255 results about "Talc" patented technology

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 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 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 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 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 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.

The invention discloses celeste glaze fired in a non-reducing atmosphere and a preparation method of the celeste glaze. The celeste glaze provided by the invention is prepared from the following raw materials in percentage by mass: 56 to 60 percent of feldspar, 15 to 18 percent of quartz, 10 to 13 percent of calcite, 1 to 3 percent of talc, 5 to 8 percent of kaolin and 6 to 8 percent of celadon pigment. The main crystalline phase of the celadon pigment is zirconium silicate, vanadium ions and iron ions playing a coloring role are wrapped outside the zirconium silicate, the molar concentration of the vanadium ions is 2%-4%, and the molar concentration of the iron ions is 1%-3%. According to the method, the vanadium iron ion celadon pigment wrapped by the high-temperature pre-stabilized zirconium silicate is used as the coloring agent, and the celeste blue glazed porcelain is fired in the non-reducing atmosphere, so that the core problem existing in the traditional firing in the reducing atmosphere is successfully solved. And ferrovanadium ions in the coloring agent are stably wrapped in zirconium silicate crystals and are not influenced by the fluctuation of the firing atmosphere, so that the consistency of the glaze color of the same batch of celeste glaze is ensured. Regulation and control of the celeste glaze color are achieved through the adding amount of the celadon pigment, operation is easy, convenient and visual, and dependence on technical experience of operators is reduced.

The application discloses a kind of multi-element mineral microwave dielectric ceramic materials and preparation method thereof, multi-element mineral microwave dielectric ceramic materials, by the following weight fraction raw materials sintering is obtained: 192~224 parts black talc, 160~192 parts wollastonite, 8~12 parts MgO, 4~8 parts SnO2, 2~4 parts kaolin tailings.Preparation method includes the following steps: broken fine sieving, obtain black talc powder, wollastonite powder and kaolin tailings powder;Take black talc powder and MgO powder, ball milling is mixed;Add wollastonite powder, continue ball milling;Drying, calcination, heat preservation, with furnace cooling;The obtained powder and proportionally weighed SnO2 powder, kaolin tailings powder, ball milling is uniformly mixed, drying;After powder preparation blank, sintering.The application improves the microwave dielectric properties of ceramic material, selects kaolin tailings powder as sintering additive, reduces sintering temperature under the premise of not reducing ceramic dielectric properties.

The invention relates to the technical field of black talcum powder production, in particular to an impurity removal device and method for black talcum powder production. The impurity removal device comprises a base, a discharging barrel is fixedly arranged in the base, two layers of filtering devices are arranged above the base, and first filtering nets are arranged in the filtering devices; the mesh number of the first filter screen on the first layer is smaller than that of the filter screen on the second layer; first filter screens are arranged in the two layers of filter devices, scraping plates rotating around the centers are arranged on the first filter screens in the two layers of filter devices, notches are formed in the side faces of the two layers of filter devices, discharging devices are arranged at the notches, and the discharging devices are used for discharging impurities. Impurities in the black talcum powder are removed in a multi-level mode, so that the impurity removing effect is better, and scrap iron in the black talcum powder is removed and collected.

The application relates to the technical field of ceramic glazes, and particularly discloses a high-stain-resistant ceramic glaze as well as a preparation method and application thereof. The high-stain-resistant ceramic glaze comprises the following raw materials in parts by weight: 30-40 parts of potassium feldspar, 15-25 parts of quartz, 5-15 parts of talc, 7-13 parts of calcium carbonate, 12-18 parts of kaolin, 6-8 parts of a stain-resistant agent, 0.4-0.7 parts of a fluorosilane-based functional material and 0.3-0.5 parts of sodium hexametaphosphate. The stain-resistant agent is expanded kaolin loaded with nano-zinc oxide or expanded kaolin loaded with nano-zinc oxide-rare earth oxide. The application fills glaze layer pores with expanded kaolin loaded with nano-zinc oxide to block the penetration of dirt, and the nano-zinc oxide cooperates with the fluorosilane-based functional material to form a low-surface-energy hydrophobic coating on the glaze surface to reduce dirt adhesion. The kaolin guarantees the uniform dispersion of functional components, and the potassium feldspar and quartz basic components are combined to construct a dense and stable glaze layer, so that the high-stain-resistant performance of the glaze is finally achieved.

This invention discloses a slab with a crystalline effect. The slab includes a blank layer, on the surface of which a glaze modifier is applied to form a glaze modifier layer. The glaze modifier comprises the following raw materials in parts by weight: 5-8 parts potassium feldspar, 4-7 parts calcined talc, 3-5 parts modified translucent stone agent, 3-5 parts calcium oxide, 2-4 parts barium oxide, 1-3 parts cobalt oxide, and 2-4 parts strontium carbonate modifier. The slab with a crystalline effect of this invention is formed by applying the glaze modifier. The glaze modifier uses potassium feldspar, calcined talc, calcium oxide, barium oxide, and cobalt oxide as a matrix. By adding strontium carbonate modifier and modified translucent stone agent, the two are synergistically enhanced, improving the crystalline effect of the product and increasing its stain resistance and easy-to-clean properties. Simultaneously, the product exhibits significant improvements in scrub resistance and alkali corrosion resistance.

