41 results about "Zinc molybdate" patented technology

The invention discloses an aerogel fire extinguishing agent for fire fighting, a fire extinguishing device and a releasing method.The aerogel fire extinguishing agent for fire fighting is prepared from, by mass, 8-12 parts of silicon dioxide aerogel powder, 40-45 parts of perfluorohexanone, 1.5-2 parts of zinc molybdate, 0.8-1.2 parts of nano cerium oxide, 2-3 parts of hyperbranched polysiloxane and 0.2-0.3 part of 18-crown-6 ether. Solid-phase silicon dioxide aerogel powder is matched with liquid-phase perfluorohexanone, zinc molybdate, nano cerium oxide, hyperbranched polysiloxane, 18-crown-6 ether and the like are compounded to serve as auxiliaries, efficient fire extinguishing can be conducted on precise electrical elements, residues are few, loss of instruments and equipment is small, and the fire extinguishing agent is suitable for being applied to the electrical field.

The invention relates to the field of anticorrosive paint, in particular to anticorrosive paint containing lanthanum cerium oxide and a preparation method of the anticorrosive paint. The invention relates to an anticorrosive coating containing lanthanum cerium oxide. The anticorrosive coating is prepared from the following raw materials: 28 to 45 parts of ultraviolet stable composite film forming matter, 5 to 10 parts of composite rare earth filler, 6 to 12 parts of supported synergistic antirust agent, 18 to 30 parts of mixed solvent, 0.8 to 2.5 parts of dispersing agent, 2.7 to 5.3 parts of functional additive and 0.5 to 1.2 parts of nano montmorillonite, the composite rare earth filler is lanthanum cerium oxide-hydroxyapatite composite powder with a core-shell structure, wherein lanthanum cerium oxide is used as a core, hydroxyapatite is used as a shell, and the thickness of the shell layer is 10-20 nm; the ultraviolet stable composite film forming substance comprises epoxy resin and ultraviolet grafting modified polyurethane in a weight ratio of 1: (0.6-2.2); the supported synergistic antirust agent is a mixture of mesoporous silica supported benzotriazole and zinc molybdate. And the obtained coating is high in adhesive force and long in service life.

The invention is suitable for the technical field of MCA, and provides an MCA / PA6 flame-retardant composite material and a preparation method thereof. Comprising the following components in parts by weight: 50-60 parts of MCA, 15-20 parts of PA6, 15-25 parts of long glass fiber, 3-8 parts of metal hydroxide, 0.5-1.5 parts of titanium dioxide, 0.3-0.6 part of an antioxidant, 1-2 parts of nano silicon dioxide, 1-3 parts of zinc molybdate, 2-5 parts of aluminum hypophosphite, 1-2 parts of silicone resin, 0.5-1 part of carbodiimide and 5-8 parts of a toughening agent. The MCA / PA6 flame-retardant composite material disclosed by the invention combines the flame-retardant property of MCA and the excellent physical property of PA6, so that the flame-retardant property of the material is remarkably improved, and meanwhile, the original characteristics of light weight, good toughness, chemical resistance, good durability and the like of PA6 are maintained. By adding the long glass fiber, the metal hydroxide, the titanium dioxide, the antioxidant, the nano silicon dioxide, the zinc molybdate, the aluminum hypophosphite, the silicone resin, the carbodiimide, the flexibilizer and other components, the strength, the heat resistance and the flame retardant effect of the composite material are further enhanced.

The present application relates to the technical field of copper clad laminates, and discloses a copper clad laminate, a resin composition for the copper clad laminate, and spherical silicon and a preparation method therefor. The spherical silicon of the present application is composed of spherical silicon dioxide and zinc molybdate particles dispersedly grown on the surface of the spherical silicon dioxide in situ and has a diameter of less than 10 microns and a D50 of 0.6-6 microns. The content of zinc molybdate per unit area on the surface of the spherical silicon dioxide is 0.03-1 g / m2, and the size of the zinc molybdate particles is less than or equal to 400 nm. The preparation method comprises: enabling spherical silicon dioxide to come into contact with / be mixed with a soluble molybdate and a zinc salt in an aqueous reaction system; and reacting the soluble molybdate with the zinc salt in situ on the surface of the spherical silicon dioxide, so as to form spherical silicon chemically coated with zinc molybdate particles. In the present application, by directly synthesizing the zinc molybdate in situ on the surface of the spherical silicon dioxide by means of a hydrothermal method, the structural morphology of the obtained spherical silicon and the size of the zinc molybdate particles can be effectively controlled, thereby ensuring that the wear of a drill bit during the drilling of the copper clad laminate is effectively mitigated.

