87results about How to "Suitable for expanded production" patented technology

The invention provides a phosphorus-containing fluorine-containing synergic flame-retardant compound and a preparation method thereof, relating to flame-retardant compounds. The preparation method comprises the following steps: carrying out reaction on a diamido compound and 5-bis(trifluoromethyl)benzaldehyde in a first solvent, carrying out rotary evaporation, and drying to obtain an intermediate containing carbon-nitrogen double bond; and carrying out reaction on the intermediate containing carbon-nitrogen double bond and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide in a second solvent, precipitating the product with a precipitant, washing with the precipitant, and drying to obtain the phosphorus-containing fluorine-containing synergic flame-retardant compound. The compound simultaneously comprises the flame-retardant elements phosphorus and fluorine, and the phosphorus and fluorine have the synergic flame-retardant actions; and thus, the compound can be used as a flame retardant and has favorable flame-retardant effect. The introduced fluorine element can enhance the heat stability and chemical stability, lower the surface energy of the material and lower the dielectric constant and hydroscopic property of the material, thereby satisfying the required properties of the electronic packaging material. The compound contains two active groups, thereby being beneficial to enhancing the compatibility with the high-polymer material, improving the loss of the flame retardant and enhancing the flame retardancy.

The invention relates to a method for preparing a silicon-containing phosphonitrile modified ammonium polyphosphate flame retardant and application in flame-retardant polyolefin, and belongs to the technical field of flame-retardant materials. The method comprises the following steps of: adding ammonium polyphosphate (APP) into an aminopropyl ethoxy silane polymer (APESP) solution system, removing a solvent, drying, and thus obtaining the modified ammonium polyphosphate flame retardant. The novel collaborative inflaming-retarding modified APP flame retardant integrating phosphorus/nitrogen/silicon elements is prepared by modifying the surface of the APP through the silicon-containing nitrile APESP; the method is mild in preparation conditions, easy to control, good in repeatability and high in yield, and is suitable for expanded production; and when the flame retardant is applied to a polyolefin flame-retardant system, oxygen index, vertical burning level and heat release rate of the obtained polyolefin are remarkably improved, and good mechanical property is kept.

The invention discloses a flame-retardant silane crosslinking agent and a preparation method thereof. The flame-retardant silane crosslinking agent has one or more of the following structures: X3Si-R1-DPPA-R2-SiX3 and X3Si-R3-DAPO-R4-SiX3. The preparation method comprises the following steps of: 1) under the protection of inert gas, dissolving phosphorous azacyclo reactant into an organic solvent, adding a silane coupling agent and the corresponding catalyst, and stirring and reacting at the temperature of 25 to 150 DEG C for 0.5 to 24 hours to obtain reaction liquid, wherein the phosphorous azacyclo reactant is DPPA and/or DAPO; and 2) filtering or rotationally evaporating the reaction liquid, washing and drying to obtain the target product. The flame-retardant silane crosslinking agent can take part in reactions such as crosslinking and polycondensation through a silane active group and form one part of a polymer molecular structure, so that the polymer has an intrinsic flame-retardant function or can improve the flame resistance and can also be used for improving the compatibility of some inorganic fillers or additive flame retardant and high molecular materials. The method has the advantages of mild reaction condition, controllable and adjustable reaction process, high yield and the like.

The invention discloses a method for synthesizing a negative electrode material Fe2SSe of a lithium-ion battery by a one-pot solid-phase method. A heat treatment procedure is mild; the standing time at 400 DEG C is relatively long; and a reaction failure or a great loss of a sulfur element caused by the phenomenon that raw material sublimed sulphur is easily sublimed at a high temperature to cause a quartz tube rupture is avoided. The operation steps are simple; the cost is low; the product purity is very high; the equipment requirements are simple; the synthesis period is short; the method is suitable for expanded production; a new way is provided for batch synthesis of the Fe2SSe; the obtained Fe2SSe is blocky-shaped particles; the microstructure is in a two-dimensional layer form; the agglomerate phenomenon is avoided; and the Fe2SSe with the two-dimensional layer structure is beneficial to intercalation and deintercalation of lithium ions in the charging and discharging processes when used as a lithium-ion negative electrode material.

