66 results about "Inorganic nanoparticles" patented technology

The application discloses an optoelectronic device, a preparation method thereof and a display device. The optoelectronic device comprises a first electrode, a photoelectric functional layer, a carrier functional layer and a second electrode which are stacked in sequence, wherein the carrier functional layer comprises inorganic nanoparticles, the inorganic nanoparticles have a sheet structure, and the average sheet diameter of the sheet structure is greater than or equal to 50 nm. The optoelectronic device has high light emitting efficiency.

The application discloses a direct yarn glass fiber sizing agent, which comprises effective components and water, and the effective components comprise a silane coupling agent, a film forming agent, a lubricant, a surfactant, a plasticizer, inorganic nanoparticles and a pH value regulator, and the solid content of the sizing agent is 6-9%; the solid mass percentage of each effective component in the total solid mass of the sizing agent is shown as follows: the silane coupling agent is 5-25%; the film forming agent is 48-75%; the lubricant is 8-20%; the surfactant is 1-6%; the plasticizer is 1-5%; the inorganic nanoparticles are 0.1-2%; and the pH value regulator is 1-8%; wherein the film forming agent is a mixture of a first film forming agent and a second film forming agent; the first film forming agent is a fluorine-containing epoxy emulsion with a molecular weight of 1500-2200; and the second film forming agent is an organic silicon modified polyurethane emulsion with a molecular weight of 1800-2700. The glass fiber yarn produced by using the sizing agent formula is soft, has good bundling property, less hairiness, good use smoothness, can be quickly soaked in resin such as an epoxy resin or a polyurethane resin, and is suitable for various resin systems.

This application discloses a composite material, its preparation method, a thin film, an optoelectronic device, and a display device, relating to the field of display technology. The preparation method of the composite material includes the following steps: providing inorganic nanoparticles and free radicals; mixing the inorganic nanoparticles and the free radicals to obtain the composite material. The composite material prepared by the method provided in this application exhibits high carrier mobility.

This invention relates to the field of graphene quantum dot film technology, and discloses a graphene quantum dot film, its preparation method, and its applications. The film is composed of the following components: modified graphene quantum dots, inorganic nanoparticles, a polymer matrix, a dispersant, a crosslinking agent, and additives. Through the optimized integration of raw material design and preparation process, the graphene quantum dot film of this invention achieves a synergistic improvement in both microstructure and macroscopic performance. From a macroscopic perspective, the film's transmittance reaches a maximum of 91.3% at 550 nm, and its light absorption coefficient reaches 4.0 × 10⁻⁶. 4 cm ‑1 The material exhibits a maximum tensile strength of 48.6 MPa and an elongation at break of 4.5%, and maintains a high performance retention rate even after humid heat and ultraviolet light aging. These superior properties are attributed to the synergistic effect of modified graphene quantum dots, modified inorganic nanoparticles, and optimized polymer matrices, as well as the regulation of processes such as segmented ultrasonication-intermittent stirring and gradient curing.

The present application aims to provide a kind of nanoparticles and nanoparticle film with high molecular shell, by preventing direct contact between nanoparticle core, thereby greatly inhibiting the formation of dimer or cluster, achieve brighter color development in target wavelength region.Inorganic nanoparticle core-polymer shell structure color material is used, which forms a polymer shell with a thickness of 20-200 nm around inorganic nanocrystals with a particle size of 40-300 nm and a refractive index of 3 or more.The polymer shell formed around the inorganic nanocrystals is composed of hydroxyl groups on the surface of the inorganic nanocrystals and functional groups modified on the surface, for example, replace the hydrophilic OH group (hydroxyl group) on the surface of silicon with a hydrophobic group, and modify the surface of silicon with N-isopropyl acrylamide (NIPAM) to coat.

