184 results about "Vermiculite" patented technology

The invention provides a biological organic fertilizer and a preparation method thereof. The biological organic fertilizer is prepared from the following raw materials in parts by weight: 10 to 15 parts of rice husk, 8 to 12 parts of peanut shell, 10 to 15 parts of bagasse, 15 to 20 parts of straw, 20 to 25 parts of livestock manure, 5 to 10 parts of pond sludge, 3 to 5 parts of plant ash, 5 to 10 parts of oil meal, 5 to 10 parts of ammonium phosphate, 2 to 5 parts of low-temperature complex microbial inoculants, 3 to 6 parts of seaweed oligosaccharide, 5 to 10 parts of modified vermiculite powder and 10 to 20 parts of photothermal conversion microspheres. According to the invention, waste is taken as a basic raw material and is matched with ammonium phosphate to rapidly supplement available nutrients, and meanwhile, the low-temperature complex microbial inoculant, the modified vermiculite powder and the photothermal conversion microspheres are introduced to form a synergistic interaction system. Vermiculite powder is modified, so that the nutrient adsorption and slow release capability is improved, a carbon source and low-temperature protection are provided for microorganisms, and the cell membrane stability is enhanced. The photothermal conversion microspheres efficiently absorb sunlight and convert the sunlight into heat energy, a local and mild heat island effect is formed around the fungicide, the microenvironment temperature is increased, breeding of the fungicide is remarkably accelerated, and therefore organic matter decomposition and nitrogen conversion are accelerated.

The invention discloses an anti-dusting ablation-resistant silicon dioxide aerogel composite material based on multi-phase synergistic reinforcement and a preparation method of the anti-dusting ablation-resistant silicon dioxide aerogel composite material. The inorganic vermiculite powder reinforcement is introduced into the aerogel in situ, the particle size of vermiculite is controlled to realize anchoring-bridging dual effects, a three-dimensional interpenetrating network is formed by co-gelling with the organosilicon precursor solution and the fibrofelt, and the powder falling rate of the finally prepared silicon dioxide aerogel composite material is 1t; mg and Fe elements contained in the vermiculite can promote generation of a glass phase at a high temperature, and cooperate with the fiber felt to resist 1200 DEG C ablation. The density of the product can be controlled to be 200-350kg / m < 3 >, the heat conductivity coefficient is 0.025-0.040 W / (m.K), and the product is suitable for the field of aerospace thermal protection.

The invention relates to the technical field of preparation of rice seedling raising substrates, in particular to a preparation method and application of a rice seedling raising substrate based on rapid fermentation of reed foam, and the rice seedling raising substrate comprises the following components in parts by weight: 35-50 parts of reed residue, 15-22 parts of cow dung, 8-15 parts of carbonized rice husk, 10-20 parts of turf, 13-22 parts of modified bacterium-loaded vermiculite and 3-8 parts of a nutritional composition, the modified bacterium-loaded vermiculite comprises nitrogen-fixing bacteria and a vermiculite carrier subjected to functional modification. According to the invention, humic acid and other active substances generated in the composting fermentation process of reed residues and cow dung can chelate metal ions in the nutritional composition, the bioavailability of the nutritional composition is improved, and carbonized rice husks, turf and bacterium-loaded vermiculite construct a composite substrate system with excellent physical properties and strong biological functions. Organic unification of nutrition supply, physical support and biological regulation is realized, and an ideal growth medium is provided for cultivating robust rice seedlings suitable for mechanical transplanting.

This invention discloses a composite transparent film and its preparation method, relating to the technical field of polymer materials. The preparation method of the composite transparent film includes the following steps: (1) melting and blending vermiculite and fluororubber to obtain fluorinated vermiculite; then mixing the fluorinated vermiculite and mica evenly to obtain composite clay; (2) mixing polyvinyl alcohol solution, composite clay, and SESC lignin evenly to obtain a precursor solution, wherein the mass ratio of polyvinyl alcohol, composite clay, and SESC lignin is 45:45:(8-12); then spreading and drying the precursor solution on a substrate by casting, followed by heat treatment to obtain the composite transparent film. The composite transparent film of this invention possesses excellent water vapor barrier properties, ultraviolet absorption capacity, good transparency, high mechanical strength, and weather resistance.

