195results about How to "Easy to prepare in large quantities" patented technology

The invention discloses a method for manufacturing an application substrate through photo-thermal effect, which comprises the following steps: performing light excitation on nanoparticles, and then converting light energy supplied by irradiation light rays into heat energy to further form a structure through the generated heat energy by which the application substrate with a specific surface structure is generated.

The invention provides a preparation method and applications of a magnesium oxide-supported ruthenium catalyst for hydrogen preparation through ammonia decomposition. The catalyst adopts magnesium oxide as a carrier, adopts a metal ruthenium as an active component, wherein the ruthenium particles are uniformly dispersed on the surface of the magnesium oxide, and the ruthenium content accounts for0.5-10% of the total weight of the catalyst. According to the present invention, the magnesium oxide-supported ruthenium catalyst precursor is prepared by using the precipitation deposition method, the obtained product is washed and dried, and the dried product is reduced in the reducing atmosphere so as to prepare the magnesium oxide-supported ruthenium catalyst with highly-dispersed ruthenium; the preparation method is simple, and uses the low-cost magnesium oxide as the carrier; and the prepared magnesium oxide-supported ruthenium catalyst has advantages of good metal dispersibility, high catalytic activity, good stability and the like, and can be used for catalyzing the hydrogen preparation process using ammonia decomposition.

The invention discloses a micro-nano scale wave structure in a macroscopic composite material and a preparation method thereof, and belongs to the technical field of functional composite materials. Atwo-dimensional nano-material dispersion solution is self-assembled to form a macroscopic structure including a thin film, gel and the like; a carbon-nitrogen compound is generated by utilizing thermal chemical reaction and the state of a two-dimensional composite material is regulated and controlled to form the micro-nano scale wave structure. The micro-nano scale wave structure disclosed by theinvention has the characteristics that a preparation technology is simple, the size and shape of the composite material are easy to regulate and control, the mechanical elasticity, an electronic structure or a surface state of the material is adjustable and the like; a foundation is laid for researches and application of an assembled macroscopic material to the fields including flexible conductors, micromechanical electronics and flexible energy storage devices, catalytic carriers and the like.

The invention provides a nitrogen-doped and carbon-coated magnetic nanoparticle composite microspheres and a preparation method thereof, and belongs to the technical field of materials with an electromagnetic function. According to the method, a glycerin metal complex and a nitrogenous organic compound are taken as main raw materials. A monodispersed glycerin metal complex precursor is prepared according to a self-template method at first; then the surface of the precursor is coated to form a shell by virtue of in-situ polymerization for nitrogenous organic monomers, and a carbon source and anitrogen source are introduced; and finally, calcining is carried out under an inert gas, and a core is subjected to thermal decomposition to form magnetic nanoparticles while the shell is carbonizedto form nitrogen-doped carbon. The nitrogen-doped and carbon-coated magnetic nanoparticle composite microspheres are green and environment-friendly, and efficient and time-saving in preparation process, and suitable for being prepared in a large scale; the electromagnetic parameters of the composite microspheres and the sizes of the magnetic nanoparticles can be regulated and controlled by changing the mass ratio of metal salt to the nitrogenous organic monomers, and an annealing temperature, so that impedance matching and attenuation characteristic are achieved; and the prepared composite microspheres are high in absorption intensity for electromagnetic wave, wide in effective absorption frequency band, easy to prepare in a large scale, and capable of meeting many use needs.

The invention discloses a method for preparing pathogenicity aeromonas hydrophila bacteria inactivating vaccine, which comprises the following steps: firstly, inoculating the pathogenicity aeromonas hydrophila bacteria separated from the brown paralichthys olivaceus with abdominal dropsy through PCR detecting to the common LB culture medium to be cultured so as to reach a certain density; secondly, inactivating the bacteria by using formaldehyde solution; thirdly, collecting the thalli by using centrifugal culture and then diluting the thalli by using physiological saline so as to get the pathogenicity aeromonas hydrophila bacteria inactivating vaccine. The preparing method is rapid, simple and convenient in operation, and easy in batch preparing; the gotten vaccine is a pure biological agent which does not has any toxic and side effect and does not cause pollution to the meat quality of the paralichthys olivaceus and the surrounding water. The immunity protecting rate reaches 80 percent by using the vaccine prepared by the method to inoculate brown paralichthys olivaceus so as to radically curb the spreading of the pathogeny. The invention provides new approach for preventing and curing the epidemic abdominal dropsy of brown paralichthys olivaceus.

