5123results about How to "Chemically stable" patented technology

An object of the present invention is to provide an inorganic phosphor having fluorescence properties emitting an orange or red light which has a longer wavelength as compared with the cases of conventional sialon phosphors activated with a rare earth. The invention relates to a design of white light-emitting diode rich in a red component and having good color-rendering properties by employing a solid solution crystal phase phosphor which uses as a host crystal an inorganic compound having the same crystal structure as that of a CaSiAlN3 crystal phase and to which M Element (wherein M Element is one or two or more elements selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb) is added as an emission center.

Disclosed herein are methods of preparing and using doped MWNT electrodes, sensors and field-effect transistors. Devices incorporating doped MWNT electrodes, sensors and field-effect transistors are also disclosed. Also disclosed are devices comprising nanostructured electrodes and methods for measuring free chlorine in an aqueous environment. Also disclosed are diamond coated electrodes for use in electrochemical applications.

Sprayable, anhydrous and physically / chemically stable dermatological / pharmaceutical compositions, well suited for the treatment of a variety of dermatological disorders, notably psoriasis, contain: a) a therapeutically effective amount of a solubilized corticoid, notably dissolved clobetasol propionate; b) a therapeutically effective amount of a solubilized vitamin D derivative, notably dissolved calcitriol; and c) an oily phase which comprises one or more oils; formulated into d), a sprayable and topically applicable, dermatologically / pharmaceutically acceptable vehicle therefor.

The present invention is temperature sensitive medium for wax temperature controlling valve and its preparation process. The destination product is prepared with liquid paraffin containing C9-C20 components, cerate or other material and through decompression distillation, mixing, refining and other steps. During the mixing, partial commercial wax may be added to lower the production cost. The wax temperature controlling valve with the product of the present invention may be used in controlling temperature in 5-30 deg.c with the basically the same stroke each degree. The product of the present invention may be used in automatic temperature controlling device requiring homogeneous stroke, especially in heating temperature controlling valve.

Provided is a positive electrode film of a lithium battery, comprising: (i) a positive electrode material of a lithium intercalated transition metallic oxide; (ii) a lithium ion replenisher; and (iii) a conductive agent and an adhesive. The lithium ion replenisher in the positive electrode film decomposes during initial charging and then releases lithium ions, so as to make up for a loss of lithium ions forming an SEI film on a negative electrode surface, thereby improving the reversible charging and discharging capacity of the lithium ion battery. In the prepared positive electrode film, the lithium ion replenisher can be mixed in the positive electrode material or the conductive agent in advance, and can be coated on the surface of the positive electrode of the lithium ion battery as well.

The invention relates to anti-bacterial water-based paint and a preparation method thereof. The paint comprises the following components in parts by weight: 0.2-11 parts of anti-bacterial agent, 8-33 parts of nano material, 23-64 parts of water-based resin dispersoid and 0.75-18 parts of adhesive resin or plasticizer. The preparation method comprises the following steps: firstly preparing a nano silver anti-bacterial agent; mixing deionized water, the anti-bacterial agent, a wetting agent, a dispersing agent and a defoaming agent and uniformly mixing, adding the nano material, uniformly dispersing to obtain the water-based dispersoid; adding the obtained water-based dispersoid to the mixed emulsion or water-based resin dispersoid, then adding the adhesive resin or plasticizer and various conventional assistants, stirring and dispersing evenly; adding pigments or colorant; and supplementing water to obtain the anti-bacterial water-based paint. The long-acting broad-spectrum antibacterial water-based paint has high fungicidal efficiency (more than 99%) on escherichia coli, staphylococcus aureus, black varietas of bacillus subtilis and the like and can reduce the high concentrate of organic matters of formaldehyde to the range of specified concentration index.

The invention relates to a high polymer-based graphene composite material with positive resistance temperature coefficient, and a preparation method of the material. The composite material comprises a base body and conductive filler; the content of conductive material is 0.01-10wt%; all components are mixed uniformly and are formed through mold-pressing or extrusion / injection molding; and the formed material is irradiated after being dried, so that the high polymer-based graphene composite material with positive resistance temperature coefficient can be obtained. Compared with the prior art, the graphene composite material and the preparation method have the advantages that the manufacturing process is simple, less influence is caused to the performance of base material, oxidation is unlikely to occur, the resistivity is more stable, the circulation stability of the material is better, and NTC (Negative Temperature Coefficient) effect is not generated easily.

