53 results about "Microwave curing" patented technology

The invention relates to the field of ink, in particular to bio-based elastomer heat transfer printing ink and a low-temperature microwave curing method thereof. The bio-based elastomer heat transfer printing ink at least comprises the following raw materials in parts by mass: 50-75 parts of a bio-based prepolymer, 5-10 parts of a cross-linking agent, 15-30 parts of an anti-pinhole agent, 0.5-1.5 parts of a curing catalyst, 5-15 parts of a pigment and 15-30 parts of a solvent. The bio-based elastomer thermal transfer printing ink finally prepared by the invention not only has an excellent transfer printing effect, but also can greatly improve the bio-based carbon content in the printing ink, and avoids the problems of environmental pollution and discontinuity; and on the other hand, compared with the traditional petroleum-based TPU ink, the required energy consumption is lower, the flexibility and the washability are also obviously improved, the pinhole defect is reduced, and the probability of secondary printing blooming caused by solvent migration is greatly reduced.

The invention relates to the technical field of sand mold casting, and particularly discloses a gradient exhaust sand mold for an aluminum alloy thin-walled workpiece and a preparation method thereof.The sand mold comprises a cavity surface layer (with the hardness ranging from 90 HB to 95 HB), a transition layer (with the hardness ranging from 80 HB to 70 HB and a back sand layer (with the hardness ranging from 60 HB to 65 HB) which are arranged from inside to outside, and microporous ceramic exhaust rods (with the diameter ranging from 0.3 mm to 0.8 mm and the distance ranging from 1 mm to 3 mm) are embedded in the cavity surface layer; the exhaust rod is composed of a mullite fiber matrix and a nanometer gamma-AlO coating, the porosity is 40-50%, and the exhaust rod penetrates through the back sand layer to form a directional exhaust network. The preparation method comprises the following steps: mixing sand layer by layer (the cavity layer contains 1.0-1.5% of phenolic resin, and the back sand layer contains 0.4-0.6% of resin and 4-6% of starch); when sand is filled to the position 1-3 mm away from the surface of the cavity, an exhaust rod is implanted (the positioning precision is + / -0.1 mm); gradient compaction is carried out (the high pressure of a cavity is 3.0-4.0 MPa, the vibration of a transition area is 20-30 Hz, and the back sand airflow is 0.1-0.2 MPa); and carrying out microwave curing (2.5 to 3.5 kW, 60 to 120 s). The defects of hot cracks and air holes of the thin-wall part (smaller than or equal to 5 mm) are overcome synchronously, and the casting yield is increased to 95% or above.

The invention relates to a microwave curing concrete based on carbon mineralization wave-absorbing functional aggregate and a preparation method thereof, the microwave curing concrete comprises the following raw materials by weight: 350-400 parts of cement, 40-50 parts of fly ash, 40-50 parts of silica fume, 530-903 parts of carbon mineralization wave-absorbing functional aggregate, 0-414 parts of gravel, 691-712 parts of river sand, 1.5-3.0 parts of a water reducer, 12-20 parts of a nano magnetic fluid functional component, and 134-183 parts of water. Through composite application of the carbon mineralization wave-absorbing functional aggregate and the nano-magnetofluid functional component, the carbon mineralization wave-absorbing functional aggregate mainly provides skeleton type macroscopic wave absorption, the nano-magnetofluid functional component provides diffuse type nano-scale wave absorption, and the carbon mineralization wave-absorbing functional aggregate and the nano-magnetofluid functional component jointly construct an efficient and uniform microwave absorption network on different scales. The microwave energy utilization rate is obviously improved, the microwave curing performance of the concrete can be effectively improved, and the early mechanical property, the long-term strength and the durability of the concrete are improved.

