318 results about "Inorganic nanoparticles" patented technology

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 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 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 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 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 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 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 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 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.

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 provides a preparation method of an impact-resistant wear-resistant PMMA (polymethyl methacrylate) casting plate and the PMMA casting plate, and the preparation method comprises the following steps: mixing a prepolymer, a modified flexibilizer and a cross-linking agent, then carrying out vacuum degassing, transferring into a mold, and carrying out water bath heating reaction hardening to obtain the PMMA casting plate, wherein the modified toughening agent is core-shell structure resin, and a core layer of the core-shell structure resin contains inorganic nanoparticles. The PMMA casting plate is prepared according to the method. The inorganic nanoparticles are modified and then doped into the core layer of the core-shell structure resin to obtain the modified toughening agent, and after the PMMA casting plate is prepared on the basis of the modified toughening agent, the light transmittance of the PMMA casting plate can be effectively guaranteed, meanwhile, the impact resistance and wear resistance of the MMA casting plate can be improved, and the application range of the PMMA casting plate can be further widened.

The invention relates to the technical field of lithium ion batteries, and discloses a composite diaphragm, a lithium ion battery and an electric device. Wherein the composite diaphragm comprises a porous polymer base membrane, two sides of the porous polymer base membrane are respectively coated with a first functional layer and a second functional layer, the first functional layer comprises an inorganic filler polymer matrix layer, and the inorganic filler polymer matrix layer comprises an inorganic filler, a polymer matrix and a first slurry solvent; the second functional layer comprises a lithium-philic polymer matrix layer, and the lithium-philic polymer matrix layer comprises a lithium-philic polymer, a conductive carbon material, inorganic nanoparticles and a second slurry solvent.

The invention discloses a manufacturing process of a high-temperature-resistant washing tooling fabric, which relates to the technical field of tooling fabrics and comprises a fabric base material conditioning part, a fabric weaving processing part, a fabric dyeing treatment part and an after-finishing part. The fabric base material conditioning part adopts composite fibers, and the composite fibers are sequentially subjected to surface roughening treatment, PAMAM-polydopamine composite coating treatment and inorganic nanoparticle loading treatment; the fabric weaving processing part is used for preparing gray cloth; the fabric dyeing treatment part is used for preparing dyed gray cloth. The composite fibers are sequentially subjected to surface roughening, PAMAM-polydopamine composite coating and inorganic nanoparticle loading treatment and then subjected to weaving, dyeing and after-finishing, so that the structural stability and dye adhesion of the tooling fabric can be effectively improved, the high-temperature washing resistance is enhanced, and the service life of the tooling fabric is prolonged. Therefore, the manufacturing process of the high-temperature-washing-resistant tooling fabric has the effects of improving the dimensional stability and the color adhesive force.

The invention provides a lithium ion battery composite membrane with high safety and high ionic conductivity and a preparation method thereof.The lithium ion battery composite membrane comprises a base membrane and a functional coating compounded on the surface of at least one side of the base membrane, and the functional coating comprises, by weight, 60-85% of a high-temperature-resistant polymer matrix, 1-5% of a binder, 1-5% of an antioxidant and 1-5% of a lubricant. And 15-40% of sulfobetaine functionalized inorganic nanoparticles. The high-temperature-resistant polymer matrix and the sulfobetaine functionalized inorganic nanoparticles form a synergistic effect, so that the high-temperature thermal shrinkage of the diaphragm can be effectively inhibited, the short-circuit risk of the battery caused by diaphragm melting can be greatly reduced, and the use reliability is improved. Meanwhile, the zwitterionic groups on the surfaces of the sulfobetaine functionalized inorganic nanoparticles are extremely high in hydrophilicity, so that the infiltration speed of the diaphragm on electrolyte can be increased, the electrolyte retention capability can be enhanced, a continuous micro-nano ion transmission channel can be constructed in the coating, and the lithium ion migration efficiency can be improved.

