40results about How to "High solid content" patented technology

The invention belongs to the technical field of ceramic materials, and particularly discloses whisker toughened zirconium oxide-aluminum oxide composite ceramic and an additive manufacturing method thereof, the composite ceramic comprises the following components by mass: 94 parts of zirconium oxide toughened aluminum oxide ceramic and 5 parts of silicon carbide whisker; the zirconium oxide toughened aluminum oxide ceramic is prepared from the following components in parts by mass: 76 parts of aluminum oxide and 24 parts of zirconium oxide, and 3mol% of yttrium oxide is added into the zirconium oxide. According to the whisker toughened zirconium oxide-aluminum oxide composite ceramic and the additive manufacturing method thereof, the preparation method has unique design of components and process, and the preparation of a high-density and high-performance ceramic-based composite material part based on a fused deposition modeling technology is successfully realized. Further, the prepared silicon carbide whisker toughened zirconium oxide-aluminum oxide-based composite ceramic has relatively high density and excellent obdurability.

This invention discloses a retractable multi-material 3D printing head, which includes an extrusion structure, a first feeding structure, a second feeding structure, and a third feeding structure. By connecting the three feeding structures with one extrusion structure, the extrusion retraction problem in 3D printing of multiple materials is solved. The extrusion structure has three meshing screws, resulting in high mixing efficiency during slurry mixing. Simultaneously, each of the three feeding structures has a screw, allowing for better control of the amount of high-viscosity material added to the extrusion structure. Furthermore, the three screws inside the extrusion structure are specially designed irregular-shaped screws. While achieving conventional mixing, they not only better control the material extrusion amount but also work together with the screws in the feeding structures to achieve slurry retraction when printing high-viscosity materials, improving the forming effect and allowing for a wider solid content range in the formed ceramic slurry.

The utility model discloses a kind of separation devices of continuous type sedimentation reaction product in cerium purification process, belong to cerium production field, including filter device, further including primary separation equalizing tank, the primary separation equalizing tank is connected with feed pipe, equalizing solid-liquid ratio discharge pipe and overflow pipe respectively, equalizing solid-liquid ratio discharge pipe other end is connected with filter device, filter device is further connected with filtrate pipe, filter device is provided with continuous slagging port, the discharge pipe of several sedimentation reaction tanks is connected in parallel on feed pipe. The utility model can continuous production, alleviate the burden of filter device, and the filter residue after separation has high solid content.

The application discloses an acrylic emulsion, and steps are as follows: adding deionized water, polyvinylpyrrolidone and sodium stearate into a reaction kettle under normal temperature, heating, stirring and dissolving, stopping heating after complete dissolution, and obtaining component A; stirring, mixing, heating and obtaining component B by mixing polyethylene glycol, water-based acrylic resin, a dispersing agent and an emulsifier under normal temperature; stirring and mixing water-based color paste, bisphenol A and sodium dodecyl sulfonate under normal temperature, and obtaining component C; stirring and mixing component A, component B and a defoaming agent under normal temperature, heating, cooling again, adding glycerol, cooling, adding essence and component C while stirring, uniformly stirring and mixing, continuously cooling, and obtaining the acrylic emulsion. The obtained acrylic emulsion is environment-friendly, harmless, does not affect children's health, not easy to age, and convenient to clean.

The application discloses a composite catalyst for chemical flow casting preparation of a polyimide film and a method for preparing the polyimide film. After a polyamide acid composition is flow cast on a support to form a gel film, the polyimide film is prepared through high-temperature curing. The polyamide acid composition is uniformly mixed at normal temperature from a polyamide acid solution, a polar aprotic solvent, an imidization composite catalyst, a thermal latent catalytic type blocking agent and a dehydrating agent. The imidization composite catalyst is compounded from two types of imidization catalysts with high activity and low activity respectively. The application develops a normal-temperature (16 DEG C to 35 DEG C) chemical flow casting preparation method of a PI film by adopting the imidization catalysts with high catalytic activity and low activity to prepare the composite catalyst. Compared with a traditional low-temperature chemical flow casting method, the manufacturing energy consumption and manufacturing cost are greatly reduced.

