35results about How to "Moderate viscosity" patented technology

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 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.

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 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 application belongs to the technical field of hydrogen energy conversion by electrolysis of water, and particularly relates to a doped nickel oxide modified polysulfone composite diaphragm material and a preparation method thereof, which comprises uniformly dispersing polysulfone in N-methyl pyrrolidone to obtain a polysulfone solution, adding PVP or PEG to the polysulfone solution, stirring until complete dissolution to obtain a mixed solution, adding a doped nickel oxide material to the mixed solution, stirring until complete uniform dispersion to obtain a casting solution, degassing the casting solution by stirring, laying the casting solution on the front end of a doctor blade, sliding the doctor blade at a uniform speed to uniformly spread the casting solution on the surface of a glass film to obtain a liquid membrane, pre-evaporating the liquid membrane in air, immersing the pre-evaporated liquid membrane in deionized water to solidify into a film, peeling off the film and cleaning to obtain the doped nickel oxide modified polysulfone composite diaphragm material. By introducing the doped nickel oxide as a functional modification material, the hydrophilicity and conductivity of the diaphragm are effectively improved.

This invention discloses a formaldehyde-free adhesive for plywood with a long drying time, its preparation method, and its application. The preparation method includes the following steps: 1) Preparing modified isocyanate: Castor oil and polyisobutylene are stirred and mixed at 60-90°C to obtain a mixture, preferably with a stirring time of 0.5-2 hours; a polyfunctional isocyanate is added to the mixture, and after reacting for 2-4 hours, the mixture is cooled to obtain modified isocyanate; 2) A mixture of water, flour, and a composite water-retaining agent is mixed with the modified isocyanate to obtain the adhesive. The above method is used to provide a formaldehyde-free adhesive for plywood with a long drying time.

This invention relates to the field of food technology, and more particularly to a high-casein-content yogurt and its preparation method. The yogurt preparation method provided by this invention includes: mixing raw milk, membrane-separated casein concentrate, and inorganic salts; subjecting the mixed raw material liquid to hydraulic cavitation treatment, then inoculating with a starter culture for fermentation; and, while fermenting to a certain pH level, applying ultrasonic treatment simultaneously with fermentation. The high-casein-content yogurt prepared by the method provided by this invention has suitable viscosity, hardness, and cohesiveness, a smooth and stable texture, good water retention, and a low whey separation rate, exhibiting superior stability and excellent sensory evaluation in terms of taste and aroma. The yogurt provided by this invention is characterized by high protein and high casein content. Due to the high casein content, it is naturally low in fat and high in calcium, with a strong feeling of satiety, better meeting the needs of fitness enthusiasts, those seeking weight loss, and those supplementing calcium.

The application discloses monodisperse smooth spherical silver powder, a preparation method and application thereof, wherein the silver powder has a particle size distribution parameter D100 of less than or equal to 4.0 microns, a sphericity ratio range of 0.85 to 1.15, and a specific surface area range of 0.60 to 0.75 m 2 / g. In view of the trend of narrow line width of the metalized printing of the crystalline silicon solar cell, the silver powder as the conductive phase of the silver paste needs to have a smaller D100 value and higher monodispersity. The application realizes high sphericity of the silver particles by constructing high supersaturation, inhibits agglomeration by combining two types of surface adsorbents with adsorption effect, and then adjusts the D100 value and optimizes the smoothness of the surface by Ostwald ripening process, so as to obtain the silver powder with excellent monodispersity, small D100 value, high sphericity and smooth surface, which effectively meets the high-precision requirement of the narrow line width printing of the photovoltaic cell, and is suitable for the field of high-performance conductive paste preparation.

