99results about "Magnetic paints" patented technology

The invention discloses a super-wear-resistant super-hydrophobic coating in the technical field of coatings, the super-wear-resistant super-hydrophobic coating comprises a primer and a finishing coat, the primer comprises solvent-free aliphatic polyether polyol resin, micro-powder particles, di-tetratoluene diisocynate, fumed silica nanoparticles and a primer magnetic attraction material; the finishing paint comprises hydrophobic nanoparticles, a diluent, a finishing paint magnetic attraction material and a hydrophobic treatment agent, the primer magnetic attraction material is ferrite powder, and the finishing paint magnetic attraction material is nickel powder. The preparation method comprises the following steps: 1, preparing the primer; secondly, primer is sprayed; step 3, roughening the primer; 4, finish paint is manufactured; step 5, spraying finish paint; and step 6, detecting the performance of the coating. The preparation method is scientific and reasonable, the uniformity and stability of the coating in the preparation and coating process are ensured by optimizing the composition of the coating material, improving the preparation process and introducing a magnetic suction device, and therefore the wear resistance, hydrophobicity and adhesive force of the coating are improved.

The present invention belongs to the technical field of alkyd resin coatings, and discloses an alkyd external enamel and a preparation method thereof. The present invention adopts a bio-based high flash point alkyd resin as a base resin, adopts nano titanium dioxide, nano zinc oxide, nano aluminum oxide and micron aluminum oxide with different particle size distributions for compounding, and adds isocyanate silane and glycerol ether silane in the system. After grinding, the pigments and fillers can be modified to improve the filling and modification effect of the pigments and fillers. At the same time, the active groups such as isocyanate groups, epoxy groups, and hydroxyl groups in the coupling agent can interact with the alkyd resin to improve the compatibility of the pigments and fillers with the alkyd resin, and give the coating film excellent adhesion to the inorganic substrate. With a high flash point solvent, a bio-based coating with high flash point, high adhesion, high aging resistance and high wear resistance can be prepared to meet the use requirements of the external enamel. The alkyd external enamel is environmentally friendly and safe, and can be stored and transported according to general chemicals.

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.

The invention belongs to the field of wave-absorbing materials, and particularly relates to a preparation method and application of an aluminum oxide doped high-temperature radar wave-absorbing coating. According to the method for modifying the CBS microcrystalline glass through aluminum oxide doping, the problem of coating cracking caused by volume shrinkage due to crystallization in the heat treatment process of a CBS-based wave-absorbing coating prepared through traditional atmosphere plasma spraying is solved, the compactness of the coating is further improved, oxidation of a Fe-based magnetic absorbent in a high-temperature environment is prevented, and the service life of the wave-absorbing coating is prolonged. The high-temperature stability of the coating is improved, and the aluminum oxide raw material is convenient to obtain; the preparation method provided by the invention is simple in process and easy for industrial production, has the advantages of lower density, wider radar absorption frequency band, strong oxidation resistance and the like compared with a coating of the same type, and can be stably used in a 700 DEG C environment.

The invention relates to a preparation method of a super-hydrophobic composite coating based on magnetically-induced fluorinated graphene, which comprises the following steps: loading magnetic nanoparticles among fluorinated graphene sheets subjected to low-temperature ultrasonic dispersion by adopting a thermal solvent method to obtain a magnetic nanoparticle-fluorinated graphene composite material; coating the surface of a base material with a coating containing the magnetic nanoparticle-fluorinated graphene composite material, and then applying a directional magnetic field with a certain magnetic field intensity on the coating base material, so that the magnetic nanoparticle-fluorinated graphene composite material is directionally moved to the surface of the coating; the surface of the super-hydrophobic composite coating is provided with a microcosmic rough structure, and the super-hydrophobic composite coating has the characteristic of low surface energy. According to the preparation method, the dispersity of the fluorinated graphene in an organic resin matrix is improved, and the preparation process is simple, environmentally friendly, free of pollution and low in cost and can be used for large-scale production; according to the coating prepared by the preparation method, the corrosion resistance of the coating can be enhanced, multiple functions of hydrophobicity, corrosion prevention, antifouling and the like can be integrated, and the requirements of different application scenes are met.

The invention discloses an edge oil composition. The edge oil composition comprises the following components in percentage by weight: 88%-97% of polyurethane resin, 0.5%-1% of a defoaming agent, 0.5%-1% of a thickening agent, 1%-10% of a magnetic pigment and 0.1%-0.5% of an auxiliary agent. The invention also provides a preparation method of the edge oil composition and a leather processing method. The edge oil composition disclosed by the invention is convenient for decoration processing, the pigment can move under the action of magnetic field force, a gorgeous decoration effect is achieved, the preparation method is simple, easy to operate and convenient for industrial production and application, and meanwhile, the edge oil composition can be widely applied to leather processing.

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.

