1206results about How to "Fast film formation" patented technology

The invention discloses a kind of new industry dope. It comprises such materials as 95 - 105 weight shares of Component A, and 1 - 3 weight shares of Component B; thereinto, Component A is made from following weight percents of materials: cementing agent 30-60%, pigment 12 - 30%, filling agent 10 - 30%, auxiliary agent 0.1 - 5%, compound nanometer dispersing agent 5 - 15% and solvent 10 - 25%; Component B is comprised of catalyzed membrane forming agent - nanometer Sb2O3 and mixed organic solvent carriers. The invention firstly brings nanometer Sb2O3 into high temperature heat preservation dope as catalyzer in dope membrane forming process. The dope of the invention has following advantages: it has high temperature heat preservation and heavy anticorrosion performances, and the coat has good acid resistance, alkali resistance, salt mist resistance, oil resistance, chemical reagent resistance, waiting resistance and ultraviolet resistance; it has excellent fire protection and waterproof performance; the clinging strength of smearing membrane is good, membrane forming speed is fast, and performance is stable.

The invention discloses an electrolyte additive and an application thereof in a lithium ion battery. The electrolyte additive comprises a polynitrile-based compound and a compound comprising a sulfur bond and an oxygen bond. When the electrolyte additive is applied to the lithium ion battery, good cycle life, good low-temperature discharging property and good high-temperature storage property of the lithium ion battery under the high voltage still can be maintained.

The invention discloses a preparation method of chitosan-polyurethane ionic compound elastomeric material, which comprises the following steps: polyisocyanates reacts with polymer polylol and then reacts with diol or diamine, organic solvent and ionization reagent are added in the reactants to react with water for generating anionic waterborne polyurethane and further performs the ionic recombination reaction with cationic chitosan water solution to obtain the microemulsion or latex of chitosan-polyurethane ion composite, and finally the microemulsion or latex of chitosan-polyurethane ion composite is dried and solidified to obtain the chitosan-polyurethane ionic compoundelastomeric material. The chitosan-polyurethane ionic compoundelastomeric material has the advantages of good mechanical property, easy processing, good oil-water resistance property, good cohesive property with parent metal, controllable performance, good biocompatibility, biodegradable property, high biological activity, good blood contact property, good bacteriostatic property, good antibacterial property, and the like, can be applied in fields of mechanical industry, building industry, sport, medical treatment, and the like, and especially has wider purpose in aspects of life science research, medical materials and medical appliances.

The invention discloses a silane modified polyurethane glass primer and a preparation method thereof. The glass primer is prepared from the following raw materials by weight: 20 to 60 parts of silane-terminated polyurethane perpolymer, 30 to 65 parts of a solvent, 1 to 3 parts of a water-removing additive, 2 to 10 parts of carbon black, 1 to 2 parts of an anti-settling agent, 2 to 5 parts of a cross-linking promoter and 0.05 to 0.2 part of a catalyst A, wherein, raw materials for the silane-terminated polyurethane perpolymer comprise, by weight, 15 to 25 parts of polyether polyol, 12 to 24 parts of diisocyanate, 0.01 to 0.05 part of dibutyltin dilaurate or stannous octoate, 30 to 60 parts of ethyl acetate and 12 to 22 parts of an end-capping reagent. According to the invention, disadvantages of the prior art are overcome; when the silane modified polyurethane glass primer is used at normal temperature for 40 min in the air, the phenomenon of obvious thickening does not appear, and a film is not formed on the surface of the glass primer; the glass primer facilitates construction and is simple to use, and when used, the glass primer is directly poured into a container and then is directly used for brush coating within 40 min.

The invention discloses a quaternary ammonium salt modified organosilicon polyurethane ocean antifouling paint, the structure is shown as the formula (1); in the formula, an organosilicon soft segment containing quaternary ammonium salt side chain is an isocyanate hard segment; the quaternary ammonium salt modified organosilicon polyurethane ocean antifouling paint is prepared by the following steps: preparing 2,4,6-tri(3- chlorine propyl group)-2,4,6- trimethyl-ring trisiloxane; preparing 1,3-bi(3-(1-methoxy group-2-hydroxy propyl group) propyl group)-tetramethyl disiloxane; preparing 1,3-bi(3-(1-methoxy group-2-hydroxy propyl group) propyl group)-tetramethyl disiloxane; preparing dihydroxy ended chloropropylated polysiloxane; preparing polysiloxane compound containing the quaternary ammonium salt and hydroxyl; mixing the compound with the isocyanate, and adding gamma-aminopropyl triethoxy silane for chain extension to obtain a prepolymer, and the prepolymer being crosslinked and condensed in air. In the invention, the double effect of low surface energy and poison killing are achieved, so as to suppress the adsorption of marine organisms and kill bacteria adsorbed on the surface of a ship body through the quaternary ammonium salt.

