910 results about "Varnish" patented technology

According to the preparation method of the radiation refrigeration colored coating with the double-layer structure, absorption of ultraviolet-visible light and near-infrared wave bands is weakened and heat input is reduced by adding a fluorescent coloring agent and designing a bottom strong reflection layer, meanwhile, high-emissivity varnish is selected as a base material, and the radiation refrigeration colored coating with the double-layer structure is prepared. The capability of emitting heat outwards in a middle and far infrared radiation form of the colored paint is improved, so that efficient cooling is realized. The prepared colored paint has rich and adjustable colors and a good cooling effect, is low in cost and simple in process, and is expected to be applied to the fields of high-power electronic equipment, building heat management and the like.

A “Passive Radiative Coating” (PRC) is designed to dissipate heat generated mainly by solar radiation, intended for use in the manufacture of overhead conductors and cables. Additionally, this coating can dissipate heat produced by the conductors themselves, known as the Joule effect, providing environmental protection and significantly improving heat dissipation capacity. The PRC is composed of at least one filler, at least one binder, and at least one surfactant. In particular, the use of calcium carbonate and / or barium sulfate as fillers, and epoxy resins, alkyd varnishes, polyurethane dispersions, casting resins, silicone-based varnishes, and sodium silicate as binders are highlighted. The surfactant is used to stabilize the mixture and acts as a stabilization additive.

The invention relates to the field of vacuum paint dipping, in particular to a vacuum paint dipping device for a motor winding and a paint dipping process thereof.The paint dipping process comprises the steps that winding structure parameters of the motor winding and dynamic viscosity data of insulating paint are obtained, and paint dipping initial parameters are determined according to the winding structure parameters and the dynamic viscosity data; the motor winding is vertically placed in a dipping cylinder in the axial direction and pre-dried, the motor winding is naturally cooled after pre-drying is finished, and then vacuum exhaust is conducted on the dipping cylinder; insulating paint is injected after vacuum exhausting is finished, and pressure paint dipping is conducted according to paint dipping initial parameters; monitoring the temperature data of the motor winding in real time to determine the paint dipping leading edge advancing speed of the insulating paint, and adjusting the paint dipping pressure according to the paint dipping leading edge advancing speed; determining a penetration depth characterization value according to the temperature data to adjust the paint dipping pressure and the paint dipping duration; and after pressure paint dipping is finished, the pressure is unloaded, and paint returning, paint dripping, secondary paint returning, low-temperature drying and high-temperature curing are sequentially carried out. According to the invention, the probability of insufficient insulation paint penetration during vacuum paint dipping of the motor winding is reduced.

To provide resin composition particles of a cyclic olefin copolymer having curability.SOLUTION: Resin composition particles include: a thermosetting cyclic olefin copolymer (A) having a crosslinkable group; and a radical initiator (B), the radical initiator (B) being contained within the resin composition particles.SELECTED DRAWING: None

The invention discloses a UV varnish applied to a PVC edge band and a preparation process thereof, and relates to the technical field of paints.The UV varnish comprises, by mass, 15-35% of hydroxyl polyester acrylate, 5-10% of a curing agent, 1-5% of a curing agent, 1-5% of a curing agent, 1-5% of a curing agent, and the balance of water. 15-35% of aliphatic polyurethane resin with 3-4 functional groups; 15-25% of an active monomer; 0.2-0.5% of a wetting dispersant; 0.5-1% of a dispersant; 0.2%-0.5% of a defoaming agent; 0.1 to 0.2 percent of a flatting agent; 0.5%-0.8% of a fluorocarbon modified leveling agent; 3.5 to 5% of a photoinitiator; 0.5%-2.2% of a functional auxiliary agent; 5-15% of a matting agent; and 0.5-1% of nano aluminum oxide. According to the UV varnish, the flexibility reaches grade 1, the adhesive force reaches grade 0, the yellowing resistance E * is 1.0-1.5 (grade 1), and after a cold and hot cycle test, a paint film is free of cracks, bubbles, gloss loss and the like.

