Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
49results about How to "Achieve cross-linking" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Composite anode material for lithium ion battery and preparation method thereof
ActiveCN103456928AAchieve cross-linkingIntegrity guaranteedManufacture by sprayingSilicon alloySodium-ion battery
The invention belongs to the technical field of lithium ion batteries, in particular relates to a composite anode material for the lithium ion battery. The composite anode material comprises an anode active substance and a coating layer coated on the surface of the anode active substance, wherein the anode active substance can be Si, SiOx or silicon alloy, the coating layer is polymer which is of a reticular structure, and the mass percent of the coating layer accounts for 1-20% of the anode material. Compared with the prior art, the composite anode material has the advantages that the polymer which is of the reticular structure and used as the coating layer is coated on the surface of the active substance in a cross-linking manner, the coating layer has the electron conduction property and the ion conduction property, so that the situation that the lithium ions can be inserted into and separated from the anode active substance particles smoothly is ensured; furthermore, the coating layer is of the reticular structure and has good mechanical strength, and therefore, the integrality of the anode active substance particles can be kept in the electrochemical cycle process, the deformation of an anode strip is relieved, the electrochemical cycle performance of the lithium ion battery is improved and the service life of the lithium ion battery is prolonged.
Owner:DONGGUAN AMPEREX TECH +1
Preparation method of epoxy chloropropane cross-linked chitosan microspheres
ActiveCN102443186AAchieve cross-linkingImprove adsorption capacityOther chemical processesPharmaceutical non-active ingredientsCross-linkChemical industry
The invention relates to the technical field of fine and deep processing and utilizing of medicines and aquatic products, and aims at providing a preparation method for preparing cross-linked chitosan microspheres with epoxy chloropropane as a cross-linking agent. The preparation method comprises the steps of: firstly preparing chitosan microspheres by an antiphase suspension method, making partial hydroxy on chitosan molecules to participate in cross-linking reaction with epoxy chloropropane as the cross-linking agent, thus converting linear chitosan molecules into reticular high polymer, and preparing cross-linked chitosan microspheres having a porous reticular structure with calcium carbonate as a pore-forming agent. The cross-linked chitosan microspheres prepared by the preparation method provided by the invention can be biodegraded, have good acid and base resistance, better adsorption effect on acid radical ions and proteins, and strong heavy metal ion loading capacity, and can be applied to foodstuff, medicine chemical industry and other fields.
Owner:ZHEJIANG MARINE DEV RES INST
Plant-based cellulose fibers with antibacterial, health-care and skin-care functions and preparation method thereof
ActiveCN107761183AGood antibacterialImprove antibacterial propertiesMonocomponent cellulose artificial filamentCellulose/protein filament chemical after-treatmentPotassiumCellulose fiber
The invention discloses plant-based cellulose fibers with antibacterial, health-care and skin-care functions and a preparation method thereof. Cellulose pulp, pilose asiabell root extract, radix angelicae sinensis extract and isatidis root extract are used as main raw materials, a second-layer capsule wall composite additive and a cellulose fiber spinning stock solution are fully mixed to form a primary blended liquid with high composite additive content, the primary blended liquid is added into the spinning stock solution through a pre-spinning injection device, and the materials are mixed again so that mixing uniformity is improved. The fiber has a Staphylococcus aureus inhibition rate of greater than or equal to 93.8%, an escherichia coli inhibition rate of greater than or equal to 90.2%, a Candida albicans inhibition rate of greater than or equal to 90.8% and multiple fiber amino acid contents of greater than or equal to 3.2mg / kg, and contains 12 kinds of trace elements such as iron, selenium, zinc, potassium, calcium and phosphorus and vitamins B1 and B2. The functional components in the pilose asiabell root, radix angelicae sinensis and isatidis root provide excellent antibacterial, health care and skin care functions for the fibers.