The invention relates to the technical field of solid waste treatment, in particular to a method and a device for converting oily sludge pyrolysis residues into soil. Comprising the following steps: raw material preparation: mixing 40-50 parts by weight of oily sludge pyrolysis residues, 35-40 parts by weight of mushroom dregs, 4-10 parts by weight of vermiculite, 9-15 parts by weight of straws and 1-3 parts by weight of humic acid; performing fermentation treatment: performing composting fermentation on the prepared raw materials, controlling the fermentation temperature to be 30-60 DEG C, the water content of the materials to be 55-65% and the fermentation time to be 20-90 days, and performing intermittent stirring and ventilation in the fermentation process; according to the method for converting the oily sludge pyrolysis residues into the soil, the oily sludge pyrolysis residues can be converted into the soil improvement product with a good physical structure, rich nutritional ingredients and active microbial communities, and resource utilization of waste is achieved.

The invention belongs to the field of refractory materials, and provides a light heat-insulating refractory brick and a preparation method thereof. The light heat-insulating refractory brick comprises particles, mixed powder and an additional binding agent, the particles comprise, by weight, 10-15 parts of expanded vermiculite and 30-45 parts of closed cell perlite, and the mixed powder comprises, by weight, 15-25 parts of spherical quartz powder and 5-15 parts of perlite dust collecting powder. The raw materials comprise, by weight, 5-10 parts of waste silica brick powder, 5-10 parts of siliceous pyrophyllite powder, 10-15 parts of Jiaozhou white clay, 5-15 parts of sodium montmorillonite powder and 5-15 parts of limonite powder; the additional binding agent comprises the following raw materials in parts by weight: 3-5 parts of binding slurry and 3-5 parts of pre-gelatinized starch. The refractory brick disclosed by the invention is a light heat-insulating refractory brick which is small in volume density, small in heat conductivity coefficient and capable of meeting the requirement of heat insulation in a high-temperature kiln at 900-1000 DEG C in normal-temperature compressive strength.

The invention relates to the technical field of dispersion liquid preparation, and discloses a vermiculite aqueous dispersion liquid, a preparation method and application, the preparation method comprises the following steps: preparing raw materials, mixing vermiculite and a pretreatment agent, adding a hydrogen peroxide aqueous solution, stirring, controlling the temperature, adding a pH regulator and a functional auxiliary agent, and stirring, the raw materials comprise vermiculite, a pretreating agent, a hydrogen peroxide aqueous solution, a pH regulator and a functional additive; the mass content of hydrogen peroxide in the hydrogen peroxide aqueous solution is not less than 20% High-concentration hydrogen peroxide is matched with a pretreatment agent, the reaction is rapid and complete, additional heating is not needed, the product dispersion stability is good, the storage life is long, the product is environmentally friendly, the formula can be flexibly adjusted to adapt to different scenes, and the product is suitable for high-temperature environment surface treatment, fire resistance and fire prevention / fire extinguishment (such as lithium batteries and steel structures), electricity / catalysis industry functional carriers and the like.

The utility model belongs to the technical field of ecological breeding equipment, and particularly relates to an in-water circulation ecological breeding barrel which is detachably arranged in a breeding pond, a plurality of breeding holes are circumferentially formed in the bottom of the breeding barrel, water permeable holes are circumferentially formed in the top of the breeding barrel, and a multi-layer composite substrate layer sequentially comprises a first soil layer, a second soil layer and a third soil layer from bottom to top, the first soil layer comprises soil and earthworm soil, and the earthworm soil contains active earthworm groups; the second soil layer comprises coco coir, perlite and vermiculite; the third soil layer comprises peat, perlite and vermiculite; the fourth soil layer comprises peat and vermiculite, and the biological-physical synergistic purification system has the beneficial effects that biological-physical synergistic purification is achieved, and the self-purification capacity of the system is improved.

