327 results about "Talc" patented technology

The invention relates to the technical field of ceramics, in particular to a preparation method of a heat-resistant ceramic marmite. The heat-resistant ceramic marmite is composed of a green body and a glaze surface, and the green body is prepared from, by weight, 30-35 parts of fused quartz, 8-10 parts of petalite, 9-11 parts of kaolin, 19-21 parts of washed illite clay, 5-7 parts of sepiolite, 5-6 parts of andalusite, 7-9 parts of coal gangue, 0.2-0.7 part of zinc spinel and 2-3 parts of talc; the glaze surface is prepared from the following raw materials in parts by weight: 18 to 20 parts of fused quartz, 14 to 16 parts of petalite, 12 to 14 parts of kaolin, 5 to 6 parts of calcium oxide, 1.5 to 2 parts of zinc oxide, 1 to 1.5 parts of strontium oxide, 8 to 10 parts of spodumene, 0.6 to 0.8 part of lanthanum oxide, 8 to 10 parts of ZrSiO4 coated Al2O3 and 1.2 to 1.8 parts of pigment. The prepared ceramic marmite has the advantages of matt appearance, higher thermal stability, low water absorption rate and excellent comprehensive performance, and is not easy to crack and wear.

The invention discloses an enamel ceramic glaze tile with a metal spot bionic effect and a preparation method thereof, and relates to the technical field of ceramics. The enamel porcelain glaze tile comprises a bottom blank, a metal ground glaze layer and a semi-opaque cover glaze layer, the metal ground glaze layer is prepared from a first ground glaze formula or a second ground glaze formula, and the first ground glaze formula comprises, by mass, potassium feldspar, quartz, calcite, kaolin, talc, zinc oxide, ferric oxide and manganese dioxide; the formula of the second ground glaze comprises the following components in percentage by mass: potassium feldspar, quartz, calcite, kaolin, talc, zinc oxide, ferric oxide and chromic oxide; the semi-opaque surface glaze layer is prepared from the following raw materials in percentage by mass: albite, calcite, talc, burnt soil, zircon powder, oriental zirconium, calcined zinc oxide, black clay powder and calcined aluminum oxide. Through a double-layer glaze structure and a black mud powder glaze breaking mechanism, the stereoscopic visual effect that metal spots are randomly generated on an opacifying substrate is achieved, and meanwhile the Moh's hardness of the ceramic tile is improved.

The invention relates to the technical field of glazes, and particularly discloses an antifouling glaze with a snow velvet effect and a preparation method thereof. The glaze comprises the following raw materials in parts by weight: 35-45 parts of quartz stone, 4-6 parts of zinc oxide, 7-8 parts of strontium carbonate, 4-5 parts of barium carbonate, 7-9 parts of calcite, 8-10 parts of talc, 5-8 parts of kaolin, 0.01-0.1 part of titanium dioxide and 1-5 parts of a microcapsule repairing agent. According to the glaze, a large number of fine willemite crystals can be separated out, so that a flickering crystal flower effect is generated, and a glass phase between the crystals is very compact, so that the unification of a visual effect and an antifouling function is realized. Even if the surface is scrubbed to generate scratches, the surface can be recovered through self-repairing, so that the antifouling effect is further improved.

The invention belongs to the technical field of ceramics, and particularly relates to a three-dimensional effect glaze, a three-dimensional effect ceramic tile and a preparation method thereof. The three-dimensional effect glaze is composed of honeycomb ground glaze and honeycomb effect glaze; the honeycomb ground glaze comprises the following mineral components in percentage by mass: 20%-30% of quartz, 5%-10% of kaolin, 12%-18% of albite, 7%-15% of calcite, 2%-7% of wollastonite, 12%-17% of calcined talc, 15%-25% of calcined zinc oxide, 2%-6% of titanium dioxide, 2%-4% of glass powder, 1%-3% of strontium carbonate and 1%-5% of dolomite. The glaze with the honeycomb effect comprises the following mineral components in percentage by mass: 5%-15% of quartz, 5%-10% of kaolin, 40%-55% of albite, 2%-6% of barium ice feldspar, 2%-10% of calcite, 7%-15% of calcined talc, 1%-4% of calcined zinc oxide, 7%-15% of red mud and 3%-5% of coal gangue. The novel effect glaze is developed, the glaze surface is flat and smooth, meanwhile, the ground glaze is pushed to the surface through the gas phase disturbance effect, and the effect glaze sinks and wraps the ground glaze in a three-dimensional honeycomb shape.