Owner:山西潞党服饰有限公司
Integrated avionics system for light aircrafts
InactiveCN106789499AReduce use and maintenance costsIncrease profitAttitude controlBus networksMulti-function displayPrimary flight display
The invention discloses an integrated avionics system for light aircrafts, and belongs to the field of integrated avionics systems of aircrafts. The integrated avionics system comprises a navigation subsystem, a communication subsystem and an indicating / recording subsystem; the communication subsystem comprises an audio control panel, a very high frequency station and an earphone microphone component; the indicating / recording subsystem comprises a primary flight display, a multifunctional display, an integrated processor, an engine parameter collector and an aircraft body state collector; the navigation subsystem comprises a flight environment monitoring system, a posture and direction control system and a radio navigation control system; the integrated avionics system disclosed by the invention can replace the original discrete instrument, reduce the incidence of human errors, improve the utilization rate of indicating contents of the indicating system, reduce the use and maintenance costs of general aircrafts, improve the attendance and the security of the general aircrafts and satisfy the client demands.
Owner:石家庄飞机工业有限责任公司
Ligament support and preparation method thereof
InactiveCN104043148AEliminate biocompatibilityAdjustable widthNon-woven fabricsProsthesisFiberNanofiber
The invention relates to a ligament support containing silk fibroin compound oriented nanofiber and a preparation method thereof, and belongs to the technical field of medical apparatus and instruments. The ligament support is prepared from oriented fiber combining silk fibroin with a medical high molecular synthetic material and has a porous three dimensional structure, the mass ratio of the silk fibroin and medical high molecular synthetic material in the compound oriented fiber is (1-20):(1-1), the diameter of the compound oriented fiber is 500nm-10000nm, the thickness of the ligament is 1mm-10mm, and the width of the ligament is 1mm-15mm. The ligament support has a uniform microstructure and good biocompatibility, provides a matrix structure for growing of ligament cells, and can be used for increasing the tensile strength of the ligament due to the compound fiber orientated structure. The ligament support is simple in preparation method and convenient to operate, the preparation process is controllable, and the preparation method is suitable for preparing the ligament supports of various sections and lengths.
Owner:WUHAN TEXTILE UNIV
Preparation method of novel hydrogel with low bacterial adhesion and sterilization and regenerable functions
The invention discloses a preparation method of novel renewable hydrogel with low bacterial adhesion and sterilization and regenerable functions and belongs to the technical field of hydrogel preparation. The preparation method specifically comprises steps as follows: 1) a UV polymerization reaction; 2) an esterification reaction; 3) an ATRP reaction; 4) a sliver-supporting reaction. The preparation method is simple and feasible, a polymerization method guarantees the effectiveness and controllability of the length of a functional polymer brush, and the long-time antibacterial effect is realized through slow release of silver ions. The product has a remarkable inhibition effect on escherichia coli and staphylococcus aureus; compared with an antibacterial product containing single components in the prior art, the product has greatly improved antibacterial efficiency. Besides, through the environmental responsibility of the functional polymer brush, shrinkage and extension of the polymerbrush due to the outside environment are changed, desorption of dead bacteria is further driven, and the regenerable antibacterial property of the hydrogel is realized.
Owner:ZHEJIANG UNIV OF TECH
Migration resistant halogen-free intumescent flame retardant and preparation method and application thereof
ActiveCN104098775AAchieve cross-linkingImprove water resistanceOrganic chemistryPolyolefinHigh humidity
The invention relates to the technical field of flame retardants, aims to solve the problems that a halogen-free intumescent flame retardant is easy to absorb moisture, is poor in water resistance, poor in compatibility in polyolefin and other polymers, is easy to migrate and precipitate under high temperature and high humidity conditions, and is low in surface treatment processing efficiency, easy to be damaged, and the like, discloses a migration resistant halogen-free intumescent flame retardant and a preparation method and application thereof, the migration resistant halogen-free intumescent flame retardant and preparation method and application thereof has a structural formula (I) as shown in the specification, the migration resistant halogen-free intumescent flame retardant realizes the flame retardant intermolecular crosslinking, and improves the water resistance, especially migration resistance and precipitation performance under high temperature and high humidity conditions.
