704 results about "Inorganic particles" patented technology

The invention relates to the technical field of refrigeration material preparation, in particular to an efficient passive radiation refrigeration material suitable for a sub-super environment and a preparation method and application of the efficient passive radiation refrigeration material. The method comprises the following steps: uniformly mixing thermoplastic polyurethane, sunlight high-reflection inorganic particles and a phase change material in a solvent; after a chemical foaming agent is added, the obtained suspension liquid is heated and foamed in a confinement mold, and wet gel is formed; and finally, carrying out freeze drying treatment to obtain the composite porous aerogel. The prepared material has a micro-nano porous skeleton formed by TPU, and inorganic particles and PCM are uniformly dispersed in the skeleton wall. Through component cooperation and a special porous structure, the material has extremely high sunlight reflectivity and mid-infrared emissivity, self-adaptive temperature regulation and control are achieved through PCM phase change, the problem that refrigeration of a traditional material fails in the sub-environment such as the vertical surface is effectively solved, and efficient sub-super-environment heat management is achieved.

The embodiment of the invention provides an anti-dazzle low-reflection optical film and a preparation method and application thereof, and relates to the field of optical films. The anti-dazzle low-reflection optical film comprises a base material layer, an anti-dazzle layer and a low-reflection layer which are sequentially stacked from bottom to top, the low-reflection layer contains low-reflection particles, and the anti-dazzle layer contains organic anti-dazzle particles and inorganic particles. The mass concentration of the organic anti-dazzle particles close to the base material layer is larger than the mass concentration of the organic anti-dazzle particles close to the low-reflection layer, the mass concentration of the inorganic particles close to the base material layer is smaller than the mass concentration of the inorganic particles close to the low-reflection layer, and the refractive index of the low-reflection particles is larger than the refractive index of the inorganic particles and smaller than the refractive index of the organic anti-dazzle particles. Seen from the direction from the low-reflection layer to the base material layer, the refractive indexes of all the layers are gradually increased. According to the anti-dazzle low-reflection optical film and the preparation method and application thereof, the optical film achieves high haze and low reflectivity and can be applied to a strong light environment.

The invention discloses a high-resilience eTPU foaming material and a preparation process thereof, and belongs to the technical field of foaming materials. The process comprises the steps of raw material premixing and TPU chain extension reaction, precursor system injection, in-situ phase change energy storage core-shell particle generation, supercritical two-fluid foaming and molding post-treatment. Wherein the SiO2-coated TiO2 core-shell particles are prepared by a non-hydrolytic sol-gel method, the porous SiO2 core adsorbs and fixes the micro-crosslinked polyurethane-based phase change material, the TiO2 shell provides sealing and supporting, the particles are combined with the TPU matrix through covalent bonds, and the micro-crosslinked polyurethane-based phase change material has a unique micro-crosslinked network structure, so that the thermal conductivity of the TPU matrix is improved, and the thermal conductivity of the TPU matrix is improved. The hidden danger of leakage of the phase change material in the using process can be effectively eliminated, and meanwhile the interface bonding effect between the inorganic particles and the TPU matrix is synchronously enhanced. The eTPU foaming material prepared by the invention has the characteristics of high resilience, strong interface bonding, excellent energy storage stability and low compression set, and is suitable for shoe materials, automotive interiors and other scenes.

A printed wiring board includes a first conductor layer, a resin insulating layer having an opening, a second conductor layer including a seed layer and an electrolytic plating layer formed on the seed layer, and a via conductor including the seed and electrolytic plating layers and connecting the first and second conductor layers. The seed layer has a first portion on the surface of the insulating layer, a second portion on an inner wall surface in the opening of the insulating layer, and a third portion on a portion of the first conductor layer exposed by the opening of the insulating layer such that the first portion is thicker than the second and third portions, and the insulating layer includes resin and inorganic particles including first particles forming the inner wall surface and second particles embedded in the insulating layer and having shapes different from shapes of the first particles.

