19results about How to "Composite structure is stable" patented technology

The invention relates to the technical field of coating preparation, in particular to a highly oil-proof and waterproof fluorine-containing composition and application thereof in coatings, the fluorine-containing composition comprises the following chemical components by weight: 70-80 parts of a resin mixture, 2-5 parts of diisocyanate, 5-8 parts of a modified titanium dioxide filler and 10-15 parts of modified glass flakes, the resin mixture comprises fluorinated hydroxyl acrylic resin and urethane acrylate, and the mass ratio of the fluorinated hydroxyl acrylic resin to the urethane acrylate is (3-5): 1. The resin mixture, the modified titanium dioxide filler and the modified glass flakes form a stable composite structure through chemical bonding and physical effects, and finally the fluorine-containing composition shows excellent waterproof and oil-proof performance and good mechanical strength.

The invention belongs to the technical field of polymer composite materials, and particularly relates to a high-strength corrosion-resistant ABS composite flame-retardant material and a preparation method thereof. The ABS composite flame retardant material is prepared from the following raw materials in parts by weight: 60 to 75 parts of acrylonitrile-butadiene-styrene, 10 to 15 parts of glass fiber, 0.5 to 1 part of gamma-aminopropyltriethoxysilane, 8 to 12 parts of phosphorus-nitrogen flame retardant, 1 to 3 parts of nano aluminum oxide, 0.5 to 1 part of potassium perfluorooctane sulfonate, 1 to 3 parts of epoxy modified graphene oxide and 5 to 8 parts of modified nano montmorillonite. Through the synergistic effect of the epoxy silane modified graphene oxide and the long-chain alkylsilane modified nano montmorillonite, the mechanical property, the corrosion resistance and the flame retardant effect of an ABS matrix are remarkably enhanced. The modified material maintains toughness under high strength, effectively avoids embrittlement, and shows excellent impact resistance and environmental protection property.

The invention belongs to the technical field of concrete materials, and particularly relates to high-impermeability concrete suitable for a fabricated pavement and a preparation method of the high-impermeability concrete. The high-impermeability concrete suitable for the fabricated pavement is prepared from the following raw materials in parts by weight: 360-550 parts of a cementing material, 300-360 parts of fine aggregate, 1-3 parts of a water reducing agent, 1-3 parts of a waterproof agent, 2-5 parts of polyethylene fibers, 120-160 parts of water and an impermeability component, wherein the cementing material is prepared from 110 to 180 parts of limestone calcined clay cement, 30 to 70 parts of silica fume and 220 to 300 parts of fly ash. The invention aims to prepare the concrete with high impermeability through the combined action of the LC3 cement, the PE fiber, the waterproof agent, the silane modified polymer, the acrylic copolymer and the polyvinyl formal, the concrete is suitable for the fabricated pavement, and the porosity is reduced and the impermeability of a cement base is improved by preparing the LC3 cement; the PE fibers are adopted, so that high-strength and high-toughness performance is provided; the water reducing agent and the waterproof agent are added, so that the compactness of the concrete material is improved, and the impermeability is improved.

The present invention discloses a yeast peptide-hydroxytyrosol complex with high ROS capture ability and its preparation method and application. The yeast peptide-hydroxytyrosol complex contains hydroxytyrosol and yeast peptide, and the yeast peptide is a peptide with a molecular weight greater than or equal to 1kDa and less than 3kDa produced by hydrolysis of yeast protein; the preparation method of the yeast peptide-hydroxytyrosol complex with high ROS capture ability, the yeast peptide and hydroxytyrosol are dispersed in a low ionic strength PBS buffer respectively, and then the yeast peptide dispersion and the hydroxytyrosol dispersion are mixed; the application of the complex with high ROS capture ability in the manufacture of antioxidant drugs. The yeast peptide-hydroxytyrosol complex provided by the present invention has high ROS capture performance, has higher free radical and peroxide scavenging ability than using hydroxytyrosol or yeast peptide alone, and shows excellent application potential in the fields of food and medicine.

The invention belongs to the technical field of cosmetics, and particularly relates to a waterproof powder-blocking-free pressed powder and a preparation method thereof. The waterproof powder-blocking-free pressed powder is prepared from the following raw materials in parts by mass: 30 to 60 parts of powder, 2 to 5 parts of plant extract, 4 to 8 parts of locust bean gum silane prepolymer, 3 to 6 parts of film-forming agent, 2 to 5 parts of emollient and 2 to 4 parts of phytic acid, the powder is a mixture of silicon dioxide hybridized corn starch, aminated porous corn starch and stearic acid-tannic acid hybridized mica powder; the mass ratio of the silicon dioxide hybridized corn starch to the aminated porous corn starch to the stearic acid-tannic acid hybridized mica powder is 1: (10-25): (5-10). The waterproof powder-blocking-free pressed powder disclosed by the invention has excellent waterproofness, skin feeling and stability.

