476 results about "Inorganic nanoparticles" patented technology

The invention belongs to the technical field of aerogel materials, and particularly relates to antistatic aerogel for 3D printing as well as a preparation method and application of the antistatic aerogel. The preparation method comprises the following steps: (1) dispersing inorganic nanoparticles modified by a silane coupling agent containing epoxy groups and an aniline monomer in an acidic solvent to obtain a monomer mixed solution; (2) stirring and dissolving polyamide in the monomer mixed solution; (3) initiating a reaction to obtain a polyaniline modified polyamide solution; and (4) freeze-drying to obtain the antistatic aerogel for 3D printing. By controlling synthesis conditions, a core-shell structure of acid-doped polyaniline coated inorganic nanoparticles is formed, and a good conductive path is formed in polyamide with a small addition amount of polyaniline. The antistatic aerogel for 3D printing can be applied to technologies such as photocuring molding and fused deposition of polyurethane resin in a 3D printing technology, and the antistatic property and the mechanical property of a 3D printed product are improved.

The invention belongs to the technical field of aerogel materials, and particularly relates to high-performance antistatic aerogel for 3D printing as well as a preparation method and application thereof. According to the invention, inorganic hollow nanoparticles are selected as a nucleating modifier for in-situ polymerization of aniline monomers in a polyamide solution, so that polyaniline-coated inorganic hollow nanoparticles are uniformly dispersed in polyamide, and the aerogel composite material with polyamide as a continuous phase and polyaniline-coated inorganic hollow nanoparticles as a conductive and reinforced phase is formed. The use of the hollow inorganic nanoparticles avoids the problem that the solid inorganic nanoparticles lose the characteristics of the inorganic nanoparticles due to high specific gravity and high surface energy, and easy agglomeration or adsorption with other substances in the preparation process of the solid inorganic nanoparticles. The inorganic hollow nanoparticles are adopted as a nucleating modifier, so that the problems of agglomeration of solid nanoparticles and dispersion in a polyamide matrix are well solved.

The invention relates to the technical field of oil-displacing agents, and particularly discloses a targeted nano oil-displacing agent and a preparation method thereof. A preparation method of a targeted nano oil displacement agent comprises the following steps: S1, dispersing 10-30 parts by mass of silanized inorganic nanoparticles in an alcoholic solution, adding 5-12 parts by mass of a functional monomer, 8-20 parts by mass of a hydrophilic monomer and 5-15 parts by mass of a hydrophobic monomer in an inert atmosphere, uniformly mixing, heating to 75-85 DEG C, adding an initiator, carrying out a constant temperature reaction for 4-6 h, and cooling to obtain a pre-grafted nanoparticle dispersion liquid; s2, mixing the pre-grafted nanoparticle dispersion liquid with a composite surfactant, adjusting the pH value to 6.5-7.5, and mixing at 30-40 DEG C for 22-26 hours to obtain the targeted nano oil displacement agent, the targeting type nano oil displacement agent prepared by the invention can still keep excellent dispersion stability and ultralow interfacial tension under the condition of a high-salt oil reservoir, so that the oil displacement efficiency is remarkably improved.

The invention discloses an acrylate grouting material and a preparation method thereof.The acrylate grouting material comprises a component A and a component B. The component A comprises, by weight, 40-90 parts of an acrylate main agent; 1-15 parts of a cross-linking agent; 0.1 to 10 parts of an accelerant; 1-30 parts of an inorganic filler; the component B comprises the following components in parts by weight: 0.1-10 parts of an initiator; wherein the inorganic filler is selected from one or two of an inorganic cementing material and inorganic nanoparticles. An organic-inorganic interpenetrating network structure is constructed on the basis of an electrostatic complexing action principle between an organic monomer and an inorganic monomer by using an inorganic cementing material and inorganic nanoparticle hybridized acrylate, so that the strength of a slurry consolidated body is greatly improved and the service life of the slurry consolidated body is greatly prolonged on the premise of ensuring the permeability of the slurry.

