136results about How to "High parcel rate" patented technology

The invention provides a paraffin wax phase change energy storage material and a preparation method thereof. The paraffin wax phase change energy storage material comprises 48 to 56.7 percent of paraffin wax, 14.2 to 32 percent of high-density polyethylene, 4 to 5.7 percent of sodium dodecyl benzene sulfonate serving as a surfactant, 10.4 to 15.6 percent of sodium alginate serving as a film forming material and 5.6 to 7.8 percent of anhydrous calcium chloride serving as a crosslinking agent. The method for preparing paraffin wax phase change energy storage material comprises the following steps: preparing a microcapsule phase change material by using paraffin wax as a core material and high-density polyethylene as supporting material and by using a melting method; and preparing millimetercapsule phase change material by using a thin film coating technique. In the invention, the technical problems of low paraffin wax mixing amount, low storage performance, leakage, low stability and the like of the conventional microcapsule phase change material are solved.

The invention discloses a freeze-dried preparation of aztreonam liposomes, wherein aztreonam is encapsulated in antioxidant-containing liposomes made of neutral phospholipids, negative charge phospholipids and cholesterol. The freeze-dried preparation has stable quality. Additionally, the aztreonam is encapsulated to minimize toxicity and adverse effects without affecting drug effectiveness.

The invention discloses linseed oil microcapsules and a preparation method thereof. The preparation method comprises the following steps of (1) performing hydrolyzing and extracting by an enzyme method to obtain linseed oil; (2) preparing an aqueous phase; (3) preparing an oil phase; (4) performing high-speed cutting emulsifying on a mixture of the aqueous phase and the oil phase by a cutter; (5)performing homogenizing on obtained emulsion by a high pressure homogenizer; and (6) performing spray drying on the obtained emulsion to obtain linseed oil microcapsule granules. The linseed oil microcapsules are high in solubility, good in emulsibility, high in stability, good in film-forming properties and high in packing rate. The linseed oil microcapsules have good mouth feel and flavor, and are safe and reliable in quality; and besides, the preparation technology is simple, mass production is convenient, and the loading quantity of the obtained linseed oil microcapsule granule linseed oilcan achieve 42%, and the microcapsule entrapping rate is 90% or above.

The invention relates to the technical field of polypyrrole synthesis and polypyrrole microcapsule synthesis, in particular to a method for synthesizing polypyrrole microcapsules. The method includes the steps that benzoyl peroxide, lauryl sodium sulfate and polyethylene glycol 2000 are mixed with deionized water, then a small amount of butanol and a small amount of ethyl alcohol are added, after stirring is carried out, peracetic acid is used for adjusting the mixed system to be strongly acidic, pyrrole monomers are added and stirred for reacting to obtain a black solid, and the black solid is washed with cyclohexane and absolute ethyl alcohol and dried in a vacuum mode to obtain the polypyrrole microcapsules. The method is low in cost and energy consumption and high in use ratio, and a wrapped core material can be released in oily solvent to serve as initiator of emulsion polymerization.

A diodegradable high-molecular microsphere carrying insulin is prepared through preparing the nanoparticles of insulin, preparing the mixed solution of different two polymers, and dual-layer coating of said insulin nanoparticles.

The invention relates to a preparation method of a glass solidifying body for halide radioactive waste.The method comprises the steps that 1, 55%-75% by weight of phosphorous compound, 15%-30% by weight of aluminiferous compound, 10%-30% by weight of sodium carbonate, 0-20% by weight of ferruginous compound and 0-30% by weight of leady compound are mixed, and powdered glass is formed; 2, 10%-30% by weight of the halide radioactive waste and 70%-90% by weight of the powdered glass are mixed, and the glass solidifying body is formed.The invention further provides the glass solidifying body for the halide radioactive waste.The glass solidifying body is used for solidifying the halide radioactive waste rich in fluorides, chlorides and the like through a sodium and aluminum phosphate system, therefore, the wrapping rate of the glass solidifying body to the halide radioactive waste is greatly increased, and the volume of the waste solidifying body is reduced.

The invention discloses a preparation method of active zirconium dioxide. The preparation method comprises the steps of firstly mixing zircon sand with a carbon reducing agent and then performing electric smelting calcining to obtain desiliconized zirconium; adding alkali and performing alkali fusion calcining to obtain sodium zirconate; hydrolyzing sodium zirconate and adding acid for neutralizing to form zirconium hydroxide and sodium salt; then adding sodium hydroxide and controlling the pH value to be 8-9; and finally washing to remove sodium salt and drying materials to obtain active zirconium dioxide. The active zirconium oxide prepared by adopting the preparation method contains zirconium dioxide of tetragonal crystal phase, has high activity and is suitable for manufacturing ferrozirconium pigment; in addition, side products generated in the preparation process does not pollute the environment and thus the environment-friendly and pollution-free effects are achieved; silicon is converted into silicon dioxide to be recycled after being subjected to electric smelting calcining; after the preparation is completed, all sodium is converted into sodium chloride or sodium sulfate to be recycled.