The invention belongs to the technical field of textile fabrics, and particularly relates to an anti-pilling wool tencel fabric and a preparation method thereof. The anti-pilling wool tencel fabric comprises a core layer fiber raw material, a sheath layer fiber raw material, a composite bio-enzyme finishing liquid and a composite cross-linking finishing liquid, wherein the fiber raw materials of the core layer comprise 40-60 parts of wool fibers, 30-50 parts of tencel fibers and 5-15 parts of polyester fibers with special-shaped sections; the fiber raw materials of the sheath layer comprise 20-40 parts of wool fibers and 50-80 parts of tencel fibers; according to the invention, wool fibers which are easy to pilling are isolated through the core-sheath structure, and migration and slip-out of the fibers are reduced through the supporting effect of the internal skeleton; in the finishing process, a composite bio-enzyme and composite cross-linking synergistic effect is adopted, the washing step after enzyme treatment is omitted, the ideal surface state of the fibers is reserved to strengthen the cross-linking effect, uniform and compact combination is ensured in cooperation with a microwave curing technology, and long-acting anti-pilling protection is formed.

The invention discloses a high-porosity low-thermal-conductivity cement aerogel plate and a preparation method thereof, and belongs to the technical field of preparation of aerogel materials. The method comprises the following steps: preparing nano water-saturated resin from sodium polyacrylate alkali-resistant water-absorbent resin, mixing the nano water-saturated resin with cement, silica fume and other raw materials, and performing strickling or spray layering molding and microwave heating curing to obtain a finished product. Through the synergistic effect of the nanometer sacrificial template and microwave curing, the porosity of the product is larger than or equal to 96%, the heat conductivity coefficient is smaller than or equal to 0.026 W / (m.K), the compressive strength is larger than or equal to 0.8 MPa, the problems that in the prior art, the porosity is insufficient, the heat conductivity coefficient is high, the period is long, and performance is difficult to consider are solved, the process is simple and controllable, and the method is suitable for large-scale application of building heat preservation.

The application belongs to the technical field of textile fabrics, and particularly relates to an anti-pilling wool tencel fabric and a preparation method thereof; wherein the anti-pilling wool tencel fabric comprises core layer fiber raw material, sheath layer fiber raw material, composite biological enzyme finishing liquid and composite crosslinking finishing liquid; wherein the core layer fiber raw material comprises 40-60 parts of wool fiber, 30-50 parts of tencel fiber and 5-15 parts of profiled cross-section polyester fiber; the sheath layer fiber raw material comprises 20-40 parts of wool fiber and 50-80 parts of tencel fiber; the application isolates the wool fiber prone to pilling through a core-sheath structure, and reduces the migration and sliding of the fiber through the supporting action of the internal skeleton; in the finishing process, the composite biological enzyme and the composite crosslinking are used in a synergistic action, the washing step after enzyme treatment is omitted, the ideal surface state of the fiber is retained to strengthen the crosslinking effect, the microwave curing technology is matched to ensure uniform and dense combination, and long-acting anti-pilling protection is formed.

The invention belongs to the technical field of food preparation, and particularly relates to a method for preparing salted egg yolk powder by using a differential frequency microwave curing method, and the preparation method comprises the following steps: S1, pretreating egg yolk to obtain an egg yolk liquid; s2, preparing the salted egg yolk liquid; s3, preparing egg yolk pickling liquid; s4, performing high-speed centrifugal treatment and high-frequency microwave curing on the egg yolk pickling liquid by using a centrifugal machine to obtain oiled egg yolk particles; s5, performing rotary granulation on the oiled egg yolk particles; and S6, performing low-frequency microwave drying and superfine grinding. The salted egg yolk powder which is good in flavor, sufficient in nutrition and stable and excellent in quality can be obtained and can be widely applied to the fields of leisure food seasoning, catering seasoning and the like.

The invention discloses a microwave curing-based coating material and a preparation method thereof. The microwave curing-based coating material comprises mixed resin, a microwave absorbing material, cellulose ether, a curing agent, a hyperbranched polymer, an active monomer, polyglycol modified epoxy acrylate, o-cresol glycidyl ether, p-hydroxyanisole, a plasticizer and an accelerant. During preparation, the mixed resin, the hyperbranched polymer, the active monomer, the polyglycol modified epoxy acrylate and the o-cresol glycidyl ether are mixed and stirred, the p-hydroxyanisole, the plasticizer and the accelerant are sequentially added and stirred, the microwave absorbing material and the cellulose ether are added and stirred, and the curing agent is added and stirred. The coating material disclosed by the invention can be quickly cured within dozens of seconds to dozens of seconds based on a microwave condition, has good corrosion resistance and adhesive property, and fundamentally and effectively solves the problem of high shrinkage rate generally existing in the adoption of the existing light-cured resin.