The invention discloses a microporous diaphragm for a low-electrical-impedance lithium battery and a preparation method of the microporous diaphragm. The diaphragm comprises: a base film layer, wherein the base film layer is of a microporous structure formed by biaxially stretching polypropylene and / or polyethylene; the surface of the base film layer is coated with the functional coating, and the functional coating contains mixed slurry of inorganic nanoparticles and a binder; the surface modification layer is formed by introducing a hydrophilic electrolyte group on the surface of the functional coating through plasma treatment or chemical grafting. The base membrane layer forms a uniform micropore structure through a two-way stretching process, the functional coating is formed by compounding nano silicon dioxide or aluminum oxide and polyvinylidene fluoride according to a specific proportion, a porous layer with gradient pore diameter is formed, the pore size of the porous layer is smaller than that of the base membrane layer, and efficient permeation of electrolyte is ensured. Electrolyte-philic groups such as sulfonic groups are introduced into the surface modification layer, so that the wettability of the diaphragm to an electrolyte is remarkably improved. During preparation, the base membrane is formed through melt blending, two-way stretching and pore-forming agent extraction, and then the functional layer is constructed through slurry coating and a low-temperature plasma treatment or sulfonation process. The diaphragm combines gradient aperture design, inorganic filler enhancement and surface chemical modification, and realizes low impedance, high thermal stability and excellent mechanical strength.

A method of treating or maintaining an apparatus is achieved by subjecting at least one treated component of an apparatus to electrochemical corrosion protection. The treated component has surfaces treated with a coating of a treatment composition of a colloidal particle dispersion having inorganic nanoparticles with an average particle size from 500 nm or less that exhibit properties of Brownian motion. At least some of the inorganic nanoparticles are ionically charged nanoparticles, and wherein at least some of the ionically charged nanoparticles reside on the surfaces when the at least one treated component of an apparatus is subjected to electrochemical corrosion protection.

The invention discloses a composite polyacrylamide flocculant based on a nano core-shell structure as well as a preparation method and application of the composite polyacrylamide flocculant. The composite polyacrylamide flocculant is a core-shell structure composite material which takes inorganic nanoparticles grafted with carbon-carbon double bonds on the surface as a core and takes a polyacrylamide copolymer as a shell; the polyacrylamide copolymer is prepared from the following components in parts by mass: 70 to 90 parts of acrylamide, 10 to 30 parts of functional monomer and 0.1 to 1.0 part of cross-linking agent. The basic conception of the flocculating agent provided by the invention is that the structural design of inorganic nano core-organic polymer shell is adopted, PAM molecular chains firmly grow on the surfaces of nano particles in a chemical grafting manner, high dispersion and functional synergy of nano units are realized, and the obtained product has the characteristics of high flocculation speed, dense floc, high removal efficiency and the like, and has a wide application prospect. The method is especially suitable for deep treatment of difficult-to-treat industrial wastewater such as oil-containing wastewater, dye wastewater and heavy metal wastewater.

The invention provides a toughened curing-controllable prepreg and a preparation method thereof, and belongs to the technical field of high-performance composite materials. Comprising the following components in parts by mass: 100 parts of epoxy resin, 100 parts of a thermoplastic resin toughening agent, 100 parts of an inorganic nanoparticle toughening agent, 100 parts of a latent curing agent, 100 parts of an organic urea accelerant, 100 parts of an imidazole accelerant and 100 parts of a reactive diluent, correspondingly, 1-5 parts by mass of a thermoplastic resin flexibilizer, 0-3 parts by mass of an inorganic nanoparticle flexibilizer, 4-8 parts by mass of a latent curing agent, 1-4 parts by mass of an organic urea accelerator, 0.1-0.5 part by mass of an imidazole accelerator and 5-20 parts by mass of an active diluent are added. The prepreg provided by the invention not only is endowed with fast curing and controllable curing time, but also is endowed with relatively long room-temperature storage period, high toughness and good impact resistance, and is especially suitable for the fields of low-altitude aircrafts, automobiles, ships and the like.

The invention provides a special flame-retardant PC / ABS alloy material for a high-heat-resistant power battery accessory and a preparation method of the special flame-retardant PC / ABS alloy material, and relates to the technical field of high polymer materials. According to the invention, PC and ABS with specific indexes are selected to improve the strength and heat resistance of the basic resin. Three combustion improvers with different flame-retardant mechanisms and an activated 4A molecular sieve are used as auxiliary flame-retardant synergists, so that the effect of the auxiliaries is exerted to the greatest extent, the total addition amount is reduced, and the loss of material performance is reduced; the heat resistance of the material is enhanced by matching the organic polymer heat-resistant agent and the inorganic nanoparticles, and the heat deformation temperature and the vicat softening point are improved by a relatively low addition amount. Compared with a general grafting toughening agent and an MBS toughening agent, the impact-resistant toughening agent with a core-shell structure of an organic silicon system is selected, so that the low-temperature impact resistance and the weather resistance are more excellent, the synergistic effect on a flame-retardant system is good, and the material is endowed with a good appearance.