The invention discloses a preparation method of an ultra-light ablation-resistant composite material with a gradient structure, and belongs to the technical field of composite material preparation. In order to solve the technical problem that a traditional material is difficult to consider low density, heat insulation property and ablation resistance at the same time, vermiculite nanosheets and water-soluble phenolic resin are compounded in a solution state, a three-dimensional porous matrix is constructed by adopting directional freeze drying, the surface of the matrix is coated with a ceramic precursor, and then high-temperature cracking is performed to form a compact ceramic layer; and gradient transition from the internal porous structure to the outer ceramic layer is realized. The ablation-resistant composite material with the gradient structure, which is low in density, excellent in heat insulation performance, enhanced in ablation resistance and high in interface bonding strength, can be obtained.

The invention discloses a water retention and disease prevention type Chinese cabbage seedling culture substrate based on a mineral composite material and a preparation method thereof, and relates to the technical field of agricultural seedling culture, the Chinese cabbage seedling culture substrate comprises the following materials: modified zeolite, activated vermiculite, decomposed straw powder, ground phosphate rock, decomposed sheep manure, sepiolite powder, a sodium polyacrylate water retention agent and a functional agent, the modified zeolite, the activated vermiculite, the sepiolite powder and the sodium polyacrylate water-retaining agent are added to form a high-efficiency synergistic effect, so that the balance of water retention, fertilizer retention and air permeability of the matrix is realized, stable water and nutrients are continuously supplied to root systems of Chinese cabbage seedlings, and the utilization efficiency of water and fertilizer is remarkably improved; the functional agent, the decomposed straw powder and the decomposed sheep manure are added to form an efficient synergistic effect, the absorption efficiency of nutrients in the matrix is improved, meanwhile, functional bacterium metabolites can promote root development, and finally, the synergistic growth promoting effect of sufficient nutrient supply and efficient nutrient absorption is achieved while it is guaranteed that the matrix is free of disease hidden danger.

The application discloses a tundish slag line dry material, and relates to the technical field of tundish refractory materials. The mass percentage of each raw material component in the tundish slag line dry material is as follows: 26-30% of 3-1mm fused magnesite, 22-28% of 1-0mm fused magnesite, 20-27% of 200-mesh fused magnesite, 1.5-2% of trisodium phosphate hexahydrate, 2-2.5% of sodium metasilicate nonahydrate, 1-1.5% of adipic acid, 4-5% of calcium carbonate, 0.3-0.5% of vermiculite, and the rest of 5-3mm fused magnesite. The application adopts a new composite binder system, solves the environmental protection problem of a traditional phenolic resin binder, and significantly improves the medium-temperature and high-temperature strength, corrosion resistance, thermal shock resistance and heat insulation performance of the magnesia dry material through the synergistic effect among the components, so that the overall optimization of the material performance is realized.

Composition and Seal for Electrochemical System and Manufacturing Method. The invention relates to a fluid composition for forming a gas-tight seal for an electrochemical system, characterized in that it comprises a main mineral filler phase and an additional mineral filler phase, the additional mineral filler phase comprising a powdered mixture of vermiculite and steatite, the mixture representing up to 30% by weight of the total weight of the composition. The invention also relates to a seal for an electrochemical cell unit formed from the fluid composition comprising the main mineral filler and the additional mineral filler, as well as a fuel cell or fuel cell component comprising one or more seals according to the invention. Figure for the abstract: Fig. 1

The application provides an ultrathin vermiculite composite film, a preparation method and application thereof, the ultrathin vermiculite composite film comprises a polyvinylidene fluoride film, a vermiculite layer with a thickness of 20-90 nm is arranged on the surface of the polyvinylidene fluoride film, and the vermiculite layer is stacked by two-dimensional vermiculite nanosheets. The ultrathin vermiculite composite film has greater conductivity, stronger ion conduction capacity, smaller membrane resistance and higher power generation efficiency. When the ultrathin vermiculite composite film is used as a permeation energy recovery film, the maximum output power density can reach 31 W / m 2 , which is much higher than the commercial application standard of 5 W / m 2 , and therefore the ultrathin vermiculite composite film can be used in the permeation energy recovery of high-salinity water bodies in nature.