The production process of non-inflation tyre includes: preparing one inner tyre frame; setting the inner frame inside mold and rotating injection or jetting formation to produce outer rubber layer with at least one perfusion hole; perfusing inner tyre material via the perfusion hole; foaming the inner tyre material for the close combination among the inner tyre frame, the inner tyre material and the outer rubber layer. The non-inflation tyre includes one inner tyre frame; one outer rubber layer with at least one perfusion hole and formed through rotating injection or jetting formation; and one inner tyre layer of foamed material combined closely.

The invention discloses a preparation method for graphene. According to the method, the graphene is obtained by reduction and oxidization by adopting a food antioxidant. The preparation method is green, safe, mild and simple in the preparation process; and the obtained grapheme is high in quality and benefits mass preparation. The graphene prepared by the method has potential application value in aspects of separation, enriching, a composite material based on the grapheme and the like.

The invention discloses a preparation method of a field-induced nonlinear conducting composite material, a prepared composite material and an application thereof and relates to the field of nonlinearconducting composite materials. The preparation method comprises the following steps: taking KH560, ethanol and deionized water to obtain a solution A; adding GO into the solution A to react for 3-5 hours at 75-85 DEG C to obtain a suspension B; adding alkali into the suspension B till the pH is 10, adding hydrazine hydrate to be dispersed, heating the mixture to 85-95 DEG C to react for 5-7 hoursto obtain a suspension C, washing, suction filtering and drying the filter cake to obtain RKGO powder; mixing the RKGO powder, epoxy resin E-51 and acetone to obtain a suspension D, carrying out a reaction at 75-85 DEG C till the acetone is volatilized fully and cooled to 45-50 DEG C, adding a 2-ethyl-4-methylimidazole liquid to react, and extracting bubbles to be cured to obtain a composite material, wherein the RKGO filling mass fraction in the composite material is 0.75-1.50%. The preparation method is simple, low in cost, short in reaction time and easy to prepare massively. The preparedcomposite material is light in weight, good in uniformity and high in conducting nonlinear coefficient, and can be used in the fields of overvoltage protection, lightning stroke and surge protection,static prevention and self-adaptive electromagnetic pulse protection.

The invention refers to a manufacturing method of a porous carbon material, comprising the steps of: dissolving a surface active agent and a carbon source material in a solvent to form an organic template precursor solution; manufacturing a silicate aqueous solution; pouring the organic template precursor solution in the silicate aqueous solution to separate out an intermediate product which includes a surface active agent, a carbon source material and a silicon oxide template; heating the intermediate product to carbonize the intermediate product; and removing the silicon oxide template to form a porous carbon material. The invention also refers to a manufacturing method of the porous carbon material.

The invention discloses a supermolecule heterojunction organic photocatalyst and a preparation method and an application method thereof. The photocatalyst is a BiOCl/PDI photocatalyst. Sheet shape BiOCl is prepared by a hydrothermal method; and perylene diimide (PDI) is synthesized by an organic synthesis method. BiOCl and PDI are taken as the raw materials to synthesize the BiOCl/PDI photocatalyst, or BiOCl and acidified PDI are taken as the raw materials to synthesize the BiOCl/PDI photocatalyst. The invention also provides an application method of using the photocatalyst to degrade organicmicro-pollutant wastewater. The preparation technology of the prepared BiOCl/PDI supermolecule photocatalyst is simple; the output is large; organic micro-pollutants in water can be efficiently degraded under a photocatalytic condition and a neutral condition without adding any oxidant; and the photocatalytic effect on cation type pollutants is better.

