383 results about "Potassium silicate" patented technology

The invention relates to the technical field of fertilizer preparation, and discloses an ecological balance fertilizer for yield increase and disease resistance of peanuts and a preparation method of the ecological balance fertilizer. The preparation process comprises the following steps: constructing a PLGA core containing trichoderma harzianum spores and magnesium carbonate through a micro-fluidic chip low-temperature water-in-oil emulsion method; coating bacillus amyloliquefaciens and potassium silicate with ultraviolet-induced cross-linked temperature-sensitive hydrogel to form a middle layer; loading rhizobium by using aminated mesoporous S < iO2 >, and spraying and assembling an enzyme response shell through a fluidized bed; finally, the hydroxyapatite nanorod and a binder are combined and granulated and formed through a fluidized bed. Precise controlled release of functional bacteria and nutrients is realized by constructing a temperature-sensitive-enzyme response type release system, and the activity of a fungicide is guaranteed to be preserved by virtue of trichoderma harzianum-rhizobium synergistic interaction and silicon bond linkage soil remediation in combination with a low-temperature fluidized bed process, so that a'fertilizer-bacterium-soil 'ecological cycle system is finally constructed.

The invention discloses a coating as well as a preparation method and application thereof. The coating comprises the following raw materials: potassium silicate; ethyl orthosilicate; a nanometer titanium dioxide sol; rare earth is doped with nano titanium dioxide; compounding zinc oxide nanoparticles; nano silicon dioxide sol; a fluorosilane coupling agent; a fluorocarbon surfactant; a conductive carbon nanotube; nano aluminum oxide sol; an organic silicon modified acrylate emulsion; a boron nitride nanosheet; hollow glass beads; a shape memory polymer; the invention discloses a self-repairing nanofiber. After a coating is formed by using the coating, the coating has the characteristics of high light transmittance, good self-cleaning effect, high hardness, good adhesive force and excellent weather resistance, and can be applied to a photovoltaic module to replace an existing photovoltaic module coating product.

The invention belongs to the technical field of nanocrystal nucleus early strength agents, and provides a damp and hot nanocrystal nucleus early strength agent, a tailing solidification filling material and a preparation method and application of the damp and hot nanocrystal nucleus early strength agent and the tailing solidification filling material. The invention discloses a molybdenum ore tailing slurry which is prepared from the following raw materials in parts by weight: 1 part of Portland cement, 4 to 6 parts of molybdenum ore tailings, 0.06 to 0.1 part of zeolite powder, 0.07 to 0.1 part of nanoscale attapulgite powder, 0.06 to 0.1 part of gamma-glycidyl ether oxypropyl trimethoxy silane, 0.03 to 0.1 part of potassium silicate, 0.04 to 0.1 part of sodium hydroxide, 0.06 to 0.1 part of calcium formate, 0.04 to 0.1 part of lithium metaaluminate and 1.25 to 1.75 parts of water. According to the technical scheme, the problem that a filling body prepared from an early strength agent in the prior art is low in early and later strength is solved, and meanwhile, the early strength agent is simple and convenient in preparation mode, low in cost and wide in application range.

The invention relates to the field of concrete additives, in particular to a heat-resistant anti-freezing water-based permeable inorganic waterproof agent as well as a preparation method and application thereof. The invention discloses a heat-resistant and anti-freezing water-based permeable inorganic waterproof agent which is prepared from the following raw materials in parts by mass: 55-70 parts of active potassium silicate, 10-12 parts of Portland cement, 10-20 parts of modified silicon dioxide, 5-10 parts of a filling agent, 2-4 parts of a coupling agent, 0.5-1.5 parts of a catalyst, 3-8 parts of a dispersing agent, 1.5-3 parts of a stabilizer and 30-50 parts of deionized water. The inorganic waterproof agent prepared by the invention not only has excellent waterproof performance, but also can effectively improve the corrosion resistance, aging resistance, stability and the like of concrete at the same time, can meet the construction requirements of existing deep operation, has very excellent comprehensive performance, and has very excellent application prospects.

