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1883results about How to "Stable chemical properties" patented technology

Biochar mixing type protected horticultural vegetable field soil heavy metal passivant and preparation method thereof

The invention relates to a soil improvement technology and an environment protection technology and particularly discloses a biochar mixing type protected horticultural vegetable field soil heavy metal passivant and a preparation method thereof. The soil heavy metal passivant comprises the following components in percentage by weight: 50 to 60 percent of biochar, 5 to 10 percent of medical stone powder, 5 to 10 percent of diatomite powder, 10 to 20 percent of lignite and 10 to 20 percent of coal ash. The preparation method for the soil heavy metal passivant comprises the following steps of: mixing the medical stone powder which is screened by an 80-mesh sieve, the diatomite powder which is screened by an 80-mesh sieve, the lignite, and the coal ash which is screened by an 80-mesh sieve, uniformly stirring, mixing with biochar which is screened by a 20-mesh sieve, fully stirring, and mixing uniformly to prepare the soil heavy metal passivant. The soil heavy metal passivant is easy to prepare; and the effects of passivating the protected horticultural vegetable field soil heavy metal, and reducing the content of recyclable heavy metal of plant in soil can be achieved under the synergistic effects of all components.
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI

Hyperfiltration membrane or nanofiltration membrane with multi-layered composite structure and preparation method thereof

The invention relates to a hyperfiltration membrane or nanofiltration membrane with a multi-layered composite structure and a preparation method thereof. The hyperfiltration membrane or nanofiltration membrane is a polymer electrostatic spinning nanofiber membrane layer characterized in strong chemical resistance prepared through an electrostatic spinning method, a hydrophilic polymer ultra-thin separation layer obtained through interfacial polymerization, and a functional group surface modification functional layer formed through the grafting reaction of reactant gases on the surfaces of hydrophilic polymers, or a long-chain polymer surface modification functional layer formed through the grafting reaction of the reaction gases on the surfaces of the hydrophilic polymers, or a functionalgroup-containing long-chain polymer surface modification functional layer through the grafting reaction of the reaction gases with the functional groups on the surfaces of the hydrophilic polymers. The hyperfiltration membrane or nanofiltration membrane with the multi-layered composite structure has the advantages of high water flux, high cutting rate and stable chemical performances. The filtration membrane can be used for the production of domestic water, drinking water or water in special conditions, and is suitable for the medical field, food field, environmental protection field and the like.
Owner:INST OF CHEM CHINESE ACAD OF SCI

Integrated pole dual-pole board for oxidation deoxidization liquid energy-storing battery and its preparation

The invention relates to the oxidation-reduction liquid stored-energy cell, especially integral electrode dipole plate and preparation, the integral electrode dipole plate includes: multiple-arch electrode and dipole plate, viscous conducting layer which is between the dipole plate and multiple-arch electrode, that is the multiple-arch electrode and dipole plate are felt to the dipole plate via the viscous conducting material. The advantages of the invention are: the integral electrode dipole plate can decrease the contact resistance between the multiple-arch electrode and dipole plate evidently, increase the voltage efficiency and energy efficiency of the oxidation-reduction liquid stored-energy cell, at the same time the distribution of the electrolyte in electrode is more even; the conductivity of the integral electrode dipole plate is perfect, the electrochemistry property is high, the chemical property is stable, it possesses high practicality value and wide application foreground.
Owner:DALIAN RONGKE POWER

Bismuth layered perovskite-like structure oxide up-conversion luminescent piezoelectric material and preparation method thereof

