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42results about How to "The structure is easy to control" patented technology
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Template-based three-dimensional network carbon material/macromolecule functional composite and preparation method thereof
The invention discloses a template-based three-dimensional network carbon material / macromolecule functional composite and a preparation method thereof. According to the method, water-dispersed carbonmaterials, such as carbon black, carbon nanotubes and graphene oxides and hydroboron are taken as raw materials; trepanned sponge is taken as a three-dimensional template; the sponge with carbon material / hydroboron composites is obtained through an impregnation method, and is casted with or impregnated in different types of macromolecular materials after drying; finally, the three-dimensional network carbon material / macromolecule functional composite with the relative dielectric constant larger than 103 is obtained. The template-based three-dimensional network carbon material / macromolecule functional composite is widely applied to the fields such as dielectric energy storage materials, electromagnetic shielding, elastic conductors, piezoresistance materials and flexible electronic devices.The preparation method has the advantages of simple process, low cost, high efficiency and the like.
Owner:GUILIN UNIV OF ELECTRONIC TECH
Method for in-situ synthesis of carbon coated-hydrated V3O7 nanobelt and lithium ion battery
InactiveCN105742601AThe product has good crystallinityUniform shapeSecondary cellsPositive electrodesLithium electrodeCarbon coated
The invention relates to a method for in-situ synthesis of a carbon coated-hydrated V3O7 nanobelt and a lithium ion battery, and discloses a method for in-situ synthesis of the carbon coated-hydrated V3O7 nanobelt. The method comprises the following steps of respectively heating reaction raw materials to a certain temperature by a high-temperature hybrid hydrothermal method, mixing the reaction raw materials, cooling the reaction raw materials to a room temperature after completion of the hydrothermal reaction, and carrying out heat preservation and drying processing to obtain the in-situ carbon coated V3O7H2O (V3O7H2O@C) nanobelt. The in-situ synthesis of the carbon coated-hydrated V3O7H2O nanobelt with high crystallinity and high structural strength is achieved by the novel high-temperature hybrid hydrothermal method; the material obtained through preparation can be used for an electrode material of the lithium ion battery; and moreover, the carbon coated-hydrated V3O7H2O nanobelt is endowed with very excellent electrochemical performance and can be applied to the field of the lithium ion battery.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Preparation and application of magnetic nanoring microwave absorbing agent
ActiveCN105152226AUnique formation mechanismEasy to promote in industrial applicationsMaterial nanotechnologyInorganic material magnetismMicrowaveCarbonization
The invention discloses preparation and an application of a magnetic nanoring microwave absorbing agent, and particularly relates to a magnetic nanoring microwave absorbing agent with characteristics of good monodispersity and homogeneity, high magnetic responsiveness, excellent microwave absorbing performance, adjustable size and composition and the like as well as a preparation method and an application of the magnetic nanoring microwave absorbing agent. A magnetic nanoring adopts a polycrystalline structure formed by agglomeration of nanocrystallines and is oval, the length of a long axis is 28-175 nm, the length of a short axis is 18-130 nm, and the ring wall thickness is 7-35 nm; the magnetic nanoring comprises the component of Fe3O4, Fe3O4 / C or Fe / C with a spinel structure; ferric glycolate is taken as a precursor, and the magnetic nanoring is prepared by adopting an inert gas protective carbothermic reduction method-carbonization-solid-phase diffusion growth cooperation mechanism. The preparation and the application of the magnetic nanoring microwave absorbing agent are simple in process, low in cost and high in efficiency and facilitate industrial application and popularization, and the Fe3O4 and the carbon-magnetic nanoring have broad application prospects in the aspects of microwave absorption, a catalyst, an electrode material, a magnetic recording material, a biological sensor, separation or medical imaging.