The invention discloses a tank body printing ink curing method. The method comprises the following steps that S1, a printing tank body is fixed; s2, rotating the printing tank body; s3, ink spraying: ink is sprayed through a color spray head and a gloss oil spray head which are arranged at the bottom of the printing trolley, and the ink is sprayed on the surface of the printing tank body; s4, ink curing irradiation is conducted, specifically, irradiation is controlled by a curing lamp set in a partitioned mode, and the jet printing ink on the surface of the printing tank is subjected to irradiation curing; s5, curing of the ink in the printing tank is completed, the printing trolley moves in the bus direction of the printing tank, the other surfaces of the printing tank are sprayed with the ink, the printing tank rotates, and the ink sprayed on the surfaces of the curing lamp sets is irradiated and cured until the printing ink on the surfaces of the printing tank is completely cured; according to the method, the gloss oil is sprayed by the gloss oil spray head through the partitioned irradiation of the curing lamp set, and compared with the existing integrated control irradiation of curing lamp beads, the method realizes the gloss oil curing brightness of the surface of the tank body through the partitioned irradiation design of the curing lamp set.

The invention provides corona-resistant polyamide-imide insulating paint and a preparation method and application thereof, the polyamide-imide insulating paint is prepared from the following raw materials: aromatic tricarboxylic anhydride, aromatic diisocyanate and alcoholic hydroxyl group modified silicon dioxide nanoparticles, and the three materials are matched to prepare the corona-resistant polyamide-imide insulating paint. The obtained polyamide-imide insulating paint has excellent storage stability before curing, and after curing, silicon dioxide nanoparticles can be uniformly dispersed in a formed insulating paint film and are not easy to agglomerate; and therefore, the enameled wire prepared from the polyamide-imide insulating paint has excellent corona resistance and excellent flexibility, and is suitable for being applied to a high-voltage motor.

The purpose of the present invention is to provide a method for forming a multilayer coating film which makes it possible to form a multilayer coating film having excellent metallic mottling resistance. The method for forming a multilayer coating film comprises: (1) a step for applying a first aqueous coating material (P1) on an object to be coated to form a first coating film; (2) a step for applying a second aqueous colored coating material (P2) on the first coating film to form a second colored coating film that contains a binder component (AP2) and lustrous pigment (BP2); (3) a step for applying a clear-coat coating material (P3) on the second colored coating film to form a clear-coat coating film; and (4) a step for heating a multilayer coating film that includes the first coating film, the second colored coating film, and the clear-coat coating film so as to cure the multilayer coating film all at once. The first aqueous coating material (P1) contains a compound (A) containing a hydroxyl group and an acid group and that has an acid value of from 50 to 150 mg KOH / g, a hydroxyl value of from 100 to 300 mg KOH / g, and a weight-average molecular weight of from 500 to 8000, a film-forming resin (B), and a crosslinking agent (C).

The invention relates to the technical field of electromagnetic wire insulating layers, in particular to an insulating layer for an electromagnetic wire and a preparation method thereof, and the preparation method comprises the following steps: coating an insulating improved paint on the electromagnetic wire by adopting an enameling machine, and then continuously baking the electromagnetic wire by adopting the enameling machine to complete the preparation of the insulating layer. According to the insulating layer for the electromagnetic wire, the insulating layer is coated with the insulating improved paint through the enameling machine, the insulating improved paint is prepared from the polyimide paint, the xylene solvent, the weather change resistant functional agent and the modified filler, and the raw materials are co-matched, co-assisted and mutually blended to achieve a synergistic effect; the obtained insulating improved paint optimizes the softening breakdown property, wear resistance and pollution resistance of an insulating layer in a system, the performance coordination of a product is improved, and the weather resistance and temperature change resistance stability effects of the product are remarkable.

