336results about How to "Raw material safety" patented technology

The invention relates to an organic environmentally-friendly soil conditioner for improving acidified or acid soil and a preparation method thereof. The soil conditioner is prepared from the following raw materials in parts by weight: 23-46 parts of biogas residue, 14-24 parts of shell powder, 16-25 parts of calcium magnesium phosphate fertilizer, 13-20 parts of plant ash, 0.1-0.2 part of chitosan, 5-7 parts of zeolite powder and 6-9 parts of bentonite. The soil conditioner is prepared through pretreatment of the biogas residue, pretreatment of the shell powder and the like; through the produced soil conditioner, the pH value of soil can be increased; nutritive elements such as calcium, magnesium, phosphorus, potassium and the like in the soil are increased; the organic matter content in the soil is increased; the water retention and fertilizer retention capacity of the soil is improved; the physicochemical property of the soil is improved; the antiretroviral (diseases, pests, drought and the like) capacity of crops is improved; heavy metal poison is reduced; and the soil conditioner is convenient to apply, is not influenced by wind power and is suitable for mechanical working.

The invention provides a preparation method of perovskite quantum dots. The preparation method comprises steps as follows: A), Cs2CO3, oleic acid and octadecene are mixed and subjected to a heating reaction under the condition of protective atmosphere, and a cesium oleate precursor solution is obtained; B), lead halide and octadecene are mixed and subjected to heating and heat preservation under the condition of protective atmosphere, after an oleic acid and oleylamine mixed solution is added and heated to 170-190 DEG C, an obtained mixed solution is mixed and reacts with the cesium oleate precursor solution, and the perovskite quantum dots are obtained, wherein the lead halide is selected from one or more of lead chloride, lead bromide and lead iodide. According to the preparation method, the coordination effect of surface ligands of the perovskite quantum dots of different halide ions directly synthesized at a higher temperature is more remarkable, so that stability and fluorescence quantum efficiency of the synthesized perovskite quantum dots are both guaranteed.

The invention relates to a novel nerve duct bracket and a preparation method and application thereof. Three-dimensional graphene or graphene derivative multichannel active nanofiber sponge is used asa stuffing inner core, and nanofibers in an axial direction are used as an outer pipe. The preparation method comprises the steps of performing ultrasonic dispersion on graphene or a graphene derivative into spinning liquid, performing electrostatic spinning, and performing drying so as to obtain a nanofiber film; performing shearing, and performing homogenization and crushing so as to obtain broken fiber mixed liquid; pouring the broken fiber mixed liquid into a multichannel mold, and performing freeze drying; performing cross-linked shaping; performing drying and shaping so as to obtain thethree-dimensional graphene or graphene derivative multichannel nanofiber sponge; and performing fixing in an axial direction spinning receiver, and performing axial direction spinning on an outer layer so as to obtain the novel nerve duct bracket. The novel nerve duct bracket is used for inducing repair and regeneration of nerve tissue. The novel nerve duct bracket disclosed by the invention is simple to operate and good in repeatability, and a new thinking is provided for repairing neurological deficits.

The invention discloses a production method of an active earthworm protein. The production method comprises the steps of: purging live earthworms, self-dissolving the earthworms, grinding, filtering, centrifuging, carrying out membrane separation and drying to obtain the active earthworm protein. The active earthworm protein has the functions of dissolving thrombus, improving systemic circulation, softening blood vessels, stabilizing plaques, establishing collateral circulation, improving blood and oxygen supply of heart and brain, bi-directionally adjusting blood pressure, reducing blood viscosity and the like. The method disclosed by the invention has the advantages of simple process, high extraction efficiency, low production cost and high production purity and can provide safe and excellent raw materials to foods, health foods, medicines and cosmetics.

The invention relates to a synthesis method of a tris(trimethylsilyl) phosphate, which comprises the following steps: reacting hexamethyldisilazane with a phosphate for 2 to 5 hours at the temperature of 80 to 160 DEG C so as to form a tris(trimethylsilyl) phosphate and ammonia; then carrying out rectification and purification on the obtained crude product so as to obtain a fine product of the tris(trimethylsilyl) phosphate. The method has the advantages of simple operation, easy-taking raw material and simple post-processing, is suitable for industrial production, and can synthesize high quality product.

