3520 results about "Silicon oxide" patented technology

The invention discloses a high-weather-resistance bismuth vanadate coating and a preparation method thereof, and belongs to the technical field of inorganic pigment modification. The high-weather-resistance bismuth vanadate coating comprises bismuth vanadate matrix particles, and the surfaces of the bismuth vanadate matrix particles are sequentially coated with an amorphous aluminum oxide layer, a cerium oxide layer and a fluorinated silicon oxide layer. The amorphous aluminum oxide layer is formed in an atomic layer deposition mode; the cerium oxide layer is formed by hydrothermal treatment of a cerium source. The preparation technology has accurate and controllable technological parameters, is suitable for industrial production, can replace the traditional toxic pigment containing lead and cadmium, and meets the requirements of environmental regulations. The bismuth vanadate coating has excellent weather resistance and chemical stability, the service life of a product can be prolonged, the maintenance cost is reduced, and a reliable solution is provided for development of high-performance environment-friendly pigments.

The invention belongs to the technical field of semiconductors, and discloses a method for manufacturing a sigma trench in a semiconductor device, which comprises the following steps of: providing a substrate which comprises a first device region and a second device region; a PMOS (P-channel Metal Oxide Semiconductor) region gate and a PMOS gate mask layer are formed on the first active region of the first device region; exposing the top of the PMOS gate mask layer outside the first device region photoresist layer; depositing a deposition silicon oxide layer on the top of the second device region and the top of the PMOS gate mask layer; removing the photoresist layer in the first device region; etching to remove the natural silicon oxide layer on the surface of the first active region, further etching silicon in the first active region, and forming a U-shaped groove in the semiconductor substrate in the first device region; and carrying out TMAH etching on the U-shaped groove to form a sigma groove. According to the invention, in the process of embedding germanium-silicon into the source and the drain, the height difference between the PMOS and the NMOS is avoided, and the subsequent process is not influenced.

The invention provides a high-hydrophobicity anti-pollution flashover coating and a preparation method thereof, and relates to the field of coatings. The silicone rubber composition is prepared from the following raw materials in parts by weight: 80 to 100 parts of hydroxyl-terminated polydimethylsiloxane; 5 to 15 parts of modified nano silicon dioxide; 10 to 30 parts of a composite self-repairing microcapsule; 10 to 25 parts of a flame retardant; 3-8 parts of a cross-linking agent; 0.5-2 parts of a catalyst; 1-5 parts of an accelerant; 40 to 100 parts of a solvent; the modified nano silicon dioxide is fumed silica subjected to surface treatment by a fluorine-containing silane coupling agent and a platinum catalyst; the capsule wall of the composite self-repairing microcapsule is a polylactic acid-glycolic acid copolymer, and the capsule core of the composite self-repairing microcapsule is a mixed solution of a hydroxyl-terminated polydimethylsiloxane oligomer and methyltris (methylethylketoximino) silane. The coating has excellent hydrophobicity, weather resistance and targeted repair function.

The invention provides a hydrogen sensor with an ultrafast hydrogen response speed and a preparation method thereof, the hydrogen sensor comprises a silicon oxide substrate and a double-interdigital electrode structure, the double-interdigital electrode structure comprises a titanium electrode layer, a tungsten enhancement layer and a palladium sensitive layer; an interdigital electrode pattern is arranged on the silicon oxide substrate, the titanium electrode layer covers the interdigital electrode pattern, the tungsten enhancement layer covers a pin area and a bridge arm resistance area of a titanium electrode, the palladium sensitive layer covers the titanium electrode layer and corresponds to the position of the interdigital electrode pattern, and the titanium electrode layer is directly arranged on the silicon oxide substrate. The structure is simple, the titanium electrode serves as the bottom electrode, the sensitivity and mechanical stability of the sensor are improved, the tungsten enhancement layers are arranged in the titanium electrode pin area and the bridge arm resistor area, and the overall conductivity and mechanical strength are improved.

