418 results about "Filler particle" patented technology

The invention belongs to the field of electrode paste preparation, and provides low-temperature curing silver-coated copper paste for a heterojunction solar cell and a preparation method of the low-temperature curing silver-coated copper paste. Ethyl cellulose is adopted as a matrix material, a stable matrix network is provided for slurry through good cohesiveness and dispersity of ethyl cellulose, and a network structure with a high crosslinking degree is formed by adding modified phenolic resin, organic silicon modified epoxy acrylate and other chemical modification materials into the slurry. The mechanical strength and adhesive force of the slurry are further enhanced, surface modification is carried out on inorganic filler such as silver-coated copper powder and bismuth oxide through a silane coupling agent and a titanate coupling agent, and the interface bonding force between the filler and an organic matrix is enhanced through silicon-oxygen bonds formed on the surface of the filler; by adding the carboxylated polyamide wax and the organic bentonite, the agglomeration tendency of the filler is reduced by utilizing the adsorption and electrostatic repulsion effects of the carboxylated polyamide wax and the organic bentonite on filler particles, and the obtained conductive slurry has the characteristics of excellent conductivity and low-temperature rapid curing.

Provided are a coating composition, a separator, an electrochemical device, and an electronic device, the coating composition including a fiber material, filler particles, and a binder, the fiber material including at least one of a first inorganic ceramic or a first organic matter containing a miscellaneous element, the fiber material comprises at least one of a first inorganic ceramic and a second organic matter containing a hetero-element, the filler particles comprise at least one of a second inorganic ceramic and a second organic matter containing a hetero-element, at least one of the fiber material and the filler particles is an organic matter containing a hetero-element, the hetero-element comprises a nitrogen element or / and a phosphorus element, and the mass percentage of the hetero-element is 10%-60% based on the mass of the coating composition. When the coating composition is applied to the diaphragm, the diaphragm is coated with the coating composition to form a coating, so that the thermal safety and high-temperature cycle performance of the electrochemical device are improved.

The invention provides a method for increasing the content and distribution uniformity of filler in paper sheets and increasing the strength of the paper sheets, and belongs to the technical field of papermaking. The method for improving the content and distribution uniformity of the filler in the paper sheet and increasing the strength of the paper sheet comprises the following steps: preparing a modified composite nanofiber dispersion liquid, preparing a positive electric buffer solution, preparing a positive electric composite slow release solution, preparing a filler particle suspension liquid, and mixing and manufacturing paper with pulp. According to the method for improving the content and the distribution uniformity of the filler in the paper sheet and improving the strength of the paper sheet, the flocculation speed of the filler can be mildly and effectively controlled, the size of floccules can be controllably adjusted, the distribution uniformity of the filler in the paper sheet can be improved while the content of the filler in the paper sheet is improved, and the paper sheet strength is improved. The adverse effect on the mechanical property of the paper sheet caused by filler dosage increase is effectively avoided, and the paper sheet strength is further improved.

A thermal interface material that conducts heat is disclosed. The thermal interface includes a bulk layer and at least one adhesive layer. The bulk layer includes a first acrylic rubber, plasticizer particles, and first filler particles, and the first filler particles are substantially aligned in a first direction. The first adhesive layer is disposed on a first side of the bulk material. The first adhesive layer has a greater tackiness than the bulk material. The first adhesive layer comprises a second acrylic rubber. The first direction is substantially perpendicular to a first surface of the first side on which the first adhesive layer is disposed.

The invention belongs to the technical field of ablation-resistant polymer-based composite materials, and particularly relates to an ablation-resistant modified sugar-based carbon fiber composite material and a preparation method thereof.The preparation method comprises the following steps that S1, carbon black filler particles are subjected to surface modification treatment; s2, preparing a glycosyl dipping solution; s3, impregnating the carbon fiber preform in a glycosyl impregnation solution in a vacuum environment, and performing pressure maintaining treatment to obtain a pre-impregnated carbon fiber preform; s4, performing gelatinization treatment on sweet water of the pre-impregnated carbon fiber preform in a vacuum drying oven to obtain a gelatinized carbon fiber preform; s5, performing two-stage low-temperature stabilization treatment on the gelatinized carbon fiber preform in a vacuum drying oven to obtain a stabilized carbon fiber preform; and step S6, performing high-temperature normal-pressure carbonization treatment on the stabilized carbon fiber preform in a protective atmosphere to obtain the ablation-resistant modified glycosyl carbon fiber composite material.