The invention belongs to the technical field of high polymer materials, and particularly relates to a PET decorative film and a preparation method thereof. The preparation method comprises the following steps: synthesizing hydroxyl-terminated hyperbranched polyester by taking pentaerythritol and 2, 2-dimethylolpropionic acid as raw materials, and reacting with polyol glycidyl ether to prepare an epoxy-terminated organic modifier; silver-loaded nano silicon dioxide subjected to surface treatment by an amino silane coupling agent is used as inorganic functional particles; pET resin, an organic modifier and inorganic functional particles are subjected to melt blending and extrusion granulation, and modified PET is prepared; the modified PET is prepared into the film through a two-way stretching process. Epoxy groups of the organic modifier chemically react with amino groups at the tail end of a PET molecular chain and on the surfaces of inorganic particles respectively, a stable organic-inorganic hybrid network is constructed, synergistic improvement of reinforcement, toughening and long-acting antibiosis is achieved, and the technical problems that functional particles are not uniform in dispersion, interface bonding is weak, and antibacterial components are prone to migration are effectively solved.

The application provides a composite electrode active layer, an electrode sheet and a secondary battery. The composite electrode active layer comprises an active material layer and a composite insulation layer which are stacked in sequence, the composite insulation layer comprises inorganic particles, a heat-resistant polymer and a heat-sensitive polymer; the weight ratio of the inorganic particles, the heat-resistant polymer and the heat-sensitive polymer is (50-100):(1-10):(5-50); the melting temperature of the heat-resistant polymer is 180-450 DEG C; and the softening temperature of the heat-sensitive polymer is 80-120 DEG C. Through the design of the composite electrode active layer, the application realizes the low closed pore temperature and the high film breaking temperature, and further realizes the porous structure and the high-temperature resistance.

The invention provides a silicon wafer polishing solution, a silicon wafer polishing method thereof, a silicon wafer and a solar cell. The silicon wafer polishing solution comprises first inorganic particles, second inorganic particles, ammonium persulfate, sophorolipid and a solvent, the particle size of the first inorganic particles is smaller than that of the second inorganic particles, and the silicon wafer polishing solution is alkaline. Therefore, the silicon wafer can be polished in a mode of simultaneously carrying out chemical etching and mechanical grinding on the silicon wafer, the concave-convex height difference of line marks on the surface of the silicon wafer can be effectively reduced, even no obvious line marks penetrating through the silicon wafer exist, and then the surface flatness of the silicon wafer is improved; when a silicon wafer polished by the polishing solution is used for a perovskite / crystalline silicon laminated cell, the deposition quality of a thin film in the perovskite top cell can be effectively improved, and the overall efficiency of the cell is further improved.

The invention discloses a passive radiation-cold storage composite box body and a preparation method. The box body sequentially comprises a composite radiation film, a heat insulation layer and a cold storage layer from outside to inside. The outer-layer radiation film is composed of an elastic organic matrix and high-reflection inorganic particles such as barium sulfate, has high solar reflectivity and mid-infrared high emissivity, and can effectively restrain solar absorption and achieve radiation heat dissipation in the daytime. The heat insulation layer is made of XPS, EPS, aerogel felt and other low-heat-conduction materials so as to reduce external heat transfer. Phase change microcapsules are dispersed in the cold storage layer, and flake graphite and other high-thermal-conductivity fillers can be added to improve the cold transfer efficiency and temperature uniformity. And the phase-change material realizes automatic cold storage and cold release through a latent heat mechanism, so that the temperature in the box body is kept stable. Through the synergistic effect of radiation refrigeration, heat insulation and phase change cold storage, long-time and recyclable passive cold chain temperature control is achieved, and the device has the advantages of being simple and convenient in structure, high in cost performance, flexible in application, uniform in internal temperature distribution and the like.