Owner:ZHEJIANG NORMAL UNIVERSITY
Polypeptide molecule and application thereof
ActiveCN104327165APrevent bacterial infectionStrong antibacterial abilityImpression capsPeptidesAnti bacterialAmino acid
The invention discloses a polypeptide molecule including: (a) an amino sequence of the polypeptide molecule, wherein the amino sequence is represented as the SEQ ID No.1; and (b) a polypeptide molecule which is derived from (a) and has same biological functions of the polypeptide molecule (a), wherein the polypeptide molecule (b) is obtained since one or more amino acids are deleted, inserted or replaced in the polypeptide molecule limited in (a). A molecular weight of the polypeptide molecule is 2289.91 g / mol and an isoelectric point of the polypeptide molecule is 11.1. The polypeptide molecule can be applied for preparing materials which is anti-bacterial and can promote growth of osteoblast. The invention provides the polypeptide molecule which can be compounded with other compounds simply, can be applied in materials in various types and has effects of promoting growth of the osteoblast and being anti-bacterial. The polypeptide molecule is free of toxic and harmful effect on human body. The polypeptide molecule is simpler in synthetic method compared with a large-molecular polypeptide and can be industrially produced.
Owner:合肥瑞克生物科技有限公司
Preparation method of metal nano-network flexible panel for electronic information display
ActiveCN108154968AThe structure is easy to controlEasy to manufactureMetal/alloy conductorsCable/conductor manufactureSputteringEtching
The invention relates to a preparation method of a metal nano-network flexible panel for electronic information display. The method includes the following steps that a SiO2 thin film is prepared on asilicon slice as a sacrificial layer; a GZO thin film, an AZO thin film or a ZnO thin film are prepared on the sacrificial layer as a covering layer; diluted HNO3 is dropped on the covering layer, thecovering layer is corroded to obtain cracks between particles; then HF is dropped to corrode the SiO2 thin film under the cracks between the particles; an Ag metal thin film is produced by sputtering; the GZO thin film is removed by HCI immersion, HF immersion is carried out to remove the SiO2 thin film to obtain a metal Ag nano-network; the metal Ag nano-network is transferred to a PET flexibletransparent substrate coated with EVA optical cement to obtain a metal Ag nano-network transparent conductive flexible panel. The preparation method has the advantages that on the basis of preparing the large-particle GZO thin film, AZO thin film or ZnO thin film, combined with magnetron sputtering and wet etching, the metal nano-network transparent conductive flexible panel is obtained, wherein the metal nano-network structure is easy to regulate and the manufacture is simple and convenient.
Owner:(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
Processing method of metal nanonetwork flexible glass
ActiveCN108179392AThe structure is easy to controlEasy to manufactureVacuum evaporation coatingSputtering coatingSputteringNanonetwork
The invention relates to a processing method of metal nanonetwork flexible glass. The processing method comprises the following steps of preparing a SiO2 film on a silicon wafer as a sacrificial layer; preparing a GZO film, an AZO film or a ZnO film on the sacrificial layer as a cover layer; adding dropwise dilute HNO3 on the cover layer so as to erode the cover layer, so that intergranular cracksare obtained; then adding dropwise HF so as to erode the SiO2 film under the intergranular cracks; sputtering and growing an Ag metal film; soaking in HCl so as to remove the GZO film from the coverlayer; soaking in HF so as to remove the SiO2 film, so that a metal Ag nanonetwork is obtained; and transferring to a PET flexible transparent substrate coated with EVA optical cement, so that the metal nanonetwork transparent conductive glass is obtained. The processing method has the advantages that on the basis of the large-particle GZO film, the AZO film or the ZnO film which is developed andobtained, magnetron sputtering and wet etching are combined, so that the metal nanonetwork transparent conductive glass which has the advantages of easiness in adjusting and controlling the metal nanonetwork structure and simplicity and convenience in manufacturing is obtained.
