126results about How to "Simple technical route" patented technology

The invention relates to an aerogel composite material, in particular to a glass fiber reinforced silicon dioxide aerogel composite material and a preparation method thereof. The excellent properties of aerogel are maintained, the mechanical properties of the aerogel are reinforced, and the glass fiber reinforced silicon dioxide aerogel composite material has good integrity and certain strength. The glass fiber reinforced silicon dioxide aerogel composite material is prepared by compounding glass fiber and silicon dioxide aerogel, wherein the glass fiber is a reinforcement, and the content ofthe glass fiber accounts for 1-15% total mass of a sample; the silicon dioxide aerogel is a matrix, tetraethoxysilane is a silicon source material, and methyltrimethoxysilane or methyltriethoxysilaneis used as a silicon source co-precursor. The preparation method comprises the following steps of: firstly, pretreating the glass fiber; then, preparing glass fiber reinforced silicon dioxide composite wet gel; and finally, aging, secondarily modifying and drying the silicon dioxide composite wet gel.

The invention discloses a preparation method of a photovoltaic glass surface antireflection film, which is characterized by comprising the following steps of firstly, preparing inorganic-organic hybrid silicasol; secondly, coating; thirdly, hydrophobic treatment; and fourthly, solidification treatment. Compared with the prior art, the invention has the advantages that the film-substrate cohesion between an antireflection film and substrate photovoltaic glass is stronger, and therefore, the wiping resistance of the coated photovoltaic glass surface antireflection film is enhanced; a layer of hydrophobic group with low surface energy is formed on the surface of the antireflection film, and therefore, the corrosion of moisture to a film microstructure is reduced, and the long service life of the coated photovoltaic glass is ensured; and the invention has low whole process cost and simple technical route and is suitable for industrial and large-scale application.

The invention relates to a high melt strength polypropylene material and a preparation method. The high melt strength polypropylene material consists of 100 parts of polypropylene, 5-60 parts of high-melting point crystalline polymer, 2-50 parts of compatilizer, 0-40 parts of polyethylene and other additives according to parts by weight. The preparation method includes the following steps of: measuring the polypropylene, the high-melting point crystalline polymer, the compatilizer, the polyethylene and a processing agent according to formula amount, premixing the materials uniformly and then melting and blending the materials by a screw extruder at controlled temperature and rotating speed, thus obtaining the high melt strength polypropylene material which is applicable to extrusion foaming and other hot forming technologies.

The invention relates to a method for preparing a phosphorus-containing organosilicon flame retardant, and provides a method for preparing a phosphorus-containing flame retardant, which has the advantages of rich raw materials, low cost, simple production technology, no HCl generated in a reaction, and recyclable by-products of the reaction to solve the technical problems. The preparation process comprises the following steps of: reacting an active phosphorus compound with a hydroxyl-containing polysiloxane in the presence of a catalyst, wherein the molar ratio of the active phosphorus compound to the hydroxyl-containing polysiloxane is 1:1-20; and after the reaction, filtering, and steaming to remove low-boiling-point substances to obtain the product of the phosphorus-containing organosilicon flame retardant.

The invention discloses a high-temperature sewage treatment reverse demulsifier of ultra-heavy oil. The method comprises the following steps of preparing chlorinated polyether by taking propanetriol and epichlorohydrin as materials and boron trifluoride ether solution as an initiator; preparing cationic poly ether by placing the chlorinated polyether and trimethylamine in a high-pressure reactor; by taking carbinol as a solvent, and boron trifluoride diethyl etherate as the initiator, repeatedly and alternatively carrying out Michael addition reaction and amidation by ethanediamine, methyl acrylate and the like to prepare 3.0-generation dendritic macromolecule polyamide-amine; by taking polyethylene glycol and poly propylene glycol as materials, and potassium hydroxide powder as a catalyst, adding polypropylene glycol to prepare non-ionic polyether after the polyethylene glycol reacts a period of time; finally by taking 3.0-generation polyamide-amine as a cross-linking agent, preparing the modified composite polyamide-amine-polyether high-temperature sewage treatment reverse demulsifier of the ultra-heavy oil by compounding cationic polyether and non-ionic polyether.