The invention discloses a preparation process of a high-toughness anti-cracking alkali-activated geopolymer cementing material, which comprises the following steps: (1) mixing steel slag powder and a phosphoric acid solution, heating, preserving heat, reacting, drying to remove moisture, and grinding to obtain pretreated steel slag powder; and (2) uniformly mixing brucite powder, potassium silicate and water to form slurry, then adding basalt fibers into the heated slurry, standing, separating out the fibers after standing, uniformly mixing the fibers with the pretreated steel slag powder, and drying to obtain pretreated fibers. And (3) placing the pretreated fiber in a closed container containing carbon dioxide and water vapor, and carrying out heat preservation and maintenance to obtain the modified fiber. And (4) weighing the following raw materials according to the following proportion: aluminum-silicon solid waste micro powder, coarse aggregate, fine aggregate, the modified fiber, an alkali activator and a water reducing agent. The preparation method comprises the following steps: uniformly mixing the raw materials, adding water and uniformly stirring. The fiber subjected to surface treatment effectively improves the crack resistance of the geopolymer cementing material.

The invention discloses lightweight thermal insulation concrete and a preparation method thereof, and belongs to the technical field of lightweight concrete. The lightweight thermal insulation concrete is prepared from the following raw materials in parts by weight: 20 to 25 parts of fly ash geopolymer slurry, 60 to 70 parts of cement, 20 to 24 parts of glass beads, 100 to 110 parts of modified ceramsite, 15 to 17 parts of polypropylene fiber, 5 to 7 parts of potassium silicate, 16 to 20 parts of pure acrylic emulsion, 1.5 to 2 parts of gamma-aminopropyltriethoxysilane, 0.8 to 1.0 part of polycarboxylic acid water reducer and 0.3 to 0.5 part of cellulose ether. 3-5 parts of a foaming agent, 1-2 parts of a synergist and 50-60 parts of water. The lightweight concrete prepared by adding the modified ceramsite, the synergist dipropylene glycol monomethyl ether, the compound foaming agent and other specific material components is good in thermal insulation effect and excellent in crack resistance and frost resistance, and the comprehensive performance is synchronously improved.

The invention relates to the technical field of titanium alloy casting, and provides a graphite and ceramic core composite titanium alloy casting process which comprises the following steps: preparing a graphite casting mold, preparing a ceramic core, degassing the graphite casting mold, combining the degassed graphite casting mold and the degassed ceramic core, smelting and casting. The preparation method of the ceramic core comprises the following steps: S1, preparing a surface layer shell on a wax mold; s2, a back layer shell is prepared on the surface layer shell, dewaxing and roasting are conducted, and a ceramic core is obtained; in the step S1, a preparation method of the surface layer shell comprises the following steps that a wax mold is coated with a surface layer coating, sanding and drying are conducted, and the surface layer shell is obtained; the surface layer coating comprises the following components in parts by weight: 23-35 parts of yttrium oxide powder and 30-50 parts of a binder; the binder comprises dysprosium oxide, potassium silicate and silica sol. According to the technical scheme, the problems of poor creep resistance and poor bending strength of the ceramic core in the prior art are solved.

The invention provides a preparation method of a concrete pavement curing agent, and belongs to the technical field of concrete. The preparation method comprises the following steps: preparing a modified beta-cyclodextrin solution, preparing a polyurethane emulsion 1, preparing a polyurethane emulsion 2, and mixing. The mixing method comprises the following steps: adding potash water glass into deionized water, sequentially adding a water-based stabilizer, a polyurethane emulsion 1, a polyurethane emulsion 2 and decyl glucoside in a stirring state, and then transferring the mixture into an ultrasonic oscillator for ultrasonic dispersion for 25-35 minutes to obtain the concrete pavement curing agent. The effective water retention rate of the curing agent is 92-96%, the compressive strength ratio is 95-97% in 7d and 98-99% in 28d, the abrasion loss is 0.7-1.1 kg / m < 2 >, the solid content is 27-30%, and the drying time is 1.1-1.4 h.

The invention relates to the field of building materials, and discloses an artificial lightweight aggregate with industrial waste alkali as an alkali activator and a preparation method thereof.The artificial lightweight aggregate is prepared from, by weight, 30-40 parts of F-class fly ash, 30-40 parts of S95-grade mineral powder, 10-20 parts of zeolite powder, 5-15 parts of sodium silicate or potassium silicate, 5-10 parts of industrial waste alkali and 0-20 parts of water; the preparation method comprises the following steps: weighing the raw materials in proportion, mechanically stirring the raw materials for several stages, granulating the mixture in a rotary table or a cylindrical rotary drum, spraying water in an atomization manner until the particle diameter reaches 18-22 mm, and finally curing in a natural environment to prepare the lightweight aggregate. According to the invention, the resource utilization of the industrial waste alkali is realized, the dependence of natural aggregate is reduced, the preparation process is simple, the product performance is excellent, and the economic and environment-friendly benefits are remarkable.

