17results about "Pigment flushing" patented technology

The present invention belongs to the technical field of home furnishings, and provides a material for preparing polymeric air fibers, and a preparation method therefor and the use thereof. The preparation method comprises: preparing a ceramic powder doped with antibacterial TiO2 / ZnO / ZrO2; depositing magnetic ferroferric oxide thereon; after the surface is modified by tannic acid, adding same to a water-soluble chitosan solution; immersing same in a TPEE air fiber membrane prepared by means of melt-blowing; uniformly adding a genipin solution dropwise; heating and reacting same; and taking out the membrane, washing and drying same to obtain a material for preparing polymeric air fibers. The TPEE air fiber membrane prepared in the present invention has good mechanical properties, and the modified ceramic powder is uniformly dispersed in the TPEE air fiber membrane, achieving good antibacterial, environmental protection, immunity regulation, magnetic therapy, far-infrared heating and other effects, such that the prepared material for preparing polymeric air fibers has better overall performance. Thus, the material is a good mattress support material, and has broad application prospects.

The application relates to the field of ceramic ink preparation, and discloses a method for preparing zirconium-iron red material for ceramic ink prepared from fused zirconia, which comprises the following steps: S1, mixing and treating zircon sand with a modifier; S2, performing smelting treatment on the mixture so that the mixture is completely melted, and after quenching and drying, hollow particles are obtained and reserved; S3, performing grinding treatment on the melt until the melt meets the requirements and is reserved; S4, performing modified desiliconization treatment on the ground melt powder; and S5, mixing and grinding the obtained powder with other raw materials of zirconium-iron red, heating and calcining, and keeping warm, so that the zirconium-iron red material is obtained. The zirconium-iron red material prepared by the method has a color difference value close to that of a chemical zirconium standard material. Due to the improvement of the color development effect, the prepared zirconium-iron red material can be used for the preparation of ceramic ink, so that the ceramic product presents a more bright and uniform red color after firing, and the attraction and market competitiveness of the product are improved.

A method for increasing the specific surface area of titanium phosphate plate-shaped particles of this invention includes: obtaining a liquid in a state where a powder containing titanium phosphate plate-shaped particles is dispersed in an aqueous alkaline solution.

The application provides a preparation method of modified barium sulfate powder, the modified barium sulfate powder and application thereof. The preparation method of the modified barium sulfate powder comprises the following steps: (1) preparation of hydroxyl-containing barium sulfate; (2) adding the hydroxyl-containing barium sulfate prepared in step (1), 6-fluoro-4-hydroxyquinoline-3-carboxylic acid and an acidic catalyst into a reaction kettle to perform esterification reaction, filtering, dehydrating and drying after the reaction is completed to prepare an intermediate A; (3) dispersing the intermediate A prepared in step (2) and water to prepare a slurry; and (4) performing silicon-aluminum coating on the slurry prepared in step (3), and then performing filtering, washing and drying to prepare the modified barium sulfate powder. When the modified barium sulfate powder prepared in the application is used to prepare paint, the modified barium sulfate powder not only has good storage stability, adhesion and whiteness, but also does not have precipitation and stratification phenomenon during long-time storage, and does not have coating peeling, and has good impact resistance and salt spray resistance.

This invention belongs to the field of barium sulfate compounds, specifically relating to a method for preparing ultrafine BaSO4 / TiO2 composite materials. The method includes: Step 1: adding a composite modifier to barium carbonate slurry, then adding Na2SO4 solution, and performing an ultrasonic reaction; Step 2: adding titanium oxysulfate, continuing the ultrasonic reaction, filtering, washing, and drying to obtain the ultrafine BaSO4 / TiO2 composite material. This invention utilizes titanium dioxide generated from the hydrolysis of titanium oxysulfate to directly coat ultrafine barium sulfate particles modified with a composite surfactant. The process is simple, resource-recycling is possible, it is economical and environmentally friendly with no waste generation, and it can effectively control the size and properties of the ultrafine barium sulfate, making it suitable for industrial production applications.