The invention belongs to the technical field of ethanol recovery, and relates to a preparation method of a tubular ceramic carrier-based C-ZIF-67 derived nano-porous carbon doped PDMS mixed matrix membrane and an application of the membrane in recovery of ethanol by pervaporation of a low-concentration ethanol aqueous solution. Comprising the following steps: synthesizing a ZIF-67 crystal, and carbonizing the ZIF-67 crystal to obtain C-ZIF-67 filler particles; the ZIF-67-derived nano-porous carbon particles are prepared through a high-temperature calcination method, the particles are fully carbonized at a certain calcination temperature, disappearance of characteristic groups after carbonization can reduce the influence of surface electrical properties of the particles, and the size shrinkage of the particles is reduced, so that the dispersity of the particles in a matrix membrane is improved; meanwhile, the MOF skeleton structure is still reserved after carbonization, the pore diameter is increased, the carbon material also has strong hydrophobicity, the hydrophobic large-pore-diameter separation pore channels are more beneficial to passing of ethanol molecules and promotion of the separation effect, the separation factor and the total flux are almost kept unchanged after long-time operation and use, and excellent performance is shown; good application prospects are realized.

Disclosed are exemplary methods for rheologically controlling a metal amalgam by including non-refractory filler particles (e.g., non-refractory metal filler particles, etc.) for processing and reliability enhancement as a thermal interface material. An exemplary method may comprise rheologically controlling a metal amalgam including filler particles (e.g., non-refractory metal filler particles, etc.) for use as a thermal interface material without sacrificing thermal conductivity and while maintaining rheology and spread control (e.g., limiting or preventing material migration, etc.) when pressed between two substrates. An exemplary method may comprise using non-refractory (not corrosive resistant) filler particles (e.g., non-refractory metal filler particles, etc.) to achieve a stable homogenous metal amalgam suspension with viscosity control based on total filler particle loading without sacrificing thermal performance for thermal interface material applications. The rheology controlled metal amalgam may be used as a thermal interface material between a heat source and another component of an electronic device.

The invention discloses a high-performance conductive adhesive doped with conductive nanoparticles, and belongs to the technical field of conductive adhesives. The high-performance conductive adhesive provided by the invention is prepared from the following raw materials in parts by weight: 50 to 100 parts of vinyl liquid silicone rubber, 100 to 400 parts of modified silver coated copper powder, 1 to 10 parts of nano silver powder I, 1 to 10 parts of epoxy silane modified prepolymer, 3 to 30 parts of hydrogen-containing silicone oil, 0.1 to 5 parts of platinum catalyst and 0.05 to 1 part of inhibitor. The silver-coated copper powder and the epoxy silane are modified, so that the conductivity and the binding power of the conductive adhesive are greatly improved, and the epoxy silane modified prepolymer can form strong covalent bond combination with the surface of an adhered object through a high-density epoxy group of the epoxy silane modified prepolymer; the nano-silver bulges on the surface of the modified silver coated copper powder increase the effective contact area and the number of contact points among the conductive filler particles, so that the conductive adhesive has the characteristics of high conductivity, low resistance, high adhesive strength and strong toughness.

The invention discloses an anti-corrosion and anti-rust water paint slurry preparation device and a use method thereof, and relates to the technical field of dispersion tanks, the anti-corrosion and anti-rust water paint slurry preparation device comprises a tank body, a cover body is detachably mounted at the top of the tank body, a center shaft is coaxially and rotatably arranged in the tank body, and a filter cover sleeves the center shaft; the filter cover and the central shaft are fixedly connected through a plurality of fixing rods, a mounting frame is fixedly mounted on the cover body, a plurality of crushing assemblies are longitudinally mounted on the mounting frame and are distributed around the circumference of the central shaft in an array mode, magnets are arranged on the outer wall of the central shaft and the side, opposite to the filter cover, of the central shaft, and the magnets are arranged on the outer wall of the central shaft and the side, opposite to the filter cover, of the filter cover. And when the central shaft rotates to drive the filter cover to rotate, the crushing assembly generates vibration. The crushing assembly is attracted through the magnetic force of the magnet, so that the crushing assembly is bent and deformed, when the center shaft rotates at a high speed, the crushing assembly generates high-frequency vibration, and then filler particles located in the filter cover are crushed.