Owner:HANGZHOU JLS FLAME RETARDANTS CHEM
Method for preparing polyacrylonitrile, acrylonitrile copolymer and mixture material thereof
InactiveCN101693769AImprove mechanical propertiesHigh temperature resistanceArtificial filament physical treatmentCarbon fibresCarbon filmCarbon fibers
The invention relates to a method for preparing polyacrylonitrile, an acrylonitrile copolymer and a mixture material thereof. One or multiple radiation cross linking is carried out from normal temperature to 135 DEG C under the condition of an inert atmosphere or air to obtain the crosslinking polyacrylonitrile, the acrylonitrile copolymer and the mixture material thereof with excellent mechanical performance and heat resistance. The crosslinking polyacrylonitrile, the acrylonitrile copolymer and the mixture thereof prepared by the method are applied to carbon materials, such as carbon fibers, carbon pipes, carbon films, carbon felt, carbon rods, and the like and a composite material thereof and can greatly improve the strength and the modulus of the materials, improve the heat resistance and have simple process.
Owner:刘剑洪 +2
High wet skid-resistant rubber composition for tyre surface
The invention relates to a high wet skid-resistant rubber composition for a tyre surface. Compared with the common tyre surface rubber composition, the high wet skid-resistant rubber composition has high wet skid resistance and can be used for a high-performance semi-steel radial tyre. A raw rubber system of the high wet skid-resistant rubber composition comprises butadiene-styrene rubber SBR 1721 and cis-butadiene rubber BR0150, a mass ratio of the butadiene-styrene rubber SBR 1721 in the raw rubber system is greater than or equal to 80%, 70-80 parts of a filler is used, a ratio of white carbon black in the filler is greater than or equal to 65%, and other raw materials comprise zinc oxide, stearic acid, an antiager 4020, an antiager RD, rubber protection wax, a silane coupling agent Si-69, aromatic hydrocarbon oil, a promoter CZ, a promoter DPG and common sulfur powder. The high wet skid-resistant rubber composition is mainly used for high-performance semi-steel radial tyre production, and can obviously improve tyre braking performances, shorten a braking distance and improve tyre controllability.
Owner:SICHUAN TYRE & RUBBER CO LTD
Waterborne environment-friendly polyurethane adhesive as well as preparation technology and application thereof
PendingCN108179001AImprove conversion rateHigh polymerization efficiencyPolyureas/polyurethane adhesivesEnvironmental resistancePolyurethane adhesive
The invention in particular relates to a waterborne environment-friendly polyurethane adhesive as well as a preparation technology and application thereof and belongs to the technical field of adhesives. The adhesive is prepared from the following components in parts by mass: a polyurethane pre-polymer formed by polymerizing 30.77 to 35.64 parts of polyglycol and 43.5 to 43.58 parts of diisocyanate, 0.45 part of a polymerization reaction catalyst, 6.27 to 7.85 parts of a hydrophilic chain-extending agent, 1.35 to 3.45 parts of a crosslinking agent, 3.55 to 10.25 parts of sodium hydrogensulfite, 7.5 parts of acetone and 32.5 to 36.5 parts of de-ionized water, wherein the polymerization reaction catalyst is dibutyltin dilaurate; the hydrophilic chain-extending agent is 1,4-butylene glycol-2-sodium sulfonate or dihydromethyl propionic acid; the crosslinking agent is trimethyl phosphate. According to the waterborne environment-friendly polyurethane adhesive, crosslinking is realized through hydrolysis and condensation of the sodium hydrogensulfite, the crosslinking density of waterborne polyurethane is increased, and properties including water resistance, solvent resistance, storage stability and the like are improved; the environment-friendly performance, the water resistance, the solvent resistance, the storage stability and the like reach product quality indexes required by users.