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 invention discloses a colloidal electrolyte for inhibiting aluminum foil corrosion by modified inorganic nanoparticles, which comprises a carbonic ester-based electrolyte and modified inorganic nanoparticles, and the modified inorganic nanoparticles are obtained by grafting and modifying inorganic nanoparticles through a long-chain silane coupling agent; wherein the modified inorganic nanoparticles account for 1%-5% of the mass of the carbonic ester-based electrolyte. The long-chain alkyl functional group is grafted on the surface of the inorganic nanoparticle, so that the interaction and steric effect of the inorganic nanoparticle, the solvent and the lithium salt are improved, and the colloidal electrolyte is finally formed; through the colloidal electrolyte, the cycling stability of a battery cell can be improved, and breakage and sudden reduction of battery capacity caused by corrosion of a positive aluminum tab are avoided.

The invention relates to the technical field of all-solid-state lithium batteries, and discloses a high-ionic-conductivity inorganic nanoparticle dispersed polyether composite solid electrolyte composition, which is prepared from the following components in percentage by weight: 35 to 65 percent of inorganic solid electrolyte nanoparticles, 15 to 45 percent of polyether polymer matrix precursor, 2 to 8 percent of cross-linking agent, 10 to 20 percent of lithium salt and initiator, wherein the molar ratio of lithium salt to ether oxygen atoms is 1 / 20, a three-dimensional cross-linked network is constructed through an in-situ ultraviolet polymerization reaction, high-content inorganic nanoparticles are physically locked in a polymer grid, and a continuous ion transmission channel is constructed at room temperature through a percolation effect while particle aggregation is inhibited, so that the high-content inorganic nanoparticles can be prepared. The composition has excellent ionic conductivity and mechanical flexibility, effectively solves the problems of high brittleness and low conductivity of the traditional composite electrolyte, only needs wet coating in the preparation process, and is suitable for large-area film production.

The present invention deals with the development of novel nanocomposite paints for biofouling removal coatings, which result from the mixing of two components, where the first component is an epoxy resin (component A) and the second component is a suitably modified polymerization agent (hardener). These hardeners are modified with hydrophobic nanoparticles based on functional dendritic polymers with symmetric or asymmetric architecture or based on functional inorganic nanoparticles (metal or metalloid nanoparticles or a mixture thereof). Both the polymeric nanoparticles and the inorganic nanoparticles were modified with suitable lipophilic groups. These nanocomposite paints addressed by the present invention exhibit organic microfilm control properties and can be effectively applied to objects immersed in seawater as biofouling removal coatings.

The application discloses a flame retardant with a microcapsule structure, a flame-retardant fiber and a preparation method and application thereof, the flame retardant comprises a core material and a shell covering the core material, the core material is a phosphazene flame retardant compound, and the shell is inorganic nanoparticles; the structure of the phosphazene flame retardant compound is shown as formula I: wherein, R1 is selected from R2 is selected from -OCH3, a benzene ring, and the application simultaneously introduces the elements phosphorus, nitrogen and silicon with flame retardant performance into the flame retardant compound and prepares a microcapsule structure; the outer layer has exposed hydroxyl groups, can form hydrogen bonds with hydroxyl groups on cellulose, and improves the binding force between the flame retardant and the cellulose. The flame-retardant Lyocell fiber prepared by using the flame retardant can simultaneously have excellent flame retardancy, mechanical properties and washing resistance, and the flame retardant has a small use and addition amount and a high effective incorporation rate.

The invention provides automobile glass and a preparation method thereof. The automobile glass comprises a first glass substrate, a bonding layer, a second glass substrate and a scattering layer, the first glass substrate is provided with a first surface facing the outside of an automobile and a second surface facing the inside of the automobile, the second glass substrate is provided with a third surface facing the outside of the automobile and a fourth surface facing the inside of the automobile, and the bonding layer is arranged between the second surface and the third surface; the scattering layer is arranged on the third surface or the fourth surface; the scattering layer is composed of silicon dioxide and contains inorganic nano particles and inorganic micron particles; the particle size of the inorganic nano particles is 1-100 nm, and the particle size of the inorganic micro particles is 1-5 microns. The scattering layer of the automobile glass has high visible light transmittance and low haze, and under the condition that the light source is arranged on the edge of the glass and powered on, the scattering layer can have high brightness when scattering light rays emitted by the light source. Under the condition that the light source is turned off, the scattering layer can be invisible, and the visible light transmittance and haze of the glass are not affected.