The invention provides a resin sheet, a metal base substrate and a power module. The resin sheet, the metal base substrate and the power module have excellent thermal conductivity and low residual volatile component amount and can maintain insulation reliability. Provided is a metal base substrate comprising a resin sheet and a copper plate, the resin sheet containing an epoxy resin (A), an inorganic filler (B), and a curing agent (C), and the copper plate having a surface roughness Ra of 0 [mu] mlt; ra < = 2.0 [mu] m, and the inorganic filler (B) contains talc (B-1) the surface of which is coated with zinc molybdate.

The invention discloses a preparation method of a voltage-breakdown-resistant anticorrosive functional filler, and belongs to the field of preparation of coating fillers. The boron nitride nanosheet is subjected to surface amination modification, then zinc molybdate grows in situ, finally, ester compound hydrolytic condensation is utilized for surface treatment, and the composite filler with multiple functions of physical shielding, efficient insulation and active corrosion inhibition is successfully constructed. According to the method, not only can the dispersity and interface bonding force of the filler in the resin be effectively improved and the defects of the coating be reduced, but also the insulation barrier characteristic of boron nitride and the electrochemical anti-corrosion effect of zinc molybdate can be synergistically exerted, so that the long-term corrosion resistance and high-voltage electric breakdown resistance of the coating in a severe environment can be remarkably enhanced.

The invention relates to the field of solid wood composite floors, and discloses a waterproof and wear-resistant solid wood floor and a preparation method thereof.The waterproof and wear-resistant solid wood floor comprises a solid wood floor body and waterproof and wear-resistant paint, and the waterproof and wear-resistant paint comprises modified acrylic emulsion, a modified additive and auxiliaries; the modified acrylic emulsion comprises methyl methacrylate, butyl acrylate, modified attapulgite and the like; the modified attapulgite is prepared by coating attapulgite with zinc molybdate by using a precipitation method and then grafting with a modified silane coupling agent prepared by reacting acrylamide and 3-(2, 3-epoxypropoxy) propyltrimethoxysilane; according to the modified additive, pentaerythritol phosphate is used for replacing phosphorus oxychloride and then continues to be substituted with N, N '-bis-(2, 2, 6, 6-tetramethyl-4-piperidyl)-1, 6-hexamethylenediamine, and then tetraethoxysilane and vinyltriethoxysilane are used for modifying an obtained modified flame-retardant intermediate, so that the flame-retardant flame-retardant material is prepared. According to the invention, the solid wood floor is endowed with high hardness, water resistance and wear resistance through the waterproof wear-resistant coating, and has excellent flame-retardant effect and ultraviolet aging resistance.

The invention discloses a preparation method and application of a zinc negative electrode of a pre-corrosion in-situ modified water-based zinc ion battery, and provides the water-based zinc ion battery at the same time. The zinc negative electrode of the pre-corrosion modified aqueous zinc ion battery is one of a pre-corrosion in-situ zinc tungstate composite zinc electrode (ZnWO), a pre-corrosion in-situ zinc molybdate composite zinc electrode (ZnMoO), a pre-corrosion in-situ zinc vanadate composite zinc electrode (ZnVO) and a pre-corrosion in-situ zinc silicate composite zinc electrode (ZnSiO). The application of the corrosion reaction on the surface of the metal zinc negative electrode is discussed for the first time, the corrosion reaction on the surface of zinc is utilized to form the corresponding compact, multifunctional, stable and insoluble pre-corrosion in-situ zinc salt composite zinc electrode, various side reactions are relieved, uniform zinc deposition is guaranteed, the zinc is not prone to falling off in the repeated zinc deposition stripping process, and the service life of the zinc electrode is prolonged. And finally, stable and long-acting application of the aqueous zinc ion battery is realized.