The present invention relates to a microphere preparation method using modified polylactic acid material as capsule material. Said preparation method includes the following steps: firstly, the capsule core material can be dissolved or dispersed in the water, the modified polylactic acid material is dissolved in the solvent which can be mixed with water-phase; then the aqueous solution of capsule core material is added into the solution of modified polylactic acid material or the solution of modified polylactic acid material is added into the aqueous solution of capsule core material or said two solutions are simultaneously added into the solvent capable of dissolving polylactic acid material or their mixed solution is added into the solvent capable of dissolving modified polylactic acid material, then they are stirred so as to obtain microsphere solution, filtered to obtain microspheres.

The invention discloses a targeted liposome mediated by the ligand molecule with biological affinity, and a preparation as well as the application thereof. The targeted liposome of antitumor drug prepared by the invention has little toxicity, good tolerance for patients and enhanced water-solubility and stability. And the invention also discloses the processing technique of the preparation. Freeze-dry liposome consists of natural or synthetic phospholipid, charged phospholipid, target material, antitumor drugs, buffer solution and freeze-drying protective agent. The processing technique comprises the procedures of the preparation of phospholipid membrane of the antitumor drug, the homogenization of the liposome, the addition of the freeze-drying protective agent, volume metering, sterilizing, split charging, freeze-drying and storage, etc. The liposome is kept under room temperature for 12 months with good stability. The entrapment rate of the liposome is over 90 percent. The granule diameter of the liposome is within 50 to 300mm. The liposome has little toxic and side effects and simple technique, thus facilitating the commercial process of the liposome.

A microwave sintering method of a coated superfine sulphide selenide cadmium red pigment for ceramic glaze is characterized in that sulphide selenide cadmium powder [CdSexS[1-x]-SiO2] coated with silica is used; 0.2-0.8 per mill by weight of sodium hexametaphosphate or OP-10 dispersant or sodium dodecyl benzene sulfonate is added before sintering; the microwave sintering mode is adopted, wherein the microwave frequency is 250MHz-250GHz, the microwave sintering temperature is 800-1500 DEG C, the sintering time is 0-10hr; and the pigment is discharged from the furnace after temperature preservation. Compared with the prior art, the method has the following advantages: the aggregation phenomenon of the coated pigment can be effectively prevented in the sintering process and the manufacturingcost is low.

The invention discloses a method for preparing a black pigment by wrapping carbon black with zirconium silicate. The black pigment with high wrapping rate is synthesized at the temperature of 1000-1100 DEG C by using high pigment carbon black or high wear-resistant carbon black or acetylene carbon black as raw materials and using a non-hydrolytic sol-gel technology. The synthesis method is simple in process, high in synthesis speed and low in synthesis temperature; and the prepared black pigment is pure in color, stable in performance, high in service temperature being up to 1300 DEG C, capable of being widely applied to high-temperature glaze materials of various ceramic products and higher in economic values.

The invention discloses rapamycin microemulsion injection for eyes and a preparation method and application thereof. In the injection, rapamycin is taken as an active ingredient and is added with a pharmaceutically acceptable carrier, and each 1,000ml of preparation contains 0.05 to 20g of rapamycin. The microemulsion injection for eyes has low cost and high stability, does not have obvious irritation and toxic or side effect on the eyes, can be used for treating retinal degenerative diseases, and particularly has obvious effect of treating age-related macular degeneration disease. The treatment effect of the injection is provided on the basis of breakthrough and discovery of a pathogenic mechanism, and the rapamycin microemulsion injection has profound significance for treating the diseases.

The invention discloses a method for preparing ferrozirconium red stain, which is characterized by comprising the following steps in turn: (1) liquid-phase reaction, which is to perform liquid-phase reaction on zirconium oxychloride, ferrous sulfate and sodium metasilicate pentahydrate in water; (2) separation and drying, which is to separate and dry solid-liquid suspended substances generated by liquid-phase reaction; (3) precalcination, which is to crush dried substances and calcine the crushed substance for 2 to 3 hours at a temperature of between 750 and 850 DEG C; (4) mixing, which is to mix products of precalcination uniformly with lithium fluoride, sodium fluorosilicate and sodium fluoride; (5) calcination, which is to calcine the mixture in the four step for 2 to 5 hours at a temperature of between 900 and 1,000 DEG C; and (6) post processing, which is to treat sintered solid substances by grinding, acid washing, water scrubbing, drying and sieving. The method for combination of liquid-phase reaction and solid-phase reaction improves the encapsulation rate of high-temperature solid-phase reaction, and synthesizes ferrozirconium red stain products which have beautiful chromogenic colors and strong chromogenic force and are stable at high temperature.

