53results about How to "Barrier migration" patented technology

The invention discloses a heavy metal polluted soil repairing agent with a high content of biocarbon and humus, and an application method thereof. The repairing agent is composed one or more of kitchen garbage, blue algae, livestock and poultry manure, straw, wood chip, rice husk, plant wastes, dead animal due to diseases and residual body of livestock and poultry. The raw materials mentioned above is subjected to steps of impurity removing, grinding, and proportioning, and then the mixture is subjected to a sub-critical water treatment for 90 to 150 minutes at a temperature of 180 to 360 DEG C under a pressure of 1.8 to 5.8 MPa so as to obtain the tail product; wherein the biocarbon content accounts for not less than 45% of the dry substrate, the total nutrient content is 4 to 6%, the amino acid content is not less than 20%, the humus content is not less than 40%, the trace element content is not less than 0.5%, and the pH value of the repairing agent is 5 to 7. The provided repairing agent can be used to repair polluted soil, and can also be used to treat the soil secondary salinization and hardened soil caused by over application of chemical fertilizer and pesticides. The organic solid waste pollutants are processed to produce the repairing agent, thus the environment pollution problem is solved, and at the same time, the biocarbon and humus in the tail product can repair and improve the soil polluted by metals, chemical fertilizers, and pesticides.

The invention discloses a lithium-sulfur battery with a composite structure. The lithium-sulfur battery comprises a negative electrode, a diaphragm and a positive electrode which are stacked in sequence, wherein a composite sulfur-blocking layer is arranged between the diaphragm and the positive electrode. The composite sulfur-blocking layer can effectively block the migration of lithium polysulfide, so that lithium polysulfide is prevented from being in direct contact with the negative electrode to generate a reaction, and the cyclic stability and coulombic efficiency of the battery are improved; and the composite sulfur-blocking layer can release the capacity, so that the battery capacity can be integrally expanded.

The invention discloses a high-performance cross-linked anion membrane and a preparation method thereof. The anion membrane is prepared from polymer containing benzyl halide perssad by means of biguanide or multi-guanidine cross-linking. The membrane can be applied to fuel batteries or energy storage batteries containing acid electrolyte flow. The membrane is compact in structure, low in deformation and moisture content and fine in ion selectivity, and is fine in thermal stability and anti-oxidation stability due to more dispersive distribution of positive charges. In addition, diffusion of vanadium ions in a full-vanadium-flow energy storage battery can be effectively blocked by high alkalinity of the biguanide or multi-guanidine inter-linked anion membrane, simultaneously, swelling can be inhibited by the inter-linked property, diffusion of the vanadium ions further can be inhibited, coulombic efficiency of the battery is increased to reach 99% at least, and high stability, high conductivity and low swelling are realized.

The invention discloses a heavy metal soil repairing material in a paddy field based on biocarbon blending fertilizer. The biocarbon blending fertilizer is prepared by mixing biocarbon with chemical fertilizer; the biocarbon blending fertilizer is applied to soil, so that the effects of restoring heavy metal soil environments and improving soil physicochemical condition can be met, the effectiveness of nutrient elements of soils also can be affected, efficiency-increasing and production-increasing effects of carbon fertilizer are improved, and meanwhile, by utilizing the biocarbon subjected tospecial processing, the specific surface area is further improved, and thus, adsorption capability of pollutants in the soils can be enhanced; and saturated organic pollutants are decomposed througha microbial agent, so that the biocarbon can keep an adsorption effect on the pollutants in the soils for a long time, and improve a comprehensive treatment effect of the soils; and compared with conventional compound fertilizer, the biocarbon blending fertilizer disclosed by the invention has the advantages that accumulation of heavy metals is controlled, the yield of paddy rice can be increased,and the biocarbon blending fertilizer has popularization and application prospects in control of ecological environment pollution in the paddy field and application reduction and efficiency improvement of chemical fertilizer.

The invention discloses a mosquito-resisting PVC coating film material and a coating knife-scraping process thereof. The mosquito-resisting PVC coating film material comprises a base cloth layer. The front face of the base cloth layer is coated with a first base coat, and the back face of the base cloth layer is coated with a second base coat. The surface of the first base coat is coated with a first mosquito-resisting coating, and the surface of the second base coat is coated with a second mosquito-resisting coating. The base cloth layer is composed of base cloth. The mosquito-resisting PVC coating film material is prepared through the coating knife-scraping process; and due to the fact that the prepared mosquito-resisting PVC coating film material can repel mosquitoes, the situation that insects are gathered on the surface of the PVC coating film material one by one, the coating film material is corroded, the color of the appearance is changed in less serious cases, and the film material is aged and scraped in advance in serious cases is avoided.

