818results about How to "Reduce penetration" patented technology

The invention discloses a microencapsulation repairing agent and an intelligent self-repairing ultrahigh-strength ultrahigh-toughness cement-based structural material, the microencapsulation repairing agent is mainly composed of a humidity-responsive outer layer, a pH-responsive middle layer and a temperature-responsive inner layer, and the outer layer is modified with a silane coupling agent. The intelligent self-repairing ultrahigh-strength ultrahigh-toughness cement-based structural material is mainly prepared from the microencapsulated repairing agent, nano carbon black, nano montmorillonite, nano cellulose and other raw materials. According to the invention, by introducing the self-repairing microcapsule with a specific structure and materials such as nano carbon black, nano montmorillonite and nano cellulose, the strength, toughness and durability of the concrete are remarkably improved, and the concrete has an intelligent self-repairing function.

The invention relates to the technical field of alloy materials, in particular to a high-strength alloy material based on a rail transit vehicle and a processing technology of the high-strength alloy material. Raw materials are smelted and cast to obtain a cast ingot; the cast ingot is sequentially subjected to solution treatment and aging treatment, and an alloy material is obtained; uniformly mixing the compound, mica powder, a curing agent and an epoxy diluent, adding epoxy resin, a defoaming agent and a flatting agent, and performing ultrasonic treatment to obtain a corrosion-resistant coating; the high-strength alloy material is obtained by sequentially grinding, polishing, cleaning and drying the surface of an alloy material, coating a corrosion-resistant coating, and curing to form a corrosion-resistant coating. The prepared high-strength alloy material has excellent mechanical properties, corrosion resistance and hydrophobicity, and is suitable for application requirements of rail transit vehicles.

The invention relates to the technical field of photovoltaic packaging materials, and discloses a black high-reflection infrared integrated packaging material and a preparation method thereof, and the black high-reflection infrared integrated packaging material comprises a bonding packaging layer, a light management layer, a mechanical transition layer and an insulating supporting layer which are arranged from top to bottom; all the layers are subjected to integrated melting and co-extrusion to obtain the packaging material; the first melting point of the bonding packaging layer is 70-100 DEG C, the second melting point of the bonding packaging layer is 110-130 DEG C, and the content of the cross-linked gel after irradiation is 5-30%; the melting point of the light management layer is 70-130 DEG C, the light management layer comprises a perylene black surface layer and a white light reflecting layer which are sequentially arranged, the visible light absorptivity of the perylene black surface layer is larger than or equal to 90%, and the infrared light transmittance of the perylene black surface layer is larger than or equal to 50%; the melting point of the mechanical transition layer is 90-130 DEG C; and the melting point of the insulating support layer is 120-180 DEG C. According to the invention, the high transmittance of infrared light is maintained while the deep black appearance is realized, the secondary absorption of the infrared light can be realized, and the overall efficiency of the assembly is improved.

The invention relates to the field of sprayed concrete, in particular to green low-carbon high-performance sprayed concrete using active regenerated micro powder and a preparation method and a construction process of the green low-carbon high-performance sprayed concrete. The sprayed concrete is prepared from the following components in parts by weight: 300 to 350 parts of cement, 50 to 80 parts of active regenerated micro powder, 60 to 120 parts of early strength type mineral admixture, 20 to 40 parts of rubber powder, 10 to 20 parts of hydrophobic compacting agent, 700 to 800 parts of coarse aggregate and 800 to 900 parts of fine aggregate, the mixing amount of the water reducing agent is 0.8%-1.2% of the mass of the cementing material, and the mixing amount of the fluoride-free alkali-free accelerator is 6%-9% of the mass of the cementing material; wherein the active regenerated micro powder is composed of multi-component isomeric alcohol amine and regenerated micro powder, and the dosage of the multi-component isomeric alcohol amine is 0.1%-0.5% of the mass of the cementing material. The cement consumption of the sprayed concrete can be reduced, and the requirement for high performance of the sprayed concrete is met.