The invention relates to the technical field of composite materials, in particular to a preparation method of a microwave curing aramid paper high-performance insulating composite material. The high-performance insulating composite material prepared by the method comprises a modified insulating film framework layer, wherein an adhesive layer and a modified aramid paper layer are sequentially arranged on the two sides of the modified insulating film framework layer outwards; wherein the modified aramid paper is subjected to low-temperature plasma treatment and grafting modification with a silane coupling agent, and the modified insulating film framework layer is coated with slurry containing KH-550 modified nano silicon dioxide. The high-performance insulating composite material prepared by the invention not only has the high temperature resistance and puncture resistance of aramid paper, but also has the characteristics of high strength, large stiffness and good insulation of an insulating film, can be widely applied to motor stator insulation of a new energy automobile, and is an indispensable key material for the new energy automobile.

The application discloses a kind of carbon fiber resin matrix composite microwave curing simulation simulation method, it is related to microwave curing technical field.Utilize maxwell equation group, heat transfer, curing reaction kinetics and multi-field coupling theory create curing reaction to establish theoretical model, further import parameter into numerical simulation software COMSOL or Ansys software and carry out finite element analysis, obtain the electromagnetic field distribution, temperature field distribution and curing degree field distribution nephogram in each stage of curing reaction process, can provide effective theoretical support for the microwave curing mechanism research of carbon fiber resin matrix composite, and provide a large number of basic data and optimization scheme for its actual microwave curing process optimization.

The application discloses a preparation method of a carboxylic acid collector, the carboxylic acid collector prepared by the method and application thereof, and belongs to the technical field of flotation in mineral processing engineering. The preparation method is as follows: uniformly mixing fatty acid raw materials and non-fatty acid raw materials to form mixed raw materials, adding sodium percarbonate after microwave pre-irradiation of the mixed raw materials, stirring and reacting under microwave irradiation, and performing microwave curing irradiation treatment after the reaction is completed to obtain the carboxylic acid collector. The fatty acid raw materials include a mixture of any one or more of plant-based fatty acids or animal-based fatty acids, and the non-fatty acid raw materials include a short carbon chain alcohol and an anionic cellulose ether. The preparation method is simple, convenient to operate, low in requirement for related equipment, and favorable for reducing production cost. The prepared carboxylic acid collector is good in selectivity, strong in collecting capacity, good in solubility and dispersibility in water, and capable of adapting to efficient flotation under normal temperature or low temperature conditions of minerals, and is suitable for application in flotation of oxidized ores.

The invention discloses an elemental sulfur slow-release carrier for biochemical denitrification and a preparation method of the elemental sulfur slow-release carrier. The carrier takes agricultural waste as a base material, a porous carbon-based material is formed through carbonization treatment, and stable slow release of elemental sulfur is realized through gradient structure design. The outer layer is a mixture of elemental sulfur and a carbon-based substrate, the middle layer is an equivalent mixture, and the inner layer is a mixture of elemental sulfur and a slow-release carbon source, so that the denitrification requirement of low-C / N-ratio sewage is met. Meanwhile, a pH response mechanism is introduced into the carrier, and the stability of a reaction system is maintained through self-adaptive regulation and control of a microencapsulated alkali source when the pH is changed. The preparation process adopts low-temperature pressing and microwave curing, and is energy-saving and environment-friendly. The technology has the advantages of low cost, high efficiency and environmental protection, and is suitable for the field of environmental protection.