The invention relates to the technical field of electrode paste, in particular to a preparation method of high-pressure-resistant high-strength graphite enhanced electrode paste, which comprises the following steps: sequentially performing oxidation modification and silane modification on crystalline flake graphite powder, preparing silane modified graphite powder, and synchronously preparing a boron-nitrogen source precursor; coating the aminated carbon quantum dots with silicon to obtain silicon-coated carbon quantum dots; preparing a composite adhesive, a tungsten carbide-aluminum nitride composite reinforced phase and carbon-plated silicon powder; the preparation method comprises the following steps: blending and kneading silane modified graphite powder, a boron-nitrogen source precursor and other components, and pressing under gradient pressure to obtain a green body; and performing segmented roasting on the green body, and cooling to obtain the target electrode paste. According to the invention, crystalline flake graphite oxidation-silane modification is adopted to optimize interfacial compatibility, silicon-coated carbon quantum dots are adopted to reinforce a bonding system, a composite reinforcement phase is adopted to construct a mechanical support network, boron-nitrogen source in-situ doping supplemental reinforcement is adopted, and gradient pressure pressing and segmented roasting are combined to ensure that the structure is compact. The normal-temperature compressive strength, high-temperature mechanical stability and compactness of the electrode paste are improved through the synergistic effect of all links, and the electrode paste can stably adapt to the high-temperature and high-load working conditions.

The invention provides a thermal response self-ceramization fireproof coating and a preparation method thereof. The thermal response self-ceramization fireproof coating is prepared from the following raw materials in parts by mass: 3 to 10 parts of acrylic monomer, 3 to 10 parts of organic sulfonate, 1 to 4 parts of silane coupling agent, 0.5 to 3 parts of silicate ester, 4 to 6 parts of ceramic precursor, 3 to 6 parts of fluxing agent and 0.05 to 0.4 part of initiator. The fluxing agent comprises a component A and a component B, the component A is one of boric oxide, zinc borate or low-melting-point glass powder, and the component B is one of phosphorus pentoxide and ammonium polyphosphate. The silane coupling agent can be copolymerized with an acrylic monomer to construct a C-C main chain, the C-C main chain and silicate ester are subjected to hydrolytic condensation to form a Si-O-Si three-dimensional network, a chemical cross-linked skeleton is formed, and the chemical cross-linked skeleton can generate silicon dioxide at high temperature to participate in a ceramization reaction; the ceramic precursor and silicate ester can form a strong physical cross-linking effect, so that the fireproof coating with a chemical and physical double-cross-linked network can be formed, and the fireproof coating has excellent mechanical property and machinability at normal temperature.

The invention provides a wastewater advanced oxidation catalyst and a preparation method and application thereof, the wastewater advanced oxidation catalyst is of a core-shell structure, the core is activated carbon containing copper oxide and optional ferrous sulfide, and the shell is a silicon oxide-aluminum oxide compound containing nano ferrous sulfide. The invention further provides a preparation method of the wastewater advanced oxidation catalyst and application of the wastewater advanced oxidation catalyst in organic wastewater treatment. The wastewater advanced oxidation catalyst has the characteristics of high catalytic degradation capability on organic pollutants and the like, solves the problem of copper dissolution, and improves the long-term effectiveness of the catalyst.

The invention belongs to the technical field of photovoltaic wet etching, and particularly relates to a low-concentration hydrofluoric acid composite etching solution and a preparation method and an etching process thereof, and the low-concentration hydrofluoric acid composite etching solution comprises the following components in percentage by mass: 5%-10% of hydrofluoric acid, 2%-5% of an etching additive and the balance of water; wherein the etching additive comprises the following components in percentage by mass: 8%-25% of a strong oxidant, 2%-5% of an etching accelerant, 0.5%-2% of an interface modification and mass transfer accelerant, 0.1%-3% of a product control and stabilizer, 0.1%-2% of an equipment compatible corrosion inhibitor and the balance of water; the strong oxidant is used for oxidizing silicon nitride to form a silicon oxynitride transition layer, the etching accelerant is used for providing HF molecules and HF2-ions, and the product control and stabilizing agent is used for complexing SiF62-ions generated by etching.