This invention provides a durable fire-retardant coating for steel structures, its preparation method, and its application, belonging to the field of fire-retardant coating technology. The coating uses a water-based organosilicon-modified acrylic resin emulsion as the base material, combined with flame-retardant components such as ammonium polyphosphate and melamine, as well as functional components such as modified nano-silica, modified carbon nanotubes, self-healing microcapsules, and zinc molybdate, and is prepared through a specific mixing and dispersion process. This invention achieves integrated fire resistance, corrosion protection, and self-healing functions through the synergistic effect of its components. It possesses advantages such as high fire resistance limit, good char layer stability, smoke suppression and environmental friendliness, strong corrosion resistance, and rapid self-healing response. Furthermore, it is convenient to apply and forms a uniform film, meeting the protection needs of steel structures in various scenarios, including conventional, humid, high-temperature, and high-risk environments. It solves the problems of existing coatings having single functions and unbalanced performance, demonstrating significant practicality and promotional value.

This invention relates to the field of coating technology, specifically to a corrosion-resistant coating for color-coated aluminum sheets and strips and its preparation method. The coating comprises the following components by weight: 45-60 parts modified fluorocarbon resin emulsion, 18-28 parts composite modified anti-corrosion pigment, 8-12 parts nano-zirconia dispersion, 1-2 parts silane coupling agent, 0.5-1.5 parts anti-corrosion additive, 0.2-0.5 parts leveling agent, 0.3-0.8 parts dispersant, 0.1-0.3 parts defoamer, 10-20 parts deionized water, and 6-10 parts water-based isocyanate curing agent. The composite modified anti-corrosion pigment comprises zinc phosphate and modified zinc molybdate in a mass ratio of 6-7:3. Through reasonable formulation and synergistic effects, this corrosion-resistant coating improves the coating's corrosion resistance, adhesion, rheological properties, and long-term stability.

The application belongs to the technical field of metal anticorrosion ink, and discloses a weather-resistant modified acrylic resin ink and a preparation process thereof; the weather-resistant modified acrylic resin ink comprises, by weight fraction, 40-60 parts of fluorosilicon modified acrylic resin emulsion, 5-15 parts of functionalized nano corrosion inhibitor, 3-8 parts of blocked isocyanate crosslinking agent, 10-20 parts of bulk filler, 1-5 parts of additive, and 10-25 parts of deionized water; the fluorosilicon modified acrylic resin emulsion has a core-shell structure, and the shell layer is directionally enriched with fluorosilicon functional chain segments; the functionalized nano corrosion inhibitor is silane grafted modified nano silicon dioxide loaded with zinc molybdate; and the blocked isocyanate crosslinking agent has an unblocking temperature of 100-120 DEG C. The weather-resistant modified acrylic resin ink has good environmental protection compliance and single-component storage stability, excellent weather resistance and water resistance, good corrosion inhibitor dispersity and long corrosion inhibitor release time, and a high-density cured coating, thereby effectively improving the long-acting anticorrosion capacity of a metal substrate and meeting the coating and protection requirements of various outdoor metal components.

The present application relates to solid wood composite floor field, disclose a kind of waterproof wear-resistant solid wood floor and its preparation method, including solid wood floor and waterproof wear-resistant coating, waterproof wear-resistant coating includes: modified acrylic emulsion, modified additive, auxiliary agent;Modified acrylic emulsion includes: methyl methacrylate, butyl acrylate, modified attapulgite etc.;Modified attapulgite is coated with zinc molybdate after using precipitation method with the modified silane coupling agent prepared by using acrylamide and 3-(2,3-epoxypropoxy) propyl trimethoxysilane reaction Grafting is made;Modified additive is substituted with N,N'-bis-(2,2,6,6-tetramethyl-4-piperidyl)-1,6-hexanediamine after using pentaerythritol phosphate ester Substitution continues, then the modified flame-retardant intermediate obtained is modified with tetraethyl orthosilicate and vinyltriethoxysilane, and is made into, the present application is endowed with high hardness and waterproof wear resistance to solid wood floor by waterproof wear-resistant coating, and has excellent flame-retardant effect and ultraviolet aging resistance.