The application provides a composite waterproof material and a preparation method and an integrated preparation device thereof, and the preparation method comprises the following steps: subjecting graphite and / or graphene to plasma treatment to obtain activated graphene; depositing inorganic nanoparticles on the surface of the activated graphene by using a plasma-enhanced atomic layer deposition method to obtain armored graphene; mixing the armored graphene with a molten asphalt matrix in an electric field, and then cooling to obtain the composite waterproof material. The application realizes in-situ exfoliation of graphite and / or graphene and induces epitaxial growth of inorganic nanoparticles on the surface of the graphene, forms armored graphene with a core-shell structure, and subsequently uses field guidance to enable the armored graphene to have strong interaction in the asphalt and self-assemble to form a three-dimensional interpenetrating hydrophobic and high-strength barrier network, thereby improving the waterproofness, interfacial bonding force, structure controllability and performance stability of the composite waterproof material.

This invention discloses a composite membrane for alkaline water electrolysis and its preparation method, relating to the field of alkaline water electrolysis for hydrogen production. The preparation method includes: roughening a polyphenylene sulfide (PPS) support network substrate using an adhesive-peel method; modifying the roughened PPS support network surface with polydopamine; dissolving a thermoplastic resin in an organic solvent and adding hydrophilic inorganic nanoparticles for uniform mixing to obtain a casting solution; coating the casting solution onto at least one surface of the modified PPS support network to form a liquid film; and placing the PPS support network coated with the liquid film in a non-solvent for phase inversion treatment to remove the organic solvent, thus obtaining the composite membrane. This composite membrane has controllable thickness, high airtightness, and low surface resistivity. Its support network, after hydrophilic modification, exhibits excellent alkali resistance and stability, significantly extending the electrolyzer's operating life, effectively isolating hydrogen and oxygen gases, and reducing electrolysis energy consumption, meeting the technical requirements for large-scale clean energy hydrogen production.

The application provides a preparation method of a double-layer hollow fiber membrane, which comprises adding inorganic nanoparticles and foaming particles in an outer layer spinning solution, adding nanosheets in an inner layer spinning solution, and then extruding simultaneously through wet spinning to obtain the double-layer hollow fiber membrane after coagulation. In the application, the inorganic nanoparticles are uniformly dispersed in the outer layer spinning solution to improve the wear resistance of the membrane, the foaming particles, especially the nanoparticles, are added to cooperate with an acidic gel bath to generate nanobubbles, so that the open porosity of the outer layer surface of the membrane is increased, the inner layer membrane is effectively shortened in the transmission path by inserting two-dimensional nanosheets, the mass transfer resistance is reduced, the flux of the double-layer hollow fiber membrane itself is ensured to be high, and the bonding force between the inner layer and the outer layer is improved. The double-layer hollow fiber membrane prepared by the application has the advantages of wear resistance, anti-pollution and difficulty in delamination, while the membrane flux is suitable, and the operation is simple and easy to scale up.

This invention relates to the field of phase change energy storage materials technology, specifically to a high-energy-storage composite phase change material for low-temperature applications and its preparation method. Addressing the problems of high supercooling, slow crystallization rate, and poor heat transfer performance in existing low-temperature phase change materials, this invention uses a glycylglycine aqueous system as the high-energy-storage matrix, introduces organic sugar alcohols as phase change temperature regulators, and constructs heterogeneous nucleation sites by adding inorganic nanoparticles. These nanoparticles significantly reduce the nucleation energy barrier of the system, effectively suppressing supercooling and improving the internal heat transfer efficiency of the material. The material obtained by this invention crystallizes rapidly and releases heat efficiently, making it widely applicable in cold chain logistics and food preservation.

This invention relates to the field of cement admixture technology, and discloses a low-adsorption, high-flowability gasification slag-based cement admixture and its preparation method. The admixture consists of a gasification slag matrix and an organic-inorganic composite coating layer attached to its surface and pores. The coating layer is composed of a cross-linked biopolysaccharide network and inorganic nanoparticles. In preparation, carbon is extracted from the gasification slag and dispersed in water. A composite system of biopolysaccharides and inorganic nanoparticles is added. The pH of the system is adjusted using an acid-base regulator to anchor the polysaccharide molecules to the surface of the gasification slag, promoting the cross-linking and deposition of nanoparticles within the polysaccharide network. The coated and modified gasification slag is obtained through solid-liquid separation and low-temperature drying. This method seals the visible pores and submicron-sized micropores of the gasification slag, blocks the channels for water-reducing agent molecules to enter the pores, reduces the ineffective consumption of water-reducing agent, and solves the problem of abrupt changes in the rheological properties and reduced fluidity of cement paste caused by ineffective adsorption.