The invention discloses a method for manufacturing a polyamide-imide high-heat-resistance enameled wire for a new energy automobile, and the method comprises the following steps: 1), carrying out the surface treatment of a conductor, and improving the surface roughness; 2) preparing insulating paint liquid; (3) coating the insulating paint liquid obtained in the step (2) on the surface of the conductor obtained in the step (1) for multiple times; and 4) carrying out sectional stretching treatment to finally obtain the polyamide-imide high-heat-resistance enameled wire. The polyamide-imide resin, the solvent, the epoxy modifier, the nano composite powder, the silane coupling agent and the dicumyl peroxide are compounded to prepare the insulating paint liquid, and the insulating paint liquid is coated on the conductor for multiple times, so that a compact layer can be formed on the conductor, and the insulating paint liquid has the advantages of high heat resistance, high thermal stability, high mechanical property and the like; the extreme requirements of the new energy automobile driving motor on high temperature resistance, high-frequency pulse voltage resistance and refrigerant corrosion resistance of the enameled wire are met, the manufacturing steps are simple, and the enameled wire is suitable for industrial popularization and application.

The invention provides colored varnish, a preparation method thereof and a preparation method of a colored workpiece. The colored varnish comprises a component A and a component B, based on 100 parts of the total mass of the component A, the component A comprises the following components: 30-35 parts of first resin, 13-20 parts of second resin, 2-3 parts of nanoscale black pigment, 1-2 parts of a dispersing aid, 3-4 parts of a leveling aid, 2-3 parts of an ultraviolet light absorber, 2-3 parts of a drying aid and 30-47 parts of a solvent, the first resin comprises acrylic resin, and the second resin comprises polyester resin; on the basis that the total mass of the component B is 100 parts, the component B comprises 60-85 parts of aliphatic isocyanate and 15-40 parts of an anhydrous diluent; the mass ratio of the component A to the component B is (2-4): 1. The colored varnish not only has the same color endowing function as colored paint, but also has good leveling property, glossiness, color saturation, tinting strength and weather resistance.

The utility model discloses a high-performance nonlinear buffer which comprises a main body, the whole main body is of a cylindrical structure, and baking varnish is fixedly arranged on the surface of one side of the main body. A buffering mechanism is arranged in the main body, and the buffering mechanism is characterized in that a first hole is formed in the main body in a penetrating mode, a circular-ring-shaped groove is formed in the surface of the main body in an embedded mode, a second hole is formed in the baking varnish in a penetrating mode, and the surface of one end of the main body is of a chamfering structure; and the surface of the main body and the baking varnish are respectively arranged at two ends of the main body. According to the high-performance nonlinear buffer, the buffer mechanism is arranged, the performance of the buffer can be improved, materials in the main body of the buffer are replaced, the materials are more resistant to high speed and high pressure, the comfort and safety of the buffer during use can be improved, the maximum impact mass of the buffer is improved, and the maximum impact mass speed of the buffer is increased; the minimum impact mass is increased, and the practicability of the buffer is improved.

A manufacturing method and a manufacturing device for manufacturing a winding field rotor in which it is possible to coat the entirety of coil surfaces with varnish, without requiring a complicated operation or action. The manufacturing method for a wound-field rotor involves supplying a varnish material through a gap between the rotor shaft and the flange part on one axial-end side to immerse the coil end part on the one axial-end side at a lower side of the rotor assembly in the varnish material, while rotating the rotor assembly whose axial direction is aligned horizontally.

The utility model relates to the technical field of filtering devices, and provides a varnish filtering device in order to overcome the defects that in the prior art, in the filtering process, the varnish flows downwards close to the dead weight of the varnish, and the filtering efficiency is still low, the varnish filtering device comprises a filtering cylinder, and a first filtering plate and a second filtering plate are detachably and fixedly installed in the filtering cylinder from top to bottom. Through the arrangement of the impact hammer and the stirring mechanism, the sliding block is driven to slide up and down in the sleeve in the rotating process of the reciprocating lead screw, so that the impact hammer is driven to intermittently impact the second filter plate, and passing of secondarily filtered varnish through the second filter plate is accelerated; meanwhile, the stirring mechanism stirs materials on the surfaces of the first filtering plate and the second filtering plate respectively, the situation that the filtering efficiency is low due to the fact that the varnish is accumulated at one position is avoided, the materials can be evenly distributed in the filtering cylinder through stirring, and the filtering efficiency of the equipment on the varnish is improved.