The invention relates to the technical field of glazes, and discloses a high-performance ceramic glaze for bacteriostatic domestic porcelain and a preparation method thereof. The high-performance ceramic glaze of the antibacterial domestic porcelain is prepared from the following raw materials in parts by weight: 5 to 15 parts of albite, 20 to 30 parts of potassium feldspar, 10 to 30 parts of kaolin, 13 to 26 parts of quartz, 0.3 to 7 parts of talc, 5 to 10 parts of limestone, 2 to 5 parts of ludwigite, 0.5 to 1 part of rare earth, 2 to 5 parts of honeysuckle-loaded CuS, 1 to 3 parts of modified polysiloxane, 0.1 to 0.5 part of sodium tripolyphosphate and 0.1 to 0.3 part of carboxymethyl cellulose. The high-performance ceramic glaze for the antibacterial domestic porcelain prepared by the invention has relatively good long-acting antibacterial performance and high strength.

The invention relates to a high-reflection-high-emissivity radiation refrigeration coating for power equipment and a preparation method of the high-reflection-high-emissivity radiation refrigeration coating. The coating comprises deionized water, styrene-acrylic emulsion, titanium dioxide, hollow glass beads, zinc oxide, hexacyclic stone powder, a dispersing agent, a defoaming agent, a coalescing agent and a mildew preventive, and mica powder, calcined kaolin, talcum powder, silicon oxide micro powder or block copolymer emulsion can be optionally added. According to the coating, the synergistic effect of various infrared functional fillers and an emulsion matrix is optimized, so that high reflection of sunlight and high emission of middle and far infrared bands are realized. The coating has excellent cooling capacity, self-cleaning performance and environmental adaptability.

The invention discloses a mineral-based easily-recyclable compostable water-based barrier coating and a preparation method thereof, and belongs to the technical field of paper-based packaging materials. The coating takes water as a carrier, and is composed of a biodegradable film forming system and a designed graded lamellar mineral system composed of three minerals with different sizes and morphologies. The mineral system comprises flaky kaolin with specific morphology and size, non-asbestos grade flaky talc and fully stripped sodium montmorillonite. A mineral sheet layer forms a compact parallel spreading barrier path in a coating through a specific coating and drying curing process, and excellent water vapor and oxygen barrier, water resistance and oil resistance are realized under the low dry weight of 8-15g / m by combining with a pH value response type reversible cross-linking system. The coating system does not contain polyvinylidene chloride and perfluoroalkyl and polyfluoroalkyl substances. The paper-based material coated with the coating is easy to defibrillate and recover under the standard alkaline warm water condition, the fiber recovery rate is high, and meanwhile, the whole material meets the industrial composting requirement.

The invention relates to chemical-corrosion-resistant full-polished glaze as well as a preparation method and application thereof, and belongs to the technical field of ceramic production and manufacturing. The chemical-corrosion-resistant fully-polished glaze comprises the following mineral components in percentage by mass: 5%-10% of quartz, 5%-10% of kaolin, 1%-10% of calcined talc, 20%-25% of wollastonite, 10%-20% of calcined kaolin, 1%-5% of calcined alumina, 1%-5% of calcined zinc oxide, 1%-5% of barium carbonate, 1%-3% of titanium oxide, 1%-5% of zirconium silicate and 10%-20% of boron frit. By specially designing a full-polishing glaze formula of the ceramic tile, adjusting the firing temperature and discharging or reducing defects such as air holes in a glaze layer as much as possible, the glaze layer forms a stable inert surface, and chemical substances cannot react with the glaze layer or only slightly react with the glaze layer, so that the transparency, integrity and glossiness of the surface are kept.

The invention relates to the technical field of soft light bricks, in particular to an environment-friendly wear-resistant soft light brick and a preparation method thereof, and the environment-friendly wear-resistant soft light brick comprises the following components in parts by mass: 20-40 parts of quartz, 30-60 parts of waste slag micro powder, 10-25 parts of feldspar, 10-20 parts of kaolin, 5-15 parts of clay, 5-15 parts of talc, 5-15 parts of lamellar alumina, 1-5 parts of a sintering aid and 0.5-3 parts of a binder. According to the environment-friendly and wear-resistant soft light brick and the preparation method thereof, the waste slag micro powder and the lamellar alumina are combined with other components, a traditional single aggregate reinforcing mechanism is broken through, a two-time sintering process is used during preparation, a glaze surface and a green body are combined more firmly, the surface texture is more uniform, and the soft light effect controllability is high.