The invention discloses powder coating with super-weathering resistance, a preparation method and an application thereof. The powder coating comprises the following raw materials in parts by weight: 40-90 parts of weather-resistant polyester resin, 3-30 parts of thermosetting fluorocarbon resin, 4-50 parts of curing agent, 0.1-1.5 parts of flatting agent, 0.2-0.8 part of degasifying agent, 0-4.5 parts of defoaming agent and 4-45 parts of pigment and filler. The powder coating with super-weathering resistance provided by the invention has scientific and reasonable proportioning in the aspects of raw material composition and raw materials, fine comprehensive properties such as flexibility, hardness, adhesive force and the like, stable chemical property, easy storage, performances of acid rain, ozone, ultraviolet ray and chemical medicine resistance and the like in long-term outdoor use, environment protection and wide application range. The preparation method provided by the invention has reasonable processes, strong operability, high qualified rate of finished products and capability of realizing industrialized production.

The invention discloses a method for repairing a crack of a cement-based material. According to the method, carbonic anhydrase microorganisms are adopted for generating carbonic anhydrase used for catching CO2, CO2 is promoted to be converted into CO3<2->, and the deposition of calcium carbonate within a surface area of the crack is accelerated; the method has the advantage that the repair speed is faster than that of other methods for repairing the crack through the microorganisms. The method comprises the following steps of: inoculating bacillus mucilaginosus to a culture medium; culturing; preparing bacillus mucilaginosus concentrated bacteria liquid; immobilizing bacteria on carriers; uniformly burying calcium sources into the cement-based material during forming the cement-based material; concentrating the carriers with the bacteria immobilized into a range of 5mm under a surface area of a test part; manufacturing the crack after a part to be tested is cured; transferring into a thermostatic waterbath; continuously charging air for maintaining and repairing. The repair test result shows that the osmotic coefficient is greatly reduced after repairing for 5 days, and the crack is repaired completely after continuously repairing for 30 days.

The invention discloses a high-temperature-resistant, anti-corrosion and thermal-insulation coating which comprises components in parts by weight as follows: 45-60 parts of film-forming resin, 20-30 parts of a pigment and filler, 15-30 parts of an aid and 25-30 parts of a solvent. The invention further designs a preparation technology of the high-temperature-resistant, anti-corrosion and thermal-insulation coating. The technology comprises steps as follows: firstly, mixing the film-forming resin with the pigment and the filler, sequentially adding an antifoaming agent, a leveling agent, a coupling agent, a crosslinking agent and a curing agent, and evenly stirring the mixture at the normal temperature to obtain the high-temperature-resistant, anti-corrosion and thermal-insulation coating. The coating has the advantages of environment-friendliness, low cost, high hardness, long service life, good heat resistance, good flexibility, good high-temperature resistance and the like.

The invention provides a sugarcane sustained-release granular medicinal fertilizer comprising the components of, by mass: 0.01-3% of a pesticide, 20-50% of fertilizer effective components, 0.01-2% of trace element fertilizer effective components, 0.001-0.1% of beneficial element fertilizer effective components, 0.1-5% of a fertilizer sustained-release agent, and balance of a filling agent. The fertilizer effective components comprise N, P2O5, and K2O. The trace element fertilizer effective component comprises boron, zinc, manganese, molybdenum, copper and iron. The beneficial element fertilizer effective components comprise silicon and selenium. The sugarcane special-purposed sustained-release granular medicinal fertilizer provided by the invention can provide nutrients for sugarcane, and can control pests effectively. With the medicinal fertilizer, application effects of pesticide and fertilizer are improved, labor intensity is saved, and plantation cost is reduced.

