32results about How to "Barrier through" patented technology

The invention relates to a zinc-graphene heavy-duty anti-corrosive coating and a preparation method thereof. The coating comprises a component A and a component B, wherein the component B contains a curing agent; the component A contains the following components in percent by mass: 10-20% of a graphene epoxy resin solution, 0.5-2% of an anti-settling agent, 15-30% of zinc powder, 2-10% of aluminum powder, 35-50% of an antirust pigment filling material and 5-10% of an organic solvent; the graphene epoxy resin solution comprises the following components in percent by mass: 1-10% of graphene, 80-90% of an epoxy resin solution, 5-10% of an organic solvent and 1-2% of an additive. Graphene is added into the coating, so that the zinc content is reduced, zinc oxide smog generated during welding is reduced, and the coating is super-strong in water resistance and corrosion resistance. When the coating is prepared, graphene is subjected to pre-soaking treatment to be uniformly dispersed on epoxy groups of epoxy resin, so that the defect that graphene is easy to agglomerate is overcome, the excellent performance of graphene is fully played, and an intermediate with the combination of the advantages of zinc and graphene is obtained. The salt-fog resistance time of the coating prepared by the intermediate is more than 1200 hours.

The invention relates to a novel floating floor and a building and constructing method for the same. The novel floating floor mainly comprises a reinforced concrete layer, a soundproof layer, a concrete cushion and a wood floor or other decorative floor on the concrete cushion, wherein, the soundproof layer is arranged between the reinforced concrete layer and the concrete cushion. The soundproof layer in the novel floating floor is made of polyolefin foaming materials which are formed by composition of a plurality of layers or by primary foaming and are provided with upper surface structures and lower surface structures. The total thickness of the polyolefin foaming materials is between 11 and 20 millimeters; the thickness of the upper layer is between 3 and 6 millimeters, and the density of the upper layer is between 50 and 100 kilograms per cubic meter; the thickness of the intermediate layer is between 5 and 8 millimeters, and the density of the intermediate layer is between 30 and 50 kilograms per cubic meter; and the thickness of the lower layer is between 3 and 6 millimeters, and the density of the lower layer is between 50 and 100 kilograms per cubic meter. The floating floor is waterproof, moistureproof and mildewproof, is small in thickness and light in weight, and has no pollution; and the floating floor does not require special construction equipment, can be conveniently laid, and is difficult to form rigid connection with a foundation floor and walling to create a sound bridge. The novel floating floor overcomes the defects of the prior floating floor, simultaneously has a good soundproof effect, is economic and practical, and has obvious effect.

The invention provides an antireflection and self-cleaning thin film and a preparation method thereof. According to the preparation method, a solid figure structure of a micron size is processed on a transparent flexible thin film through adopting imprinting technologies and surface modification technologies, so that the transparent flexible thin film has antireflection and self-cleaning performance; the antireflection and self-cleaning thin film is integrated on the window layer of a solar battery assembly, and as a result, the surface reflection of the window layer can be effectively inhibited, and the number of photons entering the absorption layer of a battery can be increased; and therefore, the photoelectric conversion efficiency of the battery can be improved, and especially, the efficiency of the battery can be improved more significantly when sunlight obliquely enters the battery. A super hydrophobic film or a super hydrophilic film can be selected as the antireflection and self-cleaning thin film of the invention; since the super hydrophobic film has a high water contact angle, when the super hydrophobic film tilts, water droplets are very easy to roll down and take away surface pollutants, and therefore, a self-cleaning effect can be realized; and based on the photocatalysis, the super hydrophilic film can degrade surface organic contaminations, and therefore, a self-cleaning effect can be also realized.

The invention relates to the field of composite materials and medical instruments, in particular to a preparing method for a high-strength high-isolation condom comprising a modified graphene/latex interlayer. The preparing method includes the steps that stable dispersion liquid prepared by modified graphene, latex liquid and common auxiliaries are mixed evenly to prepare compound latex liquid; a three-time impregnation process is adopted for forming, conventional latex liquid is used for impregnation in first-time and third-time impregnation, and the modified graphene/latex compound latex liquid is used as impregnation liquid in second-time impregnation to obtain the condom which is provided with conventional latex films on the innermost surface and the outermost surface and a modified graphene/latex compound material film interlayer in the middle to be of a sandwich structure finally. The prepared composite grapheme condom has the characteristic of blocking penetration of small-size viruses. Tear resistance and other indexes are obviously improved, and the blasting volume and the ultimate elongation rate are obviously increased on the premise of the same size. The high-strength high-isolation condom has the advantages of being scientific in principle, poisonless, harmless, stable in performance and capable of being matched with the current condem production process easily, and characteristics are remarkable.