The invention discloses a coating process method for high-refractive-index and wear-resistant glass beads, which specifically comprises the following steps: S1, cleaning and removing impurities from the glass beads, and performing surface activity catalytic treatment on the glass beads; s2, the glass beads are soaked in a coating solution for dynamic coating; and S3, spraying a perfluorooctyltriethoxysilane and hydroxy acrylic resin composite coating on the glass beads, naturally drying, soaking in an ethanol solution of 1wt% gamma-aminopropyltriethoxysilane for 10-15 minutes, carrying out post-treatment, and carrying out microwave curing treatment to obtain the high-refraction wear-resistant glass beads. The invention relates to the technical field of glass beads. According to the coating process method for the high-refractive-index and wear-resistant glass beads, waste glass is used as a raw material, the production cost is reduced, the glass beads are activated, the coating bonding strength of the glass beads is improved, titanium dioxide is plated on the surfaces of the glass beads in situ, the refractive index is improved, and meanwhile, good wear resistance is achieved.

The application belongs to the field of high-efficiency preparation and processing of composite materials, and particularly relates to a three-dimensional angle interlocking structure composite material and a forming process. The composite material comprises a reinforcing phase and a matrix phase, and the reinforcing phase is a carbon fiber three-dimensional angle interlocking structure fabric. 5%-40% of wave-transparent fibers are mixed into the carbon fiber three-dimensional angle interlocking structure fabric, and the wave-transparent fiber material is one or more of glass fiber, polyamide fiber and polyester fiber. In the condition of not increasing the thickness of the fiber reinforcing phase or adding microwave-sensitive materials in the resin matrix, the microwave penetration ability in the thickness direction of the composite material is improved by adjusting the structure of the preform, and the practical application of the high-efficiency microwave curing technology of the composite material is realized.

The application relates to a fiberboard production line containing vacuum extrusion and microwave curing, and relates to the technical field of hollow plate production lines, in order to solve the problems of insufficient strength and durability of the hollow plate, and the fiberboard production line comprises a conveying assembly and a heating assembly, the conveying assembly comprises two mutually parallel supporting plates, and a plurality of rollers are rotationally arranged between the two supporting plates; the heating assembly comprises a sealing cover, the sealing cover is arranged on the conveying assembly, a microwave heater is arranged in the sealing cover, and the microwave heater is used for heating the hollow plate. The application has the effect of improving the strength and durability of the hollow plate.

This invention pertains to the manufacturing technology of cardboard boxes, and particularly relates to an insulated cardboard box material and its preparation method. The method includes: (1) mixing organic polymer, isocyanate, organic zirconium, silane and weak acid in a certain proportion to prepare a polymer precursor; (2) electrospinning and drying to prepare polymer fibers; (3) mixing polymer fibers, silane reagent, acyclic carboxylic acid and fatty ketone in a certain proportion to prepare a polymer fiber colloid; (4) adding the polymer fiber colloid to the pulp in a certain proportion during the pulping process of the cardboard box, and obtaining the insulated cardboard box material through conventional treatment. This invention provides a fiber material with good heat insulation effect and modifies it so that the fiber can be used in the preparation of insulated cardboard boxes. Through the microwave curing process of polymer fiber colloid, the mechanical properties of the insulated cardboard box are improved, and the energy dissipation inside the insulated cardboard box and the absorption and reflection of infrared radiation are optimized.

The utility model discloses a microwave curing device for producing self-heating rice, which comprises an operating table, both sides of the operating table are fixedly connected with fixing frames, both sides of the top end of each fixing frame are fixedly connected with a first electric push rod, and the extension end of each first electric push rod abuts against a microwave curing box. A threaded rod is rotationally connected to the interior of one side of the upper portion of the operation table, threaded blocks are connected to the middle and one side of the threaded rod in a threaded mode, an electric telescopic rod is fixedly connected to the top end of each threaded block, and the extending end of each electric telescopic rod is fixedly connected with the microwave curing box. A second electric push rod, a moving plate and a second motor are arranged, the second electric push rod extends to push a self-heating rice meal box body to the position above the moving plate, then the second motor moves to the middle position of an operation table in a threaded mode, and then the second electric push rod in the middle extends to push the self-heating rice meal box body above the moving plate to the position above a conveying belt. The conveying operation is convenient.