Owner:(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
Chloroquinoxaline compound
InactiveCN102827088AThe structure is easy to controlLower HOMO levelOrganic chemistrySolid-state devicesQuinoxalineCompound a
The invention belongs to the organic chemical field, and discloses a chloroquinoxaline compound, a structural general formula of the conjugated polymer is shown as I. The compound introduces a fluorine atom with a strong electrosorption characteristic on quinoxaline, thereby the HOMO energy level of the material can be effectively reduced, and the open-circuit voltage of a polymer photovoltaic cell can be enhanced. By using cyclic voltammetry determination of the HOMO energy of the compound, compared with a non-chloroquinoxaline derivative, the HOMO energy level of a single fluoropolymer is lower by 0.02-0.15eV than that of the non-chloroquinoxaline, and the HOMO energy level of the double fluoro polymer is lower by 0.05-0.3eV than that of the non-chloroquinoxaline. The compound can be taken as an intermediate of a polymer photovoltaic material for preparing the polymer photoactivity material with excellent performance. By using cyclic voltammetry determination of the HOMO energy of the compound A-I, compared with the non-chloroquinoxaline derivative, the HOMO energy level of the single fluoropolymer is lower by 0.02-0.15eV than that of the non-chloroquinoxaline, and the HOMO energy level of the double fluoro polymer is lower by 0.05-0.3eV than that of the non-chloroquinoxaline.
Owner:XIAN MODERN CHEM RES INST
Double-response drug release MOFs@IBU nanofiber transdermal slow-release material as well as preparation method and application thereof
ActiveCN112675154AIncrease loadEasy to prepareOrganic active ingredientsAntipyreticBenzoic acidAcyl group
The invention provides a double-response drug release MOFs@IBU nanofiber transdermal slow-release material as well as a preparation method and application thereof. The preparation method of the slow-release material comprises the following steps of dissolving ligand 4, 4'-((4-(4H-1, 2, 4-triazole-4-yl) benzene) azodiacyl) dibenzoic acid, zinc nitrate and ibuprofen in a mixed solvent of water and N, N-dimethylformamide, adding diethanolamine (DEA), uniformly mixing, standing at room temperature to react for 20-30 hours, centrifuging, washing and drying to obtain MOFs@IBU; dissolving polyacrylonitrile in N, N-dimethylformamide (DMF), adding MOFs@IBU, and uniformly mixing and dispersing to obtain a spinning solution; and then carrying out electrostatic spinning and drying. The nanofiber membrane obtained by the invention has pH and temperature dual-response drug release capability; and the preparation process is simple, the energy consumption is low, the structure of the drug loading system is easy to control, and the cost is relatively low.
Owner:SHANDONG FIRST MEDICAL UNIV & SHANDONG ACADEMY OF MEDICAL SCI
Preparation method and system of membrane material
ActiveCN112691558AAchieving controllable equipmentThickness is easy to adjustSemi-permeable membranesThin membraneEngineering
The invention discloses a preparation method and system of a membrane material. The preparation method of the membrane material comprises the steps of rotating a rotating body, enabling a selected area on the surface of the rotating body to be in contact with a film-forming solution when the selected area rotates to a first position, enabling the film-forming solution to be attached to the selected area to form a liquid membrane, and enabling the liquid membrane to form a membrane material as it continues to rotate with the selected area from the first position to the second position. The controllable preparation of various membrane materials can be realized, the thickness, the area, the components, the structure and the like of the membrane materials are easy to regulate and control, the membrane preparation efficiency is high, and the obtained membrane material is good in quality, low in cost and suitable for the requirement of large-scale production, and particularly has important application value in the field of preparation of high-quality, high-performance or special-performance membranes.
Owner:江西省纳米技术研究院
Novel intestinal mucosa anti-oxidation active peptide and preparation method thereof
PendingCN110845578AImproves antioxidant activityPolyhydrophobic amino acidPeptide preparation methodsFermentationEconomic benefitsOrganic chemistry
The invention relates to the technical field of biology and particularly discloses a novel intestinal mucosa anti-oxidation active peptide and a preparation method thereof. Amino acid sequences of theanti-oxidation active peptide are shown as Asp-Gly-Leu-Lys-His-Leu-Asp-Asn-Leu-Lys and Asn-Asp-Trp-Glu-Asp-His-Leu-Ala-Val-Lys. The anti-oxidation active peptide is derived from intestinal mucosa protein. The peptide has more hydrophobic amino acids and strong anti-oxidation activity and is strong in DPPH free radical scavenging action and high in reducing power. The preparation method of the peptide has advantages of simplicity, easiness in large-scale production and the like. The novel intestinal mucosa anti-oxidation active peptide and the preparation method thereof have significant socialbenefits, economical benefits or ecological benefits in increasing of industrial added values of natural casings, abatement of environmental pollution and promotion of comprehensive utilization of casing processing byproduct resources.