This invention belongs to the field of inorganic nanoparticle technology, and discloses a silicon-phosphorus-containing inorganic nanoparticle, its preparation method, and its application. The silicon-phosphorus-containing inorganic nanoparticle is prepared from inorganic nanoparticles, a phosphorus-containing compound, and a silane coupling agent. The inorganic nanoparticles are selected from at least one of nano-ZrO2, nano-CaCO3, nano-SiO2, and nano-TiO2. The phosphorus-containing compound is selected from at least one of dimethyl phosphite, diethyl phosphite, and diphenyl phosphite. The silane coupling agent is selected from γ-glycidoxypropyltrimethoxysilane and / or γ-glycidoxypropyltriethoxysilane. The silicon-phosphorus-containing inorganic nanoparticles of this invention, due to surface modification, have significant steric hindrance, are not prone to aggregation, and can be well dispersed in a matrix. The inorganic nanoparticles contain silicon and phosphorus, and have a certain flame-retardant effect.

The invention discloses an intelligent response type marine antirust agent composition as well as a preparation method and application thereof. The intelligent response type marine antirust agent composition comprises a solvent and the following components in parts by mass: 6-8 parts of ion response microcapsules, 6-8 parts of photo-thermal response microcapsules, 6-9 parts of benzotriazole covalent grafting modified functionalized graphene oxide and 34-38 parts of film-forming resin, a capsule core of the ion response microcapsule is a corrosion inhibitor; the capsule wall is a polyelectrolyte composite membrane formed by self-assembling cationic polyelectrolyte and anionic polyelectrolyte layer by layer, and the outer surface of the capsule wall further comprises an inorganic nanoparticle layer formed by biomimetic mineralization; the cationic polyelectrolyte is poly (diallyldimethylammonium chloride), the anionic polyelectrolyte is sodium polystyrenesulfonate, and the inorganic nanoparticles are calcium carbonate; the photo-thermal response microcapsule comprises a capsule core which is a mixture of CsPbBr and n-octacosane, and a capsule wall which is polyurea formaldehyde.

The application provides a petroleum-based / biomass-based activated carbon adsorbent, a preparation method and application thereof. The activated carbon adsorbent takes residual oil and biomass with high carbon content as raw materials, realizes self-assembly of biomass macromolecules and inorganic nanoparticle polyacid at the same time, realizes regulation of the surface polarity and pore structure of the activated carbon, improves the adsorption capacity and desorption efficiency, and makes the specific surface area of the activated carbon adsorbent reach 800-2000 m 2 / g, has high adsorption capacity for C1-C6 hydrocarbons, and the desorption rate can reach more than 95% at normal temperature.

The application provides a cement reinforcing additive, which comprises an organic component and a modified inorganic component in a weight ratio of 1:(0.5-5); the organic component is an organic monomer containing an unsaturated double bond; the modified inorganic component is obtained by modifying an inorganic component capable of participating in a hydration product formation process by a polymerizable siloxane; the cement reinforcing additive can be applied in the preparation of a cement-based material; and finally obtained cement-based material is a cement-based material internally constructed with an organic-inorganic hybrid network, compared with a traditional method of directly adding a polymer emulsion or fibers, the amount of the organic component is small, and the working performance of the cement-based material is not negatively affected, and even the working performance is improved under some conditions. Compared with the traditional method of adding inorganic nanoparticles or hybrid nanoparticles, the method can more effectively play the role of the nanoparticles in the cement-based material, that is, as a part of a bridging, connecting the hydration product and the organic component, and effectively improving the flexural strength.

The application belongs to the technical field of display, and relates to a composite material comprising inorganic nanoparticles and a first organic polymer, wherein the first organic polymer is connected to the inorganic nanoparticles by a covalent bond. The application also relates to a light-emitting device and a display device. The technical scheme provided by the application can promote the full and uniform doping of the organic phase and the inorganic phase in the composite material, and improve the stability of the composite material.

