616results about How to "Not easy to gather" patented technology

The invention provides waterborne digital ink-jet printing sublimation ink and a preparation method thereof. The ink comprises the following components in percentage by mass: 1 to 10 percent of disperse dye, 2 to 15 percent of dispersing agent, 10 to 60 percent of deionized water, 10 to 50 percent of water soluble organic solvent, 0.1 to 5 percent of surface active agent, 0.05 to 0.5 percent of germicide, and 0.05 to 0.5 percent of defoaming agent. The preparation method comprises the following steps of: mixing 1 to 20 percent of dispersing agent, 10 to 40 percent of water soluble organic solvent, 0.1 to 2 percent of germicide, 0.1 to 2 percent of defoaming agent, and 30 to 50 percent of deionized water, adding 1 to 20 percent of disperse dye while stirring, and grinding the mixed solution to obtain color paste; uniformly mixing 15 to 50 percent of color paste, 10 to 30 percent of water soluble organic solvent, 0.1 to 5 percent of surface active agent and 20 to 50 percent of deionized water and filtering the mixed solution to obtain the waterborne digital ink-jet printing sublimation ink. When the waterborne digital ink-jet printing sublimation ink is used in a large-sized ink-jet printer using waterborne ink, the good printing smoothness and the water retention of a printing head are achieved, and the preparation process is simple.

The preparation process of catalyst material containing nano molecular sieve includes: mixing acid silicon and/or alumina sol with pH 1-4 and containing SiO2 and/or Al2O3 10-50 wt% and molecular sieve slurry with pH 9-14 and containing nanometer molecular sieve 10-50 wt% in the weight ratio between SiO2 and/or Al2O3 to molecular sieve of 0.2-2; forming the mixture of pH 7-9.5 into gel; and dryingand crushing or shaping the gel.

The invention relates to a method for preparing a core-shell structure metal/polymer nanofiber membrane. The prepared fiber membrane uses a polymer as a nuclear layer and uses a nano-metal as a shell layer; the polymer can be polyvinyl pyrrolidone, polyvinyl alcohol, polyoxyethylene, polylactic acid, polyacrylonitrile, hyaluronic acid, chitosan and the like; the nano-metal shell layer comes from metal salt silver nitrate or copper chloride. The core-shell structure metal/polymer nanofiber is prepared by utilizing the electrospinning technique; by controlling the process parameters, the concentration of polymer, the content of metal salt and the proportioning of solvents, the metal/polymer nanofiber membrane is prepared; the fiber membrane has high application value on tissue engineering, recovery of wound, drug transportation, photoelectricity and the like.

The invention discloses a preparation method of a nano-silver alginate fiber. The preparation method comprises the following steps of: preparing an alginic acid silver complex which is a precursor of nano-silver by using algal polysaccharides and soluble silver salts, and then preparing a sodium alginate based nano-silver colloid system through a chemical reduction method; then adding fiber-grade sodium alginate into the sodium alginate based nano-silver colloid system to obtain a nano-silver algae spinning solution; and finally, obtaining a nano-silver algae primary fiber through wet spinning, and carrying out stretching, sizing, drying and oiling treatments to obtain the nano-silver alginate fiber. The prepared nano-silver alginate fiber integrates the excellent performances of the nano-silver and the alginate fiber, so that the novel fiber has excellent flame retardance, biocompatibility, moisture absorption permeability and the like, also has excellent antimicrobial performance, antistatic performance and irradiation resistance and can be widely used in medical treatment, the fire-fighting field, the military field, the aerospace field, the health textile field and the like.

The invention relates to a platinum-tin catalyst of low-carbon alkane dehydrogenation and a preparation method thereof, and mainly solves the problem that in the prior art, in high temperature and carbon burning processes of a catalyst, metal platinum particles are easy to coalesce to grow up to affect the stability of the catalyst. According to the platinum-tin catalyst of low-carbon alkane dehydrogenation and the preparation method thereof, a technical scheme is adopted to well solve the problem, the technical scheme is shown as follows: first introducing assistants of alkalinous metals such as calcium, magnesium and the like into an alumina carrier by a coprecipitation method to get a compound metal oxide carrier, then using a dipping method to load tin and platinum components, namely dipping an aqueous solution of soluble salts of the platinum and tin components, and thus obtaining the platinum-tin catalyst by drying, roasting and water vapor treatment. The platinum-tin catalyst of low-carbon alkane dehydrogenation and the preparation method thereof can be used in industrial preparation of the catalyst for preparing low-carbon olefin by low-carbon alkane dehydrogenation.