The invention provides a coating method of a composite coating on a slide, the slide and a using method. Wherein the composite coating comprises a water-based two-component polyurethane finish paint and a nano silicon coating varnish. The coating method of the composite coating on the slide comprises the following steps: S1, uniformly stirring water-based two-component polyurethane finish paint, and then coating the water-based two-component polyurethane finish paint on the surface of the slide; s2, before the surface of the water-based two-component polyurethane finish paint is dried, patterns are formed through roller coating by using a sponge garland roller; and S3, after roller coating is completed, standing for drying, and after it is determined that the surface of the water-based two-component polyurethane finish paint is dried, coating the water-based two-component polyurethane finish paint with nano silicon coating varnish to form a smooth surface. Wherein patterns are rolled and coated by using a sponge galling roller before the water-based two-component polyurethane finish paint is dried, so that the contact area with the nano silicon coating varnish is increased, the bonding capacity of the nano silicon coating varnish is indirectly promoted, and the bonding firmness of the composite coating is ensured. Smooth nanometer silicon coating varnish reduces frictional resistance of the surface of the slide, and entertainment is improved.

The invention belongs to the technical field of stoving varnish door plates, and discloses a preparation process of a solid wood core stoving varnish door plate. The method comprises the following steps that polygonal solid wood strips are spliced into a solid wood plate blank, then hot press molding, double-face sanding and vacuumizing are conducted, then curing and sanding are conducted after the solid wood plate blank is soaked with a wood reinforcing agent, and a pretreated solid wood plate is obtained; and coating seal primer on the pretreated solid wood board, spraying white primer and grinding, spraying a layer of white primer and grinding, spraying three layers of finish paint, and finally spraying varnish and grinding, drying, polishing and sealing edges to obtain the solid wood core stoving varnish door board. The wood reinforcing agent is prepared from the hydrophilic nano silicon dioxide aerogel powder, the modified waterborne polyurethane dispersoid, the microencapsulated ammonium polyphosphate and other raw materials, and a synergist is introduced into a varnish layer, so that the hardness, cracking resistance, deformation resistance and fire resistance of a paint film are effectively improved. Therefore, the method has a wider application prospect.

The invention discloses a high-efficiency batch color register process for automobiles, which comprises the following steps: establishing a color register spraying identification instruction and a color register spraying inspection instruction, and establishing a first color paint spraying room and a second color paint spraying room on a coating production line; spraying demand parameters are obtained, and the color register spraying identification instruction is executed to judge the spraying demand parameters; setting spraying procedures of a first colored paint spraying room and a second colored paint spraying room according to a judgment result of the spraying demand parameters by executing the chromatography spraying identification instruction; spraying color register is completed in the first colored paint spraying room or the second colored paint spraying room; and appearance detection is carried out on the automobile subjected to shielding removal according to the chromatography spraying detection instruction, and the automobile passing the appearance detection is sent to a subsequent process to be subjected to varnish spraying and baking. The production mode of the coating line can be flexibly adjusted according to the production order, meanwhile, the spraying quality of the main color paint and the color register paint of the automobile can be automatically inspected, and the production efficiency of the whole coating line is improved.

A process is disclosed for recovering soft poly(vinyl butyral) from a plasticized poly(vinyl butyral) multilayer sheet comprising stiff poly(vinyl butyral) and soft poly(vinyl butyral). The multilayer sheet. which may be scrap or recycled material. is first converted to a granulate form and then treated with plasticizer. This plasticizer treatment serves to remove the soft poly(vinyl butyral) component from the granulate. but thereby provides a varnish comprising the soft poly(vinyl butyral) mixed with excess plasticizer. This varnish is however highly viscous and thus difficult to handle or mechanically process. The present disclosure provides a solution to this handling problem by the addition of soft poly(vinyl butyral) having a lower concentration of plasticizer to the varnish. until a product is obtained having a sufficiently low concentration of plasticizer to render the product capable of mechanical processing. for example pelletizing. The resulting product can then be utilized to form soft poly(vinyl butyral) sheets, thereby improving the recyclability of scrap multilayer poly(vinyl butyral) materials.