The invention belongs to the technical field of a carbon fiber material. Specifically, a low-temperature pyrolysis method is adopted to perform nitrogen atom doping on carbon fibers. According to the method, low-cost nitrogen source and carbon fibers are used as raw materials; the mass ratio of the carbon source to the carbon fibers is controlled to be 1 to (1-10); and the nitrogen-doped carbon fibers are prepared by adopting the low-temperature pyrolysis method. The technological method provided by the invention has low-cost and easily-available raw materials, simple process, and relatively low cost, so that expansion of production can be carried out favorably; and the preparation method is of great practical significance to improvement of lithium storage performance of a negative electrode material of a lithium ion battery, so that the preparation method has potential popularization and application values.

The invention discloses a novel phenylacetylene terminated poly (acetenyl-silane) polymer and a preparation method thereof. The polymer is prepared from dihalogenosilane, phenylacetylene, trichloroethylene and organic lithium serving as raw materials and prepared by two-step reaction under the protection of inert gas. The method comprises the following steps of: 1, under the protection of the inert gas, making a mixture of the trichloroethylene and the phenylacetylene react with the organic lithium to obtain acetenyl dilithium and phenylacetylene lithium; and 2, under the protection of the inert gas, performing coupling reaction on the mixture of the acetenyl dilithium and the phenylacetylene lithium generated in the first step and the dihalogenosilane to obtain a final target product. The raw materials used in the polymer are easily obtained, the process flow is simple, and the operation process is feasible. The polymer prepared by the method is subjected to cross-linking reaction under heat or chemical initiation to form a thermosetting material with high-temperature resistance and excellent thermal oxidation resistance, and the thermosetting material is further heated to form a ceramic structure. The polymer prepared by the method can be used as a matrix resin, a high-temperature resistant coating and a ceramic precursor of an advanced composite material.

The invention provides a novel liquid vitamin for a breeding hen or a laying hen and a preparation method of the novel liquid vitamin. The liquid vitamin is prepared from the following components in parts by weight: 0.005-0.01 part of sodium pyrosulfite, 0.2-0.8 part of vitamin C, 0.2-0.4 part of vitamin B1, 0.1-0.3 part of vitamin B6, 0.2-0.5 part of calcium pantothenate, 0.04-009 part of vitamin K, 0.05-0.12 part of carnitine, 0.05-009 part of compound amino acid, 5-10 parts of sorbitol, 0.02-0.05 part of BHT (Butylated Hydroxytoluene), 0.1-0.3 part of sodium benzoate, 9-15 parts of Tween80, 10-15 parts of propylene glycol, 0.3-0.9 part of vitamin A, 0.2-0.4 part of vitamin E, 0.005-0.01 part of vitamin D, 0.2-0.8 part of ginseng stem and leaf saponins and 50-70 parts of injection water.

The invention discloses a synthesis method of trifluoropyruvate compounds. The method comprises the following steps: carrying out exchange reaction on an activator and a metal oxide under heating conditions to form a novel solid acid catalyst; and carrying out gas-phase catalytic reaction on the raw material 2-fluoro-2-alkoxy-trifluoropropionate under the action of the novel solid acid catalyst under high-temperature conditions to prepare the trifluoropyruvate compounds by one step. In the synthesis method of trifluoropyruvate compounds, the novel solid acid catalyst is prepared; and the novel solid acid catalyst can be effectively used for catalyzing the synthesis of trifluoropyruvates. The catalyst is used for catalyzing the synthesis of the trifluoropyruvate compound products for the first time in the invention. The method has the advantages of simple process route, short reaction time, higher reaction yield, fewer byproducts and recyclable catalyst, and thus, is suitable for expanded production and worthy of popularization.