This invention relates to the field of adhesive bonding and repair of aircraft structural composite materials, specifically a method for rapid repair of aircraft cracks based on VIMP-microwave technology. The specific steps are as follows: S1, determine the solution; S2, grind; S3, prepare and cut materials; S4, prevent potential corrosion; S5, connect to vacuum; S6, water bath heating; S7, bond; S8, fill the mold; S9, absorb microwaves; S10, cure; S11, secondary grinding. This invention combines the VIMP process with microwave curing technology. By readjusting the adhesive formulation, it shortens the repair operation time and adhesive curing time. Simultaneously, the repair platform can be integrated into a field repair kit for easy transport during emergency repairs.

The invention discloses sprayed concrete and a microwave curing method thereof. The sprayed concrete is prepared from Portland cement, modified nano magnetic fluid, high-iron fly ash, water, sand, gravel, an accelerator and a water reducing agent. The modified nano magnetic fluid is prepared from nano Fe3O4 magnetic fluid and surface modified nano SiC under the action of a stabilizer and a dispersing agent. The modified nano-magnetofluid, the high-iron fly ash and other components are added into the sprayed concrete and combined with microwave heating curing, based on the good electromagnetic wave absorbing performance and magnetic loss characteristics of the modified nano-magnetofluid in the concrete, the early strength of the concrete can be effectively and remarkably improved, the later strength is not affected, and the service life of the concrete is prolonged. The method has obvious technical advantages and environmental protection benefits, and is suitable for tunnel and mine construction conditions with large surrounding rock deformation and poor stability, and projects with high requirements on the early strength of the sprayed concrete, such as various first-aid repair and rush building.

The application discloses a kind of super diameter carbon fiber composite material microwave curing tunnel furnace equipment and method, including curing equipment body, the central fixed connection of curing equipment body top has microwave source, the left side fixed connection of curing equipment body inner chamber bottom has fixed component, the right side movable connection of fixed component has tension adjusting assembly, rotatingly connected in the inner chamber of curing equipment body has feeding roller, the outer wall fixed connection of feeding roller has brush head, the left side movable connection of two drive components bottom has laser length measuring instrument, the left side of curing equipment body is provided with recovery component, the inner chamber fixed connection of recovery component has electric heating wire, rotatingly connected in the inner chamber of recovery component has scraper.The super diameter carbon fiber composite material microwave curing tunnel furnace equipment and method of the application, this equipment can control tension and length to fiber silk, so as to guarantee the precision of finished product.

The application discloses a kind of steel slag cement concrete accelerated curing methods based on three-stage microwave control, including preparation steel slag cement concrete mixture C, after pouring out mixer of prepared steel slag cement concrete mixture C, uniform pouring into test mould, sequentially carried out initial microwave accelerated curing, mid-term microwave curing and later microwave curing in microwave curing equipment;After the end of later curing, concrete component is removed from microwave curing equipment and can be demoulded, then natural cooling to room temperature can complete curing;Three-stage microwave curing strategy is used, by accurately regulating and controlling microwave frequency, power, temperature and heating rate and other parameters of each stage, realize the rapid, uniform heating of concrete, effectively promote the hydration reaction of each component in steel slag cement concrete, accelerate the strength development of concrete, while it can realize efficient, energy-saving, environmental protection curing effect.

The invention discloses a mildew-proof and antibacterial bamboo-wood curtain material and a preparation method thereof, and belongs to the field of building materials. The material is prepared from wormwood, golden cypress, tea polyphenol, nano-zinc oxide, chitosan, a silane coupling agent and bamboo wood through the processes of nitrogen carbonization, ultrasonic extraction of natural components, plasma activation, microwave curing, silane hydrophobic modification and the like. Flavones, volatile oil, phellodendron berberine and tea polyphenols are synergistically antibacterial through multiple mechanisms of blocking metabolism, destroying cell membranes and the like, nano-zinc oxide photocatalysis and a chitosan cross-linked network are combined, a composite antibacterial system with the antibacterial rate exceeding 99% is formed, a hydrophobic layer with the contact angle larger than or equal to 93.2 degrees is constructed through a silane coupling agent, the water content is smaller than or equal to 8%, and mold growth is fundamentally inhibited. Tests show that the compressive strength of the material is improved by 22%, the antibacterial rate still reaches 96.2% after 50 times of water washing, and the material has the characteristics of high-efficiency antibacterial property, lasting mildew resistance, hydrophobicity, moisture resistance and high strength, and is suitable for bamboo and wood products such as curtains in a high-humidity environment.