The invention provides a preparation method and applications for a metal monoatomic material. The method selects a metallic compound containing a metal-nonmetal coordination structure; destruction toa catalytically active structure can be effectively prevented through a processing mode of performing pyrolysis after the metallic compound, a protective agent and any carbon substrates are simply mixed; and therefore, the metal monoatomic material can be efficiently prepared and shows good performance. The technical route of the method is simple and effective and has universality and good application prospects.

The invention relates to a preparation method for fiber reinforced silica aerogel oil absorbing sponge. The material is applied to oil and water separation, belonging to the technical field of environment, A specific process of the method comprises the following steps: hydrolyzing a cellulose reinforced phase in an acidic catalytic liquid added with a dispersant to obtain a cellulose hydrolysate; then carrying out heating reaction on a silicon precusor and the cellulose hydrolysate under the action of an alkaline catalyst to obtain a fiber reinforced silica wet gel; and mechanically squeezing and drying the fiber reinforced silica wet gel at normal pressure and normal temperature to obtain the fiber reinforced silica aerogel oil absorbing sponge. According to the preparation method provided by the invention, the original Si-O bond in the silica aerogel and the aldehyde acetal group C=O in the cellulose reinforced phase are combined in form of a covalent bond, so that the prepared fiber reinforced silica aerogel oil absorbing sponge not only has excellent oil absorbing performance and oil retaining ability, and moreover, the mechanical strength of the material is improved and the application field of the material is expanded. Moreover, the raw materials of the preparation method are wide in source and low in cost, and the technical route is simple.

The invention provides an application of a metal derivative containing chlorophyll and hydrolyzate thereof as a plant growth regulator. The metal derivative containing chlorophyll and hydrolyzate thereof is selected from chlorophyll metal chelate, a chlorophyllin metal chelate and a monomeric metal chelate obtained by separating a chlorophyllin mixture. The chlorophyll is a green pigment extracted from a natural plant raw material and provided with a phaeophytin mother ring structure. The chlorophyllin is a mixture of multiple dihydroporphin components obtained by hydrolyzing the chlorophyll.The monomeric chlorophyllin component is selected from dihydroporphin-e4, dihydroporphin-e6 or phaeophorbide a monomethyl ester. Metal ions comprise bivalent or trivalent transition metal manganese, iron, copper or zinc ions in an oxidation state. The plant growth regulator provided by the invention has the advantages of safety, non-toxicity, low residue, strong activity, good effect, stable product property, controllable and reliable quality and easiness in promotion and application; the chlorophyll content of the plant can be increased, the root growth is promoted, the germination ratio is increased, the stress resistance is enhanced and the yield is also increased.

The invention discloses a method for identifying the subcarrier modulation constellation diagram of wireless optical communication under atmospheric turbulence. The method comprises the following steps that: an atmospheric turbulence channel mathematical model is established; the constellation diagram of subcarrier modulation signals which have passes through an atmospheric turbulence channel is obtained according to the atmospheric turbulence channel mathematical model, fuzzy C-means clustering is performed, and the hard trend mean feature parameter of cluster centers is extracted; and an improved three-layer BP neural network classifier is designed, the feature parameter is adopted to train the improved BP network, and the trained network is adopted to identify the constellation diagram.The method for identifying the subcarrier modulation constellation diagram of the wireless optical communication under the atmospheric turbulence of the present invention has the advantages of simpletechnical routes, economical performance, high practicability, high feasibility and easiness in implementation. With the method adopted, the correct recognition rate of subcarrier high-order modulation under severe light intensity fluctuation caused by atmospheric turbulence can be improved, and the influence of the atmospheric turbulence on the detection of the constellation recognition can be well suppressed.

The invention discloses nitrogen-doped carbon nanocage-coated platinum nanoparticles (Pt@NCNCs) as a methanol-tolerant oxygen-reduction electrocatalyst. With the NCNCs, which are uniform in nitrogen distribution, high in purity and high in quality and have independent intellectual property, prepared by a chemical vapor deposition method as a carrier, anchoring and coordination effects of nitrogen can be directly utilized without surface pretreatment on the carrier; and the Pt nanoparticles are extremely evenly coated with an NCNCs cage to form a York-shell catalytic material. The oxygen-reduction electrocatalyst is simple in preparation process and friendly to environment. The oxygen-reduction catalytic activity is equivalent to the best result reported by the existing literature. Remarkably, the catalyst has complete methanol tolerance while a commercial Pt/C catalyst and an NCNCs-loaded Pt metal nanoparticles catalyst are extremely poor in methanol tolerance. The stability performance is good and far better than that of the Pt/C catalyst and the Pt/NCNCs catalyst.