A bonded assembly includes a first semiconductor die containing first semiconductor devices and a first bonding pad embedded within a first silicon oxide layer, where the first bonding pad includes a first copper containing portion, a second semiconductor die containing second semiconductor devices and a second bonding pad that is embedded within a second silicon oxide layer and is bonded to the first bonding pad via metal-to-metal bonding, where the second bonding pad includes a second copper containing portion, and at least one metal silicon oxide layer interposed between the first bonding pad and the second silicon oxide layer. In one embodiment, the at least one metal silicon oxide layer is a manganese silicon oxide layer.

The present invention provides a negative electrode active material that can reduce the generation of ionic substances and suppress excessive decomposition of the electrolyte, thereby improving the battery cycle characteristics. [Solution] A negative electrode active material having negative electrode active material particles, the negative electrode active material particles including a porous carbon structure as a base material, the porous carbon structure having Si-C bonds inside and amorphous low-valent nano-silicon oxide dispersed in the surface layer, and at least a portion of the low-valent nano-silicon oxide having tetravalent silicon oxide capable of absorbing and desorbing Li.

The invention relates to the technical field of drilling compositions, in particular to a composite plugging agent, a plugging composition and plugging cement paste for shale gas formation cracks. The composite plugging agent for shale gas stratum cracks is composed of a bridging material, a filling material and an end-capping material, the mass ratio of the bridging material to the filling material to the end-capping material is (1.2-1.4): 0.5: (0.1-0.3), the bridging material is organic fibers with the length of 3-5 mm, the filling material is composed of inert particles with the particle size of 35-280 [mu] m and micro-silicon with the particle size of 0.15-1 [mu] m, and the end-capping material is a mixture of silicon oxide and silicon oxide. The end-capping material is composed of organic fibers with the length of 8-9 mm and walnut shells with the particle size of 3-5 mm. Through compounding of different types of bridging materials, filling materials and end sealing materials and grading of fibers with different lengths and plugging particles with different particle sizes, the plugging agent can be matched with cement paste in complex cracks and large cracks (1-4 mm) of a stratum to form a stable and compact plugging layer, the compressive strength is high, effective retention is achieved, and the effect of plugging a complex leakage layer is achieved.

The invention provides a manufacturing method of a shallow trench isolation structure. The manufacturing method comprises the following steps: patterning a pad oxide layer-silicon nitride layer laminated structure based on a photomask to obtain a first mask opening; etching the substrate to obtain an isolation groove; carrying out a pull-back process; depositing a sacrificial layer material in the isolation trench and the first mask opening; forming a shielding layer; patterning the shielding layer based on the photomask to obtain a second mask opening; removing the sacrificial layer material in the isolation groove and obtaining a sacrificial side wall located on the side wall of the opening of the silicon nitride layer; removing the shielding layer and depositing a silicon oxide layer in the isolation groove and the first mask opening; and removing the silicon nitride layer, the liner oxide layer and the sacrificial side wall. According to the method, the first mask opening and the second mask opening are formed in different steps based on the same photomask by adopting the pull-back process, the sacrificial side wall on the side wall of the opening of the silicon nitride layer is used for protecting the trench oxide layer from being lost in the subsequent removal process of the liner oxide layer, and the problem of a sunken region at the top edge of the shallow trench isolation region can be avoided or improved.

The invention relates to the technical field of functional ceramic materials, and discloses complex-phase gradient isomeric zinc spinel-based composite activated zinc oxide, a preparation method thereof and a ceramic glaze, and the preparation method comprises the following steps: mixing zinc oxide, aluminum oxide, silicon oxide, magnesium oxide and rare earth oxide in proportion to obtain a mixture, adding the mixture and an alkoxy compound into a solvent, and dispersing to form nano precursor slurry; carrying out reduction-oxidation calcination treatment on the obtained nano precursor slurry to obtain a calcined product; and carrying out hydration treatment on the obtained calcined product to obtain the complex-phase gradient isomeric zinc spinel-based composite activated zinc oxide. By implementing the preparation method, the obtained complex-phase gradient isomeric zinc spinel-based composite activated zinc oxide contains a zinc oxide phase and a spinel phase, is low in high-temperature lattice distortion rate and has super wear resistance, and a rare earth element R is introduced, so that the catalytic activity of the zinc oxide is improved, the degradation rate of the zinc oxide to formaldehyde and toluene is increased, and the antibacterial property of the zinc oxide is also improved.