This invention discloses an impact-resistant and explosion-proof protective eyewear composite material and its preparation method, belonging to the field of protective eyewear technology. The impact-resistant and explosion-proof protective eyewear composite material of this invention comprises the following components by weight: 70-100 parts of modified UV-resistant polycarbonate, 2-8 parts of modified inorganic nanoparticles, and 8-20 parts of Ph-PBS-HR. The rigid modified inorganic nanoparticles, together with the modified UV-resistant polycarbonate and the flexible Ph-PBS-HR, work synergistically to give the protective eyewear high impact and explosion-proof capabilities. The symmetrical benzene rings in the main chain of the modified UV-resistant polycarbonate and Ph-PBS-HR reduce self-scattering and interface scattering, reducing haze and improving the light transmittance of the protective eyewear. The introduction of UV-resistant functional components into the modified UV-resistant polycarbonate reduces the risk of yellowing due to UV aging.

The present invention relates to a composition comprising a self-amplifying RNA (saRNA) encoding at least one polypeptide of infectious laryngotracheitis virus (ILTV; Gallid alphaherpesvirus 1, GaHV-1), a polypeptide variant of ILTV, or an immunogenic fragment or epitope thereof, and a pharmaceutically acceptable excipient comprising lipid inorganic nanoparticles (LION).More specifically, the sRNA encodes at least one laryngotracheitis virus polypeptide, an ILTV polypeptide variant, or an immunogenic fragment or epitope thereof, said sRNA comprising a first nucleic acid sequence including nsP1, nsP2, nsP3 and nsP4 which encode non-structural alphavirus proteins, a second nucleic acid sequence encoding at least one ILTV polypeptide, an ILTV polypeptide variant, an immunogenic fragment or an epitope thereof, and also comprising a 5' cap, a 5' UTR upstream of the first nucleic acid sequence, a 26S promoter upstream of the second nucleic acid sequence, a 3' UTR and a poly A tail.

The invention belongs to the technical field of coatings, and particularly relates to a multifunctional coating for plates and a preparation method thereof, and the preparation method comprises the following steps: (1) preparing amino silane coupling agent modified molybdenum disulfide nanosheets; (2) after 10-20 wt% of graphene oxide, inorganic nanoparticles and the modified molybdenum disulfide nanosheets react for a period of time, the remaining graphene oxide is added for continuous reaction, and graphene oxide modified molybdenum disulfide nanosheets are obtained; and (3) stirring and dispersing the graphene oxide modified molybdenum disulfide nanosheet and a waterborne polyurethane dispersion liquid, then adding an auxiliary agent, and uniformly mixing again to obtain the multifunctional coating for the plate. The graphene oxide and the inorganic nanoparticles are adopted to modify the molybdenum disulfide, the modified molybdenum disulfide nanosheets can be uniformly dispersed in the coating, a highly-crosslinked three-dimensional network structure is formed, and the corrosion resistance of the waterborne polyurethane coating is remarkably improved.

The application provides an ultra-high molecular weight polyethylene fiber and a preparation method and application thereof, and the preparation method comprises the following steps: (1) mixing an ultra-high molecular weight polyethylene resin with a first solvent to obtain a spinning solution; (2) the spinning solution is subjected to swelling and dissolution in sequence to obtain a uniform solution; (3) the uniform solution is subjected to spinning and cooling in sequence to obtain a gel primary filament; (4) the gel primary filament is placed in a dispersion liquid to be extracted to obtain a modified gel primary filament; the dispersion liquid comprises a combination of a photo-initiator modified inorganic nano-particle, a cross-linking agent and a second solvent; (5) the modified gel primary filament is subjected to drawing and cross-linking reaction in sequence to obtain the ultra-high molecular weight polyethylene fiber. By using the preparation method provided by the application, the inorganic nano-particle and the polyethylene chain can be linked through a covalent bond, and a cross-linking network structure is formed between the polyethylene chains to some extent, so that the anti-creep performance of the ultra-high molecular weight polyethylene fiber can be improved.