The application relates to the technical field of nanomaterials, and discloses monodisperse nanometer carbonate and a preparation method and application thereof. The method for preparing the monodisperse nanometer carbonate comprises the following steps: (1) performing acid-base neutralization reaction on a calcium source and / or a magnesium source and a surfactant in the presence of an organic solvent; wherein the calcium source is an alkaline calcium source, the magnesium source is an alkaline magnesium source, and the surfactant is an organic acid; (2) mixing water with the product obtained through the acid-base neutralization reaction in step (1); (3) performing first carbonization reaction on the mixture obtained through step (2) and a carbon source a; (4) performing second carbonization reaction on the product obtained through the first carbonization reaction and a carbon source b; wherein the carbon source a is different from the carbon source b. The monodisperse nanometer carbonate particles disclosed by the application are small in particle size, 1-5 nm in size, small in particle size, uniform in particle size distribution, monodisperse, and good in dispersity.

This invention provides a modified aqueous negative electrode, its preparation method, and its application. The modified aqueous negative electrode includes a negative electrode current collector and a negative electrode active material layer disposed on the surface of the current collector. The negative electrode active material layer includes a negative electrode active material, a conductive agent, sodium alginate, waterborne polyurethane, and a pore-forming agent. The modified aqueous negative electrode of this invention solves both the raw material shortage problem of oil-based negative electrode formulations and the pain points of current aqueous negative electrode formulations, improving the slurry solids content, electrode porosity, and flexibility, while reducing electrode resistivity. Furthermore, this formulation is environmentally friendly, requiring no control of ambient humidity, and can significantly reduce production costs.

The invention relates to the field of anticorrosive paint, in particular to hyperbranched epoxy resin anticorrosive paint and a preparation method thereof. The coating is a two-component system, wherein a component A comprises an epoxy resin main body, 5-20 parts of a hydroxyl-terminated hyperbranched polyester modifier, a flaky filler, an anti-rust pigment, a reactive diluent and an auxiliary agent; the algebra of the hyperbranched polyester is G2-G4, and the hyperbranched polyester is prepared by melt polycondensation of trimethylolpropane and 2, 2-dimethylolpropionic acid; and the component B is a polyamide curing agent. The preparation method comprises the following steps: synthesizing hyperbranched polyester; pre-mixing the component A with epoxy resin, grinding and dispersing with filler and auxiliaries, and mixing paint to obtain a component A; mixing a curing agent with a coupling agent to obtain a component B; by utilizing the unique structure of the hyperbranched polyester, the epoxy coating is obviously toughened on the premise of not losing the hardness, the viscosity of the system is reduced, the constructability and the filler dispersity are improved, and finally the high-performance coating with impact resistance, strong adhesion and long-acting corrosion resistance is obtained.

The application discloses a perfluorosulfonic acid resin coating liquid, which comprises 20-41 parts of perfluorosulfonic acid resin, 59-80 parts of high-boiling-point solvent and 0.001-1 part of anticoagulant by weight, wherein the anticoagulant is one of LiOH, NaOH, KOH, RbOH and CsOH. By introducing inorganic alkali as an anticoagulant, the sulfonic acid group (-SO3H) in the perfluorosulfonic acid resin is converted into a sulfonate form (-SO3 ‑ ) with a higher degree of ionization by reacting with the sulfonic acid group (-SO3H), thereby significantly enhancing the dissociation and dispersion stability of the perfluorosulfonic acid resin in the coating liquid, inhibiting local gelation caused by acidic agglomeration, and enabling the coating liquid to carry a higher solid content without gelation.

The present application relates to a kind of refractory dispersant and its preparation method in the technical field of refractory additive, it is the comb structure copolymer, the copolymer includes styrene-maleic anhydride copolymer main chain, polyethylene glycol side chain grafted on the styrene-maleic anhydride copolymer main chain by ester bond, and phosphate radical;The polyethylene glycol side chain includes short-chain polyethylene glycol with molecular weight of 400-600 and long-chain polyethylene glycol with molecular weight of 800-1200.The present application realizes the precise division of function by using asymmetric compound polyethylene glycol side chain of specific molecular weight range, and controls esterification grafting degree is 50%-85%, not only can provide excellent initial wetting and dispersion force, ensure that slurry has excellent construction fluidity, but also can effectively prevent particle re-aggregation and sedimentation under static or shear, so as to fundamentally solve the technical problem that traditional dispersant is difficult to consider high initial fluidity and long-term anti-settling property, plasticity.