The invention relates to the technical field of lithium ion batteries, in particular to a lithium ion battery diaphragm and a preparation method thereof, and particularly relates to a composite diaphragm which has a special microcosmic coating structure and can remarkably improve the mechanical strength and thermal stability of the diaphragm. The composite diaphragm comprises a porous polymer base membrane and a coating arranged on at least one surface of the base membrane, the coating comprises inorganic particles and carbon nanotubes, and more than 95% of the carbon nanotubes in the coating exist in a single form; the single carbon nano tube and the inorganic particles are mutually staggered and entangled in a three-dimensional space to form a continuous three-dimensional network structure.

An electrochemical device separator of the present invention comprises: a porous polymer substrate; and a coating layer which is provided on at least one surface of the porous polymer substrate and which includes inorganic particles, a polymer binder and a dispersant. The coating layer is formed of a coating layer composition, wherein the coating layer composition includes inorganic particles, a polymer binder and a dispersant, the dispersant including a maleic acid monomer.

The invention provides an anti-dazzle liquid and a preparation method thereof, and an anti-dazzle film and a preparation method thereof, and belongs to the technical field of optical films. The anti-dazzle liquid comprises micron inorganic particles of which the surfaces are modified with polar groups, UV curing resin with hydroxyl, a high-surface-tension active monomer and a polar solvent; wherein the surface tension of the high-surface-tension active monomer is greater than or equal to 35 dyne / cm. The anti-dazzle liquid is matched for use, the micron inorganic particles can be exposed and protrude out of the outer surface of the anti-dazzle layer after the anti-dazzle liquid is cured, and the high-surface-tension active monomer with the dyne value within the range can be matched with the polar groups for modifying the surfaces of the micron inorganic particles to improve the dyne value of the anti-dazzle layer formed by the anti-dazzle liquid; besides, the UV curing resin with hydroxyl groups can form bonding with polar groups modified on the surfaces of the micron inorganic particles through the hydroxyl groups, and the wear resistance of an anti-dazzle layer formed by the anti-dazzle liquid is improved, so that the anti-dazzle layer formed by the anti-dazzle liquid has high dyne value and friction resistance while having anti-dazzle performance.

A composite separator for a lithium secondary battery according to aspects of this disclosure comprises: a porous organic polymer substrate; a porous inorganic heat-resistant layer coated on at least one surface of the organic polymer substrate, the porous inorganic heat-resistant layer comprising inorganic particles and an organic binder polymer holding the inorganic particles together; and an organic polymer adhesive layer coated on the outer surface of the porous inorganic heat-resistant layer, the organic polymer adhesive layer comprising a vinylidene fluoride-based polymer, wherein the organic polymer adhesive layer further comprises a compound having ethylene oxide repeating units and double bonds at the ends.

The aim of the present invention is to provide a microporous multilayer separator and a secondary battery comprising same, the microporous multilayer separator having a low coating weight per unit area, a thin coating layer, and a low heat shrinkage rate, and thus having improved energy density and safety, thereby being suitable for use in a lithium-ion secondary battery. To this end, provided is a microporous multilayer separator, comprising: a polyolefin-based microporous membrane; and an inorganic coating layer which is applied on one side or both sides of the microporous membrane and in which two or more types of inorganic particles are bound by an organic binder, wherein the inorganic particles comprise first inorganic particles and second inorganic particles, wherein the first inorganic particles have an average diameter (D50) of 0.1-10.0 μm, and the second inorganic particles have an average diameter (D50) of 50 % or less of the average diameter (D50) of the first inorganic particles.

The present application discloses a functionalized separator, a method for preparing the same, a lithium metal battery, and a device comprising the lithium metal battery. The functionalized separator comprises a porous substrate and a functional film layer provided on at least one side of the porous substrate, wherein the functional film layer comprises inorganic particles which are able to reversibly react with metal lithium to form a lithium alloy.