The invention discloses a method for preparing microcapsules based on alfalfa flower anthocyanin, and the method for extracting the alfalfa flower anthocyanin comprises the following steps: taking fresh alfalfa flowers, conducting freeze-drying at -60 to -48 DEG C, conducting crushing and sieving, conducting extracting for 15-35 minutes at 55-75 DEG C by using an ethanol aqueous solution with the volume concentration of 40-80% as an extracting solution according to the liquid-material ratio of 20-40mL/g and the assistance of 200-400W ultrasonic waves, adjusting the pH value of the extract to 1.5-2 by hydrochloric acid, conducting centrifuging at low temperature and high speed, and performing vacuum suction filtration and drying on supernate to obtain anthocyanin; and dissolving the anthocyanin in distilled water according to the material-liquid ratio of 0.04-0.06 g/mL, with an aqueous solution of maltodextrin and xanthan gum in the mass ratio of (10-30):1 as a wall material solvent, mixing a formed anthocyanin solution and a formed solution of maltodextrin and xanthan gum according to a mixing volume ratio of 1:(4-5), and conducting stirring and freeze-drying to obtain the microcapsules. The anthocyanin extraction method is simple, mild in condition and easy to operate, and the prepared microcapsules are excellent in quality, stable in performance, long in shelf life and suitable for expanded production.

The invention discloses a method for extracting albumin and globulin from bovine serum and a method for utilizing ox blood and relates to the technical field of protein extraction. According to the method for extracting albumin and globulin from bovine serum provided by the invention, the principle of plasma protein depositing in saline solution in a certain saturability is utilized, (NH4)2SO4 fractional precipitation is adopted and the bovine serum albumin is further purified. The bovine serum albumin is high in purity, is low in endotoxin content and meets the requirement of Chinese Biological Product Regulation. A saturated (NH4)2SO4 fractional repeated salting out method is utilized to extract the bovine serum albumin; the high molecular weight plasma protein is extremely removed; and the purity of the extracted bovine serum albumin is high. The method for extracting albumin and globulin from bovine serum provided by the invention is simple in process; no special device is required; the method is suitable for expanded production; and the method for utilizing ox blood provided by the invention can increase the use ratio of the ox blood.

The invention belongs to the field of veterinary disinfectants, and discloses a foam type hoof bath lotion for daily prevention and treatment of animal hoof diseases, and a preparation method and application thereof. The hoof bath lotion comprises, by weight, 0.2-0.4 part of a salt sterilizing hoof care agent, 1-2 parts of an antibacterial plant extract, 0.5-2 parts of a foaming agent, 0.5-5 partsof a foam stabilizer and 1-2 parts of a toner. The preparation method comprises the following steps: preparing a salt sterilizing hoof care agent solution I; preparing a toner solution II; preparinga mixed solution III of the foaming agent and the foam stabilizer; adding the solution II and the solution III into the solution I to form a solution IV; preparing a plant extract solution V; adding the solution V into the solution IV to form a solution VI; and adjusting the pH value of the solution VI, fixing the volume of the solution VI, and carrying out inspecting to obtain the foam type hoofbath lotion for daily prevention and treatment of animal hoof diseases. The foam type hoof bath lotion of the invention can be used for preventing and treating hoof diseases, has the advantages of high cure rate, mild action, favorable bactericidal effect, obvious environmental protection advantage, low consumption and simple techniques, reduces use cost, and presents wide application prospects.

The invention relates to T16 cage structure epoxy phenyl silsesquioxane and a preparation method thereof, and belongs to the technical field of organic-inorganic hybrid materials. The preparation method comprises the following steps: adding silane containing phenyl and epoxy groups and a solvent into a reactor, stirring, controlling the temperature of the reactor to be 25 DEG C, dropwise adding a catalyst namely a NaOH solution, controlling the temperature of the reactor to be 40 DEG C, and reacting for 1-2 hours to obtain a reaction solution; and adjusting the reaction solution to be neutral by using diluted hydrochloric acid, washing by using deionized water, drying, filtering, carrying out rotary evaporation on the filtrate, and drying to obtain the T16 cage structure epoxy phenyl silsesquioxane. The single T16 cage structure epoxy phenyl silsesquioxane containing 7 phenyl groups and 9 epoxy groups obtained in the invention has good thermal stability and reaction activity; and the preparation method is mild in condition, easy to control and suitable for expanded production.