Owner:YANGZHOU UNIV
Cobalt thiocyanate hydrogen bond type ferroelectric material, and preparation method and application thereof
ActiveCN113072558AThe structure is easy to controlGood electrical propertiesOrganic chemistry methodsPotassium thiocyanatePotassium cyanide
The invention discloses a cobalt thiocyanate hydrogen bond type ferroelectric material, and a preparation method and application thereof. The preparation method comprises the following steps: adding dabco into methanol for fully dissolving, dropwise adding hydrochloric acid with the mass concentration of 36-37%, and fully stirring to obtain a solvent 1; adding cobalt chloride into water, and fully dissolving to obtain a solvent 2; adding potassium thiocyanate into water, and fully dissolving to obtain a solvent 3; uniformly mixing the solvent 2 and the solvent 3, adding the mixture into the solvent 1, and sufficiently mixing uniformly to obtain a mixed solvent, wherein the molar ratio of cobalt chloride to potassium thiocyanate to dabco in the mixed solvent is (1-2): (5-6): (1-2); and storing the mixed solvent in a clean environment for 6-8 days, wherein the precipitated dark blue blocky crystal is the cobalt thiocyanate hydrogen bond type ferroelectric material. The material structure is easy to regulate and control, has excellent electrical properties, and can be widely applied to the fields of ferroelectric memories, infrared detectors and the like; in addition, the preparation method disclosed by the invention has the advantages of low energy consumption, low cost and easiness in production, and is environment-friendly.
Owner:XINJIANG AGRI UNIV
Near-infrared light stimulation response type functional macromolecule, intelligent nanometer material and preparation method of intelligent nanometer material
PendingCN111848596AStrong absorption capacityPrecise regulation of hydrophilicity and hydrophobicitySteroidsBiomedicinePhotothermal therapy
The invention relates to a near-infrared light stimulation response type functional macromolecule, an intelligent nanometer material and a preparation method of the intelligent nanometer material, belonging to a photo-thermal macromolecule, two synthesis methods and the preparation method of the nanometer material taking the photo-thermal macromolecule as a raw material. A piperidine-thiophene-croconic acid-thiophene-piperidine conjugated element is used as a main component, and a plurality of groups are used for modifying the photo-thermal macromolecule, so the overall properties of the macromolecule are regulated and controlled. A solvent replacement method and a self-nucleation method are adopted, and different solvent systems and temperatures are controlled, so various novel photo-thermal nanometer materials with various morphologies such as a spherical shape, a fibrous shape and a sheet shape are prepared. Structural parameters such as morphology, size and the like of the nanometer material can be effectively regulated and controlled through different photo-thermal macromolecule substituent elements, and the nanometer material has good biocompatibility and excellent photo-thermal performance. In the future, the nanometer material is expected to be applied to photothermal therapy, photodynamic therapy, photoacoustic imaging and the like in the field of biomedicine, and haspotential application value.
Owner:SHANGHAI UNIV
acfs@tic/tio 2 Composite materials and their preparation methods and applications
ActiveCN110975904BInhibit sheddingEvenly distributedPhysical/chemical process catalystsCarbon fibersPorous carbon
The invention discloses a CFs@TiC / TiO 2 Composite material and its preparation method and application, said CFs@TiC / TiO 2 The preparation process of composite materials is as follows: (1) carbon fiber (CFs) is used as carbon raw material, and carbon fiber is degummed by Soxhlet extraction method to obtain single dispersed fiber; (2) titanium hydride is used as titanium molten salt method in Porous titanium carbide grown on the surface of carbon fiber; (3) using potassium hydroxide hydrothermal method to partially convert the titanium carbide grown on the surface of carbon fiber into potassium titanate nanosheets; (4) after acid treatment and heat treatment, CFs@TiC / TiO 2 Composite functional materials. The invention has simple process, easy adjustment and control of material structure, excellent performance of the prepared composite material, and is convenient for industrial production and engineering application.