The application discloses a preparation method of a silicon-based composite aerogel containing metal oxides. The silicon-based composite aerogel is prepared by using a silicon source such as a silica sol or an ester silicate and an inorganic metal salt as a reaction raw material, an alcohol aqueous solution as a solvent, adjusting the pH value of a reaction solution to control the hydrolysis and polycondensation of the reactants, and obtaining a two-phase / multi-phase sol through one-step hydrolysis, so that the preparation process of the sol is simplified. In combination with a microwave curing process, the gel is rapidly prepared, and the obtained gel is subjected to solvent replacement and drying to obtain the silicon-based composite aerogel containing amorphous metal oxides. The silicon-based composite aerogel prepared by the method has excellent high-temperature resistance. After being treated at 1000 DEG C for 30 min, the silicon-based composite aerogel still maintains an amorphous phase structure, and the structure collapse caused by crystallization is avoided.

The application discloses a low-energy-consumption microwave-assisted prefabricated brick rapid curing device, which comprises a heating curing box, a heat exchange recovery mechanism and a low-energy-consumption microwave generator, low-energy-consumption microwave generators are arranged at the two ends of the outer side of the heating curing box, the low-energy-consumption microwave generator adopts a high-efficiency solid-state microwave power amplifier, a heating cavity is arranged in the heating curing box, a heat-conducting corrugated metal sheet is arranged on the top wall of the heating cavity, and heat gathering grooves are arranged on the top of the heating curing box. The low-energy-consumption microwave-assisted prefabricated brick rapid curing device uses the heating cavity of the heating curing box as a prefabricated brick curing space, uses the low-energy-consumption microwave generator as a core component for generating microwave energy, and transmits the microwave energy generated by the low-energy-consumption microwave generator into the heating cavity under the guidance of the inner side waveguide metal pipe, radiates the microwave energy into the heating cavity, and performs microwave curing on the prefabricated bricks on the inner side.

This invention discloses a device for manufacturing harmless precast building materials from solidified fly ash products. The device comprises a fly ash pretreatment system, an aggregate supply system, a binder supply system, a mixing and micro-encapsulation system, a molding system, a microwave curing system, and a sensing and control system connected in sequence to each system. After screening and drying, the fly ash is premixed with electrostatically treated multi-grade aggregates in the fly ash adsorption chamber of the aggregate supply system. The premixed material enters the mixing and micro-encapsulation system, where it is mixed with asphalt and resin supplied by the binder supply system. Simultaneously, an encapsulating agent is sprayed through atomizing nozzles for micro-encapsulation. The mixture is pressed into a blank in the molding system and rapidly cured into harmless precast building materials in a microwave curing sealed chamber. This invention achieves intelligent linkage throughout the entire process through the sensing and control system, combined with a multi-layer sealing structure, solving the problems of long curing cycles, high energy consumption, and lack of system integration in existing technologies, thus realizing the efficient and clean resource utilization of hazardous fly ash.

The invention provides superfine organic powder as well as a preparation device, a preparation method and application thereof, and relates to the technical field of organic powder preparation. The superfine organic powder is prepared by curing raw materials, and the raw materials comprise curing resin and / or curing monomers; wherein the curing mode comprises at least one of microwave curing, laser curing or EB curing. Through detection and verification, not only can the super-hard and super-tough spherical organic powder be prepared, but also the flexible organic powder with a fluffy feeling and the organic powder with various colors can be prepared, and the organic powder has the characteristics of excellent transparency, weather resistance and the like.