The invention relates to an infrared-excited oxide up-conversion luminescence piezoelectric material of a bismuth lamellar perovskite-like structure and a preparation method thereof. The up-conversion luminescence piezoelectric material has a chemical general formula of Am-1-x-RxYbyBi2BmO3M<+3>, wherein R is selected from Er<3+>, Ho<3+> and Tm<3+>, A is selected from Bi<3>, Ca<2+>, Sr<2+>, Ba<2+>, Pb<2+>, Na<+>, K<+>, La<3+> and Y<3+>, B is selected from Ti<4+>, Zr<4+>, Nb<5+>, Ta<5+>, W<6+> and Mo<6+>, m is a positive integer not smaller than 2 and not more than 8, x is not smaller than 0.000001 and not more than 0.3, and y is not smaller than 3.0 and not more than 0.6. The up-conversion luminescence piezoelectric material is prepared by adopting a solid-phase reaction method, has the characteristics of good thermal stability, good chemical stability, easiness for synthesis, high luminous intensity and adjustable color, and can be widely applied to various aspects such as three-dimensional display, infrared detection, counterfeiting prevention, solar cells and photoelectric integration, micro-electro-mechanical systems, photoelectric sensing and the like.
Owner:TONGJI UNIV

Soil heavy metal passivant for facilities vegetable field and preparation method thereof

InactiveCN101805617AReduce the content of available heavy metalsSimple processAgriculture tools and machinesOrganic fertilisersSoil heavy metalsStone dust
The invention relates to the soil improvement technology and the environment protection technology, in particular to a soil heavy metal passivant for the facilities vegetable field and a preparation method thereof for solving the problem that due to solid heavy metal pollution, the sustainable utilization of the facilities vegetable field is influenced. The soil heavy metal passivant for the facilities vegetable field comprises the following components in percentage by weight: 10 to 30 percent of medical stone powder, 10 to 30 percent of diatomite in powder, 10 to 20 percent of zeolite powder, 20 to 30 percent of lignite and 25 to 35 percent of fly ash. The preparation method for the soil heavy metal passivant comprises the following steps: mixing the medical stone powder passing through a 80-mesh screen, the diatomite in powder passing through a 80-mesh screen and the zeolite powder passing through a 80-mesh screen with lignite and uniformly stirring the mixture; and mixing the mixture with the fly ash passing through a 80-mesh screen, sufficiently stirring the mixture and after mixing uniformly, preparing the soil heavy metal passivant. The invention has simple preparation method and achieves the effects of passivating the soil heavy metals in the facilities vegetable filed and reducing the content of heavy metals in the soil which can be utilized by the crops by synergistic effect of the components.
Owner:SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI

Production method of hot stamping foil

ActiveCN101879819ASolving Hot Stamping RequirementsEvenly paintedCoatingsThermographyPolyvinyl butyralHot stamping
The invention discloses a production method of hot stamping foil, which adopts six production process flows: release coating, protective layer coating, color layer coating, accurate aluminizing and curing glue layer coating. In the whole production process, water soluble glue, water soluble ink and water soluble gloss oil are used to realize the integrated production of the hot stamping foil, methacrylates and monomers which are emulsified and polymerized are mixed in a certain ratio, a dye leveler, thickener and the like are added in the mixture, the resulting product is coated and dried, polyvinyl butyral-based glue is coated, and the whole production of the hot stamping foil is finished. The hot stamping foil produced by the process has the characteristics of energy conservation, environmental protection and sanitation.
Owner:江苏卫星新材料股份有限公司

Method for preparing porous alumina ceramic supporting body with sol as additive

The invention discloses a method for preparing a porous alumina ceramic support body by using a colloidal sol as an addition agent, which comprises the following steps: adopting a low cost method to prepare the colloidal sol; adding the colloidal sol into mixed dry powder on the basis of aluminum oxide aggregate; and performing the processes of pugging, molding, sintering and the like to obtain a multi-channel pipe type or honeycomb type porous alumina ceramic support body. The method uses the colloidal sol as a caking agent, a sintering addition agent, and a performance improver, and makes use of the caking property of the colloidal sol, thus the dosage of organic caking agent can be reduced remarkably to solve the problem of easy cracking of binder removal sintering; and with the fine particles of the colloidal sol as the sintering addition agent, the sintering temperature can be reduced, and the dissolvability of the particles are improved, thus the sintered product does not have glass phase through microscopic analysis. The prior preparation method adopting low melting point glass phase as the sintering addition agent is improved, and the acid resistance, the alkali resistance and the high temperature strength of the porous alumina ceramic support body are improved.
Owner:XI AN JIAOTONG UNIV