The invention relates to the field of 3D printing, in particular to a 3D printing MOFs-based composite material for iodine adsorption and a preparation method. The preparation method comprises the following steps: uniformly mixing a binder, a thickening agent and HKUST-1 to form 3D printing ink; the 3D printing ink is used for printing; wherein the mass ratio of the binder to the thickening agent to the HKUST-1 is 5: (10-75): (20-85), the method can accurately control the material structure, the preparation mode is simple, kaolin is used as the binder, CMC is used as the thickening agent, the price is low, the method is environmentally friendly, and the ink prepared in the mode has high mass fraction of MOFs and has a good adsorption effect on iodine in liquid.

The application relates to the technical field of wood decoration materials, and particularly discloses a wood surface composite structural color protective layer and a preparation method. The application first self-assembles and constructs a structural color layer on the wood surface; then applies PVB ethanol solution, and forms a PVB layer which internally strengthens the structural color layer in a dot-shaped bonding mode after drying; and finally coats UV paint and forms an outer protective layer through ultraviolet light curing. The PVB layer of the application effectively strengthens the cohesive force and the adhesion to the substrate without destroying the order of the structural color layer; the UV paint layer is firmly combined with the PVB layer through possible chemical bonding, and excellent wear resistance and scratch resistance are provided. The two are synergistic, solve the technical problem that the adhesion of the traditional wood surface structural color layer is poor and the structural color layer is easily damaged, and the prepared color protective layer is bright in color and has a wide application prospect.

The invention discloses a ceramic bearing device for thin glass processing and a ceramic supporting strip preparation method, the ceramic bearing device for thin glass processing comprises a plurality of ceramic supporting strips and a supporting frame, the ceramic supporting strips are vertically arranged, and the plurality of ceramic supporting strips are arranged in parallel; the ceramic supporting strip comprises a continuous ceramic line, and the diameter of the ceramic line is 1-2 mm. The ceramic line is provided with a plurality of first arc-shaped ceramic line segments, every two adjacent first arc-shaped ceramic line segments are connected through a connecting part, and each connecting part comprises a horizontal ceramic line segment or a second arc-shaped ceramic line segment. The first arc-shaped ceramic line segment is of an arc-shaped structure; the arc-shaped ceramic line segment is of an arc-shaped structure; the ceramic support strip is prepared by integral forming; the prepared ultra-thin glass bearing device is resistant to acid and alkali corrosion and stable at high temperature, and the supporting strips used for bearing ultra-thin glass are integrally formed and long in service life.

This utility model belongs to the field of industrial wastewater treatment technology, and discloses an integrated rainwater thallium removal device, including a collection tank, a treatment mixing tank, an aeration oxidation tank, a first deep cone thickener, a filter press, and an outlet water tank. The collection tank, treatment mixing tank, aeration oxidation tank, and first deep cone thickener are connected in series on the same pipeline. The concentrated liquid outlet of the first deep cone thickener is connected to the liquid inlet of the filter press, and the clear liquid outlet of the first deep cone thickener is connected to the outlet water tank. The liquid outlet of the filter press is returned to the treatment mixing tank through a return pipe. The principle of the deep cone thickener equipment of this utility model is to achieve efficient solid-liquid separation by using gravity sedimentation combined with flocculants to accelerate particle sedimentation. At the same time, the solid content of the sludge is increased through flocculation reaction. The separation problem of wastewater and sludge can be solved by using a smaller filter press, thereby reducing the investment in filter press equipment.

This application discloses an additive for lithium-ion batteries and its application. The additive has the following raw material composition by weight: 40-70 parts first solvent; 1-10 parts first polymer; 5-15 parts second polymer; 10-20 parts small molecule organic amine; and 10-20 parts stabilizer. The first polymer contains at least one nitrogen-free polar functional group; the second polymer contains at least one nitrogen-containing polar functional group; and the stabilizer is a hydrazine compound. The additive provided in this application, when used in lithium-ion batteries, can solve the problems of thick electrodes easily cracking and the difficulty in dispersing positive electrode particles.

