleness, fiber distribution is uniform, and the concrete is suitable for impact-resistant projects such as airport runways and protective structures.

The invention provides high chloride ion permeation resistance steel fiber fine aggregate concrete and a preparation method thereof. The high chloride ion permeation resistance steel fiber fine aggregate concrete comprises the following raw materials in parts by weight: 200-300 parts of cement; 30 to 50 parts of metakaolin; 100 to 200 parts of fly ash; 50 to 100 parts of mineral powder; 1-8 parts of nano silicon dioxide; 800 to 1000 parts of sand; 800 to 1000 parts of stone; 10 to 60 parts of steel fiber; 150 to 200 parts of water; and 5-20 parts of a water reducing agent. The steel fiber fine aggregate concrete with high chloride ion permeation resistance has the advantages of improved mechanical properties and durability, extremely high chloride ion permeation resistance, excellent volume stability, low material cost, economic feasibility of large-scale application, and wide application prospect. And the strict service requirements of the urban rail transit ballast bed under the long-term dynamic load, stray current and erosion medium coupling effect are precisely met.

The invention discloses sulfate-erosion-resistant metakaolin-slag-based geopolymer concrete, belongs to the technical field of concrete, and aims to solve the problems that the corrosion resistance of traditional silicate concrete is ineffective and the adaptability of conventional alkali-activated concrete is insufficient in a special environment. The concrete comprises the following components in parts by weight: 60-90 parts of a cementing material, 120-170 parts of aggregate, 15-30 parts of a composite activator, 2-8 parts of a function regulator and the like, the cementing material is prepared from nano TiO2 / KH-550 composite modified metakaolin, slag and silica fume-coal gangue powder-HAP composite powder; the aggregate comprises modified limestone macadam (soaked and dried by a sodium dihydrogen phosphate solution) and river sand; the composite exciting agent comprises water glass, sodium hydroxide, sodium pyrophosphate, propylene glycol and the like; the function regulator comprises superfine fly ash, a naphthalene water reducer, HPMC (Hydroxy Propyl Methyl Cellulose) and boric acid. Through the synergistic effect of the components, the sulfate corrosion resistance, the mechanical property and the environmental adaptation performance of the concrete are improved, and the concrete is suitable for engineering construction under the service environment of high-concentration sulfate and the like.

The invention relates to the technical field of hydraulic concrete materials, and particularly discloses nano-modified anti-rebound full-hole slag sprayed concrete, which is prepared from the following raw materials in parts by weight: 665 parts of hole slag aggregate, 950 parts of hole slag sand, 396 to 436.5 parts of ordinary Portland cement, 225 parts of water, 10 parts of polycarboxylic acid type water reducing agent and 8.5 parts of accelerator, the hole slag aggregate is further modified by a nano admixture, and the nano admixture is composed of nano kaolin, nano silicon dioxide and a precise PCE solution. The springback-resistant shotcrete is prepared from the nano admixture modified hole slag aggregate, full-quantitative resource utilization of tunnel excavation hole slag is achieved, the problems of occupied area of piled slag and potential ecological pollution are effectively relieved, the cement consumption in the concrete is reduced, the construction cost is reduced, meanwhile, the springback rate of the shotcrete can be remarkably reduced, and the construction period is shortened. The compactness of the concrete is improved, and the compression resistance degree and the crack resistance of the concrete are enhanced.

The invention relates to the technical field of ceramic materials, in particular to a preparation method of a diatomite-based porous ceramic material and application of the diatomite-based porous ceramic material in wastewater pollutant treatment. The preparation method of the diatomite-based porous ceramic material comprises the following steps: mixing a basic raw material, a sintering aid, a pore forming agent and a binder, performing compression molding to obtain a green body, and sintering the green body, the basic raw materials comprise 80-85% of diatomite, 5-10% of kaolin, 0-5% of feldspar and 5-10% of sodium silicate; the mass of the sintering aid is 5% higher than that of the basic raw material; the mass of the pore-forming agent is 25-45% of that of the basic raw material, and the pore-forming agent is selected from one or more than two of crystalline flake graphite, polymethyl methacrylate and spherical graphite. By controlling the composition and dosage of the basic raw materials, the sintering aid and the pore-forming agent, a micro-nano hierarchical pore structure is formed, mechanical properties and permeability are improved at the same time, and good filtration and interception performance on pollutants in wastewater is achieved.