The application provides a laser release layer material and a preparation method and application thereof. The laser release layer material comprises the following components in parts by weight: 10-30 parts of a thermoplastic resin, 0.5-4 parts of inorganic nanoparticles and 0.5-4 parts of a light response filler. The UV-vis transmittance of the light response filler is 0.001%-10%. The laser release layer material is prepared by designing the material of the laser release layer, further using the thermoplastic resin, cooperating with the inorganic nanoparticles and the light response filler with a specific UV absorption value. The laser release layer material has excellent performance. After the laser release layer prepared from the laser release layer material is debonded, the laser release layer material remaining on the wafer surface can be cleaned together with the adhesive layer, the production efficiency is accelerated, and the types of cleaning agents are reduced.

The application discloses a composite functional diaphragm for a zinc-bromine flow battery and a preparation method thereof, and belongs to the technical field of electrochemical energy storage. The diaphragm is based on a microporous membrane or an ion exchange membrane, and a first functional coating facing a positive electrode and a second functional coating facing a negative electrode are constructed on two surfaces of the diaphragm. The first functional coating is composed of a dense nanocomposite network formed by cross-linking quaternary ammonium chitosan and inorganic nanoparticles through a cross-linking agent. The second functional coating is composed of a porous zincophilic composite layer formed by cross-linking quaternary ammonium chitosan and micron-sized zinc powder through a cross-linking agent. By preparing a slurry and coating, a structure-stable asymmetric composite functional diaphragm is formed after solidification. The diaphragm can efficiently anchor polybromide on the positive electrode side to inhibit shuttling, and can induce uniform zinc deposition on the negative electrode side to inhibit dendrites, while ensuring excellent chemical and mechanical stability of the coating in a strong acid and high bromine environment, so that the overall performance of the zinc-bromine flow battery is synergistically and long-acting improved.

This invention discloses a core-shell based solvent-free nanofluid, its preparation, and its application in capturing greenhouse gases. The nanofluid is formed by dispersing inorganic nanoparticles in a co-flowing phase of a bifunctional coupling agent and a polymer. The inorganic nanoparticles are core-shell SiO2@LDH composite particles, consisting of LDH nanosheets loaded on the surface of SiO2 nanoparticles. The LDH is a layered double hydroxide. One end of the bifunctional coupling agent is hydrolyzed to form silanol groups, which undergo a condensation reaction with the hydroxyl groups on the surface of the LDH nanosheets to form stable chemical bonds. The other end of the coupling agent has an epoxy group that undergoes a ring-opening reaction with the amino groups in the polymer, achieving covalent grafting. This invention solves the problems of poor stability, easy aggregation, and unclear functional regulation and CO2 capture mechanisms in existing technologies. The resulting nanofluid exhibits high dispersion stability and excellent flowability, achieving the goal of efficient CO2 capture.

This invention belongs to the field of coating technology, specifically relating to a multifunctional coating for boards and its preparation method, including the following steps: (1) preparing molybdenum disulfide nanosheets modified with aminosilane coupling agent; (2) reacting 10-20wt% graphene oxide, inorganic nanoparticles, and modified molybdenum disulfide nanosheets for a period of time, then adding the remaining graphene oxide to continue the reaction, obtaining graphene oxide modified molybdenum disulfide nanosheets; (3) stirring and dispersing graphene oxide modified molybdenum disulfide nanosheets and aqueous polyurethane dispersion, then adding additives, and mixing evenly again to obtain a multifunctional coating for boards. This invention uses graphene oxide and inorganic nanoparticles to modify molybdenum disulfide. The modified molybdenum disulfide nanosheets can be uniformly dispersed in the coating, forming a highly cross-linked three-dimensional network structure, which significantly improves the anti-corrosion ability of the aqueous polyurethane coating.

