53results about How to "Coating method is simple" patented technology

The invention relates to a titanium niobate composite material, a preparation method thereof, and a cathode and a battery containing the composite material. The titanium niobate composite material is represented as BxCyNz-LaTibMcNbdOe, wherein BxCyNz represents a compound containing boron carbon or carbon nitrogen or boron carbon nitrogen; L represents Li or Na, preferably Li; M is one element selected from Al, B, V, Cr, Mn, Fe, Co, Ni, Ce, Y, Zr, Mo, La, Ta, N and P; x, y, z, a, b, c, d and e represent mole percentages, x is no less than 0 and less than 1, y is larger than 0 and less than 1, z is no less than 0 and less than 1, a is no less than 0 and no larger than 0.2, b is larger than 0.8 and no larger than 1.1, c is no less than 0 and less than 0.2, d is larger than 1.95 and no larger than 2.1, e is no less than 6.8 and no larger than 7, and x and y are not 0 at the same time. The composite material disclosed herein and used as a cathode material of a lithium ion battery has the advantages of high coulombic efficiency, high ionic and electric conductance, good cycling performance of high-rate charge and discharge, high safety, no pollution, and low price.

The invention discloses a super dewatering film preparing method on the Al surface, which comprises the following steps: formulating the organic coating film with the electrolysis solution by selecting 0.5-5mmol/l water-soluble triazoxide organic compound salt and 0.25-5mol/l basic supporting electrolysis salt; regarding the roughening and cleaning aluminium surface as the working electrode and putting in the electrolysis solution; proceeding with the organic coating with tri electrode method (the coating temperature is 5-25Deg. C, the current density is 0.5-10A/m2, the coating time is 30s-50min); preparing a layer dense super dewatering film with super dewatering function characteristic and binding the organic film with aluminium basis surface tightly by the conjugated linkage. The invention can be used for the large-area super dewatering modifying property on the aluminum surface, in particular to the specially-shaped and complicated parts. The method is provided with the simple operation, the easy industrialization characteristic.

The invention relates to a nano-material and a method for preparing a coating, particularly a method for preparing a titanium dioxide composite coating mainly by a hydrothermal method and a sol-gel method so as to form a superhydrophobic film. The superhydrophobic film prepared has the characteristics of a large static water contact angle, a small rolling angle and a wide application matrix range,the static water contact angle on a glass substrate can reach 162 degrees, and the rolling angle is less than 1 degree. This coating has a self-cleaning effect like a lotus leaf structure, and in addition, the film can provide good anti-icing and anti-corrosion effects.

The invention relates to the technical field of materials of electrodes of a lithium ion battery, and especially relates to a composite material Li3V2(PO4)3/Li4Ti5O12 and a preparation method thereof. According to the invention, Li4Ti5O12 is coated on monoclinic Li3V2(PO4)3 with mechanical ball milling combined with heat treatment, wherein spinel type Li4Ti5O12 has a stabile structure, a coating Li4Ti5O12 not only can provide a mechanical support for monoclinic Li3V2(PO4)3, but also can be used as a protective layer to reduce the contact area of an active substance and an electrolyte, thereby reducing the generation of side reactions and improving electrochemial performances of Li3V2(PO4)3 at a high potential. In comparison with monoclinic Li3V2(PO4)3 which is not coated with Li4Ti5O12, the material prepared in the present invention exhibits excellent multiplying power and cycle performances, and a coating process in the invention is simple.

The invention belongs to the technical field of materials, and in particular relates to a method for preparing microcapsule coated ammonium polyphosphate (MCAPP). The method comprises the following steps of: uniformly dispersing APP containing water or not containing water in an organic solvent by utilizing a mixed dispersing agent; adding diisocyanate substances and a catalyst, and performing polymerization with hydroxy on the dispersing agent; and washing with water and the organic solvent, filtering, and drying to obtain the microcapsulated APP. Compared with APP, the microcapsule coated ammonium polyphosphate has the advantages of obviously improving water resistance and obviously improving a moisture absorption agglomeration phenomenon; and the MCAPP has good compatibility with a polymer substrate and good dispersability in the polymer substrate, so the excellent flame retardancy of the APP is fully achieved. The method successfully solves the problem that the flame retardancy of an inorganic flame retardant in the polymer substrate cannot be last, and realizes the expansion of the field of polymer flame retardancy modification.