The invention relates to a low-allergy hand lay-up epoxy resin composition as well as a preparation method and application thereof. The low-allergy hand lay-up epoxy resin composition comprises a resin component and a curing agent component, and the low-allergy hand lay-up epoxy resin composition does not contain a diluent; the resin component comprises bisphenol A type epoxy resin and bisphenol F type epoxy resin; the curing agent component is prepared from the following raw materials: isophorone diamine, polyether amine and epoxy resin. The low-allergy hand lay-up epoxy resin composition provided by the invention has the advantages of low allergy and high temperature resistance while ensuring good mechanical properties, can effectively solve the allergy phenomenon of the existing epoxy resin composition in a hand lay-up molding process technology, and is high in practicability.

The application discloses a warm-mixing in-place hot recycling asphalt mixture modifier and a preparation method thereof. The modifier comprises: 90# base asphalt, coumarone-indene resin, waste rubber powder, linear 30 / 70 type SBS, 4,4'-dithiodimorpholine, butyl propionate, poly-alpha-olefin, N-(2-hydroxyethyl)dodecylamide, cocamide propyl betaine and composite release agent. The modifier can reduce the use amount of new asphalt and recycling agent to a certain extent, significantly improve the performance of the recycled pavement and solve the problems of poor low-temperature performance and poor water damage resistance of the recycled pavement. In addition, some additives contained in the modifier have certain surface-active warm-mixing agent characteristics, thereby reducing the mixing temperature and improving the compaction degree of the in-place hot recycling mixture.

The invention discloses a preparation method and application of a nano-emulsion bacteriostatic agent with mango peel as a material, and belongs to the technical field of botanical pesticide preparations, the method comprises the following steps: drying and crushing the mango peel, and extracting with a first polar solvent to obtain a first crude extract; dissolving with a second polar solvent, adjusting the pH value to an isoelectric point, and carrying out ultrasonic-assisted extraction and standing layering to obtain an upper organic phase; removing a solvent to obtain a refined extract, and mixing the refined extract with an emulsifier and water to form a pre-emulsion; and carrying out high-speed shearing and high-pressure homogenization treatment to obtain the nano-emulsion bacteriostatic agent. The invention further provides application of the prepared nano emulsion bacteriostatic agent, the technical problems that an existing plant source bacteriostatic agent is low in active ingredient extraction efficiency, easy to degrade, poor in stability, not prone to uniform dispersion and the like are solved, efficient enrichment and stable encapsulation of the active ingredients are achieved through the integrated extraction, refining and nano emulsification technology, and the bacteriostatic agent has the advantages of being environmentally friendly, free of toxic and side effects and the like. Therefore, the antibacterial effect and the storage stability of the final product are remarkably improved.

The invention relates to the technical field of food processing, in particular to a coconut juice and rice milk beverage and a processing method thereof.The method comprises the steps that rice is taken, baking soda is added, and soaking is conducted overnight; pouring the soaked rice and water into a colloid mill, and grinding to obtain raw rice milk; adding the raw rice milk, the coconut milk and the white granulated sugar into a stirring tank at the same time, stirring and mixing, and blending; stirring and gradually heating in the blending process, and finally keeping stirring at 85-95 DEG C, so that starch is dissolved out and compounded with lipid, and the rice milk gradually becomes rice paste; when rice milk is gelatinized at 85-95 DEG C, the stage is the optimal window stage of starch dissolution and lipid compounding, starch particles absorb water to swell and break, amylose is dissolved out, coconut milk fat molecules added in advance before the rice milk is gelatinized can be combined with hydrophobic cavities of the amylose at the moment, and the amylose is dissolved out. The formed single-helix compound blocks mutual approaching and hydrogen bond bonding among amylose molecules, reduces the aging of starch, and also can avoid rancidity generated by oxidation of coconut oil.

This invention belongs to the field of proton exchange membrane (PEM) water electrolysis for hydrogen production, and discloses a PEM anode slurry, a catalyst-coated membrane, and their preparation method. The anode catalyst is premixed with ultrapure water under ultrasonic and stirring conditions, then an alcohol solvent and an ionomer are added and stirred before high-speed shear dispersion. Following this, the anode slurry is prepared through nano-grinding and degassing processes. The catalyst coating effect is improved by adjusting the ratio of ionomer to catalyst, the solid content of the slurry, the slurry formulation, and the dispersion process. This invention yields a highly efficient dispersion slurry with high stability, low sedimentation, and a dense and uniform coating, thus improving coating efficiency and water electrolysis performance.