The invention relates to a comprehensive optimization method and system for thermal conductive plastic performance in the technical field of new materials, and the method comprises the following steps: obtaining initial dispersion state data of an inorganic filler in thermal conductive plastic, and analyzing spatial distribution of filler particles through a scanning electron microscope to obtain characteristic parameters of random distribution of the filler; according to the characteristic parameters of the random distribution of the filler, calculating the heat transfer efficiency among filler particles by adopting a finite element simulation method, and determining the distribution rule of the phonon scattering phenomenon; according to the improved interface bonding strength parameters, the Monte Carlo method is adopted to simulate orientation distribution of filler particles in a matrix, and a preliminary scheme of filler orientation control is obtained; for optimization parameters of complex mold forming, a particle swarm optimization algorithm is adopted to adjust the filler proportion and distribution, and the structure configuration of the efficient three-dimensional heat conduction network is generated; and according to the structure configuration of the efficient three-dimensional heat-conducting network, the improvement degree of the heat-conducting plastic performance is analyzed and verified through a heat-conducting finite element, and final heat transfer efficiency data is obtained.

The present invention is a composition comprising: a) a compound of Formula 1, where each n is 1, 2 or 3; b) a divinyl-terminated poly(di-C1-C6-alkyl)siloxane; c) an organohydrogenpolysiloxane; d) thermally conductive filler particles; e) a first filler treating agent which is a trimethoxysilyl-terminated polydimethylsiloxane; f) a second filler treating agent which is a C6-C20-alkyltrimethoxysilane; and g) a platinum catalyst. The composition of the present invention is useful as a thermally conductive material.

The present invention relates to the technical field of thermally conductive polyester films, and specifically to a flexible high thermal conductivity graphene-filled polyurethane composite film and a preparation method thereof. Conventional graphene-modified polyurethane thermally conductive films have good horizontal thermal conductivity, but poor vertical thermal conductivity. In view of the above problems, the present invention provides a flexible high thermal conductivity graphene-filled polyurethane composite film, wherein the material system contains graphene, carbon quantum dots and a one-dimensional film-forming agent at the same time, and the graphene, carbon quantum dots and the one-dimensional film-forming agent are interconnected, interspersed and stacked to form a complex three-dimensional network structure, and the filler particles are distributed more evenly and densely in the polyurethane resin matrix, which significantly improves the thermal conductivity of the obtained flexible high thermal conductivity graphene-filled polyurethane composite film.

A static dissipative single use glove having a vertical resistivity of less than about 108 Ohm when determined according to EN 1149-2 and surface resistivity of less than or equal to about 106 Ohm when determined according to EN 1149-1, which includes a polymeric layer comprising conductive filler particles. A method to produce the single use glove is also disclosed.

The invention relates to the technical field of batteries, in particular to a composite diaphragm, a preparation method thereof and a secondary battery. The composite diaphragm comprises a base membrane, a first coating arranged on the surface of at least one side of the base membrane and a second coating arranged on at least part of the surface of the first coating, the first coating comprises filler particles and composite particles, the filler particles are stacked to form a filler layer, and the composite particles are embedded into the filler layer and form protrusions on the surface of the filler layer; the composite particles comprise primary particles of a first polymer and secondary particles formed by co-agglomeration of ceramics; the second coating comprises polymer particles; the polymer particles comprise second polymer primary particles; the height h of the composite particles protruding out of the second coating on the filler layer satisfies 1 [mu] m < = h < = 4.9 [mu] m. The diaphragm and an electrode plate are good in adhesion, enough space is provided for storage of electrolyte, ion conduction is not affected, lithium separation of the battery is not prone to occurring, and the cycle performance and the energy density of the battery are improved.