Owner:浙江圣腾胶业股份有限公司
Chlorosulfonated polyethylene coating adhesive cement and preparation method thereof
ActiveCN106280736AAchieve bondingAchieve cross-linkingEpoxy resin coatingsAdhesive cementPolymer science
The invention relates to a chlorosulfonated polyethylene coating adhesive cement and a preparation method thereof and belongs to the technical field of textiles. Chlorosulfonated polyethylene rubber is added to an internal mixer, then a reinforcing filler, maleic anhydride polybutadiene, epoxy resin, an anti-aging agent and a plasticizer are added, and standing is performed to obtain a rubber compound after mixing; a vulcanization accelerator, an imidazole epoxy hardener, sulfur and N-N'-m-phenylenedimaleimide are added to the rubber compound to obtain the masterbatch of the coating adhesive cement; the masterbatch is dissolved in a solvent to obtain the coating adhesive cement. The prepared chlorosulfonated polyethylene coating adhesive cement can make impregnation canvases directly adhered with a conveying belt coating adhere without a bonding compound, convenience is brought to manufacturing and production of conveying belts, and the manufacturing costs of the conveying belts are saved to some degree.
Owner:无锡宝强工业织造有限公司
Cross-linkable and re-dispersible polymer powder with high adhesive property
The invention provides cross-linkable and re-dispersible polymer powder with high adhesive property as well as a preparation method and use of the polymer powder. The polymer powder is prepared from a single olefinic bond unsaturated monomer unit with hydroxymethyl or carbonyl, a single olefinic bond unsaturated monomer unit with carboxyl and hydroxyl, an unsaturated monomer unit formed by a (methyl) alkyl acrylate and vinyl aromatic compound of non-branched or branched alcohol with 1-15 carbon atoms, and water-soluble polymer protective colloid. The polymer powder disclosed by the invention has excellent self-adhesive performance and substrate bonding performance; the polymer powder and the aqueous dispersion thereof can be subjected to cross-linking reaction in the constructing and drying processes by virtue of the foundational groups such as hydroxymethyl, carbonyl, carboxyl, hydroxyl and the like, so as to achieve excellent self-adhesive performance and substrate bonding performance.
Owner:TAIYUAN INST OF TECH
Method for preparing underwater self-healing hydrogel
The invention discloses a method for preparing underwater self-healing hydrogel. The method comprises the following steps: respectively modifying adenine and thymine so as to obtain a base monomer bound with double bonds; taking water as a solvent, performing thermal initiation with a hydrophilic monomer methacrylamide by virtue of an initiator potassium persulfate, and performing free radical polymerization to form a high polymer of a three-dimensional meshed structure, thereby obtaining the self-healing hydrogel from the polymer by virtue of complementary pairing hydrogen-bond interaction of DNA base-pairs. According to the method disclosed by the invention, the hydrogel has excellent self-healing property in air and under the water by virtue of the hydrogen-bond interaction among the bases. The problem that the traditional hydrogel cannot be self-healed under the water is solved, and the service life of the hydrogel in water and in a wet environment is prolonged. The design thought in the invention provides a novel thought for development of the underwater self-healing hydrogel in future.
Owner:CHANGCHUN UNIV OF TECH
Preparation method of cross-linked polyimide fiber membrane
The invention discloses a preparation method of cross-linked polyimide fiber membrane. Firstly, polyamide acid with a certain solid content is synthesized, then through electrostatic spinning, polyamide acid nanofiber membrane is prepared, and then through hot-pressing amination treatment, polyimide nanofiber membrane is obtained; the prepared polyimide nanofiber membrane is soaked in a polyamideacid solution with a certain solid content for standing for a certain time, finally, the soaked fiber membrane is subjected to gradient heating and hot-pressing amination treatment, and thus the polyimide fiber membrane with a certain cross-linking degree is prepared. The method is simple in implementation process, adjustable and controllable in cross-linking degree, low in cost, suitable for allkinds of polyimides and good in application prospect.
