52results about "Magnetic paints" patented technology

The invention relates to a coating formula, a heating element and a preparation method of the heating element, the coating formula comprises the following components in percentage by mass: 60 to 70 weight percent of Cu, 0.005 to 0.05 weight percent of Sn, 0.001 to 0.01 weight percent of P, 0.005 to 0.05 weight percent of Fe, 0.001 to 0.02 weight percent of Si, 0.001 to 0.05 weight percent of Ag and 30 to 40 weight percent of Zn, and the sum of the components is 100 weight percent. The electric heating device has the advantages of quick response, high energy utilization rate, uniform temperature distribution, long service life and the like, and is particularly suitable for manufacturing efficient and energy-saving electric heating appliances.

An coating composition includes a modified melamine salt and a binder. An endothermic temperature of the modified melamine salt is lower than an endothermic temperature of an unmodified melamine salt as characterized by a differential scanning calorimetry curve. A difference between the two endothermic temperatures is Δt, 5 °C ≤ Δt ≤ 100 °C. This configuration enables the electrochemical device to exhibit excellent high-temperature storage performance and mechanical safety performance.

The application relates to the technical field of aviation enamel, and provides aviation high-performance enamel and a preparation method. The enamel is composed of modified fluorocarbon resin, nano boron nitride grafted polysiloxane, zinc hexafluoroacetylacetone, zirconium phosphate silver-loaded antibacterial agent, bisphenol F type epoxy resin and cerium oxide coated graphene, wherein the modified fluorocarbon resin is a tetrafluoroethylene-perfluoroalkyl vinyl ether-maleic anhydride terpolymer. The preparation method adopts a special system, realizes dynamic stage mixing through a lifting-rotating linkage stirring mechanism, and comprises a driving motor, a transmission rod and an arc-shaped piece which are matched to enable the stirring rod to synchronously perform lifting and rotating movement; the stirring direction is controlled to be reversed through the engagement of a special-shaped groove and the driving rod, and a pulse type reduction process of the silver-loaded antibacterial agent is combined. The aviation high-performance enamel has obvious improvement in salt mist resistance, adhesion, antibacterial rate and thermal decomposition performance.

The invention discloses a high-weather-resistance steel pipe for a photovoltaic support and a preparation process of the high-weather-resistance steel pipe, and relates to the technical field of steel pipes. According to the scheme, chemical components of a pipe blank are controlled to comprise, by mass, 0.08%-0.10% of C, 0.50%-0.60% of Mn, 0.35%-0.38% of Si, 0.02%-0.03% of Al, 0.2%-0.25% of Cu, 0.5%-0.65% of Cr, 0.05%-0.08% of Ti, 0.05%-0.15% of Ni, 0.1%-0.15% of Mo, smaller than or equal to 0.006% of S, smaller than or equal to 0.015% of P and the balance Fe and inevitable impurities, a steel pipe base body with excellent mechanical performance is prepared by adjusting the using amount of the elements such as Mn, Si and Al, the machining performance of the steel pipe base body is good, the weather resistance is improved, and the steel pipe base body can be widely applied to preparation of outdoor photovoltaic supports.

The invention relates of UV-Vis radiation curable coating compositions comprising magnetic or magnetizable pigment particles and methods for producing optical effect layers (OELs) comprising magnetically oriented magnetic or magnetizable pigment particles and the use of said OELs as anti-counterfeit means on security documents or security articles as well as decorative purposes. The UV-Vis radiation curable coating compositions comprises one or more (meth)acrylate monomers, one or more cyclic ether compounds, one or more vinyl ether compounds, one or more photoinitiators, one or more thermoplastic polymers and non-spherical magnetic or magnetisable pigment particles.

The present invention relates to an ink composition for printing highly conductive tracks for electronic applications, in which the conductive particles can be recovered by an environmentally friendly extraction process and reused in additional conductive ink compositions without further processing. Also provided are substrates containing printed current tracks formed from such compositions; substrates containing surface-mount electronic components adhered to the substrate by contact with an adhesive composition formed from such ink compositions; and substrates containing conductive coatings formed from such ink compositions, e.g., for use in induction sealing and / or to provide antibacterial coatings. Methods for forming such printed tracks, coated substrates, and / or methods for adhering surface-mount electronic components to substrates are also provided.