The invention relates to a large single crystal graphene and preparation method thereof. The preparation method comprises the following steps: 1) annealing a copper base under reducing atmosphere to obtain annealed copper base; 2) under triazine derivative steam atmosphere, treating the copper base annealed after the annealing treatment in the step 1) to obtain the copper base after the triazine derivative treatment, wherein the triazine derivative is selected from at least one of tripolycyanamide, 2,4-diamino-6-methyl-1,3,5-triazine, and 2-amino-4-methyl-6-methoxy-1,3,5-triazine; 3) depositing graphene on the surface of the copper base subjected to triazine derivative biological treatment by adopting a chemical vapor deposition method to obtain the large single crystal graphene. The preparation method is simple and suitable for large-scale production, the single crystal domain size achieves sub-centimeter level, and the single crystal quality is high and can be applied to the electronics.

The invention discloses ceramic paint used on the surface of steel. The ceramic paint is prepared from, by mass, 20-50% of ceramic aggregate, 2-10% of carbide wear-resisting and enhancing phase, 20-40% of binder and the balance water. The invention further provides a method for preparing the ceramic paint. According to the method, ceramic aggregate, carbide wear-resisting and enhancing phase, binder, cosolvent and thickener are blended to form coating slurry, the coating slurry is brushed or sprayed onto the surface of steel, heating is conducted to enable chemical reaction to be conducted between different components of the coating, and then the ceramic coating is prepared on the surface of heat-resistant steel through sintering. The coating has certain strength and tenacity and also has the advantages of ceramic materials of being resistant to high temperature, resistant to oxidation, resistant to corrosion and the like, and can be used for high-temperature anti-corrosion protection of heat-resistant steel in a thermal power plant.

A quanternary ammonium type anionic exchanging agent with 0.3-3.9 meq/g dry agent of exchange capacity is prepared through Friedel-Crafts acylation reaction to introduce the alpha-haloaceyl to polystyrene and reaction on amine or ammonia.

The invention discloses a portable NO production machine including: an air pump, a NO generator, and a reduction module. The NO generator is connected to a NO concentration regulator and a digital display. Through electrochemical principle of NO generation, fresh NO is prepared. The raw materials are safe and reliable, the reaction is mild, and the apparatus is small and portable and is convenientto control. The invention provides the possibility of preparing and using NO for people with chronic illness for long time in home. The portable NO production machine is better in safety and lower incost when compared with clinical NO gas cylinders and blending apparatuses that are applied clinically internationally.

The invention belongs to the field of organic chemical materials, in particular to a composite diatom mud coating. It includes the following raw materials in parts by weight: 30-40 parts of selected diatomite, 10-20 parts of bentonite, 10-20 parts of high-viscosity attapulgite, 8-12 parts of activated carbon powder, 10-20 parts of quartz sand, zeolite 4-6 parts of powder, 4-6 parts of heavy calcium carbonate, 1-3 parts of hydroxyethyl cellulose, 3-5 parts of nano-anion powder, 3-5 parts of nano-titanium dioxide, and 0.1-0.3 parts of formaldehyde-dissolving enzyme. The composite diatom mud paint provided by the invention has natural, environmentally friendly, safe and reliable raw materials; it contains bentonite and high-viscosity attapulgite, which can increase the adhesion of the paint and is convenient for painting; it contains activated carbon powder and formaldehyde-dissolving enzymes, which can enhance absorption and decomposition The effect of formaldehyde and other harmful substances can purify the air; it contains nano negative ion powder and titanium dioxide, which greatly enhances the sterilization effect, releases negative ions, and improves the living environment.

