120results about How to "Suitable for industrial implementation" patented technology

The invention discloses a hollow fiber porous membrane in a perfluoro polymer and a preparation method thereof. A membrane forming system of the membrane comprises the following components in percentage by weight: 40 to 60 percent of perfluoro polymer; 10 to 30 percent of polymer additive, 10 to 30 percent of composite pore-forming agent and 5 to 20 percent of organic low-molecular liquid; the perfluoro polymer is a copolymerized modified product of tetrafluoroethylene and a perfluoro second monomer; the polymer additive is fluor alkaline-containing polymers or a mixture thereof; the composite pore-forming agent comprises a soluble pore-forming agent and a non-soluble pore-forming agent; and the organic low-molecular liquid is a diluent of the polymer additive with a high boiling point. The preparation method comprises the following steps of: forcibly mixing the polymer additive, the composite pore-forming agent and the organic low-molecular liquid; uniformly mixing the mixture and the perfluoro polymer particles; and injecting the mixture into a double-screw machine, performing melt blended spinning at a temperature of between 300 and 360 DEG C and finally performing a conventional post-processing to obtain the hollow fiber porous membrane.

The invention discloses a preparation method of a flame retarding styrene polymer composite material. The raw materials of the composite material (weight) includes 100 parts of recovered styrene polymer, 10-30 parts of flame retardant, 1-5 parts of smoke inhibitor and 5-30 parts of intensifier. The preparation method includes the following steps: 1. stirring the intensifier in a high speed mixingmachine to have the water content of 1-2% at the temperature of 105-150 DEG C and at the revolving speed of 600-1000r/min; 2. crushing the recovered styrene polymer product in a high speed crushing machine and then adding the crushed product in a double-screw machine to be extruded and pelletized; 3. sequentially adding the pellet, dry wood powder, flame retardant and smoke inhibitor in the high speed mixing machine for 5-10 min of premixing, and then discharging the mixture to a low speed cold mixing machine for 5-10 min of mixing to obtain premix; and 4. melting down the premix through the double-screw machine until or single-screw machine for pelleting to obtain the flame retarding styrene polymer composite material.

The invention discloses a method and device for preparing a three-dimensional porous support for tissue engineering. The preparation method comprises the following steps of: 1, slicing and layering a support according to a certain thickness firstly to obtain two-dimensional cross section information of each layer of the support; 2, preparing a first layer slice of the support by using a three-dimensional inkjet printing spray head under the control of CAD software, dibbling microcapsule particles on the first layer slice of the support by using a bio-microcapsule preparation nozzle, and stacking the microcapsule particles to form gaps required by a support design; 3, moving the three-dimensional inkjet printing spray head and the bio-microcapsule preparation nozzle for the height of one layer slice of the support to finish the forming preparation of a second layer of the support; and 4, repeating the method layer by layer until the three-dimensional porous support is prepared. The device for preparing the three-dimensional porous support is suitable for the preparation method, and comprises a three-dimensional inkjet printing forming machine, a jetting device, a bio-microcapsule dibbling device and a control system.

The invention discloses a method for preparing cyclohexanol and cyclohexanone by virtue of electrochemically catalytic oxidation of cyclohexane in the technical field of organic electrochemical synthesis. The method comprises the following steps: forming an electrocatalytic membrane reactor by taking a metal oxide loaded porous metal electrocatalytic membrane as an anode and an auxiliary electrode as a cathode; with a mixed water solution of cyclohexane, an organic solvent and electrolyte as a reaction raw material solution, catalytically oxidizing cyclohexane on the surface of the membrane and in a hole by using metal oxide loaded on the membrane to form products, namely cyclohexanol and cyclohexanone under a certain working voltage and current density condition; meanwhile, sucking the products to a permeation side under a certain membrane permeation flux condition by means of negative pressure generated by a peristaltic pump to realize real-time online separation or transfer; then, separating and purifying a membrane permeation solution to finally obtain the products, namely cyclohexanol and cyclohexanone. Compared with the traditional process, the method has the advantages of high efficiency, environment friendliness, high selectivity, simplicity in operation and the like, is suitable for industrial implementation and has wide application prospect.

A method for improving the strength of carbon fibers, comprising: 1) soaking the carbon fibers in an aqueous solution of nitric acid, washing the carbon fibers with deionized water until the washing liquid is neutral after soaking; 2) preparing a carbon nanotube dispersion into a spraying liquid, carbon The nanotubes are functionalized carbon nanotubes, which are obtained from hydroxylated carbon nanotubes, carboxylated carbon nanotubes or aminated carbon nanotubes. The dispersion liquid is a mixture of ionic liquid and water, and the ionic liquid is obtained from 1,3 -Dimethylimidazole p-toluenesulfonate, 1-butyl-3-methylimidazole p-toluenesulfonate, 1-octyl-3-methylimidazole chloride or 5-bromo-2-methyl-3 - One of the nitropyridines, the content of carbon nanotubes in the spraying liquid is 16-48g/L; 3) The spraying liquid is applied with positive static electricity of 10-40kV, and the carbon fiber tow is flattened and grounded to form a spraying liquid acceptor, and then passes through Electrostatic spraying sprays the spray liquid on the carbon fiber surface. The tensile strength of carbon fiber can be increased by more than 100%.