The invention discloses a microcapsule essence perfume for cigarettes as well as a preparation method of the microcapsule essence perfume. The microcapsule essence perfume contains the following raw materials in parts by weight: 1-3 parts of essence, 0.05-0.2 part of glycerinum or / and propylene glycol, 1-5 parts of wall materials and 0.01-0.03 part of emulsifier. The preparation method comprises the steps of: mixing essence, glycerinum or / and propylene glycol to obtain a mixture, evenly stirring the mixture, adding 95% ethanol with 1-10 times weight of the mixture, and mixing and evenly mixing to obtain a mixed solution; adding wall materials and emulsifier in the mixed solution and stirring for homogenization; and sealing, standing for 1-2 hours at normal temperature, refrigerating for 15-60 minutes at the temperature of minus 20 DEG C to minus 80 DEG C, drying for 8-24 hours at the vacuum degree of 30-80MPa and the temperature of 40-80 DEG C, grinding dried products, sieving the ground products to prepare microcapsule particles, thereby obtaining the microcapsule essence perfume for cigarettes. The perfume for cigarettes is made to microcapsules, so that perfume is free from being affected by external factors, and loss and fragrance distortion caused by volatile components in the perfume for cigarettes are effectively reduced.

The invention discloses a water-based ultra-thin fire-retardant coating for steel structures. The fire-retardant coating comprises components as follows: a binder emulsion, an intumescent flame retardant system, filler, deionized water and additives, wherein the additives comprise a dispersing agent, an antifoaming agent, a mold inhibitor, an anti-flash-rust agent, a coalescing agent, a leveling agent and a thickener; the intumescent flame retardant system comprises a dehydration catalyst, a carbonizing agent and a foaming agent. The invention further designs a preparation method of the water-based ultra-thin fire-retardant coating for the steel structures. The components are mixed sequentially to be prepared into the water-based ultra-thin fire-retardant coating for the steel structures in a vertical sand mill and a dispersing tank. The prepared coating is large in adhesive force, high in hardness, good in fireproof property, good in anti-scratch performance and excellent in weather resistance and water resistance, the surface layer of the coating is fine and smooth, the decoration performance is improved significantly, and the preparation method is low in energy consumption and has the advantages that the harm to human bodies and the pollution to the environment during preparation are small and the like.

The present invention provides the preparation process of super-paramagnetic polymer microsphere. The super-paramagnetic polymer microsphere consists of polyolefin polymerized with lipophilic olefin monomer and organic monomer with hydrophilic functional radical and coated nano magnetic grains of modified ferroferric oxide. The nano magnetic grains with one surface lipophilic layer can be well dispersed in organic matter to form magnetic fluid and dispersed inside polymer microsphere to obtain super-paramagnetism. The microsphere is regular and has size of 0.1-5 micron and has magnetic ferroferric oxide accounting for 0.5-40 wt% of the whole micro microsphere. The present invention has the advantages of simple preparation process, narrow microsphere size, regular appearance, high functional radical content, homogeneous magnetism, stable chemical performance and acid and alkali resistance.

Provided are a capacitance type touch member which has a flexible or stereoscopic shape and has a light transmissive detection electrode, and a method for producing the same; and a capacitance type touch detection device provided with the capacitance type touch member. A capacitance type touch member (10) comprised of a film-like or plate-like support element (1) composed of an insulating material, which has a flexible or stereoscopic shape; a detection electrode (2) which is disposed on at least a part of one surface of the support element (1), and is composed of a light transmissive conductive layer containing a carbon nano linear structure such as a carbon nanotube; and a lead wire (3) drawn from the detection electrode (2), is produced. A capacitance type touch detection device is comprised of the touch member (10) and a capacitance detection circuit (60) which is electrically connected to the detection electrode (2) via the lead wire (3), to detect the change of the capacitance due to the access or contact of a human body to a touch surface (4). The detection electrode (2) may be coated with a protection film, and the surface of the protection film may be used as a touch surface.