Owner:HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH
Preparation method of metal ion adsorbent
InactiveCN109126738AHigh porosityImprove adsorption capacityOther chemical processesWater contaminantsCross-linkSorbent
The invention relates to a preparation method of a metal ion adsorbent and belongs to the technical field of adsorbents. According to the preparation method, bamboo is adopted as a carrier, pores in the bamboo are increased through a steam blasting method, an internal structure of the bamboo is destroyed, the adsorption performance is improved, and then the bamboo is put into a carbonization furnace for pre-carbonization; complete carbonization of the interior of the bamboo is avoided through pre-carbonization, internal materials of the bamboo are partially decomposed or degraded, the adsorption and binding capability is improved, and then composite glue and sea mud are added; active substances in the sea mud can be well combined with the composite glue to achieve wrapping of pre-carbonized particles, metal substances in the sea mud are utilized to promote cross-linking in the composite glue for improving the adsorption performance, the composite glue is cross-linked with acrylic acidunder the action of sodium hydroxide, and under the action of N,N-dimethyl amide and sodium hydrosulfide, sulfydryl is added to the surface of the adsorbent, so that the adsorption performance for metal ions is improved.
Owner:张剑
Preparation method of carbon nanotube fibers with high tensile strength
ActiveCN105256530AHigh tensile strengthAchieve cross-linkingPhysical treatmentCarbon fibresFiberEthylene diamine
The invention relates to a preparation method of carbon nanotube fibers with high tensile strength and belongs to the technical field of nanometer materials. The preparation method comprises the first step of preparing primary carbon nanotubes; the second step of functionalizing the carbon nanotubes and conducting plasma treatment on the primary carbon nanotubes through ethylene diamine or propylene diamine to obtain functionalized carbon nanotubes, wherein helium or nitrogen or oxygen is adopted as carrier gas in the plasma treatment process; the third step of making carbon nanotube fibers subjected to crosslinking reaction; the fourth step of removing organic diluents at the temperature between 50 DEG C and 200 DEG C to obtain the carbon nanotube fibers with high tensile strength. Compared with the prior art, the preparation method has the advantages that amino-functionalized carbon nanotubes are obtained, and the tensile strength is further enhanced by twisting a certain angle; by the adoption of a mixed solution of glycidyl amine and diluents, epoxy groups on the surface of the glycidyl amine can easily make contact with amino of the amino-functionalized carbon nanotubes and achieve crosslinking, so that the crosslinking rate is increased.
Owner:NANJING POLYTECHNIC INSITUTE
High-melt-strength copolyoxymethylene and preparation method thereof
The invention discloses a high-melt-strength copolyoxymethylene and a preparation method thereof, and belongs to the technical field of copolyoxymethylene. The preparation method comprises the following steps: carrying out a polymerization reaction on trioxymethylene, a comonomer, an initiator, a multi-element chain transfer agent or a mixture of the multi-element chain transfer agent and a chainextender in a double-screw reactor at 50-70 DEG C to complete branching and crosslinking copolymerization so as to obtain a polyformaldehyde powder; and mixing the polyformaldehyde powder with a high-efficiency trace additive, melting and plasticizing the obtained mixture at 180-230 DEG C through a thermal devolatilization process, and cooling and granulating the mixture to obtain the high-melt-strength copolyformaldehyde product. Branching and crosslinking of polyformaldehyde molecular chains are ingeniously achieved through the multi-element chain transfer agent or the mixture of the multi-element chain transfer agent and the chain extender, and the high-efficiency trace additive is used to improve the stability of the polyformaldehyde powder and reduce the loss of the melt strength caused by assistants.
Owner:KAILUAN ENERGY CHEM
High-strength moisture-resistant oxygen-resistant heat-resistant high-density polyethylene film and preparation method thereof
InactiveCN106084422AHigh strengthImprove moisture resistanceLow-density polyethyleneSodium Bentonite
The invention discloses a high-strength moisture-resistant oxygen-resistant heat-resistant high-density polyethylene film. Raw materials in parts by weight of the film include: 80-120 parts of high density polyethylene, 30-50 parts of EVA resin, 3-6 parts of ethylene-vinyl acetate copolymer, 4-8 parts of tertiary butanol hydrogen peroxide, 2-5 parts of zinc stearate, 3-9 parts of alumina, 8-12 parts of organic montmorillonite, 5-15 parts of bentonite, 4-8 parts of kaolin, 6-9 parts of diatomite and 4-9 parts of a silane coupling agent KH-550. The invention also provides a preparation method of the high-strength moisture-resistant oxygen-resistant heat-resistant high-density polyethylene film. The prepared high-density polyethylene film has high strength and excellent moisture-resistant, oxygen-resistant and heat resistant properties.