Disclosed is a semiconductor device comprising a substrate including a first surface and a second surface that are opposite to each other, a via structure that penetrates the substrate, a first passivation pattern disposed on the first surface of the substrate and extending onto an upper sidewall of the via structure, and a second passivation pattern disposed on the first passivation pattern and exposing an uppermost surface of the first passivation pattern. At least a portion of the second passivation pattern is externally exposed. The first passivation pattern includes at least one selected from oxide and silicon oxide. The second passivation pattern includes at least one selected from nitride and silicon nitride.

The invention provides a silicon negative electrode material, a preparation method and a lithium ion battery, and relates to the technical field of battery negative electrode materials. Stable lithium compound nano-particles are deposited or converted on the inner wall of porous carbon, silicon or silicon oxide or silicon-lithium alloy is induced to form nano-particles in the vapor deposition process, and the nano-particles are distributed with the lithium compound nano-particles as the center. The lithium compound has a high boiling point, can stably provide crystallization sites for silicon during vapor deposition, and prevents agglomeration of silicon nanoparticles; the inorganic lithium compound is a lithium ion conductor, has high mechanical strength, can improve the dynamics of the silicon negative electrode during lithium intercalation and deintercalation, and slows down the expansion of the silicon negative electrode.

The invention provides a preparation method of a gate oxide layer and a gate, and the method comprises the steps: carrying out the rapid thermal annealing treatment of a silicon-based substrate in a nitrogen-containing gas atmosphere, which belongs to a non-destructive nitrogen doping mode, and carrying out the nitrogen pre-doping on the surface of the silicon-based substrate, so as to reduce the doping amount needed by the subsequent plasma nitrogen doping; therefore, the damage of the plasma nitrogen doping process to the SiON gate oxide layer is reduced, and the interface defect between the SiON gate oxide layer and the silicon-based substrate interface is reduced. Besides, after the nitrogen pre-doped layer is formed, the thermal oxidation process is carried out on the silicon-based substrate to form the silicon dioxide gate oxide layer, so that the damage to the SiON gate oxide layer film is reduced, and the interface defect between the SiON gate oxide layer and the silicon-based substrate interface is further reduced; moreover, the laser rapid annealing treatment can remove the intrinsic oxide layer on the surface of the SiON gate oxide layer, repair the damage to the crystal lattice of the SiON gate oxide layer caused by the plasma nitrogen doping treatment process, improve the film quality and repair the interface.

The invention provides multi-structure-layer flaky silver-coated aluminum powder, a preparation method of the multi-structure-layer flaky silver-coated aluminum powder and a conductive rubber material. The multi-structure-layer flaky silver-coated aluminum powder comprises flaky aluminum powder, a silicon dioxide layer and a silver layer, the silicon dioxide layer is coated on the surface of the flaky aluminum powder, and the silver layer is coated on the surface of the silicon dioxide layer. According to the multi-structure-layer flaky silver-coated aluminum powder, the preparation method thereof and the conductive rubber material, the multi-layer composite structure design of aluminum core-silicon dioxide layer-silver layer is adopted, the problems that aluminum powder is poor in stability and silver is prone to migration are solved, and the multi-structure-layer flaky silver-coated aluminum powder has the advantages of being low in cost and resistant to shearing; therefore, the novel white conductive filler with high performance, high stability and high applicability is obtained.

The invention discloses a water-based single-component super-amphiphobic refrigeration coating, a coating and a preparation method of the coating, and relates to the technical field of coatings. 20-35 parts of a second filler; 5-10 parts of a third filler; 20-35 parts of a film-forming substance, 1-9 parts of an auxiliary agent and 3-50 parts of water; the first filler comprises fluorine-containing silane modified fumed silica; the second filler comprises at least one of long-chain silane modified precipitated barium sulfate, long-chain silane modified calcium carbonate and long-chain silane modified hollow glass beads; the third filler comprises an infrared emission filler treated by an organic silicon modifier. By modifying the filler, the purposes of stable dispersion and functional synergy of low-surface-energy substances and high-proportion inorganic nano filler in a water-based system are achieved.

