99results about How to "Has hydrophobic properties" patented technology

The invention discloses a polypyrrole/polyvinylidene fluoride nano fiber composite resistance type film gas-sensitive element and a manufacturing method thereof. The method comprises the following steps of: depositing polyvinylidene fluoride nano fiber on a ceramic matrix electrode with golden interdigital by adopting an electrostatic spinning method, and then compounding polyaniline on the polyvinylidene fluoride nano fiber by gas phase in-situ polymerization to obtain a polypyrrole/polyvinylidene fluoride nano fiber composite gas-sensitive film. The preparation process is simple, has low cost, and is particularly suitable for batch production. The prepared gas-sensitive element has the advantages of high response sensitivity on ammonia gas at room temperature, good linearity and the like, has good response repeatability on high-concentration ammonia gas, and can be widely applied to room temperature on-line detection of ammonia gas concentration in an industrial and agricultural production process and an atmospheric environment.

The invention relates to a new method for non-aqueous phase wet oxidation of hydrogen sulfide by taking iron-based ironic liquid as an oxidant. The iron-based ironic liquid is highly hydrophobic liquid which is insoluble in water, and can effectively absorb hydrogen sulfide gas and quickly and efficiently oxidize the hydrogen sulfide gas into elemental sulfur. After centrifugation separation or filtering separation is performed on the sulfur, the iron-based ironic liquid is recycled after being oxidized by air or pure oxygen. Water produced in the recycling process can be automatically separated from the hydrophobic iron-based ironic liquid to prevent dilution of the iron-based ironic liquid by the water. The pH of a reaction system is not required to be adjusted in the process of oxidizing the hydrogen sulfide by using the iron-based ironic liquid, and the acidic characteristic of the iron-based ironic liquid prevents the generation of a sulfur-containing byproduct in the reaction process. Over 90 percent hydrogen sulfide removal efficiency can be achieved and secondary pollution is not caused during the non-aqueous phase wet oxidation of the hydrogen sulfide by adjusting the circulating flow of the ironic liquid and the flow of the hydrogen sulfide gas by an absorption-oxidation-separation-regeneration combined process.

The invention relates to a preparation method of a super-hydrophobic non-iridescence structural color film, and belongs to the technical field of photonic crystal film preparation. The preparation method comprises the following steps of firstly, carrying out hydrophobic treatment on colloidal microspheres by using solvent with low surface energy; then, mixing black nano particles and a hydrophobiccolloidal microsphere emulsion according to a certain ratio, and uniformly dispersing the mixture in ethanol to form an emulsion; then, placing the emulsion on a base bottom by drip coating, spin coating, dip coating, lifting, spraying and ink jet printing; and carrying out drying at room temperature to form a non-iridescence structural color material with high saturation, high brightness and hydrophobic property. According to the method, the color saturation of the non-iridescence structural color material is remarkably improved by virtue of the absorption effect of the black nano particleson non-coherent scattered light caused by an unordered optical structure; through the hydrophobic treatment, a non-iridescence structure color film has a good hydrophobic characteristic, and the contact angle is 150 degrees or above; and the method has practical application in the fields of decoration, anti-counterfeiting, cosmetic packaging, artware, billboard and the like.

The invention provides a high-voltage composite insulator in order to solve the problems that anti-icing capacity is insufficient and scale depositing prevention capacity rapidly disappears as time goes by existing in the prior art. The insulator is formed by a ceramic substrate, a thermistor material layer and a photocatalytic nanometer material layer. The insulator has good anti-icing performance and scale depositing prevention performance. A surface coating layer adheres to a body firmly and is not prone to falling off, heat is generated from the thermistor material layer by means of weak leakage currents in the rain and snow weather, and therefore the phenomenon that the surface of the insulator is iced is reduced.

The invention discloses a preparation method of a chitosan composite preservative film. The preparation method comprises the following steps: dissolving chitosan in an acetic acid solution, heating to 50 to 65DEG C, and stirring until the chitosan is completely dissolved, so as to obtain a solution A; dispersing modified nano carbon crystal in the solution A, wherein the adding amount of the modified nano carbon crystal is 1 to 9 percent; then adding a plasticizer which accounts for 0.2 to 1 percent of the volume of the solution A, and carrying out stirring, ultrasonic dispersion, standing and ultrasonic degassing for 10 to 15 minutes to obtain a solution B; casting the solution B to form a film, standing and drying at the drying temperature of 35 to 55DEG C; then putting into 0.01 to 0.02mol/L of NaOH solution, soaking for 0.5 to 1 hour, flushing with distilled water, uncovering the film and drying in the sun to obtain the composite preservative film. The chitosan composite preservative film disclosed by the invention has relatively low water vapor permeability, so that excessive loss of water in fruits and vegetables is avoided; the chitosan composite preservative film has relatively good sterilizing function and strong antibacterial durability, i.e., an obvious sterilizing effect can be realized within one hour, and the antibacterial rates for escherichia coli and staphylococcus aureus after 48 hours still can reach 90 percent or above, so the preservation time of the fruits and the vegetables is prolonged.