Owner:TIANCHANG CHENGTAI MEDICINAL MACHINERY EQUIP CO LTD
Polypropylene toughening modification process
The invention discloses a polypropylene toughening modification process and belongs to the technical field of chemical engineering. The polypropylene toughening modification process comprises a step (1) of polyolefin elastomer processing; a step (2) mixture preparation; and a step (3) of mixture extrusion molding. Under common matching action of modified polyolefin elastomer and various auxiliaries, physicochemical properties of polypropylene are effectively improved, shock strength of polypropylene can be remarkably improved, rigidity of polypropylene can be improved, tensile yield strength can be improved by 5% or above, the application range of polypropylene is greatly expanded, and polypropylene has very high economic value.
Owner:泾县金强塑胶材料有限公司
Microcapsule temperature-regulating antibacterial fabric
ActiveCN112760977AIncrease heat storageGood exothermic two-way temperature adjustment functionWeft knittingPhysical treatmentPolymer scienceCotton fibre
The invention discloses a microcapsule temperature-regulating antibacterial fabric. The fabric is formed by blending 96% by weight of mixed fibers and 4% by weight of polyurethane, wherein the mixed fibers comprise 30-50% by weight of energy-storing temperature-regulating cellulose fibers, 20-50% by weight of organic zinc antibacterial cotton fibers and 20-50% by weight of refined cotton fibers. The fabric has the following beneficial effects that the fabric has temperature regulating and long-acting antibacterial functions, and also has antiviral and mildew-proof effects.
Owner:ZHEJIANG SEMIR GARMENT CO LTD
Cross-linked biologically degradable carrier polymer, micelle and vesicle, and preparation method and application of the cross-linked biologically degradable carrier polymer, micelle and vesicle
ActiveCN102604065BLoad implementationOxygen-carrying functionPowder deliveryPharmaceutical non-active ingredientsPolyesterCross-link
Owner:CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
Waterproof breathable fabric and preparation method thereof
InactiveCN109944084ABreathableImprove breathabilityArtificial filaments from viscoseWoven fabricsPorosityFiber
The invention discloses a waterproof breathable fabric which comprises a comfortable inner layer and a functional film coating the surface of the comfortable inner layer. The thickness of the functional film is 60-80 micrometers; the waterproof breathable fabric is manufactured through the steps of 1 preparing the comfortable inner layer, 2 preparing a coating adopted by the functional film and 3uniformly coating the surface of the functional inner layer with the coating for the functional film. The fabric comprises the comfortable inner layer and the functional film coating the surface of the inner layer, the comfortable inner layer is formed by manufacturing suplon fiber and modified viscose fiber, and the comfortable inner layer has the breathable, wearing comfortable, anti-flaming andother performances; the functional film adopts polyether copolymer acetamide resin as a film matrix, modified nanometer silicon dioxide is added, the porosity of the film is increased on the basis ofkeeping the good hydrophobic performance, the breathability of the film is ensured, the purposes of breathability and waterproofing are perfectly achieved, and the fabric is the novel healthy and environment-friendly fabric.
Owner:广州市番禺区港棉制衣厂
SBS latex modified asphalt mixture and warm-mixing direct-feeding preparation process thereof
ActiveCN113336478AReduce the temperatureAchieve warm mixingClimate change adaptationPolymer chemistryAsphalt
The invention relates to the technical field of modified asphalt mixtures, in particular to an SBS latex modified asphalt mixture and a warm-mixing direct-feeding preparation process thereof, and the mixture comprises the following components in percentage by mass: 93-96% of primary aggregate, 3-7% of matrix asphalt, 0.3-1.2% of SBS latex and 0.03-0.12% of cross-linking agent. The cross-linking agent is formed by mixing elemental sulfur, a super vulcanization accelerator and organic peroxide. The method comprises the following process steps: firstly, heating aggregate to a certain temperature, putting the aggregate into a stirring cylinder, then spraying a mixed solution of SBS latex and a cross-linking agent into the stirring cylinder under the action of special conveying equipment while adding matrix asphalt, and discharging the product after fully stirring. The SBS latex is directly fed into a mixing cylinder, so that a common matrix asphalt mixture or a warm-mixed (hot-mixed) recycled asphalt mixture is prepared into the SBS modified asphalt mixture; the problems of aging, high pollution, gel, insufficient crosslinking, storage segregation, high-temperature heat preservation and the like of modified asphalt are solved.