The invention relates to an imidazole onium salt anion-exchange membrane and a preparation method thereof, belonging to an anion-exchange membrane. The invention provides an imidazole onium salt anion-exchange membrane with better thermal stability and chemical stability and a preparation method thereof. The imidazole onium salt anion-exchange membrane is prepared by adopting a polymeric membrane, and has a chemical structure of one class of high polymers with side chains containing imidazole onium salt. The imidazole onium salt anion-exchange membrane has a membrane ionic conductivity of being more than 0.01S/cm, has better thermal stability and chemical stability and can be used at high temperature and in a strong acid, strong alkali and strong oxidizing agent. The preparation method comprises the steps of: soaking a polymeric membrane in acetone, and drying to constant weight after cleaning; radiating a film by high-energy rays; placing the radiated film in a container, injecting monomers in the container to ensure that the film is completely immersed into the monomers, vacuumizing, charging inert gases to the container until no air exists in the container, placing a water bathfor reacting after sealing, removing unreacted monomers, and drying; and soaking the grafted film with a quaternization reagent, and washing with deionized water to obtain the imidazole onium salt anion-exchange membrane.

The invention relates to an agricultural greenhouse and a greenhouse cover material, and concretely relates to a preparation method of high performance polyolefin by using a coating technology and a nano modification technology. The high performance polyolefin coating agricultural film takes high performance polyolefin as a matrix, a functional master batch is added to prepare a base material film, and the agricultural film can be prepared by preciously coating through a coating liquid; the high performance polyolefin coating agricultural film is prepared by processes of preparing the functional master batch, preparing a base material thin film, performing corona treatment, winding the base material film, coating one surface by the coating liquid, drying the coating liquid, cooling and winding, on-line roll change, coating on the other surface by the coating liquid. The flow-dripping period and the service life can reach more than three years, and the agricultural film has the advantages of good heat insulating ability, pesticide resistance property and dirt resistance property.

The invention provides a pair of graphene-containing high-strength high-isolation composite latex gloves good in tear resistance and tensile strength and a preparation method thereof. The graphene-containing high-strength high-isolation composite latex gloves are prepared from, by weight, 0.05-0.1 part of graphene and 60 parts of latex solution. The pair of graphene-containing high-strength high-isolation composite latex gloves is flexible, and performance indexes such as tear resistance, tensile strength and ultimate elongation are obviously improved; and the transmission of small-size viruses can be effectively prevented. The graphene physical sterilization component does not make bacteria generate drug resistance, and the bacterial virus isolation capability of the gloves can be improved.

The invention provides a multilayer packaging glue film for a solar cell and a preparing technology thereof, and particularly discloses a multilayer packaging glue film capable of effectively improving the anti-PID performance of a solar cell assembly and a preparing technology thereof.According to the specific formula proportion and the preparing technology, three glue films with different characteristics are compounded, the ion barrier performance, the insulativity and the water-vapor permeating barrier performance of the product are improved at the same time, and the anti-PID performance generated when the packaging glue film is used is further effectively improved.Compared with a traditional EVA packaging glue film in the market, the anti-PID performance generated when the product prepared with the preparing technology is used is obviously improved.

The invention provides a tile joint filling paste. The paste at least comprises the following components in parts by weight: 6 to 17 parts of water, 0.4 to 1.2 parts of potassium trimethylsilanolate, 0.27 to 0.32 part of dispersant, 0.08 to 0.12 part of wetting agent, 16 to 35 parts of high active quartz powder, 25 to 45 parts of precipitated barium sulphate, 0.1 to 0.4 part of filling agent, and 12 to 28 parts of elastic emulsion; wherein the wetting agent has an emulsifying function, and the elastic emulsion has an adhesive effect. After the curing of the tile joint filling paste, a material with a block structure comprising soft chain segments and rigid chain segments is formed; the material has a good resilient property and displacement compensating performance, has a very good adhesive force on basic materials, has the advantages of wear resistance, vibration resistance, low temperature resistance, good elasticity, and large elongation rate, can be applied to the construction crack treatment, can provide a long-lasting filling and fixing effect, and prevents secondary contraction cracking.

The invention relates to the fields of composites and medical instruments and specifically relates to a preparation method of a transparent and colorless composite latex condom with high insulating property and high strength. The preparation method comprises the steps: connecting a panel covering transparent graphene with an electrode holder, spraying a polyvinylpyrrolidone glue solution on the panel, and then, placing the panel into an insulated vessel holding water; electrifying for electrolysis, meanwhile, shattering and stripping graphene adsorbed by polyvinylpyrrolidone under the assistance of ultrasound, and finally, uniformly dispersing graphene into water; and concentrating the solution to form composite gel, then, circulating the former processes, finally, stirring and dispersingthe composite gel into vulcanized natural latex to obtain a composite latex emulsion, and then, preparing a pure transparent graphene composite condom. The graphene composite condom prepared by usingthe preparation method is pure in color, transparent and good in color adjustability and has the advantages of high insulating property and high strength.