The invention discloses a hydrophobic anti-corrosion ceramic coating, which uses epoxy resin and modified silicone resin as a film-forming material, and adds various fillers, auxiliary agents and solvents, including body fillers, pigments and fillers, curing agents, coloring Agent, toughener, diluent, leveling agent, epoxy coupling agent and solvent. The hydrophobic anti-corrosion ceramic coating of the present invention has stable performance, strong adhesion, excellent salt water resistance, strong acid and alkali corrosion resistance, good weather resistance, high hardness, and excellent wear resistance; and it is environmentally friendly and non-toxic (low VOC), and has Good protection, decoration and functional effects, low price of raw materials, simple preparation method, suitable for the surface of metal substrates that need to be protected under harsh corrosion environments.

The invention designs a preparation method of an antirust agent and particularly relates to a preparation method of a methyl silicate aqueous nano antirust agent. The antirust agent is prepared from the following steps: preparing a nano methyl silicate homogenate by using nano methyl silicate and a 731A dispersing agent; and mixing and dispersing the nano methyl silicate homogenate, acrylic resin, DPnB, dibutyl phthalate, a thickener, a silicon sol, propylene glycol and water 500 to prepare the methyl silicate aqueous nano antirust agent. According to the methyl silicate aqueous nano antirust agent provided by the invention, the raw material methyl silicate is an inorganic/organic composite material which is prepared from silsesquioxane which is a byproduct methyl trichlorosilane hydrolysate in production of organic silicon, so that the raw material is low in price and easily available; the antirust agent is free of toxicity and pollution, has hydrophilic and lyophobic performances and relatively strong acid and alkali resistance and is an excellent water-based antirust additive.

The invention relates to the technical field of display and discloses an organic electroluminescent device, comprising a pixel defining layer arranged on a substrate, wherein a plurality of grooves for accommodating sub-pixel units are provided in the pixel defining layer, and the pixel defining layer and the sub-pixel units are contacted viaa hydrophilic surface. As that carry functional layer isusually an organic compound contain lipophilic and hydrophobic groups such as hydrocarbon groups or aromatic groups, the carry functional layer is easy to grow in an island mode on the hydrophilic surface, i. e., the carrier functional layer forms a discontinuous thin film structure on the surface of the pixel limiting layer. Therefore, when a sub-pixel unit of a certain light emitting color is turned on, carriers applied to the sub-pixel unit do not migrate to sub-pixel units of adjacent other light emitting colors via a carrier functional layer, thereby avoiding sub-pixel units of other colors from being simultaneously lit up, and effectively solving the color deviation problem at low brightness.

The invention discloses hollow mesoporous carbon nanosphere immobilized enzyme and a preparation method thereof. The hollow mesoporous carbon nanosphere immobilized enzyme comprises enzyme and a hollow mesoporous carbon nanosphere acting as a carrier for immobilizing the enzyme, wherein for the hollow mesoporous carbon nanosphere, the particle diameter is 300-400nm, the specific surface area is 1100-1200m<2>/g, the shell thickness is 20-60nm, the cavity size is 250-350nm, and the aperture size of mesopore is 8-14nm. The preparation method comprises the following steps: (1) preparing silicon dioxide/resorcinol-formaldehyde oligomer (SiO@RF); (2) preparing silicon dioxide/carbon (SiO2@C); (3) preparing the hollow mesoporous carbon nanosphere; and (4) immobilizing the enzyme on the hollow mesoporous carbon nanosphere. The hollow mesoporous carbon nanosphere immobilized enzyme has the advantages of greatly improving the loading capacity and stability of enzyme due to the physical structureand hydrophobic surface, being beneficial to exposing the active site of enzyme, and being more beneficial to adsorbent immobilization and activity retention of enzyme compared with common adsorbingmaterials.