The invention discloses 1K varnish as well as a preparation method and a spraying method thereof, relates to the technical field of automobile coating varnish, and solves the problems that the existing 1K varnish is difficult to be matched with a water-based colored paint system and is poor in performance. Comprising acrylic polyol, a thermosetting hydroxylated acrylic copolymer solution, thermosetting hydroxylated acrylic resin, polycarbonate diol, amino resin, blocked isocyanate resin, a leveling agent, a catalyst, an aging aid, a wetting dispersant and a solvent. The amino resin comprises butylated amino resin and a trifunctional melamine cross-linking agent; bYK306 and BYK358N are used as the flatting agents; the catalyst comprises an acid catalyst and a metal catalyst; the aging auxiliary agent comprises an ultraviolet light absorber 80 and a light stabilizer uv-93; the wetting dispersant is BYK-161; the solvent is prepared from butyl acetate, DBE, ethyl ethoxypropionate, ethylene glycol butyl ether acetate and n-butyl alcohol. The method is suitable for being matched with a water-based production line and is wide in applicability.

Device for treating precipitated sludge sediment from wastewater treatment, in particular wastewater from paints and varnishes and / or coating materials and / or liquid special waste, comprising chamber filter presses with filter cloths through which the precipitated sludge sediment is to be treated, wherein at least one removable precoat layer of a filtration aid in a predetermined concentration is applied to each filter cloth.

The invention discloses high-reflection microcrystalline ink for photovoltaic glass and a preparation method and a coating of the high-reflection microcrystalline ink. The high-reflection microcrystalline ink for the photovoltaic glass is prepared from the following raw materials: low-melting-point glass powder, titanium dioxide and varnish, the low-melting-point glass powder is prepared from the following raw materials in parts by mole: 3 to 10 parts of Bi2O3, 10 to 25 parts of B2O3, 20 to 40 parts of ZnO, 20 to 40 parts of SiO2, 2 to 5 parts of BaO, 10 to 20 parts of RxO and 1 to 3 parts of TiO2. The Zn2Ti3O8 nanocrystal and the Zn1. 8Ti1. 1O4 nanocrystal can be separated out only through a short-time sintering process under the condition that extra heat treatment is not needed, and light reflection can be further improved. The ink coating disclosed by the invention is good in adhesive force with the substrate and high in reflectivity, and can meet the use requirements of the photovoltaic glass back plate; meanwhile, the preparation method is simple and has a wide application prospect.

The printing method comprises the steps of: forming an image by applying a marking material (I) on the surface of a substrate (14); subjecting the image to a fixing treatment; and applying a layer (V) of an ionically stabilized varnish on the surface of the image, wherein when the image is formed, a layer of a liquid solvent (S) is formed on at least a part of the surface of the image, whereby ions move from the marking material (I) into the solvent (S) and are then absorbed into the substrate (14) together with a part of the solvent before the varnish is applied.

The application belongs to the technical field of coatings, and discloses a UV film finishing varnish with yellowing resistance and high hardness, and a preparation method and application thereof. The UV film finishing varnish comprises a hexafunctional alicyclic polyurethane acrylic resin, a difunctional linear polyurethane acrylic resin, a pure acrylic resin, an acrylic ester active diluent, a filler, an ultraviolet absorber, a non-alkaline hindered amine radical scavenger and a photoinitiator. The weight ratio of the hexafunctional alicyclic polyurethane acrylic resin, the difunctional linear polyurethane acrylic resin, the pure acrylic resin and the acrylic ester active diluent is (2.5-3.5):(1-1.5):0.5:(2.0-3.0). The preparation raw materials of the difunctional linear polyurethane acrylic resin include isocyanate, poly-1,4-butanediol and hydroxyethyl acrylate. The paint film formed by the UV film finishing varnish meets good yellowing resistance and high hardness performance, and is not prone to cracking after cold and hot cycles.