The application relates to the field of anticorrosive coatings, in particular to an anticorrosive coating containing lanthanum cerium oxide and a preparation method thereof. The anticorrosive coating containing lanthanum cerium oxide comprises the following raw materials: 28-45 parts of ultraviolet stable type composite film forming substances, 5-10 parts of composite rare earth fillers, 6-12 parts of supported type synergistic antirust agents, 18-30 parts of mixed solvents, 0.8-2.5 parts of dispersants, 2.7-5.3 parts of functional additives and 0.5-1.2 parts of nano montmorillonite. The composite rare earth fillers are core-shell structure lanthanum cerium oxide-hydroxyapatite composite powders with lanthanum cerium oxide as the core and hydroxyapatite as the shell, and the shell thickness is 10-20 nm. The ultraviolet stable type composite film forming substances comprise epoxy resin and ultraviolet graft modified polyurethane with a weight ratio of 1: (0.6-2.2). The supported type synergistic antirust agent is a mixture of mesoporous silica loaded benzotriazole and zinc molybdate. The obtained coating has strong adhesion and long service life.

The invention relates to the use of a triclinic form of zinc molybdate (ZnMoO4) as an antimicrobial agent, to composite materials which comprise such zinc molybdate, and to processes for the production thereof.

The invention discloses an inorganic anti-corrosion and fireproof integrated coating material for a power grid steel structure as well as preparation and application of the inorganic anti-corrosion and fireproof integrated coating material. 40-60 parts of a composite anticorrosive filler; 15 to 20 parts of pure acrylic emulsion; 5-10 parts of expanded graphite; 0.3 to 0.5 part of a zirconium aluminate coupling agent; wherein the composite anti-corrosion filler is aluminum powder modified zinc molybdate with the weight percentage of aluminum powder being 20-30%. During application, the coating is sprayed on the surface of a steel structure, the total thickness of a dry film after spraying is 2-5mm, and the dry film is cured at room temperature to form a coating. The coating material forms an anti-corrosion and fireproof synergistic mechanism, and experimental results show that when the total thickness of a sprayed dry film is 5mm, the service life is more than or equal to 25 years, and the fire endurance is more than or equal to 3 hours.

The invention belongs to the technical field of recycling of waste lead-acid storage battery shells, and particularly relates to low-heavy-metal high-strength regenerated storage battery shell PP particles and a preparation method thereof. According to the method, heavy metal impurities in a shell are deeply removed through a multi-stage purification process, two modified compounds are prepared and applied, lanthanum zinc molybdate synthesized through a citric acid complexing method is adopted as a heavy metal trapping agent, and zirconium silicate coated boron nitride of a core-shell structure constructed through surface modification and a sol-gel process is adopted as a reinforcing phase. A polypropylene base material subjected to deep purification, the modified compound, the epoxy functionalized chain extender, the antioxidant, the flexibilizer and the like are subjected to melt blending and extrusion granulation, finally prepared regenerated particles are extremely low in heavy metal content and have high tensile strength and impact toughness, the performance completely meets the manufacturing standard of a new storage battery shell, and the regenerated particles are suitable for large-scale production. And high-value recycling of waste resources is realized.