The invention relates to green low-carbon functional inorganic rock coating artistic effect paint and a preparation method thereof, and belongs to the technical field of paint. The waterborne epoxy resin emulsion is modified, the aminated calcium carbonate and the modified carboxymethyl cellulose are introduced, and multiple components act together, so that the adhesion level is effectively improved, and good salt fog resistance and aging resistance are obtained.

The invention relates to the technical field of cement-based anticorrosive materials, and particularly discloses a modified magnesium phosphate cement anticorrosive material as well as a use method and application thereof. The anticorrosive material comprises the following components in parts by weight: 100 parts of modified magnesium phosphate cement, 3-15 parts of a retarder, 1-10 parts of an epoxy resin glue solution, 0.5-5 parts of metakaolin and 15-20 parts of water. The modified magnesium phosphate cement comprises dead burned magnesium oxide and modified phosphate in a mass ratio of (1-4): 1. The modified phosphate is prepared from the following raw materials: nano aluminum oxide, sodium citrate and phosphate in a mass ratio of (0.5-1.5): (0.5-1.5): (20-25). The epoxy resin glue solution comprises uncured epoxy resin glue and a curing agent. The anti-corrosion material provided by the invention has the technical advantages of strong adhesive property and excellent anti-corrosion property, and can better provide protection for a steel structure serving in a marine environment.

The invention belongs to the technical field of water-absorbing material preparation, and provides a crop straw-based degradable water-absorbing resin as well as a preparation method and application thereof. The method comprises the following steps: pretreating crop straws by using an alkaline solution to obtain straw cellulose; the preparation method comprises the following steps: mixing straw cellulose, a first ethanol solution and a first alkali liquor for a first reaction, then adding a second ethanol solution and chloroacetic acid for a second reaction, and then adding a second alkali liquor for a third reaction to obtain straw cellulose sodium carboxymethyl; and mixing the straw cellulose sodium carboxymethyl, acrylic acid, an initiator, a cross-linking agent and water, and reacting to obtain the crop straw-based degradable water-absorbent resin. According to the method disclosed by the invention, a reaction inert structure in the straw cellulose can be removed, a crystalline region of the cellulose is destroyed, a homogeneous reaction preparation system is constructed, the grafting efficiency of the water-absorbent resin is improved, complete degradation of the water-absorbent resin is realized, and the production cost of the water-absorbent resin is also reduced.

The invention provides a medical packaging material and a preparation method thereof.The preparation method comprises the steps that S100, polypropylene, maleic anhydride grafted co-polypropylene, peroxide and filler are mixed, then melt extrusion and two-way stretching are conducted, and a printing layer is obtained; s200, respectively preparing a barrier layer and a heat sealing layer; and S300, the heat sealing layer, the blocking layer and the printing layer are sequentially stacked from inside to outside, and the packaging material is obtained. Through the preparation method of the packaging material, the prepared packaging material has excellent barrier property and antibacterial property while resisting high temperature, and can meet the requirements of the medical field.

The invention relates to the technical field of reverse osmosis membrane assembly cleaning, and particularly discloses a cleaning method of a reverse osmosis membrane. The cleaning method of the reverse osmosis membrane comprises the following steps: (1) washing the reverse osmosis membrane with product water of a reverse osmosis membrane system until concentrated water in the membrane is fully replaced with the product water; (2) immersing the cleaned reverse osmosis membrane into an acidic cleaning solution, and controlling the pH value to be 2-2.5; (3) washing the reverse osmosis membrane with product water of a reverse osmosis membrane system until concentrated water in the membrane is fully replaced with the product water; (4) immersing the cleaned reverse osmosis membrane into an alkaline cleaning solution, and controlling the pH value to be 11.5-12; and (5) repeating the steps (1)-(4), and flushing the reverse osmosis membrane with the product water of the reverse osmosis membrane system until the concentrated water in the membrane is fully replaced with the product water. The prepared reverse osmosis membrane has good cleaning efficiency, the permeation flux and the desalination rate of the reverse osmosis membrane are recovered, and the service life of the reverse osmosis membrane is prolonged.

