2154 results about "Inorganic particles" patented technology

An E-stone based artificial marble according to an exemplary embodiment of the present invention is formed of inorganic particles, inorganic powder, and a resin, wherein the resin is an E-stone based composition including a liquid resin and a solid powder resin or a cured product thereof.

The invention provides a secondary battery and a preparation method and device thereof, and the secondary battery comprises a positive pole piece, a negative pole piece, a solid electrolyte, a first modification layer and a second modification layer. One of the first modification layer and the second modification layer is located between the positive pole piece and the solid electrolyte, and the other one of the first modification layer and the second modification layer is located between the negative pole piece and the solid electrolyte; the first modification layer and / or the second modification layer comprises 20 wt%-60 wt% of polymer, 10 wt%-65 wt% of lithium salt and 2 wt%-45 wt% of inorganic particles. The thickness of the first modification layer and / or the second modification layer is relatively thin, easy to control and relatively good in uniformity, so that the interface resistance between the positive pole piece and / or the negative pole piece in the secondary battery and the solid electrolyte is remarkably reduced, the side reaction between the solid electrolyte and the positive pole piece and / or the negative pole piece is avoided, and the service life of the secondary battery is prolonged. And the first modification layer and / or the second modification layer have / has good thermal stability, so that the cycle performance of the secondary battery can be improved.

The invention relates to the technical field of batteries, in particular to a battery. Comprising a positive plate and electrolyte, the positive plate comprises a positive current collector and a coating positioned on the surface edge of at least one side of the positive current collector along the length direction; the coating comprises filling particles, and the filling particles comprise at least one of inorganic particles and nitrogen-containing particles; the electrolyte comprises non-fluorinated cyclic carbonate and fluorinated ethyl acetate; the non-fluorinated cyclic carbonate comprises propylene carbonate and optional ethylene carbonate; on the basis of the total mass of the electrolyte, the content ratio C1 of the non-fluorinated cyclic carbonate is smaller than or equal to 25%, the content ratio C11 of the propylene carbonate is 3.1%-24.9%, the content ratio C12 of the ethylene carbonate is 0%-5%, and the content ratio C2 of the fluorinated ethyl acetate is 20.2%-70%. The battery provided by the invention can improve the problem of lithium precipitation under low-temperature discharge, and has relatively good short-circuit safety performance and relatively low high-temperature gas production rate.

The present invention provides a lightweight and thin thermal insulating / flame barrier sheet that is used between cells within a battery pack where battery cells are connected and stacked in series or parallel. This thermal insulating / flame barrier sheet has a thickness of 3 mm or less, and is obtained by papermaking process using a suspension containing 25 to 70% by weight of a silica-based inorganic fiber having a hydroxyl group; 2 to 25% by weight of a glass fiber; 5 to 40% by weight of a fibrous mineral; 3 to 20% by weight of a binder; and 0 to 45% by weight of a thermal insulating inorganic particle. The thermal insulating inorganic particle includes a hydrophilized aerogel particle obtained by treating the surfaces of hydrophobic aerogel particle having a porosity of 80% or more and an average particle size of 5 to 200 µm, with a hydrophilizing agent.

The invention provides an electrochemical device and an electronic device, the electrochemical device comprises a positive pole piece, the positive pole piece comprises a positive current collector, a first coating and a positive material layer, the first coating is arranged on the surface of the positive current collector, and the positive material layer is arranged on the surface, away from the positive current collector, of the first coating; the first coating comprises inorganic particles, and the inorganic particles comprise at least one of nano boehmite, aluminum oxide, titanium dioxide, magnesium oxide, zirconium oxide or zinc oxide; the positive electrode material layer comprises a first conductive agent, and the first conductive agent comprises a first carbon nanotube; the length of the first carbon nanotube is 2-5 [mu] m, and the diameter of the first carbon nanotube is 2-100 nm; and the ion transference number of the positive electrode material layer is 0.4-0.47. The electrochemical device provided by the invention can consider the nail penetrating safety performance, the low-temperature cycle performance and the quick charging performance.

