38results about How to "Industrialized production" patented technology

The invention relates to a graphene aerogel-supported nano-metal or metal alloy catalyst and a preparing method thereof and belongs to the technical field of nanometer material application and catalysis. The preparing method is characterized by comprising the following steps: using graphene oxide and a metal compound as precursors, and obtaining a catalyst with small-size nano-metal and nano-metal alloy particles supported by a three-dimensional porous graphene aerogel by a continuous reduction process. In the catalyst, the varieties of the nano-metal and the nano-metal alloy are selected from Pt, Au, Ag, Pd, Ru, Rh, Pb, Fe, Co, Ni, Ir, Cu and the like; the varieties can be matched at will by any mixing ratio; the nanometer particles are about 2-6nm in size and uniformly distributed on a graphene sheet layer. Meanwhile, the graphene is assembled into a three-dimensional porous aerogel structure, the average size of pore diameters is 1-2 micrometers, high specific area, high electron transmission rate and high mass transmission rate can be obtained, and the agglomeration of the graphene and the nanometer particles is prevented. The composite has excellent catalytic performance, and the components of the catalyst can be selected according to different requirements.

The invention relates to a preparation method of palbociclib. The method comprises the following steps: carrying out N-acetoacetylation reaction by using cyclopentylamine and an acetoacetylation agent to obtain N,N-di(acetoacetyl) cyclopentylamine (II), carrying out intramolecular condensation on N,N-di(acetoacetyl) cyclopentylamine (II) in the presence of an alkaline reagent to obtain N-cyclopentyl-3-acetyl-4-methyl-6-hydroxy-2-pyridone (III), enabling N-cyclopentyl-3-acetyl-4-methyl-6-hydroxy-2-pyridone (III) to react with a formylation reagent to prepare N-cyclopentyl-3-acetyl-4-methyl-5-formyl-6-chlorine-2-pyridone (IV), carrying out pyrimidine ring reaction by using N-cyclopentyl-3-acetyl-4-methyl-5-formyl-6-chlorine-2-pyridone (IV) and N-(5-(4-tert-butoxy carbonyl-1-hexahydropyrazinyl)-2-pyridyl) guanidine sulfate (V), and then hydrolyzing under the alkaline condition to prepare palbociclib. The preparation method of palbociclib is easily available in raw materials, short in process, simple and convenient to operate and safe and environmentally friendly in process.

The invention provides a general-grade blended doped transparent flame-retardant masterbatch used for PC material, and a preparation method and applications thereof. The general-grade blended doped transparent flame-retardant masterbatch used for PC material is prepared from 30 to 40% of PC resin, 10 to 30% of brominated epoxy resin, 5 to 15% of organosilicone, and 15 to 55% of bisphenol A, and is prepared via steps of blending and doping, and extrusion molding. The general-grade blended doped transparent flame-retardant masterbatch possesses excellent flame resistance; flame resistance is capable of reaching V0 grade; transparency is not influenced; a silicon-containing system is capable of improving aging resistance of transparent PC material, and mechanical properties, physical properties, and thermal properties are maintained; transparency of PC material is not influenced by adding of 5% of the general-grade blended doped transparent flame-retardant masterbatch into PC material; direct injection moulding can be realized; flame resistance of an obtained PC material is capable of reaching V0 grade; industrial production can be realized; and the general-grade blended doped transparent flame-retardant masterbatch is widely used.

The invention relates to a preparation method used for an arc-shaped rotary solid wood stair beam, comprising the steps as follows: preparing solid wood small billets, secondary drying, colour separating and material selecting, material cutting, finger jointing, four-surface plane forming, thin sheet cutting, plate assembling, precise saw width-fixing, sanding thickness-fixing, explosive-proof trough cutting on single plate, assembling and forming; the assembling and forming comprise the steps as follows: 1: a die is firstly adjusted; 2: step (height and width of step) of the stair is determined; 3: the single plate is fixed; 4: when the layer number required by the stair and the thickness of the beam are achieved, the die is locked and pressurized. The stairs produced according to the invention have good stability and no rebounce, are not easy to deform, have smooth and graceful whole lines meeting the requirement of decoration, have high bearing strength, are firm and reliable, have strong impact force resistance, ensure the safety, have high preciseness of the ladder radian, can be adjusted according to the requirement, can be produced industrially and have quick effect.

The invention discloses application of purple sweet potato polysaccharides in preparation of lung cancer resistant drugs. The purple sweet potato polysaccharides are heteropolysaccharides extracted from Ningzi #4 purple sweet potatoes, and are mainly composed of three kinds of monosaccharides of xylose, rhamnose and glucose, wherein the xylose content is 84.92+/-1.57%, the rhamnose content is 2.15%, the glucose content is 0.57%, and the average molecular weight is 0.82*10<4>Da. The purple sweet potato polysaccharides have effects of obviously inhibiting cell proliferation of lung cancer cellssuch as A549, H1299 and H460, the BALB/c mouse subcutaneous tumor volume subjected to purple sweet potato polysaccharide FsPSP-1 treatment is obviously reduced, and the tumor weight is obviously reduced. The invention provides novel application of the purple sweet potato polysaccharides in preparation of lung cancer resistant drugs, the application field of the purple sweet potato polysaccharidesis broadened, a material basis is provided for developing natural activity antitumor drugs, and the application has potential social benefits and economic benefits.