The present invention relates to an aqueous coating composition, preferably an aqueous sanding surfacer or primer-surfacer, comprising an aqueous epoxy resin dispersion (A), an aqueous amine-functional resin dispersion (B) and an aromatic carboxylic acid (C). The aqueous dispersion (B) comprises at least one specific di- and / or polyfunctional monomeric amine (A1) and at least one resin component (RC), the resin component (RC) comprising at least one specific polyfunctional organic amine (A2). The present invention also relates to a kit comprising a base varnish comprising an aqueous epoxy resin dispersion (A) and a curing component comprising an aqueous amine-functional resin dispersion (B) and an aromatic carboxylic acid (C). The present invention also relates to a method for preparing a coating on a substrate and a coated substrate obtained by the method. The cured coating formed from the composition exhibits good adhesion to the substrate under humid conditions, high intercoat adhesion and blister stability, without negatively affecting the excellent sanding properties and good stone chipping properties.

A method for manufacturing a die bonding film includes a first step of preparing a raw material varnish containing silver-containing particles manufactured by a reductive method or silver-containing particles of which the surfaces are treated with a surface treatment agent, a glutaric acid, and an organic solvent, a second step of mixing the raw material varnish to obtain an adhesive varnish, and a third step of applying the adhesive varnish to a support film, and removing the organic solvent to obtain a die bonding film. The content of the silver-containing particles is 70% by mass or more, on the basis of the total solid content of the adhesive varnish.

A method of making an object including a coating unit having antibacterial and antiviral activity includes (a) providing an untreated object; (b) spraying a primer material onto a surface of the untreated object so as to form a primer coating layer, thereby obtaining a primed object; (c) baking the primed object obtained in step (b) to dry the primer coating layer, thereby obtaining a baked object; (d) spraying a varnish material onto a surface of the baked object obtained in step (c) so as to form a varnish coating layer on the primer coating layer, thereby obtaining a varnished object; and (e) baking the varnished object obtained in step (d) to dry the varnish coating layer, thereby forming a coating unit having the primer coating layer and the varnish coating layer on the surface of the object. An object including an untreated object and a coating unit is also provided.

As a charge-transporting varnish for forming a charge-transporting thin film with excellent hole transport properties, a charge-transporting varnish is provided, comprising copper halide (I) or pseudo-copper halide (I), one of an amine selected from formulas (1) to (3), SiO2 nanoparticles, and a solvent. (where R...) 1 ~R 4 Each can independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms. L represents an alkylene group having 3 to 8 carbon atoms, and oxygen atoms may be present between the carbon atoms in the aforementioned alkylene groups. However, there must be at least 3 carbon atoms between H₂N⁻ and -OH. R 5 ~R 6 Each of these can independently represent an alkyl group having 1 to 6 carbon atoms that can be replaced by a hydroxyl group, and oxygen atoms may be present between the carbon atoms of these alkyl groups. However, R 5 and R 6 (At least one alkyl group is substituted with a hydroxyl group, or an oxygen atom is present between carbon atoms.)

A packaging film comprises an outer layer formed of a heat-scalable polymer. A polyolefin-based sealant layer laminated to an interior facing surface of the outer layer. A varnish coating layer is disposed on an exterior facing surface of the outer layer, the varnish coating layer configured to impart a tactile feel of paper to the outer layer.

The present invention provides radiation-curable hybrid ink and coating compositions with high bio renewable content, comprising large amounts of inert hard resin. The radiation hybrid ink and coating compositions have good lithographic properties, low roller swelling, and a low gloss-back effect when overprinted with a UV varnish. The ink and coating compositions are useful for lithographic wet printing.

A method for packaging sheet metal parts made from an electrical steel strip or sheet to form a laminated core is disclosed. In order to achieve advantageous process conditions, it is proposed that when the hot-melt adhesive varnish layers are pressurized in the axial direction of the stacked sheet metal parts, they are pressurized multiple times by means of a pressure pulse in that the pressure pulse is exerted through either an impingement with pulse pressure or a relief of pulse pressure.