Fresh-keeping packaging material and products thereof

The invention relates to a fresh-keeping packaging material and products thereof, belonging to the technical field of packaging. The invention has the technical scheme that a certain proportion of mineral micropowder of kieselguhr or sepiolite or medical stone or bentonite or tephros or perlite and the like is doped into plastics of PE, PP, PVC and the like and paper pulp, and then the mixture is made into thin films, packaging paper or packaging bags or packaging boxes or packaging cases, trays and the like; the characteristics of dispersity, air permeability, adsorbability, far infrared ray and positive and negative ion function and the like of the mineral micropowder are utilized to enable the packaging material to generate micropores, and therefore, the packaging material has a certain air permeability and adsorbability or generates positive and negative ions or far infrared rays; gas and a small quantity of moisture which are generated from packaged articles are discharged from the micropores, and harmful gas is absorbed and transferred, and thereby, the heat value of the packaged articles can be effectively lowered; microbes are killed or restrained, thereby meeting the demands of keeping fresh of live and fresh food and prolonging storage life.
Owner:钟爱民

Super-hydrophobic propping agent and preparation method

ActiveCN103131406AStable chemical propertiesImprove the effect of fracturing to increase oil productionFluid removalEmulsionQuartz
The invention discloses a super-hydrophobic propping agent and a preparation method. The propping agent comprises 94-99.49 wt% of a propping agent bone material, 0.5-5 wt% of a super-hydrophobic film and 0.01-1.0 wt% of a lubricating agent, wherein the propping agent bone material is water washed / acid washed quartz sand or ceramsites, the particle size of the quartz sand or ceramsites ranges from 0.125 mm to 2.0 mm; the super-hydrophobic film is prepared by reacting and curing by a super-hydrophobic emulsion. The method comprises the steps of spraying the super-hydrophobic emulsion to the surface of the propping agent bone material, the emulsion reacting rapidly and being cured after heating, and forming the super-hydrophobic film on the surface of the propping agent bone material to obtain the super-hydrophobic propping agent. A contact angle of the super-hydrophobic film on the surface of the propping agent and water is greater than 150 degrees. The surface of the super-hydrophobic propping agent is an oleophylic surface, is helpful for wettability of the surface to the crude oil, and plays an effect of increasing crude oil production.
Owner:CHINA PETROLEUM & CHEM CORP +1

Supported ruthenium catalyst and preparation method thereof

The invention discloses a supported ruthenium catalyst and a preparation method thereof. The preparation method is characterized in that the preparation method comprises the following steps: 1, preprocessing a carrier with a soluble alkaline earth metal salt, wherein the mass of the soluble alkaline earth metal salt accounts for 0.1-20% of the mass of the carrier; and 2, dipping the alkaline earth metal salt processed carrier with a material which comprises a primary active component metallic ruthenium and an assisted catalytic component comprising one or several of Ni, Co, Pd and Pt, wherein the mass of the primary component metallic ruthenium accounts for 0.1-5% of the carrier, and the mass of the secondary component comprising one or several of Ni, Co, Pd and Pt accounts for 0.01-5% of the mass of the carrier. The catalyst of the invention is mainly applied to the selective hydrogenation process of an aromatic ring of an aromatic compound, wherein the aromatic ring of the aromatic compound has at least one alkyl group, one ester group, one hydroxyl group or an amino group and also has at least one C1-8 alkyl group. Compared with catalysts prepared with the prior art, the catalyst of the invention has the advantages of low cost, simple preparation method, high activity, good selectivity, high safety in the operation of the aromatic ring hydrogenation, realization of the operation of the aromatic ring hydrogenation under a low pressure, and good economy.
Owner:CHINA PETROLEUM & CHEM CORP +1

Novel foam high-polymer composite and production method thereof

The invention belongs to the field of construction materials and particularly relates to novel foam high-polymer composite and a production method. The novel foam high-polymer composite comprises 10-90 parts of thermoplastic plastics, 0.5-3 parts of plasticizer, 0.5-3 parts of flexibilizer, 0.5-3 parts of tackifier, 0.3-2 parts of internal and external lubricant, 0.5-3 parts of stabilizer, 0.5-5 parts of crosslinking modifier, 0.5-12 parts of regulator, 0.5-5 parts of foaming agent, 0.5-3 parts of filler, 0-20 parts of flame retardant, 10-90 parts of inorganic powder and pigment in proper quantity. The novel foam high-polymer composite in the technical scheme is energy-saving, emission-reducing, acid-resistant and alkali-resistant, weak in temperature sensitivity and excellent in physical and chemical performance.
Owner:刘海福 +1