The invention discloses a reactive intumescent flame retardant for polyurethane and a synthesis method of the reactive intumescent flame retardant, relates to a flame retardant technology, in particular to a novel intumescent flame retardant which contains an acid source, a carbon source and a gas source simultaneously and contains a hydroxyl group serving as an active group. The chemical name ofthe reactive intumescent flame retardant for polyurethane is 3,9-di{N,N-di(2-ethoxyl)-amino}-2,4,8,10-4-oxo-3,9-diphosphate spiro-3,9-dioxo-[5,5]-undecane. The structure of the reactive intumescent flame retardant is shown as a formula (I). The synthesis method comprises the following steps of: adding 3,9-di{N,N-di(2-ethoxyl)-amino}-2,4,8,10-4-oxo-3,9-diphosphate spiro-3,9-dioxo-[5,5]-undecane into water; dropwise adding diethanolameine and triethylamine at the temperature of 0-5 DEG C; reacting at the temperature of 50-60 DEG C for 4-6 hours; concentrating under reduced pressure; purifying; and performing vacuum drying to obtain the flame retardant. The flame retardant and the synthesis method of the reactive intumescent flame retardant have the advantages of integration of phosphorus, nitrogen and carbon, high phosphorus and nitrogen flame-retardant ingredients, no containing of halogen, nontoxicity, environmental friendliness, high carbon forming property, high compatibility with apolyurethane system, simple process, mild synthesis condition and suitability for industrial implementation.

The invention discloses cord thread spinning oil. The cord thread spinning oil comprises, by mass, 40-60% of plant oil, 30-50% of compound fatty acid ester, 1-10% of non-ion surfactant, and the balance antioxidant. The plant oil is selected from at least one of peanut oil, soya-bean oil, linseed oil, castor oil, health oil, and rapeseed oil, refined processing is carried out on the plant oil, iodine value is higher than 70, the compound fatty acid ester is pentaerythritol ester or trimethylolpropane ester, and the non-ion surfactant is fatty alcohol-polyoxyethylene ether, fatty alcohol polyurethane propylene ether or fatty alcohol polyoxyethylene polyoxypropylene.

The invention discloses a hair slip prevention finishing agent and a finishing method for a rabbit hair fabric. The finishing agent comprises resin finishing liquor and hand feeling improvement finishing liquor. The resin finishing liquor consists of the following components in percentage by mass: 5.5 to 25 percent of waterborne polyurethane, 4 to 15 percent of watercraft acrylic resin, 0.5 to 1.5 percent of waterborne terminated isocyanate, 1.5 to 2.5 percent of emulsifier OP-10, 0.1 to 1.0 percent of regulator sodium bicarbonate or sodium carbonate, and the balance of water. The hand feeling improvement finishing liquor consists of the following components in percentage by mass: 5 to 25 percent of amino-modified silicone oil softener and the balance of water. In the finishing method, the finishing agent disclosed by the invention and a one-step finishing process (1) and a two-step finishing process (2) are adopted. The finishing agent disclosed by the invention is easy to prepare, has low cost, is convenient to use and has good hair slip prevention effect. The finishing method disclosed by the invention has simple process and is suitable for industrial implementation.

The invention discloses a catalyst for catalytically hydrolyzing sodium borohydride to prepare hydrogen and a preparation method thereof. The catalyst is characterized in that the catalyst is a composite catalyst formed by taking silicon oxide as the carrier and coating more than one metal nanoparticle layers on the carrier; the diameter of the silicon oxide particle is 100-1000nm; the metal nanoparticle is nickel or nickel boride; the diameter of the metal nanoparticle is 10-200nm; and the mass of the metal nanoparticle is 5-50% that of the carrier. The preparation method comprises the following steps: 1, preparing the silicon oxide carrier: firstly preparing defined amount of ammonia water and ethanol into mixed liquor, then adding tetraethoxysilane to the mixed liquor and stirring the mixture to react to prepare silicon oxide carrier particle suspension; and 2, coating the nickel or nickel boride metal nanoparticle: taking 100ml of silicon oxide suspension, adding defined amount ofmetal salt solution to the suspension, after stirring and uniform mixing, adding excessive reducing agents for reaction, thus obtaining nickel or nickel boride-silicon oxide catalyst suspension.

