57results about How to "The preparation method is simple and easy to operate" patented technology

The present invention discloses a kind of catalyst for water vapor reformation of ethanol to prepare hydrogen and its preparation process and use. The catalyst includes composite carrier of alumina and magnesia and at least one of carried transition metal, transition metal alloy, and transition metal-RE metal mixed oxide. The preparation process includes the following steps: preparing catalyst carrier, compounding water solution of nitrate, setting the carrier into the water solution of nitrate and adding urea via stirring, evaporating to eliminate water, stoving, grinding and roasting. The catalyst has low carrier cost and simple preparation process, is used in water vapor reformation of ethanol to prepare hydrogen, and can result in low reaction temperature, high hydrogen selectivity and no generation of side products ethylene, acetaldehyde, etc.

The invention relates to preparation of polyaniline / polypyrrole composite nano fiber electrode materials with core-shell structure, comprising the following steps: (1) respectively dissolving aniline and an aniline monomer initiator into a polyaniline doping agent, then merging the mixed liquor, shaking the mixed liquor to ensure the mixed liquor to react under room temperature, centrifuging and washing the reactants to obtain fibers; and (2) adding the fibers to a polypyrrole doping agent, carrying out ultrasonic dispersion and adding a pyrrole monomer under ultrasonic action, then dropwise adding the polypyrrole doping agent solution of a pyrrole monomer initiator, keeping the system temperature at 0-5 DEG C to react, centrifuging and washing the products and drying the products, thus obtaining the electrode materials. The method is simple, low in cost and suitable for industrial production. The obtained materials show higher specific capacitance and good chemical performance stability when being used in super capacitors.

The invention discloses hexagonal boron nitride / polypropylene polymer composite and a preparation method thereof. According to the composite, polypropylene is taken as a main material, hexagonal boron nitride is taken as filler, an antioxidant, a lubricating agent and a compatilizer are added, and the composite is prepared, wherein the mass ratio of hexagonal boron nitride to polypropylene is 1: (2.2-18.8); the adding amount of the antioxidant accounts for 0.2%-1% of the total weight of hexagonal boron nitride and polypropylene, the adding amount of the lubricating agent accounts for 0.3%-1% of the total weight of hexagonal boron nitride and polypropylene, and the adding amount of the compatilizer accounts for 0.5%-1% of the total weight of hexagonal boron nitride and polypropylene. Compared with a polypropylene material matrix, the hexagonal boron nitride / polypropylene polymer composite prepared through a twin-screw extruder can enhance the mechanical property and can increase the thermal conductivity coefficient. The preparation process of the composite is simple to operate and environment-friendly, and the composite can obtain higher mechanical property and heat conductivity coefficient under the condition of the lower filler mixing amount and has important application value.

The invention relates to anti-blackening Zn-Al-Mg coating steel and a preparation method thereof and belongs to the technical field of steel rolling. The anti-blackening Zn-Al-Mg coating steel comprises a steel substrate and a Zn-Al-Mg alloy coating, and is characterized in that the Zn-Al-Mg alloy coating is prepared from, by mass, 1-4% of Mg, 1-4% of Al, and the balance Zn and inevitable impurities, and the Zn-Al-Mg alloy coating comprises an oxide film layer and a Zn-Mg containing film layer from inside to outside. The Zn-Al-Mg coating steel provided by the invention has the technical effectthat it is extremely difficult for the steel surface to darken and blacken in a complex atmospheric environment; and the preparation method provided by the invention is simple, easy to implement, lowin preparation cost and easy to use and popularize.