The present disclosure relates to a separator for an electrochemical device and a method of manufacturing the same. Specifically, the separator according to one aspect of the present invention is prepared using electrospinning so as to have improved pore characteristics, and thus, when a separator prepared using electrospinning is used in an electrochemical device, electrochemical performance is improved. The separator for an electrochemical device according to the present invention comprises: a polymer composite membrane comprising polymer nanofibers and inorganic particles held together by the polymer nanofibers, wherein the polymer composite film includes a three-dimensional network structure formed of polymer nanofibers and a pore structure formed of gaps between the polymer nanofibers, the inorganic particles have a fracture toughness of 0.8 MPa.m1 / 2 or more, and the thickness of the polymer composite film is 15 [mu] m or less.

The present invention relates to a laminated film for a bifacial solar module and a solar module comprising same. In one embodiment, the laminated film for a bifacial solar module comprises a coating layer, a base layer, and a barrier layer, which are sequentially formed, wherein the coating layer has irregularities formed on the surface thereof and is formed from a coating composition, the coating composition comprising a siloxane-based binder containing a repeating structure of chemical formula 1, a fluorine-based (meth)acrylate compound, a curing agent, and inorganic particles: [Formula 1] (Formula 1 is as defined in the detailed description).

The invention provides a battery diaphragm and a secondary battery. The battery diaphragm comprises a base material layer and an inorganic coating arranged on at least one surface of the base material layer, the porosity of the base material layer is 48%-55%, the inorganic coating comprises inorganic particles, a heat-resistant bi-component binder and a diluent, the heat-resistant bi-component binder is selected from an acrylic resin emulsion and a silane coupling agent, and the diluent is selected from an acrylic resin emulsion and a silane coupling agent. The diluent is selected from at least one of polyurethane, polyvinyl alcohol or polyvinylpyrrolidone, in the inorganic coating, the mass fraction of the inorganic particles is W1, the mass fraction of the heat-resistant bi-component binder is W2, the mass fraction of the diluent is W3, W1 is larger than or equal to 90 and smaller than or equal to 97, W2 is larger than or equal to 2 and smaller than or equal to 8, and W3 is larger than or equal to 0.05 and smaller than or equal to 0.3. The battery diaphragm provided by the invention does not curl or warp in a high-temperature or low-humidity environment, and has small thermal shrinkage and high peel strength.

Provided in the present application are a composite electrode active layer, an electrode sheet and a secondary battery. The composite electrode active layer comprises an active material layer and a composite insulating layer which are stacked in sequence, wherein the composite insulating layer comprises inorganic particles, a heat-resistant polymer and a thermosensitive polymer; the weight ratio of the inorganic particles to the heat-resistant polymer to the thermosensitive polymer is (50-100):(1-10):(5-50); the melting temperature of the heat-resistant polymer is 180-450ºC; and the softening temperature of the thermosensitive polymer is 80-120ºC.

The present invention relates to a planar heating element comprising: a heating layer including graphene flakes, functionalized graphene and a nanohybrid material; and an electrode electrically connected to the heating layer, wherein the nanohybrid material has the functionalized graphene self-adsorbed on the surfaces of thermally conductive inorganic particles.

The present invention provides a method for evaluating a resin composition comprising a resin component and inorganic particles. This method includes determining the residue rate after filtering a mixture containing: a solvent; and a sample that contains the inorganic particles and the resin component.

According to this disclosure, a secondary battery and a method for manufacturing the secondary battery are provided to suppress the generation of springback in a wound electrode body with a specific external dimension. The secondary battery disclosed herein includes a flat wound electrode body and a battery casing housing the wound electrode body. The spacer (30) of the secondary battery has a strip-shaped substrate layer (32) and a surface layer (34) containing inorganic particles and a binder. Furthermore, at least one of the positive electrode plate (10) and the negative electrode plate (20) is bonded to the surface layer (34) of the spacer (30). In addition, the width dimension of the positive electrode active material layer (14) in the secondary battery (100) disclosed herein is 200 mm or more, the thickness dimension of the wound electrode body is 8 mm or more, and the height dimension of the wound electrode body is 120 mm or less. According to the technology disclosed herein, even when using a wound electrode body with such an external dimension that is prone to springback, the generation of springback can be appropriately suppressed.