The invention relates to the technical field of optical cement, in particular to high-temperature-resistant acrylic optical cement with high light transmittance and a preparation method of the high-temperature-resistant acrylic optical cement. The preparation method of the high-light-transmittance high-temperature-resistant acrylic optical adhesive comprises the following steps: (1) under the protection of inert gas, mixing an acrylate monomer, a carboxyl-containing monomer, an epoxy-containing monomer, a hydroxyl-containing monomer, a photoinitiator and modified inorganic nanoparticles, and stirring at 60-90 DEG C and 200-600rpm for 3-8 hours to obtain an adhesive solution; and (2) carrying out vacuum curing on the glue solution at 50-80 DEG C for 5-15 minutes to form a glue material, pressing the glue material into a film, and cooling to obtain the optical cement. The prepared high-temperature-resistant acrylic optical adhesive with high light transmittance has good light transmittance, high-temperature resistance and good peel strength, the light transmittance of the optical adhesive is larger than 90%, the heat-resistant temperature is larger than 150 DEG C, the peel strength is larger than 14 N / 25 mm, and the peel strength after high-temperature treatment is larger than 11.8 N / 25 mm.

The invention relates to the technical field of rubber, and relates to a wear-resistant rubber composite material and a preparation method thereof. The wear-resistant rubber composite material is prepared from the following components in parts by weight: 100 parts of a rubber matrix, 30 to 60 parts of multi-stage core-shell structure composite filler, 10 to 15 parts of carbon black, 1.0 to 2.5 parts of a vulcanizing agent, 0.5 to 2.0 parts of an accelerant, 3 to 6 parts of an active agent and 1 to 3 parts of an anti-aging agent, the multi-stage core-shell structure composite filler sequentially comprises a rigid inorganic nano-particle core, a rigid inorganic nano-particle core and a rigid inorganic nano-particle core from inside to outside, the core is coated with the first shell layer, the first shell layer is a mesoporous silica layer, and a silane coupling agent containing sulfur groups is modified in the mesoporous silica layer; and the second shell layer is coated outside the first shell layer and is a hyperbranched polymer layer. According to the wear-resistant rubber composite material provided by the invention, the comprehensive mechanical property and wear resistance of the rubber composite material are improved.

The invention discloses application of a particle stabilizer, an oil-in-oil Pickering emulsion as well as a preparation method and application of the oil-in-oil Pickering emulsion, and relates to the technical field of emulsion preparation. The particle stabilizer is used for preparing the oil-in-oil Pickering emulsion, and the particle stabilizer is solid insoluble nanoparticles and is selected from one or more of inorganic nanoparticles, organic nanoparticles, composite oleophobic nanoparticles and stimuli-responsive nanoparticles. The preparation method of the oil-in-oil Pickering emulsion comprises the following steps: mixing the first oil phase, the second oil phase and the particle stabilizer, and carrying out an emulsification technology to obtain the oil-in-oil Pickering emulsion. According to the emulsion system prepared by the invention, the oil phase components with different polarity differences are reasonably matched, and the oil phase type is flexibly selected according to specific requirements of target application, so that the environmental adaptability and the function application range of the emulsion can be remarkably improved, and the emulsion system has a good application prospect.

The invention discloses an inorganic pigment-based colored radiation cooling coated fabric which comprises a fiber fabric, and a daytime passive radiation coating and a modified inorganic pigment coating which are sequentially coated on the surface of the fiber fabric, the daytime passive radiation coating is an inorganic nano particle coating; the particle size distribution of the inorganic nanoparticles is nanoscale, the sunlight reflectivity of the inorganic nanoparticles is more than 90%, and the mid-infrared radiance of the inorganic nanoparticles is more than 85%; the preparation method of the modified inorganic pigment comprises the following steps: ball-milling an inorganic pigment, adding the ball-milled inorganic pigment into an organic solvent, adding an inorganic non-metallic material, uniformly mixing, standing, taking an upper-layer solution, and drying to obtain inorganic non-metallic microspheres of which the surfaces are adsorbed with the inorganic pigment; and calcining the inorganic nonmetal microspheres with the inorganic pigment adsorbed on the surfaces to obtain the modified inorganic pigment. The problems that in the prior art, a radiation cooling coating is monotonous in color, complex in preparation method, high in cost and the like are solved.