The invention relates to a magnetic paint composition comprising a first magnetic material and a second magnetic material, wherein the first and second magnetic materials are present in the magnetic paint composition in a mixed form. The first magnetic material has a first coercive field strength, and the second magnetic material has a second coercive field strength that differs from the first coercive field strength. The first and second magnetic materials are each low-coercive, or the first and second magnetic materials are each high-coercive. The invention further relates to a security element (10) comprising the magnetic paint composition and a security document (1) comprising the security element (10).

The invention belongs to the field of coatings, and particularly relates to a magnetic powder coating and a preparation method and application thereof, the magnetic powder coating comprises the following components by mass: 30-80 parts of soft magnetic powder, 16-69 parts of an adhesive, 0-20 parts of a filler, and 1-10 parts of an auxiliary agent; the adhesive comprises an organic adhesive and an inorganic adhesive; the mass ratio of the organic adhesive to the inorganic adhesive is 1: (4-20). The magnetic powder coating disclosed by the invention has excellent magnetic performance, has relatively good storage stability at high and low temperatures, and does not have the problems of deterioration and the like after three times of high and low temperature circulation; a paint film obtained through construction of the magnetic powder coating is smooth in surface, free of cracks, free of blistering, cracking, obvious powder falling and the like after being soaked in water for 48 h and excellent in water resistance and bonding performance.

The invention discloses a salvinia natans bionic coating based on a reusable thermosensitive softening template and deep pinning and a preparation method of the salvinia natans bionic coating. The coating is prepared from epoxy resin, ferroferric oxide nano particles, ferroferric oxide micro particles, ferroferric oxide particles modified by 3-aminopropyl triethoxy silane, corn starch, polyvinylpyrrolidone, octadecylamine, perfluorooctyltriethoxy silane and deionized water, and the ferroferric oxide particles are prepared from epoxy resin, ferroferric oxide nano particles, ferroferric oxide micro particles, 3-aminopropyl triethoxy silane modified ferroferric oxide particles, corn starch, polyvinylpyrrolidone, octadecylamine, perfluorooctyltriethoxy silane and deionized water. Preparing magnetic slurry from epoxy resin, a solvent and ferroferric oxide particles, and performing staged magnetic field curing; preparing a thermosensitive template with modified ferroferric oxide as an inner core and corn starch as a shell, and embedding the micro-bulge tips under thermosensitive and magnetic field conditions; and carrying out hydrophobization treatment under the protection of the template, and finally heating and ultrasonically recovering the template. The cost is reduced through a reusable template, the wettability gradient is kept stable through deep pinning, ordered distribution of particles is achieved through layered magnetic field regulation and control, the gas film coverage rate and stability are improved, and the method is suitable for ships, ocean engineering and antifouling protection.

The invention provides a pavement marking material capable of enhancing perception, and relates to the technical field of road traffic marking. The pavement marking material capable of enhancing perception comprises 20-30% of C5 petroleum resin, 10-15% of hydrogenated rosin, 3-7% of composite wax, 45-60% of a magnetic composite material, 2-5% of a pigment filler, 0-10% of a filler and 0.5-2% of an antioxidant. The magnetic composite material comprises anisotropic neodymium iron boron magnetic powder and a soft magnetic material. A magnetic material is combined with the road marking, so that the road marking has magnetism, and after a vehicle is loaded with matched magnetic sensing equipment, the vehicle can stably and continuously recognize the road marking under any weather condition and road environment, and the lane keeping function of the vehicle is assisted.