The invention provides a high-water-resistance optical film and a polarizing plate comprising the same. The high-water-resistance optical film comprises a base film, a water-resistance layer and an adhesive layer, the structure of the high-water-resistance optical film comprises a water-resistance layer, a first adhesive layer, a base film and a second adhesive layer which are stacked in sequence, or the water-resistance layer, the base film and the second adhesive layer which are stacked in sequence, the surface of the waterproof layer is provided with nanometer protrusions and micropore structures which are uniformly and orderly arranged. The high-water-resistance optical film has excellent hydrophobicity, the water-resistance layer can efficiently absorb ultraviolet radiation, the problems of aging, yellowing, embrittlement and the like of the optical film caused by ultraviolet radiation are effectively prevented, the high-water-resistance optical film can be applied to a polarizing plate, and the service life of the polarizing plate is greatly prolonged.

The invention relates to the field of new energy storage materials, and discloses a multifunctional composite perfluorosulfonic acid ion exchange membrane for an all-vanadium redox flow battery, and the composite membrane comprises the following components: perfluorosulfonic acid resin which accounts for 60-90wt% of the total mass of the membrane and is used as a matrix material; the functionalized multi-walled carbon nanotube accounts for 5-15 wt.% of the total mass of the membrane, and carboxyl and hydroxyl are introduced through surface treatment; phosphotungstic acid accounts for 5-20wt.% of the total mass of the membrane, and is anchored on the surface of the functionalized multi-walled carbon nanotube through an electrostatic spinning process; n, N-dimethylformamide and isopropanol are used as solvents, and the solvents are mixed with a perfluorinated sulfonic acid resin solution according to the volume ratio of 1: 1. The proton conductivity, the vanadium ion barrier property and the tensile strength of the composite membrane are obviously superior to those of a traditional Nafion membrane. According to the technical scheme, an efficient and economical solution is provided for improving the overall performance of the all-vanadium redox flow battery, and the method has good application prospects and market value.

The invention relates to the technical field of electroslag remelting slag. The invention discloses a special slag system for an ingot pulling type electroslag remelting nitrogen-controlled austenitic stainless steel ingot, which comprises the following components in percentage by mass: 45-50% of CaF2, 25-30% of Al2O3, 15-20% of CaO, 3-6% of MgO, 5-10% of SiO2 and the balance of impurities, and the content of the impurities is less than or equal to 1%. The binary alkalinity CaO / SiO2 is 1.5 to 4; the melting point of the special slag system is 1250-1280 DEG C, the viscosity value of the special slag system at the temperature of 1600 DEG C is 0.044-0.053 Pa.s, and the resistivity of the special slag system at the temperature of 1600 DEG C is 0.51-0.55 omega.cm. According to the slag system, by optimizing the components of the slag system, the physical and chemical properties of the slag system are further improved, the slag-metal reaction is inhibited, and the production process requirements of ingot pulling type electroslag remelting large stainless steel ingots are met. The produced nitrogen-controlled austenitic stainless steel ingot is good in surface quality and free of defects such as obvious pits, slag runners and double skins; and easily oxidized elements Al and Si in the steel in the remelting process are uniformly distributed in the height direction of the cast ingot, so that the uniformity of alloy textures is ensured.

The invention belongs to the technical field of flow battery energy storage, and more specifically relates to a near-neutral total iron flow battery negative electrode electrolyte and a preparation method thereof, the negative electrode electrolyte is prepared from an iron salt, a chelating agent, a stabilizing agent, a supporting electrolyte and water at a certain temperature, the total iron concentration is 0.1-1.0 M, the molar ratio of the chelating agent to the iron salt is 1.2-2.0, the molar ratio of the stabilizing agent to the supporting electrolyte is 1.2-2.0, and the total iron concentration is 0.1-1.0 M. The molar ratio of the stabilizer to Fe is 0.25-1.0, the supporting electrolyte concentration is 0-2.0 mol / L, and the pH value is 7.0-8.5. The near-neutral negative electrode electrolyte for the total-iron flow battery is high in stability, can effectively inhibit generation of ferric hydroxide precipitates under a neutral condition, improves the stability of iron ions, greatly prolongs the cycle life of the total-iron flow battery, and can be widely applied to various aqueous flow batteries.