The present invention relates to the field of nanocrystalline soft magnetic technology, and specifically to a nanocrystalline soft magnetic composite device, process and multi-layer nanocrystalline soft magnetic structure, including an installation box, a mounting frame, an active unwinding mechanism and a transmission mechanism, a winding frame is rotatably installed on one side of the mounting frame, and a pressing mechanism is rotatably installed on both sides of the mounting frame, which is used to press the nanocrystalline soft magnetic layer, the double-sided adhesive layer, the PET protective film layer and the release film layer to form a multi-layer nanocrystalline soft magnetic structure. The present invention drives the winding frame, two sets of pressing mechanisms and the active unwinding mechanism to operate synchronously by opening the transmission mechanism to realize unwinding, pressing conveying and winding work, and the flow operation can improve the efficiency of the composite material of the device, and the active unwinding mechanism can actively unwind the coiled material, which can reduce the traction force of the nanocrystalline soft magnetic layer, the double-sided adhesive layer, the PET protective film layer and the release film layer during the feeding process, thereby ensuring the safety of the multi-layer nanocrystalline soft magnetic material during the transportation process.

The invention relates to a synthesis process of a color fixing agent for cotton, which comprises the following steps: uniformly stirring dimethyl diallyl ammonium chloride, pure water and sodium carbonate under the condition of nitrogen protection, heating to 56-59 DEG C, and adding ammonium persulfate and anhydrous sodium sulfite in batches; after the last batch of ammonium persulfate and anhydrous sodium sulfite are added, the temperature is increased to 75-78 DEG C, stirring and heat preservation reaction are performed, stirring and cooling are performed after the reaction is finished, an acidic material is added, uniform stirring is performed to obtain a color fixing agent precursor, and finally the color fixing agent precursor and a nano material are subjected to ultrasonic dispersion to obtain the color fixing agent for cotton. The nano material is a compound of nano silicon dioxide and nano aluminum oxide. The color fixing agent for cotton synthesized by the synthesis process of the color fixing agent for cotton not only can improve soaping fastness, rubbing fastness, washing fastness and perspiration fastness of cotton fabrics, but also does not affect the hand feeling of the cotton fabrics.

The invention relates to the technical field of nanocrystalline soft magnetism, in particular to a nanocrystalline soft magnetism composite device and process and a multilayer nanocrystalline soft magnetism structure.The nanocrystalline soft magnetism composite device comprises a mounting box, a mounting frame, an active unwinding mechanism and a transmission mechanism, a winding frame is rotationally mounted on one side of the interior of the mounting frame, and pressing mechanisms are rotationally mounted on the two sides of the interior of the mounting frame; and the laminating device is used for laminating the nanocrystalline soft magnetic layer, the double-sided adhesive layer, the PET protective film layer and the release film layer to form a multi-layer nanocrystalline soft magnetic structure. The transmission mechanism is started to drive the winding frame, the two pressing mechanisms and the active unwinding mechanism to operate synchronously, unwinding, pressing conveying and winding work is achieved, the composite material efficiency of the device can be improved through line production, coiled materials are actively unwound through the active unwinding mechanism, and the production efficiency is improved. The traction force borne by the nanocrystalline soft magnetic layer, the double-faced adhesive tape layer, the PET protective film layer and the release film layer in the conveying process can be reduced, and the safety of the multilayer nanocrystalline soft magnetic material in the conveying process is guaranteed.

The application discloses an in-situ growth MOG carbon nanofiber catalyst and a preparation method and application thereof, and comprises the following steps: stirring and mixing a nanofiber polymer and a solvent to obtain a uniform spinning liquid; performing electrostatic spinning to obtain a nanofiber membrane; adding a metal salt, a nitrogen-containing compound and resorcinol into water, slowly adding formaldehyde into the mixed solution to obtain an in-situ growth solution of a metal organic gel MOG; placing the nanofiber membrane into the in-situ growth solution to adjust a pH value, and performing in-situ growth by heating to obtain a MOG nanofiber membrane material; and performing high-temperature pyrolysis of the MOG nanofiber membrane material and urea in an inert atmosphere to dope nitrogen, thereby obtaining the MOG-CNF catalyst. The catalyst can effectively reduce overpotential of ORR and OER reactions, improve catalytic stability, and present stable and excellent dual-function electrocatalytic performance. Through a nano structure and a synergistic catalytic effect, the catalyst has a wide application prospect in the field of fuel cell energy storage and conversion.