To provide a semi-hard magnetic white powder having properties suitable for use as a security pigment, such as a magnetic powder contained in magnetic ink used in MICR.SOLUTION: Provided is a white powder having a titanium oxide film and a silver metal film disposed, in this order, on the surface of base particles formed from an alnico alloy that is a semi-hard magnet.SELECTED DRAWING: Figure 1

The invention relates to an anti-counterfeiting material and a preparation method thereof, in particular to a pre-coated ribbon with a magnetic effect and a preparation method and a printing method of the pre-coated ribbon. In order to overcome the defects that in the prior art, magnetic printing equipment is difficult to install and is difficult to flexibly adapt to different printing processes, the pre-coated ribbon with the magnetic effect comprises a base film and a plurality of coatings which are sequentially arranged on the base film, the multiple coatings comprise a bottom coating, a release layer, a magnetic coating, a first reinforcing coating and a back adhesive layer which are sequentially arranged from the position close to the base film, the bottom coating is used for improving the surface adhesive force of the base film, the release layer has the release and trimming effects, the magnetic coating is used for expressing the magnetic effect, and the first reinforcing coating is used for improving the surface adhesive force of the base film. The first reinforcing coating is used for reinforcing the connecting force between the magnetic coating and the back adhesive layer, and the back adhesive layer is used for being bonded with a printing stock during hot transfer printing; meanwhile, the invention further provides a preparation method and a printing method of the pre-coated colored tape with the magnetic effect.

The invention relates to a method (100) for producing a planar magnetized structure (1a) with two opposing sides (2a, 3a) of opposite magnetic polarity. It is proposed to roll or fold a magnetizable structure (1) in a specific manner before the magnetization process.

To provide magnetic particles (cobalt ferrite) having an average particle size of μm order and uniform particle size.SOLUTION: Cobalt ferrite magnetic particles are obtained by heat-treating a cobalt ferrite precursor in the presence of sulfite.SELECTED DRAWING: Figure 1

The application relates to the field of waterproof materials, and discloses a modified asphalt coating composition, a modified asphalt coating and a preparation method thereof, and a waterproof coiled material, wherein the composition contains a main agent and an auxiliary agent; the main agent comprises base asphalt, solvent oil with an aromatic hydrocarbon content of greater than or equal to 70 wt%, linear SBS, SBR, neodymium-iron-boron magnetic powder, cobalt borylate and styrene-indene resin; the content of the base asphalt is 40-55 wt% based on the total weight of the composition; the content of the solvent oil is 5-10 wt%; the content of the linear SBS is 3-5 wt%; and the content of the SBR is 3-5 wt%. The waterproof coiled material provided by the application is excellent in heat preservation, low-temperature resistance and deformation resistance and is suitable for metal roofs.

A deposition device may deposit, on a substrate, a binder layer that includes a first set of magnetic flakes and a second set of magnetic flakes and may cause, when a temperature of the binder layer satisfies a temperature threshold (e.g., a Curie temperature of the first set of magnetic flakes), a magnetic field to be applied to the binder layer to cause the first set of magnetic flakes and the second set of magnetic flakes to be oriented according to the magnetic field. The deposition device may cause, when the temperature of the binder layer ceases to satisfy the temperature threshold, another magnetic field to be applied to the binder layer to cause only the second set of magnetic flakes to be oriented according to the other magnetic field.

The invention relates to the technical field of surface bionic micro-nano structures, in particular to a bionic rigid-elastic coupling microstructure anti-drag coating and a preparation method thereof. According to the preparation method of the bionic rigid-elastic coupling microstructure anti-drag coating, the hydrophobic property of polydimethylsiloxane (PDMS) and the inherent magnetic property of Fe3O4 or CIP are utilized, the bionic coating with the rigid-elastic coupling microstructure is prepared on a stainless steel substrate through a magnetic field induction method, and the bionic coating has good underwater self-adaptive anti-drag performance. When the surface of the coating is in a water flow environment, the surface is subjected to a certain water pressure, and the rigid-elastic coupling microstructure is subjected to self-adaptive deformation. Wherein elastic deformation can absorb a part of energy, the turbine effect of the microstructure can decompose a large turbine into small turbines, and the small turbines and the dynamic rigid-elastic coupling microstructure jointly act to cope with water flow changes and reduce resistance. And after the surface water pressure is reduced, the microstructure recovers to the original height, and meanwhile, a relatively low solid-liquid contact area is kept.