The invention relates to the technical field of optical films, and discloses a PET-based composite optical film and a preparation method thereof.The optical film is prepared from 100 parts of PET master batch, 5-10 parts of anti-blue-light nanofiller and 1-3 parts of interfacial compatibilizer through melt extrusion, asynchronous two-way stretching, online anti-fingerprint coating liquid coating and cooling and rolling; the blue-light-resistant nano filler is a core-shell structure filler prepared by taking KH570 silanized nano cerium oxide as a core, polymerizing by grafting glycidyl methacrylate to form a shell layer, and then reacting with 1H-benzotriazole-1-methanol. The anti-fingerprint coating liquid is prepared from perfluoropolyether modified siloxane acrylate and nano silicon dioxide sol. Through core-shell filler design and functional coating online coating, the technical problems that inorganic nanoparticles are easy to agglomerate and organic small molecule auxiliary agents are easy to migrate are synergistically solved, and the obtained optical film has excellent properties of high light transmittance, low haze, efficient blue light resistance and lasting fingerprint resistance and is good in durability.

The invention discloses an aramid fiber lithium battery diaphragm and a preparation method thereof, and belongs to the technical field of battery diaphragms. The preparation method of the aramid lithium battery diaphragm comprises the following steps: S1, mixing and stirring para-aramid fibers, DMSO, KOH and deionized water to prepare a para-aramid nanofiber solution; s2, modified silicon dioxide is added into the para-aramid nanofiber solution, then ultrasonic treatment and stirring are carried out, dispersion liquid is obtained, and the modified silicon dioxide is PEI grafted phosphorus-containing metal organic framework coated SiO2; and S3, coating the surface of a polyolefin diaphragm with the dispersion liquid, treating the coated diaphragm in an aqueous solution for 3-4 hours, and then drying to obtain the aramid fiber lithium battery diaphragm. According to the preparation method disclosed by the invention, the modified silicon dioxide is added, and the modified silicon dioxide is PEI grafted phosphorus-containing metal organic framework coated SiO2, so that the problems that in the prior art, the dispersity of inorganic nanoparticles is poor, and the interface bonding between the inorganic nanoparticles and para-aramid nanofibers needs to be improved are solved, and the comprehensive performance of the diaphragm is improved.

The invention belongs to the technical field of polymer composite materials, and particularly relates to a high-strength bismaleimide resin material and a preparation method thereof. The bismaleimide resin composition comprises the following components in parts by weight: 50-60 parts of bismaleimide resin, 40-50 parts of an allyl compound, 1-3 parts of modified graphene and 0.1-0.5 part of a dispersing filler, the dispersing filler is prepared from modified inorganic nanoparticles and modified tetrapod-like zinc oxide whiskers in a mass ratio of (0.1-1): 1. Wherein the tetrapod-like zinc oxide whiskers can promote the dispersion of the graphene with a large lamellar structure from the macroscopic aspect, so that the graphene is uniformly dispersed in a bismaleimide resin matrix, and the inorganic nanoparticles can play a role in lubrication and isolation, so that the agglomeration among graphene lamellas in a small range is prevented. By adding the graphene composite reinforcing filler, the rigidity of the bismaleimide resin material is improved, and the toughness of the composite material can be improved at the same time.

The invention belongs to the technical field of batteries, and relates to a composite phase change electrolyte and a preparation method and application thereof. The composite phase-change electrolyte comprises a lithium salt, a solvent, a cross-linking agent and inorganic nanoparticles, and the cross-linking agent is one or more of a polysiloxane derivative and a polyfunctional group acrylate derivative. According to the composite phase change electrolyte provided by the invention, relatively high ionic conductivity is provided, the ion diffusion resistance is reduced, and the electrolyte is always kept in a liquid state within a conventional temperature range; when the battery reaches the phase change temperature, the electrolyte is changed from liquid to solid, an ion path is blocked, and the safety protection of the battery at high temperature is realized; in addition, the battery using the composite phase change electrolyte has a relatively long cycle life at a room temperature and in a working environment of-30 DEG C. The composite phase-change electrolyte is suitable for a high-safety lithium ion battery, and is especially suitable for application scenes of extreme temperature conditions, such as high-temperature thermal runaway protection and low-temperature performance protection.