The invention discloses a vacuum impregnation and microwave curing combined anti-corrosion treatment method for a pipeline flange sealing surface, which specifically comprises the following steps: S1, preparation of an anti-corrosion coating, S2, surface pretreatment, S3, vacuum impregnation, S4, normal-pressure impregnation, S5, microwave curing and S6, post-treatment, and relates to the technical field of anti-corrosion treatment for the pipeline flange sealing surface. According to the vacuum impregnation and microwave curing combined pipeline flange sealing surface anti-corrosion treatment method, permeability can be improved, the vacuum impregnation technology enables anti-corrosion paint to fully permeate into micropores and capillary tubes of the flange sealing surface under the negative pressure effect, curing time is greatly shortened, uniform curing can be achieved, microwave heating is a body heating mode, and the service life of the pipeline flange sealing surface is prolonged. The whole flange sealing surface is synchronously heated, stress concentration and defects caused by temperature gradient in a traditional method are avoided, the corrosion resistance is greatly improved, and the method is easy to operate, suitable for factory batch production, wide in applicability and suitable for pipeline flange sealing surfaces made of various materials.

The application provides a method for evaluating the response speed and reaction strength of a resin material microwave curing process, so as to select a resin base element material suitable for microwave curing. The method combines molecular dynamics simulation and quantum chemical calculation, and studies the dynamic change process of the resin under the microwave field by introducing an alternating electric field. Specifically, the reaction energy barrier under the microwave field is simulated from the transition state theory; the influence of the microwave on the chemical reaction rate is clarified from the effective collision theory; and the promotion effect of the microwave on the curing activity of the resin base element material is analyzed from different dimensions. Based on the above steps, a selection method is established with temperature, reaction energy barrier and effective collision probability as criteria. The application overcomes the limitation that traditional instruments and equipment cannot accurately in-situ characterize the microwave reaction, can pre-evaluate the design and synthesis of the microwave curing resin base element material, and thus improves the microwave curing efficiency of the resin base composite material and reduces the production cost.

The invention belongs to the technical field of paper packing materials, and discloses a paper packing material strengthening process which comprises the following steps: taking ultra-thin corrugated paper of which the quantitation is less than or equal to 80g / m as a raw material; the method comprises the following steps: physical ultrasonic activation or chemical oxidation activation of fibers, fine screening of fibers, compounding and adding of an environment-friendly reinforcing agent, additional addition of a retention aid, control of corrugated forming parameters, preparation of a double-sided differentiated coating, addition of a specific auxiliary agent, low-temperature hot air curing and infrared curing or microwave curing, and recovery of waste heat of steam tail gas in the curing process. A wear-resistant additive is added into an outer surface coating, surface tension is controlled to guarantee printability, finally, the advantage of light weight is kept, meanwhile, ring crush strength is improved by more than or equal to 30%, edge crush strength is improved by more than or equal to 25%, the environmental protection index reaches the standard, and the purchase cost can be reduced by more than 25%. The method adapts to existing equipment and multiple application scenes, and industrialization can be rapidly achieved.

The invention discloses a construction method of a quick repair material prepared from concrete waste in an expansion joint anchoring area, which comprises the following steps: firstly, preparing powder and crushing concrete chiseled off on site by using a crusher to obtain fine waste with the particle size of less than or equal to 2.36 mm and 2.36 mlt; the particle size of the coarse waste is smaller than or equal to 25 mm; uniformly mixing the powder with a certain amount of fine waste and water-borne epoxy resin modified graphene oxide, adding a curing agent and water, uniformly mixing, and pouring into the chiseled working surface of the anchoring area of the expansion joint to fill the hole; uniformly mixing the powder with a certain amount of coarse waste and waterborne epoxy resin modified graphene oxide, adding a curing agent, the powder and water, uniformly mixing, pouring into a working surface, vibrating, finishing the surface, and performing microwave curing for 40-60 minutes. According to the construction method of the rapid repairing material, the plugging material and the concrete in the anchoring area are formed respectively, so that the cracking resistance and the impact resistance of the rapid repairing material are improved, the interface bonding strength and toughness of the rapid repairing material and the anchoring area of the bridge expansion joint to be repaired are improved, and the maintenance time is short.