Carbonyl iron powder obtainable by a process comprising: Continuously performing a decompression treatment of carbonyl iron powder under a vacuum degassing atmosphere at a pressure of 50 Pa or less for 6 hours or longer; and Performing a vent to the atmosphere for a period of 1 hour or longer, until the pressure of the vacuum degassing atmosphere reaches an atmospheric pressure of 1.0 × 10 5 Pa reached.

The invention relates to the field of protecting security documents such as, for example, banknotes and identity documents from counterfeiting and illegal copying. Specifically, the present invention provides an apparatus and method for producing an optical effect layer (OEL) comprising a magnetic orientation that exhibits not only a dynamic movement, but also an attractive relief and / or 3D effect when tilted, and can be used as a security means on security documents or security articles or for decorative purposes.

Disclosed herein are a method of conducting in-situ frontal polymerisation of one or both of a thermoplastic resin precursor and a thermoset resin precursor, and a thermoplastic polymeric composite ma

The invention relates to an insulating electrostatic encapsulating material based on high-conductivity ferrite and a preparation method of the insulating electrostatic encapsulating material. Relates to the field of insulating materials. The encapsulating material comprises the following components in parts by weight: 60-100 parts of bisphenol A epoxy resin; 13-20 parts of a curing agent; 14 to 20 parts of aluminum oxide; 0.5 to 1.5 parts of a leveling agent; 0.2 to 0.8 part of benzoin; 3-6 parts of silica powder; 1-2 parts of pigment; and 20 to 30 parts of MnFe2O4 (at) ZIF-8 particles. Ferrite particles are introduced, the ferrite particles have a magnetic core and an insulating shell, the problem that a traditional magnetic filler in an epoxy resin matrix destroys insulativity is effectively avoided, meanwhile, the dispersity of the filler is improved through interface modification of a metal organic framework ZIF-8, and the material is a novel encapsulating material with insulating and electromagnetic functions; the packaging material is effectively suitable for packaging electronic components which need insulation, weather resistance and electromagnetic shielding.

A deposition device may deposit, on a substrate, a binder layer that includes a first set of magnetic flakes and a second set of magnetic flakes and may cause, when a temperature of the binder layer satisfies a temperature threshold (e.g., a Curie temperature of the first set of magnetic flakes), a magnetic field to be applied to the binder layer to cause the first set of magnetic flakes and the second set of magnetic flakes to be oriented according to the magnetic field. The deposition device may cause, when the temperature of the binder layer ceases to satisfy the temperature threshold, another magnetic field to be applied to the binder layer to cause only the second set of magnetic flakes to be oriented according to the other magnetic field.

The invention discloses an epoxy resin-based composite coating adapting to a low-vacuum environment, a coating and a preparation method, and belongs to the technical field of concrete surface protective coatings. The composite coating comprises the following components in parts by mass: 40-80 parts of bisphenol F epoxy resin; 30-90 parts of a curing agent; 3-20 parts of a toughening agent; 3-15 parts of a diluent; 8-25 parts of a magnetic conductivity regulator; 10 to 30 parts of wollastonite powder; 0.5 to 4 parts of an adhesion promoter; 0.1 to 2.5 parts of a wetting dispersant; 0.05 to 0.5 part of graphene oxide; 0.5 to 3 parts of nano silicon dioxide; 1-3 parts of a pigment; and 0.05-1 part of other auxiliary agents. The composite coating disclosed by the invention has the characteristics of high toughness, good viscosity, high magnetic conductivity, strong compactness and the like, can adapt to a low-vacuum environment, effectively improves the problems of brittle cracking and adhesive force degradation of a traditional epoxy resin coating in a harsh environment of a low-vacuum pipeline, and is simple in preparation method, easy in raw material acquisition and suitable for industrial production.

The present invention relates to a UV-Vis radiation curable coating composition comprising magnetic or magnetisable pigment particles, as well as to a method for producing an optical effect layer (OEL) comprising magnetically oriented magnetic or magnetisable pigment particles, and to the use of said OEL as anti-counterfeiting means and decorative purposes on security documents or security articles. A UV-Vis radiation curable coating composition includes one or more (meth) acrylate monomers, one or more cyclic ether compounds, one or more vinyl ether compounds, one or more photoinitiators, one or more thermoplastic polymers, and non-spherical magnetic or magnetisable pigment particles.