The invention discloses a novel electromagnetic shielding nanocarbon conductive fibrous material and a preparation method thereof, and belongs to the field of a nano-material technology. The material comprises the following components: graphite, a nanometer carbon fiber, a conductive polymer, a polymer adhesive, a dispersant, alkali metal fluoride, a metal catalyst, a conductive metal and a surface conditioning agent. The preparation method comprises the following steps: the graphite is subjected to pretreatment with alkali metal fluoride; the nanometer carbon fiber is oxidized by an acid mixture, the surface conditioning agent and the conductive metal are added separately, and a heating treatment is carried out; after the pretreated graphite and the pretreated nanometer carbon fiber are dissolved, the dispersant, the conductive polymer and the polymer adhesive are added for blending, and ultrasonic dispersion, ozonization treatment and grinding are carried out to form a homogeneous solution; a chemical blend is blended with the obtained solution, and the nanocarbon conductive fibrous material is prepared by a electrostatic spinning method. The novel electromagnetic shielding nanocarbon conductive fibrous material prepared by the invention has good electromagnetic shielding performance, and does not have toxicity and any carcinogenic substances; the novel electromagnetic shielding nanocarbon conductive fibrous material can be used for manufacturing radiation-proof clothes and the like.

The invention provides a two-dimensional nanosheet and a preparation method and usage thereof. Through a means of solution stripping, the two-dimensional nanosheet which is large in sheet layer size,high in quality and small in defect number and mainly takes a single layer is prepared. The morphology of the two-dimensional nanosheet is represented through an optical microscope, a scanning electron microscope, a transmission electron microscope and an atomic force microscope. A Raman spectrum is utilized to represent that the two-dimensional nanosheet obtained through solution stripping and atwo-dimensional nanosheet obtained through a chemical vapor deposition method have the equally high crystalline quality. An infrared transmittance spectrum is utilized to represent successful modification of organic matter to the two-dimensional nanosheet. Research results show that the two-dimensional nanosheet synthesized through the preparation method has the advantages of being large in size,high in quality, small in defect number, easy to modify and the like.

The invention relates to a light gauge aluminum foil woolen produced with AL-Ti-C wire refiner and a preparation method. The iron-silicon rate of the woolen ranges between 4.3-5.3. The process of the preparation technology is sequentially as follows: material preparation, batching, feeding, melting, stirring, primary refining of a smelting furnace, drossing, sampling, ingredient adjustment, secondary refining of the smelting surface, drossing, converter, primary refining in a holding furnace, intensified refining in the holding furnace, online addition of AL-Ti-C wire intermediate alloy refiner, Ar online degassing, filtration, continuous casting into 7.0-7.5mm cast rolling plates, cold rolling, high-temperature homogenizing annealing of a primary sheet strap, cold rolling, trimming of a rereeling machine, cold rolling, intermediate annealing of a secondary sheet strap, cold rolling to 0.26-0.32mm, trimming of the rereeling machine, and packaging. The cost is low, the quality is stable, the calendaring of the aluminum foil and grain refining are good in effect, and the probability of generating pinholes is low during production.

The invention discloses several non-peripherial substituted phthalocyanine metal complexes and making method, which introduces functional group into position a (position 1(4), 8(11), 15(18) and 22(25)) of phthalocyanine complex.

The invention discloses a heat radiation structure of a circuit module and an outdoor unit of a variable-frequency air conditioner. The heat radiation structure comprises a circuit board (1), a mounting support (2), electronic devices (3) and a heat radiator (4), wherein the electronic devices penetrate one side of the mounting support to be connected with a circuit board on the other side, and the heat radiator is abutted against the surfaces of the electronic devices; a zigzag structure (21) used for reducing mutual contact area is formed on the contact surface between the circuit board and the mounting support. Furthermore, the heat radiation structure comprises an electric control box (5), various parts are sequentially stacked in the electric control box, the heat radiator extends out of the electric control box, and an air inlet passage (7) facing the heat radiator is formed on the electric control box. The heat radiation structure is mounted in a case (9) via the electric control box and close to an air wheel (12) of the outdoor unit. With the zigzag structure, water accumulation is well prevented; with the mounting structure and the air passage, heat radiation effect of the heat radiator is well improved so as to radiate heat on the surface of the circuit board.