The invention relates to chemical-corrosion-resistant full-polished glaze as well as a preparation method and application thereof, and belongs to the technical field of ceramic production and manufacturing. The chemical-corrosion-resistant fully-polished glaze comprises the following mineral components in percentage by mass: 5%-10% of quartz, 5%-10% of kaolin, 1%-10% of calcined talc, 20%-25% of wollastonite, 10%-20% of calcined kaolin, 1%-5% of calcined alumina, 1%-5% of calcined zinc oxide, 1%-5% of barium carbonate, 1%-3% of titanium oxide, 1%-5% of zirconium silicate and 10%-20% of boron frit. By specially designing a full-polishing glaze formula of the ceramic tile, adjusting the firing temperature and discharging or reducing defects such as air holes in a glaze layer as much as possible, the glaze layer forms a stable inert surface, and chemical substances cannot react with the glaze layer or only slightly react with the glaze layer, so that the transparency, integrity and glossiness of the surface are kept.

The invention relates to the technical field of corrosion prevention and rust prevention of building materials, in particular to an inorganic polymer reinforced concrete anticorrosive coating and a preparation method thereof. The inorganic polymer reinforced concrete anticorrosive paint comprises the following components in parts by mass: 60-70 parts of a base material, 8-12 parts of an anti-crack system, 10-15 parts of a modified filler, 5-8 parts of an auxiliary agent and 15-20 parts of a solvent, the base material is selected from alkali-activated metakaolin; the preparation method of the modified filler comprises the following steps: calcining a composite filler at 480-500 DEG C for 1.5-2 hours, cooling, dipping in a 10wt% tannic acid solution for 10-12 hours, filtering, dipping in a modified solution, ultrasonically dispersing for 20-30 minutes, vacuum-drying, crushing and sieving to obtain the modified filler. According to the inorganic polymer reinforced concrete anticorrosive paint and the preparation method, the problems that an anticorrosive coating is large in self-shrinkage rate, prone to cracking and difficult to adapt to a complex environment due to the single function in the prior art are solved.

The invention relates to the technical field of concrete, and provides ultra-high performance concrete and a preparation method thereof. The ultra-high performance concrete is prepared from the following raw materials in parts by weight: 70 to 80 parts of Portland cement, 15 to 25 parts of silica fume, 5 to 10 parts of limestone, 2 to 5 parts of metakaolin, 100 to 120 parts of quartz sand, 24 to 42 parts of hydroxylated steel fiber, 6 to 24 parts of carboxylic butadiene-acrylonitrile latex, 2.0 to 3.5 parts of a water reducing agent and 15 to 22 parts of water. Through the technical scheme, the problem of poor chloride ion permeability resistance of the ultra-high performance concrete in the prior art is solved.

The invention discloses a preparation method of a foamed thermal-insulation ceramic decorative plate in the technical field of building decorative materials. The method comprises the following steps: carrying out ball milling, spray drying, granulating and ageing on raw materials such as ceramic waste and kaolin; mixing and dispersing the aerogel-hydrogel gradient core-shell structure composite modified material and ceramic particles, and sieving to obtain composite powder; compounding sodium bicarbonate and azodicarbonamide with a foaming agent, mixing the foaming agent with the composite powder, and adding a surfactant and a dispersing agent to adjust the viscosity so as to prepare expandable ceramic slurry; the slurry is injected into a mold and coated with low-temperature glaze, and stepped heating sintering is conducted through a tunnel kiln and comprises the steps of preheating glue discharging, primary foaming, secondary sintering, gradient cooling and the like. The thermal insulation performance, the mechanical strength, the weather resistance and the decoration performance are synergistically improved, and the product is low in heat conductivity coefficient, high in compressive strength, excellent in ultraviolet aging resistance, firm in decoration layer combination and suitable for building outer walls and other scenes.