The invention relates to attapulgite-coated titanium dioxide, a reflective thermal insulation coating and a preparation method thereof, and the preparation method of the attapulgite-coated titanium dioxide comprises the following steps: S1, treating attapulgite with hydrochloric acid to remove impurities to obtain purified attapulgite, and carrying out surface modification treatment with a titanate coupling agent to obtain modified attapulgite; s2, titanium dioxide inorganic coating slurry is taken, the modified attapulgite and deionized water are mixed to prepare suspension liquid, the suspension liquid is mixed with the titanium dioxide inorganic coating slurry, and mixed slurry is obtained; s3, the mixed slurry is filtered, washed, subjected to flash evaporation and subjected to steam pulverizing, and the attapulgite-coated titanium dioxide is obtained. The use ratio of the titanium dioxide can be reduced, and the reflection performance, dispersity and stability of the titanium dioxide can be improved.

This invention provides a method for preparing an air-blocking agent for tire airtight layers, belonging to the field of fine chemical technology. The method includes: Step 1: Raw ore pretreatment, using water washing to remove clay impurities adhering to the ore surface and manually removing associated minerals; Step 2: Coarse crushing, using coarse crushing equipment to crush the raw ore to 80-200 mesh; Step 3: Magnetic separation, using a magnetic separator to remove particles with high iron content from the coarsely crushed raw ore; Step 4: Integrated ultrafine grinding and modification, using a dry grinding process in a pneumatic kinetic energy mill at a temperature of 180-230℃, with the aid of additives, to crush the coarsely crushed raw ore using self-impact and self-friction methods; Step 5: Post-treatment, thoroughly mixing the ultrafine-ground and modified raw ore at a preset temperature and time. This invention effectively improves the grinding precision of black talc powder, enhances its dispersibility and rubber matrix affinity, and effectively removes associated minerals and heavy metal impurities.

The invention relates to a method for improving coating uniformity of colored hollow glass microspheres, in particular to a method for improving coating uniformity of colored hollow glass microspheres by using a gradually-changed pH value. The invention aims to solve the technical problem that a pigment coating layer cannot be thickened while the uniformity is kept when the chrome green pigment is deposited on the surfaces of hollow glass microspheres by the existing sol-gel method. The gradient pH value technology can combine the advantages of a low pH value technology and a high pH value technology in the background technology, the pigment coating layer can be thickened while the uniformity is kept, the yellowness of the product is obviously reduced, and the green tone is more obvious. According to the process, firstly, a sol thin layer is deposited at a low pH value, then sol particles are gelatinized on the surfaces of microspheres layer by layer in situ by a method of slowly increasing the pH value, the problem that the sol particles are firstly gelatinized in a solution and then attached to the surfaces of the microspheres in a high pH value process is solved, and finally, a coating layer is homogenized.

The application discloses an inorganic powder composition with adjustable glossiness and extinction and application thereof, relates to the technical field of extinction agents, and comprises porous silica powder and fused quartz powder, wherein the porous silica powder is composed of nano-silica aggregates, and the nano-silica is connected through chemical bonds to form a pore interpenetrating structure; when the composition of the two kinds of powder is applied in paint, coating and ink, the glossiness, viscosity and anti-sagging property can be adjusted in a large range to meet different requirements of customers; meanwhile, the functions of the two kinds of powder are clear and obviously different, so that when quality fluctuation occurs, the source can be quickly found, and the problem can be solved in a targeted manner.

An ATO-coated silver powder composite material is provided, comprising ATO and silver powder. The ATO is coated on the surface of the silver powder in the form of a coating layer with a thickness of 3–5 nm. The silver powder is in flake form with a diameter of 6–20 μm and a thickness of 0.1 μm–0.2 μm. The mass ratio of ATO to silver powder ranges from (5:95) to (20:80). The diameter of the silver powder is 8–12 μm. The ATO powder is antimony-doped tin oxide, wherein the antimony doping content is 1–20% by mass. The composite material is obtained by stirring and mixing surface-treated silver powder with an ATO coating liquid. It has infrared emissivity, low optical gloss, and low reflectivity. As a low-emissivity filler, its application in infrared stealth coatings can effectively reduce the amount of optical pigments / dyes used, achieving compatibility with visible light stealth, resulting in an ultra-low emissivity coating compatible with optical-infrared camouflage.

An electrode including: a conductive film which contains: a layered material having one or plural layers of particles of a layer body represented by: MmXn (M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is not less than 1 and not more than 4, and m is more than n but not more than 5), and a modifier or terminal T existing on a surface of the layer body, (T is at least one selected from a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, and a hydrogen atom); and a π-electron conjugated compound attached to the particles and having at least one selected from the group consisting of an aromatic ring, a heteroaromatic ring, a conjugated diene unit, an allyl group, and a vinyl group.