Collophanite flotation collector and method for preparing same

The invention relates to a collophanite normal-temperature flotation collector, in particular to collophanite flotation collector prepared from natural rubber seed oil fatty acid, belonging to the collector. The invention also relates to a method for preparing the collophanite flotation collector. The collophanite flotation collector comprises natural rubber seed oil fatty acid, tall oil, tributyl phosphate, tween 80, dodecyl benzene sulfonic acid, inorganic base and water. The collophanite flotation collector has stable chemical performance, good water solubility, high flotation speed, suitable viscosity and strong selectivity and collection performance, is easy to diffuse in collophanite pulp, can be used for obverse floatation and reverse flotation and can generate uniform bubbles, obviously shorten the floatation time, improve the concentrate grade and reduce the content of impurities in the concentrate product.
Owner:YUNNAN CHEM RES INST

Production of TiO2 naometer light catalyzing net from foam metal carrier

A foam metal carried nano-TiO2 photocatalyst mesh with high chemical stability, air permeability, specific surface area and photo catalytic activity is prepared through dipping the foam metal substrate in the sol of SiO2, Al2O3 or aluminium silicate, drying, calcining to generate a transition layer, immersing in the sol of tetrabutyl titanate, TiCl4, or TiCl3, drying, and calcining.
Owner:SHANGHAI JIAO TONG UNIV

Environmentally-friendly, energy-saving and fireproofing lightweight roof panel, floor plate or wallboard

The invention relates to an environmentally-friendly, energy-saving and fireproofing lightweight roof panel, floor plate or wallboard, which comprises an upper surface layer, a lower surface layer and frame ribs. Insulating layers are arranged between the upper surface layer and the lower surface layer, and are cement polymer foamed plastic powder lightweight insulating plates or are formed by compounding the cement polymer foamed plastic powder lightweight insulating plates and any one of molded polystyrene foam plates, extruding-molded polystyrene foam plates and rock-wool slabs respectively; fiberglass alkaline-resistant mesh fabric is arranged in the upper surface layer and the lower surface layer; the frame ribs are fixedly connected to the lower surface layer; and an anticorrosion steel reinforcement frame is arranged in the frame ribs. In the environmentally-friendly, energy-saving and fireproofing lightweight roof panel, floor plate or wallboard of the invention, the lightweight insulating plates and lightweight surface layer mortar are manufactured by foamed plastic powder; the foamed plastic powder and heat-preservation foamed plastic form particles are applied to lightweight concrete; and materials for the upper and lower surface layers and the frame ribs are enhanced by two or more assorted fibers so as to fulfill the aims of lightweight, high strength, energy saving, sound insulation, fireproofing, crack resistance and durability.
Owner:辽宁际洲环保节能建材有限公司

Technique method of treatment for modifying surface of ferrous material

This invention relates to a method for surface modification of steel material or steel component by combined treatment of gaseous nitrocarburization and post oxidation. The method comprises: (1) performing vacuum washing of the steel material, and pre-oxidizing at 400 deg.C; (2) placing the steel material in a box-type nitrocarburization heat treatment furnace, introducing mixed gases of NH3, N2 and CO2, reacting at 550-570 deg.C, and cooling with oil; (3) polishing, placing in an oxidation furnace, performing post oxidation with high-temperature steam for 1 h, and polishing to obtain steel material with high wear resistance and high corrosion resistance.
Owner:上海上大热处理有限公司

Glass fiber air filter paper with high dust holding capacity and production process thereof