The invention discloses a kind of new industry dope. It comprises of two kinds of materials of following weight shares: Component A 95 - 105 and Component B 2 - 8 shares; thereinto, Component A is made from such materials as membrane forming object, pigment, filling agent, auxiliary agent, compound nanometer dispersing agent and solvent; Component B is made from nanometer Sb2O3 and mixed organic solvent carriers. The dope of the invention has following advantages: at room temperature, it has prominent heavy anticorrosion performance, and has excellent performances of acid resistance, alkali resistance, salt mist resistance, oil resistance, chemical reagent resistance, waiting resistance and ultraviolet resistance; it also has excellent fire protection and waterproof performance; the clinging strength of smearing membrane is good, membrane forming speed is fast, and performance is stable.

The invention discloses a preparation method of a graphene composite anticorrosive coating. The preparation method comprises the following steps: (1) preparing an organic coating solution with a plurality of hydroxyls or amino groups; (2) preparing an oxidized graphene or modified graphene solution; (3) performing metal surface pretreatment; (4) performing electrodeposition to form an organic coating film; and (5) preparing the graphene composite anticorrosive coating. The method is simple and feasible in technology, the film forming speed is obviously improved, and the prepared coating is more compact and uniform; compared with a plain sample, the low-frequency impedance modulus value of the prepared composite coating is improved to 10<6.2> from 10<3.5> by performing electrochemical testing in 3.5wt% NaCl neutral electrolyte solution, the self-corrosion current is also remarkably reduced, and longer effective prevention effect on a matrix can be achieved. Compared with the conventional dip-coating method, the preparation method has lower requirement on the flatness of a metal surface, and controllable preparation can be effectively realized; the prepared coating is non-toxic and environment-friendly, controllable in thickness, and more compact and uniform, and more durable and stable protection effect on the metal matrix can be achieved.

The invention discloses organosilicon type marine antifouling paint binder. The structure of the paint binder is shown in the formula (1), wherein the paint binder is an organosilicon-polyurethane compound with bactericide side chain and R represents CH2CH3. The preparation method comprises the following preparation steps: 1) using chloropropylmethyldimethoxysilane and dimethyldimethoxysilicane to react and obtain chloropropyl-containing polysiloxane; 2) using chloropropyl-containing polysiloxane, tertiary amine and hydroxyl-containing tertiary amine to perform reflux reaction and generate polysiloxane with quaternary ammonium salt and hydroxyl; and 3) mixing isocyanate, butyltin dilaurate and polysiloxane with quaternary ammonium salt and hydroxyl with solvent, adding gamma-aminopropyltriethoxysilane to extend the chain and obtain prepolymer with the crosslinked group -Si(OCH2CH3), and using the prepolymer to perform crosslinking and condensation in the air and obtain the finished product. The organosilicon type binder has low surface energy performance and very good hydrophobicity; and the molecular chain has environmentally-friendly bactericide, thus the binder has very good bactericidal effect and marine antifouling effect.

The invention provides an oxidized graphene film, a graphene film, a preparation method and application thereof. The preparation method of the oxidized graphene film comprises: 1) preparing an aqueous solution or organic solvent solution of graphite oxide from graphite by a conventional method; 2) adding an organic solvent or water into the aqueous solution or organic solvent solution of graphite oxide, conducting a first ultrasonic treatment and a first centrifugal treatment, taking the solid, then adding a mixed solvent consisting of water and the organic solvent into the solid, carrying out a second ultrasonic treatment and a second centrifugal treatment, and taking the supernatant, i.e. an oxidized graphene solution; and 3) employing a Langmuir-Blodgett method to add the oxidized graphene solution dropwisely on a water surface so as to form the oxidized graphene film on a water-air interface, and then transferring the oxidized graphene film to a substrate.