The application relates to the technical field of building materials, in particular to a cementing material for preparing an assembled wall body from multiple solid wastes and a preparation method; the cementing material is prepared from 25-55 parts of fly ash, 25-65 parts of blast furnace slag, 8-10 parts of lime, 1-5 parts of desulfurization gypsum, 3-6 parts of a first mixture, 2-5 parts of a second mixture and 5-8 parts of an alkali activator; the mass ratio of metakaolin, bentonite and superfine calcium carbonate in the first mixture is 3:2:1; the mass ratio of vermiculite, expanded perlite and glass beads in the second mixture is 2:2:1. The cementing material has a more stable microstructure through the synergistic activation of Ca and Na, and the addition of the first mixture and the second mixture. 2+ and Na + The C-S-H and C(N)-A-S-H gels form a three-dimensional network, needle-shaped ettringite crystals fill pores, and the anchoring effect of brucite phase is combined, so that the mechanical properties, such as strength and durability, of the material are significantly improved.

A fire-retardant coating is characterized by comprising the following components in weight percentage: 10-30% vinyl acetate-ethylene copolymer (VAE) emulsion, 10-30% modified urea-formaldehyde resin, 5-20% expandable vermiculite, 10-30% coating additives and other fillers, 10-30% intumescent flame retardant, and 5-30% water; wherein the modified urea-formaldehyde resin is obtained by chemically coating melamine-modified urea-formaldehyde resin with polyacrylate. This fire-retardant coating not only exhibits good expansion properties and excellent fire resistance, but also possesses good water resistance.

The invention belongs to the technical field of slow-release fertilizers, and relates to a slow-release microbial humic acid compound fertilizer as well as a preparation method and application thereof. The invention provides a preparation method of a slow-release microbial humic acid compound fertilizer. The preparation method comprises the following steps: calcining vermiculite to obtain expanded vermiculite; uniformly mixing expanded vermiculite, tetrabutyl titanate and water, placing at normal temperature for 48-72 hours, drying and collecting to obtain modified expanded vermiculite; uniformly mixing the modified expanded vermiculite, bacillus subtilis and bacillus mucilaginosus to obtain a mixture; stirring is kept, a sodium alginate-humic acid mixed solution is sprayed to the mixture, a 2-5 wt% calcium chloride solution continues to be sprayed into the rotary drum, a reaction is conducted for 5-15 min for crosslinking, and finally a semi-finished fertilizer product is prepared after freezing and vacuum drying; and mixing the fertilizer semi-finished product with arbuscular mycorrhizal fungi to prepare the slow-release microbial humic acid compound fertilizer. The fertilizer provided by the invention can effectively improve the morbidity of salvia miltiorrhiza during continuous cropping and improve the quality of medicinal materials.

This invention provides an antistatic pipe and its preparation method, comprising an inner layer, a middle layer, and an outer layer arranged sequentially from the inside out. The middle layer is a porous thin-walled steel pipe, and both the inner and outer layers are made of composite materials. By weight, the composite material comprises the following raw materials: 55-65 parts heat-resistant polyethylene, 6-10 parts high-density polyethylene, 5-15 parts ethylene-ethyl acrylate copolymer, 6-10 parts sulfonated polyolefin, 2-6 parts titanate-modified vermiculite powder, 3-7 parts phosphorus-nitrogen composite flame retardant, 2-4 parts nano-indium tin oxide, 1-1.5 parts zinc stearate, 0.5-0.7 parts antioxidant, and 1.5-2.5 parts maleic anhydride-grafted polyethylene. The synergistic effect of the multiple components in this invention enables the prepared antistatic pipe to achieve breakthroughs in antistatic, mechanical, and flame-retardant properties, making it suitable for high-risk environments.

Fire-retardant arrangement (270), comprising: a fire-retardant element (271), comprising a fire-retardant material; and an outer material (273) configured to receive the fire-retardant element (271) therein, the fire-retardant material comprises vermiculite.