A detergent building composition, comprising (i) one or more sugar oxidation products; and (ii) at least one performance augmenting additive selected from the group consisting of aluminates, silicic acid, sodium silicate, potassium silicate, monosilicates, carbonates, silanes, siloxanes, amino acids, urea, boric acid, borate derivatives, molybdates, titanates, chelating agents, sugar alcohols, carboxylates, acids, and combination thereof. A detergent building composition, comprising (i) glucaric acid, gluconic acid, salts thereof, lactones thereof or combinations thereof; and (ii) at least one performance augmenting additive selected from the group consisting of aluminates, silicic acid, sodium silicate, potassium silicate, monosilicates, carbonates, silanes, siloxanes, amino acids, urea, boric acid, borate derivatives, molybdates, titanates, chelating agents, sugar alcohols, carboxylates, acids, and combination thereof.

The invention provides a fire-resistant inorganic fiber cotton board and a preparation method thereof, and belongs to the technical field of fire-resistant materials. The preparation method comprises the following steps: carrying out acid leaching treatment on sepiolite powder by using phosphoric acid, loading ammonium polyphosphate, drying and crushing to obtain a product A; enabling DOPO to react with gamma-aminopropyltriethoxysilane, and stirring and dissolving to obtain a product B; methyltrimethoxysilane and diethanol amine are subjected to hydrolytic polycondensation, dibutyltin dilaurate is added for continuous reaction, and a product C is obtained; combining raw materials including sodium silicate, potassium silicate, the product A, the product B, the product C and the like to prepare a curing liquid; melting and centrifuging the slag into cotton, and carrying out wet forming to obtain an inorganic fiber cotton plate rough blank; and the inorganic fiber cotton board rough blank is subjected to vacuum dehydration, then a curing liquid is sprayed, and the fireproof inorganic fiber cotton board is obtained after drying. The inorganic fiber cotton board is subjected to double-sided spraying by adopting the new curing liquid, so that the fireproof performance is high, and the mechanical property of the inorganic fiber cotton board can be enhanced.

A carbon dioxide capture structure having a monolithic three-dimensional shape, the structure being porous with interconnected pores which are accessible from an exterior side of the structure. The structure is made of a building material including a first material and a second material. The first material is a sorbent material (e.g. functionalizable for carbon dioxide adsorption). The second material is a binder material including potassium silicate. The present disclosure also relates to a method of making the carbon dioxide structure and a method for removing carbon dioxide from a gas or fluid mixture.

The invention provides a recycled aggregate product, a preparation method thereof and recycled concrete, and belongs to the technical field of recycling of building materials. The preparation method of the recycled aggregate product comprises the following steps: S1, crushing waste concrete to obtain crushed concrete; then carrying out sorting treatment and magnetic separation treatment on the crushed concrete to obtain concrete subjected to impurity removal; the concrete subjected to impurity removal is screened, and initial recycled aggregate is obtained; s2, performing soaking treatment on the initial recycled aggregate by adopting strengthening liquid, and then performing dehydration treatment to obtain strengthened recycled aggregate; wherein the strengthening liquid is prepared from potassium silicate, vinyl acetate-ethylene copolymer emulsion, nanometer aluminum oxide, a dispersing agent and water; s3, calcining the reinforced recycled aggregate to obtain a recycled aggregate product. According to the preparation method, high-value utilization of the waste concrete can be achieved, and the obtained recycled aggregate product is excellent in performance.

The invention discloses an interface agent for gypsum-based self-leveling mortar tiling, a preparation method and a coating process thereof, and belongs to the technical field of building materials. The interface agent for the gypsum-based self-leveling mortar tiling comprises mesoporous particles, a polyurethane acrylic emulsion, an epoxy modified acrylic emulsion, an acrylic emulsion, modified potassium silicate or modified sodium silicate, a silane coupling agent, a wetting agent, a dispersing agent and other auxiliaries. According to the interface agent for the gypsum-based self-leveling mortar tiling, the preparation method and the coating process of the interface agent, the problem of insufficient bonding strength after tiling caused by pulverization or surface compactness and difficulty in permeation due to bleeding of the surface of the self-leveling gypsum is solved.