The present application relates to the field of electrode foil manufacturing technology, and in particular to a Ti / Al composite electrode foil, a manufacturing method and an electrolytic capacitor. The manufacturing method of the Ti / Al composite electrode foil comprises the following steps: S1, surface pretreatment; S2, synthesis of composite material sheets; S3, plasma enhanced chemical vapor deposition of the composite material sheets; S4, immersing the pretreated aluminum foil obtained in S1 and the composite material sheet deposited with a titanium film obtained in S3 in a self-assembly agent solution with a concentration of 1-5wt%, and after immersion for 0.5-1h, drying at 80-100°C to obtain an impregnated aluminum foil and an impregnated composite material sheet; S5, composite bonding. The present application provides a Ti / Al composite electrode foil, a manufacturing method and an electrolytic capacitor to solve the problem in the related art that the titanium and aluminum interfaces in the Ti / Al composite electrode foil are poorly bonded, which affects the performance of the composite electrode foil.

The invention discloses a probe card substrate preparation method, which comprises: S1, placing spinel powder and calcium titanate powder in a high-energy ball mill, carrying out ball milling, and drying to obtain mixed powder; s2, pressing the mixed powder into a green body with a required shape, and sintering to form a composite green ceramic chip; s3, grinding, polishing and punching the composite green ceramic chip; and S4, coating photoresist on the punched composite green ceramic chip, and carrying out hot drying, exposure, development and cleaning to obtain the probe card substrate. By compounding spinel and calcium titanate, similar symmetry is achieved, atoms and ions at an interface can easily obtain a stable arrangement mode with the lowest energy, the stability of the composite interface is improved, the stability of a dielectric constant is kept, and dielectric loss is reduced; therefore, the prepared probe card substrate has high resistance to interference of electromagnetic waves, so that the prepared probe card substrate has excellent low dielectric loss and anti-electromagnetic interference capability.

The embodiment of the invention provides a preparation method of a high-corrosion-resistance nickel-plated aluminum flat wire, and the method comprises the steps: taking an aluminum flat wire as a base material, and obtaining the high-corrosion-resistance nickel-plated aluminum flat wire through surface oil removal, acid pickling, gradient zinc immersion treatment, continuous nickel electroplating, surface protection and drying, wherein the aluminum flat wire is a series 1 aluminum flat wire, and the mark of the aluminum flat wire is one of 1060, 1070, 1085, 1090, 1100, 1050, 1145 and 1235; wherein the gradient zinc immersion treatment comprises a primary zinc immersion process, a zinc removal process and a secondary zinc immersion process; the continuous electroplating nickel is dark nickel and comprises three layers of nickel, the thicknesses of the three layers of nickel are 1-3 microns, 1-4 microns and 1-4 microns respectively, and the total thickness of the three layers of nickel is 3-10 microns; the nickel-plated aluminum flat wire prepared by the method has good bending resistance and excellent corrosion resistance, and can realize better machinability and structural stability when being actually applied as a battery connecting piece material, so that the safety of a battery pack and a device is improved.

This invention relates to the technical field of solid waste resource utilization and environmental pollution control, and particularly to a method for co-preparing a biochar-steel slag composite adsorbent using steel slag and biomass. First, the raw steel slag is pretreated by coarse grinding, then mechanically activated and modified by high-energy ball milling to obtain finely ground steel slag powder. Next, the finely ground steel slag powder is mixed with a sodium bicarbonate solution and subjected to ultrasonic treatment in a water bath. Then, biochar bran is added in a specific ratio, and further ultrasonic treatment is performed for chemical composite modification. Finally, after solid-liquid separation, washing, and drying, a biochar-steel slag composite structure adsorbent is obtained. This invention, through a combined mechanical and chemical technique, significantly increases the specific surface area of ​​the material, exposes the internal active components, constructs a composite structure, and enriches the surface active functional groups, exhibiting excellent adsorption performance and rapid adsorption kinetics for heavy metal ions in wastewater.

The invention relates to the technical field of electrode foil manufacturing, in particular to a Ti / Al composite electrode foil, a manufacturing method and an electrolytic capacitor. The manufacturing method of the Ti / Al composite electrode foil comprises the following steps: S1, surface pretreatment; s2, composite material sheet synthesis; s3, carrying out plasma enhanced chemical vapor deposition on the composite material sheet; s4, the pretreated aluminum foil obtained in the step S1 and the composite material sheet deposited with the titanium film obtained in the step S3 are soaked in a self-assembly agent solution with the concentration being 1-5 wt% for 0.5-1 h and then dried at the temperature of 80-100 DEG C, and soaked aluminum foil and soaked composite material sheets are obtained; and S5, compounding and combining. According to the Ti / Al composite electrode foil, the manufacturing method and the electrolytic capacitor provided by the invention, the problem that the performance of the composite electrode foil is affected due to poor bonding of titanium and aluminum interfaces in the Ti / Al composite electrode foil in the prior art is solved.