Inorganic particles comprised in an aqueous dispersion according to the present invention consist of agglomerates of crystalline and amorphous microparticles, and exhibit spherical and smooth surfaces. The spherical appearance, low crystallinity, and narrow particle size distribution of the inorganic particles are further advantageous in reducing scratch defects in a CMP process. In addition, since the microparticles on the inorganic particle surfaces provide more active sites and thus the removal rate is high, the inorganic particles may be advantageous as next-generation CMP polishing materials. In addition, the aqueous dispersion according to the present invention further comprises an amino acid, and the amino acid may be adsorbed on a surface of a silicon oxide wafer to strengthen electrostatic attraction between the silicon oxide wafer and the inorganic particles, resulting in an effect of further improving the removal rate.

The invention relates to the technical field of polypropylene materials, and mainly relates to an anti-aging antifouling polypropylene material and a preparation method thereof. The invention discloses an anti-aging antifouling polypropylene material. Comprising the following raw materials in parts by weight: 90 to 110 parts of polypropylene, 5 to 15 parts of a PBO-POE core-shell structure polymer, 0.1 to 1 part of a hindered amine light stabilizer, 0.01 to 1 part of an antioxidant, 1 to 5 parts of polyethylene glycol methacrylate, 0.01 to 0.1 part of an initiator, 0.1 to 1 part of a coupling agent, 0.1 to 4 parts of nano inorganic particles, 0.01 to 0.5 part of tween-80 and 0.1 to 2 parts of a compatilizer. The anti-aging and anti-fouling polypropylene material provided by the invention has good mechanical properties and anti-aging and anti-fouling effects.

The invention discloses a sodium ion battery composite solid electrolyte and a preparation method thereof, the composite solid electrolyte comprises a polymer matrix, and solid oxide and solid sulfide inorganic particles are dispersed in the polymer matrix; the solid oxide is one or more than two of Na. Bi. TiO, Na < 3 > Zr < 2 > Si < 2 > PO12 and NYSO (NaYSiO) which are subjected to surface modification by a coupling agent; the solid sulfide is one or more than two of Na11Sn2PS12, Na3PS4 and Na3PS < 3.9 > Cl < 0.1 >; the polymer matrix is one or more than two of ethylene oxide, propylene oxide, 1, 3-dioxolame and glycidyl methacrylate. The sodium ion battery composite solid electrolyte has the characteristics of excellent safety, good interface compatibility and high conductivity.

Method for producing a thermally conductive film (10), comprising: a first step of forming a film or block by pressing and / or rolling a mixture of a binder resin (14) and a first thermally conductive filler (15) with shape anisotropy, which has a plate shape and a main surface thereof or a needle shape and a longitudinal direction thereof, such that the first thermally conductive filler (15) is oriented in a direction of the main surface of the film or block; a second step of hardening the binder resin (14) and then cutting the film or block in one direction of thickness to obtain mold filler pieces (12) such that the first thermally conductive filler (15) in each of them is oriented in the thickness direction of the corresponding mold filler pieces (12); and a third step of mixing the mold-filler pieces (12), a matrix resin (11) and a second thermally conductive filler (13), forming the mixture into a foil mold using pressure rollers, and then hardening the matrix resin (11); wherein the thermally conductive film (10) contains the first thermally conductive filler (15) with its main surface aligned in a thickness direction of the thermally conductive film (10), if the first thermally conductive filler (15) has a plate shape; or else wherein the thermally conductive film (10) contains the first thermally conductive filler (15) with its longitudinal direction aligned in the thickness direction of the thermally conductive film (10), if the first thermally conductive filler (15) has a needle shape, and wherein the matrix resin (11) and the binder resin (14) can be cured by an addition reaction using a platinum group metal catalyst, and wherein the second thermally conductive filler (13) consists of inorganic particles, and the inorganic particles are coated with an R(CH3) a Si(OR') 3-a expressed alkoxysilane compound are surface-treated, wherein R represents a substituted or unsubstituted organic group with 1 to 20 carbon atoms, R' represents an alkyl group with 1 to 4 carbon atoms, and a is 0 or 1.