The invention discloses usage of manganese dioxide coated carbon particle dielectric materials as electromagnetic wave absorption materials and belongs to the technical field of wave absorption materials. A preparation method comprises the steps of adding carbon particles into a mixed solution and absolute ethyl alcohol for ultrasonic treatment, wherein the mixed solution is obtained by mixing sodium dodecyl benzene sulfonate and 10%-concentration diluted hydrochloric acid according to a mass ratio of 1 to 10; performing ultrasonic treatment for 2 hours in deionized water, adding potassium permanganate, subjecting manganese dioxide generated under the action of water bath to nucleation and growing on the surfaces of the carbon particles to form a manganese dioxide coated carbon composite structure. According to the usage, the preparation process is simple and easy to operate, and the manganese dioxide is coated evenly. The manganese dioxide coated carbon particle composite structure has outstanding conductive performance and a dielectric loss property, can be used as a dielectric loss medium and has good application prospects in the field of electromagnetic wave absorption materials.

The invention discloses high-light, elastic and easy-to-tear sport fabric. The fabric comprises warp yarn and weft yarn, wherein the warp yarn adopts cation-modified polyester yarn or cation-modified polyester double-covered spandex yarn; the weft yarn adopts cation-modified polyester yarn or cation-modified polyester double-covered spandex yarn; the section of the cation-modified polyester yarn is flat or rhombic; the cation-modified polyester double-covered spandex yarn is formed by covering spandex with two pieces of cation modified polyester yarn. The preparation method of the high-light, elastic and easy-to-tear sport fabric comprises steps as follows: preparation of the cation-modified polyester yarn, preparation of the cation-modified polyester covered spandex yarn, preparation of high-light and elastic sport fabric and preparation of the high-light, elastic and easy-to-tear sport fabric. The high-light, elastic and easy-to-tear sport fabric and the preparation method thereof are simple and easy to operate; the prepared high-light, elastic and easy-to-tear sport fabric has the characteristics of being soft, good in elasticity, high in glossiness and convenient and easy to tear and is attractive and convenient to use.

The present invention discloses a high damping performance aqueous damping coating material preparation method, which comprises: (1) preparing an aqueous emulsion, (2) adding a filler and an auxiliary agent, (3) carrying out film forming and paint adjusting: adding 8-20 parts of a diester film forming auxiliary agent, 2 parts of an aqueous dispersing agent, 0.25-0.8 part of an aqueous antifoaming agent, and 0.25-0.8 part of an aqueous wetting agent to the solution obtained in the step (2), and finally adding 3 parts of a thickener to adjust the consistency to obtain the high solid content aqueous damping coating material. According to the present invention, the operation of the high solid content high damping performance aqueous coating material preparation method is simple, and the obtained product has characteristics of wide high-polymer damping temperature, stable property and deformation resistance during a drying process, effectively improved damping performance, effectively improved elasticity modulus, good mechanical property, and good fire retardation.

The invention relates to a preparation method of single matrix LED (light-emitting diode) fluorescent powder. The preparation method of the single matrix LED fluorescent powder comprises the following steps: placing SrCO3, MgO, BaCO3, (NH4)2HPO4 and Eu2O3 into an agate mortar, and uniformly grinding, so as to obtain a precursor; placing the precursor obtained in the first step into a corundum crucible, and placing the corundum crucible in a reducing atmosphere provided by activated carbon into a muffle furnace and sintering; taking out a sample after being sintered, and grinding; after grinding, placing the ground sample into the muffle furnace and sintering, taking out the sample after being sintered, and grinding, thus the single matrix LED fluorescent powder BaSrMg(PO4)2:Eu<2+> is obtained. The preparation method of the single matrix LED fluorescent powder is simple and easy to operate and low in cost, and the obtained single matrix LED fluorescent powder has good stability and high luminous efficiency.