The present application relates to the technical field of water-based acrylic modified alkyd resin, especially to the field of IPC C08F283, further, to a triphenyl phosphite modified water-based alkyd resin and a preparation method thereof, wherein the raw materials include, by mass fraction, 20-30 parts of fatty acid, 10-20 parts of polyhydric alcohol, 12-20 parts of dibasic acid, 2-6 parts of benzoic acid, 0.02-0.08 parts of catalyst, 0.05-0.15 parts of triphenyl phosphite, 1.5-4.0 parts of dimethylbenzene, 18-25 parts of cosolvent, 2-5 parts of acrylic monomer, 0-15 parts of acrylic ester monomer, 0.3-1.0 parts of initiator and 3-6 parts of neutralizing agent.The present application uses triphenyl phosphite as an antioxidant, reduces the color number of the resin, improves the water resistance of the resin to a certain extent, improves the catalytic efficiency of the catalyst and shortens the synthesis time.

The invention discloses a thermosetting slurry with an ultralow thermal expansion coefficient, which belongs to the technical field of packaging materials and comprises the following raw materials in parts by weight: 15-30 parts of epoxy resin, 5-15 parts of a curing agent, 60-80 parts of a composite inorganic filler, 1-5 parts of a pore forming agent, 5-10 parts of a solvent and 1-5 parts of an auxiliary agent. The thermosetting slurry with the ultralow thermal expansion coefficient is cured by adopting staged heating, in the first stage, epoxy resin and a curing agent fully react to form a cross-linked network, and a solvent is volatilized; in the second stage, the pore forming agent is thermally decomposed, and a pore structure is formed in the cross-linked network. The invention also discloses a porous low-expansion material obtained by curing the slurry, and a preparation method and application of the slurry. By introducing a set pore-forming mechanism, on the premise of not sacrificing the processing performance of the slurry, the thermal expansion coefficient of a sintered body is remarkably reduced, and the problems that existing low-expansion-coefficient slurry is poor in processing performance under the high filling amount and the CTE reduction amplitude is limited are solved.

This invention relates to the field of pharmaceutical technology, specifically to an antibacterial and health-promoting compound gel and its preparation method. The preparation method of the antibacterial and health-promoting compound gel is characterized by the following steps: mixing pepper volatile oil and tea oil as the oil core, and using whey protein isolate and pectin complex as the wall material to prepare oil-loaded microcapsules; dispersing gellan gum and xanthan gum in purified water containing β-glycyrrhizic acid, adding a concentrated aqueous extract obtained by microwave-assisted extraction of Polygonum cuspidatum, Portulaca oleracea, Cnidium monnieri, and Glycyrrhiza uralensis in a weight ratio of 4:2:2:1, and stirring evenly to obtain an aqueous matrix; adding the oil-loaded microcapsules to the aqueous matrix under continuous high-speed shearing, and simultaneously adding nano-sized calcined oyster shell powder to obtain a biphasic gel mixture; adding ε-polylysine and menthol-β-cyclodextrin inclusion complex to the biphasic gel mixture, and stirring to form a biphasic gel system. This application solves the problems of unstable essential oils, easy volatility, and uncontrollable release behavior in the prior art.

This invention discloses a highly stable fusidic acid cream and its preparation method, belonging to the field of pharmaceutical formulations. The fusidic acid cream provided by this invention comprises fusidic acid, propylene glycol, an oil phase component, an aqueous phase component, an antioxidant, and an amphiphilic lipid composition; wherein the oil phase component comprises white petrolatum, mineral oil, cetyl alcohol, glyceryl monooleate, phytanetriol, and phospholipid-PEG. The preparation method involves drying and pretreating the amphiphilic lipids, mixing the aqueous phase and the drug-loaded oil phase under nitrogen protection, and then sequentially subjecting them to high-speed shear emulsification and high-pressure homogenization. Finally, phospholipid-PEG is added to prepare the fusidic acid cream. This invention, through a unique amphiphilic lipid combination and stepwise process, significantly improves the dispersion uniformity and chemical stability of fusidic acid. The resulting cream has controllable particle size, is not prone to agglomeration, and exhibits good storage stability, making it suitable for industrial production.