The invention discloses a high-strength plant cellulose-based composite paperboard and a preparation method thereof, belongs to the technical field of paperboard materials, and aims to solve the technical problem that the strength and wet strength retention rate of a plant fiber-based composite paperboard in the prior art need to be further improved. The composite plant fiber layer is composed of a plant fiber layer and interface layers arranged on the two sides of the plant fiber layer in a modifying mode. A plant fiber layer is prepared through CMC modified plant cellulose, a PEG modified inorganic reinforcing agent and a bio-based toughening agent reinforced plant fiber, a composite structure of an interface layer, a fiber layer and an interface layer is formed by arranging a double-interface layer containing lignin nano particles / carboxylated nano cellulose, and a hot-pressing curing process is combined, so that the lignin / carboxylated nano cellulose composite fiber is prepared. The strength and toughness of the plant fiber-based composite paperboard are effectively improved, and the wet strength retention rate of the material is also effectively improved.

The invention provides black paste for labor protection gloves and a preparation method of the black paste, and belongs to the technical field of preparation of labor protection appliances, an anionic surfactant in the black paste has good permeability, and can accelerate the exchange speed of a solvent and water in the black paste and improve the brightness; the added dispersing agent can avoid flocculation of carbon black particles, stability of the color paste is improved, in addition, the amine value of the color paste is low, and the viscosity cannot be affected under the high-temperature condition; the adopted hydroxyl acrylic acid modified polyurethane contains COOH, OH, benzene ring and other pigment affinity groups, has the advantage of high gloss, and also has certain dispersion and viscosity reduction functions. The black paste provided by the invention is wide in raw material source, low in price, simple in production process and low in cost, and the prepared black paste has the characteristics of high blackness, high brightness, high solid content, low viscosity, low odor and good wear resistance, and has good application prospects and popularization values.

The present application relates to a kind of water-based quick-drying coating for casting and its preparation method, the water-based quick-drying coating is prepared by the following raw materials according to weight percentage, refractory aggregate 60~80%, binder 3~10%, suspending agent solution 0.5~5%, quick-drying aid 0.2~1.0%, dispersing agent 0.2~1.0%, defoaming agent 0.1~1.0%, water-reducing agent 0.2~1.0%, carrier liquid 14~25%.The water-based casting coating of the present application has the characteristics of short drying time, small gas evolution, high surface strength.

The application discloses a kind of water-based polyurethane adhesive materials and preparation method thereof, it is related to adhesive material preparation technical field.The component used in the application takes isocyanate, polycaprolactone dihydric alcohol PCL2000 as main raw material, 2,2-bis (hydroxymethyl) propionic acid and the like as hydrophilic chain extender, 1,4-butanediol as small molecule chain extender, triethylamine is neutralizing agent, and hydrophilic polyurethane prepolymer is synthesized, and low-temperature deionized water is added under high-speed shearing to synthesize water-based polyurethane adhesive.The water-based polyurethane adhesive material prepared in the application has high solid content, low water absorption, excellent tensile strength, bonding performance and anti-sagging property.

The invention discloses a preparation method of high-solid-content and high-flowability sodium ion aqueous positive electrode slurry, which comprises the following steps: S1, preparation of a glue solution: adding a binder into deionized water, and stirring to obtain the glue solution; s2, preparation of a high-fluidity glue solution: adding a first glue solution flow regulator into the glue solution, and stirring at a high speed to obtain the high-fluidity glue solution; s3, preparing a weakly alkaline glue solution, namely adding a second pH flow regulator into the high-flowability glue solution, and stirring to obtain the weakly alkaline glue solution; s4, preparation of a conductive adhesive solution: adding a first conductive agent into the alkalescent adhesive solution, and stirring to obtain the conductive adhesive solution; s5, preparation of first slurry: adding the active substance material into the conductive adhesive solution in batches, stirring and dispersing, and adjusting the viscosity to obtain the first slurry; and S6, preparation of finished slurry: adding the second conductive agent into the first slurry, and stirring and dispersing at a medium-low speed to obtain the final slurry. The invention has the characteristics of good fluidity, high solid content and green and environment-friendly process.