The invention relates to the technical field of polyurethane coatings, and discloses a preparation method of an antibacterial wear-resistant waterborne polyurethane coating, which comprises the following steps: taking concentrated hydrochloric acid, p-phenylenediamine, sodium nitrite, paraformaldehyde, amino-modified nano silicon dioxide and hexamethylene diisocyanate as raw materials; the preparation method comprises the following steps: taking 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide as a raw material, carrying out diazotization coupling reaction, substitution reaction, Mannich reaction and addition reaction to prepare modified polyisocyanate, then taking 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and ((2-aminoethyl) azadiyl) dimethanol as raw materials, carrying out substitution reaction to prepare DOPO-based dihydric alcohol, and carrying out reaction to prepare the DOPO-based dihydric alcohol. Finally, the modified polyisocyanate, DOPO-based dihydric alcohol and polyethylene glycol 400 are used as raw materials, an antibacterial wear-resistant polyurethane emulsion is prepared through a prepolymerization reaction and a chain extension reaction, and the prepared polyurethane coating has good antibacterial, anti-ultraviolet, flame-retardant and wear-resistant properties.

The invention relates to a fertilizer synergistic composition, a special corn fertilizer and a preparation method thereof, and belongs to the technical field of fertilizers. The fertilizer synergistic composition comprises the following components in percentage by weight: 0.6%-5.0% of polyaspartic acid, 1.2%-4.0% of polyacrylamide, 0.3%-2.0% of a nitrification inhibitor and the balance of zeolite powder. The invention also provides a special corn fertilizer containing the fertilizer synergistic composition. The polyacrylamide in the composition provided by the invention can improve the soil structure, increase the porosity and air permeability of the soil, improve the water retention capacity of the soil and reduce the permeability of the soil, so that the fertility of the soil and the yield of crops are improved. According to the fertilizer synergist, the utilization degree of a fertilizer is increased, the release speed of the fertilizer is controlled, and the fertilizer can act for a long time.

The invention provides a preparation method of an HNT modified polymer composite membrane. The preparation method comprises the following steps: S1, preparing dealuminated HNT; s2, preparing modified HNT by using the dealuminated HNT; s3, preparing sulfonated polyether ether ketone; s4, performing ionization treatment on the sulfonated polyether ether ketone; and S5, preparing the HNT modified polymer composite membrane by using the modified HNT and the sulfonated polyetheretherketone or perfluorosulfonic acid membrane obtained in the step S4. The problems that an existing flow battery diaphragm is poor in comprehensive performance, high in cost and not suitable for various systems are solved.

The invention discloses concrete with high salt corrosion resistance and a preparation method of the concrete. The concrete is prepared from 300-400 kg / m < 3 > of cement, 50-150 kg / m < 3 > of slag powder, 1000-1200 kg / m < 3 > of gravel, 650-800 kg / m < 3 > of machine-made sand, 0.5-2 kg / m < 3 > of a modified polycarboxylic acid water reducing agent, 0.005-0.01 kg / m < 3 > of an air entraining agent, 0.05-0.1 kg / m < 3 > of an ion chelating agent, 0.05-0.1 kg / m < 3 > of polyacrylamide, 0.01-0.05 kg / m < 3 > of sodium methyl silicate, 0.1-0.5 kg / m < 3 > of multiwalled carbon nanotube dispersion liquid and 140-160 kg / m < 3 > of water. The preparation method comprises the following steps: stirring and mixing the modified polycarboxylate superplasticizer, the air entraining agent, the ion chelating agent, the polyacrylamide, the sodium methyl silicate and part of the water for mixing to obtain an admixture mixed solution; sequentially putting broken stones, cement, machine-made sand, the admixture mixed solution, the multi-walled carbon nanotube dispersion liquid and the rest of mixing water into a stirrer, and stirring for 2-3 minutes, so as to obtain the concrete with high salt corrosion resistance. The concrete has high salt corrosion resistance in a complex service environment, the service life of a concrete structure is effectively prolonged, and a reliable guarantee is provided for infrastructure construction.