The invention provides a diamond / graphene composite heat conduction film. The diamond / graphene composite heat conduction film comprises a micro-grain diamond thin film and a graphene layer arranged onthe surface of the micron-grain diamond thin film. The diamond and the graphene in the diamond / graphene composite heat conduction film form an excellent heat conduction structure, and the obtained composite heat conduction film has efficient heat conduction performance. The invention further provides a preparation method of the diamond / graphene composite heat conduction film. The preparation method comprises the following steps that a substrate is provided, and the micron-grain diamond thin film is deposited on the surface of the substrate; the substrate is corroded and removed, and the self-supported micron-grain diamond thin film is obtained; the self-supported micron-grain diamond thin film comprises a to-be-nucleated surface; and a transition metal layer is deposited on the to-be-nucleated surface, the self-supported micron-grain diamond thin film with the transition metal layer deposited is placed in a hot-filament vapor deposition chamber cavity for rapid annealing treatment toobtain the diamond / graphene composite heat conduction film, wherein the annealing temperature is 800-1100 DEG C, and the annealing time is 1-5 min. The invention further provides a heat dissipation system.

The invention discloses a preparation method of gene and hydrophobic drug co-supported PEG (polyethyleneglycol) nanoparticles. The method comprises the following steps of: 1) preparing beta-cyclodextrin modified polycation solution; 2) preparing ferrocene modified polyethylene glycol solution; 3) mixing solutions in step 1) and step 2), standing after ultrasound is carried out; 4) preparing a hydrophobic drug solution; 5) dripping the hydrophobic drug solution prepared in step 4) into the solution in step 3), stirring away from light, dialyzing and lyophilizing to obtain inclusion powder; 6) preparing an inclusion solution; 7) preparing a DNA (deoxyribonucleic acid) solution; and 8) adding the solution in step 6) to isovolumetric solution in step 7), performing eddy mixing and standing to obtain the gene and hydrophobic drug co-supported PEG nanoparticles. The gene and hydrophobic drug co-supported PEG nanoparticles prepared by virtue of a host-guest effect; and the preparation method is simple and easy in operation, so that the stability of the gene and hydrophobic drug co-supported PEG nanoparticles in physiological salt solution can be remarkably improved.

The invention discloses an electroluminescent device based on a ZnO film co-doped by erbium and fluorine, a preparation method and a light emitting method, and belongs to the field of optoelectronic technologies. The electroluminescent device comprises an epitaxial silicon substrate, wherein the front of the silicon substrate is sequentially provided with a light emitting layer and a transparent electrode layer, the back of the silicon substrate is provided with an ohmic contact electrode, and the light emitting layer is a ZnO film co-doped by erbium and fluorine. The electroluminescent devicecan emit light under 6-10V forward bias voltage, that is, the Au ohmic contact electrode is connected to the negative voltage, and the ITO transparent electrode layer is connected to the positive voltage. In addition, there is only a characteristic luminescent peak of erbium ions located in a visible region and an infrared region but no characteristic luminescent peak related to a ZnO matrix in the electroluminescent spectrum.

The invention relates to a benzoxazine intermediate and its preparation method. The benzoxazine intermediate has a structural formula as shown in the following, wherein, R1 is O, C=O, S, SO2, alicyclic hydrocarbon with 3-20 carbon atoms and its derivatives, aliphatic hydrocarbon with 1-20 carbon atoms and its derivatives, or unsaturated aliphatic hydrocarbon with 2-20 carbon atoms and its derivatives; R2 is alicyclic hydrocarbon with 3-20 carbon atoms and its derivatives, aliphatic hydrocarbon with 1-20 carbon atoms and its derivatives, or unsaturated aliphatic hydrocarbon with 2-20 carbon atoms and its derivatives. Containing naphthalene ring structural fragments, the benzoxazine intermediate of the invention has excellent high temperature resistance and flame retardation, and can be widely used in composite materials.