The invention discloses a preparation method of a nano silicon dioxide modified high-density polyethylene wear-resistant plate, and belongs to the technical field of polyethylene plates, the method comprises the following steps: firstly preparing an antioxidant PMMA microcapsule, then preparing titanium dioxide and silicon dioxide, and modifying by KH550 to obtain modified nano titanium-silicon composite particles; then, an antioxidant coated PMMA microcapsule, the modified nano titanium-silicon composite particles, POE-g-MAH and HDPE particles are premixed, and the wear-resistant plate is obtained through twin-screw extrusion granulation and pulsating force field assisted molding; through the synergistic effect of the antioxidant coated PMMA microcapsule, the modified nano titanium-silicon composite particles and the compatilizer POE-g-MAH, the problems that the wear resistance of the HDPE plate is insufficient and the antioxidant is easily adsorbed by nano silicon dioxide to cause aging resistance attenuation are solved, and the wear resistance, thermal oxidation / light aging resistance and mechanical property improvement of the plate are realized; and the requirements of high-frequency wear scenes such as mine conveying and outdoor engineering can be met.

The invention discloses a self-lubricating aluminum coating and a preparation method thereof.The preparation method comprises the steps that molybdenum disulfide is pretreated through a silane coupling agent, tetraethoxysilane mixed liquor is added, the pH is adjusted to be 9-10, a water bath reaction is conducted, and molybdenum disulfide-silicon dioxide microcapsules are obtained after high-temperature strengthening treatment; respectively adding a zinc nitrate solution and a hexamethylenetetramine solution, adjusting the pH value to 10-11, carrying out a high-temperature and high-pressure hydrothermal reaction to obtain zinc oxide nanorods, and carrying out ball milling treatment on the zinc oxide nanorods, microcapsules, stearic acid and zirconium oxide balls under the protection of argon to obtain doped microcapsules; after raw materials are pretreated, the raw materials and a dispersing agent solution are added into a mixer respectively, spraying powder, a pretreated base body and the spraying powder are obtained after mixing treatment, spraying treatment is conducted on the surface of the base body through a plasma spraying method, and the self-lubricating aluminum coating is obtained after vacuum annealing treatment. Therefore, the obtained self-lubricating aluminum coating is low in friction coefficient, high in performance and excellent in self-lubricating property.

The invention discloses a dual-emission molecular imprinting ratiometric fluorescence sensor, a preparation method thereof and application of the dual-emission molecular imprinting ratiometric fluorescence sensor in aureomycin detection, and belongs to the technical field of chemical sensors. The preparation method of the sensor comprises the following steps: preparing silicon dioxide-quantum dot composite nanoparticles, and preparing a molecularly imprinted polymer by taking salicylamide as a template molecule; and mixing the molecularly imprinted polymer and the silicon dioxide-quantum dot composite nanoparticles in an HEPES buffer solution by adopting a post-mixing strategy to construct the dual-emission molecularly imprinted ratiometric fluorescence sensor. The double-emission molecular imprinting ratiometric fluorescence sensor has the beneficial effects that the double-emission molecular imprinting ratiometric fluorescence sensor provided by the invention is rich in fluorescence color change, rapid, high-sensitivity and visual detection of aureomycin can be realized, the whole detection process is simple, convenient and rapid, and the double-emission molecular imprinting ratiometric fluorescence sensor is suitable for being widely popularized in practical application.

The application provides a negative electrode material and a preparation method thereof and a secondary battery, and relates to the technical field of battery materials. The negative electrode material comprises a silicon-based inner core and a carbon layer coated on the surface of the silicon-based inner core, wherein the silicon-based inner core comprises nanosilicon and a silicate containing a metal element M; the negative electrode material is subjected to section analysis and energy spectrum analysis, and meets the conditions of k1<=10, k2<=5 and 0.1 The preparation method of the negative electrode material comprises the following steps: heating and evaporating pre-disproportionated silicon monoxide material and M metal source material to obtain silicon monoxide gas and metal source gas; mixing and condensing the two kinds of gas to obtain an inner core material; and performing carbon coating treatment to obtain the negative electrode material. In the negative electrode material prepared by the application, the metal silicate effectively separates the nanosilicon domain and the silicon oxide domain, and is uniformly distributed, and the negative electrode material has high initial efficiency and excellent cycle performance.