The invention discloses a high-temperature-resistant inorganic antibacterial ceramic glaze and a preparation process, and relates to the technical field of ceramic glaze preparation, the glaze is composed of a basic glaze and a zinc oxide-doped cerium dioxide inorganic antibacterial agent, and the basic glaze comprises feldspar, quartz, kaolin, calcite and talc. The preparation process comprises the following steps: mixing the raw materials, carrying out wet ball milling, adding the antibacterial agent and the dispergator, stirring at a high speed, sieving to remove iron, aging, glazing and sintering at a high temperature. In the process, an iron removal integrated unit integrating a two-stage vibration screening function and an automatic iron scraping function is adopted, and efficient and continuous iron removal operation is achieved. The obtained glaze can resist high-temperature sintering of 1150-1200 DEG C, the glaze surface is smooth and uniform, the glaze surface has lasting and efficient broad-spectrum antibacterial performance, glaze surface defects caused by iron impurities are effectively avoided, and the product yield and quality stability are improved.

The invention relates to the technical field of thermal transfer printing ink, in particular to anti-migration high-stability thermal transfer printing ink as well as a preparation process and application thereof. The anti-migration high-stability heat transfer printing ink is obtained by uniformly mixing the water-based acrylic resin, the pigment, the defoaming agent, the flatting agent, the thickening agent and the epoxy modified organic silicon resin, then adding the modified hydrotalcite and the kaolin, and uniformly mixing. The anti-migration high-stability heat transfer printing ink is prepared from the following components in parts by weight: 80 to 100 parts of waterborne acrylic resin, 10 to 20 parts of epoxy modified organic silicon resin, 20 to 30 parts of pigment, 10 to 20 parts of modified hydrotalcite, 5 to 8 parts of kaolin, 1 to 3 parts of flatting agent, 2 to 4 parts of defoaming agent and 1 to 3 parts of thickening agent. The anti-migration high-stability thermal transfer printing ink prepared by the invention has relatively high adhesive force and relatively low mobility, and can be stably attached to the surface of a base material.

The invention relates to the technical field of building ceramics, in particular to waxy antifouling matte glaze and a preparation method and application thereof.The waxy antifouling matte glaze is prepared from, by mass, 7-10 parts of kaolin, 6-15 parts of calcined kaolin, 4-8 parts of quartz, 20-30 parts of potassium feldspar, 5-15 parts of albite, 5-10 parts of wollastonite, 1-5 parts of zinc oxide, 5-10 parts of strontium carbonate, 5-12 parts of barium carbonate and 10-20 parts of crystalline frit; the crystalline frit is prepared from the following raw materials in parts by mass: 25 to 35 parts of kaolin, 3 to 8 parts of calcined aluminum oxide, 20 to 35 parts of calcite, 0.5 to 3 parts of dolomite, 5 to 10 parts of zinc oxide, 25 to 35 parts of potassium feldspar, 0.5 to 3 parts of barium carbonate and 1 to 5 parts of anorthite powder. The waxy antifouling matte glaze provided by the invention not only has antifouling performance, but also has high hardness and high wear resistance on the premise of having matte texture and waxy silky hand feeling, so as to overcome the defects in the prior art.