The present application relates to the technical field of ceramics, and particularly relates to a ceramic handicraft, which comprises a porcelain blank and a blank glaze applied to the surface of the porcelain blank, wherein the porcelain blank is composed of the following raw materials in parts by weight: fly ash 40-50 parts, potassium feldspar 10-20 parts, sodium feldspar 5-10 parts, black clay 8-10 parts, soda 20-25 parts, talc 1-3 parts, and waste porcelain powder 3-5 parts; and the blank glaze is composed of the following raw materials in parts by weight: quartz 40-60 parts, high-quality kaolin 10-15 parts, wollastonite 18-20 parts, waste porcelain powder 10-15 parts, potassium feldspar 6-10 parts, sodium feldspar 3-5 parts, calcined talc 3-5 parts, and zirconium-iron red agent 1-2 parts; the content of SiO2 and Al2O3 in the fly ash is more than 80 wt%, and the fly ash contains a small amount of Fe2O3, MgO and CaO; the present application solves the problem that the weight of the porcelain blank of the existing ceramic handicraft is heavy, and the industrial waste raw materials cannot be introduced in large quantities to manufacture the porcelain blank, and the resource utilization rate is poor; compared with the prior art, the glaze surface gloss of the present application is moderate, and the ceramic handicraft is beneficial to decoration and placement under a light source.

The invention discloses a high-temperature-resistant inorganic antibacterial ceramic glaze and a preparation process, and relates to the technical field of ceramic glaze preparation, the glaze is composed of a basic glaze and a zinc oxide-doped cerium dioxide inorganic antibacterial agent, and the basic glaze comprises feldspar, quartz, kaolin, calcite and talc. The preparation process comprises the following steps: mixing the raw materials, carrying out wet ball milling, adding the antibacterial agent and the dispergator, stirring at a high speed, sieving to remove iron, aging, glazing and sintering at a high temperature. In the process, an iron removal integrated unit integrating a two-stage vibration screening function and an automatic iron scraping function is adopted, and efficient and continuous iron removal operation is achieved. The obtained glaze can resist high-temperature sintering of 1150-1200 DEG C, the glaze surface is smooth and uniform, the glaze surface has lasting and efficient broad-spectrum antibacterial performance, glaze surface defects caused by iron impurities are effectively avoided, and the product yield and quality stability are improved.

The invention discloses a radiation cooling exterior wall brick and a preparation process thereof, and relates to the technical field of ceramic bricks. The radiant cooling exterior wall tiles include a body, a base glaze layer, a pattern layer and a protective glaze layer from the inside to the outside. The base glaze layer includes the following components in parts by mass: 40-60 parts of base glaze ceramic base glaze, 15-35 parts of cooling powder, 6-12 parts of calcined talc, 4-8 parts of calcined zinc oxide, 3-6 parts of dolomite, 2-4 parts of fluorite, 3-6 parts of calcined kaolin, 0.2-0.5 parts of sodium carboxymethyl cellulose, 0.2-0.5 parts of sodium tripolyphosphate and 40-55 parts of water; the protective glaze layer includes the following components in parts by mass: 60-70 parts of protective glaze ceramic base glaze, 10-20 parts of cooling powder, 5-10 parts of albite, 3-5 parts of calcined talc, 2-4 parts of calcined zinc oxide, 0.2-0.5 parts of sodium carboxymethyl cellulose, 0.2-0.5 parts of sodium tripolyphosphate and 40-55 parts of water. The present invention adjusts the component ratio of the base glaze layer and the protective glaze layer and simultaneously adds cooling powder for compounding, thereby ensuring the basic performance of the wall tile while improving its reflectivity and emissivity to infrared and visible light.

