89results about How to "Moderate viscosity" patented technology

The invention discloses an ice hockey helmet 3D printing lining and a printing method thereof, and relates to the technical field of helmets, the ice hockey helmet 3D printing lining comprises a first helmet lining, a second helmet lining, a third helmet lining and a fourth helmet lining, under the cooperation of a double-layer lattice structure, a single-layer lattice structure, an elastic layer, a breathable layer, an external force dynamic adjusting layer, a buffer memory layer, a temperature adjusting layer and an attaching positioning layer, all functional layers are tightly combined into a whole through the layer-by-layer construction advantage of the 3D printing technology, the structural integrity and function collaboration of the lining are improved, and the service life of the lining is prolonged. The helmet lining is comprehensively improved in the aspects of protection, comfort, air permeability, sweat absorption adjustment and the like, in the printing process, gradual change type parameter adjustment is adopted in a transition area of a single-layer lattice structure and a double-layer lattice structure, smooth connection is improved, and the printing quality of the helmet lining is improved. And stress concentration points are avoided, so that the shape can be effectively changed and the impact force can be dispersed when the whole body is impacted.

The invention belongs to the technical field of heat-conducting gasket processing, and particularly relates to a method for improving pseudo hardness of a heat-conducting gasket, the heat-conducting gasket is prepared from the following raw materials in parts by mass: 100 parts of vinyl silicone oil, 1-2 parts of color paste, 0.5-0.7 part of catalyst, 5-10 parts of hydrogen-containing silicone oil and 500-700 parts of mixed heat-conducting filler; the mixed heat-conducting filler comprises the following components in parts by mass: 100 parts of aluminum oxide, 40 parts of boron nitride and 5 parts of a coupling agent. The coupling agent, the aluminum oxide and the boron nitride are mixed to prepare the heat-conducting filler, and the fluorosilicone oil is introduced into the surface of the heat-conducting filler, so that the filler has a good lubricating effect, and the false hardness phenomenon of the heat-conducting gasket can be eliminated.

The invention discloses a preparation method of an environment-friendly degradable rubber material, and relates to the technical field of rubber material preparation. The environment-friendly degradable rubber material disclosed by the invention is prepared by the following steps: plastifying natural rubber at high temperature, then adding reinforcing filler, palm oil paste, an anti-aging agent and an active agent for first-stage plastifying, and then adding part of rubber softening oil, zinc oxide, a foaming agent, a vulcanizing agent and a xanthate accelerant containing benzothiazole for second-stage rubber mixing; and adding the rest rubber softening oil to carry out third-stage rubber mixing to obtain a rubber material, and finally carrying out thin passing, packaging, standing and two-time vulcanization on the slurry to obtain the rubber material. The environment-friendly degradable rubber material provided by the invention is simple in preparation method, stable in processability, excellent in mechanical strength and rebound resilience, excellent in wear resistance, insulativity, acid and alkali resistance, aging resistance, high and low temperature resistance and waterproofness, and can be applied to the fields of diving suits, tires, wires and cables and the like.

The invention discloses rosin type soldering flux for indium-based low-temperature soldering paste and a preparation method of the rosin type soldering flux, and belongs to the technical field of brazing soldering flux. The soldering flux is prepared from the following components in percentage by weight: 40 to 60 percent of modified rosin, 2 to 5 percent of an organic acid activating agent, 0.5 to 2 percent of a halogen-containing compound, 2 to 5 percent of hydrogenated castor oil, 0.1 to 1 percent of benzotriazole, 0.1 to 1 percent of triethanolamine, 0.5 to 2 percent of a surfactant and 0.5 to 2 percent of paraffin oil. And the balance of an organic solvent. The method has the advantages that the prepared soldering flux is good in wettability and excellent in weldability, welding spots are bright and full, the welding void rate is as low as 2.4%, the heat conductivity can reach 43.12 W / mK, the welding spot shear strength can reach 13.45 MPa, and the soldering flux is suitable for low-temperature welding of indium-based brazing filler metal.