The present invention discloses a ferrozirconium red material, which is prepared from the following raw materials: silicon dioxide, an iron compound, a mineralizer, a rare earth fluoride, and zirconium dioxide. According to the present invention, the ferrozirconium red material prepared according to the formula has the following characteristics that: the wrapping rate is high, and ion is wrapped into the zirconium silicate crystal lattice in the ferric ion form so as to achieve stable color generation; and the active zirconium dioxide is adopted, and the rare earth fluoride is introduced, such that the prepared ferrozirconium red material has a good coloration effect.

The invention discloses a nanometer platinum polymer, and a preparation method and application thereof. The nanometer platinum polymer is prepared from the following raw materials of nanometer platinum, chitosan oligosaccharide, poly gamma-glutamic acid, propanediol and cross linking agents EDC/NHS. The nanometer platinum polymer obtained through preparation can be applied to medical products, in particular to the wound dressing aspect. Compared with the prior art, the obtained nanometer platinum polymer medicine has good biocompatibility and antibacterial activity; the nanometer platinum is preferably selected to be used as the medicine; propanediol is used as a lubricating agent; the medicine coating rate is higher; high degradability is realized; the swelling behavior performance is good; the raw materials are cheap and can be easily obtained; the production process is simple.

The invention discloses a method for preparing a high-color-developing zirconium-silicate-coated carbon black pigment by taking plant fiber as a carbon source. Good dispersing can be formed in zirconium silicate sol through the porous structure and spatial distribution of the plant fiber, and the high-color-developing zirconium-silicate-coated carbon black pigment which is coated compactly is obtained through hot treatment in a high-temperature inert atmosphere. The coated black pigment has the advantages of being pure in color and luster, easy to prepare, wide in raw materials, low in price, easy to obtain, green and environmentally friendly, can be applied to coloring in glazes or blanks of ceramic products and is suitable for industrialized production.

The invention relates to controllable slow-release phase transfer catalyst microcapsules and a preparation method of the controllable slow-release phase transfer catalyst microcapsules. The method comprises the following steps: sufficiently stirring sodium dodecyl sulfate, polyethylene glycol 6000, a phase transfer catalyst, a strong oxidant, an auxiliary surfactant, ethanol, a pH (Potential of Hydrogen) value regulator and a pyrrole monomer into de-ionized water solution under a room-temperature condition; centrifuging and drying to obtain the phase transfer catalyst microcapsules. Reaction is carried out on the de-ionized water so that an oil-soluble core material is easily subjected to phase transfer catalyst microencapsulation; a preparation process of the controllable slow-release phase transfer catalyst microcapsules is not only limited in the de-ionized water, and the phase transfer catalyst microcapsules with a water-soluble core material can also be prepared in an oily solvent system; a core material phase transfer catalyst is not limited to 2,2'-azobis(2-methylpropionitrile) and can be any one of ammonium persulfate, benzoyl peroxide, tert-butyl hydroperoxide, tert-butyl peroxybenzoate and diisopropyl peroxydicarbonate.

The invention belongs to the technical field of preparation of nickel-coated graphite composite powder, and particularly relates to a preparation method of a high-coating-rate nickel-coated graphite composite powder material. The preparation method of the high-coating-rate nickel-coated graphite composite powder material comprises the following specific preparation steps that S1, the surface of graphite powder is cleaned, the graphite powder is stored after being subjected to oil cleaning treatment, sensitization treatment and activation treatment; S2, graphite powder surface nickel-coated composite is carried out, specifically, the graphite powder treated in the step S1 is taken out and fully mixed with a plating solution, the plating solution comprises main salt, a reducing agent and a complexing agent; and S3, material cleaning after reaction is carried out, specifically, the nickel-coated graphite powder composite material obtained after reaction in the step S2 is taken out, the nickel-coated graphite powder composite material is washed with distilled water, and then the cleaned nickel-coated graphite powder composite material is dried. According to the scheme, the preparationprocess is simple, the nickel coating rate is high, and the product quality is improved; and the prepared excess materials are convenient to treat, and the pollution to the environment is small.