Composite separators, methods for manufacturing the composite separators, and electrochemical devices including the composite separators are disclosed. In an embodiment, a composite separator includes a porous substrate, and a ceramic layer disposed on at least one surface of the substrate and including inorganic particles and a binder, wherein the binder includes carboxymethyl cellulose having a weight-average molecular weight in a range of 180,000 to 280,000 g / mol and a degree of substitution in a range of 0.6 to 1.2. The composite separator may exhibit excellent mechanical and thermal stability and ion conduction properties.

The present invention relates to a solid composite electrolyte comprising a) at least one fluoroelastomer and b) at least one sulfide-based solid ionic conducting inorganic particles that differs from a lithium salt, wherein a) the fluoroelastomer comprises recurring units derived from i) vinylidene difluorides and ii) from 15.0 to 80.0 mol % of at least one C2-C8 chloro and / or bromo and / or iodo fluoroolefin, the mol % being relative to the total moles of recurring units, wherein the solid composite electrolyte does not contain a lithium salt; to a slurry for manufacturing a solid composite electrolyte comprising a) a fluoroelastomer and b) a sulfide-based solid ionic conducting inorganic particle that differs from a lithium salt, and c) at least one non-aqueous solvent, wherein the slurry does not contain a lithium salt; and to a solid-state battery comprising a positive electrode, a negative electrode and a membrane, at least one among which comprises a solid composite electrolyte according to the present invention. The present invention also relates to a binder solution for a solid-state battery comprising a) at least one fluoroelastomer and c) at least one non-aqueous solvent.

The invention provides a high-dielectric / solvophobic synergistic artificial interface protective layer and a preparation method and application thereof. The protective layer sequentially comprises a high-dielectric composite matrix layer and a solvophobic surface layer from inside to outside, wherein the high-dielectric composite matrix layer contains 40-60 wt% of a solid electrolyte matrix, 10-25 wt% of a high-dielectric polymer, 20-30 wt% of high-dielectric inorganic particles and 5-10 wt% of a LiF stabilizing phase; the hydrophobic agent surface layer is made of Al2O3 / SiO2 nano-particles which are subjected to coupling modification by fluorosilane; the protective layer can realize lithium metal negative electrode side electric field homogenization and interface chemical passivation, induce lithium ions to uniformly deposit from bottom to top, and inhibit electrolyte side reaction and H2S release at the same time, when the protective layer is applied to a lithium metal battery, the lithium metal battery can stably circulate for more than or equal to 500h under 0.5-1.0 mA * cm <-2 >, and the 100-time circulation capacity retention rate of the all-solid-state battery is more than or equal to 93%.

Provided is a wavelength conversion member manufacturing method and a wavelength conversion member including a sintered body having improved light-tightness of a surface other than a light incident surface and a light exit surface. A wavelength conversion member manufacturing method including a sintered body having a light incident surface, a light exit surface, and a light reflection surface different from the light incident surface and the light exit surface includes: a sintered body preparation step of preparing a sintered body including inorganic particle and phosphor particle; and a recess formation step of performing acid treatment on the sintered body to form a plurality of recesses in the light reflection surface of the sintered body.

An optical multilayer structure including a substrate; a shatterproof layer which is formed on at least one surface of the substrate and includes a polyimide film including a polyimide precursor, a polyimide, or a combination thereof including a structure of the following Chemical Formula 1, and inorganic particles; and a hard coating layer formed on the other surface of the substrate:wherein R1 and R2 are independently of each other C1-5 alkyl which is unsubstituted or substituted with one or more halogens; R3 and R4 are independently of each other C6-10 aryl which is unsubstituted or substituted with one or more halogens; L1 and L2 are independently of each other C1-10 alkylene; and x and y are independently of each other an integer of 1 or more.