The invention provides a high-strength toughened epoxy vinyl ester resin composition, which is prepared by introducing a functional olefin monomer containing tert-butyl hindered amine into epoxy vinyl ester to obtain modified epoxy vinyl ester resin, and reacting the modified epoxy vinyl ester resin with isocyanate. A dynamic hindered urea covalent bond generated by the reaction enables a hindered urea group to have reversible dynamic property at room temperature, so that the rigidity of a casting body is superior to that of common vinyl resin; and when the material is subjected to external force, the dynamic hindered urea bond can be broken preferentially because the bond energy is lower than that of a covalent bond, so that energy is absorbed, stress is dissipated, and the toughness of the vinyl resin is improved. The high-strength toughened epoxy vinyl ester resin composition disclosed by the invention can be rapidly cured at room temperature, is excellent in comprehensive performance, and has improved rigidity and toughness at the same time.

According to the low-temperature sodium ion electrolyte based on the carboxylic ester-based solvent and the sodium ion battery, the carboxylic ester-based mixed solvent is used, the excellent low melting point, relatively high oxidation stability, proper dielectric constant and low viscosity of the carboxylic ester-based mixed solvent are utilized, high ionic conductivity is achieved at the low temperature, and meanwhile the low-temperature sodium ion electrolyte and the sodium ion battery based on the carboxylic ester-based solvent are obtained. According to the invention, electrolyte components are further improved, sodium 4, 5-dicyano-2-(trifluoromethyl) imidazolate is introduced, and other organic solvents and additives are mutually matched and synergistic, so that the interface of the electrolyte has excellent stability, the electrolyte also has good electrochemical performance in a low-temperature environment, and the electrolyte can be applied to an environment of-85-25 DEG C, and can be applied to the field of lithium ion batteries. Good application prospects are realized.

The invention discloses optical glass, a prefabricated member thereof, an optical element and an optical instrument, and relates to the technical field of optical glass. The optical glass comprises the following components in percentage by weight: 2 to 15.2 percent of SiO2; 8 to 22 percent of B2O3; la2O3: 40% to 60%; 3 to 18 percent of Y2O3; zrO2: 1%-15%; 2 to 15 percent of Nb2O5; 0 to 9 percent of Gd2O3; znO: 0 to 10%; 0 to 10 percent of Ta2O5; 0 to 6 percent of TiO2; 0 to 10% of RO; 0 to 8% of Rn2O; 0 to 8 percent of WO3; 0 to 5 percent of Al2O3; 0 to 8 percent of Yb2O3; 0 to 5 percent of GeO2; 0-1% of a clarifying agent; (Gd2O3 + ZnO) / Y2O3 is 2.0 or less; the thermal expansion coefficient alpha-30 / 70 DEG C of the optical glass is below 85 * 10 <-7 > / K, and the abrasion degree FA is 75-120. The high-refractive-index optical glass obtained by the invention has relatively low thermal expansion coefficient and excellent abrasion degree.

A preparation method of the high-performance lignin-based non-isocyanate polyurethane adhesive comprises the following steps: firstly, mixing lignin, a non-cyclic diester compound and water, adjusting the pH value, heating and stirring to carry out ester exchange reaction, then adding polyamine to carry out polycondensation reaction, finally adding a cross-linking agent to modify, and discharging to obtain the adhesive. The operation process is simple, the bio-based content of the product is high, the adhesive bonding strength and the II-class wet strength of plywood prepared from the adhesive with the high bio-based content can reach 1.96 MPa and 1.68 MPa to the maximum respectively, and the requirement for I-class boiling-water-boiling-resistant bonding strength of domestic outdoor artificial boards is met. The adhesive shows excellent adhesive performance to various base materials, has very strong tolerance to various organic solvents and low-temperature environments, is low in cost, can replace a traditional formaldehyde adhesive and a traditional polyurethane adhesive, and is of great significance to conversion from the adhesive industry to an environment-friendly type and a low-carbon type.