The application relates to the technical field of polyethylene, and particularly discloses a benzotriazole derivative grafted nanoparticle additive, a preparation method thereof and a polyethylene composite material. The method comprises the following steps: preparing inorganic nanoparticles modified by a silane coupling agent; sequentially performing end group epoxidation and hydroxyl protection on a benzotriazole derivative to obtain a hydroxyl-protected epoxy benzotriazole derivative; and finally, reacting the inorganic nanoparticles modified by the silane coupling agent with the hydroxyl-protected epoxy benzotriazole derivative to obtain the benzotriazole derivative grafted nanoparticle additive. The additive can effectively solve the problem that the nanoparticles are prone to agglomeration in a polyethylene matrix, thereby causing high film haze; when the additive is used for preparing the polyethylene composite material, the haze can be greatly reduced while maintaining high light transmittance, and the tensile strength and processing stability of the material can be improved. The application has controllable process and low cost, is suitable for the production of polyethylene products such as high-transparency packaging films, and has wide application prospect.

The application discloses a kind of hierarchical pH response telopeptide oral microcapsules and preparation method, belong to biomedicine technical field.A kind of hierarchical pH response microcapsule, comprising: inner phase core, including drug-loaded inorganic nanoparticles and first alginate material;And, outer shell, including the second alginate material wrapped in the outside of the inner phase core;Wherein the drug-loaded inorganic nanoparticles are the complex of polypeptide drug and layered silicate material;The polypeptide drug is telopeptide;The layered silicate material is montmorillonite.Compared with prior art, the pH response microcapsule of the application has good pH response and intestinal targeting release capacity;In intestinal environment, through special ion exchange and pH change, not only can promote the rapid degradation of alginate hydrogel shell, but also can effectively trigger the release of telopeptide from montmorillonite carrier, so as to realize the efficient release and absorption of target site.

The application discloses an antistatic coating and a preparation method thereof, a diaphragm and a lithium ion battery, relates to the technical field of batteries, and the antistatic coating comprises the following raw material components in percentage by mass: 5-15% of a conductive polymer, 20-40% of inorganic nanoparticles, 3-10% of a binder, 0.5-2% of an antioxidant, 1-5% of a dispersing agent, and the rest is a solvent. The antistatic coating has good antistatic performance, can effectively prevent the safety hidden danger of the lithium ion battery caused by static accumulation during use, and improves the safety performance and service life of the battery.

This invention provides a particle-immobilized substrate that can be easily fabricated and in which inorganic nanoparticles exist in the nanometer-scale region. It also provides a method for easily manufacturing a substrate in which nanoparticles are arranged in the nanometer-scale region on a solid surface. [Solution] The particle-immobilizing substrate 1 comprises a substrate 2 and a plurality of inorganic nanoparticles 3 arranged on the substrate 2, wherein the plurality of inorganic nanoparticles 3 are arranged in contact with each other within an area on the substrate 2 with a width (D1) of 1 μm or less.

This application discloses a composite thin film, an optoelectronic device, and a display device, relating to the field of display technology. The composite thin film includes a first film layer and a second film layer stacked together. The first film layer is made of inorganic nanoparticles, and the second film layer is made of a titanate coupling agent containing sulfur and / or phosphorus. The composite thin film provided in this application exhibits high carrier mobility.

This invention discloses a composite coating, its preparation method, and its application. The composite coating is prepared from a composite solution containing the following components by mass percentage: lubricating component: 3%~8%; nano zinc oxide: 1%~3%; double-chain quaternary ammonium salt: 0.2%~1%; dispersing agent: 0.02%~0.08%; water: balance; wherein the lubricating component is polyvinylpyrrolidone and / or polyethylene glycol. This invention overcomes the bottleneck of "difficulty in achieving both lubrication and antibacterial properties" in the prior art. By cleverly utilizing the "dual function" of double-chain quaternary ammonium salt under specific processes, monodispersion of inorganic nanoparticles in a polymer matrix is ​​achieved, ultimately constructing a ternary composite coating with both extremely low friction coefficient, rapid bactericidal effect, and long-lasting antibacterial ability.