The invention belongs to the technical field of building material and solid waste resource utilization, and relates to a high-durability and high-toughness slag powder-steel slag powder quaternary synergistic excitation-reinforcing agent and a preparation method of gel system mortar. The quaternary synergistic excitation-reinforcing agent comprises the following raw materials in parts by mass: 4-16 parts of sodium hydroxide, 79 parts of sodium silicate, 4-16 parts of aluminum sulfate and 60 parts of metakaolin, and the sum of the mass parts of the sodium hydroxide and the aluminum sulfate is 20. According to the quaternary synergistic excitation-reinforcing agent, sodium hydroxide and sodium silicate are used as main excitants, and aluminum sulfate serving as a function regulator and metakaolin serving as a high-activity aluminum-silicon source and a micro aggregate are introduced to serve as synergistic reinforcing components; the four components cooperate to jointly form an excitation-reinforcement composite system with high durability and high toughness; the sulfate erosion resistance, the chloride ion penetration resistance, the carbonization resistance, the toughness and the impact resistance of the slag powder-steel slag powder cementing system mortar are improved.

The invention discloses a geopolymer-based recycled fine aggregate shield synchronous grouting material and a preparation method thereof. The grouting material is composed of a cementing material, an alkali activator, aggregate, a water reducing agent, a retarder and water, and the cementing material is a geopolymer precursor and is composed of fly ash, slag and metakaolin; the aggregate is composed of river sand and recycled fine aggregate. By optimizing the proportion and the preparation process, the material has the characteristics of excellent flowability, controllable setting time, high early strength, good impermeability, good durability and the like, and is suitable for synchronous grouting of shield tunnels in water-rich sand layers, high-water-pressure stratums or corrosion stratums. The invention also provides two optimization methods which are respectively based on a response surface method and a BP neural network combined genetic algorithm to realize multi-objective optimization of slurry performance. According to the material, dependence on traditional cement and gravel resources is remarkably reduced, energy consumption and carbon emission are reduced, high-added-value resource utilization of industrial solid waste and construction waste is achieved, and the material conforms to the development direction of green low-carbon building materials.

The invention relates to the technical field of ink, in particular to modified filler environment-friendly ink and a preparation method thereof. The modified filler environment-friendly printing ink is prepared from the following raw materials in parts by mass: 20 to 40 parts of waterborne acrylic emulsion, 10 to 20 parts of polyurethane acrylate prepolymer, 1 to 5 parts of bis (trimethylolpropane) tetraacrylate, 10 to 20 parts of pentaerythritol tetraacrylate, 5 to 10 parts of mica powder, 1 to 2 parts of 3-aminopropyltriethoxysilane, 0.1 to 1 part of epoxy chloropropane and 5 to 10 parts of amino-terminated polyamidoamine. The coating is prepared from the following components in parts by weight: 1-2 parts of a photoinitiator, 1-3 parts of a dispersing agent, 1-2 parts of a reactive diluent, 1-2 parts of an organic silicon defoaming agent, 0.5-1.5 parts of a mildew preventive, 0.1-1 part of a thixotropic agent, 5-15 parts of pigment, 1-5 parts of kaolin, 5-10 parts of polyethylene wax and 1-5 parts of water. The obtained ink is good in dispersion stability, good in flexibility after being cured and excellent in adhesive force.

The invention relates to the technical field of building glazed tiles, in particular to an antibacterial glazed tile and a preparation method thereof.The antibacterial glazed tile comprises a green body layer and an antibacterial glaze layer which are sequentially arranged from bottom to top; wherein the antibacterial glaze layer is obtained by calcining antibacterial glaze; the antibacterial glaze is prepared from the following raw materials: high-temperature antibacterial frit, calcined kaolin, corundum, quartz, dolomite, calcined talc, strontium carbonate, wollastonite, potassium feldspar and albite; the high-temperature antibacterial frit is prepared from the following raw materials: zirconium silicate, a silver antibacterial agent, calcined aluminum oxide, calcined talc, quartz, wollastonite, kaolin, calcium phosphate, potassium feldspar, albite, boric acid and lithium carbonate. According to the antibacterial glazed tile and the preparation method thereof provided by the invention, the formula of the antibacterial glaze is optimized, so that the antistatic property and the corrosion resistance can be improved on the premise of ensuring the antibacterial property of the antibacterial glazed tile.