The invention discloses a preparation method of a 1200 DEG C temperature-resistant thermal insulation coating containing ATO-Nb2O5-coated Al2O3 aerogel, and belongs to the technical field of coatings. According to the method, the ATO-Nb2O5-coated Al2O3 aerogel is prepared through a gradient coating technology, nanometer ATO particles form an infrared reflection barrier, Nb2O5 inhibits Al2O3 high-temperature crystal form transformation through a pinning effect, and CO2 supercritical drying (11-14 MPa, 30-45 DEG C and 4-6 h) is combined to obtain the aerogel with high porosity and the alpha phase transition temperature larger than or equal to 1200 DEG C. An organic-inorganic compound adhesive (alkaline silica sol, potassium silicate and modified organic silicon emulsion) is used as a matrix and cooperates with hollow ceramic microbeads and superfine mullite fibers to construct a multi-scale heat insulation system, and the coating is prepared through high-speed dispersion. The heat conductivity coefficient of the coating at 25 DEG C is as low as 0.039 W / (m.K), the temperature resistance reaches 1225 DEG C, the coating has thermal shock resistance and low heat conductivity, the problems of high-temperature phase change densification and coating cracking of traditional Al2O3 aerogel are solved, and the coating is suitable for ultrahigh-temperature heat insulation protection of industrial equipment.

The invention discloses an anti-seepage brick for an electrolytic cell lining and a preparation method thereof, the anti-seepage brick comprises an aluminum silicate mixture, the aluminum silicate mixture is composed of at least three of pyrophyllite, flint clay, clay, silica, albite and potassium feldspar, a potassium silicate eutectic and a fine powder sintering aid are added, the materials are uniformly mixed, a binding agent is added for granulation, mechanical pressing molding is performed, and high-temperature sintering is performed; the aluminum silicate mixture is prepared from the following raw materials in parts by weight: 50 to 75 parts of pyrophyllite, 20 to 42 parts of flint clay, 1 to 8 parts of albite and 1 to 5 parts of potassium silicate eutectic. The invention relates to the technical field of anti-seepage bricks, and particularly provides an anti-seepage brick for an electrolytic cell lining and a preparation method of the anti-seepage brick.

The invention relates to the technical field of building materials, in particular to a ternary hybrid fiber reinforced geopolymer suitable for fire-resistant and bending-resistant members and a preparation method thereof, and the geopolymer comprises the following raw material components: metakaolin, fly ash, potash water glass solution, water, corundum aggregate, wollastonite fiber, steel fiber and basalt fiber. Through the high strength of the steel fibers and the high temperature resistance of the basalt fibers and the wollastonite fibers, a fiber reinforced network is formed. Wherein the wollastonite fibers are microscale high-temperature-resistant fibers and can be used for bridging microscopic cracks, so that the high-temperature resistance of a matrix is effectively enhanced. In addition, the ternary hybrid fiber geopolymer disclosed by the invention has relatively good bending resistance. A three-point bending test shows that the bending strength of the ternary hybrid fiber geopolymer can reach 20MPa in a normal-temperature environment; after high-temperature exposure at 400 DEG C, the bending strength of the ternary hybrid fiber geopolymer can reach more than 30 MPa.

The invention relates to the technical field of crop cultivation. In particular to a rice leaf fertilizer and a fertilizing method and application thereof. The rice leaf fertilizer is prepared from the following components in percentage by weight: 10 to 20 percent of chitin derivative, 5 to 15 percent of compound amino acid, 5 to 10 percent of composted livestock and poultry manure, 5 to 15 percent of fulvic acid, 1 to 3 percent of zinc sulfate, 0.5 to 2 percent of borax, 0.2 to 0.5 percent of potassium silicate, 0.1 to 0.5 percent of polyether modified siloxane, 0.05 to 0.1 percent of rhamnolipid, 0.1 to 0.15 percent of betaine, 1 to 2 percent of sodium alginate and the balance of water. By applying the foliar fertilizer in drought and salt stress environments, the content of beta-glucan in rice is increased, the rice foliar fertilizer disclosed by the invention not only can be popularized for planting rice in northern drought regions in China, but also the planted rice has higher beta-glucan content, and has a health assisting effect on diabetics with limited starch consumption.