This invention relates to the field of lithium battery technology, and more particularly to a silicon-carbon composite material based on vertical graphene, its preparation method, and a lithium-ion battery. The silicon-carbon composite material comprises, from the inside out, a nano-silicon core, metal nanoclusters, vertical graphene, and a carbon-coated outer layer; the metal is selected from at least one of Pt and Pd. In this invention, firstly, a carbon-coated outer layer covering the entire surface isolates the nano-silicon core from the electrolyte; secondly, vertical graphene is introduced between the carbon-coated outer layer and the nano-silicon core to enhance the material's conductivity and mechanical properties, ensuring that the connection between the silicon particles and the carbon layer remains intact during expansion and contraction; finally, metal nanoclusters are introduced as a "bridge" to achieve a strong chemical / electrical connection between silicon and vertical graphene. This structural design alleviates the volume expansion problem of silicon-based materials during charge and discharge, improving the initial charge-discharge efficiency and long-cycle performance.

The invention relates to the technical field of aluminum-based composite materials, in particular to a phase change energy storage-heat conduction synergistic aluminum-based composite material and a preparation method of the phase change energy storage-heat conduction synergistic aluminum-based composite material. 8-20 parts of a phase change energy storage material; 2-5 parts of a heat conduction reinforcing agent; 0.5 to 2 parts of a carbon nano tube; 0.2 to 1 part of an interface coupling agent; the carbon nanotubes and the aluminum nitride powder are introduced as heat-conducting fillers, so that a multi-stage heat-conducting network with the scale from nanometer to micrometer is constructed. The carbon nano tube forms a nano-scale heat conduction channel by virtue of the high length-diameter ratio and excellent axial heat conduction performance of the carbon nano tube. And the micron-sized aluminum nitride powder fills gaps among the carbon nanotubes, so that the continuity and the effectiveness of the heat-conducting network are further improved. According to the multi-scale structural design, the overall heat-conducting property of the composite material is remarkably improved, and meanwhile, the mechanical property of the material is accidentally enhanced.

The invention discloses a demulsifier for oilfield sewage treatment, and relates to the technical field of sewage treatment. The preparation method of the demulsifier comprises the following steps: S1: after monomer A, monomer B and a catalyst are mixed evenly, propylene oxide is added and mixed evenly, and the mixture is reacted for 2-3 hours at 120-130°C, and then aged for 0.5-1.5 hours to obtain a low molecular weight polyether; S2: ethylene oxide is added to the low molecular weight polyether of step S1, mixed evenly, heated to 130-140°C, reacted for 2-3 hours, aged for 1-2 hours, cooled, washed, and obtained a high molecular weight polyether; S3: the high molecular weight polyether, monomer C, initiator and solvent in S2 are mixed evenly, the temperature is increased to 55-80°C, the mixture is reacted for 2-4 hours, cooled, and obtained a demulsifier. The demulsifier prepared by the invention not only has a good demulsification effect, but also has high stability and durability.

The invention provides a preparation method of an adsorbent, which comprises the following steps: obtaining a first raw material which is ginkgo leaf; pretreating the first raw material to obtain a to-be-treated raw material; pyrolyzing the to-be-treated raw material to obtain a pyrolysis product; polishing the pyrolysis product to obtain a polished product; obtaining a second raw material, carrying out ultrasonic treatment on the second raw material, precipitating with an alkali solution, stirring to obtain a mixed solution, introducing the mixed solution and the polishing product into a hydrothermal reaction kettle, carrying out hydrothermal reaction to obtain a hydrothermal reaction product, and carrying out post-treatment on the hydrothermal reaction product to obtain an adsorbent; the problems that in the prior art, zirconium oxide is prone to loss in the SO4 < 2-> absorption process, and additional solid-liquid separation equipment needs to be added are solved.

The invention relates to the technical field of fuel cell gas diffusion layers, in particular to a gas diffusion layer, a preparation method thereof and a fuel cell. The preparation method comprises the following steps: impregnating a carbon fiber two-dimensional matrix material with reinforced resin, covering a release film, coating a first microporous layer slurry containing resin, graphite, acetylene black and an organic solvent to another release film, drying, laminating the two release films, carrying out hot pressing and curing, and carrying out carbonization and graphitization to obtain a composite material layer comprising a matrix layer and a first microporous layer; and dipping the composite material layer in a first hydrophobic agent, drying, coating the surface of the first microporous layer with second microporous layer slurry containing conductive carbon black, a dispersing agent, a second hydrophobic agent and water, and sintering to form a second microporous layer, thereby obtaining the gas diffusion layer. According to the method, the surface roughness of the gas diffusion layer can be reduced, the resin impregnation amount is reduced, a mass transfer channel in a material is enlarged, the brittleness of the gas diffusion layer is reduced, the strength of the gas diffusion layer is improved, energy consumption and production cost are reduced, and the second microporous layer is not prone to powder falling.