The invention discloses a urea formaldehyde photochromic microcapsule and a preparation method thereof. The preparation method comprises the following steps: first step, polymerizing urea and formaldehyde to generate a urea formaldehyde prepolymer; and second step, by in-situ polymerization, polymerizing the prepolymer on a water-oil interface to wrap a photochromic compound to form the urea formaldehyde photochromic microcapsule. By the in-situ polymerization, a photochromic compound is used as a core material, and urea formaldehyde resin is used as a wall material to prepare the urea formaldehyde photochromic microcapsule. The method is simple to operate, the chemical resistance of the photochromic material can be improved remarkably, the color performance is improved, the color changinglife is prolonged, the reversible color changing times are increased, and the urea formaldehyde photochromic microcapsule can be used for anti-fake, military camouflage, photoelectric information storage materials, intelligent textiles and other industries.

The invention provides an antiviral water-based matrix emulsion composition and an antiviral coating containing the same. The emulsion composition is composed of an inorganic metal nanocomposite dispersion liquid with photocatalytic antiviral activity, a water-based high-molecular polymer emulsion containing a high-content quaternary phosphonium salt unit, and an optional polyvinyl alcohol auxiliary agent. The water-based matrix emulsion or the coating thereof can be used for surface coating treatment of textile articles, plastic products, glass products, leather, wooden products and other objects, so that the virus activity on the surfaces of the objects is reduced or inactivated in a short time, and the effects of inhibiting viruses and blocking propagation are achieved.

The invention relates to a trehalose modified polyvinyl alcohol anti-fog and anti-frost coating and a preparation method thereof. The coating is prepared from polyvinyl alcohol-grafted-trehalose, low polyethylene glycol dimethacrylate, benzoin dimethyl ether and deionized water; the materials are uniformly mixed and coated on a transparent glass sheet, and the mixture is irradiated and cured by ultraviolet light to form the hydrophilic graft polymer semi-interpenetrating network coating. According to the prepared anti-fog and anti-frost coating, the light transmittance can be kept at 89-90% in the anti-fog process, the anti-frost time can be prolonged by 9-31 min, and the light transmittance value of the glass sheet coated with the coating on the two sides at the wave band of 400-800 nm is calculated by using a visible spectrophotometer. Good anti-fog and anti-frost performance is realized. The preparation method is simple and convenient and mild in reaction, and has great application potential in the field of fog and frost prevention.

The invention relates to the biomedical technical field, and discloses a process for a high-temperature-resistant enteric coating for micro-dropping pills. The high-temperature-resistant enteric coating comprises the following components in parts by weight: 50-55 parts of a methacrylic acid copolymer, 10-15 parts of hydroxypropyl methyl cellulose succinate, 3-7 parts of a silicone elastomer, 1-5 parts of triethyl citrate and 3-5 parts of nanosilicon dioxide. The high-temperature-resistant enteric coating has good stability and heat resistance in a gastric acid environment and high drug release efficiency in an intestinal fluid environment. The process for the high-temperature-resistant enteric coating for the micro-dropping pills is convenient to operate, and the prepared dropping pill preparation has smooth surface, bacterial resistance and no adhesion and is convenient to store and transport.

The invention discloses a method for plating a thin film on an inner wall of a slender pipeline, belonging to the technical field of vacuum film plating. The method comprises the steps of: putting a pipeline to be plated with a film in a reaction chamber, alternatively introducing a gaseous phase precursor to a reactor in a pulse form, wherein the first precursor reaches to the inside of the pipeline and is chemically adsorbed on the inner wall of the pipeline to form a single adsorption layer; introducing a second precursor to react with the first precursor so as to generate a thin film with a single atom layer on the inner wall of the pipeline; cleaning the reactor through inert gas between every two precursor pulses, and repeating the adsorption and reaction processes to generate the thin film layer by layer. The method is used for plating the thin film on the inner wall of the slender pipeline in a gas adsorption and reaction combination manner to solve the problem that the thin film cannot be plated on the inner wall of the slender pipeline in a vacuum film plating method currently; and the method can be used for plating such thin film materials as metal, oxide, nitride, sulfide and fluoride, and the like so as to meet different demands.