The invention discloses a hydrophilic and oleophobic coating as well as a preparation method and application thereof, the method comprises the following steps: S1, mixing a perfluorosilane coupling agent with an isopropanol solution to obtain a first mixed solution; s2, adding an acid catalyst into the first mixed solution to obtain a first reaction solution; s3, mixing water, isopropanol, potassium silicate and potassium methylsilicate to obtain a second mixed solution; s4, adding perfluoroalkyl betaine into the second mixed solution to obtain a second reaction solution; s5, mixing the first reaction solution with the second reaction solution to obtain the hydrophilic and oleophobic coating. The hydrophilic and oleophobic coating prepared by the invention has super-strong hydrophilicity and oleophobicity, and the obtained coating material improves the oil stain cleaning capacity and cleaning efficiency.

The invention discloses a battery thermal runaway self-inhibition coating based on a heat absorption type reverse thermit reaction as well as a preparation method and application thereof. The battery thermal runaway self-inhibition coating comprises the following raw materials in percentage by weight: 40-60% of Fe2O3, 15-25% of Al powder, 20-35% of a heat absorption additive, 5-10% of a binder and 0-5% of a trigger regulator, the heat absorption additive is Bi2O3 or SrCO3; the binder is a potassium silicate aqueous solution or high-temperature-resistant polysiloxane resin; the trigger regulator is copper oxide or manganese dioxide. The coating is not a single functional material, but is a'reaction system ', an thermit reaction is converted into an endothermic reaction by introducing an endothermic additive, and a product of the coating can be fused and sintered in situ to generate a compact porous ceramic-metal composite heat insulation layer during the endothermic reaction, so that a battery cell can be isolated in space, and the performance of the battery cell is improved. And heat radiation can be effectively blocked due to low heat conductivity, so that double insurance of heat absorption and isolation is realized.

The invention relates to a building exterior wall coating and a preparation method thereof, and belongs to the technical field of building coatings. The coating is composed of a composite inorganic-organic hybrid film forming base material, a nano composite flame-retardant filler, a bio-based thickener, a photoresponsive hydrophobic aid, a low-foam wetting dispersant and deionized water. Wherein the composite base material forms an interpenetrating network structure through compounding of sodium potassium silicate and phosphate modified polyacrylate emulsion, and has inorganic phase hardness and organic phase flexibility; the nano flame-retardant filler adopts an Mg-Al layered dihydroxy oxide and cerium dioxide core-shell structure, and zinc borate is loaded to realize multi-stage flame retardance. The preparation method comprises ultrasonic-assisted emulsion polymerization, electrostatic self-assembly filler compounding and gradient curing processes, and during construction, a layered spraying and ultraviolet activation combined technology is adopted. The super-hydrophobic self-cleaning flame-retardant coating has excellent flame retardance, super-hydrophobic self-cleaning performance and long-acting weather resistance.

The invention discloses a radiation refrigeration thermal insulation coating, which comprises a primer and a finish, the primer comprises deionized water, a pH regulator, a defoamer, hydroxypropyl methyl cellulose, a wetting agent, a dispersant, a waterborne polyurethane emulsion, aerogel, hollow glass beads, sepiolite and a film forming aid; the finish paint is prepared from deionized water, a PH regulator, a defoaming agent, hydroxypropyl methyl cellulose, a dispersing agent, silicon oxide, zirconium oxide, rutile type titanium dioxide, infrared reflection filler, a coalescing agent, a defoaming agent, far infrared ceramic powder, potassium silicate, silica sol, titanium sol, silane modified acrylic emulsion and conductive mica powder. The coating has the advantages of excellent sunlight reflectivity and infrared emissivity, low heat conductivity coefficient, excellent high temperature resistance, excellent flame retardance and excellent stain resistance.