The application provides a carbon-carbon composite material defect repairing liquid, a preparation method thereof and a defect repairing method of a carbon-carbon composite material component, and the carbon-carbon composite material defect repairing liquid comprises the following components in percentage by mass: 0.05%-0.2% of a silane coupling agent, 5%-14% of an organic solvent, 10%-25% of graphite powder, 60%-80% of phenolic resin and 0.5%-2% of polyvinylpyrrolidone, wherein the mesh number of the graphite powder is 200-1000, the solid content of the phenolic resin is 80wt%-85wt%, and the residual carbon content of the phenolic resin is 60wt%-75wt%. The carbon-carbon composite material defect repairing liquid has a good defect repairing effect on the carbon-carbon composite material component, and has the advantages of simple operation, short cycle and low cost.

The invention discloses an external traditional Chinese medicine health-care plaster and a preparation method thereof, and belongs to the technical field of external traditional Chinese medicine health care. Each standard amount of the plaster is composed of a fuel oil explosive, an insect drug, a fine drug and a matrix, the weight ratio of the components is scientific and reasonable, the fuel oil explosive is a plant medicinal material, the insect drug and the fine drug are crushed and then added, and the matrix is selected from sesame oil, yellow lead and beewax. The preparation method comprises the following steps: preparing materials, frying and extracting, refining oil into paste, adding beewax, removing fire toxin, mixing medicinal powder, spreading the paste into paste, packaging and storing, determining key parameters such as temperature, stirring speed and the like in each step, and adopting an optimized process of frying at low temperature and adding the medicinal powder at low temperature to retain effective components of the medicinal materials to the greatest extent. The plaster is scientific in whole formula compatibility and clear in primary and secondary effects, effectively relieves neck, shoulder, waist and leg pain, improves discomfort such as lumbar muscle degeneration and the like, relieves discomfort of various muscles, bones and joints in a targeted mode, and is reasonable in effective component proportion and excellent in health care effect.

This invention relates to the field of adhesive preparation technology, and particularly to an environmentally friendly composite organic adhesive suitable for reinforcing and bonding multifunctional backpack components. The adhesive comprises 35% epoxy resin, 10% polyurethane, 35% ethyl cyanoacrylate, 10% liquid crystal polymer powder, 5% banana oil, and 5% acrylic acid. Synergistic effect of multiple components: epoxy resin provides high strength and rigidity, polyurethane provides flexibility and toughness, ethyl cyanoacrylate provides fast fixation, and liquid crystal polymer powder provides wear and weather resistance. The six components complement each other, achieving a combination of fast curing, high strength, flexibility, and weather resistance. Perfect compatibility with multiple materials: It exhibits excellent adhesion to fabrics such as nylon, polyester, and canvas, as well as ABS, PC, PP, TPU, and polyethylene fibers, with strong interfacial bonding and no selective adhesion defects. Extremely adaptable to various working conditions: It is resistant to repeated bending, friction and wear, water immersion, UV aging, and high and low temperatures, meeting the requirements of complex outdoor environments and long-term dynamic use, and the bonded parts are not prone to failure.