An antibacterial anti-glare glass includes glass and an antibacterial anti-glare layer coating the surface of the glass. The antibacterial anti-glare layer includes an anti-glare material comprising 1-2 mass% of nano TiO2. In the antibacterial anti-glare glass, the glass is coated with the antibacterial anti-glare layer formed by the anti-glare material comprising nano TiO2, wherein the TiO2 is harmless to human body and can be activated to perform a reaction under a weak ultraviolet light, thus killing bacteria. The glass has effects of sterilization, antifouling, deodorization and self-cleaning; meanwhile, the antibacterial anti-glare glass has excellent anti-glare effect. The invention also provides a preparation method for the antibacterial anti-glare glass by the steps of: bombardingsurface of the glass by plasma to activate the surface, and spray-coating the activated surface of the glass with the antibacterial anti-glare material; then curing the coating to form the antibacterial anti-glare glass. The preparation method is simple in operation, is high in yield and is environment-friendly.

The invention relates to a method for preparing a nano porous coating. The method comprises the following steps: mixing and stirring micron-order calcium carbonate particles, nano-grade silicon dioxide particles, polydimethylsiloxane and ethyl acetate so as to obtain an emulsion for later use; soaking a substrate into the emulsion, taking out the substrate after 10-20 minutes of soaking, and performing drying, namely drying the substrate with the coating for 50-80 minutes at 120-150 DEG C; and soaking the dried sample into diluted hydrochloric acid for 5-10 minutes, washing the dried sample with deionized water, and performing drying for 0.5-1.5 hours at 120-160 DEG C, so as to obtain an anti-icing self-repaired coating. A double-rough composite coating of a lotus leaf structure is prepared by mainly using a physical mixing and chemical corrosion methods, and the coating has good super-hydrophobicity under a low temperature condition, and thus has an anti-icing capability. The super-hydrophobicity coating prepared by using the method not only has good super-hydrophobicity and anti-icing capabilities, but also has a self repairing capability and acid-alkali resistance. The coating is low in preparation method cost, convenient to operate and wide in application substrate.

The invention relates to an isatis root seed coating agent as well as a coating method and application thereof. The isatis root seed coating agent is prepared from the following raw material components in percentage by mass: 0.28 to 0.56 percent of ipconazole, 0.23 to 0.45 percent of metalaxyl, 3.6 percent of thiamethoxam, 2.0 percent of pesticide emulsifier 700, 0.2 percent of xanthan gum, 0.2 percent of sodium carboxymethyl cellulose, 4 percent of ethylene glycol and the balance of purified water. The coating method comprises the steps of S1, preparing an isatis root seed coating agent; and S2, uniformly stirring the isatis root seed coating agent and the isatis root seeds, and airing to complete isatis root seed coating. The isatis root seed coating agent can be used for solving pathogenic bacteria carried by isatis root seeds, diseases and insect pests in the seedling stage and the like, and meanwhile, the root biomass of isatis root is increased, so that the germination rate of the seeds and the quality of medicinal materials are improved.

The invention relates to a nanometer coating material, and provides a preparation method of an aluminum-based power transmission line with an anti-icing coating layer. The anti-icing coating layer prepared by a hydrolysis method has a static water contact angle greater than 150 degrees; after the anti-icing coating layer is applied to an aluminum sheet, the icing time can be obviously delayed, andthe icing area can be reduced; when the common aluminum sheet is completely covered with ice after 10 h, the icing area of the coating layer is only 60%; after being abraded, the coating layer stillhas certain anti-icing property; after the anti-icing coating layer is applied to the aluminum wire, the ice removal ability is obviously reduced.

The invention relates to a convenient and cheap universal cladding technology and particularly relates to a convenient and cheap cladding technology using phenols and derivatives thereof as well as common amino acid. According to the cladding technology, a polymer which is formed by phenols and derivatives thereof as well as common amino acid in a solution plays a good role in good adhesion effect, through simple immersing and stirring, uniform cladding layers are formed on the surfaces of the different substrates such as alloy, inorganic materials and organic polymers.