The invention discloses glass fiber air filter paper with high dust holding capacity, which is prepared from alkali-free glass fiber chopped strands and alkali-free glass fiber cotton in the diameter of 0.3-0.4 mu m, as well as an adhesive, wherein the glass fiber air filter paper comprises 3-8 parts by weight of the alkali-free glass fiber chopped strands and 92-97 parts by weight of the alkali-free glass fiber cotton, and the adhesive is a water repellent containing fluorocarbon. The invention further discloses a production process of the glass fiber air filter paper with the high dust holding capacity, and the production process comprises the following steps: firstly beating and dispersing raw material to obtain pulp, then performing wet process forming on the pulp to obtain wet paper, removing water in the wet paper, then performing two-sided sizing on the dehydrated wet paper, and finally drying to obtain a product, wherein the beating degree during beating is 52-56 degrees SR, suction dehydration is performed in three stages, and drying treatment is performed in four stages. The glass fiber air filter paper disclosed by the invention has the advantages of smooth and uniform surface, large specific surface area and dust holding capacity, high mechanical strength and resistance to acid and alkali corrosion.
Owner:CHONGQING ZAISHENG TECH CORP

Spraying and wind leaking stoppage polyurethane combined polyether for coal mine as well as preparation and use methods thereof

The invention belongs to the field of chemical synthesis and in particular relates to a spraying and wind leaking stoppage polyurethane combined polyether for a coal mine as well as preparation and use methods thereof. According to the invention, the polyether is prepared through formulation regulation by using HCFC (hydrochlorofluorocarbon)-365mfa and / or HCFC-245fa as foaming agents, is free of fluorine and is environment-friendly; because the boiling point of HCFC-245fa is low, prepared foam is good in size stability; a reaction type amine catalyst with low VOC (volatile organic compound) and low smell is applied, thus the problem of irritative smell is solved; and the foam prepared by using a fire retardant is good in fire retardant property, and an antistatic agent is added so as to improve the problem of high resistance on the surface of polyurethane foam.
Owner:SHANGHAI DONGDA POLYURETHANE

Optical image functional membrane

This invention discloses a kind of light imaging function membrane. Calculated in weight percents, it comprises of the following materials and dosage. The main body material 65 to 98 percent; nanometer particulate 1 to 20 percent; assistant solvent 1 to 30 percent. The mentioned nanometer particulate are dispersed in the main body material, forming the membrane with super micro ball structure from 1 to 10 micron. This invention that the light imaging function membrane uses the large quantity of micron balls as the micro lens array to change the light way or focalize to make images. Therefore the optical structure of the light imaging function membrane is well-proportioned, and the light energy using ratio is high. The images are vivid, which efficiently keep the bright spot effect, the color demitint phenomena and the color moving phenomena within limits. It has high resolving ratio and images with high plus, wide visual angle, high luminance, and high contrast, that won't be effected by the surrounding light. So it can be applied in the new-style projecting display screen of front and back projecting.
Owner:INST OF CHEM CHINESE ACAD OF SCI

Zirconium oxide sandwich composite calcining-endure plate and preparation process thereof

The invention discloses a zirconium oxide sandwich composite calcining-endure plate. The zirconium oxide sandwich composite calcining-endure plate comprises a matrix mullite calcining-endure plate and zirconium oxide paint. The matrix mullite calcining-endure plate comprises the following raw materials in percentage by mass: 20 to 25 percent of andalusite with thickness degree between 1 and 1.5 mm, 5 to 10 percent of andalusite with thickness degree between 0.5 and 1 mm, 5 to 8 percent of andalusite with thickness degree less than 0.5 mm, 10 to 15 percent of plate-shaped corundum with thickness degree between 0.5 and 1 mm, 5 to 10 percent of plate-shaped corundum with thickness degree less than 0.5 mm, 5 to 10 percent of electrical melting mullite with thickness degree between 0.5 and 1 mm, 8 to 12 percent of sillimanite powder, 15 to 20 percent of alpha-aluminium oxide (Al2O3) powder, 2 to 3 percent of silica micropowder, 3 to 4 percent of clay and 3 to 4 percent of binding agent. The zirconium oxide paint comprises the following raw materials in percentage by mass: 75 to 80 percent of zirconium oxide with granularity less than or equal to 600 meshes and 20 to 25 percent of silicasol. In addition, the invention also provides a process for preparing the zirconium oxide sandwich composite calcining-endure plate. The zirconium oxide sandwich composite calcining-endure plate has the advantages of high-temperature resistance, high mechanical strength, stable chemical properties, high stability of thermal shock resistance, long service life and high anti-stripping property.
Owner:夏卫平