The invention belongs to the technical field of water-based coatings, and relates to an amphoteric polyaniline coated silicon dioxide suspension and a preparation method and application thereof.Hydrophobic nano silicon dioxide sol is prepared in the presence of an emulsifier and organic liquid through an improved sol-gel method and an emulsion polymerization technology; carrying out surface grafting by utilizing a silane coupling agent containing an epoxy group to obtain an epoxy functionalized silicon dioxide suspension; then under an acidic low-temperature condition, taking the suspension as a core, enabling aniline, fumaric acid and long-chain hydrophobic silane to be subjected to reactivity reaction under the action of an oxidizing agent, and firmly grafting polyaniline to the surface of silicon dioxide through ring-opening reaction of an epoxy group and an amino group to form an interpenetrating network shell layer with hydrophobic long-chain alkyl and hydrophilic carboxyl. The obtained filler is not additionally added with a surfactant, has good dispersity and hydrophilicity in a water suspension state, and shows super-hydrophobicity and excellent corrosion resistance after being dried into powder, and the filler suspension can be directly added into an anionic water-based coating, so that the physical shielding and electrochemical protection capabilities of the coating are remarkably improved.

The invention discloses modified hollow glass beads, which are prepared from the following raw materials: hollow glass beads, a solvent, an alkaline pretreatment solution, an acid-base regulator and a silane coupling agent, and the silane coupling agent is a non-reactive long-chain alkyl silane coupling agent. The non-reactive long-chain alkyl silane coupling agent is adopted to modify the surfaces of the hollow glass beads, so that the compatibility and dispersity of the hollow glass beads in an organic silicon system are remarkably improved, and the curing reaction of an organic silicon polymer is not influenced. A non-reactive long-chain alkyl silane coupling agent is selected, and a long and flexible molecular chain can be inserted between polymer macromolecular chains, so that the intermolecular acting force is weakened, the movement capability of a chain segment is improved, the hardness and modulus of the material are reduced, and the flexibility and the elongation are improved.

The invention discloses a preparation method of a high-whiteness filler, which comprises the following steps: calcining coal gangue as a raw material in an inert gas and carrying out immersion treatment by using dilute acid, reducing non-ferrous metals to avoid the generation of a stable spinel structure, and carrying out immersion treatment by using dilute acid to remove the non-ferrous metals to obtain the high-whiteness filler. And the requirements on production equipment and the production energy consumption are greatly reduced.

The invention discloses nano calcium carbonate for a photovoltaic adhesive with high humidity and heat performance, and a preparation method and application thereof, and belongs to the technical field of inorganic nano material modification. The method comprises the following steps: preparing a calcium carbonate suspension by taking sucrose as a crystal form control agent, treating the calcium carbonate suspension with ammonium oxalate to form a calcium oxalate coated calcium carbonate suspension, and then sequentially carrying out long-chain fatty acid wet modification and aluminum-zirconium coupling agent dry treatment. A multi-layer composite protection structure is constructed on the surfaces of the particles through the working procedures, so that the physical water blocking, hydrophobic and interface enhancing effects are synchronously realized. The photovoltaic adhesive prepared by the invention shows excellent tensile strength, elongation at break and bonding strength retention rate in a high-temperature and high-humidity aging environment, and the damp-heat aging resistance of the photovoltaic adhesive is remarkably improved.

The invention provides a method for preparing a rubber filler by using coal gasification slag as a raw material, and the obtained rubber filler and rubber, and relates to the technical field of solid waste resource utilization. The method comprises the following steps: sequentially carrying out ultrasonic cleaning, drying, screening, grinding and activating treatment on a coal gasification slag raw material; chemically modifying the fine particles of the coal gasification slag by using acid and alkali in sequence; carrying out surface chemical modification on the modified coal gasification slag by using an amino silane coupling agent; and finally, carrying out surface adsorption on the modified coal gasification slag by using polyethylene glycol. According to the invention, the enrichment degree of residual carbon and the affinity of the residual carbon with a rubber matrix are improved through physical and chemical methods. The prepared filler has the advantages of being good in compatibility with a rubber matrix, not prone to agglomeration and simple and efficient in technological process, after the filler and the rubber matrix are subjected to melt blending, the tensile strength, the shore hardness and the elongation at break of a rubber product are improved, and coal gasification slag solid waste resource utilization is achieved.

A method of recovering an inorganic pigment from a coating composition, whereby polyethylene glycol is added to the coating composition. A coating composition comprising an inorganic pigment compositi