Owner:CENT SOUTH UNIV
Small molecule peptides and their uses
ActiveCN107892712BGood antiparasitic activityHas antimicrobial activityPeptide/protein ingredientsDepsipeptidesAntiparasiticAntibiosis
The invention discloses a micromolecular polypeptide. The amino acid sequence of the micromolecular polypeptide is represented by SEQ ID No.1. The invention also provides applications of the micromolecular polypeptide. The micromolecular polypeptide has a good activity on resisting parasites, at the same time has an antibacterial activity, has the advantages of strong stability and easily adjustable structure, and has a prominent application potential.
Owner:安杰利(重庆)生物科技有限公司
CFs@TiC/TiO2 composite material as well as preparation method and application thereof
ActiveCN110975904AInhibit sheddingEvenly distributedPhysical/chemical process catalystsCarbon fibersPorous carbon
The invention discloses a CFs@ TiC / TiO2 composite material as well as a preparation method and application thereof, and the preparation process of the CFs @ TiC / TiO2 composite material comprises the following steps: (1) taking carbon fibers (CFs) as a carbon raw material, and carrying out degumming treatment on the carbon fibers by utilizing a Soxhlet extraction method to obtain single dispersed fibers; (2) growing porous titanium carbide on the surface of the carbon fibers by using titanium hydride as a titanium molten salt method; (3) converting a titanium carbide part growing on the surfaceof the carbon fibers into a potassium titanate nanosheet by using a potassium hydroxide hydrothermal method; and (4) carrying out acid treatment and heat treatment to obtain the CFs@ TiC / TiO2 composite functional material. The preparation method is simple in process, the material structure is easy to regulate and control, and the prepared composite material is excellent in performance and convenient for industrial production and engineering application.
Owner:CENT SOUTH UNIV
A kind of cobalt thiocyanate hydrogen bond type ferroelectric material and its preparation method and application
ActiveCN113072558BThe structure is easy to controlGood electrical propertiesOrganic chemistry methodsBulk crystalPotassium thiocyanate
The invention discloses a thiocyanate cobalt hydrogen bond type ferroelectric material as well as a preparation method and application thereof. In the present invention, dabco is fully dissolved in methanol, then hydrochloric acid with a mass concentration of 36% to 37% is added dropwise and fully stirred to obtain solvent 1; cobalt chloride is added to water and fully dissolved to obtain solvent 2; potassium thiocyanate Add it into water to fully dissolve to obtain solvent 3; mix solvent 2 and solvent 3 and add it to solvent 1, and mix well to obtain a mixed solvent. The molar ratio of cobalt chloride, potassium thiocyanate, and dabco in the mixed solvent is 1 ~2:5~6:1~2; the mixed solvent is placed in a clean environment for 6~8 days, and the precipitated dark blue massive crystals are thiocyanate cobalt hydrogen bond type ferroelectric materials. The material structure of the present invention is easy to control, has excellent electrical properties, and can be widely used in fields such as ferroelectric memory and infrared detectors; in addition, the preparation method of the present invention has the advantages of less energy consumption, low cost, and easy production, and is environmentally friendly .