The invention belongs to the technical field of electrolytes, and particularly relates to an electrolyte suitable for low temperature, a preparation method and a lithium battery, the electrolyte comprises a solvent, a lithium source, a film-forming additive and surface modified magnetic particles; according to the invention, the magnetic particles are added in the electrolyte, then the permanent magnet on the turntable rotates to form a variable magnetic field, due to the change of the magnetic field, the magnetic domains in the magnetic particles in the electrolyte in the battery pack can change along with the magnetic field, and due to the continuous change of the external magnetic field, the magnetic domains in the magnetic particles in the electrolyte in the battery pack can change along with the magnetic field. The magnetic particles are uniformly distributed in the battery pack, so that the electrolyte can be continuously and uniformly heated, and even if the temperature of the external environment is relatively low, the magnetic domains in the magnetic particles continuously move, the magnetic hysteresis loss phenomenon occurs in the movement process, and the temperature of the magnetic particles is further increased; and therefore, the low-temperature applicability of the electrolyte is improved.

The invention provides an anti-ultraviolet aging high-strength and high-modulus PBO (poly (p-phenylene benzobisoxazole)) fiber and a preparation method thereof. The strength of the PBO fiber is 31.6-32.3 cN / dtex. The strength retention rate is greater than or equal to 62.5%, and preferably, the strength retention rate is 62.5-90.5%. The intermittent pre-polymerization process is used for intermittently preparing a pre-polymerized material, starting from a material storage kettle, continuously conveying the material, defoaming, pre-filtering, feeding the material into a final polymerization system, adding an ultraviolet light absorber before the material enters the final polymerization system for blending modification, and then spinning, washing, oiling, drying and densifying to obtain the anti-ultraviolet aging fiber. The PBO spinning solution is high in viscosity and is easy to block equipment and pipelines, so that equipment such as a pre-polymerization kettle, a middle kettle, a defoaming kettle and a double-screw extruder should be compactly arranged in space arrangement. Meanwhile, the reaction time and the reaction temperature need to be strictly controlled, the intrinsic viscosity of materials in each process is guaranteed, the process stability is guaranteed, and the anti-ultraviolet aging fiber can be obtained.

The invention relates to the technical field of gouty arthritis, and discloses a traditional Chinese medicine plaster for treating gouty arthritis and a preparation method thereof. The ointment comprises the following materials: 1 part of paniculate swallowwort root, 1 part of asarum, 1 part of borneol, 2 parts of costustoot, 2 parts of earthworm, 3 parts of ligusticum wallichii, 3 parts of radix clematidis, 3 parts of spina gleditsiae, 4 parts of raw rhubarb, 6 parts of mint, a proper amount of vaseline, a proper amount of sesame oil, a medical dressing plaster and a desensitization adhesive tape. According to the traditional Chinese medicine plaster for treating the gouty arthritis and the preparation method of the traditional Chinese medicine plaster, the traditional Chinese medicine plaster directly acts on an affected part, transdermal absorption is achieved, the local treatment effect can be rapidly achieved, pains and inflammations caused by the gouty arthritis are relieved, medicinal materials are smashed into ultra-micro powder of 300 meshes through an ultra-micro powder machine, and the traditional Chinese medicine plaster is prepared into the traditional Chinese medicine plaster for treating the gouty arthritis. Compared with an oral medicine, the external plaster can increase the surface area of the medicine and improve the permeability and absorption efficiency of the medicine, and compared with the oral medicine, the external plaster can reduce the stimulation of the medicine to gastrointestinal tracts and systemic side effects.