The invention discloses a method and a system for producing rPET bottle-grade polyester chips. The method comprises the following steps: an esterification step, a pre-polycondensation step, a final polycondensation step and a solid-phase polycondensation step, in the esterification step, raw materials including waste PET polyester bottle fragments, terephthalic acid and ethylene glycol are added into an esterification device, the waste PET polyester bottle fragments are subjected to an alcoholysis reaction, and meanwhile, terephthalic acid and ethylene glycol are subjected to an esterificationreaction. The method is low in investment, simple in technical route, low in raw material requirement and good in product quality; an original polyester bottle chip production device is adopted, thewaste polyester bottle fragments are subjected to alcoholysis by utilizing ethylene glycol which is one of polyester bottle production raw materials, so that the closed circulation of the ethylene glycol is realized, the esterification reaction kettle has a dual-purpose function, and the PET polyester chips meeting the national standard level of raw materials can be produced by utilizing the wastePET polyester bottles.

The invention discloses a combined technology for extracting and separating small-molecular active peptides from marine organism protein resources. The combined technology comprises the steps as follows: (1) an enzymatic hydrolysate is prepared through enzymolysis of marine organism protein; (2) the marine organism protein enzymatic hydrolysate is subjected to crude separation with a membrane separation technology, and small-molecular active peptides are obtained; (3) all components are obtained through sephadex gel chromatographic separation of the small-molecular active peptides; (4) all thecomponents are further separated through ion exchange chromatography and separation products of different components are obtained; (5) the separation products are purified through reverse high performance liquid chromatography, and a series of small-molecular active polypeptide compounds are finally obtained. The technical route is simple, feasible and easy to implement, a series of small-molecular active polypeptide compounds can be directly obtained from multiple marine protein resources, and research work such as structure identification, pharmacological activity research, structure-activity relationship study of small-molecular active peptide compounds with different sources and types, screening of computer simulation drugs and the like can be carried out.

The invention discloses a mild amino acid type surfactant and a preparation method and an application thereof. The preparation method disclosed by the invention comprises the following steps: hydrolyzing oat protein polypeptide by using an enzyme, adsorbing with activated carbon and then reacting with acyl chloride to obtain a mixed solution of acylated oat amino acid sodium salt; finally, reducing the pH value, regulating the pH value to 6.0, filtering, removing the filter residues and retaining filtrate; continuing to reduce the pH value of the filtrate, collecting the obtained precipitate and washing the precipitate; uniformly mixing the precipitate with water, and reacting the precipitate with a neutralizer to obtain the mild amino acid type surfactant. The surfactant is high in purity and low in chromaticity, an acylated oat amino acid surfactant with active matter content larger than 30% can be obtained, and the form of the surfactant is still mobile liquid, so that the surfactant is conveniently added in the formula and is convenient to use; the surfactant is mild and is particularly suitable for the preparation of personal care products, and even toiletries for children.

The present invention discloses a preparation method of permeable brick by using phosphorous slag, which uses 50 to 150 parts of cement, 15 to 30 parts of water, 140 to 200 parts of bonded silica sand and 140 to 200 parts of phosphorous slag as raw materials, the permeable brick is prepared by the process of vibration, pressure forming and normal temperature curing or steam curing as that of conventional cement brick. The cement is ordinary portland cement with the strength higher than P.O 32.5, portland cement with the strength higher than P.I 32.5 or composite slag cement with the strength higher than P.C 32.5. The partical size of the bonded silica sand is controlled to be between 2.5 mm to 7 mm, the partical size of the phosphorous slag is controlled to be between 0.6 mm to 2 mm. Normal temperature curing is used at the temperature between 5 to 45 DEG C for 1 to 28 days, or steam curing is used at the temperature between 60 t0 120 DEG C for 1 to 2 days. The performance index of the permeable brick prepared by the method meets the requirement in <permeable brick> JC/T945-2005. The permeable brick has good water permeability, mechanical property and abrasive resistance, is applicable in building field widely and reduces the waste and pollution caused by phosphorous slag.