The present application relates to the field of conductive agent, in particular to a kind of conductive agent for improving the solid content of lithium iron phosphate slurry and its preparation method.The conductive agent is composed of amino-modified graphene and organic small molecule compound, and the surface of graphene is introduced with quaternary ammonium salt compound for amino-modification, so as to improve its hydrophilicity and compatibility with lithium iron phosphate, and then significantly improve the solid content, dispersibility and stability of lithium iron phosphate slurry.The conductive agent can improve the concentration and electrical conductivity of lithium iron phosphate slurry, reduce the agglomeration phenomenon of slurry, and enhance its long-term storage stability.The slurry prepared by using the conductive agent has high solid content, excellent electrical conductivity, small particle size and longer dispersion stability, which can effectively improve the production efficiency and overall performance of battery.

The invention relates to the technical field of vinyl acetate-ethylene copolymer emulsion, and discloses a composition for preparing the vinyl acetate-ethylene copolymer emulsion for tile glue, the copolymer emulsion, and a preparation method and application of the copolymer emulsion. 6-8 parts by weight of ethylene; 26-28 parts by weight of a pre-emulsified monomer; 2.2 to 2.4 parts by weight of a repolymerization grafting emulsion; and 39-40 parts by weight of water. The vinyl acetate-ethylene copolymer emulsion is applied to ceramic tile adhesives, has the advantages of good water resistance and high strength, and can be used in the field of ceramic tile adhesives.

The invention belongs to the field of organic polymer coatings, and particularly relates to a vacuum coating coating composition which comprises a primer and a finishing coat, and the primer comprises 20-40 parts of hydroxyl functionalized acrylic resin; 5 to 10 parts of fully etherified amino resin; 1 to 5 parts of a six-functionality acrylate oligomer; 1 to 5 parts of trifunctional acrylic ester; 1 to 5 parts of pentaerythritol triacrylate; 5 to 15 parts of modified acrylate resin; 1-2 parts of a photoinitiator; 0.5 to 1 part of a multifunctional cross-linking accelerant; and 30-60 parts of a cosolvent. The finish paint comprises 30-40 parts of water-based hydroxy acrylic resin; 5 to 10 parts of water-based high NH type etherified amino resin; 20 to 40 parts of a cosolvent; 20 to 30 parts of water; and 0-5 parts of a neutralizer. The coating composition is suitable for metal and glass products, is particularly suitable for vacuum coating treatment on the surfaces of wine bottles and cosmetic bottles, and has the characteristics of good metallization effect, high hardness, strong adhesive force, alcohol resistance and strong water resistance.

This utility model discloses an automatic material cleaning and recycling mechanism, including a mesh belt and a soaking tank located below the mesh belt. The soaking tank includes a cleaning trough and inclined surfaces on opposite sides of the cleaning trough. The cleaning trough is located between the lower parts of the two inclined surfaces. A cleaning screw is installed inside the cleaning trough, extending along the arrangement trajectory of the cleaning trough. A discharge port is provided at the bottom of the cleaning trough. A drive motor is installed outside the cleaning trough to drive the cleaning screw to rotate and push the material to the discharge port. At least one of the inclined surfaces is provided with a flip door, which includes a flipped state and a non-flipped state. When in the flipped state, the flip door encloses the cleaning trough into a sealed space. When in the non-flipped state, the flip door releases the enclosure and seal of the cleaning trough. By adopting this configuration, the problem that the prior art cannot perform cleaning without stopping the machine can be solved.

This application belongs to the field of resin technology, specifically relating to a high-solids-content, low-VOC alkyd resin, its preparation method, and a fast-drying alkyd coating. The high-solids-content, low-VOC alkyd resin comprises the following components in parts by weight: 15-20 parts of sulfonate monomer, 13-18 parts of soybean oil fatty acid, 5-10 parts of glycerol, 5-10 parts of pentaerythritol, 5-10 parts of phthalic anhydride, 5-10 parts of rosin, 8-10 parts of solvent A, and 0.1-0.3 parts of additives. This high-solids-content, low-VOC alkyd resin, when applied to alkyd coatings, can solve the problems of high volatile organic compound (VOC) emissions and slow drying speed associated with traditional alkyd resins.