Room-temperature self-repairing fiber-reinforced epoxy composite material and preparation method thereof

The invention discloses a room-temperature self-repairing fiber-reinforced epoxy composite material and a preparation method thereof. According to the method, a repairing agent is loaded in a capillary tube, and buried among fiber-reinforced epoxy composite material layers, and the repairing agent contains a certain amount of foaming agent. After being formed, the composite material is heated above the decomposition temperature of the foaming agent, so that the interior of the capillary tube produces positive pressure. When the material is damaged to cause the breakage of the capillary tube, the repairing agent can fast flow to a breakage surface and produce reaction under the promotion of pressure, thus rebinding cracks together and repairing the damage of the material. The material has the outstanding characteristics that the capillary tube can provide enough repairing agent, so that the material has higher repair efficiency; through the introduction of the foaming agent, the repairing agent in the capillary tube can be guaranteed to fast flow automatically when the material is damaged.
Owner:SUN YAT SEN UNIV

Metal and plastic composite self-lubricating material and preparation method thereof

The invention discloses a metal and plastic composite self-lubricating material and a preparation method thereof. The metal and plastic composite self-lubricating material comprises a metal layer, a plastic binding layer and a plastic working layer, wherein the plastic binding layer binds the metal layer and the plastic working layer together through a chemical bond of a molecule; one part of theplastic working layer is embedded in a drop pit of the metal layer; the plastic working layer includes the material components according to the mass percent as follows: 60-90 of polyether-ether-ketone, 5-20 of polyfluortetraethylene, 7 of graphite, 1 of MoS2 and 5-10 of aluminium oxide; and the plastic binding layer includes the material components according to the mass percent as follows: 70-90 of polyether-ether-ketone, 5-20 of polyphenyl thioether and 5-10 of aluminium oxide. By adding the plastic binding layer between the metal layer and the plastic working layer, the invention further improves the binding strength of metal and plastic, has favorable heat resistance and resistance to chemical corrosion, no environment pollution, low noise and energy saving; in addition, the usage temperature is -60 DEG C to 250 DEG C, the friction coefficient is 0.08-0.32 and the wear rate is 0.8-3.5*10<-6>mm<3> / N. m.
Owner:JIANGSU UNIV

Heavy metal stabilizer for disposing waste incineration flying ash, and usage method thereof

The invention relates to a heavy metal stabilizer for treating waste incineration fly ash and a method for using the same. Composition of alkaline substances and silicate minerals and / or adsorbents. The use method includes: fully stirring and mixing phosphate, inorganic alkaline substances, silicate minerals and / or adsorbents in proportion, and then adding waste incineration fly ash for maintenance. The invention does not contain any organic chelating agent such as dithiocarbamate or sulfide, has no secondary pollution and pollution-free; the method of use is simple, the cost is low, and it meets the benefits of energy saving and carbon reduction, economic benefits, and has good application prospects.
Owner:李杰

Integrative external wall heat insulating decorative board for inorganic cotton metal finish and preparation method thereof

The invention relates to an integrative external wall heat insulating decorative board for inorganic cotton metal finish and a preparation method thereof, wherein the heat insulating decorative board comprises a heat insulating layer and a finish layer, the heat insulating layer is molded by carrying out hybrid pressing on the inorganic cotton and inorganic salt composite cementing materials, the finish layer is a sheet metal, the heat retaining layer and the finish layer are pressed and molded integrally by an adhesive. The heat insulating layer of the heat insulating decorative board is made of a natural inorganic cotton material, thereby having excellent properties of non-toxicity, insipidity, corrosion resistance, incombustibility, acid and alkali resistance, heat insulation and preservation. At the same time, the metal finish has good flame retardant, waterproof and anti-cracking functions, the wall and the heat insulating layer are protected optimally, and the visual effects of high grade and luxury, decoration and environment beautification are achieved.
Owner:信阳天意节能技术股份有限公司