A method for electrophoretic deposition preparation of the carbon nanotube film belongs to the field of the nano materials technology. The preparing method comprises the following steps: purification treatment and face finish for the carbon nanotube, the formation of the carbon nanotube stable suspension, electrophoretic deposition for the carbon nanotube film, film drying, and second electrophoretic deposition. The invention has the advantages of simple production equipment, rapid film forming speed, controllable film thickness, and unlimited substrate shape.

The invention provides a high-performance aqueous asphalt-based epoxy resin waterproof material composition and a preparation process thereof. The composition comprises 45 to 55% of emulsified asphalt, 25 to 35% of cationic SBR latex, 10 to 20% of epoxy resin emulsion, 2 to 8% of epoxy resin curing agent emulsion and 0.05 to 0.15% of an antifoaming agent. A waterproof material provided in the invention has the following advantages: (1) the waterproof material has excellent resistance to high and low temperature and excellent toughness, and the material does not flow at a high temperature more than 140 DEG C, is not crisp at a low temperature of -20 DEG C and has great adhesion stress; (2) the waterproof material is environment friendly, the preparation process is simple, and a system is stable; (3) construction performance is good, and surface film formation is fast.

The invention relates to a quick preparation method for a graphene oxide film, which comprises the following steps: taking crystalline flake graphite powder as a raw material, taking a piece of plain glass as a film-forming carrier, taking sulfuric acid, sodium nitrate, potassium permanganate and hydrogen peroxide as materials used in a preparation process, taking deionized water as a solvent and taking nitrogen as a protection gas; firstly, preparing a graphene oxide solution in a four-hole boiling flask and using a salpeter solution to flocculate the graphene oxide solution; and then forming a film on the plain glass; and vacuum-drying the film, thereby acquiring the graphene oxide film. The graphene oxide film is 1-2 mu m in thickness and has high strength and excellent toughness as well as excellent breaking strength resistance. The quick preparation method has the advantages that the process flow is short, the speed is high, the operation is simple and the mass production can be realized. The prepared film can be applied to carriers of paper battery and fuel battery catalysts. The quick preparation method is an ideal method for quickly preparing the graphene oxide film.

The invention relates to a solid-liquid interface self-assembly preparation method for a graphene oxide film, which comprises the following steps: adding graphite oxide into solvent to carry out ultrasound with the ultrasonic power of 20-300W; after aluminum or aluminum alloy is carried out natural oxidation layer removal preprocessing, placing the aluminum or the aluminum alloy into acid electrolyte; applying voltage to carry out first anodic oxidation processing; soaking in a mixing solution of phosphoric acid and chromic acid to remove a first anodic oxidation film so as to retain a highlysequential shell-shaped convex-concave structure on the surface of the metal aluminum; carrying out second anodic oxidation under the same condition with the first anodic oxidation; adopting a concaveposition as an initial forming locus of a hole and forming a highly sequential hole array so as to acquire a porous anodic aluminum oxide solid film attached to a matrix of the aluminum; soaking theanodic aluminum oxide film into a prepared soluble graphene oxide film solution; standing and then taking out to air or dry to obtain the graphene oxide film. The preparation method for the graphene oxide film has simple operation, high film forming speed and adjustable thickness and size of the film.

The invention discloses an inorganic nano composite anti-doodling resin and a preparation method thereof. Silane-coupling-agent-modified inorganic nanoparticles, fluorine-containing acrylate monomer, alkyl acrylate monomer and hydroxyalkyl acrylate monomer are subjected to free-radical polymerization reaction to obtain the inorganic nano composite anti-doodling resin. The film formed by the inorganic nano composite anti-doodling resin has the advantages of excellent weather resistance, excellent scratch resistance, excellent chemical corrosion resistance, excellent ultraviolet resistance, excellent wear resistance, low surface energy, excellent pollution resistance and excellent anti-doodling performance, thereby implementing the long-term anti-doodling action. The invention relates to the field of an anti-doodling resin and a preparation method thereof.

The invention discloses a before-coating metal surface treatment method. The before-coating metal surface treatment method comprises such steps as oil removal, alkali washing, acid washing, two times of water washing and phosphorization. Adopted environment-friendly alkaline cleaning liquid has the technical effects of energy conservation and environmental protection, and has an excellent cleaning effect on both black metal and nonferrous metal; adopted phosphorization liquid has such advantages as quick film formation, strong paint film bonding force, good corrosion resistance, capability of operating through brushing or spraying, simple operation and low cost; the prepared phosphorization liquid reduces phosphorization liquid sediments, and guarantees the quality of phosphorized film; and the film layers are uniform and exquisite, so that the metal surface treatment method can realize the before-coating metal surface treatment more environment-friendly and more efficiently, and has active effects on the coating process and the coating quality.