The invention discloses a preparation method of a bionic super-hydrophobic acrylate modified polyurethane/nano particle composite coating, and belongs to the technical field of synthesis and modification of waterborne polyurethane. The super-hydrophobic coating prepared by the invention consists of a first component namely acrylate modified polyurethane and a second component namely modified silicon dioxide nano particles, wherein the first component is acrylate modified polyurethane emulsion that is prepared by taking organic silicon polyol, polyisocyanate, acrylate, a small molecular chain extender, a catalyst, a neutralizer, an acrylate coupling agent and water as raw materials; acrylate modified polyurethane emulsion and modified silicon dioxide nano particle dispersion liquid are sprayed on a base material, and the super-hydrophobic functional coating similar to a lotus leaf micro-nano rough surface structure is constructed. The surface of the membrane has a hydrophobic micro-nanostructure through a spraying method, so that the physical hydrophobic property of the surface of the membrane is enhanced; due to the introduction of polydimethylsiloxane, hydrophobic groups migrateto the surface during drying and curing, and the hydrophobicity of a matrix material of the membrane is improved due to chemical modification. A waterborne polyurethane coating film is prepared by taking a lotus leaf structure, a rough surface is endowed while the surface energy is low, so that the waterborne polyurethane coating film has super-strong hydrophobic performance, the water contact angle can reach 156 degrees to 162 degrees, the rolling angle is 3 degrees to 5 degrees, and the wear resistance is excellent.

The invention relates to a method for preparing magnesium hydroxide utilizing magnesium sulfate as a raw material, and the method comprises the following steps of: firstly preparing a 0.1- 4 mol/L solution from calcium nitrate or calcium chloride, then slowly adding magnesium sulfate used as the raw material to the solution, then filtering to obtain filter residue and filtrate, washing the filterresidue to obtain gypsum, and introducing the filtrate into a circulation process. The method provided by the invention has the following advantages: 1) the cost is low, calcium oxide used as an alkalizer and an organic amine used as a precipitating agent can be recycled, thereby avoiding the defects of a calcium oxide method, simultaneously the amine circulation amount is low, the precipitation efficiency is high and the production raw material cost is reduced; 2) the energy consumption is low and environmental pollution caused by ammonia volatilization is avoided; and 3) the operation cost is low, the organic amine is used to precipitate magnesium hydroxide in the method, so that magnesium hydroxide adsorbs a certain amount of organic amine during generation and has hydrophobic property, the filtration speed is high and is more than 0.01 L/s.m<2> during filtering, washing is easy and the process operation cost is reduced.

The invention relates to a method for preparing magnesium hydroxide by utilizing light calcined dolomite. The method comprises the following steps: firstly, preparing magnesium nitrate or magnesium chloride into a 0.1-4 mol/L solution; adding organic amine in the solution, and evenly stirring; reacting for 0.5-2 hours at the temperature of 10 DEG C-100 DEG C, and then filtering; and washing and drying filter residue so as to obtain magnesium hydroxide, and entering filtrate into a cycle process. The method has the advantages that 1) production raw material cost is reduced; 2) energy consumption is low, and amine can be separated from the solution through a liquid separation method, thereby avoiding the ammonia distillation operation in an ammonia-soda process and simultaneously avoiding the pollution of ammonia volatilization to environment; and 3) operation cost is low, magnesium hydroxide is precipitated with organic amine so that a certain amount of organic amine is adsorbed when magnesium hydroxide is generated, thus magnesium hydroxide has the hydrophobic characteristic, the filtration speed of magnesium hydroxide is extremely high when filtration is carried out, the filtration speed is larger than 0.01 L/s.m<2>, and magnesium hydroxide is easy to wash, thus the operation cost of the process is reduced.

The invention discloses cement special for waterproof mortar. The cement is prepared from the following raw materials: clinker, gypsum, limestone, a grinding aid and a modifying component, and furtherfrom one or more active or nonactive mixed materials comprising granulated blast furnace slag, slag powder, cinerite and flyash. And other residues are allowed to be mixed in to replace active mixedmaterials. The invention also discloses a preparation method of the cement special for waterproof mortar, and the raw materials have a lot of sources; in terms of the problem that temperature of cement is high and thus difficult for being mixed with the modifying component in an existing cement production technology, a cement cooling method and a cement cooling device are combined; in the design,a secondary batching, stirring and homogenizing system is adopted, so that technological conditions for adding the modifying component and preparing various mortar are achieved; when mortar is stirred, no admixture is added, so that the homogeneous problem of a gelatinizing material system in the mortar is alleviated and various performance and construction efficiency of the mortar are improved.