The invention discloses a modified epoxy resin anticorrosive paint which is prepared from the following raw materials in parts by weight: 40-55 parts of a modified epoxy resin, 3-10 parts of a polystyrene rubber, 5-18 parts of mica powder, 6-15 parts of quartz powder, 3-12 parts of nano-sized iron oxide, 3-10 parts of zinc powder, 5-16 parts of ceramic micro powder, 2-6 parts of molybdenum disulfide, 2-5 parts of polytetrafluoroethylene, 3-5.8 parts of an aminosilane coupling agent, 3-5 parts of a coalescing agent, 3-7 parts of a reactive diluent, 0.3-0.7 part of a defoaming agent, 0.3-0.6 part of leveling agent, 20-35 parts of deionized water and 0.6-1.5 part of a curing agent. The modified epoxy resin anticorrosive paint provided by the invention is strong in force of adhering to base materials, good in anticorrosive performance, high in impact strength and excellent in weather fastness.

A quaternary ammonium salt of the formula (1), electrolytic solution and electrochemical device using the salt wherein R1 is straight-chain or branched alkyl having 1 to 4 carbon atoms, R2 is methyl or ethyl, and X− is a fluorine-containing anion.

The invention relates to masonry mortar special for self-insulation walls, which is a powdery mixture and consists of the components with the following weight portions of 52-68 portions of cementing materials, 20-36 portions of gradation aggregates, 12-25 portions of vitrified hollow micro-pearl, 0.2-0.26 portions of redispersibility emulsion, 3-12 portions of thickener rheology agent, 0.05-0.3 portions of water retaining agent, 0.05-0.3 portions of anti-fissure strengthening agent and 0.012-0.035 portions of anti-entraining agent. The invention has the advantages of good water retention, lowheat conductivity, high mechanical strength, good flexible crack resistance, good waterproof performance, good dry shrinkage resistance, good fireproof performance, easy construction, high performance-price ratio, energy saving performance, etc.

The invention relates to a heavy metal stabilizer for removal of heavy metal pollution and its using method. The heavy metal stabilizer contains the compound lignin-based dithiocarbamate, which is a combination of one or more of lignin-based sodium dithiocarbamate, lignin-based potassium dithiocarbamate, or lignin-based ammonium dithiocarbamate, and can be used for treatment of heavy metal pollution. After treatment with the heavy metal stabilizer provided in the invention, the heavy metal content can meet the requirements of environmental protection standards. A heavy metal ion chelate formed after the treatment is chemically stable and is difficult to cause secondary pollution. Meanwhile, the treatment cost of heavy metal pollution can be significantly reduced.

The invention discloses a solar cell with a composite dielectric passivation layer structure and a preparation process thereof. A silicon oxide film, an alumina film and a silicon nitride or silicon oxynitride film are deposited in turn on the front, back and sides of a p-type silicon substrate to form a composite dielectric film on the whole surface, and windows are opened locally to lead electrodes out. Through aluminum oxide, silicon dioxide, silicon oxynitride, silicon nitride with different refractive indexes and a back surface passivation layer with a laminated structure of the materials, the back surface recombination rate is greatly reduced, the back reflectivity is improved, the CTM of a module is reduced, and the light attenuation and heat-assisted light attenuation and the anti-PID performance of the cell are improved. The structure can be made on a boron / gallium-doped p-type monocrystalline silicon, p-type polycrystalline silicon or p-type monocrystalline-silicon-like substrate, and a passivation method based on the composite dielectric film passivation structure can be used to manufacture PERC cells, double-sided PERC+ cells and imbricate PERC cells. Based on the preparation process steps and sequence, the corresponding preparation mode and the process parameter range of the laminated structure, the making of the cell can be well completed.

The invention discloses a measurement method of a volatile organic compound in tobacco lining paper with high determination accuracy and good repeatability, which is suitable for simultaneously determining dozens of volatile organic compounds. The measurement method is as follows: taking fluorobenzene as an internal standard substance; using headspace gas chromatography for measuring the content of the volatile organic compound in the tobacco lining paper; wherein a detector in the headspace gas chromatography is a mass spectrometry detector. The measurement method takes the fluorobenzene as the internal standard substance, uses the headspace gas chromatography / mass spectrometry for measuring the content of the volatile organic compound in the tobacco lining paper, and has the following advantages that the fluorobenzene has stable chemical property and are very similar to determinand in every performance, and the peak time appears in the middle of 19 target VOCs to be detected; therefore, the fluorobenzene is the very suitable internal standard substance, can eliminate the influence of ground substance in the tobacco lining paper on the measurement, causes materials which can not or are difficult to peak to be measured, and has high measurement accuracy and few interference factors.