Owner:XINJIANG AGRI UNIV
Fluoroquinoxaline compounds
InactiveCN102827088BThe structure is easy to controlLower HOMO levelOrganic chemistrySolid-state devicesQuinoxalineCompound a
The invention belongs to the organic chemical field, and discloses a chloroquinoxaline compound, a structural general formula of the conjugated polymer is shown as I. The compound introduces a fluorine atom with a strong electrosorption characteristic on quinoxaline, thereby the HOMO energy level of the material can be effectively reduced, and the open-circuit voltage of a polymer photovoltaic cell can be enhanced. By using cyclic voltammetry determination of the HOMO energy of the compound, compared with a non-chloroquinoxaline derivative, the HOMO energy level of a single fluoropolymer is lower by 0.02-0.15eV than that of the non-chloroquinoxaline, and the HOMO energy level of the double fluoro polymer is lower by 0.05-0.3eV than that of the non-chloroquinoxaline. The compound can be taken as an intermediate of a polymer photovoltaic material for preparing the polymer photoactivity material with excellent performance. By using cyclic voltammetry determination of the HOMO energy of the compound A-I, compared with the non-chloroquinoxaline derivative, the HOMO energy level of the single fluoropolymer is lower by 0.02-0.15eV than that of the non-chloroquinoxaline, and the HOMO energy level of the double fluoro polymer is lower by 0.05-0.3eV than that of the non-chloroquinoxaline.
Owner:XIAN MODERN CHEM RES INST
Micromolecule polypeptide and application thereof
ActiveCN107987133AGood antiparasitic activityHas antimicrobial activityPeptide/protein ingredientsDepsipeptidesAntibacterial activityAmino acid
The invention discloses micromolecule polypeptide, wherein an amino acid sequence of the micromolecule polypeptide is shown by SEQ ID No.1. The invention also provides application of the micromoleculepolypeptide. The polypeptide disclosed by the invention has the advantages of anti-parasitic activity, antibacterial activity, strong stability, easy-control structure and obvious application potential.
Owner:安杰利(重庆)生物科技有限公司
Method for preparing porous carbon material for supercapacitor by activating rice husk with ionic liquid
The invention discloses a method for preparing a porous carbon material for a supercapacitor by activating rice husks through ionic liquid, belonging to the technical field of preparing a carbon material. The method comprises the following steps: by taking deashed rice husks as a carbon source, and 1-butyl-3-methylimidazole hexafluorophosphate ionic liquid as a template and activating agent, dissolving and dispersing the ionic liquid through absolute ethyl alcohol, then adding into the deashed rice husks, and then evaporating to completely remove absolute ethyl alcohol; transferring the obtained ionic liquid and rice husk mixture into a corundum porcelain boat, placing into a box type oven and heating under nitrogen atmosphere, to obtain the porous carbon material for the supercapacitor. For the porous carbon material, the specific surface area ranges from 697 to 1438m<2> / g, the total pore volume ranges from 0.51 to 0.75cm<3> / g, and the average pore size ranges from 1.99 to 2.95nm. The method has the advantages of being simple in preparation technology, easy for regulation and control of the product structure, capable of realizing the high added value of biomass, and the like.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
A kind of nanoporous polymer foam and preparation method thereof
ActiveCN108976684BRaw materials are cheap and easy to getThe structure is easy to controlPolymer scienceMicrosphere
The invention relates to a nanopore polymer foam and a preparation method thereof, and belongs to the technical field of preparation of polymer foam. The nanopore polymer foam is characterized in thatthe mutual dissolving property of PVDF (polyvinylidene fluoride) and PMMA (polymethyl methacrylate) is utilized, and the PVDF and the PMMA can reach the uniform dispersing at molecule size in a mixture; by leading fluid with certain pressure, the uniformly dispersed PVDF microspheres in the mixture are induced to form crystal grains with certain size, so as to provide a nucleation point with veryhigh concentration for subsequent foaming, and greatly improve the foam pore density; by mixing with the PVDF, the glass-transition temperature of a foaming substrate is reduced, the rheological property of the substrate is improved, the expanding time of the foam pores is effectively prolonged, and the foaming rate of the polymer foam is greatly improved; the large-rate nanopore polymer foam canbe prepared at high efficiency, and the foam pore structure can be effectively regulated and controlled; the technology is simple, the preparation process is green and pollution-free, and the cost islow.