The application discloses a method for regenerating cellulose from waste cotton based on ion solvation pretreatment and application thereof, and belongs to the technical field of high-value utilization of biomass resources. The method is characterized in that waste cotton fabric is immersed in a metal halide aqueous solution for ion solvation pretreatment, and then subjected to mild decolorization by a reduced decoloring agent, and then high-polymerization-degree cotton cellulose after decolorization is dissolved in a cellulose solvent system to obtain a high-transparency and high-activity cellulose solution. The cellulose solution can be widely applied to the fields of regenerated cellulose fiber spinning, nanocellulose preparation, functional aerogel / hydrogel construction and high-performance gel electrolyte. The application overcomes the problem that the thoroughness of decolorization and the retention of polymerization degree of regenerated waste cotton textiles are difficult to be considered simultaneously, and realizes efficient decolorization, high-polymerization-degree retention and efficient dissolution of waste colored cotton textiles in various solvent systems.

The present specification relates to compounds of Chemical Formula 1, coating compositions comprising the compounds, organic light emitting devices using the coating compositions, and methods of manufacturing the same.

The invention discloses a PCCP pipe bell and spigot joint sealing system manufacturing method and a PCCP pipe bell and spigot joint sealing system manufactured through the PCCP pipe bell and spigot joint sealing system. During manufacturing, a joint is filled with an elastic blocking piece, the elastic blocking piece is divided into a first sub-joint and a second sub-joint, and the elastic blocking piece is arranged in the joint in an abutting mode through a locking mechanism; mortar is poured into the first sub-joint through a reserved first grouting opening, and the locking mechanism is removed after the mortar does not flow; a base layer is arranged on the upper end face of an upper opening of the second sub-joint, anticorrosive paint is applied to the base layer to form an anticorrosive coating, the anticorrosive coating and the base layer form a plugging structure and seal the second sub-joint, and sealant is poured into the second sub-joint through a reserved second grouting opening; the elastic barrier piece is basically non-sticky to mortar and the like; the method is suitable for construction in the low-temperature environment, the obtained sealing system can adapt to different stress interferences and different environmental factors, lasting sealing can be achieved, the construction technology can be simplified after the anti-corrosion coating is formed in a front-arranged mode, and the construction speed is high.

The invention relates to the technical field of packaging materials for electrical components, and discloses a single-component epoxy adhesive for thermosensitive components, which comprises the following components: 5-25 parts by mass of flexible resin; 1-5 parts by mass of high-temperature-resistant resin; 30-50 parts by mass of epoxy resin; 0-5 parts by mass of a pigment; 0-3 parts by mass of an additive; 30-50 parts by mass of a filler; 0-3 parts by mass of a rheological aid; and 5-15 parts by mass of a curing agent. The invention also discloses a preparation and use method of the single-component epoxy adhesive. The adhesive provided by the invention is moderate in viscosity, and a formed adhesive cured product is high-temperature-resistant and high in insulating strength.

The present invention belongs to the technical field of polyester polyol preparation, and specifically relates to a method for synthesizing polyester polyol for solvent-resistant rubber rollers. The polyester polyol is prepared from raw materials in parts by weight: 31-40 parts of diols, 53-63 parts of dibasic acids, 4-6 parts of organosilicon compounds, 2.0-2.5 parts of modification aids, 0.1-0.5 parts of modified nanographene, 0.01-0.05 parts of antioxidant aids, and 0.003-0.008 parts of catalysts. The present invention prepares the polyester polyol for solvent-resistant rubber rollers by reasonably selecting and proportioning the raw materials and dosages, and the components cooperate with each other to jointly improve the comprehensive performance of the prepared polyester polyol material, improve its solvent resistance and service life, and the prepared downstream products have good mechanical properties and solvent resistance; at the same time, the viscosity of the prepared polyester polyol is moderate, which is conducive to improving the degassing problem when producing polyurethane printing rubber rollers.