The invention discloses a super-smooth anticorrosive coating for an overhead transmission conductor and a preparation method and application thereof.The super-smooth anticorrosive coating for the overhead transmission conductor is prepared from, by mass, 25-50 parts of polyvinyl fluoride resin, 12-50 parts of epoxy resin, 5-10 parts of butyl acetate, 5-10 parts of graphite fluoride, 5-8 parts of molybdenum disulfide, 5-20 parts of superfine aluminum oxide and 6-25 parts of zinc powder. And 1-12.5 parts of zinc phosphate. Surface modification and dynamic coating are carried out on the super-smooth filler particles, so that a layer of chemical inert film is formed on the surface of the filler, and the friction force between the particles and between the particles and a matrix is reduced. Meanwhile, a multi-stage dispersion technology is adopted, low-speed stirring is firstly carried out for primary mixing, and then gradual speed increasing is combined with ultrasonic treatment, so that aggregates of the filler can be fully destroyed, and a stable dispersion state is formed. The treatment can form a highly uniform super-lubricity network structure, improve the interface bonding between the filler and the matrix resin, reduce micropores in the coating and reduce the friction coefficient of the coating, so that the coating shows super-lubricity. And through ultrasonic oscillation treatment, preservative particles reach the nanoscale, the surface area and chemical activity of the particles are increased, the particles and matrix resin form more stable combination, and the anticorrosive effect of the coating is effectively improved.

The invention relates to a sulfur autotrophic denitrification expanded bed and a sewage deep denitrification method thereof, and belongs to the technical field of sewage deep treatment.The sulfur autotrophic denitrification expanded bed comprises a water inlet device, a backflow device water inlet, a backflow device water outlet, a first sampling port, a second sampling port and a water drainage port, and a pebble bed, a filler layer and a clear water layer are arranged in the device from bottom to top; according to the technical scheme, a reinforced filler is loaded through a layered double hydroxide-bentonite composite material, and is combined with hydroxyl polyethylene glycol sulfydryl after being coated with elemental sulfur, so that the modified denitrification filler is obtained; the sulfur autotrophic denitrification expanded bed is filled with the modified denitrification filler, and the change of the expansion rate is realized by optimizing the particle size of the filler and controlling the reflux ratio, which reflects that the filler with smaller particle size can effectively increase the denitrification rate and improve the denitrification efficiency; through the expanded bed process, the removal effect on nitrate nitrogen, ammonia nitrogen and total phosphorus in sewage can be better enhanced, and the denitrification performance of the sulfur autotrophic denitrification expanded bed is improved.

A coupling assembly for a motor vehicle powertrain includes a rigid carrier and a wet friction material attached to a surface of the rigid carrier. The wet friction material includes a base material enclosing a fiber matrix and filler particles embedded in the fiber matrix; a binder embedded in the base material; and a colloidal silica coating applied to an outer surface of the base material.

The utility model provides a fluidized bed iron-carbon micro-electrolysis reactor with an enhanced denitrification function, which belongs to the technical field of sewage treatment and comprises a reaction tower body, a water inlet header pipe and an air lifter, the reaction tower body comprises a bearing plate, and a crystal discharge header pipe is arranged at the bottom of the iron-carbon composite fluidized filler and penetrates through the reaction tower body. The iron-carbon micro-electrolysis reactor disclosed by the utility model has the beneficial effects that the iron-carbon composite fluidizing filler arranged in the reaction tower body of the reactor can be in a fluidizing state under the action of lifting water flow of the air lifter, so that the mass transfer exchange rate is improved, and the time required by iron-carbon micro-electrolysis reaction is greatly reduced, thereby reducing the volume and construction cost of the reactor and improving the production efficiency. Meanwhile, the filler particles are always in an irregular motion state in a fluidized state, so that the problem of hardening of the filler particles in the reactor is avoided; the iron-carbon composite fluidized filler comprises sodium chloride modified zeolite filler particles, and the sewage treatment efficiency of the reactor can be greatly improved.

The invention relates to the technical field of dispersing agents, and particularly discloses a polycarboxylic acid type dispersing agent as well as a preparation method and application thereof. The preparation method comprises the following steps: polymerizing itaconic acid, 2-acrylamide-2-methylpropanesulfonic acid, glycidyl methacrylate, methyl styrene, gamma-methacryloxypropyltrimethoxysilane, the modified hybrid compound, vinyl 2-mercaptopropionate and allyl polyoxyethylene ether to obtain a polycarboxylic acid type dispersing agent; the dispersing agent has excellent dispersing performance and heat resistance, the dispersing agent is not prone to losing efficacy in the high-temperature vulcanization process in the rubber processing process, and when filler and rubber are mixed, the dispersing agent is firmly adsorbed on the surfaces of filler particles through multiple acting forces, so that the dispersing agent is not prone to losing efficacy, and the service life of the dispersing agent is prolonged. The dispersing performance of the filler and the interface bonding force with rubber are improved, so that the filler is uniformly distributed in the rubber, a stable dispersion system is formed, the mechanical property of vulcanized rubber is improved, and the processing fluidity is improved.