The invention discloses a modified epoxy curing agent based on KH-560 distillation residues as well as a preparation method and application of the modified epoxy curing agent. The preparation method comprises the following steps: A, putting a polyamine compound into a stirring kettle, and stirring; b, putting an accelerant into a stirring kettle, stirring the accelerant and the polyamine compound to obtain a mixed solution, uniformly mixing, introducing nitrogen into the stirring kettle, and replacing air in the kettle; c, the KH-560 distillation residues are put into a storage tank, nitrogen is introduced into the storage tank, and air in the storage tank is replaced; d, heating the mixed solution in the stirring kettle to a reaction temperature, and metering and dropwise adding the KH-560 distillation residue into the stirring kettle according to a theoretical equivalent to react; e, after dropwise adding is completed, liquid in the stirring kettle is subjected to heat preservation and continuous stirring at the reaction temperature, and the modified epoxy curing agent is obtained after discharging. According to the scheme, the KH-560 distillation residue can be safely and efficiently converted into the modified epoxy curing agent, the epoxy value in the KH-560 distillation residue is recycled, and meanwhile, the environment-friendly treatment cost is reduced.

The invention provides a hydrophobic deep-eutectic solvent as well as a preparation method and application thereof, and belongs to the field of analytical chemistry. The hydrophobic deep-eutectic solvent is composed of a hydrogen bond acceptor and a hydrogen bond donor according to the molar ratio of 1: 1-2: 1, the hydrogen bond acceptor is selected from one of decanoic acid and lauric acid, the hydrogen bond donor is 2-hexyl-1-decanol, and the preparation method of the hydrophobic deep-eutectic solvent comprises the steps that the hydrogen bond acceptor and the hydrogen bond donor are mixed according to the molar ratio of 1: 1-2: 1 and stirred at the temperature of 90-100 DEG C, and the hydrophobic deep-eutectic solvent is obtained. The mixture is stirred until homogeneous liquid is formed, and the hydrophobic deep-eutectic solvent is obtained. According to the hydrophobic deep-eutectic solvent and the preparation method and application thereof, the problems that an existing absorbent for alkane VOCs treatment is low in absorption efficiency, poor in regeneration performance, poor in environmental protection property and insufficient in industrial adaptability can be solved.

The invention belongs to the technical field of functional dressings, and discloses a liquid dressing for skin repair as well as a preparation method and application thereof, the liquid dressing for skin repair is prepared from the following raw materials in percentage by weight: 1-5% of zinc hyaluronate, 2-10% of giant salamander collagen, 1-8% of aloe polysaccharide, 0.5-6% of L-lactic acid, 0.5-2% of carbomer, 0.1-0.5% of preservative, 0.1-2% of pH regulator and the balance of purified water. The components of the dressing are reasonably proportioned and synergistically gained, and the dressing has the effects of resisting bacteria, resisting oxidation, promoting angiogenesis and the like, can effectively promote skin wound repair, and also has good safety and use comfort.

The invention relates to the technical field of road engineering repair, in particular to a polymer grouting material for road reinforcement and a construction method of the polymer grouting material. The grouting material comprises a component A and a component B, wherein the component A comprises 3-8 parts of nano silicon dioxide and 70-90 parts of polyisocyanate; the component B comprises 50-70 parts of polyether polyol, 0.1-1.0 part of a rare earth catalyst and 10-20 parts of a hydrophobic chain extender, the molecular weight of the polyether polyol is less than or equal to 5000, and the viscosity of the polyether polyol is 300-500 mPa.s; the viscosity of the component A and the component B at 25 DEG C is 1t; and the pressure is 200 mPa.s. By improving the formula of the grouting material system, introducing the nano silicon dioxide, simultaneously adopting the rare earth catalyst and the hydrophobic chain extender and combining the control on the viscosity and the molecular weight of the material and the relationship between the expansion rate and the strength, the obtained polymer grouting material can be quickly expanded and has good expansion rate and strength.

This invention belongs to the field of ceramic joining technology, and discloses a method for rapid ceramic welding assisted by a multi-energy field, the resulting ceramic welded joints, and their applications. This method combines induction heating energy fields and laser energy fields to join ceramic materials, reducing thermal damage caused by overall heating and thermal shock damage to the base material due to rapid heating and cooling, thus improving the quality of the joints obtained through rapid joining. The ceramic welded joints prepared by this method exhibit high strength at room temperature and maintain high mechanical strength even at 800°C.