The application discloses a kind of high wear-resistant hot bending forming rock plate, including following weight parts raw materials: kaolin 30-35 parts, fine ball clay 20-25 parts, wollastonite 10-15 parts, super white sand 10-15 parts, feldspar 8-14 parts, pyroxene 7-12 parts, talc 6-10 parts, bentonite 5-8 parts, tremolite 4-7 parts, sodium tripolyphosphate 3-5 parts, modified additive 4-7 parts.The high wear-resistant hot bending forming rock plate of the application uses kaolin, fine ball and other raw materials with modified additive, through the modification of mullite and cordierite in modified additive by specific modified liquid stirring, the silicon carbide whisker liquid in modified liquid cooperates with hydroxyapatite agent into the system, through the coordination and synergistic effect between raw materials, so that the performance of the product is further improved, the toughness performance, fracture performance and wear resistance of the product are improved in coordination.

The invention relates to the technical field of building glazed tiles, in particular to an antibacterial glazed tile and a preparation method thereof.The antibacterial glazed tile comprises a green body layer and an antibacterial glaze layer which are sequentially arranged from bottom to top; wherein the antibacterial glaze layer is obtained by calcining antibacterial glaze; the antibacterial glaze is prepared from the following raw materials: high-temperature antibacterial frit, calcined kaolin, corundum, quartz, dolomite, calcined talc, strontium carbonate, wollastonite, potassium feldspar and albite; the high-temperature antibacterial frit is prepared from the following raw materials: zirconium silicate, a silver antibacterial agent, calcined aluminum oxide, calcined talc, quartz, wollastonite, kaolin, calcium phosphate, potassium feldspar, albite, boric acid and lithium carbonate. According to the antibacterial glazed tile and the preparation method thereof provided by the invention, the formula of the antibacterial glaze is optimized, so that the antistatic property and the corrosion resistance can be improved on the premise of ensuring the antibacterial property of the antibacterial glazed tile.

The invention provides a ceramic green body highly doped with lithium slag, a ceramic tile and a preparation method of the ceramic green body, and the ceramic green body is prepared from the following raw materials in parts by weight: 5-15 parts of Xiaoshi mud, 5-15 parts of Ningxi mud, 3-8 parts of bentonite, 15-30 parts of potassium sand, 8-15 parts of water frosted sand, 3-8 parts of black talc, 3-10 parts of magnesia soil, 2-10 parts of waste glass and 15-60 parts of lithium slag. According to the embodiment of the invention, the problem of product defects caused by high-temperature decomposition of sulfate is solved by measures of adjusting the firing temperature of a ceramic formula and the like, and a proper amount of low-temperature waste glass is introduced into the green body while a large amount of lithium slag is utilized, so that an effect of further reducing the firing temperature of the green body is achieved; therefore, product defects caused by large gas displacement due to high-temperature decomposition of sulfate in the lithium slag are inhibited, and the ceramic body highly doped with the lithium slag is prepared.

The invention discloses a high-hardness glaze as well as a preparation method and application thereof, and belongs to the field of architectural ceramics. The high-hardness glaze comprises the following raw materials in parts by weight: 12-14 parts of medium aluminum frit, 16-18 parts of high aluminum frit, 16-18 parts of potassium feldspar, 18-20 parts of albite, 3-5 parts of wollastonite, 1-3 parts of calcined talc, 5-7 parts of calcined zinc oxide, 4-6 parts of emery powder, 1-3 parts of calcined alumina, 2-4 parts of dolomite, 1-3 parts of barium carbonate, 3-5 parts of calcined kaolin, 5-7 parts of kaolin and 34-36 parts of printing paste. 44-46 parts of stamp-pad ink and 4-6 parts of water; a glaze layer prepared from the high-hardness glaze has high hardness and scratch resistance, is wide in application environment, and has good color development and good wear resistance.

The invention belongs to the technical field of talc, and provides a method for detecting fluorescent substances in talc raw ore, which comprises the following steps: S1, carrying out ball milling on the talc raw ore in a ball mill, sieving to obtain sieved powder, and adding deionized water into the sieved powder to obtain slurry; s2, adding the slurry into the mixture to enable the pH value of the slurry to be 5, stirring, and standing in a water bath for 2-3 hours to obtain a first precipitate; s3, adding a thiourea-ascorbic acid solution into the first precipitate to obtain a second precipitate; and S4, carrying out secondary ball milling on the second precipitate, and spreading the second precipitate in an enamel plate to detect whether the talc raw ore contains the fluorescent substances or not. The hydrochloric acid can dissolve quartz and mica to avoid generation of background fluorescence or quenching effect, and the nonionic surfactant polyethylene glycol can be adsorbed on the surface of the mineral to reduce interfacial tension, so that the hydrochloric acid is easier to infiltrate tiny pores, the pit defect caused by local over-corrosion is reduced, the pickling uniformity is improved, and the detection sensitivity is improved.