Owner:安徽茂诚路桥工程有限公司
Secondarily doped graphene oxide/alkali-soluble chitosan-polyaniline-polyacrylamide composite conductive hydrogel prepared by one-pot method
The invention discloses a double-doped graphene oxide / alkali-soluble chitosan-polyaniline-polyacrylamide composite conductive hydrogel prepared by a one-pot method. The method firstly polymerizes aniline, phytic acid and ammonium persulfate to obtain polyaniline, and dissolves it for later use; then dissolves chitosan powder in a mixed aqueous solution of lithium hydroxide monohydrate, urea and graphene oxide to obtain graphene oxide / Alkali-soluble chitosan solution; adding polyaniline / N-methylpyrrolidone solution, acrylamide, N,N'-methylenebisacrylamide, and ammonium persulfate in turn, and polymerizing to obtain a composite hydrogel; transferring to phytic acid solution secondary doping is performed in the middle to obtain a high-strength graphene oxide / alkali-soluble chitosan-polyaniline-polyacrylamide composite conductive hydrogel material. The secondary doping process can improve the electrical conductivity of the hydrogel and adjust the mechanical properties of the gel. Due to its excellent mechanical properties and electrical conductivity, this material is expected to be used in electronic skin, flexible electronic devices and other fields.
Owner:ZHEJIANG UNIV
Preparation method of quantum dot film
PendingCN111378435AEasy to prepareExcellent electrical conductivityLuminescent compositionsQuantum dotPhotochemistry
The invention discloses a preparation method of a quantum dot film, which comprises the following steps: carrying out mixed reaction on organic amine and dithiol to generate a complexing product, andseparating from the complexing product to obtain a first complexing molecule in which a first sulfydryl group in the dithiol is combined with an amino group in the organic amine; carrying out ligand exchange on the first complexing molecule and a quantum dot surface ligand, so that the first complexing molecule is combined on the surface of the quantum dot through a second sulfydryl to obtain thequantum dot of which the surface is combined with the first complexing molecule; and depositing the quantum dots of which the surfaces are combined with the first complexing molecules on a substrate,and annealing to obtain the quantum dot film. The preparation method of the quantum dot film provided by the invention is simple and easy to realize, and the prepared quantum dot film can realize quantum dot crosslinking and has excellent electrical conductivity.
Owner:TCL CORPORATION
Preparation method of gradient cross-linked zwitterion-modified multilayer composite nanofiltration membrane and application of composite nanofiltration membrane
ActiveCN111135734BSimple and fast operationEasy to implementSemi-permeable membranesMembranesAcrylonitrileEngineering
The invention provides a preparation method of a gradient cross-linked zwitterion-modified multilayer composite nanofiltration membrane. The preparation method includes obtaining a hydrolyzed polyacrylonitrile ultrafiltration membrane with a polyacrylonitrile ultrafiltration membrane, and placing the ultrafiltration membrane in an ultrafiltration cup. The membrane is soaked with a mixed solution of glutaraldehyde and sodium lauryl sulfate, and an amphoteric polyethyleneimine solution in turn, and then the membrane is stirred and coated with the prepared tannic acid solution, and then the membrane is compressed by pressure filtration to obtain a gradient Cross-linked zwitterion-modified multilayer composite nanofiltration membranes. The present invention also provides the application of using the obtained composite nanofiltration membrane as a salt and dye separation membrane. The preparation method of the invention is simple and convenient, the membrane surface has a hydrophilic, loose and cross-linked separation layer, and the prepared membrane material is used for the separation of salt and dye, and has better water flux, dye retention rate and salt transmittance.