The invention discloses an escape rope and a preparation method thereof and relates to the field of woven ropes. The escape rope comprises a rope skin (1) and a rope core (2), wherein the rope skin (1) sleeves the exterior of the rope core (2) so as to be combined and woven to form the rope, the rope skin (1) is a jacket body which is formed by twisting and pre-weaving a high-strength polyester fiber filament, a plied yarn of the high-strength polyester fiber for pre-weaving the rope skin (1) is formed by twisting three high-strength polyester fiber filaments, the rope core (2) is prepared by twisting three high-strength polyester fiber filaments, and ten high-strength polyester fiber filaments for twisting the rope core (2) are arranged. By adopting the high-strength polyester fiber filaments for preparing the rope skin and the rope core, the rope skin and the rope core are combined and woven integrally to form the rope which is compact in structure. By means of characteristics of the high-strength polyester fibers, the rope has the characteristics of being light in weight, low in ductility, high in strength and good in safety performance and is widely applied to the fields of fire safety, fire rescue, building escape, mining escape and the like.

The invention discloses rice noodles. The rice noodles are characterized by being prepared from the following raw materials in parts by weight: 50-80 parts of long-shaped rice flour, 20-30 parts of corn starch, and 5-10 parts of wheat starch. The rice noodles provided by the invention is prepared by compounding the long-shaped rice flour, the corn starch and the wheat starch as the main raw materials; and the three compounded raw materials synergistically take an effect so as to have quality of the rice noodles significantly improved. The rice noodles are convenient to eat, good in taste, lowin breaking rate and cooking loss rate, and not liable to make soup turbid. The invention further provides a preparation method of the rice noodles. According to the preparation method of the rice noodles, the long-shaped rice flour is prepared by adopting a dry process, so that, completeness of starch granules in the long-shaped rice flour is ensured; and thus, the higher nutrient content is preserved with water pollution avoided. Therefore, energy consumption is reduced; moreover, the whole preparation method is simple in processes, easy to operate and suitable for mass production.

Nutritional rice noodles and a preparation method thereof are disclosed by the invention. Rice and long-shaped rice are taken as main raw materials, meanwhile, hydroxypropyl distarch phosphate, walnut peptide, wheat dietary fibers and konjac glucomannan are added, so that the quality of the rice noodles is remarkably improved, the rice noodles have good elasticity, smoothness and hardness, and the breaking rate and the cooking loss rate of the rice noodles are reduced. The nutritional rice noodles provided by the invention are rich in nutrient substances, and the plant extract is added to prolong the preservation time of plants and improve the aging resistance of the rice noodles. The whole preparation method of the nutritional rice noodles is simple and convenient in process, easy to operate and suitable for batch production.

The invention relates to a Co / Ni-MoO2 composite electrolyzed water catalyst and a preparation method thereof, which belong to the technical field of preparation of an inorganic nano-material. According to the invention, four substances such as cobalt nitrate, nickel nitrate, ammonium molybdate and F127 are taken as precursors, the substances are ground, mixed and heated to prepare the Co / Ni-MoO2 catalyst. The preparation method comprises the following steps: taking cobalt nitrate, nickel nitrate, ammonium molybdate and F127 as reactants, and the reactants are subjected to mixing and grinding to obtain the dough-state precursor; and the precursor is respectively and successively heated at the temperature of 70 DEG C and 300 DEG C to obtain the Co / Ni-MoO2 composite catalyst.

The invention discloses an aqueous anti-corrosion coating which is characterized by consisting of the following components in parts by weight: 40-60 parts of emulsified asphalt, 15-25 parts of an aqueous filming ionomer, 1-3 parts of di(3-triethoxy silicon propyl) fumarate, 1-3 parts of 3-(2-propylene seleno-)-L-alanine, 0.3-0.5 part of methyl racemization-(E)-7-[5-tertiary-butyl dimethyl silylation oxymethyl-2,6-diisopropyl-4-(4-fluorophenyl)-3-pyridyl]-5-hydroxy-3-oxo-6-heptanoate, 1-3 parts of L-zinc carnosine modified alginic acid, 10-15 parts of an aqueous graphene slurry hectorite composition, 3-6 parts of an emulsifier, 0.5-1 part of an initiator, 1-3 parts of a thickening agent and 40-50 parts of deionized water. The invention furthermore discloses a preparation method of the aqueous anti-corrosion coating. The aqueous anti-corrosion coating disclosed by the invention is remarkable in corrosion-resistant and waterproof effect, good in comprehensive property, good in stability and weather resistance, rapid in drying speed and green and environmental-friendly in production and use process.