The invention relates to a safe and environment-friendly court, and belongs to the technical field of sports facilities. The court is formed by laying a composite floor rubber material formed by firmly combining a silicon PU (polyurethane) bottom layer and a modified acrylic acid surface layer, a magnetic elastic filler is introduced into the modified acrylic acid surface layer for blending, and directional curing molding is assisted by magnetic force; according to the magnetic elastic filler, ferroferric oxide serves as a core, an organic silicon crosslinking layer is formed on the surface through chelating enrichment and in-situ crosslinking, uniform microcosmic protrusions are formed on the surface of a surface layer through magnetic force directional enrichment, the excellent rebound resilience of a Pick ball is kept, meanwhile, the skid resistance, rebound uniformity and local impact absorbability of a site are remarkably improved, and the service life of the Pick ball is prolonged. The defect of interlayer adhesive force of multilayer coating of a water-based acrylic acid system is overcome, and the paint is excellent in comprehensive performance and environment-friendly.

This invention belongs to the field of antibacterial coating manufacturing, specifically relating to a low-adhesion magnetic soft composite antibacterial coating, its preparation method, and its application. The method involves curing a magnetic soft composite material, then subjecting it to directional saturation magnetization and saturation swelling treatment on its surface to obtain the low-adhesion magnetic soft composite antibacterial coating. The magnetic soft composite material, by weight, comprises 20-40 parts silicone rubber, 40-80 parts silicone oil, and 20-40 parts neodymium iron boron nanoparticles. The low-adhesion magnetic soft composite antibacterial coating removes bacterial adhesion by being driven by a periodically moving magnet array. Compared with existing technologies, the low-adhesion magnetic soft composite antibacterial coating proposed in this invention removes bacterial adhesion under the drive of a periodically moving magnet array, exhibiting good biocompatibility and durable magnetic sterilization.

The invention relates to the technical field of functional powder coatings, and particularly discloses a powder coating capable of forming textures through magnetic control and a texture forming method. A powder coating capable of forming textures through magnetic control is prepared from base powder and magnetic pigment according to the mass ratio of (60-99): (1-40), and the base powder is prepared from, by weight, 50-80 parts of powder resin, 5-10 parts of filler, 0.5-10 parts of hyperchromic pigment and 6.5-13 parts of auxiliaries. Through the magnetic field gradient design of the magnetic mold, the three-dimensional texture is formed by directionally arranging the magnetic pigment powder along the magnetic field direction under the action of the external magnetic field by utilizing the directionally-arranged matrix of the magnetic pigment, the texture pattern can be programmed and regulated, the customization flexibility is higher, the texture formed under the same mold has high consistency, and the quality of the texture is improved. The consistency of texture coatings of multiple batches of products can be realized, and the formed texture coatings have excellent mechanical properties.

The invention provides a magnetic active coating for reducing high-frequency broadband electromagnetic radiation, the magnetic active coating comprises coating powder and an emulsion, the coating powder is rare earth ceramic powder with a spinel perovskite cage crystal structure, and the weight ratio of the coating powder to the emulsion is (27-30): (22-25). The magnetic active coating disclosed by the invention forms a spinel perovskite cage type crystal structure, and the structure becomes a nano porous magnetic active carrier and a nano wave-absorbing tunnel structure. Due to the characteristics, the magnetic active coating can absorb a wide frequency range of high-frequency electromagnetic waves, and the energy conversion agent and the activating agent amplifying agent in the raw materials composed of the spinel perovskite cage type crystal structure have a synergistic effect, so that the excellent effects that the electric heat energy conversion rate is high, water vapor and oxygen conveying channels are provided, and the service life of the coating is prolonged are achieved. And the coating absorbs indoor high-frequency electromagnetic waves, releases active oxygen, purifies indoor air, radiates low-frequency electromagnetic waves, and keeps an indoor constant-temperature effect.