The invention discloses graphene modified fire-proof paint and a preparation method thereof. The graphene modified fire-proof paint is prepared from a vinyl acetate-ethylene copolymer emulsion, ammonium polyphosphate, pentaerythritol, tripolycyanamide, graphene modified silicon dioxide powder, titanium dioxide, an additive and the balance water. The invention further discloses the preparation method of the graphene modified fire-proof paint. In the fire-proof paint, graphene can be stably dispersed, and moreover, due to the introduction of the two-dimensional material graphene, the problems are solved that after being dried completely, a coating is prone to cracking and poor in water resistance, and a foaming thermal-insulating layer is low in mechanical strength and easily falls off; thecompactness and the regularity of a carbon layer are improved, high-temperature cracking of the coating is prevented, and the fire-proof effect is improved.

The invention relates to a waterborne surface coating for a three-rolling and one-baking process and a preparation method thereof. The coating is a single component and comprises 8-12 parts of polyether modified cation acrylic resin with a comb structure, 2-3 parts of amino resin, 0.2-0.8 part of neutralizer, 20-30 parts of filler, 2-4 parts of nano titanium sol, 0.05-0.2 part of waterborne flatting agent, 0.05-0.3 part of waterborne thickener and 49.7-67.7 parts of deionized water, wherein the viscosity is 100-160s, and the fineness is smaller than or equal to 15mu m. The coating disclosed by the invention is applicable to a three-coating and one-baking process of a metal work-piece, the adhesive force of the coating is obviously better than that of the three-coating and three-baking process, and no color migration between three coatings is generated. The final hardness of the coating can be up to 2H, the impact strength is 50Kg.cm, the adhesive force is 0 level, the waterborne surface coating also has excellent weathering resistance, the light loss rate is smaller than or equal to 10%, delta E is smaller than or equal to 1.0 by a QUV aging test for 1500 hours, the waterborne surface coating has good corrosion resistance, the salt fog resistance can be up to 1,000 hours, and the one-way corrosion width is smaller than or equal to 2mm.

The invention relates to a method for restoring an ionic rare earth ore ammonium salt leaching site, which comprises the steps of carrying out primary leaching by using a calcium and/or magnesium-containing salt solution and carrying out secondary leaching by using a calcium-containing alkaline aqueous solution or slurry, so that reinforced leaching of residual ammonium salt in the ammonium salt ore leaching site, controllable adjustment of the pH value, in-situ chemical curing of sulfate radicals and rapid regulation and control of the content of calcium and magnesium nutrient elements can be achieved, the used leaching water amount is small, the leaching period is short, the leaching effect is good, the technology is simple, the cost is low, and a solid technical guarantee can be provided for ion type rare earth ore ammonium salt leaching site restoration and eco-friendliness.

The invention belongs to the technical field of films, and particularly relates to a label film. The PET (polyethylene terephthalate) label film is characterized in that a coating, a PET film, an aluminum layer, an adhesive layer and a substrate are sequentially arranged to form an integrated structure; the coating is formed by mixing matrix resin, an active diluent, deionized water, a defoaming agent, a leveling agent and a wetting dispersant, and comprises the raw materials in parts by weight as follows: 16-70 parts of the matrix resin, 10-55 parts of the active diluent, 9-50 parts of the deionized water, 0.3-0.8 parts of the defoaming agent, 0.4-1 part of the leveling agent and 0.4-1.2 parts of the wetting dispersant; the thickness of the coating is 0.5-1 mu m; the thickness of the PET film is 45-50 mu m; the thickness of the aluminum layer is 401-500 angstroms. The label film has good printing ink adhesion force, and oil fouling produced on the surface of the label film can be prevented.

The invention provides a solid oxide fuel cell, a cerium oxide-based isolation layer and a preparation method of the cerium oxide-based isolation layer. The method comprises the steps that (1), a cerium-based alloy is used as a target material, a vacuum coating method is adopted for preparing a cerium-based alloy film on the surface of an electrolyte layer of a half cell of the solid oxide fuel cell, zirconium oxide-based ceramic film is adopted as the electrolyte layer, and an alloy film of cerium and a rare earth element with valence being trivalent is adopted as the cerium-based alloy film; and the half cell with the cerium-based alloy film obtained in the step (1) is sintered at the temperature of 900-1100 DEG C, and the cerium oxide-based isolation layer is formed on the electrolyte layer of the half cell of the fuel cell. By means of the cerium oxide-based isolation layer, performance and long-term operation stability of the solid oxide fuel cell are improved.

The invention relates to the technical field of soil ecological environment remediation, in particular to an environment-friendly soil ecological environment treatment method, which comprises the following steps: S1, screening and crushing contaminated soil by using mechanical equipment to obtain primarily treated soil; and S2, transferring the primarily treated soil to a treatment tank, adding asoil adsorption solution with the volume 4.5-5 times that of the soil, stirring to uniformly mix the soil and the soil adsorption solution, and reacting at 23-25 DEG C for 4.5-5.5 hours to obtain secondarily treated soil. The method can effectively solve the problem that when people want to repair the ecological environment of the soil, generally, chemical reagents are used for treating soil to remove heavy metal elements contained in the soil, however, the used chemical reagents damage the ecological environment of the soil, and the residual chemical reagents in the soil can also enter the surrounding environment along with water flow and air to pollute the environment.