The invention provides an electrolyte and a secondary battery, the electrolyte comprises a solvent, an additive and an electrolyte, the solvent comprises fluoroethylene carbonate, a compound as shown in a formula I and a compound as shown in a formula II, the mass ratio of fluoroethylene carbonate to fluorochain ester is 1: (0.33-4), the mass ratio of the compound as shown in the formula I to the compound as shown in the formula II is 1: (0.33-3), and the additive and the electrolyte are used for preparing the electrolyte. Based on the mass of the electrolyte, the mass percentage A of the fluorinated solvent is more than or equal to 20% and less than or equal to 80%; the additive comprises tetraethylene silane, based on the mass of the electrolyte, the mass percentage of the tetraethylene silane is M, and M is larger than or equal to 0.02% and smaller than or equal to 3%. Through the arrangement, the fluoroethylene carbonate, the compound as shown in the formula I, the compound as shown in the formula II and the tetraethylene silane have a synergistic effect, so that the electrolyte has proper viscosity and relatively high oxidation resistance, and meanwhile, the negative influence of defluorination on a positive electrode can be improved; therefore, the high-temperature cycle performance and the high-temperature storage performance of the secondary battery under the high-pressure condition are improved.

The invention discloses tackifying emulsion as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The tackifying emulsion comprises the following components in percentage by weight: 45-70% of a tackifying polymer D, 0.5-5% of a dispersing agent and the balance of water, wherein the polymer B is prepared from divinyl benzene, phenol and an alpha-methyl styrene oligomer through a reaction, and the polymer C is prepared from triisobutylene and a divinyl ester compound through a reaction. The emulsion provided by the invention has excellent high and low temperature resistance stability, freeze-thaw stability and wide temperature range applicability, and solves the problems of easy phase separation and narrow use temperature range of the traditional petroleum resin tackifying emulsion.

This invention discloses a synchronous grouting material for high-water-pressure ultra-large shield tunnels and its preparation method, belonging to the technical field of cement-based materials. The synchronous grouting material for high-water-pressure ultra-large shield tunnels consists of two components, A and B. Component A is cement slurry, including cement, bentonite, highly active mineral admixtures, viscosity modifiers, stabilizers, and water; component B is a water glass solution. The volume ratio of component A to component B is 10–13:1. The synchronous grouting material of this invention has good water dispersibility, slow gel time, fast setting time, and high water erosion resistance. The gel time and setting time of the slurry are controllable and adjustable, avoiding slurry blockage and quickly and effectively filling the gap between the tunnel segments and the surrounding soil. Simultaneously, the slurry exhibits good cohesion in water-rich environments and is not prone to segregation and dispersion, meeting the performance requirements of synchronous grouting materials for high-water-pressure, ultra-large-diameter shield tunnels.

The invention relates to the technical field of steel and iron smelting, and provides a process for controlling inclusions in tire cord steel, which comprises the following steps: S1, smelting: adding synthetic slag into molten iron in the tapping process to obtain molten steel; s2, refining: refining the molten steel, adjusting element components, adding calcium carbide, silicon carbide and lime, and softly blowing to obtain refined molten steel; s3, continuous casting: casting the refined molten steel to obtain a casting blank, and rolling, spinning and cooling to obtain tire cord steel; the synthetic slag is prepared from, by weight, 50%-60% of SiO2, 20%-25% of CaO, smaller than or equal to 5% of Al2O3, smaller than or equal to 5% of MgO and the balance MnO, and the mass ratio of SiO2 to CaO is (5-6): 2. According to the technical scheme, the problem that the size of inclusions in tire cord steel is large in the prior art is solved.

The present invention relates to the technical field of electronic ceramic substrate materials, and more specifically, to a tape casting slurry, a green porcelain tape and a preparation method thereof. The tape casting slurry of the present invention is made of component A, component B and component C, wherein component A comprises: calcium borosilicate glass powder; component B comprises: solvent, binder, plasticizer and dispersant; component C comprises: one or more of acrylic adhesive, alkane mixture, pre-dispersant and auxiliary agent; the mass ratio of component A, component B and component C is 100:(50-150):(0.02-20). The tape casting slurry provided by the present invention has moderate viscosity and good fluidity, and can obtain a green porcelain tape with uniform film thickness and smooth surface.