A preparing method for a crystallite wear-resistant ceramic ball belongs to a technical field of abrasive media, which is characterized in that: firstly preparing a superfine material adopting wet ball milling, spraying and prilling; then rolling moulding; finally the crystallite wear-resistant ceramic ball with a diameter of 0.5-50mm after drying, firing and polishing. The inventive method has lots of advantages such as little equipment, low cost, large output and easy expansion; meanwhile, the ceramic ball is high-density, wear-resistant and stable.

The invention relates to a harmless and comprehensive utilization method for vanadium-extraction liquid leached residue (in particular, low-sodium roasted vanadium-extraction liquid leached residue). The method is characterized by comprising the following steps of: taking the vanadium-extraction liquid leached residue as a raw material, extracting the valuable elements, such as vanadium, aluminum, ferrum, phosphorus and the like by carrying out a series of treatments, such as acid leaching, ion exchange, stripping liquid purification, ammonium polyvanadate precipitation, ammonium polyvanadate pyrolysis, and aluminum-ferrum-phosphorus precipitation for a solution obtained after carrying out ion exchange, wherein the liquid leached residue can be harmless and can have chemical stability; and then, mixing the chemical stability with a limestone crushed material and cement, grinding, moistening by using water, then, briquetting, stripping and carrying out natural curing to form a baking-free brick which meets the requirements of the GB6566-2001 on decorative materials.

The invention relates to an elastic plugging agent which comprises the following components in parts by weight: 1 part of elastic temporary plugging particles and 0.1-10 parts of a bridging agent, wherein the elastic temporary plugging particles are prepared in such a way that a monomer, an initiating agent, a dispersing agent, rigid solid particles and elastic gel are added into water, stirred uniformly, heated to 60-150 DEG C, and dried after reaction is finished. The elastic plugging agent provided by the invention plays a unidirectional plugging effect, and has favorable adaptability to holes with inlets in different shapes owing to the characteristic of variable elasticity.

This invention provides a fluorescent substance composite glass, which is chemically stable, has a large size and a small thickness, is uniform in thickness, and, at the same time, has a high energy conversion efficiency, and a fluorescent substance composite glass green sheet and a process for prooducing a fluorescent substance composite glass. The fluorescent substance composite glass is produced by baking a mixture comprising a glass powder and an inorganic fluorescent substance powder and is characterized in that, when light having a luminescence peak in a wavelength region of 350 to 500 nm is applied, the efficiency of conversion of energy to a visible light wavelength region of 380 to 780 nm is not less than 10%.

The present invention relates to a paving method of the paving layer of the bridge deck of a steel box girder bridge. A resin infusion type paving method of the composite structure of the asphalt concrete steel box girder bridge deck includes three steps: (1) the sand blasting and the derusting of the steel plates of the steel box girder bridge deck; (2) the preparation of materials: (a) the preparation of high-viscosity modified asphalt; (b) mineral aggregate gradation; (c) the preparation of large pored asphalt concrete; (d) the preparation of thermoset resin grouting material; (3) The pavement of the paving layer of the bridge deck: (a) The large pored asphalt concrete is paved on the steel plates of the steel box girder bridge deck, the pavement thickness is 2cm to 4cm, and after final pressure, a large pored asphalt concrete skeleton layer is formed; (b) While the large pored asphalt concrete skeleton layer is still in a hot state, the thermoset resin grouting material is grouted into the large pored asphalt concrete skeleton layer; (c) After the maintenance of three days, a layer of bonding oil is sprinkled, and an asphalt abrasion surface layer with the thickness of 4cm is paved. The paving method is characterized in good interface cohesive property and simple and convenient construction process.