The invention discloses ceramic filler powder and a preparation method of porous ceramic, and relates to the technical field of ceramic. According to the invention, the raw material components are reasonably proportioned, and the superfine SiC-coated MgAl-LDH compound is used as an additive to be mixed with kaolin, potassium feldspar, quartz, aluminum oxide, silicon carbide and talc to prepare the ceramic filler powder. On the basis, the prepared ceramic filler powder is mixed with carboxymethyl cellulose, polyvinyl alcohol, water glass, magnesium stearate and water, then the mixture is subjected to filter pressing, vacuum pugging and aging, and then the porous ceramic is prepared through a forming process and a sintering process. The porous ceramic prepared from the ceramic filler powder provided by the invention has better compressive strength and corrosion resistance, is beneficial to expanding the application field of products, and particularly meets the requirements of high-end industries.

The invention discloses sanitary ceramic repairing glaze and a ceramic glaze surface defect repairing process. The repairing glaze comprises ground glaze and self-cleaning snowflake cover glaze, the ground glaze is prepared from 18 to 23 parts of frit, 3 to 8 parts of calcined kaolin, 25 to 30 parts of quartz, 23 to 28 parts of albite, 2 to 5 parts of wollastonite, 9 to 14 parts of calcite, 0.8 to 1.2 parts of calcined zinc oxide, 8 to 12 parts of zirconium silicate, 1 to 3 parts of barium carbonate and 0.8 to 1.2 parts of aluminum oxide; the self-cleaning snowflake cover glaze is prepared from 28 to 33 parts of frit, 12 to 16 parts of calcined kaolin, 2 to 6 parts of calcined zinc oxide, 7 to 12 parts of calcite, 3 to 8 parts of wollastonite, 16 to 22 parts of albite, 0.5 to 1.5 parts of calcined talc, 15 to 20 parts of quartz, 1 to 4 parts of barium carbonate and 0.5 to 13 parts of aluminum oxide. According to the formula of the ground glaze and the self-cleaning snowflake cover glaze, the initial melting temperature of the glaze is reduced by adding a fluxing agent and reducing high-temperature raw materials, the high-temperature chemical reaction time is shortened, and the formula can adapt to a fast firing curve of a refiring kiln.

The invention belongs to the technical field of microcrystalline glass materials, and particularly discloses rare earth doped silicate system high-crystallinity transparent microcrystalline glass and a preparation method thereof. The microcrystalline glass is prepared from the following raw materials: black talcum powder, CaO, AlF3, YF3, rare earth ions, graphite powder, Si3N4, a clarifying agent, micron-sized seed crystals and the like through a high-temperature melting process and controllable nucleation-crystallization. The preparation method is simple, the used raw materials are rich, the preparation process is simple, and the prepared high-crystallinity transparent microcrystalline glass can be effectively excited by 420 nm purple light and has the characteristics of high crystallinity, high transmittance, high luminous efficiency, excellent thermal quenching resistance and the like. A main crystal phase is CaAl2Si2O8 and a small amount of YF3, the crystallinity is larger than or equal to 70 vol.%, the transmittance of a 1 mm sample is larger than or equal to 80%, the emission peak value is adjustable between 480 nm and 520 nm, the internal quantum efficiency is larger than or equal to 80%, the luminous intensity at the temperature of 150 DEG C is 85% or above of the luminous intensity at the room temperature, and the material can be widely applied to the fields of white light illumination, screen display and the like.

The present application is a divisional application of application number 202211297725.2. The present invention belongs to the field of ceramic technology, and specifically relates to an antibacterial glaze powder with photocatalytic activity and a preparation process thereof. The antibacterial glaze powder with photocatalytic activity is composed of the following components in parts by weight: 25-35 parts of quartz, 10-20 parts of potassium feldspar, 3-5 parts of calcite, 5-8 parts of wollastonite, 2-3 parts of calcined talc, 1-3 parts of nano zinc oxide, 1-2 parts of cerium oxide, 1-2 parts of lanthanum oxide, 20-30 parts of porous material, 5-8 parts of modified titanium dioxide, 5-10 parts of antibacterial agent, 5-10 parts of grinding aid, 1-2 parts of deflocculant, 1-2 parts of auxiliary agent, and 3-8 parts of coating agent. The present invention provides an antibacterial glaze powder with photocatalytic activity. The silver-containing antibacterial agent and nano-zinc oxide can improve the killing of surface contact bacteria, and the modified titanium dioxide can improve the photocatalytic killing effect of bacteria. Through the combination of the silver-containing antibacterial agent, nano-zinc oxide and modified titanium dioxide, multiple antibacterial layers are formed on the surface of the fired glaze layer, which has an excellent bactericidal effect.