The present invention relates to a weather-resistant and anti-aging polyethylene pipeline and a preparation method thereof, and belongs to the technical field of polymer materials. The pipeline adopts high-density polyethylene resin, linear low-density polyethylene resin, polyimide resin powder, nano silicon dioxide, nano hexagonal boron nitride, polybenzimidazole fiber, carnosic acid, zinc glycyrrhetinate, antioxidant 1010, hindered amine light stabilizer, polydimethylsiloxane titanate cross-linked polymer, 3-methacryloxypropyl triethoxysilane as raw materials; wherein, polyimide resin powder, carnosic acid and zinc glycyrrhetinate are uniformly mixed, and then modified at 300°C to 350°C for 30min to 60min to obtain a modified product, which can better improve the weather resistance and aging resistance of the pipeline. Each component is compatible with each other, and a special modified preparation method is adopted to better play the synergistic effect of the components, and greatly improve the weather resistance and aging resistance of the polyethylene pipeline.

The invention discloses an inorganic composite phase change energy storage concrete material and a preparation method thereof, belongs to the technical field of concrete materials, and is used for solving the technical problems of poor freeze-thaw resistance and mechanical property of a common concrete material in the prior art. The inorganic composite phase-change micro-capsule cement comprises cement, inorganic composite phase-change micro-capsules, natural coarse aggregate, an air entraining agent and a modified water reducing agent, and is prepared by taking a phase-change material paraffin, fly ash, diatomite and expanded perlite mixture as a core material and a compound of organic modified apatite and polymethyl methacrylate as a wall material. The prepared inorganic composite phase change microcapsule not only has excellent heat storage performance and continuous freeze-thaw resistance, but also has excellent mechanical properties, and can replace fine aggregate in a concrete material, and a modified water reducing agent prepared by addition polymerization of multiple monomers has the advantages of high water reducing rate and good dispersity.

The present invention discloses a method for solidifying dredged sludge by using biological carbonization activated magnesium oxide technology, and belongs to the technical field of soil solidification. In the present invention, urease-producing bacteria are first used to prepare a pre-hydrolyzed urea solution, and then the pre-hydrolyzed urea solution and an activated magnesium oxide solidifying agent are separately and evenly mixed into dredged sludge with a certain water content according to a certain dosage, stirred to form a slurry, and the slurry is filled in a designated site or model and fully maintained. The present invention greatly reduces the construction cost and improves the feasibility and efficiency of solidification treatment of dredged sludge with high water content by introducing the technology of carbonization of urea solution pre-hydrolyzed by urease-producing microorganisms and activated magnesium oxide solidifying agent.

The invention belongs to the technical field of biomedical oral materials, and relates to novel POSS (Polyhedral Oligomeric Silsesquioxane) and a preparation method thereof as well as oral rehabilitation low-shrinkage composite resin as well as a preparation method and application thereof. The invention relates to a novel POSS (polyhedral oligomeric silsesquioxane) preparation method, which comprises: mixing trimethoxy [2-(7-oxabicyclo [4.1. 0] hept-3-yl) ethyl] silane, silane containing double bonds and an organic solvent, carrying out a hydrolysis-polycondensation reaction to obtain a liquid material, and carrying out liquid separation, suction filtration, washing, rotary evaporation and drying to obtain the novel POSS. The prepared novel POSS with the reaction double bonds and the epoxy shrinkage groups is good in biocompatibility and stability and has the remarkable low shrinkage characteristic and hydrophobicity, the low-shrinkage composite resin for oral cavity restoration prepared from the novel POSS as a functional component can remarkably reduce the polymerization shrinkage rate of the composite resin and reduce water permeation under the condition of a low addition amount, and the composite resin can be used as a functional component for oral cavity restoration of the oral cavity restoration of the oral cavity restoration of the oral cavity restoration of the oral cavity restoration of the oral cavity restoration of the oral cavity restoration of the oral cavity restoration of the oral cavity. The stability of the composite resin is improved, and the composite resin can be widely applied to various oral resins.