The invention discloses nano biological filler for purifying aquaculture wastewater in a biological filter tank and a preparation method of the nano biological filler. The biological filler comprises an EM rejuvenation solution and an adsorption carrier of the EM rejuvenation solution, wherein the EM rejuvenation solution is a product obtained by performing mixed fermentation on an EM stock solution, molasses and deionized water; the adsorption carrier is obtained by performing mixed pressing on composite nano powder, kaolin powder and modified bentonite; the composite nano powder is a product obtained by performing mixing and high-temperature sintering on nano-level aluminum oxide, titanium dioxide and silicon dioxide; modified bentonite is prepared from sodium diethyldithiocarbamate modified original soil. The preparation method comprises the following steps: pressing adsorption carrier particles; fermenting to obtain the EM rejuvenation solution; dipping the EM rejuvenation solution by using the adsorption carrier to obtain the nano biological filler. The obtained nano biological filler is high in pore volume, high in cell adsorption capacity, large in specific surface area and strong in stability, has a good treatment effect on aquaculture sewage, and can be used for rapidly removing ammonia nitrogen, phosphorus and heavy metal ions in an aquaculture water body.

The invention relates to a phosphorus fixing film applied to diffusive gradients in thin-films measurement technology. A fixing film and dispersion film superposed structure is arranged in the diffusive gradients in thin-films measurement technology, ions pass through a dispersion film in a dispersion way and is captured by a fixing film immediately to form the linear gradient distribution on the dispersion film. The phosphorus fixing film capturing phosphorus ions is characterized by using zirconium dioxide powder and acrylamide as raw materials, the raw materials are uniformly mixed to form mixed solution according to the weight volume ratio of 1:1.5-1:4, the mixed solution is slowly infused into a clearance of two glass plates clamping a u-shaped plastic sheet, the glass plates are placed for 2-4h horizontally at lower temperature of 10-15 DEG C after bubbles are removed, the temperature is risen to 30-35 DEG C after the zirconium dioxide powder is freely settled so as to enable the mixed solution to be gelated to form a film, the film has higher absorption capacity ratio to phosphate radicals than the prior iron film material by at least 4 times under the condition that the pH value is 5-9, so the analysis requirement of the DGT technology to phosphorus in different environment media is completely met.

The invention belongs to the technical field of fine chemical engineering, particularly relates to a composition for a cleanser and application thereof in cleaning water scales and rusty scales on various commercial unit surfaces, and discloses a composition for a cleanser and application thereof. The composition for a cleanser contains the following components in parts by weight: 1 part of organic phosphonate, 0.15-1.5 parts of dispersant, 0.02-0.75 part of reducer, 0.02-0.75 part of wetting agent and 0.002-0.075 part of corrosion inhibitor. The composition disclosed by the invention satisfies the requirements for environmental protection, and is suitable for cleaning water scales and rusty scales on various metal surfaces, such as carbon steel, stainless steel, brass, red copper, aluminum and the like. The composition has the advantages of thorough scale removal and favorable corrosion inhibition property, does not need special passivating treatment after cleaning, and can be directly put into normal operation, so that the whole cleaning process is simpler and easy for popularization.

The invention discloses a method for preserving nucleic acid amplification reagents at normal temperature. Partial nucleic acid amplification reagents or all reagents are converted to solid state through a solidifying process and preserved stably at normal temperature. The invention further discloses a closed nucleic acid chromatographic test paper detection kit preserved at normal temperature. The kit comprises a nucleic acid extraction reagent of a sampler, the nucleic acid amplification reagent preserved at normal temperature, a closed chromatographic test paper detection device and an innocent treatment method of nucleic acid amplification products. The closed chromatographic test paper detection device comprises immunochromatographic test paper and a closed detection device, wherein the immunochromatographic test paper is fixedly arranged in the closed detection device, and sample liquor detected cannot be contacted with external environment. In addition, the invention further discloses a method for nucleic acid detection by using the kit. According to the invention, the nucleic acid reagents can be conveyed and preserved at normal temperature and extracted simply and quickly, and the nucleic acid amplification products are hermetically, quickly and sensitively detected, so that cross infection is avoided.