This application provides a ceramic slab and its preparation method, relating to the field of architectural ceramics production technology. The ceramic slab includes a body layer, a base glaze layer, and a top glaze layer. The raw materials for the body layer, by mass percentage (100%), include: 5%-10% limestone, 2%-8% wollastonite, 1%-5% black talc, 5%-10% white clay, 5%-10% black clay, 5%-10% bentonite, 25%-35% medium-temperature sand, 20%-30% high-temperature sand, and 10%-15% ceramic waste. The preparation method includes: ball milling the raw materials for the body layer into a slurry, spray granulation, pressing to form a body, and bisque firing to obtain a bisque; polishing the surface of the bisque, then sequentially applying the base glaze and top glaze, and firing in a kiln to obtain the ceramic slab. This application, by adjusting the body formula, lowers the bisque firing temperature, reduces the water absorption rate of the bisque, and increases the strength of the body, thereby preparing a ceramic slab with low water absorption and high strength.

The utility model relates to the technical field of underground talc mining, and discloses a conveying device for underground talc mining, which comprises a transport case, the right side of the transport case is fixedly connected with a blanking mechanism, the inside of the transport case is fixedly connected with a buffer mechanism, and the bottom of the transport case is slidably connected with a cleaning mechanism; the discharging mechanism comprises a box door, the bottom of the box door is rotationally connected to the right side of the outer portion of the conveying box, two grooves are formed in the right side of the box door, supporting plates are rotationally connected to the inner walls of the grooves, a rotating plate is rotationally connected to the top of the box door, and a fixing block is fixedly connected to the right end of the conveying box. A pull rod is slidably connected into the fixing block. According to the feeding device, the box door can be stably supported when the box door is opened for feeding, it is further guaranteed that materials cannot be scattered accidentally in the feeding process, the clamping blocks can be accurately reset and clamped through the reset springs, and the safety of the box door in the transportation process is guaranteed.

This invention relates to the field of polymer materials technology. It discloses a low-linearity polypropylene-talc composite material, its preparation method, and its applications. The material comprises the following raw materials in weight percentages: polypropylene resin: 50-65%, modified talc: 15-25%, ethylene-octene copolymer resin: 10-15%, modified flat glass fiber: 5-15%, basic magnesium sulfate whiskers: 3-10%, heat stabilizer: 0.3-1%, and antioxidant: 0.1-0.5%. This composite material exhibits advantages such as a low coefficient of linear expansion, excellent surface tension, and superior mechanical properties.

The efficient talc flotation method comprises the following steps that S1, mined talc raw ore is subjected to crushing, rolling and grading, and crushed talc particles meeting the specification size are obtained; s2, after the concentration of the ground ore pulp is controlled to be the corresponding concentration, a prepared adjusting agent is added into the ore pulp, and the PH value of the ore pulp is adjusted to be 8-11; s3, a collecting agent and a bubble agent are added into the ore pulp prepared in the step S2, and after full mixing, an ore pulp mixture is obtained; s4, the crushed talc particles and ore pulp mixture obtained in the step S1 is poured into a flotation machine, through stirring, air inflation and other operations, the talc particles are attached to bubbles and float upwards to form a foam layer, and a foam product is scraped out and is rough concentrate; and S5, the rough concentrate is subjected to concentration, and concentrated talc is obtained. According to the flotation method provided by the invention, the difference between the surface properties of the talc and the impurity minerals can be utilized.

The invention discloses a gasoline engine particle trap with a low expansion coefficient and a preparation method of the gasoline engine particle trap, and belongs to the technical field of gasoline engine tail gas emission treatment. The preparation method comprises the following steps: mixing an inorganic raw material, a pore-forming agent, a binder and a powder electrically neutral modifier, adding water, stirring into mud, pugging, carrying out extrusion molding, drying and sintering to obtain a ceramic matrix, and carrying out crossed hole plugging at two ends of the ceramic matrix to obtain the particulate filter. Wherein the inorganic raw materials comprise talc, kaolin, fused quartz powder, alpha-aluminum oxide and magnesium-aluminum double hydroxide. The synthetic magnesium-aluminum double hydroxide is used for completely or partially replacing active oxidation, so that the thermal expansion coefficient of the ceramic matrix can be directly and greatly reduced, and the thermal shock resistance of the particulate filter is improved.