This invention discloses a photocurable composite solid electrolyte separator and its preparation method. The photocurable composite solid electrolyte separator includes a base film and a coating on the base film. The coating is obtained by applying a slurry. The raw materials for preparing the slurry include a modified solid electrolyte, a photoinitiator, a crosslinking agent, and a pore-forming agent. The modified solid electrolyte is a solid electrolyte treated with an inorganic nanoparticle precursor. The inorganic nanoparticle precursor is one or a mixture of aluminum isopropoxide, barium nitrate, tetrabutyl titanate, tetraethyl orthosilicate, tetrabutyl zirconate, and zinc acetate. The photoinitiator can initiate a crosslinking reaction under light irradiation to form a three-dimensional network structure, which significantly improves the heat resistance of the separator. The modified solid electrolyte can simultaneously improve the ionic conductivity and heat resistance of the separator, and effectively improve the problem of poor interfacial compatibility of solid electrolytes, ultimately achieving comprehensive optimization of the heat resistance, ion transport performance, and interfacial stability of the lithium battery separator.

The application discloses a preparation method of a pressure-resistant high-flux polyvinylidene fluoride nanofiltration membrane, which comprises the following steps: preparation of a polyvinylidene fluoride ultrafiltration base membrane, preparation of a polyvinylidene fluoride and hydrophilic inorganic nanoparticle blended membrane, in-situ growth of hydroxyl iron oxide nanoparticles on the surface of the blended membrane and the like. The method can solve the technical problems of conventional commercial nanofiltration membranes, such as low flux, poor pressure resistance and easy peeling of a separation layer, expand the application field of fluorine-containing high polymer materials, and overcome the problem of poor pressure resistance of polyvinylidene fluoride and other fluorine-containing materials used in nanofiltration base membranes. The existence of inorganic nanoparticles overcomes the problem of poor pressure resistance of the polyvinylidene fluoride base membrane; the existence of the intermediate layer of the hydroxyl iron oxide nanoparticles makes the membrane exhibit excellent permeability and ensures the stable adhesion of the separation layer obtained through interfacial polymerization on the surface of the polyvinylidene fluoride membrane. The application provides a novel and reliable method for the preparation of the pressure-resistant high-flux polyvinylidene fluoride base nanofiltration membrane and provides an effective method for the application of the pressure-resistant high-flux polyvinylidene fluoride base nanofiltration membrane to different nanofiltration processes.

This invention discloses a method for preparing a superhydrophobic and strongly oleophobic gel and its application on material surfaces, belonging to the field of hydrophobic and oleophobic technology. The invention aims to solve the problems of complex preparation processes, the need for additional inorganic nanoparticles or etching treatment, and poor coating stability in existing fluorine-free and plastic-free superhydrophobic and strongly oleophobic materials. The method involves mixing and stirring an aqueous solution of CMCS and a PDMS-OH acetone solution until homogeneous; adding sulfuric acid and heat-treating to form a three-dimensional network gel, thus completing the preparation of the superhydrophobic and strongly oleophobic gel. The gel of this invention is formed by the condensation and crosslinking of sulfuric acid and PDMS-OH, simultaneously encapsulating CMCS within it, successfully undergoing a crosslinking reaction to form sulfate ester bonds, resulting in good compatibility among the components. The raw materials used in this invention are all environmentally friendly, and the sulfuric acid leaves no residue after neutralization, meeting the safety requirements of food packaging. This invention has broad application prospects in food packaging, coatings, and other fields.

To provide a laminate having an inorganic nanoparticle-containing surface layer with a low-gloss appearance, and an inorganic nanoparticle-containing radiation-curable ink.SOLUTION: A laminate of an embodiment of the present disclosure includes a substrate and a surface layer containing a cured product of a radiation-curable ink. The radiation-curable ink contains inorganic nanoparticles, a polyether-modified polymer, and at least one selected from among radiation-curable polymerizable oligomers and radiation-curable polymerizable monomers. The surface layer has a 60° surface glossiness of 50.0 GU or less.SELECTED DRAWING: Figure 1

The present invention relates to a polymer electrolyte membrane, a method for manufacturing same, a membrane-electrode assembly comprising same, a water electrolysis cell, and a fuel cell, wherein: the polymer electrolyte membrane comprises a reaction product of a raw material mixture including a cation-conductive ion conductor, functionalized inorganic nanoparticles, and an amine compound; the cation conductor contains at least one first cation exchange group as a side chain; the functionalized inorganic nanoparticles are those whose surfaces are functionalized by including at least one second cation exchange group; and the amine compound contains at least two amino groups at a side chain, a terminal, or a combination thereof.