The invention discloses a novel carbon fiber with a spiral structure and a preparation method of the novel carbon fiber. The carbon fiber comprises a straight carbon fiber and a spiral carbon fiber, wherein the spiral carbon fiber is grown on the surface of the straight carbon fiber. The preparation method of the novel carbon fiber comprises the following steps of: (1) preparing an aqueous solution, wherein the total molar concentration of metal ions of the aqueous solution is 0.05-0.25 mol/L; (2) impregnating the carbon fiber in the aqueous solution prepared in the step (1); (3) calcinating the carbon fiber treated in the step (2) for 1-2 hours in a nitrogen or inert atmosphere at the temperature of 350-450 DEG C, and then introducing in hydrogen into the nitrogen or inert atmosphere to carry out reduction on the carbon fiber for 0.5-2 hours at the temperature of 450-550 DEG C; and (4) heating the carbon fiber treated in the step (3) to 620-750 DEG C, and feeding acetylene gas into the nitrogen or inert atmosphere to carry out reaction for 45-120 min at the pressure of 2-110 KPa, thereby obtaining a combination with a spiral carbon fiber grown on the surface of a straight carbon fiber. The carbon fiber with the spiral structure disclosed by the invention not only can improve the mechanical properties of a composite material, but also can endow the composite material with special functions. The method disclosed by the invention is advantageous to the large-scale preparation of spiral carbon fibers; and the method is simple in preparation process, easy to control, and low in cost.

The invention provides a phosphaphenanthrene compound and a preparation method and application thereof. The compound is a compound shown in the formula I or a stereisomer, a geometrical isomer, a tautomer, a hydrate, a solvate, ester and pharmacologically acceptable salt of the compound shown in the formula I, wherein R, X and Y are as defined as in the instruction book. The compound has the goodsynergistic flame retardation effect, can be served as a fire retardant, is suitable for flame retardation in high polymer materials, and is particularly suitable for preparing the high polymer materials such as epoxy resin with the flame retardation property. The formula I is shown in the description.

The invention provides a new method for synthesizing paricalcitol, comprising the following steps of: a. reacting a compound II with alkali, then adding a compound I, carrying out a Julia reaction to generate a compound III; b. reacting the compound III with a fluorine-containing reagent to remove the protecting group so as to obtain a compound IV; c. removing the protecting group of the compound IV under acidic condition to obtain the product of paricalcitol. The method for synthesizing paricalcitol disclosed the invention has the advantages of low cost and high yield, and is simple in operation and easy in industrial production.

The invention relates to the field of medicines and daily chemicals, in particular to a periplaneta americana new polypeptide for promoting tissue repair and application of the periplaneta americana new polypeptide, the structure of the periplaneta americana new polypeptide is shown as a formula I, and the periplaneta americana new polypeptide is named as a tissue repair factor PA1. The new polypeptide can promote proliferation of mouse embryo fibroblasts and migration of human immortalized epidermal cells even at a low concentration, has low toxic and side effects and has a good application prospect, so that the polypeptide can be used for preparing medicines for treating wounds, scalds and ulcers or cosmetics and daily chemical products for improving skin beauty.

The invention discloses a preparation method of cellular three-dimensional graphene. The preparation method comprises the following steps: performing ultrasonic dispersion and mixing of graphene oxide and phthalocyanine compound to obtain a graphene oxide/phthalocyanine composite precursor; and sintering the graphene oxide/phthalocyanine composite precursor by a temperature programmed sintering method through a solid-phase cracking process under inert gas protection for cracking and self-assembly of the raw materials to finally obtain a cellular three-dimensional graphene material. The preparation method disclosed by the invention has the advantages of simple process, high product purity and industrialization promotion; and the prepared composite material can be applied to the fields such as new energy, radiating materials and catalysts.

The invention discloses an artificial simulation hydrogenase of an aromatic ether dendritic polymer. The artificial simulation hydrogenase has the following two molecular structures of a molecular structure (I) and a molecular structure (II), wherein X is the aromatic ether dendritic polymer and has a structural formula shown in the description, R1, R2, R3 and R4 are carbonyl, isocyano, triphenylphosphino, trimethylphosphino, triethylphosphino, tributylphosphino or tripyzzolephosphino. Compared with natural hydrogenase, the artificial simulation hydrogenase of the aromatic ether dendritic polymer disclosed by the invention has good stability and is convenient to store; the artificial simulation hydrogenase is firstly used as a proton reduction catalyst for hydrogen production by water decomposed under catalysis of visible light; during hydrogen production, the catalyst has a stable property and a rather high hydrogen production catalytic activity; so far, the artificial simulation hydrogenase is an artificially synthesized artificial simulation hydrogenase with a highest catalytic activity.

The invention relates to linoleic acid modified glucan and a preparation method of a polymeric liposome. Glucan reacts with linoleic acid to form an amphiphilic high-molecular linoleic acid modified glucan. Then the linoleic acid modified glucan is dissolved in dichloromethane, and prepared into high-molecular liposome according to a reverse evaporation method.