The invention discloses a high-flux anti-pollution nanofiber membrane modified by a nanoparticle reinforced coating and a preparation method of the high-flux anti-pollution nanofiber membrane. The nanofiber membrane is prepared by doping hydrophilic nanoparticles into a spinning solution and coupling an electrostatic spinning process with a functional coating for modification. The hydrophilic nano-particles are selected from hydrophilic modified inorganic nano-particles, organic nano-particles, carbon-based nano-materials or metal organic framework materials. Nanoparticles, a membrane base material and a solvent are blended to form a uniform spinning solution, and functional coating deposition is performed after electrostatic spinning forming. The method is simple and efficient in preparation process, and the obtained nanofiber membrane has excellent hydrophilicity and anti-pollution performance. The introduction of the nanoparticles not only realizes hydrophilic modification of the membrane surface, but also significantly enhances the bonding strength of the coating and the matrix, so that the membrane material has excellent selective separation performance on oil substances (the rejection rate is greater than or equal to 99%) and macromolecular impurities while maintaining high flux (pure water flux is 3000-4000 L.m <-2 >. H <-1 >), and the transmittance on protein can reach 99%. The membrane material also has outstanding flux recovery rate (greater than or equal to 90%) and long-term operation stability, and has wide application prospects in the fields of sewage treatment, food processing and the like.

The invention belongs to the field of biological medicine and material science, and particularly relates to an intelligent response type piezoelectric nanofiber dressing and a preparation method and application thereof. According to the preparation method, polyvinylidene fluoride-trifluoroethylene, a high polymer material and inorganic nanoparticles are blended and spun through an electrostatic spinning technology, and then a photo-thermal component coating is subjected to surface in-situ oxidation and self-polymerization, so that the composite fiber membrane is prepared. Under the stimulation of ultrasound (US) and near-infrared laser (Laser), the fiber membrane can cooperatively activate the piezoelectric effect and the photothermal effect, generate a dynamic electric field and local high temperature, realize multi-mode cooperative killing of bacteria (the antibacterial rate exceeds 99%), and simulate an endogenous electric field to promote cell migration and wound healing. The dressing has good mechanical properties (the Young modulus is 15-20 MPa), hydrophilicity (the contact angle is about 30 degrees), biocompatibility and stability, is suitable for treatment of chronic infected wounds such as diabetes mellitus and the like, and has the advantages of on-demand activation and intelligent response.

The invention discloses a high-temperature-resistant and wear-resistant modified TPU film and a preparation method thereof.The preparation method comprises the steps that S1, a long-chain silane coupling agent, ethyl alcohol and an aqueous solution are mixed, and a first mixed suspension is formed; mixing a short-chain silane coupling agent with ethanol and an aqueous solution to form a second mixed suspension; step S2, uniformly dispersing inorganic nanoparticles in an ethanol-water mixed solution by utilizing emulsifying equipment; mixing the solutions obtained in the steps S1 and S2, reacting in a container, filtering and washing the obtained product, and drying to obtain modified inorganic nanoparticles; mixing the dried TPU particles with the modified inorganic nano powder, and granulating; and uniformly mixing the modified TPU particles, the raw material particles and an antioxidant according to a set amount, putting the mixture into casting equipment for processing, and applying pressure to the extruded viscous TPU material, so that the extruded viscous TPU material is directionally and uniformly stretched and cooled, thereby obtaining the modified TPU film. According to the preparation method, the dispersity and interface bonding strength of the inorganic nanoparticles in the TPU film can be remarkably improved.