The invention relates to a moisture-absorption-resistant water-based polyurethane dispersion, and a preparation method and application thereof, and belongs to the field of water-based polyurethane coating resin. The preparation method comprises the following steps: reacting polyether glycol, polyether polyol with the functionality of more than or equal to 3, side-chain alkane glycol and polyisocyanate together to obtain a prepolymer, then adding a chain extender, and continuously reacting to obtain the moisture-absorption-resistant water-based polyurethane coating resin dispersion. A water-based polyurethane coating resin is prepared by utilizing the moisture-absorption-resistant water-based polyurethane coating resin dispersion. The finally prepared waterborne polyurethane coating resin has the characteristics of being capable of blocking water vapor, free of fogging when meeting moisture and the like.

The invention discloses a high-oxygen-barrier film and a preparation method and application thereof. The high-oxygen-barrier film successively comprises an outer layer A, a bonding layer B2, an oxygenabsorption layer C1, a bonding layer B2, a barrier layer D, a bonding layer B3, an oxygen absorption layer C2 and a heat sealing layer E from outside to inside; and the barrier layer D comprises a middle layer D2 and transition layers D1 and D3 on the two sides of the middle layer D2. Each of the oxygen absorption layers C1 and C2 consists of an oxygen absorption agent and polyolefin resin, and the main components of each oxygen absorption agent are ethyl methacrylate and/or cyclohexene acrylate terpolymer. According to the high-oxygen-barrier film, each oxygen absorption layer consisting ofthe oxygen absorption agent and the polyolefin resin is introduced, wherein each oxygen absorption agent can produce free radicals after being illuminated by ultraviolet before packaging, the free radicals are combined to oxygen to achieve an oxygen absorption effect, oxygen can be stopped effectively, the oxygen stopping property of the film is greatly improved, moreover, the film system can stably exist in air before illumination of the ultraviolet, and after triggering, degradation by-products cannot be generated.

The invention discloses a micro-aperture medical packing paper surface drying device and slurry proportion and beating process. Coniferous wood and hardwood are used as main raw materials, wherein a fiber ratio of the coniferous wood to the hardwood is that the coniferous wood is 75%-85% and the hardwood is 15%-25%, the coniferous wood and the hardwood are separately beaten, microstructures of paper, raw materials and the like are timely analyzed through an imported scanning electron microscope, and then surface glue applying and drying operation are carried out. According to the invention, novel technical means are used to carry out in-depth analysis and research on products and raw materials in a research process, an advanced imported scanning electron microscope is introduced, fiber type selection is studied by means of determining the amount of porosity of paper through microstructure analysis of the paper, the raw materials and the like, and the consumption of hardwood fibers is increased by 6%-10%, thereby improving the uniformity of the pore size distribution of dialysis paper. The cumulative distribution of pore size range from 0.23 [mu]m to 3.2 [mu]m is more than 90%, andthe maximum pore size is less than 5.0 [mu]m, which can effectively block the penetration of bacteria.

The invention discloses a poaching-resistant powder coating composition. The poaching-resistant powder coating composition at least comprises thermosetting resin, a curing agent for crosslinking and curing of the thermosetting resin, and pigments and fillers, wherein the pigments and fillers comprise aluminum hydroxide and a hydrophobic coated pigment. According to the invention, the aluminum hydroxide filler and the hydrophobic coated pigment have a synergistic effect in a cured coating film; the raw materials have excellent hydrophobicity; and meanwhile, the compactness of a coating film can be remarkably improved, water vapor can be effectively prevented from penetrating through the coating, and the poaching resistance of the coating film is effectively improved.

The invention discloses a ceramic-filled epoxy zinc-rich anticorrosive coating material. The coating material comprises, by weight, 10-20 parts of modified epoxy resin, 35-50 parts of zinc powder, 5-10 parts of a complexing agent, 15-30 parts of ZnO conductive ceramic powder, 1-2 parts of an assistant, 1.5-3 parts of a modified amine curing agent and 5-10 parts of an organic solvent; and the modified epoxy resin is phthalic acid-modified epoxy resin. The invention also provides a preparation method of the material. The preparation method can greatly reduce the use amount of the zinc powder inthe coating and significantly improve the mechanical strength, adhesion, corrosion resistance and weather resistance of a coating film, and also has the advantages of simplicity in preparation, low cost, and easiness in industrial mass production.