The preparation method comprises the following steps: uniformly mixing zinc nitrate, terephthalic acid, absolute ethyl alcohol, deionized water and N, N-dimethylformamide, and carrying out a stirring reaction at 40-60 DEG C to obtain a solution A; cooling, washing, filtering and drying the solution A to obtain a metal organic framework In-MOF; the preparation method comprises the following steps: mixing zinc molybdate and a metal organic framework In-MOF, and stirring at a high speed at normal temperature for 20-40 minutes to obtain the flame retardant. The invention also discloses a flame-retardant PET composite material which is prepared from the following components in parts by weight: 94.5 to 104.5 parts of PET, 15 to 17 parts of flame retardant and 0.1 to 0.5 part of antioxidant. The PET generates CO in the combustion process, and the Zn-MOF can reduce the emission of toxic gases such as CO in the polymer combustion process by virtue of the adsorption and oxidation characteristics of the Zn-MOF on CO. The Zn-MOF material can decompose NH3 and other nonflammable gases and zinc oxide at high temperature, and the flame retardant purpose of the polymer material can be achieved by diluting the concentration of oxygen and other nonflammable gases and isolating oxygen and air.

The present invention provides a flame-retardant resin composition which is excellent in flame retardancy and heat resistance and is less likely to cause blooming. The present invention relates to a flame-retardant polypropylene resin composition characterized by comprising: (A) a polypropylene resin: 100 parts by weight; (B) a mixture of specific bisphenol S derivatives: 2 to 50 parts by weight; (C) at least one of (c1) tetrabromobisphenol A bis(2,3-dibromopropyl) ether and (c2) tris(2,3-dibromopropyl) isocyanurate: 0.2 to 20 parts by weight; and (D) at least one of antimony trioxide, antimony pentoxide, zinc molybdate, boron trioxide and zinc borate: 1 to 20 parts by weight.

This invention provides a method for preparing zinc molybdate and its application in preventing metal corrosion, relating to the field of chemical technology. For the first time, this invention utilizes sodium dodecylbenzenesulfonate (SDBS), polyoxyethylene-polyoxypropylene block copolymer (F-68), and polyacrylamide (PAM) to prepare novel zinc molybdates with different morphologies via a hydrothermal method. In this invention, the aforementioned novel zinc molybdate is introduced as a functional filler into epoxy resin to prepare a composite anti-corrosion coating. It was found that the prepared anti-corrosion coating exhibits superior long-term anti-corrosion performance, providing a theoretical basis and experimental foundation for developing efficient and controllable zinc molybdate-based anti-corrosion fillers.

The invention discloses a rare earth modified high-density heat-conducting heat-insulating anticorrosive coating and a preparation method thereof, and belongs to the technical field of functional coatings. The coating is prepared from the following raw materials: film-forming resin, rare earth modified heat-conducting and heat-insulating filler, a long-acting anti-corrosion component, an auxiliary agent, a solvent and a curing agent, the film-forming resin is a compound of modified epoxy resin and polyester resin; the heat-conducting and heat-insulating filler is composed of a rare earth compound, hollow glass beads and nano SiO2; and the anti-corrosion component is a compound system of zinc-aluminum alloy powder, zinc molybdate and aluminum triphosphate. Through rare earth surface modification, the compatibility of filler and resin and the compactness of a coating are remarkably improved, and efficient heat insulation and long-acting corrosion prevention are synergistically achieved. The coating is suitable for long-acting protection of equipment and pipelines in harsh industrial environments of high temperature, high humidity, strong corrosion and the like.

The invention discloses a modified quaternary ammonium salt and a preparation method thereof, modified zinc molybdate, a coating and a workpiece. The preparation method of the modified quaternary ammonium salt comprises the following steps: in a nitrogen environment, carrying out a first reaction on octanoic acid and hydroxyethyl ethylenediamine in xylene, and then adding ethanol and phosphorus oxychloride to carry out a second reaction so as to prepare the modified quaternary ammonium salt. The prepared modified quaternary ammonium salt has excellent corrosion resistance, the corrosion resistance of a base material in a high-corrosion environment can be remarkably improved, and the service life of the base material is prolonged for a long time. Meanwhile, the modified quaternary ammonium salt is further loaded in the zinc molybdate tube nano material, so that the slow release function of the modified quaternary ammonium salt can be realized, and the long-term protection effect on the base material is further improved. The modified quaternary ammonium salt prepared by the method can be widely applied to a high-corrosion environment.