The invention discloses an anti-cracking calcium silicate board and a preparation method thereof, and relates to the technical field of light building materials. The method comprises the following steps: carrying out ball milling, acid pickling and silane coupling agent surface modification on quartz sand to obtain alkylated quartz sand; and carrying out dry mixing on the mixture, metakaolin, silica fume and cement. The linen fiber is subjected to alkali treatment and hydroxyethyl acrylate graft modification, and the PVA fiber is subjected to silane coupling agent and nano silicon dioxide coating treatment. Dispersing graphene oxide, carboxylated styrene-butadiene emulsion and other assistants in water, adding the dry mixture, uniformly stirring, and then adding the two modified fibers to prepare mixed slurry; and finally, carrying out pressure forming, pre-curing, high-pressure steam curing and drying to obtain a finished product. Through substrate silanization, fiber grafting / nanocrystalline seed modification and synergistic introduction of graphene oxide and elastic emulsion, the interface bonding strength and toughness are remarkably enhanced, crack initiation and propagation are effectively inhibited, and the plate has excellent cracking resistance.

The invention relates to the technical field of building lime materials, and particularly discloses a lime material doped with aerated concrete waste and a preparation method of the lime material. The invention relates to a lime material doped with aerated concrete waste. The lime material is prepared from the following raw materials: quick lime, composite regenerated powder, metakaolin, a lithium-based composite activator, modified nano-zinc oxide, semi-hydrated gypsum, hydroxypropyl methyl cellulose ether and sodium carboxymethyl starch, the composite regenerated powder is obtained by activating aerated concrete waste and waste clay brick powder through an acetic acid solution and composite alkali liquor; the modified nano-zinc oxide is obtained by modifying nano-zinc oxide with a silane coupling agent and trehalose. The lime material provided by the invention can effectively digest and utilize the aerated concrete waste and the waste clay brick powder; in addition, through collaborative innovation of a composite additive system, the coagulation strength and water resistance of the lime material are effectively improved.

The invention discloses a polymer cement-based repairing material for stone sculptures and a repairing method of the polymer cement-based repairing material, and belongs to the technical field of cultural relic repairing. The repairing material is prepared from the following components in parts by mass: 50 to 70 parts of PO.42.5 ordinary Portland cement, 20 to 30 parts of water, 5 to 15 parts of calcined kaolin, 0.03 to 1 part of nano silicon oxide, 1 to 3 parts of nano calcium carbonate, 0.01 to 0.03 part of organic silicon defoaming agent, 0.01 to 0.04 part of surfactant and 2 to 10 parts of vinyl acetate-ethylene copolymer. The polymer cement-based repairing material prepared by the invention can realize high bonding strength on a stone matrix and reversible removal at the same time. The polymer repairing material is simple in preparation process and green and environment-friendly in production, and has a wide application prospect in the field of repairing of cultural relics such as stone sculptures and the like.

The invention provides a method for preparing a ceramic material from lithium slag obtained by extracting lithium through a spodumene acid method, and relates to the technical field of energy conservation and environmental protection. The method for preparing the ceramic material by extracting the lithium slag through the spodumene acid method comprises the following steps: S1, component analysis: carrying out comprehensive component analysis on the lithium slag; s2, magnetic separation iron removal: enabling the lithium slag to pass through a magnetic field by using a magnetic separator, so that magnetic iron impurities in the lithium slag are adsorbed and separated; s3, particle size adjustment is conducted, and mechanical equipment is adopted for conducting particle size grading and grinding treatment on the lithium slag; step S4, mixing and ball-milling: according to a preset formula proportion, adding the lithium slag, kaolin, feldspar, quartz and an additive into a ball mill in proportion, adding a proper amount of water, and carrying out ball-milling and mixing for 2-4 hours, so that the raw materials are fully and uniformly mixed to obtain uniform ceramic blank slurry; finally, the problems that the lithium slag is difficult to treat, the requirement for ceramic materials is large, the preparation cost is high and the performance needs to be improved are solved, and energy-saving and environment-friendly treatment and resource recycling of lithium slag resources are achieved.