The invention discloses a transparent radiation refrigeration film and radiation refrigeration ceramic for building heat management and a preparation method of the transparent radiation refrigeration film and the radiation refrigeration ceramic. According to the film and the ceramic, SiO2 nano-particles are selected as base materials for achieving radiation refrigeration, dendritic silicon oxide nano-particles are adopted as inorganic particle emission materials of the film, PDMS is adopted as a polymer matrix, ITO coating PET is adopted as a flexible substrate, DMSNs are dispersed in PDMS, and the film is formed on the ITO-PET substrate through a blade coating technology. The white or colored ceramic takes spherical SiO2 nano-particles as a radiation refrigeration material and is sintered into white SiO2 porous ceramic, namely white radiation refrigeration ceramic, through phase inversion, and then the white radiation refrigeration ceramic is colored through chemical dye to form the colored ceramic. The radiation refrigeration film is good in transparency and bright in ceramic color, both the radiation refrigeration film and the ceramic have excellent radiation refrigeration performance, the transparent film can achieve the indoor cooling effect of about 12 DEG C on sunny days, and the colored ceramic can achieve the cooling effect of about 5 DEG C on sunny days.

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 invention provides a secondary battery and an electronic device. The secondary battery comprises a positive pole piece, a negative pole piece, electrolyte and an isolating membrane arranged between the positive pole piece and the negative pole piece. The separator film includes a base film and an inorganic coating layer on opposite surfaces of the base film. The inorganic coating includes a plurality of inorganic particles. Dv99 of the inorganic particles is A, and the unit is [mu] m. And the porosity of the base membrane is B%. Wherein the ratio B / A of B to A is greater than or equal to 1.25 and less than or equal to 40. And the electrolyte comprises propyl propionate. Based on the total mass of the electrolyte, the mass percentage content of propyl propionate is C%, and C is more than or equal to 20 and less than or equal to 45. Through the special design of the isolating membrane and the matching of the content control of the propyl propionate in the electrolyte, the secondary battery has low impedance and high safety performance under high-temperature and high-rate charge and discharge, and can effectively prevent overcharge and improve the cycle performance of the secondary battery.

The invention discloses a silane cross-linked polyolefin halogen-free flame-retardant cable material and a low-energy-consumption preparation method thereof.The preparation method comprises the steps that EVA / EEA serves as a matrix, silane groups are covalently connected to a polyolefin molecular chain through a free radical grafting reaction, and a grafting material containing an active silane side group is prepared; meanwhile, vinyl isocyanate is adopted to chemically modify hydroxyl on the surface of magnesium hydroxide, vinyl is grafted to the surfaces of particles, the polarity of the particles is reduced, and the dispersity of the particles is enhanced; then carrying out melt blending on the grafted material and modified magnesium hydroxide, constructing an interface bridge by using an anhydride group, and shortening the two-phase distance; finally, through room-temperature natural cross-linking and warm water auxiliary cross-linking, silane groups are promoted to be hydrolyzed into silanol, the silanol is condensed to form a-Si-O-Si-three-dimensional network, meanwhile, vinyl on the surface of magnesium hydroxide and a polyolefin matrix are subjected to free radical copolymerization, and a covalent bond interface layer is formed between inorganic particles and an organic matrix. According to the method, the synergistic improvement of high crosslinking degree, strong stretchability and excellent flame retardance of the cable material is realized through molecular-level interface regulation and cross-linking network optimization.

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 relates to the technical field of air purification, and discloses an air purification adsorption device for a photogravure press, the air purification adsorption device comprises a waste gas treatment tank, the bottom end of the waste gas treatment tank is rotatably connected with a main shaft, and the circumferential surface of the main shaft is fixedly connected with an activated carbon filter plate; an inorganic filtering device for filtering inorganic particles is arranged in the waste gas treatment tank, and an organic desorption device for heating, desorbing and recycling organic matters is arranged on the outer side of the waste gas treatment tank. The activated carbon filter plate rotates to increase the contact area with the desorption agent, so that the desorption effect is improved, the desorption agent in the scattering cavity is intermittently scattered, the situation that the desorption agent cannot be uniformly and comprehensively scattered on the activated carbon filter plate due to the fact that the desorption agent is quickly scattered is prevented, and the desorption efficiency is improved after the activated carbon filter plate is in uniform contact with the desorption agent.