The utility model relates to the technical field of shutters, in particular to a glass clamp and a shutter assembly.The glass clamp comprises a clamp seat body, a binding face attached to a window frame is formed on the clamp seat body, and a drainage groove is formed in the binding face in the length direction; the clamping base body is further provided with an installation structure used for installing louver blades. The shutter assembly comprises a glass clamp and a frame, a drainage groove is formed in the frame in the length direction, and the frame is provided with a rotating structure used for installing the glass clamp. According to the scheme, the structure of the glass clamp is innovated, the drainage groove is additionally formed in the attaching face, so that when the outer side of the blind window is in the rain and strong wind state, rainwater and wind pressure permeate to play a flow guiding role, and the rainwater can flow along the drainage groove of the frame and the drainage groove of the glass clamp; pressure on the inner side of the glass clamp is reduced, so that rainwater entering the glass clamp and permeating into the inner side chamber is reduced, and the waterproof effect is achieved. Therefore, water flow is prevented from flowing into a room through the plane.

The invention relates to the technical field of toilet waterproofing, and provides a toilet waterproof structure and a construction method thereof.The toilet waterproof structure is arranged at the junction of a dry area finished surface and a wet area finished surface and sequentially comprises a threshold stone, a bonding layer arranged on the lower surface of the threshold stone and a waterproof layer arranged below the bonding layer from top to bottom; the upper surface of the threshold stone is flush with the upper surface of the dry area finished surface, the upper surface of the threshold stone is higher than the upper surface of the wet area finished surface, and the waterproof layer is laid on the upper surface of the structure base layer; the two sides of the waterproof layer extend to the positions below the dry area finished face and the wet area finished face respectively, and the waterproof layer comprises a first area arranged below the wet area finished face, a second area arranged at the junction of the threshold stone and the wet area finished face, a third area arranged below the threshold stone and a fourth area arranged below the dry area finished face. The waterproof structure has the beneficial effect that the waterproof effect of the doorsill of the toilet is improved.

The present application relates to the technical field of oil casing corrosion protection, and specifically to a marine anti-hydrogen sulfide and anti-carbon dioxide nickel-tungsten coating anti-corrosion oil casing and its preparation method. In the present application, the marine anti-hydrogen sulfide and anti-carbon dioxide nickel-tungsten coating anti-corrosion oil casing comprises a carbon steel pipe substrate, an inner anti-corrosion coating and an outer anti-corrosion coating, wherein the inner and outer anti-corrosion coatings both comprise a nickel-tungsten coating, an intermediate layer and a hybrid layer. The preparation method of the marine anti-hydrogen sulfide and anti-carbon dioxide nickel-tungsten coating anti-corrosion oil casing in the present application comprises the following steps: first, the carbon steel pipe substrate is pre-treated by cleaning and rust removal, and then the nickel-tungsten coating is coated; then the intermediate layer coating is uniformly coated on the surface of the nickel-tungsten coating, and finally the hybrid layer coating is uniformly coated on the surface of the intermediate layer. The marine anti-hydrogen sulfide and anti-carbon dioxide nickel-tungsten coating anti-corrosion oil casing prepared by the above method has excellent properties such as temperature resistance, wear resistance, impact resistance, corrosion resistance and self-cleaning.