The invention relates to the technical field of manufacturing of coated paperboards, in particular to frame paper for cigarettes and a preparation process of the frame paper. The problem that the mechanical property and the barrier property cannot be considered at the same time in the prior art is solved. According to the frame paper for the cigarettes, the bleached hardwood pulp and the softwood pulp are compounded, and the calcium carbonate and the nanocellulose crystals are added to prepare the high-uniformity modified paper base; then, polycaprolactone diol, isophorone diisocyanate, dimethylolpropionic acid and 1, 4-butanediol are subjected to a reaction, aminopropyltriethoxysilane is used for blocking, obtained polyurethane emulsion is mixed with gelatinized starch and flaky kaolin step by step, and the composite coating is prepared; coating double surfaces of the modified paper base with the composite coating, and performing step-by-step drying, hot-pressing shaping and curing to obtain the paper. Through multi-stage cooperation of paper base-coating-process, the frame paper has excellent mechanical properties, high printing stability and high barrier property, and is suitable for the field of high-grade cigarette packaging with strict performance requirements.

The invention relates to the technical field of coatings, in particular to an epoxy resin-based water-based corrosion-resistant and weather-resistant coating and a preparation method of the epoxy resin-based water-based corrosion-resistant and weather-resistant coating. A composite modified inorganic filler composed of siloxane modified epoxy resin, modified polysiloxane, rare earth cerium modified graphene, silane modified calcium carbonate oligomer and surfactant-silane composite modified kaolin is compounded; a composite modifier consisting of propylene glycol diacetate, dipropylene glycol butyl ether and diethylene glycol butyl ether and an isopropanol / water mixed solvent are matched, so that the contradiction between the water resistance and the structural stability of the existing water-based paint is effectively solved, and the anticorrosion durability, the weather resistance, the mechanical strength, the adhesive force and the storage stability of the coating are remarkably improved; good water-based dispersity and construction applicability are kept, and the coating can be suitable for long-acting corrosion protection of base materials such as metal components, industrial equipment and building outer walls and has a wide application prospect.

The invention discloses a pore cleaning mud mask and a preparation method thereof, belongs to the technical field of cosmetics, and particularly relates to a pore cleaning mud mask. Comprising 14 to 18 parts of kaolin, 7 to 9 parts of Manny root ice river mud, 4.5 to 5.5 parts of Amazon white mud, 10 to 12 parts of wheat germ oil, 43 to 47 parts of tea water, 0.1 to 0.14 part of a phellinus linteus extract, 1 to 2 parts of swertia mileensis powder, 2 to 4 parts of lactobionic acid, 0.08 to 0.12 part of salicylic acid and 0.4 to 0.6 part of gluconolactone. The pore cleaning mud mask provided by the invention is uniform in particle size distribution, uniform in mixing and capable of keeping the state of the mud mask moist and not dry in the use process, the cleaning strength of controlling oil, dredging pores and resisting inflammation is improved, meanwhile, skin sensitivity caused by excessive cleaning is avoided, and the cleaning effect is good. The invention provides a novel cleaning mud mask formula for realizing the goal of cleaning pores and an efficient and stable preparation method of the novel cleaning mud mask formula.