The invention discloses a preparation method of a plugging type filtrate reducer used in a high-temperature drilling fluid, and the method comprises the following steps: carrying out first mixing on biomass and water to obtain a first suspension; carrying out second mixing on the first suspension liquid and nano inorganic particles to obtain a second suspension liquid; carrying out hydrothermal carbonization reaction on the second suspension to obtain a first reaction product; and cleaning, drying and crushing the first reaction product to obtain the filtrate reducer. Compared with the traditional filtrate reducer, the ultrahigh-temperature micro-nano plugging filtrate reducer for the water-based drilling fluid provided by the invention cannot be degraded and damaged at high temperature, and the filter loss of the drilling fluid before and after ultrahigh-temperature action is effectively controlled. The high-temperature-resistant fluid loss additive has excellent fluid loss control performance at high temperature, can effectively control the fluid loss additive of the water-based drilling fluid, can resist the temperature of 220 DEG C, and has the fluid loss reduction rate of 60%. Meanwhile, the raw materials are wide in source, low in cost and good in environmental protection performance.

To provide a heat transfer suppression sheet that can further suppress the propagation of heat between battery cells in the event of an abnormality and suppress the destruction of the battery case and the deterioration of battery performance due to deformation of the battery cells, and to provide a battery pack that can suppress the destruction of the battery case and the deterioration of battery performance while suppressing the propagation of heat between the battery cells, and that is easy to design and assemble.SOLUTION: A heat transfer suppression sheet 50 has: an insulating material 10 having inorganic particles 4 and organic fibres 1 or inorganic fibres 15; and an elastic sheet 51 laminated on at least one of a first surface 10a and a second surface 10b that are perpendicular to the thickness direction of the insulating material 10. In addition, a battery pack 100 has a plurality of battery cells 20a, 20b, 20c and the heat transfer suppression sheet 50. The plurality of battery cells 20a, 20b, 20c are connected in series or in parallel.SELECTED DRAWING: Figure 1A

To provide a method for producing a heat transfer suppression sheet that can provide strength to retain a shape of a heat transfer suppression sheet and that can provide a high inorganic particle retention performance, thereby maintaining an excellent heat insulation performance. The method for producing a heat transfer suppression sheet includes a processing step of processing, by a dry method, a mixture containing an inorganic particle (4) and a binder fiber (3) having a core-sheath structure into a sheet. The binder fiber (3) having a core-sheath structure includes a core portion (1) extending in a longitudinal direction, and a sheath portion (2) formed to cover an outer peripheral surface of the core portion (1). A melting point of a first organic material constituting the core portion (1) is higher than a melting point of a second organic material (7) constituting the sheath portion (2).

The invention discloses a composite insulating arm surface repairing material and a repairing method, and the repairing material comprises the following raw material components in parts by weight: 100 parts of matrix resin, 0.8-4 parts of a curing agent, 0.2-1.2 parts of an accelerant, 5-20 parts of color paste, 10-25 parts of inorganic particles, and 10-25 parts of inorganic fibers. The repairing material is simple in preparation method and convenient to use, according to the repairing method, the repairing material is used for replacing gel coat spraying repairing, the operation difficulty is low, the repairing duration is shortened, the repairing efficiency is improved, and all technical indexes of the repaired insulating arm component can meet the use requirements.

A separator for a lithium battery having (a) a porous polymeric layer, such as a polyethylene layer; and (b) a nanoporous inorganic particle / polymer layer on both sides of the polymeric layer, the nanoporous layer having an inorganic oxide and one or more polymers; the volume fraction of the polymers in the nanoporous layer is about 15% to about 50%, and the crystallite size of the inorganic oxide is 5 nm to 90 nm.