The invention discloses a metal-modified superhydrophobic material and a preparation method thereof, belongs to the field of preparation of superhydrophobic materials, and aims to solve the technical problems in environmentally-friendly, energy-saving and efficient preparation of the superhydrophobic material. The preparation method comprises the following steps: S1, preparing conical nano nickel by using a polylactic acid template; S2, impregnating the conical nano nickel in a gold ion-containing gold plating solution for replacement reaction; S3, carrying out cleaning and drying; S4, then impregnating the conical nano nickel in a hexadecyl mercaptan solution for complex reaction; S5, carrying out cleaning and drying, thus obtaining the metal-modified superhydrophobic material, wherein the metal-modified superhydrophobic material is sulfydryl-carried metal gold, and hill-shaped bulges are formed on the surface of the metal-modified superhydrophobic material. The metal-modified superhydrophobic material is prepared according to the preparation method; the metal-modified superhydrophobic material is the sulfydryl-carried metal gold, and the hill-shaped bulges are formed on the surface of the metal-modified superhydrophobic material.

The invention relates to a method for preparing magnesium hydroxide from acid-dissolved magnesium ion-containing raw materials. The method comprises the following steps of 1, preparing calcium nitrate or calcium chloride into 0.1 to 4 mol/L of a solution, 2, adding slowly concentrated sulfuric acid into the solution, 3, carrying out filtration, 4, washing the filter residues obtained by the step 3 to obtain gypsum, and 5, feeding the filtrate obtained by the step 3 into a circulation system. The method has the advantages that 1, costs are low; calcium oxide is utilized as an alkalizer and organic amine is utilized as a precipitating agent for recycle so that detects of a calcium oxide method are avoided; an amine circulation volume is reduced; deposition efficiency is improved; and raw material costs are reduced; 2, energy consumption is low; and the pollution caused by ammonia volatilization is avoided; and 3, an operation cost is reduced; the method adopts organic amine to deposit magnesium hydroxide so that magnesium hydroxide can adsorb a certain amount of organic amine in magnesium hydroxide generation and thus having a hydrophobic characteristic; a filtration rate is very high and is greater than 0.01L/s*m<2>; washing is easy; and an operation cost of the method is reduced.

The invention provides a hydrophobically associating polymer and a preparation method thereof. The preparation method comprises the following steps: dissolving acrylamide monomers in water to obtain a water phase; dissolving hydrophobic monomers in an organic solvent to obtain an oil phase; mixing the water phase with the oil phase under the action of an initiator and heating the mixture to carry out polymerization reaction, thus obtaining the hydrophobically associating polymer. Compared with the prior art, the hydrophobically associating polymer has the beneficial effects that monomer units of acrylamide in the hydrophobically associating polymer can provide hydrophilic groups for the hydrophobic association complex, thus ensuring that the polymer has good water solubility; monomer units of the hydrophobic monomers can provide hydrophobic side groups for the hydrophobically associating polymer; hydrophobic association is formed among the hydrophobic side groups in water to form a spatial network structure, thus providing necessary viscoelasticity for a solution; the initiator shown in a formula (V) is an amphiphilic bifunctional initiator and can initiate homopolymerization of the water-soluble monomers and the oil-soluble monomers in respective phases, thus obtaining the hydrophobically associating polymer. The preparation method is simple and is mild in reaction conditions and higher in yield.

The invention provides a preparation method of a transparent hydrophobic abrasion-resistant diamond-like film on a transparent polymer surface. The method comprises the steps that firstly, the transparent polymer surface is subjected to plasma etching treatment; and secondly, the diamond-like film is deposited by introducing carbon source gas through a linear ion beam deposition method, and Ar gas is introduced during the deposition process of the diamond-like film, so that film deposition and gas etching are carried out simultaneously. The diamond-like film prepared through the method can maintain good abrasion resistance and transparency, has the hydrophobic characteristic, integrates the functions of abrasion resistance, transparency and hydrophobicity, and has good application prospects.

An electroalkaline salt co-produced direct-formate fuel cell (Na-DFFC) comprises a flow field arranged on a bipolar plate, a cathode and anode diffusion layer immediately adjacent to the flow field, an anode catalyst layer composed of an anion exchange resin and a non-noble metal catalyst, a cationic membrane in a form of sodium ions and a cathode catalyst layer composed of polytetrafluoroethylene (PTFE) and the non-noble metal catalyst. According to the electroalkaline salt co-produced direct-formate fuel cell, the cationic membrane in the form of sodium ions is used for replacing a traditional anionic membrane aiming at a formate fuel cell, and shortcomings of low ion conductivity and poor stability of the anionic membrane are overcome. An anode takes the anion exchange resin as a binder, so that hydroxide ions required by a reaction are transmitted to corresponding three-phase reaction sites in a more favorable condition. At the same time, the anode does not need to add additional electrolyte (such as sodium hydroxide), energy density of a system is improved, and complexity and input costs of the system are reduced. In addition, the sodium hydroxide and sodium carbonate generated in battery output power process can also be used as chemical raw materials.