The invention provides a water-oil primer universal anticorrosive coating and a preparation method thereof, and belongs to the technical field of anticorrosive coatings. The anticorrosive coating provided by the invention comprises a component A and a component B in parts by weight, and the mass ratio of the component A to the component B is (1-5): 1; the component A is prepared from 40 to 60 parts of water, 30 to 50 parts of waterborne epoxy resin, 1 to 5 parts of graphene derivative, 1 to 5 parts of lithium-containing phosphate, 3 to 10 parts of glass sand, 1 to 3 parts of silane coupling agent, 1 to 3 parts of potassium silicate, 1 to 2 parts of magnesium powder, 1 to 5 parts of nano filler, 1 to 3 parts of thickening agent, 1 to 5 parts of wetting agent and 1 to 3 parts of alkyl glycidyl ether; and the component B comprises 15-30 parts of a waterborne epoxy curing agent and 1-5 parts of an ether solvent. When the paint provided by the invention is coated on the surface of a water-based or solvent-based anti-corrosion primer, a coating with smooth quality can be formed, and the anti-corrosion coating formed after curing has excellent adhesive force and anti-corrosion effect.

The invention belongs to the technical field of inorganic coatings, and particularly relates to a mildew-proof antibacterial inorganic coating and a preparation method thereof. The mildew-proof antibacterial inorganic coating is prepared from the following components in parts by weight: water, a thickening agent, a coalescing agent, a dispersing agent, a wetting agent, a defoaming agent, an antibacterial agent, KH-560 modified nano-silver, inorganic filler, styrene-acrylic emulsion, a stabilizer, silica sol and a KH-560 modified potassium silicate solution. Potassium silicate is used as a main inorganic film-forming substance to modify nano-silver and potassium silicate, the stability and water resistance of the coating are improved, the coating has long-term stable and efficient full-stage mildew-proof and antibacterial functions through the modified nano-silver and the antibacterial agent, and meanwhile the durability of concrete can be improved; by optimizing the stirring process and the feeding sequence, the storage stability and the film-forming property of the coating are further improved.

The invention provides a modified flaky zinc-based material for a water-based inorganic zinc silicate coating, a preparation method of the modified flaky zinc-based material, the coating and the preparation method of the coating. A composite modifier comprising film-forming resin, a surfactant and a cosolvent is adopted to modify and coat the raw material flaky zinc-based material, and a controllable ball-milling synergistic process is adopted; the dispersing performance, the anti-corrosion performance and the construction performance of the modified flaky zinc-based material are improved. According to the water-based inorganic zinc silicate coating based on the modified flaky zinc base material and the preparation method of the coating, the coating A and the coating B are designed, so that gelation caused by advanced reaction between potassium silicate and zinc is avoided, and the storage time of the coating is prolonged; the styrene-acrylic emulsion and the silane coupling agent are used for synergistically modifying the potassium silicate solution, so that the corrosion resistance, the stability, the dispersity and the construction adaptability of the coating are improved.

The invention relates to heat insulation type fireproof composite glass as well as a preparation method and application thereof. The glass comprises a counter-fire glass layer which comprises counter-fire glass; the heat insulation layer is arranged on the surface of the counter-fire glass layer; the heat insulation layer comprises a fiber aerogel core layer; a first potassium silicate gel layer and a second potassium silicate gel layer are arranged on the upper surface and the lower surface of the fiber aerogel core layer, and the counter-fire glass is connected with the heat insulation layer through the first potassium silicate gel layer; butyl rubber layers are arranged on the peripheries of the four vertical side faces of the fiber aerogel core layer. The back fire glass is arranged on the surface of the heat insulation layer, and the back fire glass layer comprises back fire glass; the back fire glass is connected with the heat insulation layer through a second potassium silicate gel layer; the surface of the butyl rubber layer is respectively connected with the counter-fire glass layer and the back-fire glass layer. The technical problem to be solved is how to prepare the glass which has good heat insulation and fireproof performance.