The invention discloses a grading reaction crystallization recovery process and system for semiconductor fluorine-containing and phosphorus-containing waste liquid, the fluorine-containing and phosphorus-containing waste liquid and a lime solution react in a fluorine recovery crystallization reactor under the condition that the pH is 3-4 to form calcium fluoride crystals, and the calcium fluoride crystals are dehydrated to obtain calcium fluoride particle crystal products; the effluent of the fluorine recovery crystallization reactor, the calcium fluoride crystal dehydration filtrate, the lime solution and the calcium chloride solution react in a secondary reaction tank under the condition that the pH is 5-6, and calcium fluoride, fluorapatite, silicon dioxide and silicon-aluminum precipitates are removed through coagulation, flocculation and precipitation; effluent of the second-stage reaction tank, the lime solution and the calcium chloride solution react in the phosphorus recovery crystallization reactor under the condition that the pH is 7-8 to generate hydroxyapatite crystals, and the hydroxyapatite crystals are dehydrated to obtain hydroxyl calcium phosphate particle crystal products. Meanwhile, a high-purity calcium fluoride crystal product and a hydroxyl calcium phosphate crystal product are produced, and fluorine and phosphorus are recycled.

The invention relates to an epoxy resin composite insulating material and a preparation method and application thereof, and belongs to the technical field of insulator equipment. The epoxy resin composite insulating material is prepared from the following raw materials: epoxy resin, nano filler, a surface modifier, aluminum oxide particles, a flame retardant, an organic solvent, a curing agent and an accelerant. The nanofiller is at least one of the following nanoscale materials: titanium dioxide, graphene oxide, carbon nitride, zinc oxide, boron nitride and silicon dioxide; the surface modifier is a silane coupling agent and is used for surface modification of the nano filler; the flame retardant is at least one of a phosphorus flame retardant, a nitrogen-phosphorus synergistic flame retardant and a brominated flame retardant. The insulating material provided by the invention has high thermal stability, high insulativity and carbon precipitation inhibition capability, can effectively inhibit carbon precipitation of epoxy resin under the action of thermal and electric stress, and has good comprehensive performance.

The invention relates to the technical field of shield tunnel construction, and discloses a shield tunnel segment joint waterproof material and a waterproof structure, the shield tunnel segment joint waterproof material comprises a component A and a component B; the component A comprises the following component: 30-40 parts of liquid polysulfide rubber; 5 to 10 parts of a fluorinated polyurethane prepolymer; 1-5 parts of a silane coupling agent; 3-5 parts of fumed silica; 8-15 parts of hollow glass beads; 10 to 15 parts of nano calcium carbonate; 0.5 to 2 parts of polytetrafluoroethylene micro powder; 0.1 to 1 part of ettringite; the component B comprises the following component: 1-5 parts of manganese dioxide; and 5 to 10 parts of dioctyl phthalate. By utilizing the characteristics that the sealing gasket has excellent fluidity during injection and can be automatically cured into a high elastomer within a set time, a pre-installed sealing gasket can be replaced by adopting an innovative injection process, and the construction difficulty faced by high-precision shield segment assembly in a high-water-pressure environment is effectively solved.

A method used in forming a memory array comprising strings of memory cells comprises forming an upper stack directly above a lower stack. The lower stack comprises vertically-alternating lower-first-tiers and lower-second-tiers. The upper stack comprises vertically-alternating upper-first-tiers and upper-second-tiers. Lower channel openings extend through the lower-first-tiers and the lower-second-tiers. The lower channel openings have sacrificial material therein. An upper of the lower-second-tiers or a lower of the upper-second-tiers comprises non-stoichiometric silicon dioxide that has a silicon-to-oxygen atomic ratio greater than 0.5. A higher of the upper-second-tiers that is above said lower upper-second-tier comprises silicon dioxide that has a silicon-to-oxygen atomic ratio less than or equal to 0.5. Upper channel openings are etched through the upper-first-tiers and the upper-second-tiers to stop on said upper lower-second-tier or said lower upper-second-tier. After the stop, the sacrificial material is removed from the lower channel openings and channel-material strings are formed in the upper and lower channel openings. Other embodiments, including structure independent of method, are disclosed.