The invention discloses an environment-friendly nano antibacterial PE (polyethylene) wood-plastic plate, which is prepared from wood flour, silane modified PE gel, glass fiber powder, nano cellulose, borax, acrylate resin and PE wax. According to the invention, through chemical bond connection between the silane modified PE gel and inorganic particles such as the glass fiber powder and the nano cellulose, and a toughening effect of the acrylate resin, mechanical properties such as tensile strength, bending strength and impact strength of the plate are greatly improved; through use of high-crystallinity nano-crystalline cellulose and modified wood flour, the hydrophobicity of the material is improved, meanwhile, due to the fracture and repair mechanism of boric acid ester bonds, the network structure is compact, water is difficult to permeate into a cross-linked network of PE / wood flour, and thus the water resistance of the board is improved; phosphonic acid and quaternary phosphonium salt ionic liquid in the silane modified PE gel have lasting antibacterial property; and the balance of water permeability and waterproofness is realized through a process of combining cross-linked gel, evaporation hole making and hot press molding.

The present invention relates to a modified inorganic particle doped water-based paint and a preparation method thereof, belonging to the technical field of water-based paint. The raw materials for preparing the water-based paint include, by weight, 35-50 parts of water-based acrylic resin, 5-10 parts of modified inorganic particles, 8-12 parts of polyvinyl alcohol, 0.1-0.5 parts of defoaming agent, and 0.1-0.5 parts of dispersant; the modified inorganic particles are obtained by mixing nano titanium dioxide flame retardant particles, organic acid and biomass and then subjecting them to hydrothermal treatment, and the nano titanium dioxide flame retardant particles are obtained by subjecting polyimide particles and nano titanium dioxide particles to thermal treatment. The modified inorganic particles proposed by the present invention have good dispersibility and strong interaction force with the water-based paint matrix. Nano titanium dioxide is used instead of nano alumina, applied to water-based paint, and the flame retardancy of the water-based paint is increased. Organic acid, biomass powder and nano titanium dioxide flame retardant particles are used for hydrothermal treatment to increase the antibacterial durability of the water-based paint.

To provide a separator for a non-aqueous secondary battery which is excellent in thermal dimensional stability and adhesion to an electrode, and improves battery cycle characteristics and impact resistance.SOLUTION: A separator for a non-aqueous secondary battery includes a porous base material, a heat-resistant layer which is arranged on one side or both sides of the porous base material, and contains inorganic particles and a binder resin, and an adhesive layer which is arranged on one side or both sides of the laminate of the porous base material and the heat-resistant layer, and contains a polyvinylidene fluoride-based resin, wherein the mass ratio of the inorganic particles in the heat-resistant layer is 95 mass% or more, the average primary particle diameter of the inorganic particles contained in the heat-resistant layer is 0.01 μm to 0.30 μm, and the adhesive layer has a porous structure such that fibrils containing the polyvinylidene fluoride-based resin are connected to each other in three-dimensional meshes.SELECTED DRAWING: Figure 1

The inorganic particle according to the present invention is composed of aggregation of crystalline and amorphous small particles and has a spherical and smooth surface. The spherical appearance, low crystallinity and narrow particle size distribution of inorganic particle are more advantageous in reducing scratch defects in the CMP process. In addition, since the small particles on the surface of the inorganic particle provide more active sites, the inorganic particle has an excellent removal rate, so it is advantageous as a next-generation CMP abrasive.

The present disclosure relates to a separator, an electrode assembly including the same, and an electrochemical device, and the separator according to one embodiment of the present disclosure comprises a porous substrate and a porous coating layer on each of both surfaces of the porous substrate, the porous coating layer comprising inorganic particles, in which a total thickness of the separator remains constant throughout the separator, wherein an aspect ratio of the separator is 1 or more, and wherein an interface between each of the porous coating layers and the porous substrate has a curved shape protruding toward the porous substrate based on a width direction of the separator.

Provided are an all-solid-state secondary battery and a method for manufacturing the all-solid-state secondary battery, the all-solid-state secondary battery having a battery element member including one or more groups of battery cells in which at least a negative electrode active material layer, a solid electrolyte layer, and a positive electrode active material layer are laminated in this order, wherein the battery element member has, at an end portion thereof, an insulating coating body that coats at least a side surface of the battery element member, and the insulating coating body is configured from a mixture of a resin material that melts in a temperature region of 300 DEG C or less and insulating inorganic particles that do not melt at 350 DEG C; the method for manufacturing the all-solid-state secondary battery includes: a step for disposing a mixture of a resin material that melts in a temperature region of 300 DEG C or less and insulating inorganic particles that do not melt at 350 DEG C at an end portion of the battery element member; and a step for heating the mixture at a temperature at which the resin material melts and pressurizing the mixture toward the inside of the battery element member.