The invention discloses a formaldehyde absorbing material and a preparation method thereof. The formaldehyde absorbing material is prepared from the following raw materials in parts by weight: 1-4 parts of a humectant, 0.2-0.8 part of a defoaming agent, 8-14 parts of ammonium iron sulfate, 3-9 parts of silicon dioxide, 15-25 parts of ceramic powder, 35-45 parts of deionized water and 1-4 parts of an ultraviolet light absorber. The preparation method comprises the following steps: 1. weighing the raw materials in the parts by weight, mixing ammonium iron sulfate, silicon dioxide, the ceramic powder, the deionized water and the ultraviolet light absorber, and stirring for 2-6 minutes at the speed of 10000-12000 revolutions per minute (rpm) to obtain a mixture I; 2. feeding the humectant into the mixture I, stirring and heating up to 40-50 DEG C, carrying out heat preservation for 1-3 minutes, feeding the defoaming agent, and continuously stirring to obtain a mixture II; 3, putting the mixture II into a double-screw extruder to extrude the particle absorbing material. The formaldehyde absorbing material is high in absorption capability and low in cost, and can be recycled.

The separation equipment comprises an outer fixing frame, an infusion pump system is arranged on the fixing frame, a valve control system is arranged on the infusion pump system, four chromatographic columns are symmetrically arranged on the two sides of the fixing frame, an on-line monitoring device is arranged at one end of the fixing frame, and a valve control system is arranged on the valve control system. The method has the beneficial effects that the filler separation effect is good, the filler can be recycled, the environmental pollution is small, the super chromatographic purification process is filled, the product concentration is high, the concentration cost is low, the weaving risk is small during product concentration, and the super chromatographic purification process is low in production cost, good in product quality, high in EPA yield, environmentally friendly and beneficial to industrial production.

A resin nanocomposite, including a resin skeleton structure and nanoparticles. The resin skeleton structure is an aminated polystyrene. The nanoparticles are dispersed in the resin skeleton structure. The specific area of the nanocomposite is between 50 and 300 m²/g, and the pore size thereof is between 5 and 40 nm. The invention also provides a method for preparing the resin nanocomposite, the method including: 1) mixing and dissolving a linear polyethylene with a chloromethyl polystyrene or a polyvinyl chloride to yield a polymer solution, and adding the nanoparticles to the polymer solution; 2) adding an alcohol solution to liquid nitrogen; adding the mixed solution dropwise to the liquid nitrogen to yield a mixture; allowing the mixture to stand; collecting, washing and drying resin beads to yield a composite material; and 3) adding the composite material to an amine solution for reaction, and washing and drying the resulting product.

The invention relates to the technical field of graphene conductive materials, and in particular relates to graphene conductive paste for a textile-based sensor. The graphene conductive paste is prepared by blending a graphene solution and a water-soluble polyurethane solution according to a certain proportion, the graphene conductive paste is a solution in which the effective content ratio of graphene to polyurethane is 1% to 6%, the graphene solution is prepared by adding a dispersing agent in the process of adding a reducing agent into a graphene oxide solution for reduction, and the concentration mass percent of the graphene solution is 0.1 to 5%. The invention further discloses a preparation method of the graphene conductive paste for the textile-based sensor. The graphene conductive paste prepared by the invention can be coated on textiles, such as yarns and fabrics, so that the textiles have a sensing function, have excellent conductivity, washing resistance and good thermal responsiveness, and the graphene conductive paste is worthy of wide popularization and application.

Disclosed are a formaldehyde absorbing material and a preparing method thereof. The formaldehyde absorbing material comprises, by weight, 1 to 4 parts of glycerine, 0.2 to 0.8 part of antioxidant, 8 to 14 parts of polyacrylamide, 3 to 9 parts of silica, 15 to 25 parts of plastic powder, 35 to 45 parts of deionized water, 1 to 4 parts of ultraviolet absorbent, 1 to 5 parts of carbon fiber, 2 to 4 parts of preservative, and 12 to 18 parts of glass fiber. The preparing method includes mixing the polyacrylamide, the silica, the plastic powder, the carbon fiber and the glass fiber, putting mixture in a reactor, heating the reactor at 1000 to 1200 DEG C for 10 to 15 min to obtain first mixture; adding the glycerine, the antioxidant, the deionized water, the ultraviolet absorbent and the preservative into the first mixture, performing ultrasonic treatment after mixing to obtain second mixture, and extruding the second mixture in a double-screw extruder to obtain particle absorbing material, the formaldehyde absorbing material. The formaldehyde absorbing material is high in absorbing rate and helps effectively ensure physical health.