This invention discloses a photocontrolled polymerization device and production method for polyacrylonitrile based on continuous flow. The invention employs a two-stage combined photocontrolled polymerization process: a batch reactor for prepolymerization and a tubular continuous flow reactor. The low-viscosity stage in the early polymerization phase takes place in a batch reactor with an internal light source, while the high-viscosity stage in the later polymerization phase occurs in a tubular continuous flow photoreactor. The light source can effectively penetrate the glass coil reactor, achieving efficient and controllable photocontrolled polymerization. This effectively overcomes the problems of difficult mass transfer due to increased material viscosity in the later stages of batch reactor polymerization, such as slower reaction efficiency and uneven illumination. Furthermore, the continuous flow photoreactor is divided into multiple independently controllable stages, allowing for precise adjustment of the light power density according to the reaction progress, achieving higher conversion rates in a shorter time.

This invention relates to an aqueous anionic blocked isocyanate curing agent, its preparation method, and its application. The preparation method includes the following steps: (1) reacting isocyanate with a crosslinking agent to obtain modified isocyanate; (2) adding a capping agent to the system after the reaction in step (1) to obtain an intermediate; (3) adding a hydrophilic modifier and a solvent to the system after the reaction in step (2) to react; (4) adding a neutralizing agent to the system after the reaction in step (3) and mixing to obtain an aqueous anionic blocked isocyanate curing agent. The preparation method of the aqueous anionic blocked isocyanate curing agent provided by this invention is simple and convenient to operate. Through a specific preparation method, the obtained aqueous anionic blocked isocyanate curing agent can have excellent thermal storage stability, unsealing temperature, pot life, anti-yellowing performance, adhesion, and mechanical properties.

The present invention addresses the problem of providing a photocurable ink jet ink composition which can be reduced in viscosity as an ink jet ink composition, has sufficiently high reactivity, and is capable of reducing the amount of substances that migrate to other surfaces that come into contact with the surface of the cured photocurable ink jet ink composition. As a solution, provided is a photocurable inkjet ink composition characterized by containing the following A-E: A. a polymer photopolymerization initiator containing an ethylenically unsaturated bond; b, a thioxanthone polymer photosensitizer with the molecular weight of 500 or more; c. a (meth) acrylate compound; d. An amine-modified oligomer having a weight average molecular weight of from 500 to 3,000 and a viscosity of less than 4,000 cps; the ratio of A / D is 1 / 9-9 / 1, the total amount of A and D in the ink composition is 5-40%, the content of a photopolymerization initiator having a molecular weight of less than 500 is less than 0.2%, the viscosity is 100 cps or less, and the surface tension is 32.0 mN / m or less.

The invention relates to the technical field of crushers, and discloses energy-saving efficient jaw crushing equipment for building solid waste disposal, which comprises a crusher main body, a movable jaw plate and a fixed jaw plate are respectively mounted in the crusher main body, and a stress dispersion assembly is arranged in the crusher main body. The stress dispersion assembly comprises a plurality of waved plates mounted on the outer surfaces of the movable jaw plate and the fixed jaw plate and a plurality of crushing teeth mounted on the outer surfaces of the waved plates, and building solid waste enters from the upper part of the crusher, so that the large fluctuation of the waved plates can enable the movable jaw plate to generate large impact force on the building solid waste which just enters the crusher at the initial stage; when the lower waved plate at the upper part of the fixed jaw plate is matched with the movable jaw plate according to the fluctuating degree and height, a special crushing space can be formed, and building solid wastes can be guided to a proper crushing position when being pushed and extruded by the driven jaw plate; and the situation that the building solid waste cannot enter the crushing process smoothly due to the fact that the upper structure of the movable jaw plate is too complex is avoided.