The invention discloses an electromagnetic shielding film and a circuit board, the electromagnetic shielding film comprises a protective layer and a shielding layer which are sequentially stacked, filler particles are arranged in the protective layer, and the outer contour of the filler particles is arc-shaped. According to the electromagnetic shielding film, the filler particles with the circular-arc-shaped outer contours are arranged in the protective layer, so that edges and corners of the filler are reduced, the anti-tearing effect of the electromagnetic shielding film is improved, and meanwhile, when the filler particles with the circular-arc-shaped outer contours are pressed, stress of the protective layer is dispersed, stress concentration of the filler is avoided, friction force among the filler particles is reduced, and the anti-tearing effect of the electromagnetic shielding film is improved. The electromagnetic shielding film is not easy to relatively slide and displace, so that the pulling and damage to the electromagnetic shielding film are reduced, the damage probability is reduced, the damage problem is solved, and meanwhile, the stability of the shielding performance is ensured.

A curable composition contains vinyl-functional silicone polymer, silyl-hydride function polysiloxane crosslinker, platinum-based hydrosilylation catalyst, 93.5 to 96 weight-percent thermally conductive filler particles other than boron nitride platelet particles: 0.2 to 2.5 weight-percent platelet boron nitride particles, 0.1 to 1.0 weight-percent polyether additive, 0.10 to 5.0 weight-percent of a filler treating agent, and a cure inhibitor.

A method of making a wet friction material includes coating a first outer surface of a cellulose layer with a friction coating; placing a matrix of fibers and filler particles on a second outer surface of the cellulose layer; and saturating the matrix of fibers and filler particles with a binder and curing the binder to join the matrix of fibers and filler particles together to form a wet friction material base layer and to join wet friction material base layer to the second outer surface of the cellulose layer.

A separator includes a substrate, an inorganic coating layer, and an adhesive layer, where the inorganic coating layer and the adhesive layer are disposed on a first surface of the substrate. The inorganic coating layer is disposed between the substrate and the adhesive layer. The adhesive layer is disposed on a second surface of the substrate. The inorganic coating layer includes filler particles. The adhesive layer includes polymer particles. The separator includes a first surface provided with the inorganic coating layer and the adhesive layer. In a region with an area of 100 μm2 on the first surface, a quantity of the polymer particles is A, where 10≤A≤100. An average particle size of the filler particles is Dv50−1 μm, and an average particle size of the polymer particles is Dv50−2 μM, WHERE Dv50−1 AND Dv50−2 SATISFY 0.2≤Dv50−1 / Dv50−2≤2.5 AND 0.2≤Dv50−1≤1.

A casting in the form of a sink, including a basin having a base, a rear wall, a front wall and two interconnecting side walls, and also a circumferential rim that extends to the side of the basin and consists of flat rim sections that extend in a straight line from the lateral edges of the rear wall, the side walls and the front wall. The sink is composed of a composite material including a cured polymeric binder and filler particles intercalated therein. A skirt that surpasses the height of the front wall at least in sections adjoins at least the rim section of the front wall, and its outer face extends at right angles from the outer face of the rim section and in a straight line up to the end thereof.

The utility model discloses a soft absorption device for wound effusion, which comprises an effusion absorption device, a soft tube, effusion absorption medical gauze coated on the outer side of the soft tube, and effusion absorption filler particles filled in the soft tube, and the outer surface of the soft tube is provided with effusion holes; the supporting assembly comprises a supporting rubber column penetrating through the soft pipe, a holding rod with the two ends arranged on the outer side of the end of the supporting rubber column in a sleeving mode and a connecting base for supporting the end of the supporting rubber column, and the connecting base comprises a rubber supporting column connected with the end of the supporting rubber column and an attaching rubber plate connected with one end of the rubber supporting column; according to the design of the liquid suction consumable which continuously sucks liquid and is beneficial to observing the wound, the effusion suction medical gauze primarily adsorbs the effusion, the extending liquid enters the soft tube from the effusion hole, the liquid suction filler particles absorb the effusion to expand at the moment, and under the limiting action of the soft tube, the liquid suction filler particles are prevented from being excessively expanded, so that the wound is prevented from being damaged. And the whole wound effusion suction process is sustainable.