The invention provides a preparation method of acacia gum nano-composite hydrogel. The preparation method comprises the following steps: S1, mixing an acacia gum aqueous solution with a free radical initiator, and then sequentially adding acrylonitrile, CuFe2O4 nanoparticles and a cross-linking agent into the mixture to obtain the acacia gum nano composite hydrogel. The acacia gum nano-composite hydrogel combines the characteristics of a natural polymer, a synthetic polymer and inorganic nanoparticles, and is an effective adsorbent for removing heavy metals in an aqueous solution, the prepared magnetic hydrogel is treated by hydroxylamine hydrochloride, so that a nitrile group is converted into an amidoxime group to serve as a bidentate ligand, and the adsorption capacity of the hydrogel is improved. The existence of CuFe2O4 in the acacia gum nano-composite hydrogel makes the recoverable magnetic hydrogel possible, the recoverable magnetic hydrogel can be easily removed from an aqueous solution and regenerated, and after three continuous cycles, the recoverable magnetic hydrogel still has high heavy metal adsorption capacity.

The invention discloses environment-friendly water-based gloss oil for packaging and printing and a preparation method of the environment-friendly water-based gloss oil, and relates to the technical field of packaging and printing. The coating comprises the following components: 30-50 parts of an acrylate copolymer emulsion, 10-20 parts of a waterborne polyurethane dispersion, 3-8 parts of modified nano cellulose, 2-7 parts of an inorganic nanoparticle compound, 3-8 parts of a coalescing agent, 2-5 parts of a leveling wetting agent, 0.5-2 parts of a defoaming agent, 2-6 parts of a cross-linking agent, 3-8 parts of a wax emulsion, 0.5-2 parts of a pH regulator and 15-35 parts of deionized water. The acrylate copolymer and the waterborne polyurethane are compounded, and the modified nano cellulose and the inorganic nano particle compound are combined, so that the glossiness, the wear resistance, the adhesive force and the water resistance are improved in a balanced manner, and the performance is close to or even superior to that of the traditional solvent type gloss oil; the evaporation resistance of water is remarkably reduced, the drying time is shortened to be within 20 seconds, the water-based ink is suitable for high-speed printing equipment, and the production efficiency is improved.

The application discloses an inorganic nanoparticle ink, an electron transport thin film and a light emitting diode. The inorganic nanoparticle ink comprises inorganic nanoparticles, an alcohol-soluble amino resin and an alcohol organic solvent. The alcohol-soluble amino resin contains a large number of polar groups such as alcohol and amine groups, has good alcohol solubility, and can form good mutual solubility with the inorganic nanoparticles. Thus, the proportion of the alcohol-soluble amino resin and the inorganic nanoparticles can be effectively adjusted, the electron transport performance of the inorganic nanoparticle ink can be effectively adjusted, and the electron transport thin film with good electron transport performance can be prepared, and then the light emitting diode with high light emitting efficiency and long service life can be prepared.

The invention discloses a rapid-absorption collagen repair membrane and a preparation method thereof, and relates to the technical field of biological materials. The repairing membrane is of a double-layer structure and comprises a purified collagen layer and an absorbable polymer spinning layer loaded with inorganic nanoparticles. The preparation method comprises the following steps: purifying animal skin to obtain a purified collagen layer; the preparation method comprises the following steps: respectively dispersing akermanite and hydroxyapatite nanoparticles, and mixing; adding the mixed dispersion liquid into the absorbable polymer solution to obtain a composite spinning solution; spinning the composite spinning solution on the surface of the collagen layer by adopting an electrostatic spinning method to form a spinning layer; and drying to obtain the repairing film. According to the invention, by regulating and controlling the variety, proportion, crystallinity and spatial distribution of the inorganic particles, the synergistic enhancement of mechanical properties and biological activity is realized, so that the repair film has pH-responsive graded release ability, can automatically adjust degradation behavior according to inflammation intensity, actively adapts to microenvironment, and has good application prospects. The method can be widely applied to the fields of oral soft tissue repair, periodontal wound covering and the like.