The invention belongs to the technical field of waterproof coatings, and discloses a single-component polyurethane waterproof coating manufacturing process, and the single-component polyurethane waterproof coating is prepared from the following raw materials by weight: 20-35 parts of polyisocyanate (MDI), 40-60 parts of polyether polyol, 3-8 parts of a chain extender, 0.1-0.5 part of a catalyst, 0.5-1.5 parts of an antifoaming agent, 5-15 parts of a solvent, and 10-20 parts of a filler. The manufacturing process comprises the following steps: automatically proportioning, accurately weighing polyether polyol, a chain extender and a catalyst according to a preset formula, conveying the weighed raw materials to a reaction kettle, stirring and dispersing, heating, dispersing and dehydrating, carrying out moisture detection, and dropwise adding MDI to carry out constant-temperature reaction after the moisture content meets the requirement, so as to obtain the polyether polyol. After cooling, an auxiliary agent and solvent oil are manually added for secondary constant-temperature reaction, secondary stirring and dispersing are performed, secondary cooling is performed, appearance inspection is performed, and finally automatic filling is performed; and dust collection and waste gas treatment are carried out in the processes of automatic batching and dispersion dehydration. The production efficiency is high, and the product quality is stable.

The invention provides a photolithography coated high-nickel ternary positive electrode material and a preparation method thereof, and belongs to the technical field of lithium ion battery positive electrode materials, and the preparation method comprises the following steps: carrying out wet spraying coating on LiNixCoyMn1-x-y-wZrwO2 matrix powder by using a conductive photoresist as a modifier to obtain a coated product, and under the protection condition of an oxygen atmosphere, carrying out wet spraying coating on LiNixCoyMn1-x-y-wZrwO2 matrix powder to obtain the high-nickel ternary positive electrode material. And sequentially carrying out exposure reaction, washing and developing treatment, drying, sieving and iron removal on the coated product by utilizing illumination or thermal radiation to obtain the conductive polymer coated high-nickel ternary positive electrode material. According to the invention, the advantages of good conductivity and stable structure of the conductive polymer are fully utilized, so that the problem of migration resistance of Li < + > on a material interface is reduced in the high-current charging and discharging process of the battery, and dissolution of metal particles on the surface of the material and surface side reaction are inhibited; the obtained high-nickel ternary positive electrode material crystal coated with the conductive polymer is high in first discharge efficiency, good in rate capability and cycle performance, and simple in process operation.

The application discloses a halogen-free water-based flame-retardant emulsion and a preparation method and application thereof. The emulsion comprises a halogen-free flame retardant, a non-ionic dispersant, an anionic dispersant, an anti-settling agent and water; the non-ionic dispersant is selected from a combination of one or more of alkylphenol polyoxyethylene ethers, dodecyl glycoside, Tween and fatty alcohol polyoxyethylene ether; the anionic dispersant is selected from a combination of one or more of sodium polyacrylate, dioctyl succinate sodium sulfonate and fatty alcohol polyoxyethylene ether sodium sulfate; and the anti-settling agent is selected from a combination of one or more of organic bentonite, modified hydrogenated castor oil derivative, polyamide wax, fumed silica and sodium carboxymethyl cellulose. The application adopts a combination of specific types of non-ionic dispersants and anionic dispersants and specific types of anti-settling agents, so that the flame-retardant emulsion has good dispersion stability, moderate viscosity and can adapt to various complex environments such as high-temperature and high-salt environments.

The invention belongs to the technical field of floor coatings, and provides a wear-resistant epoxy floor coating and a preparation method thereof, the wear-resistant epoxy floor coating is prepared from the following raw materials by mass: 50-80 parts of epoxy resin, 10-25 parts of phenolic resin, 5-8 parts of an active diluent, 1-5 parts of a dispersant, 3-8 parts of a curing agent, 3-8 parts of a modifier, 30-40 parts of a filler, 1-10 parts of an organic solvent, 2-5 parts of nano Al2O3, and 1-5 parts of a wetting agent. According to the epoxy floor coating, mixed resin of bisphenol A epoxy resin and bisphenol F epoxy resin is adopted, the wear resistance of the coating can be remarkably improved, the hardness and durability of the coating can be improved by optimizing the ratio of the resin to the curing agent, it can be ensured that the coating is moderate in viscosity and easy to construct due to addition of the auxiliaries, the curing time is shortened, and the service life of the coating is prolonged. The construction efficiency is improved.