The invention discloses an environment-friendly preservative. The environment-friendly preservative comprises the following components in parts by weight: 35-50 parts of triazole nucleoside carboxylicacid modified hyperbranched polylysine, 2-5 parts of choline borate, 0.5-1.5 parts of lecithin, 4-7 parts of graphene, 0.5-1.5 parts of sodium glycyrrhetate, 6-10 parts of an antiseptic Chinese herbal medicine extract, 1-2 parts of a celery extract, 1-2 parts of a Hamamelis virginiana extract, 10-20 parts of ethanol and 150-200 parts of deionized water. The invention also provides a preparation method of the environment-friendly preservative. The environment-friendly preservative disclosed by the invention has obvious preservative effect, diverse performance, wide range of wood rot bacteria and insects resistance, stable performance in the process of storage and transportation, and safe and environment-friendly use.

The invention discloses flocking glue for textile. The flocking glue is characterized by comprising components in parts by weight as follows: 30-40 parts of hyperbranched waterborne polyurethane acrylate, 10-20 parts of O-(vinyloxybutyl)-N-(triethoxysilylpropyl)urethane, 8-12 parts of L-menthyl acrylate, 5-10 parts of polynorbornene-2,3-dicarboxylic polytetrahydrofuran glycol ester, 10-15 parts ofacrylic acid-2,3-epoxy propyl ester modified 1-aminobenzotriazole, 5-8 parts of acrylic acid hexahydro-4,7-methylene-1H-indenyl ester, 1-4 parts of an emulsifier, 0.3-0.6 part of an initiator, 5-10 parts of ethanol and 50-60 parts of water. The invention also discloses a preparation method of the flocking glue for textile. The flocking glue for textile has good wear resistance, moisture resistance, water resistance, solvent resistance and heat resistance, good flocking effect, excellent performance stability and high peel strength.

The invention belongs to the technical field of microorganisms and particularly relates to a probiotic and a preparation method thereof. The invention provides the probiotic, and the preservation number of the probiotic is GDMCC60085. The invention further provides a preparation method of the probiotic. The preparation method comprises the steps of (1) preparing a bacteria solution; (2) carrying out PCR amplification; and (3) cultivating and purifying a bacterial colony. The invention further provides a probiotic solid yeast, wherein the probiotic solid yeast is prepared from the probiotic. According to the technical scheme, through a whole-genome sequencing experiment, the prepared strain can participate in carbohydrate metabolism and fat metabolism, meanwhile, the vitamin and short-chain fatty acid acetic acid can be produced, and the probiotic is the probiotic with good potential. Meanwhile, the preparation method is simple and easy to operate, and suitable for large-scale popularization and application. The technical problems of a single probiotic variety and complicated separation of the prior art are solved.

The invention discloses a preparation method of a cell active element cultured from fetus skin and an application thereof, and solves the shortcomings of existing goat fetus extract such as low specificity, high immunogenicity, low bioactivity and non-obvious effect against skin. The preparation method comprises the following steps: (I) obtaining the fetus skin, and performing cleaning, disinfection and pre-culture on the fetus skin to obtain full-layer cell; (II) performing primary culture on the whole-layer cell by using a cell medium; and when the whole-layer cell adapts to the cultivation condition and more than two types of cells exist in the cell medium, collecting the cell supernate; and (III) performing membrane separation or / and chromatographic separation on the cell supernate, and collecting 2-100KD of bioactive substances to obtain the cell active element. The preparation method disclosed by the invention has the advantages of applicability to industrial production, low cost, remarkable effect and the like.