The invention discloses a preparation method of corona-resistant oil-water-resistant low-dielectric polyimide. The preparation method comprises the following steps: S1, dissolving a fluorine-containing diamine monomer in an organic solvent; s2, adding an anhydride monomer into the diamine monomer solution obtained in the step S1 to obtain a polyamide acid solution, adding inorganic nanoparticles, and uniformly stirring; s3, adding methacryloyloxy propyl cage type polysilsesquioxane into the solution obtained in the step S2 to obtain polyimide slurry; the ratio of the total molar weight of the anhydride monomer to the total molar weight of the diamine monomer is (0.8-1.2): 1, the total solid content of the sum of the anhydride monomer and the diamine monomer in the solution is 5-50wt%, the proportion of the nanoparticles in the total solid content of the solution is 0.5-30wt%, and the proportion of the methacryloyloxy propyl cage type polysilsesquioxane in the total solid content of the solution is 0.5-30wt%. According to the preparation method of the low-dielectric polyimide, the corona resistance and oil-water resistance of a polyimide material are improved, and meanwhile, the dielectric constant of the material is reduced. The invention also provides the low dielectric polyimide.

The invention discloses a coated fabric with radiation cooling and infrared stealth functions and a preparation method of the coated fabric. The coated fabric with the radiation cooling and infrared stealth functions comprises a fabric substrate, and a radiation cooling coating and an infrared stealth coating which are respectively coated on two side surfaces of the fabric substrate, the radiation cooling coating is a water-based environment-friendly coating coated with inorganic nanoparticles; and the infrared stealth coating is a binder polymer coating coated with reflective particles. According to the coated fabric with the radiation cooling and infrared stealth functions, the two contradictory functions of infrared stealth and radiation cooling are combined together in a double-sided coating mode.

The invention relates to the technical field of battery materials, and discloses a modified diaphragm, a preparation method thereof and a negative-electrode-free sodium metal battery. The modified diaphragm comprises a base membrane and a first functional layer arranged on one side of the base membrane; the first functional layer comprises an isotropic elastic matrix and inorganic nanoparticles distributed in the elastic matrix, and the mass ratio of the inorganic nanoparticles to the elastic matrix is (150-200): (100-125). The modified diaphragm can uniformly buffer the huge expansive force of the non-cathode sodium battery, so that the permeation of sodium metal into pores of the diaphragm is inhibited, and the occurrence of short circuit of the battery is avoided.

The invention discloses a high-wettability polyethylene diaphragm for a lithium battery and a preparation method of the high-wettability polyethylene diaphragm, and relates to the technical field of polyethylene diaphragms for lithium batteries. The high-wettability polyethylene diaphragm for the lithium battery comprises the following components in parts by mass: 50-80 parts of a polyethylene base material, 5-20 parts of inorganic nanoparticles, 1-5 parts of a surfactant, 10-30 parts of a pore-forming agent, 0.5-3 parts of a coupling agent and 1-2 parts of a stabilizer. And through a dynamic coordination network of the stabilizer and a multi-component synergistic effect, the diaphragm-electrolyte interface characteristic is optimized, and more efficient lithium ion transmission is realized. The heteroatom bridging effect of the rigid stabilizer skeleton and the inorganic particles inhibits high-temperature shrinkage and stress deformation, and improves the reliability of the diaphragm under extreme working conditions. Uniform and intercommunicated micro-nano pores are formed through space cooperative regulation and control of the pore-forming agent and the stabilizer, mechanical strength and electrolyte infiltration consistency are considered, and the cycle life of the battery is prolonged.

The invention discloses an anti-ultraviolet epoxy resin coating and a preparation method thereof, and belongs to the technical field of epoxy resin coatings. Comprising a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 80-90 parts of bisphenol A epoxy resin, 5-8 parts of a reactive diluent, 10-15 parts of modified titanium dioxide, 2-6 parts of an anti-ultraviolet agent, 0.2-0.5 part of a defoaming agent and 0.2-0.5 part of a flatting agent. And the component B is a curing agent. The modified titanium dioxide and the self-made anti-ultraviolet agent are introduced, and the modified titanium dioxide and the self-made anti-ultraviolet agent can achieve a synergistic effect, so that the anti-ultraviolet performance of the coating is remarkably improved; wherein the modified titanium dioxide has better compatibility with an epoxy resin matrix, the dispersion is more uniform, and the problem that traditional inorganic nanoparticles are easy to agglomerate is avoided; in conclusion, the prepared coating has stable and efficient anti-ultraviolet performance and has important application value in the field of epoxy resin coatings.