Owner:SHANDONG UNIV
Small molecule peptides and their uses
InactiveCN107936093BStrong α-glucosidase inhibitory activityHas antioxidant activityPeptide/protein ingredientsMetabolism disorderAlgluceraseOrganic chemistry
The invention discloses a micro-molecule polypeptide, and the amino acid sequence of the micro-molecule polypeptide is as shown in the SEQ ID NO.1. The invention further provides application of the micro-molecule polypeptide. The polypeptide is excellent in alpha-glucosidase inhibitory activity and antioxidant activity and strong in stability, and has a remarkable application potential, and the structure of the polypeptide is easy to regulate and control.
Owner:田丽
Preparation and Application of Magnetic Nanoring Microwave Absorber
ActiveCN105152226BUnique formation mechanismEasy to promote in industrial applicationsMaterial nanotechnologyInorganic material magnetismCarbonizationMedical imaging
Owner:ZHEJIANG NORMAL UNIVERSITY
Small molecule peptides and their uses
ActiveCN108059656BStrong α-glucosidase inhibitory activityHas antioxidant activityPeptide/protein ingredientsMetabolism disorderAlgluceraseOrganic chemistry
Owner:玛士撒拉(上海)生物科技有限公司
A dual-response drug-releasing mofs@ibu nanofiber transdermal sustained-release material and its preparation method and application
ActiveCN112675154BIncrease loadEasy to prepareOrganic active ingredientsAntipyreticBenzoic acidDrug release
The invention provides a MOFs@IBU nanofiber transdermal sustained-release material with dual-response drug release and a preparation method and application thereof. The preparation method of the sustained-release material comprises the steps of: mixing ligand 4, 4'-((4-(4H-1,2,4-triazol-4-yl)benzene)azodioyl)dibenzoic acid, Zinc nitrate and ibuprofen were dissolved in a mixed solvent of water and N,N-dimethylformamide, and diethanolamine (DEA) was added to mix them evenly. The reaction was allowed to stand at room temperature for 20-30h, and the MOFs were obtained by centrifugation, washing and drying. @IBU; Dissolve polyacrylonitrile in N,N-dimethylformamide (DMF), add MOFs@IBU, mix and disperse uniformly to obtain spinning solution; then electrospin and dry to obtain. The nanofiber membrane obtained by the invention has the drug release capability of dual response of pH and temperature; the preparation process is simple, the energy consumption is low, the structure of the drug-carrying system is easy to control, and the cost is low.
Owner:SHANDONG FIRST MEDICAL UNIV & SHANDONG ACADEMY OF MEDICAL SCI
Preparation method of titanium dioxide and titanium carbide loaded carbon fiber composite catalytic functional material
ActiveCN111036254AEasy to separate and handleEasy to separatePhysical/chemical process catalystsFiberPorous carbon
The invention relates to a preparation method of a titanium dioxide and titanium carbide loaded carbon fiber composite catalytic functional material. The preparation method comprises the following steps: (1) with carbon fibers (CFs) as a carbon raw material, carrying out degumming treatment on the carbon fibers by using a Soxhlet extraction method to obtain single dispersed fibers; (2) with titanium hydride as a titanium raw material, allowing porous titanium carbide to grow on the surface of the carbon fibers through a molten salt method; (3) partially converting titanium carbide grown on thesurface of the carbon fibers into sodium titanate by using a sodium hydroxide hydrothermal method; and (4) carrying out acid treatment and heat treatment to obtain the CFs-coated TiC / TiO2 composite catalytic functional material. The preparation method is simple in process, a material structure is easy to control, and the prepared composite material is excellent in performance and convenient for industrial production and application.