The invention provides a doped perovskite solar cell. The doped perovskite solar cell comprises a substrate layer, a first charge transport layer, a passivated perovskite layer, a second charge transport layer and an electrode layer which are in contact in sequence, the passivated perovskite layer comprises a perovskite material and a self-repairing polymer; the self-repairing polymer is a polymethyl methacrylate-n-butyl acrylate copolymer. According to the perovskite solar cell, the self-repairing polymer containing the polar functional group carbonyl is added into the perovskite layer, the polymer can be coordinated with Pb < 2 + > or Sn < 2 + >, non-coordinated atoms at the grain boundary are passivated, and the function of passivating the grain boundary is achieved; meanwhile, the polymer has good self-repairing capacity, and the grain boundary strength in the polycrystalline perovskite thin film can be enhanced; in addition, the polymer has a hydrophobic property and can block water vapor invasion, so that the stability of perovskite is improved. The invention also provides a preparation method of the doped perovskite solar cell.

The invention discloses an ultraviolet photocuring water-based ink. The ink is composed of the following raw materials by mass: 15% to 20% of an ultraviolet photocuring precursor, 15% to 20% of a prepolymer, 40% to 45% of a solvent, 1% to 3% of a photoinitiator, 15% of pigment and 5% of an additive, wherein the total mass percentage of the above-mentioned components is 100%. The invention also discloses a preparation method for the above-mentioned water-based ink. According to the invention, acrylic acid and trifluorobutyric acid are used to react with a glycidyl acrylate oligomer at room temperature under the catalysis of triethanolamine so as to obtain a polyenoid funcational group oligomer of a modified (methyl) glycidyl acrylate oligomer, and the obtained polyenoid funcational group oligomer used as the ultraviolet photocuring precursor greatly saves production cost of the ultraviolet photocuring water-based ink; meanwhile, due to low surface energy of trifluorobutyrate in the ultraviolet photocuring precursor, the image area of a printing product printed by using the ultraviolet photocuring ink in the invention has the characteristics of hydrophobic property, acid and alkali resistant properties, water-washing resistance, etc.; and application scope of the ultraviolet photocuring ink is wider.

The invention discloses an integrated device for removing a CO2 gas in a gas. The integrated device comprises a device body, an air inlet pipe, a sprayer, a demister, a flow guide plate, an alcohol amine rich liquor accumulating chamber, a hollow fiber membrane module, an alcohol amine barren liquor accumulating chamber, and a circulating pipe. An air inlet hole is installed in the device body. The device body is internally provided with the air inlet pipe. An upper part of the air inlet pipe is the three-level sprayer. The demister and the flow guide plate are successively installed above thesprayer. The alcohol amine rich liquor accumulating chamber is positioned below the air inlet pipe. The hollow fiber membrane module is installed at a lower part of the alcohol amine rich liquor accumulating chamber. The alcohol amine barren liquor accumulating chamber is installed below the hollow fiber membrane module. Regenerated alcohol amine solution can be guided into the sprayer for circulating by the circulating pipe, or guided into the alcohol amine rich liquor accumulating chamber for performing secondary treatment. The device is simple, low in investment cost, and capable of continuously removing the CO2 gas in the gas so as to obtain a purified gas, and synchronously performing alcohol amine solution regenerating operation. A technological process is simplified, the cost is saved, and the operation is convenient.

The invention relates to a method for quickly preparing a porous integral material containing silicon based on a photoinduced thiol-yne polymerization reaction. The method specifically comprises the steps of mixing a di-alkynyl compound (functional monomer) containing silicon, a poly-sulfhydryl compound (functional monomer), a pore-forming agent and a photoinitiator, conducting ultrasonic dissolution on the materials, and then carrying out the photoinduced thiol-yne polymerization reaction under the illumination of an ultraviolet lamp with a certain wavelength to further prepare the hybridizedporous integral material. The preparing method has the advantages of being mild in condition, quick and the like; besides, different functional monomers can be selected or different pore-forming agent systems can be adjusted according to different application requirements, and a series of hybridized porous integral materials containing silicon with different physical and chemical features are prepared.