The invention relates to the field of composite materials, and discloses a ceramic fiber reinforced composite aerogel material and a preparation method thereof.The ceramic fiber reinforced composite aerogel material is prepared from ceramic fibers, fumed silica, an aerogel precursor, modified aerogel powder and other raw materials through a sol-gel combined special drying technology; the flame-retardant fireproof coating is formed by spraying and curing slurry prepared from potassium silicate, silicone acrylic emulsion, modified ammonium polyphosphate, pentaerythritol, aluminum hydroxide, expanded vermiculite and fumed silica, and modified aerogel powder is prepared by dipping a silicon dioxide precursor solution into reduced graphene oxide aerogel; the modified ammonium polyphosphate is prepared by synergistically assembling activated ammonium polyphosphate and chitosan, combining with mercaptopropyltrimethoxysilane and then grafting octavinyl-POSS (Polyhedral Oligomeric Silsesquioxane). The prepared ceramic fiber reinforced aerogel material has the characteristics of high temperature resistance, light weight and high strength; the flame-retardant fireproof coating improves the antifouling self-cleaning effect, the fire endurance and the heat insulation performance of the material.

The invention provides a high-strength lime-sand polymerized building material and a preparation method thereof, and belongs to the technical field of building materials, and the lime-sand polymerized building material comprises calcined fly ash clinker, silica fume, lithium slag, a composite nanofiller, coal gangue, steel fiber, a polymerizing agent, a polymerization auxiliary agent and the like; the polymerizing agent is prepared by compounding a potassium silicate aqueous solution and a potassium hydroxide aqueous solution, standing, adjusting the pH value with citric acid, standing and curing; the polymerization auxiliary agent is prepared by mixing perfluorohexyl ethyl triethoxy silane, a silane coupling agent, amino dipropyl polydimethylsiloxane and diphenylmethane glycidyl ether epoxy resin. The calcined fly ash clinker, the silica fume and the lithium slag are subjected to wet grinding to prepare a precursor, and a foundation is laid for polymerization reaction. The polymerization agent and the polymerization auxiliary agent regulate the reaction process and the product structure. And the polymerization auxiliary agent improves the workability and the steel fiber distribution homogeneity. By optimizing precursor combination, a polymerization formula, a preparation process and maintenance conditions, the building material with high strength, high compactness and excellent durability is obtained.

The invention relates to the technical field of anti-decarburization coatings, in particular to a high-carbon steel anti-decarburization coating and a preparation method and application thereof. The coating disclosed by the invention is prepared from the following raw materials in parts by weight: 30 to 35 parts of SiO2, 4 to 6 parts of Al2O3, 0.5 to 1 part of talcum powder, 1 to 2 parts of gypsum powder, 1 to 5 parts of ZrO2, 1 to 3 parts of potassium feldspar powder, 1 to 3 parts of albite powder, 5 to 10 parts of ZnO, 1 to 4 parts of Cr2O3, 5 to 8 parts of SiC, 5 to 9 parts of B2O3, 1 to 4 parts of graphite and 30 to 40 parts of solvent. Wherein the ratio of Al to Si is 1: (6-8); the solvent is prepared from 0.1 to 0.6 percent of methyl cellulose, 5 to 10 percent of sodium silicate / potassium silicate, 0.3 to 1 percent of polyethylene glycol, 0.01 to 0.03 percent of hexadecyl sodium sulfonate and the balance of water. The coating provided by the invention has the advantages of rapid curing, low-temperature glazing and simple phosphorus removal.

The invention relates to the technical field of fertilizers, and discloses a molybdenum-boron synergistic control type macroelement water-soluble fertilizer, which is prepared from the following raw materials in parts by weight: nitrate nitrogen, ammonium nitrogen, ammonium polyphosphate, potassium oxide, chelated magnesium (MgO), trace elements, a stress-resistant enhancer, a synergistic control agent and a stabilizer, the trace elements are composed of ammonium molybdate, a boric acid-glycerol compound, chelated zinc, chelated manganese (Mn-EDTA) and a chelating agent. According to the molybdenum-boron synergistic control type macroelement water-soluble fertilizer and the preparation process thereof, the ammonium molybdate and the boric acid-glycerol compound are added into the fertilizer, so that the nutrient deficiency symptom can be effectively and synergistically prevented, the fungal disease resistance can be effectively improved by adding the salicylic acid and the nano silicon dioxide, and meanwhile, the effect of preventing and treating the macroelement is achieved. By adding the chlamydomonas rubra enzymolysis extract containing natural abscisic acid, potassium silicate and polyaspartic acid, the high temperature resistance, drought resistance and heavy metal pollution resistance of the fertilizer can be effectively improved, so that the effect of the whole water-soluble fertilizer is improved, and the application range of the water-soluble fertilizer can be widened.