Owner:CENT SOUTH UNIV
A kind of intercalation material for enhancing the interlayer performance of continuous fiber resin-based composite board and its preparation method
The invention discloses an intercalation material for enhancing the interlayer performance of a continuous fiber resin-based composite board and a preparation method thereof. The intercalation material mainly utilizes the synergistic effect of polymer fiber non-woven fabrics and acicular iron oxide particles, which can effectively improve the interlayer toughness of continuous fiber resin-based composite sheets, and orient the acicular iron oxide particles with the aid of a magnetic field. arrangement to obtain a more efficient toughening effect. The specific method is: first, disperse and dissolve different raw materials such as magnetic acicular iron oxide particles, auxiliary dispersing agent, coupling agent, etc. in a suitable solvent according to a certain proportion, and then spray or dip them on the polymer fibers of a specific material. On the non-woven fabric, the magnetic needle-shaped nano-iron oxide particles are then aligned along the direction perpendicular to the surface of the polymer fiber non-woven fabric under the assistance of a magnetic field, and the final product is obtained after drying. The preparation method of the intercalation material has the characteristics of simple process, low cost, safety and environmental protection, and high production efficiency.
Owner:GUILIN UNIV OF ELECTRONIC TECH
A kind of polyalkylsiloxane-polyolefin block copolymer and its preparation method and application
The invention discloses a polyalkysiloxane-polyolefin segmented copolymer as well as a preparation method and an application thereof. The structure of the copolymer is shown in formula (I), wherein R is methyl or ethyl or C3-C8 alkyl or phenyl, k is an integer from 5 to 300, and m is an integer from 1 to 30, n is an integer from 2 to 10, and the average number of q is 5-30. The polysiloxane-polyethylene segmented copolymer is used as a polyolefin processing modifier and the flowing property and mechanical property of the product can be effectively improved.
Owner:黄山永创科技包装有限公司
A method for preparing a metal nano-network flexible panel for electronic information display
ActiveCN108154968BThe structure is easy to controlEasy to manufactureMetal/alloy conductorsCable/conductor manufactureSputteringEtching
The invention relates to a preparation method of a metal nano-network flexible panel for electronic information display. The method includes the following steps that a SiO2 thin film is prepared on asilicon slice as a sacrificial layer; a GZO thin film, an AZO thin film or a ZnO thin film are prepared on the sacrificial layer as a covering layer; diluted HNO3 is dropped on the covering layer, thecovering layer is corroded to obtain cracks between particles; then HF is dropped to corrode the SiO2 thin film under the cracks between the particles; an Ag metal thin film is produced by sputtering; the GZO thin film is removed by HCI immersion, HF immersion is carried out to remove the SiO2 thin film to obtain a metal Ag nano-network; the metal Ag nano-network is transferred to a PET flexibletransparent substrate coated with EVA optical cement to obtain a metal Ag nano-network transparent conductive flexible panel. The preparation method has the advantages that on the basis of preparing the large-particle GZO thin film, AZO thin film or ZnO thin film, combined with magnetron sputtering and wet etching, the metal nano-network transparent conductive flexible panel is obtained, wherein the metal nano-network structure is easy to regulate and the manufacture is simple and convenient.
Owner:(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
Preparation method of three-dimensional graphene-based foam material
ActiveCN103332686BEnables macro-preparationThe structure is easy to controlGraphenePolymer scienceHeat conducting
The invention relates to a preparation method of a three-dimensional graphene-based foam material, which comprises the steps of stripping graphite to obtain graphite oxide with an improved Hummers method, taking graphite oxide with dispersed furfuryl alcohol as a carbon source and a high polymer foam material as a template, obtaining a high polymer foam material obtaining graphite oxide with a simple impregnation method, and obtaining the three-dimensional graphene-based foam material by heat treatment of high polymer foam under an anaerobic condition. The three-dimensional graphene-based foam material prepared by the method is provided with a graphene-based foam macro body in a three-dimensional continuous structure; the method is easy and simple to operate, and high in productivity; a foam structure is easy to adjust and control; the prepared three-dimensional graphene-based foam material has the advantages of high electroconductivity, large specific surface area, lipophilicity, hydrophobicity and the like; and a foundation is laid for the application of the three-dimensional graphene-based foam material in the fields of heat-conducting composites, catalytical materials, energy storage materials, phase separation materials, adsorbing materials and the like.
Owner:XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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