The invention provides a reversible thermochromic shape-stabilized phase change functional material and a preparation method thereof. The reversible thermochromic shape-stabilized phase change functional material comprises a color change system and a setting system. The color chang4 system takes crystal violet lactone as a color former, 4-dodecylphenol as a color developing agent and an alkane phase change material as a solvent; and the setting system is two thermoplastic elastomers, namely a hydrogenated styrene-butadiene block copolymer and an olefin block copolymer. The invention also provides the preparation method of the phase change material. The reversible thermochromic setting phase change functional material is high in phase change enthalpy value, adjustable in color change temperature of 18-65 DEG C, obvious in color change effect, high in thermal stability after multiple cycles and free of leakage at the temperature of 100 DEG C or below; the raw materials are cheap and easy to obtain, the preparation method is simple, the preparation process is environment-friendly and non-toxic, the flexible matrix phase change material has color changing ability, and the application range of the functional phase change material is widened; and the functional phase change material has good application prospects in the fields of heat storage and temperature control, thermochromic, heat exchange and the like.

The invention provides a gold / oxide catalyst and application in preparing DHA through catalytic oxidation of glycerol. The gold / oxide catalyst is prepared through a method including the steps that 1,plant leaves are aired and crushed, the powder is mixed with water and extracted, then centrifuging and filtering are carried out to obtain an aqueous extract, and freezing and drying are carried outto obtain a plant leaf extract; 2, an oxide carrier is selected; 3, the oxide carrier is mixed with water, then a gold precursor solution is added for stirring, and a mixed solution is obtained; the plant leaf extract is added into the mixed solution and stirred, the obtained material is subjected to suction filtration and washing and is dried in a vacuum drying oven, and then the material is roasted in an air atmosphere in a tubular furnace to obtain the gold / oxide catalyst. The invention also discloses the application of the gold / oxide catalyst in preparing the DHA through catalytic oxidation of the glycerol. The preparation method of the gold / oxide catalyst is simple and easy to operate, reaction raw materials are easy to obtain, reaction conditions are mild and environmentally friendly, and the prepared catalyst is good in catalytic activity and stable.

The invention provides a preparation method of an insulating and heat conduction material for a power battery of a new-energy vehicle. The method comprises steps as follows: (1) preparation of an intermediate product, (2) preparation of phthalimide-based fluorine-containing fluorene polycondensate, (3) preparation of a polymer surface modified fluoridized graphene / nano boron fiber composite, and (4) material forming. The invention also discloses the insulating and heat conduction material for the power battery of the new-energy vehicle, which is prepared with the preparation method. The insulating and heat conduction material for the power battery of the new-energy vehicle has the advantages of excellent comprehensive performance and better rigidity, flame retardance, high-temperature resistance, insulativity, weather fastness and heat conductivity.

The invention relates to the technical field of advanced materials, in particular to a carbon nanotube surface plating method. The plating method includes the following steps of mixing a carbon nanotube with an iodide of plating materials uniformly to obtain a mixture and compacting the mixture; connecting the compacted mixture to the space between a pair of graphite electrodes and vacuuming; introducing a pulse current in vacuum condition, heating the compacted mixture until the iodide pyrolysis takes place, and plating the carbon nanotube surface with plating materials while releasing the iodine vapor; and lowering the temperature and introducing an inert gas to remove the iodine vapor, and completing the carbon nanotube surface plating. By mixing the carbon nanotube with the iodide of the plating materials, the iodide can be quickly thermally decomposed through heat generated by the self-heating of the carbon nanotube after being powered on. By plating the surface of the carbon nanotube with the plating materials, the preparation method is simple and convenient to operate, the preparation method can be applied to large-scale production and the method is economical, effective andenvironmentally friendly.

The invention discloses a toluidine blue modified metal organic framework electrode and a preparation method and application thereof. The surface of the electrode is provided with an electrochemical signal molecule toluidine blue modified metal organic framework structure, the electrochemical performance is good, and the electrode is prepared through a one-step in-situ electrodeposition method. The method is applied to electrochemical immunosensing, the method is simple, the cost is low, when the IAA concentration is detected, the detection limit is as low as 1.2 pg / mL, and the linear range of the electrochemical response intensity and the IAA concentration is 20 pg / mL and 20 ng / mL.