The invention provides a method for preparing an electroconductive polymer compound. The method comprises the steps that aniline, an optional phytic acid, a water-soluble polymer of which the side chain comprises one or more of hydroxyl, carboxyl and sulfo group, a free radical polymerization initiator and a solvent are mixed, and a polymerization reaction is performed. The invention also provides a method for preparing the electroconductive polymer compound for strain and/or pressure sensing. The electroconductive polymer compound prepared by the method has favorable self-healing nature, mechanical property and electrical property. Besides, when used for a strain sensor or a pressure sensor, an electroconductive polymer compound membrane prepared by the method has excellent sensing sensitivity and actual monitoring and sensing capabilities before and after self-healing.

This invention relates to low toxicity CdSe/ZnSe core shell quanta point preparation method, it belongs to luminescent material technique field. First Cd0, stearic acid and octadecene are used to make cadmium precursor solution under nitrogen gas condition. Then selenium stock solution is prepared by fill selenium powder, positive three octyl phosphine and octadecene into sealing tank. Zinc stock solution is made by dissolve zinc into 4ml toluene. Oxide positive three octyl phosphine and hexadecyl amine are filled in the cadmium solution, the selenium stock solution is cooled down under nitrogen gas condition to get CdSe quanta point. Then zinc stearate stock solution is added and cooled down to 30-50 degrees centigrade to get CdSe/ZnSe core shell quanta point. The operation of this invention is simple, cost is low and high efficiency quanta point is get. Quanta yield ratio is advanced from 2-10% before cladding to more than 60% after cladding.

The present invention relates to a feed additive, an antibiotic-free feed and an application of the feed. The feed additive comprises the following components in parts by mass: 0.02-0.04 part of probiotics, 0.1-0.3 part of egg powder, 0.02-0.05 part of plant essential oil, 0.50-1.00 part of an organic acidifier, 0.10-0.15 part of a compound enzyme preparation and 1.0-1.5 parts of a yeast extract. The components are cooperated together to play a synergistic role. By using the antibiotic-free feed containing the feed additive to conduct a feeding for a period of time, immunity of nursery pigs is improved. In a condition of a basic same feed intake, an average daily weight gain of the nursery pigs eating the feed containing the feed additive is obvious higher than that in a control group.

The invention discloses a soil conditioner taking shell powder as a raw material. The soil conditioner comprises the following components in parts by weight: 60-70 parts of shell powder, 20-20 parts of quicklime and 2-10 parts of plant ashes. Furthermore, the soil conditioner also comprises the following components in parts by weight: 2-7 parts of bentonite. By adopting the soil conditioner taking the shell powder as the raw material, the pH value of the soil can be improved, the soil has water-retaining property, nutrient preserving capability and breathability, the physical structure of the soil can be improved, the soil and the growth of rhizosphere microorganisms can be effectively stimulated, the population structure of the microorganisms in the soil is regulated, the utilization rate of a fertilizer is improved, and meanwhile, the nutrient elements such as calcium, phosphorus, potassium and the like, which are fixed due to soil acidification, can be effectively activated and replenished.

The invention discloses a heat-insulation fireproof water-based paint. The invention is characterized in that the paint is prepared from the following raw materials in parts by weight: 20-25 parts of silicone-acrylic emulsion, 1-2 parts of aluminum potassium sulfate, 1-2 parts of polyethyleneglycol, 2-4 parts of barite powder, 14-18 parts of silica sol, 20-25 parts of water-based polyurethane, 0.3-0.5 part of sodium caseinate, 2-4 parts of propanediol tert-butyl ether, 1-2 parts of benzotriazole, 1-2 parts of dioctyl adipate, 0.2-0.4 part of mineral oil defoaming agent, 1-2 parts of aluminum tripolyphosphate, 1-2 parts of potassium methylsilanolate, 2-3 parts of borax, 2-3 parts of water glass, 1-2 parts of trisodium phosphate, 2-3 parts of pulverized asbestos, 7-9 parts of heat-insulation slurry, 2-3 parts of carbon fiber and 14-20 parts of deionized water. The paint has excellent fire resistance, heat-insulation property, aging resistance, water resistance and the like. The added silica sol enhances the hardness and wear resistance of the paint film. By using the safe and nontoxic raw materials and using water as the diluter, the paint has the advantages of low cost and low VOC (volatile organic compound) value, is free of heavy metals and benzene organic solvents, is convenient for construction and application and harmless to the body of the workers, has wide application range, and is worthy of popularization.