Electrochemical devices are disclosed for various applications such as secondary batteries. In an embodiment, an electrochemical device includes a positive electrode, a negative electrode, a separator, and an electrolyte. The separator includes a porous separator including inorganic fibers or including inorganic particles and a polymer binder, and the electrolyte includes a nitrile-based compound. The electrochemical device exhibits high ionic conductivity by including the porous separator having wettability to the electrolyte.

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.

The invention relates to the technical field of radiation refrigeration materials, in particular to a polyimide fiber membrane for radiation refrigeration and a preparation method and application thereof. The polyimide fiber membrane for radiation refrigeration comprises polyimide-containing resin and inorganic particles, the polyimide-containing resin is prepared from diamine and dianhydride, the diamine is selected from a combination of diamine A and other diamines, and the diamine A comprises at least one of 4-aminobenzene-2, 5-pyridine diamine and 4, 4 '-diaminodiphenylamine; the dianhydride at least comprises dianhydride B, and the dianhydride B is selected from at least one of 1, 2, 4, 5-hydrogenated pyromellitic dianhydride, 3, 3 ', 4, 4'-dicyclohexyltetracarboxylic dianhydride and 4, 4 '-(hexafluoroisopropylidene) diphthalic anhydride. The invention has the advantages of high whiteness, high temperature resistance, ultraviolet resistance, high relative refractive index and higher infrared absorptivity.

Provided is an inorganic particle-dispersed slurry composition which has excellent storage stability and printability, is capable of promoting a debinding treatment even at low temperatures, is capable of suppressing oxidation of inorganic particles, has little residual carbon after firing, has excellent sinterability, and is capable of obtaining a highly reliable electronic component. Also provided is a method for producing an inorganic sintered body using the slurry composition. The present invention is an inorganic particle dispersed slurry composition containing a binder resin (A), inorganic particles (B), and a solvent (C), and further containing a carboxylic acid anhydride having a boiling point of 200 DEG C or more and an oxygen atom content of 40 wt% or more as a debinder aid (D).

A photopolymerizable compound (A) and inorganic particles (B), and exhibiting good curability in a case that an initiator is added; a photosensitive composition including a photopolymerizable compound (A), inorganic particles (B), and an initiator (C), and exhibiting good curability; and a cured product of the photosensitive composition are provided. A compound having a specific structure including a radically polymerizable group-containing group is used as a photopolymerizable compound (A) in a composition including the photopolymerizable compound (A) and metal oxide particles (B), or a photosensitive composition including the photopolymerizable compound (A), metal oxide particles (B), and an initiator.

The invention provides a positive pole piece, an electrochemical device and an electronic device, the positive pole piece comprises a positive current collector, a first coating and a positive material layer, the first coating is arranged on the surface of the positive current collector, the positive material layer is arranged on the surface, away from the positive current collector, of the first coating, and the first coating comprises inorganic particles and a first binder, the inorganic particles have a Dv50 of 50 nm to 500 nm, and the first coating layer has a thickness of 0.2 [mu] m to 2 [mu] m. The safety performance and the cycle performance of the electrochemical device can be improved.

This separator for a nonaqueous secondary battery is provided with: a porous base material; and an adhesive porous layer that is disposed on one or both surfaces of the porous base material and that contains polyvinyl chloride-based resin and inorganic particles.

Provided herein are ionically conductive solid-state compositions that include ionically conductive inorganic particles in a matrix of an organic material. The resulting composite material has high ionic conductivity and mechanical properties that facilitate processing. In particular embodiments, the ionically conductive solid-state compositions are compliant and may be cast as films. In some embodiments of the present invention, solid-state electrolytes including the ionically conductive solid-state compositions are provided. In some embodiments of the present invention, electrodes including the ionically conductive solid-state compositions are provided. The present invention further includes embodiments that are directed to methods of manufacturing the ionically conductive solid-state compositions and batteries incorporating the ionically conductive solid-state compositions.