The present application relates to a method for preparing organic soil by geopolymer KETOS and excrement biogas residue, and belongs to the technical field of agricultural soil repair and organic waste resource utilization. The method uses geopolymer KETOS with three-dimensional network inorganic framework and multi-stage interconnected pore structure as a porous mineral framework carrier, mixes it with livestock and poultry excrement and biogas residue, and carries out aerobic combined composting, so that organic matter and microorganisms are colonized in the pores of the geopolymer KETOS, forming functional organic soil with inorganic, organic and biological composite structure. The present application synchronously solves the two difficult problems of organic waste treatment and soil structure improvement, shortens the composting period by 30% to 50%, reduces ammonia emission by more than 60%, increases water retention rate by 60% to 120%, and the obtained product has multiple functions such as long-acting soil improvement, water and fertilizer retention, nutrient slow release, etc., can replace traditional materials such as vermiculite and perlite, and has wide application prospect.

The utility model discloses a double-layer oven type fireplace, which belongs to the technical field of fireplace ovens and comprises a base, an oven body and a sealing plate. The box body is arranged above the base and is of a double-layer structure, the lower layer is a fireplace, the upper layer is an oven, vermiculite plates are arranged on the periphery and the bottom of the interior of the fireplace, an upper oven heat insulation plate is arranged on the top of the fireplace, a secondary air inlet pipe is arranged at the upper end of the upper oven heat insulation plate, and an air inlet structure is arranged on the outer side of the middle of the fireplace and the outer side of the middle of the oven. The air inlet structure comprises an air door welding plate and a front air duct plate, the front air duct plate is arranged on the outer side of the air door welding plate, mounting plates are arranged on the two sides of the front air duct plate, the middle of the front air duct plate protrudes outwards, a plurality of air inlets are formed in the middle of the front air duct plate, an air door adjusting handle is arranged on the outer side of the box body, and the air door adjusting handle is matched with the air inlet structure; the sealing plates are arranged on the base, the two sides, the back, the top face and the front face of the base. The fireplace and the oven are combined, the energy utilization rate is improved, the combustion effect is adjustable, temperature rise is rapid, and the fireplace and the oven are ornamental.

The application provides an ionic thermoelectric film, a preparation method thereof and an ionic thermoelectric power generation device, and belongs to the technical field of thermoelectric materials. The material of the ionic thermoelectric film is graphene oxide nanosheet or vermiculite nanosheet. The height of the ion transmission channel of the ionic thermoelectric film is sub-nanometer, so that the ionic thermoelectric film has nanometer ionic capillary condensation effect, and the thermoelectric potential and output power density of the ionic thermoelectric power generation film can be greatly improved.

A vermiculite laminate for thermal insulation according to the concept of the present disclosure comprises: a first vermiculite sheet; a second vermiculite sheet laminated to the first vermiculite sheet; and a cation intermediate layer between the first vermiculite sheet and the second vermiculite sheet; wherein the first vermiculite sheet and the second vermiculite sheet have pores of size from 0.2 nm to 3 nm.

The application discloses a fireproof and explosion-proof integrated coating for plugging of a transformer substation / conversion station and a preparation method thereof, and relates to the field of coatings.The coating paint comprises the following components in parts by weight: polyurea resin: 5-8 parts; graphene tube: 0.5-3 parts; nano tin antimony oxide: 0.5-5 parts; nano silicon dioxide: 20-30 parts; vermiculite powder: 30-50 parts; water glass: 20-40 parts.The application solves the problems that current organic coatings are not fireproof and inorganic coatings are prone to cracking and not explosion-proof, adopts an organic-inorganic two-component curing system to improve the fireproof and explosion-proof functions, the nano-level particles can reduce the heat conduction of the material, improve the fireproof grade, the vermiculite powder has a cavity structure, the solid heat conduction is relatively weak, and the vermiculite powder has an energy absorption and explosion prevention effect, and the coating is used for the plugging system of the conversion station, so that the problems of great construction and maintenance difficulty and long cycle of the conversion station can be effectively solved.

The invention discloses aquaculture pond bottom mud planting soil and a preparation method thereof. The aquaculture pond bottom mud planting soil is prepared from aquaculture pond bottom mud, coconut shreds, vermiculite and perlite. The method has the advantages of short preparation period, better performance than existing green planting soil and the like, and can reduce the stockpiling and disposal burden of bottom mud, reduce the culture non-point source pollution risk and save soil replacement resources.