The invention belongs to the technical field of materials, and relates to a manufacturing method of nano-copper antibacterial and antiviral melt-blown cloth master batch. The method comprises the following steps of mixing and hybridizing graphene, nano-copper, microporous silicon dioxide and a nano-microcapsule wrapping material to obtain a nano-microcapsule-coated graphene composite material; and mixing and melting the nano-microcapsule-coated graphene composite material and a polypropylene material, and carrying out extrusion granulation to obtain the nano-copper antibacterial and antiviral melt-blown cloth master batch. The invention also relates to application of the nano-copper antibacterial and antiviral melt-blown cloth master batch obtained by the preparation method in melt-blown cloth with antibacterial and virus-inactivating properties. According to the method and application, the nano-copper is used as an antibacterial auxiliary agent to form the nano-microcapsule-coated graphene composite material, and the nano-microcapsule-coated graphene composite material and the polypropylene material form the melt-blown non-woven fabric master batch so that the nano-copper can be firmly embedded in a polyester fiber molecular structure to form a non-dissolution type antibacterial fiber, and then the fiber and the non-woven fabric obtain continuous antibacterial property.

The invention discloses a textile dye transitional obstruct thermoplastic polyurethane membrane composition and its manufacturing process, which consists of applying the thermoplastic polyurethane (TPU) compound with the function of obstructing the textile dye form transitting onto the general thermoplastic polyurethane membrane to obstruct the dye to transit onto the membrane surface to pollute the contact materials; and because the thermoplastic polyurethane compound with an obstructing function is added with some metal or metallic oxide powders, those powders evenly disperse in thermoplastic polyurethane, and metallic powders with finite concentration can effectively obstruct the textile dye from transitting, therefore, the invention can effectively solve the apparent transitional phenomenon caused by high-heat weld of the thermoplastic polyurethane membrane with the unfast -color textile.

The invention relates to a filling method of an open-air pit, which comprises the following steps: filling the bottom of the open-air pit to be filled with first tailing slurry, and curing to form a first cementation curing layer; a plurality of parallel strip-shaped dry heap bodies are constructed on the top face of the first cementation solidification layer with fine tailings as raw materials, gaps are reserved between the two ends of each strip-shaped dry heap body and the open-air pit slope, and then the gaps between the strip-shaped dry heap bodies and the gaps between the strip-shaped dry heap bodies and the open-air pit slope are filled with second tailings slurry; curing to form a frame type cementation body; the top face of the frame layer is filled with third tailing slurry, curing is conducted, and a second cementation curing layer is formed; and repeating the steps until the target level is filled. The frame type filling structure obtained through the filling method for the open pit is good in stability, the filling cost can be effectively reduced, the operation efficiency is high, and the good popularization significance is achieved.

The invention discloses a fabric dye migrating barrier thermoplastic polyurethane membrane composition and a manufacturing method thereof. In the method, a layer of thermoplastic polyurethane (TPU) mixture with barrier fabric dye migrating function is attached on a common thermoplastic polyurethane membrane to prevent dye from migrating to the surface of the membrane to be polluted by a contactant. The thermoplastic polyurethane mixture with barrier function used by the invention is added with a part of metal or metal oxide powder which is evenly scattered in the thermoplastic polyurethane, and the migrating of the fabric dye is effectively prevented by the metal powder with certain concentration. Therefore, the composition can effectively solve the obvious migrating symptom due to the high temperature fusion of the thermoplastic polyurethane membrane and the fabric with poor dye fastness.

The invention belongs to the field of thin films, and particularly relates to a label film. The PP label film is characterized in that a coating layer, a PP thin film, an aluminum layer, a glued layer and a base material are sequentially arranged to make the PP label film be of an integral structure; materials of the coating layer is formed by mixing matrix resin, reactive diluents, deionized water, a defoaming agent, a flatting agent and wetting dispersants, the raw materials comprise, by weight, 16-70 parts of the matrix resin, 10-55 parts of the reactive diluents, 9-50 parts of deionized water, 0.3-0.8 part of the defoaming agent, 0.4-1 part of the flatting agent and 0.4-1.2 parts of the wetting dispersants, and the thickness of the coating layer ranges from 0.5 micrometer to 1 micrometer; the thickness of the PP thin film ranges from 45 micrometers to 50 micrometers; the thickness of the aluminum layer ranges from 401 angstroms to 500 angstroms. The printing ink of the label film is good in adhesive force, and greasy dirt can be prevented from generating on the surface of the label film.

The invention relates to an anti-PID coating and a preparation method and a use method thereof, and in particular relates to an anti-PID coating for photovoltaic module glass and the preparation method and the use method thereof. The coating is a UV-cured PID-resistant coating and is prepared from the raw materials of, by weight, 20 to 50 parts of a monomer, 5 to 30 parts of a UV curing agent, 10to 40 parts of oligomeric resin and 0.5 to 5 parts of an auxiliary agent. During preparation, the raw materials are uniformly mixed and stirred to prepare a solution. When in use, the coating is firstly coated on glass, and then ultraviolet rays are used for uniformly irradiating the inner side of the glass. According to the invention, the raw materials are easy to obtain; the preparation and usemethods are simple and convenient; and the effect is obvious.