The invention provides a selenium-rich black fungus planting method which includes the steps: inoculation; fungus bag cultivation; cutting and discharging funguses; discharged fungus management; harvesting. The planting method is simple and practical in technical route, easy to operate and wide in application range. Selenium-rich black funguses acquired by the planting method are detected by an agricultural product safety and environment quality detection center of Shenyang Institute of Applied Ecology, Chinese Academy of Sciences, calcium content is 0.80g/100g, and selenium content is 0.883mg/kg. According to the planting method, selenium-rich black funguses are planted, health food is provided for consumers, a new path is developed for farmer richness, and the selenium-rich black funguses have good economic benefits and wide domestic and foreign markets.

The invention discloses a venturi circulation loop reactor for continuous production of ethephon.The reactor comprises a reactor body, a venturi mixer located at the upper end of the reactor body and a circulating heat exchanger.The venturi mixer comprises a venturi nozzle, a mixing chamber and a diffusion chamber which are sequentially connected from top to bottom.An induction chamber is arranged on the outer side of the venturi nozzle which extends out of the top of the reactor body.One end of the circulating heat exchanger is connected with the bottom end of the reactor body, and the other end of the circulating heat exchanger is connected with the venturi nozzle.The outer side of the induction chamber is connected with an air inlet.The outer side of the nozzle is connected with a raw material port.Compared with the prior art, energy consumption and equipment investment expenses can be greatly reduced, the occupied area can be reduced, and investment of capital construction is saved.The technical route is simple, equipment is compact, product quality is good, energy is saved, consumption is reduced, and the requirement for sustainable development is met.

The invention discloses a method of preparing a super-hydrophobic fabric by plasma treatment of a nano particle composite coating. The method is characterized by comprising the steps of putting a polyester fabric in a washing agent for ultrasonic cleaning, taking out the polyester fabric, repeatedly cleaning the polyester fabric in deionized water for many times, taking out and drying the polyester fabric for future, preparing a nano particle composite solution, performing ultrasonic oscillating till complete dispersion, soaking the polyester fabric, taking out and drying the polyester fabricfor future, and performing plasma discharge treatment on the polyester fabric to form the super-hydrophobic fabric. The prepared super-hydrophobic material is nontoxic, simple in operation technology,easy to industrialize and environmentally friendly and has highdurability.

The invention relates to a fuel cell technology, and aims to provide preparation of a monatomic palladium catalyst and application of the monatomic palladium catalyst in a direct formic acid fuel cell. The preparation method comprises the following steps of: preparing an o-phenylenediamine cyclodextrin inclusion compound from o-phenylenediamine and [beta]-cyclodextrin, adding the o-phenylenediamine cyclodextrin inclusion compound into a chloropalladic acid solution, and performing stirring to obtain a palladium coordinated o-phenylenediamine cyclodextrin inclusion compound solution; adding sodium chloride, carrying out liquid nitrogen flash freezing, and performing drying to obtain a precursor; carbonizing the precursor under the protection of nitrogen atmosphere, performing cooling, washing and drying to obtain the monatomic palladium catalyst. The technical route is simple, universality is achieved, and generation of impure phases can be avoided. The monatomic palladium catalyst hashigher electrocatalytic activity, and the cost can be effectively reduced. The co-catalytic application of the monatomic palladium catalyst and the cocatalyst (VO)SO4 provides a new thought for the design and performance improvement of the direct formic acid fuel cell, and is beneficial to the commercial development of the fuel cell.

The invention discloses a method of extracting steryl ester from a high-temperature deodorized substance of edible oil through combination of enzyme hydrolysis and molecular distillation. In the method, with a high-temperature deodorized distillate from a soybean oil refining process as a raw material, high-boiling-point substances are separated through the molecular distillation and then are further separated through enzyme-catalyzed hydrolysis to obtain a steryl ester mixture, and finally, the steryl ester is purified out from the mixture through the molecular distillation, thereby obtaining a natural steryl ester product being 60-70% in purity.