The invention relates to a composite panel (1) for structural and / or roofing and / or decorative purposes, comprising a core (2) sandwiched between two metal plates (3). The bond between the core (2) and each of the metal plates (3) is achieved by means of an adhesive layer forming the interface between said core (2) and each of said metal plates (3). According to the invention, the core (2) comprises at least one mixture or combination of at least one material from a first family of materials including cork and mycelium, and at least one material from a second family of materials including hydraulic lime, vermiculite, calcium silicate, calcium carbonate, and cement. Figure for the abstract: [Fig 2]

The embodiments of the present disclosure relate to a fire-retardant assembly and a battery assembly comprising the same. According to one embodiment of the fire-retardant assembly comprising a fire-retardant member including a fire-retardant material; and an exterior material configured to accommodate the fire-retardant member therein, wherein the fire-retardant material may comprise vermiculite.

This invention discloses a thermally crosslinked vermiculite nanosheet membrane, its preparation method, and its applications, suitable for separating and purifying hydrogen from mixed gases. The thermally crosslinked vermiculite nanosheet membrane is prepared by ion exchange of vermiculite nanosheets, which are then assembled into a membrane. Crosslinking between the membrane layers is induced through heat treatment. By controlling the heat treatment temperature, the interlayer spacing of the thermally crosslinked vermiculite nanosheet membrane can be effectively adjusted, thus exhibiting good gas permeation flux and separation selectivity. The method of this invention requires no external crosslinking agent, is simple, environmentally friendly, and uses widely available raw materials. The resulting thermally crosslinked vermiculite nanosheet membrane has broad application prospects in hydrogen purification and other fields.

The invention discloses an anti-electromagnetic interference flame-retardant flexible control cable, which belongs to the technical field of communication equipment and is obtained by co-extruding zinc borate nanosheet composite porous vermiculite, a porous carbon / nanosheet compound, polyvinyl chloride, di-iso-decylphthalate, triphenyl phosphate and a calcium-zinc stabilizer serving as cable materials of an insulating layer in the cable. Micron-sized pores are formed between layers of acid-activated modified expanded vermiculite, a reaction monomer zinc nitrate hexahydrate is impregnated between the layers of the vermiculite, then the zinc nitrate hexahydrate serves as a zinc source, sodium tetraborate decahydrate serves as a boron source, a double decomposition reaction is carried out under the hydrothermal condition, and the zinc borate nanosheets are generated. Zinc borate nanosheets are directionally grown between layers and on the surface of vermiculite, and the zinc borate nanosheets are effectively fixed, so that the flame-retardant effect is stably exerted.

The invention discloses a microdomain environment building method for imitating wild cultivation under a morchella forest, and relates to the technical field of edible fungus cultivation, the method comprises the following steps: selecting an under-forest area with canopy density of 0.7-0.9 for ecological transformation, applying an organic material, and disinfecting; the temperature is controlled to be 15-20 DEG C by comprehensively applying canopy shading, a sunshade net, a small arched shed and the like, the air humidity is maintained to be 80%-90% through monitoring of a sensor and spraying or drip irrigation, and the soil water content is controlled to be 60%-70%; a bionic matrix formed by mixing wood sections, branches and fallen leaves is laid, and after strains are sown, the seedlings are covered with nutrient covering soil formed by mixing under-forest humus soil, turfy soil and vermiculite; selecting high-quality strains for inoculation; an Internet of Things system is arranged to monitor temperature, humidity, illumination and COO in real time, and environment factors are automatically adjusted; performing fine management according to the growth stage and adopting green prevention and control; the method can significantly improve the yield, quality and cultivation success rate of morchella esculenta, and has the advantages of being eco-friendly, low in cost and replicable.

FIELD: agriculture.SUBSTANCE: used in growing plants in phytomodules, in “carpet” and container vegetal walls. The substrate for growing plants in vertical phytostructures includes expanded vermiculite, zeolite-containing tripoli from the Khotynetsky deposit, and deoxidized high-moor peat, in the stated quantitative ratio.EFFECT: production of light, nutritious, loose, breathable soil that retains moisture well, contains silicon necessary for plants in a form accessible to them, and has a high ion-exchange capacity.1 cl, 1 tbl, 2 ex