The invention discloses a method for manufacturing biodegradable starch-based fibers. The process is as follows: 1. Put the biodegradable resin in a vacuum oven at 60-80°C and dry it for 16-24 hours before use; the biodegradable resin refers to A blend of the following substances and weight ratios: cornstarch: polycaprolactone: polylactic acid: plasticizer: compatibilizer = 50: 16: 11: 12: 1; the plasticizer is glycerin, diglycol At least one of alcohol, sorbitol, ethylene glycol or propylene glycol; the compatibilizer is at least one of vegetable oil, mineral oil, titanate coupling agent or aluminate coupling agent; 2. dry The resin is melt-spun with a twin-screw spinning machine, the spinning temperature is 155-190°C, the temperature of the spinneret is 10-30°C lower than the average temperature of the screw heating area, and the primary fiber is obtained, and then stretched at a temperature of 70-80°C 2 to 4 times, and then dried and wound to obtain biodegradable starch-based fibers.

The invention discloses a polyolefin non-woven fabric enhanced gel polymer electrolyte membrane and a preparation method thereof. The preparation method comprises the following steps of: adding a polymer in a mixed solvent of acetone and N, N-dimethylformamide (DMF) according to a certain volume ratio, so as to prepare a clear polymer solution; carrying out surface modification on non-woven fabric by a radiation grafting method, so that the bonding force between the non-woven fabric and the polymer can be improved; coating the polymer solution on the modified non-woven fabric in a scraping manner, and soaking the coated non-woven fabric for water bath, so as to remove the solvent and dry; and soaking a prepared composite membrane in electrolyte for activation, so as to obtain the enhanced gel polymer electrolyte membrane. The non-woven fabric enhanced gel polymer electrolyte membrane provided by the invention has the advantages of good mechanical property, good thermal property and high ion conductivity. The preparation method provided by the invention has the advantages of simple process and low cost, and is applicable to industrial production.

The invention discloses a preparation method of a modified polyacrylonitrile film, and the process comprises the following steps: 1. hydrophilic material solution preparation, that is cutting a hydrophilic material into a length of 2-10 mm, adding into a cosolvent, stirring and dissolving; wherein the hydrophilic material is natural high-molecular polymer with a carboxyl, an amino or a hydroxyl on a main chain or a side chain, and comprises at least one of bombyx mori silk fibroin, tussah silk fibroin, or spider silk fibroin; the cosolvent is a common solvent for polyacrylonitrile and the hydrophilic material, comprises a NaSCH aqueous solution or a ZnCl2 aqueous solution, and has a mass concentration of 50-60%; the dissolving temperature is 70-90 DEG C, and the time is 0.5-1 h; the mass concentration of the hydrophilic material solution is 0.5-3%; 2. blended solution preparation, that is adding polyacrylonitrile into the hydrophilic material solution, stirring and dissolving, performing heat preservation under vacuum, allowing the solution to stand for deaeration so as to obtain the blended solution; 3. routine film scraping and posttreatment.

The invention relates to the malic acid salt of N-[2-(diethylamino)ethyl]-5-formyl-2,4-dimethyl-1H-pyrrole-3-carboxamide, to the use thereof as an intermediate for preparing the malic acid salt of sunitinib, and to pharmaceutical compositions comprising said malic acid salt of sunitinib.

The invention discloses a methanol solvate of a doripenem intermediate as shown by a formula I and a preparation method thereof, wherein PNB in an intermediate I represents para-nitrobenzyl, and PNZ represents para-nitro-carbobenzoxygroup. The methanol solvate has the advantages of high purity, good stability, and easy operation and storage; and the preparation method is simple and reliable, and is suitable for industrial implementation.

A method for reinforcing carbon fibers, which uses electrostatic spraying to coat carbon nanotubes on the surface of carbon fibers to compensate for surface structural defects and increase its strength. One of carbon nanotubes, carboxylated carbon nanotubes or aminated carbon nanotubes, the dispersion liquid is one of dimethylformamide, acetone or ethanol; the spray liquid is applied with 10-40kV positive static electricity, and the carbon fiber tow Flattened and grounded to form a spray liquid receiver; the spray liquid is sprayed on the surface of the carbon fiber by electrostatic spraying, and the spray amount is controlled to 1000: (0.4-10) in terms of the weight ratio of carbon fiber to carbon nanotube. The residence time required for carbon fiber to reach the necessary amount of carbon nanotube coating is usually only 0.5 to 5 minutes, and the tensile strength of carbon fiber with increased strength after repair can be increased by more than 100%. The process is simple, the cost is low, the efficiency is high, and industrial application is easy to realize.