The present application relates to the field of preparation of bio-based multi-level pore carbon material and environmental governance, in particular to a kind of bio-based three-dimensional multi-level pore carbon material and its preparation method and application.The preparation method of bio-based three-dimensional multi-level pore carbon material of the present application includes the following steps: biomass raw material and phenol, composite acid catalyst are mixed and reacted 1, to obtain bio-based liquefied material;Bio-based liquefied material is mixed with composite base catalyst and polyformaldehyde, and then reacted 2, to obtain bio-based liquefied resin;Bio-based liquefied resin is mixed with surfactant, foaming agent, metal-based DES and curing agent, and then foamed, to obtain carbonization precursor;The carbonization precursor is subjected to carbonization treatment, and then ultrasonic water washing is carried out, to obtain bio-based three-dimensional multi-level pore carbon material.The bio-based three-dimensional multi-level pore carbon material prepared by the method of the present application has uniform structure, contains micron-nanometer multi-level pore structure, and has high adsorption performance.

The invention relates to the technical field of coal, and provides a coal water slurry additive composition, coal water slurry and a preparation method thereof. The coal water slurry additive composition comprises an anti-freezing agent and a dispersing agent, the mass ratio of the anti-freezing agent contained in the coal water slurry additive composition is 74.0%-96.4%, and the mass ratio of the dispersing agent contained in the coal water slurry additive composition is 2.6%-18.6%. Wherein the anti-freezing agent comprises polyol, a salt compound and an amino organic matter, and the dispersing agent comprises a polycarboxylic acid type dispersing agent. According to the application, the freezing point of the coal water slurry is remarkably reduced through the synergistic cooperation of the polyhydric alcohols, the salt compounds and the amino organic matters; meanwhile, agglomeration of pulverized coal particles is inhibited through the polycarboxylic acid dispersing agent, so that the viscosity of the coal water slurry is reduced, and the solid content is increased.

The invention discloses a low-cost preparation method of a WC-Co alloy, and belongs to the technical field of hard alloys. The method comprises the following steps: mixing tungsten carbide powder and cobalt powder through wet grinding, and drying to obtain mixed powder; the mixed powder is dispersed in an additive aqueous solution, and WC-Co water-based slurry with the solid phase content being 89 wt%-92 wt% is prepared; carrying out printing molding on the obtained slurry at room temperature by adopting a direct writing type 3D printer to obtain a WC-Co composite material green body; and then the green body is subjected to degreasing and sintering treatment, and the WC-Co alloy is obtained. A water-based system is adopted, the using amount of a dispersing agent is small, the slurry is green and environmentally friendly, the prepared slurry has the high solid phase content and the good rheological property and is suitable for direct-writing 3D printing, the density of the obtained WC-Co alloy is larger than 98%, and the Vickers hardness is higher than 1800 HV30; and the process is simple, the equipment and raw material cost is low, efficient forming of the WC-Co alloy component in the complex shape can be achieved, and the method has good application prospects in the field of hard alloy additive manufacturing.

This invention relates to the field of phenolic resin technology, specifically to a method and apparatus for producing phenolic resin. The method involves adding phenol, cresol, tert-butylphenol, and cashew phenol to a mixing tank and mixing them evenly to form a mixed phenol. The mixed phenol is then mixed with an alkaline solution in a mixer to obtain a mixed liquid. The mixed liquid is then reacted with an aqueous formaldehyde solution in a first circular reactor to obtain a prepolymer liquid. The prepolymer liquid is then reacted with trimethylhydroxyethyl ethylenediamine in a second circular reactor to obtain phenolic resin. The mixing tank, mixer, first circular reactor, and second circular reactor are connected sequentially. The phenolic resin production method and apparatus provided by this invention increase the contact area and heat dissipation effect of the materials during the reaction process, promoting rapid reaction and driving the upgrading of phenolic resin towards high performance and environmental friendliness, producing high-solids, low-viscosity phenolic resin products.

The application belongs to the technical field of silicon carbide ceramic preparation, and particularly relates to a silicon carbide ceramic slurry based on DIW-3D printing, a silicon carbide ceramic product and a preparation method. The silicon carbide ceramic slurry is prepared from raw materials including the following components and weight contents: silicon carbide mixed powder 60-100 parts, thermosetting resin 10-40 parts, dispersing agent 5-15 parts and thermal initiator 0.01-1 part. The application realizes the application of DIW-3D printing in the preparation of silicon carbide ceramic through the synergistic effect of double-particle-size SiC grading, introduction of B4C sintering aid, special resin and dispersant system, thermal initiation and solidification, DIW rheological design and gas pressure sintering, saves the material cost in the manufacturing process, prepares a silicon carbide sample with excellent mechanical properties, and further widens the development of silicon carbide ceramic.