The invention relates to an ultra-thin anti-oxidation stainless steel band, and relates to the technical field of metal materials, the ultra-thin anti-oxidation stainless steel band comprises an ultra-thin stainless steel band matrix, an electroplating corrosion-resistant layer and an anti-oxidation coating, the ultra-thin stainless steel band matrix comprises the following components in parts by mass: 2.5-3.5% of nickel, 6-8% of aluminum, 3.5-4.5% of zinc, 2-6% of tin, 0.05-0.1% of boron, 0.02-0.05% of bismuth, 0.05-0.07% of cobalt, 1.5-3% of manganese, 0.02-0.05% of phosphorus, 0.06-0.1% of lanthanum, and the balance of stainless steel. And the balance of iron and inevitable impurities. The preparation method of the ultrathin anti-oxidation stainless steel band comprises the following steps: preparing an ultrathin stainless steel band substrate; the method comprises the following steps: pretreating an ultrathin stainless steel band substrate, and immersing the pretreated stainless steel band in a plating solution for electroplating treatment to obtain a stainless steel band with an electroplated corrosion-resistant layer; mixing an antioxidant coating and a curing agent, coating the surface of the stainless steel band with the electroplated corrosion-resistant layer with the mixture, and heating and curing after the coating is aired to obtain the ultrathin antioxidant stainless steel band. The method has the effect of improving the oxidation resistance, corrosion resistance and tensile strength of the stainless steel band.

The invention discloses a preparation method of a degradable polylactic acid composite film, and belongs to the technical field of degradable materials.The preparation method comprises the following steps that S1, cellulose nanofibers and ethyl alcohol are mixed and then evenly mixed with polyethylene glycol at the room temperature, and a gelatinous compound is obtained after rotary evaporation; and S2, uniformly mixing the gelatinous compound obtained in the step S1 with a dichloromethane solution of polylactic acid with the concentration of 0.96 mol / L and modified montmorillonite, casting onto culture dish glass, and drying in a drying oven to obtain the degradable polylactic acid composite film. According to the technical scheme, polylactic acid is poor in thermal stability and antibacterial property and moderate in oxygen permeability and water vapor permeability, the thermal stability and the antibacterial property of polylactic acid are remarkably improved by modifying montmorillonite, and the oxygen permeability and the water vapor permeability are remarkably reduced.

The invention relates to the technical field of road materials, in particular to a high-strength composite modified emulsified asphalt material as well as a preparation method and application thereof. According to the high-strength composite modified emulsified asphalt material provided by the invention, a three-dimensional cross-linked network is formed through the cross-linking reaction of the waterborne epoxy resin and the emulsified asphalt, and the addition of the alkaline silica sol further refines the particles of the emulsified asphalt, enhances the interaction among the particles and consolidates the strength of an asphalt matrix; therefore, the emulsified asphalt has remarkable binding power and stability, and shows higher compressive strength and shear strength after being cured. Meanwhile, the micro porosity of the emulsified asphalt is optimized, the permeability of moisture is reduced, the waterproof performance is enhanced, the high temperature resistance and low temperature resistance are improved, and when the emulsified asphalt is applied to a micro-surfacing mixture, the shear strength, durability, binding force with aggregate and water damage resistance of the micro-surfacing mixture are remarkably improved.

The present application relates to a green and low-carbon functional inorganic rock coating artistic effect paint and a preparation method thereof, belonging to the field of coating technology. The present invention modifies the waterborne epoxy resin emulsion and introduces amino calcium carbonate and modified carboxymethyl cellulose at the same time. The multi-components work together to effectively improve the adhesion level and obtain good salt spray resistance and aging resistance.

The invention discloses an anti-scouring three-dimensional ecological slope protection structure and relates to the technical field of slope protection, the anti-scouring three-dimensional ecological slope protection structure comprises a slope body, a groove is formed in the top of the slope body, a curing layer is fixedly connected to the inner surface of the groove, a drainage groove is formed in the front surface of the slope body, and a planting layer is fixedly connected to the outer surface of the slope body; the planting layer is located at the slope position of the outer surface of the slope body; according to the anti-scouring three-dimensional ecological slope protection structure, along with continuous impact of water flow on the baffles, the baffles can drive the brush plates to repeatedly move on the surfaces of the filter plates, the filter plates can be continuously cleaned through repeated movement of the brush plates, it is ensured that the filter plates are always kept in a circulating state, and reverse drainage can be continuously and stably conducted at the position of the water tank to slow down the water flow; power is provided for displacement movement of the baffles and the movable frame through flushing water flow, driving equipment does not need to be independently arranged, the construction cost of the slope protection is reduced, and the effects of energy conservation and emission reduction are achieved.