The invention provides a healthcare animal growth promoter containing soybean oligosaccharides and clostridium butyricum. The healthcare growth promoter is characterized by being prepared by taking the soybean oligosaccharides and the clostridium butyricum as main active ingredients and attapulgite as a carrier and compounding, wherein the soybean oligosaccharides account for 15%-40% of the total weight, the clostridium butyricum accounts for 30%-55% of the total weight, and the attapulgite accounts for 5%-55% of the total weight; the purity of the soybean oligosaccharides is equal to or higher than 95%; the total viable count of the clostridium butyricum is equal to or higher than 1.0*1010 CFU/g; the additive amount of the healthcare growth promoter in a feed is 0.05%-2%. The healthcare growth promoter has the benefits as follows: (1) the growth speed of domestic animals can be remarkably increased; (2) the immunity and the breeding safety of the domestic animals can be improved and the survival rate of the domestic animals can be increased; (3) the raw materials are safe, stable, nontoxic, pollution-free and residue-free, and the novel healthcare animal growth promoter is safe, efficient and green.

The invention discloses dendrobium officinale flower beauty-nourishing tea which comprises the following raw materials in percent by weight: 20-40 percent of dendrobium officinale flower, 10-24 percent of chamomile, 8-14 percent of apple blossom, 6-10 percent of lemon and 30-50 percent of green tea. The dendrobium officinale flower beauty-nourishing tea is prepared by the following steps: selecting dried or fresh products, mixing the treated raw materials, directly packaging in separate bags or grinding and packaging in separate bags, sterilizing and boxing. The inherent effects of detoxifying, beautifying and nourishing skin of the raw materials are fully exerted, the effect is outstanding, the raw materials are non-toxic, safe, convenient to carry and obvious in curative effect and do not have side effects, and selection of vast women in the love of beauty and attention on daily health care can be met.

The invention belongs to the technical fields of novel one-dimensional magnetic materials and novel microwave absorption materials, in particular to a superfine nickel fiber and a preparation method thereof. The diameter of the nickel fiber is between 100 and 600nm, and the length is between 10 and 100 mu m. Inorganic and organic nickel salt and hydrazine hydrate react in an alcohol solvent at the temperature of between 45 and 90 DEG C for 10 to 120 minutes under the alkaline condition, and the superfine nickel fiber is obtained through separation and purification after temperature reduction. The pure superfine fibrous nickel with uniform appearance and large length-diameter ratio can be prepared without introducing templates or introducing externally applied magnetic field to the reaction system. The method for preparing the superfine nickel fiber has the advantages of low cost of the used raw materials, safety, simple process, short period, mild preparation condition, low production cost, high yield, and suitability for scale production.

The invention relates to the field of special cosmetics, in particular to a single-agent-type hair dye. An adopted dyeing agent is prepared from a plant dyeing agent and a melanin precursor. The melanin precursor is prepared from 5,6-dihydroxyindole, 5,6-dihydroxyindole-2-carboxylic acid, 5,6-dihydroxyindoline and 5,6-dihydroxyindoline-2-carboxylic acid. The plant dyeing agent is an extracting solution of gallnuts, mulberries, black sesame, polygonum multiflorum, Chinese herbaceous peonies and lotus roots. According to the prepared composite single-agent-type hair dye, the formula is simple, the raw materials are safe, the stability of the formula is high, and the composite single-agent-type hair dye has the hair caring effect and the hair protection effect, and also has the advantages of being good in hair dyeing effect and high in dyeing performance.

The invention discloses super-clean graphene and a preparation method thereof. The preparation method of the super-clean graphene comprises the following steps: putting foam copper on a copper substrate, and attaching; leading carbon source gas and hydrogen to perform chemical vapor deposition; after deposition is completed, obtaining the super-clean graphene at the contact surface of the copper substrate and the foam copper. The preparation method has the advantages that the preparation method is simple and is suitable for large-scale production, the continuous clean area reaches the sub-centimeter level, and the preparation method is suitable for the fields of electronics, optics and the like.