Water-based energy storage luminescence floor coating and preparation method thereof

The invention discloses a water-based energy storage luminescence floor coating, comprising a main agent and an amine curing agent, wherein, the main agent comprises epoxy resins, surface modified noctilucent powder, solid fillers, auxiliaries and solvents. The method is characterized by first evenly mixing the modified noctilucent powder, the epoxy resins, the solid fillers, the auxiliaries and the solvents in proportion, rubbing the mixture to obtain the main agents of the water-based energy storage luminescence floor coating, and then evenly mixing the main agent and the amine curing agentin proportion during coating.
Owner:山东斯泰普力高新建材有限公司 +1

Heavy metal stabilizer for treating industrial contaminated place soil, and use method thereof

The invention relates to a heavy metal stabilizer for treating industrially polluted soil and a method for using the heavy metal stabilizer. The heavy metal stabilizer consists of phosphate, inorganic Composition of alkaline substances and adsorbents. The method of use includes: fully stirring and mixing phosphate, inorganic alkaline substances and adsorbents in proportion, and then adding them to the soil of industrially polluted sites for conservation. The invention does not contain any organic chelating agent such as dithiocarbamate or sulfide, has no secondary pollution and pollution-free; the method of use is simple, the cost is low, and it meets the benefits of energy saving and carbon reduction, economic benefits, and has good application prospects.
Owner:李杰

Preparation method and application of rare earth doped NaYF4/carbon quantum dot dual-mode fluorescent nanocomposite

The invention relates to a preparation method and application of a rare earth doped NaYF4 / carbon quantum dot dual-mode fluorescent nanocomposite in the technical field of nanocomposites. The preparation method comprises the steps of mixing an aqueous dispersion solution of a rare earth doped NaYF4 up-conversion nanoparticle modified by a cationic surfactant with a carbon quantum dot solution; then, adding an alkaline solution, ethyl acetate and ethyl orthosilicate into the mixed solution; coating the surface of the rare earth doped NaYF4 particle with a silicon dioxide shell by utilizing a sol-gel chemical principle; and meanwhile, packaging the carbon quantum dot into the shell to prepare the core-shell nanocomposite. By using the preparation method, the aggregation quenching of the carbon quantum dot is effectively avoided, and the optical and chemical stability of the prepared composite is good. The obtained composite is prepared into ink, the prepared composite is applied to the anti-fake field by ink jet printing, and the composite has the characteristics of high concealing property and copying difficulty caused by dual-mode detection and is better in anti-fake effect.
Owner:HUNAN UNIV OF TECH

Method for transferring graphene patterned film by using gas-liquid interface separation method

The invention discloses a method for transferring a graphene patterned film by using a gas-liquid interface separation method. The method comprises the following steps: reducing a graphene oxide filmby using a chemical method, separating a film substrate, and transferring the film again, namely inserting a second substrate below a graphene patterned film in an inclined manner, slowly taking out the graphene patterned film, and transferring the graphene patterned film onto the second substrate. The method has the characteristics of being high in stability, simple to operate, low in cost, and the like, a complete graphene patterned film structure can be relatively well maintained, and the method is applicable to planar or curved-surface rigid or flexible substrates.
Owner:HEFEI GUOXUAN HIGH TECH POWER ENERGY

Resource-conserving type gray plastic foaming polymer composite material and preparation method thereof

The invention belongs to the field of building materials, and particularly relates to a resource-conserving type gray plastic foaming polymer composite material. The invention also relates to a preparation method of the composite material. The invention has the technical scheme that the resource-conserving type gray plastic foaming polymer composite material comprises thermoplastic plastic polyvinyl chloride (PVC), filler coal ash, an auxiliary heat stabilizer, a coupling agent, a compound stabilizer, an inside and outside lubricating agent, a plasticizing accelerating agent, a general foaming agent and a foaming regulator. The resource-conserving type gray plastic foaming polymer composite material can be used for utilizing the coal ash with a high added-value in a reclamation way, thus not only saving a great deal of calcium carbonate and timber resources, but also reducing environmental pollution and protecting the human health.
Owner:赵芳
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