The invention discloses a high-aluminum wear-resistant ceramic grinding ball and a preparation method thereof. The grinding ball comprises the following raw materials in percentage by weight: 85%-95% of aluminum oxide, 2%-10% of silicon dioxide, 1%-3% of calcium carbonate, 0.2%-0.5% of magnesium carbonate, 0.03%-0.05% of titanium dioxide, 0.01%-0.03% of sodium oxide and 1%-5% of modified zirconium dioxide. The preparation method of the modified zirconium dioxide comprises the following steps: adding hydrogen peroxide into a mixed solution of soluble cerium salt and soluble zirconium salt to obtain a reaction system; adding the reaction system into an alkaline solution for reaction, and collecting an insoluble substance after the reaction is finished; and calcining the insoluble substance to obtain the modified zirconium dioxide. The ceramic ball is simple in formula, rich in raw materials, low in price and low in production cost, the operation stability of the ceramic ball is improved, and the service life is prolonged.

The invention discloses antibacterial glaze paste for a ceramic false tooth and a preparation method thereof, and belongs to the technical field of antibacterial glaze paste manufacturing, the antibacterial glaze paste for the ceramic false tooth comprises: 70-95% of glaze powder matrix composed of feldspar, quartz, kaolin and calcium carbonate; the antibacterial agent is composed of zinc oxide and bismuth oxide, the molar ratio of the bismuth oxide to the zinc oxide is 5%-18%, the surfaces of particles of the antibacterial agent are coated with a plurality of silicon dioxide shell layers, the thickness of the shell layers is 3-15 nm, and the shell layers are treated through a coupling agent; the antibacterial agent can further contain a trace amount of silver or copper nanoparticles with the mass fraction of 0.01-0.3%, and through the synergistic effect of zinc oxide and bismuth oxide, limited release of multiple SiO2 shell layers and addition of a trace amount of Ag / Cu, the ceramic false tooth antibacterial glaze paste can keep efficient antibacterial ability for a long time without external illumination or special excitation conditions, the antibacterial rate is larger than or equal to 98%, and the antibacterial effect is good. The method is obviously superior to uncoated or single-step sintered contrast samples.

The invention relates to a wear-resistant waterproof cable sheath material and a preparation method thereof, and belongs to the technical field of cable materials. The cable sheath material is prepared by self-making a modifier and blending the modifier with a fumed silica modified filler modified by a perfluoroalkyl silane coupling agent, FEP and polyethylene. Perfluoroalkyl of the modified filler and FEP cooperate to improve the water resistance and corrosion resistance of the material; the modifier can enhance the polarity of a polyethylene matrix, forms polarity gradient matching with other components of the system, enhances the interfacial compatibility, and improves the mechanical properties of the material; a benzotriazole structure in the modifier can prevent the material from being damaged by ultraviolet irradiation; besides, during combustion, phosphorus in the material forms a carbon layer on the surface, nitrogen in benzotriazole serves as a foaming agent to expand the carbon layer, efficient flame retardance is achieved synergistically, the material has excellent ultraviolet resistance and flame retardance, and the service life of the material is prolonged.

The invention relates to the technical field of photovoltaic glass coatings, and discloses an anti-reflection liquid with a self-repairing function, a preparation method of the anti-reflection liquid and an organic-inorganic hybrid coating prepared from the anti-reflection liquid. The polyurethane-silicon dioxide composite resin with a disulfide bond structure is introduced, so that an automatic repairing function of the coating when the coating is damaged by slight scratches or cracks and the like is realized; by adopting an in-situ hybridization strategy, SiO2 particles are uniformly generated and stably dispersed in a polyurethane matrix to form a compact and synergistically enhanced composite network structure, so that excellent optical performance is maintained while functionality is achieved, and the power generation efficiency of a photovoltaic module is favorably improved; by adjusting the hydrophobicity of the surface of the coating, the super-hydrophobic effect is achieved; the preparation method is mild in process conditions.