The invention discloses a double-phase laminated structure steel plate and a preparation method thereof, and belongs to the technical field of steel production. The preparation method of the dual-phase laminated structure steel plate comprises the following steps that a first surfacing layer and a second surfacing layer which are alternately distributed are formed through alternately surfacing different first welding wires and second welding wires on a steel substrate, and the double-phase laminated structure steel plate is obtained after the rolling and annealing treatment; and the first welding wires and the second welding wires are selected from one of ferritic welding wires, martensite welding wires and austenite welding wires. The preparation method directly adopts any two of the ferritic stainless steel welding wires, the martensite stainless steel welding wires, the austenite stainless steel welding wires and bainitic stainless steel welding wires to form a double-phase laminated structure by surfacing, the double-phase laminated steel plate with ideal performance can be obtained through rolling and annealing treatment, the process flow is simple, the processing efficiency is high, full automatic production is easy to realize, the production cost is saved, and the effective control over the microstructure and macroscopic mechanical properties of the steel plate is realized.

The invention discloses a method for preparing mesoporous boron nitride with uniform pores by adopting a molten mass bubble template process. The method comprises the following steps: mixing a nitrogen source, a boron source and an additive; keeping a temperature of 220 to 500 DEG C for 0.1 to 2 hours; subsequently, keeping the temperature of 700 DEG C for 1 to 20 minutes; forming pores to obtaina precursor; performing pyrolysis at 900 to 1300 DEG C in nitrogen, hydrogen-nitrogen mixed gas or nitrogen-ammonia mixed gas to obtain a rough product; washing the rough product in hydrochloric acidand filtering; cleaning the product with deionized water and ethanol to obtain porous boron nitride powder. The method disclosed by the invention has the advantages that a product specific surface area is 150 to 600m<2>/g, the most probable size of apertures is 18 to 25nm, a technological route is simple, and the method is suitable for mass preparation.

The invention relates to a high-strength and high-conductivity layered silicone rubber composite material and a preparation method thereof. The high-strength and high-conductivity layered silicone rubber composite material comprises a carbon cloth/silicone rubber conductive layer A, a rubber conductive layer C with silver-plated copper powder as conductive filler and a silicone rubber tensile layer B with nickel nanowires and graphene as reinforcement, the conductive layer and the tensile layer are alternately laid in a mold to form a multi-layer ABC multi-layer structure, and the rubber sheet is formed through hot-pressing vulcanization and two-section vulcanization. The preparation method has the advantages that the technical route is simple, the cost is low, no interface problem exists between layers, and the obtained conductive rubber material has good mechanical properties and excellent conductivity. The density of the ABC three-layer conductive silicone rubber with the thickness of 2 mm is as low as 1.8 g/cm < 3 >, the resistivity can be as low as 0.01 omega.cm, the tensile strength can reach 4.12 MPa or above, the right-angle tear strength can reach 12.9 N/mm or above, and the X-waveband electromagnetic shielding effectiveness can reach 50 dB or above. The material can be applied to electronic devices and aircrafts as an electromagnetic shielding sealing material with high conductivity and high strength requirements.

The invention discloses a high-yield planting technology for Shatian pomelo in the Rong County. The high-yield planting technology is characterized by comprising the following steps: reasonable soil selection and seedling raising; reasonable fertilizer application and watering; fertilizer application before flowering; application of a compound fertilizer and decomposed poultry manure; ditching around a land under a tree canopy for fertilizer application; application of a fruit-stabilizing fertilizer and a bough-promoting fertilizer before and after fruit picking, wherein a compound fertilizeris used as a main fertilizer, and poultry and livestock manure is used as an auxiliary fertilizer; flower thinning, i.e., flower panicle thinning, flower bud thinning and flower petal thinning, wherein the fruit setting ratio is 6: 1; pollination, fruit thinning, and pollination after flower thinning, wherein large fruits are reserved and small fruits are removed after fruits grow to 1 cm in diameter; and pesticide spraying and pest killing. The high-yield planting technology provided by the invention has the advantages of fast action, high yield, high Shatian pomelo selling price, simple technical route, easy operation, scientific planting management, reasonable fertilizer application and watering, compact links, easily-understood technology, less investment, high fruit yield of a Shatianpomelo tree, and applicability to popularization and application.