The invention relates to the technical field of building materials, in particular to an energy-saving and environment-friendly recycled concrete pipe pile and a preparation method thereof. The recycled concrete is prepared from the following raw materials in parts by weight: 35 to 45 parts of recycled aggregate, 22 to 28 parts of P.O42.5 Portland cement, 6 to 9 parts of magnesium phosphate cement composite admixture, 18 to 22 parts of river sand, 1.0 to 1.3 parts of hydroxylated graphene-chitosan-nano zinc oxide ternary composite modifier, 6 to 8 parts of modified waste tire rubber powder, 0.5 to 0.8 part of basalt fiber and the like. The rubber powder is soaked in a sodium hydroxide solution and then treated with a maleic anhydride grafted polyethylene solution; the metakaolin is prepared by calcining coal gangue; the ternary modifier is prepared by grafting, crosslinking and dispersing; the magnesium phosphate admixture contains light calcined magnesia, ammonium dihydrogen phosphate and borax. The tubular pile is excellent in mechanical and durable performance and high in solid waste utilization rate, carbon emission and production energy consumption are reduced, the cost is reduced, the problems that a traditional regenerated tubular pile is low in strength and poor in environmental protection performance are solved, the tubular pile is suitable for multiple engineering scenes, and economic and environmental benefits are remarkable.

The application provides a ceria / yttria composite stabilized zirconia grinding medium and a preparation method. The method comprises the following steps: step one, mixing zirconia, ceria, yttria and kaolin, and then adding an appropriate amount of dispersant and water to obtain a slurry; step two, performing centrifugal spray drying on the slurry to obtain ceria / yttria composite stabilized zirconia powder; step three, adding the ceria / yttria composite stabilized zirconia powder into a binder, and then rolling to form a green body of spherical grinding medium; and step four, sintering and polishing the green body of spherical grinding medium to obtain the ceria / yttria composite stabilized zirconia grinding medium. The method can obtain low particle size and high specific surface area through high-temperature ball milling, and can also promote the solid solution of the stabilizer into the zirconia crystal lattice through heat treatment, so as to improve sintering activity, reduce sintering temperature and reduce production cost.

The invention discloses a chitin-silicon-calcium-based modified material for rammed earth wall repair and a weather resistance evaluation method thereof, and belongs to the technical field of rammed earth wall repair, the chitin-silicon-calcium-based modified material comprises metakaolin, calcium oxide, quartz and chitin; the ratio of chitin to metakaolin to calcium oxide to quartz is 1: 1: 2: 4; the method comprises the following steps: pre-treating at the earlier stage of a test, evaluating freeze-thaw cycle performance, evaluating dry-wet cycle performance, evaluating salt corrosion resistance, analyzing association between a microstructure and a strength performance, and finally, revealing a material degradation rule and mechanism by combining scanning electron microscope observation, unconfined compressive strength test and crack rate analysis. When the freezing and thawing cycle number N is less than or equal to 5, the dry and wet cycle number I is less than or equal to 9, and the salt solution concentration c is less than or equal to 0.3 mol / L, the characteristics of freezing and thawing resistance, dry and wet resistance, salt erosion resistance and the like of the modified material are obviously improved; after the modified material is added, internal pores of plain soil can be filled, unconfined compressive strength of a soil body is enhanced, and long-term durability of the soil body is improved.

This utility model relates to the field of solid-liquid separation technology, specifically an integrated solid-liquid separation device for kaolinite suspension, comprising a vertical flow sedimentation tank, a central feed pipe, a flow guiding component, and a drive component. The vertical flow sedimentation tank has a drain outlet at the bottom and an overflow weir at the top. A water collection tank is located outside the overflow weir, and water outlets are located on both sides of the water collection tank. The central feed pipe is located at the upper center of the vertical flow sedimentation tank and is connected to a water inlet pipe on one side. The flow guiding component includes a mounting base fixed inside the vertical flow sedimentation tank, and a flow guiding plate is fixed to the outer wall of the mounting base. The flow guiding plate is set at an inclined angle and has serrated protrusions on its surface. Multiple sets of ultrasonic oscillators are evenly spaced on the inner wall of the vertical flow sedimentation tank, which can realize the flow guiding control of the suspension, facilitate the extension of the material's residence time in the tank, increase the probability of particle sedimentation, and at the same time, promote particle collision and accelerate the agglomeration of kaolinite particles.