Owner:HEBEI UNIV OF TECH
Paint for vacuum film coating and its preparation method
InactiveCN100374614CRapid responseWell mixedVacuum evaporation coatingSputtering coatingPolymer scienceSolvent
The invention relates to a coating for vacuum deposition. It is made up of hydroxyl containing polybutadiene, polyisocyanate, sealer, and solvent. The hydroxyl containing polybutadiene is divided into two parts. The first part hydroxyl containing polybutadiene, NCO radical ralative OH radical, excess polyisocyanate are reacted to produce compound whose molecule chain is connected to NCO radical. Sealer is added to seal NCO radical. Finally the second part hydroxyl containing polybutadiene is added. The sealer can fully volatilize in roasting solidifying film process. The coating has good luster, hardness, adhesive force, and temperature resistance.
Owner:CNOOC CHANGZHOU PAINT & COATINGS IND RES INST
Blend, blend film and preparation method thereof, and applications of blend film in supercapacitors
InactiveCN110776642AAchieve cross-linkingImprove mechanical propertiesHybrid capacitor separatorsPolymer sciencePyrrolidinones
The invention discloses a blend, a blend film and a preparation method thereof, and applications of the blend film in supercapacitors, and particularly relates to a method for preparing an electrolytefilm by blending polyaryl ether sulfone as a matrix and polyvinylpyrrolidone. The preparation method comprises: polymerizing 2-methylhydroquinone and 4,4'-dichlorodiphenyl sulfone to obtain methyl polyaryl ether sulfone, brominating the methyl polyaryl ether sulfone to obtain polyaryl ether sulfone with a bromomethyl functional group, dissolving polyvinylpyrrolidone and the brominated polyaryl ether sulfone through DMSO, and forming a blend film through a casting method so as to form a two-material blended blend film. According to the invention, the prepared blend film has good mechanical property and good ionic conductivity, and can be used as an excellent electrolyte film to be applied to supercapacitors.
Owner:TIANJIN UNIV
A kind of phenolic-based renewable polymer material and its preparation method and regeneration application
ActiveCN111333807BMature technologyRich varietyPolyureas/polyurethane adhesivesPlastic recyclingPolymer scienceHydroxy group
The invention discloses a phenolic-based renewable polymer material and its preparation method and regeneration application, comprising the following steps: step 1, taking thermoplastic phenolic resin according to the molar ratio of phenolic hydroxyl group to isocyanate group (10-1):1 and aromatic polyisocyanate compound; step 2, dissolving the thermoplastic phenolic resin taken out in step 1 in an organic solvent, stirring, to obtain a phenolic resin solution; dissolving the aromatic polyisocyanate compound taken out in step 1 in an organic solvent to obtain polyphenolic resin Isocyanate compound solution; step 3, mixing the phenolic resin solution and the polyisocyanate compound solution, and treating the mixed solution to obtain a phenolic-based renewable polymer material. The polymer material obtained by the invention has excellent heat resistance and mechanical properties.
Owner:XI AN JIAOTONG UNIV
Modified keratin material as well as preparation method and application thereof
InactiveCN102120753BGood chemical stabilityIncrease the degree of cross-linkingPeptide preparation methodsHuman bodyPolymer science
The invention discloses a modified keratin material as well as a preparation method and application thereof. The modified keratin material provided by the invention has a structural formula shown in a formula (I) in the specification. The invention further provides the preparation method of the modified keratin material. The modified keratin material provided by the invention is degradable or degraded slowly after being implanted inside a human body, and the degradation degree of the modified keratin material can be regulated by controlling preparation process parameters. The prepared modified keratin material can be applied to hemostasis materials, hydrogel, wound dressing, and soft tissue fillers and the like, and can also be used as a support material for building a tissue engineered tissue.
Owner:JINAN UNIVERSITY
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com