The invention discloses a solid-state electrolyte and a preparation method thereof, and a solid-state battery, the solid-state electrolyte is prepared from a polymer, and a lithium salt and an additive dispersed in the polymer, the additive comprises inorganic nanoparticles, a plasticizer and an ionic liquid, the polymer is polyvinyl ether of one of formulas P1 to P7, the number-average molecular weight of the polymer is 1 * 10 < 4 >-10 * 10 < 4 >; wherein m is a positive integer, Cy is cyclohexyl, iBu is isobutyl, nBu is n-butyl, and Bn is benzyl. The adopted polyvinyl ether is a three-dimensional isotactic polymer, and a main chain and a side chain do not contain chemical groups (such as hydroxyl) of reactive hydrogen, so that the oxygenolysis tendency of the electrolyte under high pressure can be remarkably reduced, and an electrochemical window is remarkably improved. The electrochemical window of the solid-state battery is improved to 4.8 V or above.

A process for ultrasensitive in vitro detection and / or quantification of a substance of interest in a sample is performed by detecting the luminescence emission by photoluminescent inorganic nanoparticles. The process includes (i) use of photoluminescent particles comprising a photoluminescent inorganic nanoparticle consisting of a crystalline matrix having at least 103 rare-earth ions, and coupled to a targeting agent for the substance to be analyzed, under conditions conducive to their association with the sample substance to be analyzed; (ii) exciting the rare-earth ions of the particles by an illumination device having a power of at least 50 mW and an excitation intensity of at least 1 W / cm2; (iii) detecting the luminescence emission by the particles after single-photon absorption; and (iv) determining the presence and / or concentration of the substance by interpreting said luminescence measurement. This process can be used for in vitro diagnostic purposes and as an in vitro diagnostic kit.

The utility model discloses a quantum dot light emitting diode, a display substrate and a display device. The quantum dot light-emitting diode comprises a first electrode, a second electrode, and a quantum dot light-emitting layer, a first electron transport layer and a second electron transport layer which are arranged between the first electrode and the second electrode, wherein the first electron transport layer and the second electron transport layer are sequentially arranged on one side, close to the second electrode, of the quantum dot light-emitting layer; wherein the first electron transport layer and the second electron transport layer are made of inorganic nanoparticles, the conduction band bottom energy level of the first electron transport layer is matched with the conduction band bottom energy level of the quantum dot light-emitting layer, and the conduction band bottom energy level of the second electron transport layer is larger than the work function of the second electrode and smaller than the conduction band bottom energy level of the first electron transport layer; the carrier mobility of the second electron transport layer is greater than that of the first electron transport layer, and the second electron transport layer is configured to adjust the length of the optical microcavity between the first electrode and the second electrode.

This invention provides a novel thermal insulation fabric and its preparation method. The preparation method uses polyester material as the polymer matrix, Cs x Wo3NPs, as a photothermal conversion material, is melt-blended and extruded to obtain a composite masterbatch, which is then melt-spun into composite polyester fibers. These fibers are subsequently knitted with a certain proportion of spandex filaments to create a novel thermal insulation fabric. This fabric not only possesses excellent light absorption and heat generation properties, but also addresses the technical issues of easy coating peeling and short service life in finished textiles by encapsulating inorganic nanoparticles with organic polymers. This ensures the stability and safety of the photothermal conversion nanoparticle material. Furthermore, the fabric has a silky smooth feel, good elasticity, and excellent dyeing properties.

The invention belongs to the technical field of plate preparation, and particularly relates to a galvanized plate special for household appliances and a preparation method thereof. The surface of the galvanized sheet contains a hydrophobic coating, and the hydrophobic coating comprises the following raw materials in parts by mass: 60-80 parts of organic silicon modified polyurethane, 5-15 parts of carbon nanotubes, 5-10 parts of large-particle-size inorganic nanoparticles, 1-5 parts of small-particle-size inorganic nanoparticles, 0.1-3 parts of a flatting agent, 0.1-2 parts of a defoaming agent and 50-1000 parts of a solvent. By compounding the linear curled carbon nanotubes, the small-particle-size inorganic nanoparticles and the large-particle-size inorganic nanoparticles, the dispersity of the filler in the coating can be improved, the roughness of a micro-nano rough structure on the surface of the coating is greatly improved, an air cushion layer exists in the structure, when water drops make contact with the rough surface, the air cushion layer lifts the rough surface, and the surface of the coating is protected. And the grooves on the rough surface cannot be filled with water drops, so that the coating has super-hydrophobic capacity.