The present application relates to the technical field of glaze, and particularly relates to a composite zircon white opal frit, a preparation method thereof, super-white glaze using the composite zircon white opal frit and ceramic tile. The raw materials of the composite zircon white opal frit include, in terms of weight parts, quartz 25-40 parts, calcined alumina 5-10 parts, potassium feldspar 20-35 parts, talc 3-10 parts, calcite 5-10 parts, calcium phosphate 5-10 parts, calcined shell 1-5 parts, zirconium boride 7-15 parts, zirconite sand 3-10 parts, kaolin 1-5 parts and zinc oxide 3-10 parts. The raw materials of the composite zircon white opal frit described above can make the composite zircon white opal frit have a high whitening effect; meanwhile, two cooling and holding processes are adopted in the cooling and holding stage, the content of SiO2, P2O5 and MgO in the chemical composition of the composite zircon white opal frit is adjusted, a large amount of fine needle-like MgSiO3 can be generated, and the opalescence and whiteness of the glaze are improved after the obtained composite opal frit is used in the glaze.

The invention discloses a talcum powder semi-finished product for improving pinhole property of water-based colored paint as well as a preparation method and application of the talcum powder semi-finished product. The talcum powder semi-finished product comprises the following raw material components in percentage by mass: 5-10wt% of a dispersing aid; 5-10 wt% of a defoaming auxiliary agent; 30 to 40 wt% of talcum powder; and 40 to 50 wt% of water. The talcum powder semi-finished product provided by the invention is added into the water-based colored paint, so that the probability of generating pinholes in the water-based colored paint can be obviously reduced, and other properties of the water-based colored paint cannot be influenced. The invention further provides a method for improving the pinhole property of the water-based colored paint, the method is easy and convenient to operate, rapid and effective, the water-based colored paint can be added in the preparation process of the water-based colored paint at any time so as to solve on-site paint diseases, and the method is not limited by the process.

The application provides a ceramic raw material iron red glaze and a preparation method thereof, and belongs to the technical field of inorganic material preparation. The ceramic raw material iron red glaze comprises the following components in parts by weight: 15.5-17.5 parts of potash feldspar, 22.5-23.5 parts of soda feldspar, 7-8 parts of white kaolin in Panxi region, 14-18 parts of quartz, 6-7 parts of calcite, 10-12 parts of calcined talc, 10-12 parts of bone powder and 14-16 parts of vanadium titanium magnetite. The bone powder comprises the following components in percentage by mass: 0.85-2.35% of SiO2, 0.36-0.74% of Al2O3, 44.56-46.75% of CaO, 0.76-1.50% of MgO, 0.03-0.12% of K2O, 0.53-0.86% of Na2O, 0.12-0.14% of Fe2O3, 0.03-0.05% of TiO2, 36.76-48.79% of P2O5, and the balance of inevitable impurities. The iron red glaze provided by the application is bright and dynamic, rich in changes, and has yellow silk-like flow lines interspersed in the sheet of fire red color, which is colorful and makes the whole vessel have the quality of being rare, noble and dignified. The application is mainly used for tea bowls, cups and other tea utensils, and can also be used for bowls, plates, toys, ink stones and other living utensils.

The present application relates to the technical field of foamed ceramics, and particularly relates to a radiation-proof foamed ceramic and a preparation process thereof. The radiation-proof foamed ceramic comprises the following raw materials in parts by weight: 20-50 parts of silico-alumina inorganic refractory, 15-50 parts of lead powder, 20-60 parts of barren waste, 0-15 parts of sand, 0-5 parts of calcined talc or magnesia soil; the radiation-proof foamed ceramic further comprises 0.12-0.15 parts by weight of a foaming agent and 0.1-0.35 parts by weight of high-viscosity sodium carboxymethyl cellulose, based on the total amount of the raw materials of the radiation-proof foamed ceramic. By adjusting the basic formula, the alkali metal oxide flux is reduced as much as possible, the lead powder and the alkaline earth metal are mainly used to act together, the silico-alumina inorganic refractory, the magnesia soil or the talc is introduced, and the foamed ceramic has good foaming effect under the condition of a large amount of lead. Meanwhile, a special firing system is set, the time of the high-temperature holding section in the firing system is strictly controlled, the holes formed after foaming are prevented from collapsing, the deformation is prevented, and the density and the strength of the finished product of the radiation-proof foamed ceramic are suitable.

The jade velvet glaze is prepared from the following raw materials in parts by weight: 20 to 30 parts of modified quartz body, 5 to 15 parts of yttrium oxide complex, 7 to 11 parts of potassium feldspar, 5 to 7 parts of albite, 4 to 6 parts of calcined talc and 3 to 5 parts of kaolin. According to the invention, four different degrees of bright and matte effects on the surface of the ceramic product are successfully realized by precisely regulating and controlling the glazing mode, the glaze layer thickness, the green body surface treatment, the firing temperature, the firing time and other process parameters, and rich decoration choices are provided for consumers.

This invention discloses a wear-resistant electrical porcelain glaze and its preparation method, belonging to the technical field of electrical porcelain insulators. The method includes the following steps: S1, adding graphene oxide and a surfactant to deionized water, stirring, ultrasonically dispersing for 10-12 hours, centrifuging, collecting the precipitate, and drying to obtain modified graphene oxide; the surfactant modifies the graphene oxide to improve its water dispersibility, allowing it to be uniformly dispersed in water without easily agglomerating or precipitating; S2, thoroughly mixing dried potassium feldspar, sodium feldspar, kaolin, quartz powder, calcined talc, ball clay, barium titanate, modified graphene oxide, and a dispersant by weight to obtain a mixture; S3, adding the mixture to a ball mill for ball milling, iron removal, and aging to obtain the wear-resistant electrical porcelain glaze. The wear-resistant electrical porcelain glaze provided by this invention has excellent wear resistance, and the preparation method is simple and easy to operate, showing good application and promotion prospects.