The present invention belongs to the field of superfine powder preparing technology and proposes one new kind of superfine powder preparing method and apparatus. Super high pressure technology, supercritical fluid technology and micro jet crushing technology are combined and used in preparing submicron level superfine powder. The new method needs no grinding medium and solvent, and has high energy utilization and easy separation between the product and the work medium.

The invention relates to a biological nanometer magnetic target anti-cancer drug, which is formed by coupled biological nanometer magnetic smalls and anti-cancer chemical drug. Wherein, the biological nanometer magnetic small is nanometer magnetic particle formed in magnetic bacterial cell, at 35-120nm diameter, while its main component is Fe3O4 or Fe3S4; single magnetic particle is packed by film; and the coupled anti-cancer chemical drug comprises chemotherapy drug, nucleic acid drug, radioactive nuclide or antibody drug. The invention also provides relative production that using physical adsorption couple or based on the active function group contained by smalls and anti-cancer drug, to select right coupler via chemical reaction to couple them. And the smalls has better bioavailability, less side effect, therefore, the anti-cancer drug can be accurately transmitted to ill part via external magnetic field, to reduce the contact between drug and normal organism., to realize target positioning treatment.

The invention relates to liquid-state lipid micro-particles used for delivering a cerebric medicine through a nose olfactory pathway, a preparation method thereof, and a preparation thereof. The liquid-state lipid micro-particles at least comprise a medicine, a lipid material, a penetrating agent, hydroxyethyl starch, propylene glycol and water. The mass ratio of the medicine to the lipid material is 1:1 to 1:10. The volume ratio of propylene glycol to water is 2:1 to 1:10. The liquid-state lipid micro-particles are advantaged in large drug load, high deformation capacity, simple preparation method, and high entrapment rate. The micro-particles are beneficial for the medicine to be delivered into the brain through the nose olfactory pathway and to provide curative effects. The range of appropriate medicines of the liquid-state lipid micro-particles is large, and the liquid-state lipid micro-particles are especially suitable for hormone, polypeptide, gene or vaccine medicines. With the liquid-state lipid micro-particles, preparations such as aerosols, nasal drops, and gels can be produced, such that requirements of cerebric disease medication can be satisfied.

The invention provides a cystatin C detection kit and a preparation method thereof. The kit comprises a reagent R1, a reagent R2 and a cystatin C calibration product, wherein the reagent R1 comprisesa preservative, a surfactant, an emulsifier and a buffer solution; the reagent R2 comprises a cystatin C antibody, polystyrene latex microspheres, a latex microsphere activating agent, a sealing agent, an emulsifier, a preservative, a surfactant and a buffer solution. The cystatin C antibody is slowly dropwise added to an activated polystyrene latex microsphere solution, a polystyrene latex microsphere suspension coupled with the cystatin C antibody is obtained after a stirring reaction, sealing is performed, the antibody and latex microspheres are coupled together in a chemical crosslinking manner, and centrifugation, cleaning and ultrasonic resuspension processes in conventional methods are omitted. The production process is simplified, and the kit has the advantages of low blank absorbency, high sensitivity and precision and large linear range.

The invention provides a corrosion-resistance coating of a polysilicon ingot furnace, a high temperature resistance protective layer and a preparation method thereof. The corrosion-resistance coating comprises the following components with the weight percentage: 85%-93% of mixture of carbon fibre powder and graphite powder, 1%-4% of film forming agent, 1%-3% of mixture of firming agent and dispersing agent, and 5%-12% of insulating material powder; the insulating material powder is one or two compounds of Sr3Ti2O7 and Sr4Ti3O7. The high temperature resistance protective layer comprises a carbon fibre thermal-protective coating and the corrosion-resistance coating covered on thereof. The corrosion-resistance coating of the invention causes the surface of the carbon fibre thermal-protective coating to be smooth, blocks the aggregation of impurities, has high temperature resistance and high strength, protects the carbon fibre thermal-protective coating not to be rusted, thus prolonging the service life of the carbon fibre thermal-protective coating.