The invention provides a nano high-molecular active antirust agent which is prepared from the following components in percentage by weight: 5.00% to 10.00% of nano zinc oxide, 5.00% to 10.00% of nano silicon dioxide, 9.00% to 15.00% of triethanolamine borate, 3.00% to 6.00% of zinc molybdate, 8.00% to 14.00% of 2-propyl heptanol polyoxyethylene ether, 4.00% to 10.00% of lauryl sodium sulfate, 2.00% to 7.00% of an amino methoxy silane coupling agent, 1.00% to 5.00% of epoxy resin and the balance of water. The antirust agent not only has excellent antirust performance, but also can adapt to various complex use environments. And the paint is non-toxic and environment-friendly.

The invention discloses a high and low temperature resistant flame-retardant wire and cable insulating layer and a preparation method thereof, and the insulating layer comprises an ethylene vinyl acetate copolymer, a polyolefin elastomer, organosilicon modified polyolefin, nano magnesium hydroxide with the surface coated with zinc molybdate, microencapsulated red phosphorus, zinc borate, short carbon fiber, modified montmorillonite, and a boron-containing siloxane dynamic cross-linking agent. An antioxidant, an ultraviolet light absorber, a lubricant, a coupling agent and phosphorus boron siloxane; the invention belongs to the technical field of cable insulating layers, and particularly relates to a high and low temperature resistant flame-retardant wire and cable insulating layer. By introducing the phosphorus-boron siloxane, the problems that the flame retardant property and the performance of a traditional insulating material are difficult to consider in a wide temperature range, the processability and the toughness are reduced due to high filling, embrittlement is easily caused at a low temperature, and the high-temperature structural stability is insufficient are effectively solved.

The invention relates to the technical field of coatings, in particular to a corrosion-resistant coating for a color-coated aluminum plate strip and a preparation method of the corrosion-resistant coating. The coating is prepared from the following components in parts by weight: 45 to 60 parts of modified fluorocarbon resin emulsion, 18 to 28 parts of composite modified anticorrosive pigment, 8 to 12 parts of nano zirconium oxide dispersion liquid, 1 to 2 parts of silane coupling agent, 0.5 to 1.5 parts of anticorrosive additive, 0.2 to 0.5 part of flatting agent, 0.3 to 0.8 part of dispersing agent, 0.1 to 0.3 part of defoaming agent, 10 to 20 parts of deionized water and 6 to 10 parts of waterborne isocyanate curing agent. The composite modified anticorrosive pigment comprises zinc phosphate and modified zinc molybdate in a mass ratio of (6-7): 3; according to the corrosion-resistant coating, through reasonable proportioning and synergistic effect, the corrosion resistance, the adhesive force, the rheological property and the long-term stability of the coating are improved.

The invention discloses a preparation method of a functional filler for an epoxy anticorrosive coating, and relates to the field of preparation of coating fillers. The functional filler prepared by the invention realizes firm loading of the nano zinc molybdate on the surface of the zinc oxide nanosheet, effectively integrates the physical shielding effect of the zinc oxide nanosheet and the antirust effect of the zinc molybdate, and endows the flaky filler with dual functions. The functional filler prepared by the invention has reaction activity with epoxy resin, realizes tight combination of the filler and film-forming resin, reduces internal defects of a coating, and improves the penetration resistance of the coating. The epoxy anticorrosive paint prepared from the functional filler prepared by the invention has more excellent corrosion resistance.

The invention discloses an electrical steel insulating coating which comprises the following components in percentage by total mass: 25%-35% of aluminum dihydrogen phosphate, 10%-20% of polyurethane-acrylate-ethylene oxide resin, 5%-10% of zinc molybdate, 15%-25% of colloidal silicon dioxide, 1%-5% of an auxiliary agent, 1%-2% of polyether-ether-ketone, 5%-15% of glycerol and the balance of deionized water. The invention further discloses electrical steel which comprises an electrical steel substrate, and a coating formed by the electrical steel insulating paint is arranged on the surface of the electrical steel substrate. A coating formed by the electrical steel insulating paint not only has basic characteristics of a coating formed by C-5 paint, but also has a good inter-sheet bonding effect, the bonding force of the coating is larger than or equal to 7 N / mm, no matter electrical steel is bonded through dispensing or surface glue, the electrical steel has good bonding force, and welding and annealing treatment can be carried out.