The invention belongs to the field of water treatment, and relates to a high-temperature-resistant adhesive as well as a preparation method and application thereof. The high-temperature-resistant adhesive contains polyisocyanate, polymer polyol, acrylate resin with a specific structure, tackifying resin, modified high-temperature-resistant filler particles, a free radical initiator, a photoinitiator and a polymerization inhibitor. The modified high-temperature-resistant filler particles comprise high-temperature-resistant filler particles and polyester polyol which is coated on the surfaces of the high-temperature-resistant filler particles and has a specific structure. The polyurethane adhesive provided by the invention has very excellent long-term high temperature resistance and wide industrial application prospect.

The invention relates to the field of anticorrosive coatings, in particular to a high-molecular heavy-duty anticorrosive material for improving the quality of strip steel of a hot rolling mill and a preparation process thereof. A high-molecular heavy anti-corrosion material for improving the quality of strip steel of a hot rolling mill comprises the following raw materials in parts by mass: 55-70 parts of aliphatic dicarboxylic acid alkoxide, 15-30 parts of modified polysiloxane, 2-4 parts of a pH regulator, 3-5 parts of a corrosion inhibitor, 1-3 parts of a preservative, 1-5 parts of a plasticizer, 2.5-5 parts of a wetting dispersant, 5-10 parts of filling particles and 30-50 parts of deionized water. The high-temperature-resistant anticorrosive paint prepared by the invention not only can be used as a special heavy-duty anticorrosive paint for a hot rolling unit in the iron and steel industry, but also has excellent high-temperature resistance, so that the durability of the high-temperature-resistant anticorrosive paint in a high-temperature and high-humidity environment is improved, and the high-temperature-resistant anticorrosive paint also shows excellent performance in the aspects of aging resistance, oxidation resistance, corrosion resistance and the like; therefore, the comprehensive performance requirements of related equipment on the high-temperature-resistant anticorrosive paint in the existing steel hot rolling production process are met, and the high-temperature-resistant anticorrosive paint has a very excellent application prospect.

A method of making a wet friction material includes coating a first outer surface of a cellulose layer with a friction coating; placing a matrix of fibers and filler particles on a second outer surface of the cellulose layer; and impregnating the matrix of fibers and filler particles with a binder and curing the binder to bond the matrix of fibers and filler particles together to form a wet friction material base layer and bonding the wet friction material base layer to the second outer surface of the cellulose layer.

This invention relates to a thermoplastic composition comprising: a) 20 to 90 wt% of a thermoplastic resin, b) a laser-direct structuring additive, c) optionally, ceramic filler particles without laser-direct structuring additive function, and d) 0.1 to 5.0 wt% of an acid-modified polymer, wherein b) comprises b1) a conductive metal oxide, wherein the conductive oxide has a maximum of 5 x 10⁻⁶ ppm. 3 The resistivity is Ω·cm, and it contains at least a metal of Group n and Group (n+1) of the periodic table, where n is an integer from 3 to 13, and / or b2) calcium copper titanate.

A thermally conductive casting resin comprises at least one resin and filler particles of different size classes. The filler particles exhibit a trimodal size distribution with a first volume fraction V1 of first particles with sizes from a first size range around a first mean particle size PG1, a second volume fraction V2 of second particles with sizes from a second size range around a second mean particle size PG2 > PG1, and a third volume fraction V3 of third particles with sizes from a third size range around a third mean particle size PG3 > PG2, wherein (i) at least 95% of all filler particles belong to one of the three particle types, such that the condition 95% ≤ (V1 + V2 + V3) ≤ 100% applies; (ii) for size ratios the conditions 3 ≤ PG 2 / PG 1 ≤ 5 and 4 ≤ PG 3 / PG 2 ≤ 8 apply and (iii) for volume ratios the conditions 20% ≤ V1 ≤ 30% , 15% ≤ V2 ≤ 25% ; 50% ≤ V3 ≤ 60% apply.