The present invention discloses a spondylodynia treatment medicine formula. The spondylodynia treatment medicine formula comprises first medicine powder, second medicine powder, wine and vaseline. Thedisclosed preparation method of the spondylodynia treatment medicine comprises the following steps: (1) preparing the first medicine powder and the second medicine powder; (2) mixing the first medicine powder and the second medicine powder in a proportion to obtain a medicine powder mixture; (3) mixing the medicine powder mixture with wine and conducting putting still to obtain medicine powder wine; and (4) adding vaseline to the medicine powder wine and conducting blending into a paste shape. The provided spondylodynia treatment medicine formula can further improve a treatment effect on spondylosis, reduces treatment time of the spondylosis, better reduces suffering of patients, and greatly promotes development of the industry.

The invention discloses thorium-containing fluoride fused salt and / or uranium-containing fluoride fused salt and a preparation method. The preparation method includes following steps: in an inert or vacuum atmosphere, heating a mixture of substances A and B to be in a fused state, wherein the substance A is thorium tetrafluoride and / or uranium tetrafluoride, using amount of the substance A is 0.1-80%, and the percentage is mass percentage of the substance A accounting for the substance B; density of the substance B is fluoride fused salt of 1-4g / cm3; grain size of the substances A and B in the mixture is 0.2um-2mm respectively. The preparation method is simple and easy to operate and suitable for large-scale production; components of the thorium-containing fluoride fused salt and / or uranium-containing fluoride fused salt are free of layering and segregation; the thorium-containing fluoride fused salt and / or uranium-containing fluoride fused salt after being quenched is a homogeneous system and can be used as a fused salt standard sample in quantitative analysis.

The invention discloses a seedling-cultivating nutritional medium for planting motherwort and a preparation method of the seedling-cultivating nutritional medium. The seedling-cultivating nutritional medium comprises the following raw materials in parts by weight: 400-500 parts of dried dung, 100-200 parts of dried cow dung, 30-50 parts of dried duck dung, 30-50 parts of peanut stem leaf powder, 30-50 parts of loofah stem leaf powder, 10-20 parts of corn cake powder, 10-20 parts of pumpkin stem leaf powder, 5-10 parts of auxin, 5-10 parts of epoxy resin and 5-10 parts of Chinese herb residue, wherein the Chinese herb residue is prepared from motherwort residue, lily residue and dried orange peel residue according to a mass ratio of 3:1:1; the preparation method of the seedling-cultivating nutritional medium comprises the following specific steps: 1, preparing the raw materials; 2, fermenting; 3, mixing; 4, granulating; 5, drying. The seedling-cultivating nutritional medium prepared by the preparation method provided by the invention is purely natural, pollution-free and rich in a variety of nutrients; after application of the seedling-cultivating nutritional medium, the cultivated motherwort can grow fast, has fat and thick leaves and prosperous roots, and has good disease resistance and strong pest and disease preventing performance.

The invention discloses a conductive coating. The conductive coating comprises: by weight, 30 to 40 parts of a vinyl pyrrole triazine Schiff base-based film-forming polymer, 2 to 4 parts of aluminum acrylate, 3 to 6 parts of mesoporous Nb-Be-Ti-O, 1 to 2 parts of metal powder-doped polypyrrole tube, 5 to 10 parts of an inorganic filler, 2 to 4 parts of bis(triethoxysilyl)ethylene, 3 to 8 parts ofa dispersing agent, 15 to 25 parts of a solvent and 0.5 to 1.5 parts of a photoinitiator. The invention also discloses a preparation method of the conductive coating. The conductive coating disclosedby the invention is good in adhesiveness, conductivity, stability and dispersity, good in mechanical property and weather resistance after being formed into a film, and excellent in comprehensive performance.