This invention discloses a black-based blue-spotted glaze with an earthworm-like pattern and its preparation method. The glaze consists of a body, a black base glaze, and a blue-spotted glaze from the inside out. The raw materials for the black base glaze are: feldspar, calcite, calcium borate, dolomite, talc, barium carbonate, quartz, bentonite, zirconium silicate, rutile, cobalt oxide, manganese oxide, and iron oxide. The raw materials for the blue-spotted glaze are: feldspar, limestone, alumina, talc, barium sulfate, Datong clay, zinc oxide, quartz, and titanium dioxide. The preparation method includes: 1. Wet ball milling the black base glaze raw materials to obtain a black base glaze slurry; 2. Wet ball milling the blue-spotted glaze raw materials to obtain a blue-spotted glaze slurry; 3. Bisque firing the body; 4. Applying the black base glaze slurry to the body and drying it; 5. Applying the blue-spotted glaze slurry to the body and drying it; 6. Oxidation firing and reduction firing of the body, followed by natural cooling to obtain the black-based blue-spotted glaze. The raw material formula of this invention is reasonable and environmentally friendly, which can improve the mechanical properties of the glaze; the preparation method is simple and the yield is high.

The present application relates to zirconium-free and titanium-free quartz-based ceramic tile underglaze, and a preparation method of the ceramic tile using the underglaze. The zirconium-free and titanium-free quartz-based ceramic tile underglaze comprises, by weight: 5-8 parts of talc, 6-8 parts of wollastonite, 10-20 parts of potassium feldspar, 0-3 parts of calcined kaolin, 8-10 parts of kaolin, 35-40 parts of nepheline syenite, and 18-22 parts of high-purity high-white quartz powder. The chemical composition of the underglaze comprises, by weight percentage: 2.07-3.87% of LOI, 62.64-64.25% of SiO2, 18.47-19.34% of Al2O3, 0.10-0.32% of Fe2O3, 2.67-4.75% of CaO, 2.05-2.38% of MgO, 2.07-2.15% of K2O, and 5.02-7.17% of Na2O. The present application provides a zirconium-free and titanium-free quartz-based ceramic tile underglaze with low cost, wide firing range, uniform color development, white degree of 66-72° after firing, and glossiness of 4-7°.

The invention discloses a high-performance talc porcelain material and a preparation method thereof. In order to solve the problems of contradiction between strength and light transmission, high sintering energy consumption and the like of traditional talc porcelain, black talc and calcined talc are adopted as a basic framework, and 2%-5% of Wulan tea spar and 1%-3% of nano aluminum powder are added to realize synergistic enhancement. By optimizing ball milling, vacuum pugging and low-temperature sintering processes (1250-1280 DEG C), the bending strength of the product is larger than or equal to 145 MPa, the light transmittance of the product with the thickness being 4.5 mm is larger than 5.5%, the antibacterial rate is larger than 99.5%, and the anion release amount is larger than 3000 / cm < 3 >. According to the scheme, the sintering temperature is reduced by about 70-100 DEG C, the energy consumption is reduced by over 10%, and the method is suitable for the fields of electronics, medical treatment and the like.

To provide a multi-component organic solvent-based primer coating composition which has good finish and adhesion even when applied to a thick film and is excellent in sanding workability, and a repair coating method using the same. [Solution] A multi-component organic solvent-based primer coating composition obtained by mixing a main component (I) and a curing agent component (II), wherein the main component (I) comprises an acrylic polyol (A), a pigment composition (B), and an organic solvent (C), the curing agent component (II) comprises a polyisocyanate compound, the pigment composition (B) contained in the main component (I) comprises barium sulfate and talc and / or clay as part of its components, the content of the pigment composition (B) being within the range of 250 to 500 parts by mass based on 100 parts by mass of the solid content of the acrylic polyol (A), and the content of the barium sulfate contained in the pigment composition (B) being within the range of 120 to 400 parts by mass based on 100 parts by mass of the solid content of the acrylic polyol (A).