The invention discloses a treating fluid for preparing a zirconium-containing coloring passive film on the surface of an aluminum alloy and a treating method thereof. The zirconium chemical passive treating fluid comprises the following main components of: potassium fluoride, a pH value regulator, fluorozirconate and /or potassium fluozirconate; and the pH value of the treating fluid is between 2.5 and 4.5, and the film can be formed within 3 to 10 minutes. The color of the passive layer prepared by the method is black gray; the film layer is tightly combined with a substrate; and the film layer has high strength and high corrosion resistance. The method is simple in operating process, and a coating does not contain hexavalent chromium which is harmful to the environment and human bodies.

The invention discloses a method for treating the rare earth chemical conversion on the surface of aluminium alloy. The method comprises a pretreatment procedure on the surface of the aluminium alloy, the preparation of rare earth chemical conversion treating liquid and the treatment of rare earth chemical conversion. The rare earth chemical conversion treating liquid consists of 10 to 30g/L cerium salt, 1 to 5g/L oxidant solution, 0 to 5x10<-2> mol/L film forming accelerant and 1 to 3g/L film forming surface morphology truing agent; the PH value of the treating liquid is 1 to 3; the cerium salt is selected form one or two of hydrous cerium chloride and hydrous cerous nitrate; the film forming accelerant is one or a plurality of transitional metal free ions; the film forming process is completed in 5 to 15 minutes. The method for treating a coating by conversion has high combining intensity with a substrate, good protective performance and simple structure; the coating contains no hexavalent chrome or trivalent chromium which is harmful to the environment and human body.

The present invention relates to one kind of functional biological carbon fiber and its preparation process and application as biomembrane carrier. The biomembrane carrier is prepared with polyacrylonitrile carbon fiber, and through electrochemical surface treatment in 5-20 % concentration ammonium bicarbonate electrolyte to increase the surface acid oxygen containing functional groups and raise wettability, and gluing with water soluble epoxy resin in the amount 0.5-2 %. The biomembrane carrier can fix nitrobacteria, sulfate reducing bacteria and anaerobic methanogen. It may be used in treating high concentration acrylon waste water, and can eliminate sulfate, COD and ammonia nitrogen effectively. In addition, the biomembrane carrier is easy to regenerate and has no secondary pollution.

The invention discloses a surface pretreatment agent before metal coating, consisting of components with the following weight ratio: 15-19 portions of film-forming agents; 15-19 portions of coupling agents; 18-23 portions of water-soluble F-containing complex compounds; and 85-90 portions of water. A method for preparing the surface pretreatment agent before metal coating is as follows: firstly wetting the film-forming agents sufficiently with water; and then adding the coupling agents, the F-containing complex compounds or the salts thereof, and the balance of water to be evenly mixed; the method for using the surface pretreatment agent before metal coating comprises the following steps of: firstly using water to dilute the surface pretreatment agent before metal coating until the pH value thereof is 4.5-6; spraying or infiltrating the surface of the treated metal with the treatment time of 30s-90s; and by adopting the technical scheme, the film can be tightly combined with the coating on the metal surface, forms a middle layer with very strong combination force between the metal and the coating, has very good combination force both with the metal surface and the coating, and cancompletely replace the phosphating agent.

The invention provides a buffer layer for a sulfide solid-state battery. The buffer layer comprises a polymer material and ethylene carbonate, and is formed in situ on an electrode plate through a buffer layer solution; and due to the existence of a polymer, poor physical contact between an electrode and an electrolyte caused by volume deformation of a positive electrode material in a charging/discharging process can be improved. The buffer layer is existent between the positive electrode and the solid electrolyte of the solid-state battery and between the negative electrode and the solid-state electrolyte, so that the solid-solid interface impedance can be reduced; and meanwhile, good ionic conductivity of the buffer layer can improve the lithium ion transmission capacity. The sulfide composite positive electrode in the solid-state battery provided by the invention contains the polymer material, and the existence of the polymer can improve the poor physical contact between the electrode and the electrolyte caused by the volume deformation of the positive electrode material in the charging/discharging process; and meanwhile, the solid-state battery contains the buffer layer, so that the solid-state battery has low interface resistance and high ionic conductivity, and is excellent in capacity and cycling performance.