The invention belongs to the technical field of pipe network repairing coatings, and particularly relates to an underground pipe network self-repairing coating material based on a microcapsule technology and a preparation method and a construction method thereof. The underground pipe network self-repairing coating material based on the microcapsule technology comprises the following components in percentage by weight: 35-50% of matrix resin, 8-15% of a curing agent, 10-22% of A type microcapsules, 4-10% of B type microcapsules, 8-18% of functional filler, 3-8% of anticorrosive pigment, 2-5% of an auxiliary agent and 5-15% of a solvent, wherein the matrix resin is epoxy resin, the curing agent is modified aliphatic amine, polyamide or phenolic aldehyde amine, the type A microcapsule comprises an epoxy repairing agent core material and a polyurethane-polyurea capsule wall, the type B microcapsule comprises an amine curing agent core material and a polyurethane-polyurea capsule wall, and the functional filler is nano SiO2, mica powder or glass flakes. The anticorrosive pigment is zinc phosphate, zinc molybdate or modified graphene, the auxiliary agent is a defoaming agent, a flatting agent, a coupling agent or a thixotropic agent, and the solvent is xylene, butanol or butyl acetate. The invention provides an underground pipe network self-repairing coating material based on a microcapsule technology as well as a preparation method and a construction method of the underground pipe network self-repairing coating material.

This utility model discloses a visible light catalytic wastewater treatment device, relating to the field of wastewater treatment technology. It includes: a reaction vessel containing a photocatalyst for degrading organic matter in wastewater; a stirrer within the reaction vessel for mixing the wastewater and the visible light photocatalyst; an organic wastewater pipe connected to the reaction vessel; an industrial lamp located above the reaction vessel to provide visible light and activate the photocatalyst; and a suspension separator connected to the reaction vessel for separating the degraded suspension and returning the resulting solid-liquid mixture to the reaction vessel for recycling. This wastewater treatment device utilizes the visible light catalytic properties of a zinc tungstate and zinc molybdate composite material, solving the problems of low degradation efficiency and reliance on ultraviolet light in traditional technologies, thus reducing secondary pollution. Furthermore, the device adopts a modular component design, facilitating rapid disassembly, expansion, and maintenance, adapting to different scales of wastewater treatment needs.

The invention provides high-solid chromium-free acrylic polyurethane finish paint, a preparation method and application, and relates to the technical field of finish paint. The finishing paint is mainly prepared from the following raw materials in parts by mass: 55 to 65 parts of hydroxy acrylic resin; 25 to 35 parts of an HDI (hexamethylene diisocyanate) tripolymer; 10-15 parts of a zinc phosphate and zinc molybdate composite antirust agent; 0.5 to 1.5 parts of a phosphorus-containing titanate coupling agent; 2 to 4 parts of modified SiO2; 1 to 3 parts of modified graphene / modified fluorinated graphene; 0.5 to 1.5 parts of a hyperbranched polyester flatting agent; 6 to 9 parts of propylene glycol methyl ether acetate; and 1-3 parts of a phosphorus-containing acrylate monomer. The coating system has the advantages of high solid content, no chromium, environmental protection and excellent heavy corrosion resistance, and is suitable for long-term protection in the fields of steel structures, marine facilities and the like in a harsh corrosion environment.

The invention relates to the technical field of plastic plates, and provides a high-strength flame-retardant anti-corrosion plate and a preparation method thereof.The high-strength flame-retardant anti-corrosion plate is prepared from, by weight, 65-80 parts of polypropylene, 20-30 parts of polycarbonate, 10-15 parts of maleic anhydride grafted polypropylene, 10-20 parts of flame retardant, 1-2 parts of antioxidant and 1-2 parts of plasticizer; the flame retardant is palygorskite fiber and modified hydrotalcite; the modified hydrotalcite is zinc molybdate coated hydrotalcite. According to the technical scheme, the problems of low strength and poor flame retardance of the polypropylene anti-corrosion plate in the prior art are solved.