A slurry for chemical mechanical polishing (CMP) includes an aqueous liquid carrier, an oxygen and anion containing transition metal compound or polyatomic cations including a transition metal and oxygen or hydrogen, and a per-based oxidizer. The anion for the oxygen and anion containing transition metal compound can include oxynitrate, oxychloride, oxyhydroxide, oxyacetate, oxysulfide, or oxysulfate. The per-based oxidizer can be a permanganate compound.

The invention relates to the field of waterproof materials, and discloses a composition for a modified asphalt coating material, the modified asphalt coating material, a preparation method of the modified asphalt coating material and a waterproof coiled material, the composition contains a main agent and auxiliaries, and the main agent comprises matrix asphalt, solvent oil with the aromatic hydrocarbon content larger than or equal to 70 wt%, linear SBS, SBR, neodymium iron boron magnetic powder, cobalt boroacylate and styrene-indene resin; based on the total weight of the composition, the content of the matrix asphalt is 40-55 wt%, 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 invention is excellent in heat preservation property, low temperature resistance and deformation resistance and is suitable for metal roofs.

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 present invention belongs to the field of microwave absorbing materials, and particularly relates to a preparation method and application of a high-temperature radar absorbing coating doped with alumina. By doping alumina to modify CBS glass-ceramics, the present invention solves the problem of coating cracking caused by volume shrinkage due to crystallization during the heat treatment of CBS-based absorbing coatings prepared by traditional atmospheric plasma spraying, further improves the density of the coating, prevents the oxidation of Fe-based magnetic absorbents in high-temperature environments, enhances the high-temperature stability of the coating, and the alumina raw material is easily obtained; the preparation method of the present invention has simple process and is easy for industrial production, and has the advantages of lower density, wider radar absorption frequency band and strong antioxidant property compared with the same type of coatings, and can meet the stable use in an environment of 700 °C.

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 fiber directionally regulated resin-based coating and a preparation method thereof, the coating comprises a carbonyl iron powder layer and a plurality of magnetic fiber layers, the angles of the magnetic fiber layers are different, and a bionic spiral structure is formed; the carbonyl iron powder layers are sprayed among the plurality of magnetic fiber layers and between the magnetic fiber layers and the plate, or the carbonyl iron powder layers are only sprayed on the plate, or the carbonyl iron powder layers are only sprayed on the outermost magnetic fiber layer, or the carbonyl iron powder layers are only sprayed among the plurality of magnetic fiber layers. According to the invention, the composite material with a multi-scale structure is formed by combining materials with different scales, and the combination mode can fully utilize the characteristics of different materials to realize complementation and synergistic enhancement of performance. The one-dimensional nanofiber strengthening and toughening resin-based coating is prepared in a cross laying mode, the adhesive force of the resin-based coating is improved, and the method is simple in process, low in cost and suitable for industrial production.

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 provides a magnetic heating deicing material as well as a preparation method and deicing coating application thereof. The magnetic heating deicing material comprises an inner core and a coating layer on the surface of the inner core, the inner core comprises an iron-manganese alloy doped with rare earth metal; the coating layer comprises reduced graphene oxide modified by an amino silane coupling agent. The magnetic heating deicing material has a low Curie point and can enable a magnetic heating deicing coating to rapidly increase the surface temperature in a low-temperature environment on one hand, and has excellent conductivity and can further increase the heating value of the coating on the other hand, so that the deicing effect is enhanced, the efficient deicing effect is achieved, and the service life of the coating is prolonged. And the magnetic heating deicing material can actively prevent the formation of an ice layer in a low-temperature environment, has dual functions of ice prevention and deicing, and can be prepared at low cost and in a large scale.

The invention relates to the field of coating materials, and discloses an electromagnetic induction coating material as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out surface modification on cellulose nanocrystals by using a silane coupling agent gamma-aminopropyltriethoxysilane to obtain modified cellulose nanocrystals, and generating magnetic nanoparticles Fe3O4 on the surface of carboxylated multilayer graphene oxide by using a hydrothermal method, the preparation method comprises the following steps: preparing a multi-layer graphene / Fe3O4 composite material, introducing a high-activity acyl chloride group on the surface of the multi-layer graphene / Fe3O4 composite material through acylating chlorination reaction, reacting with 2-amino-4, 6-dichloropyrimidine and acetamide to prepare modified multi-layer graphene, reacting the modified cellulose nanocrystal and the modified multi-layer graphene with a waterborne polyurethane prepolymer to obtain a modified polyurethane composite emulsion, and preparing the waterborne polyurethane composite emulsion into the waterborne polyurethane composite material. Metal powder, nano silicon dioxide and the modified polyurethane composite emulsion are mixed and subjected to ultrasonic treatment, and the electromagnetic induction coating material is obtained and can be widely applied to the surfaces of ceramic and glassware articles.

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 relates to the technical field of badge paint surface preparation, and discloses a badge paint surface production process, which comprises the following steps: arranging liquid stoving varnish on the surface of a badge, smearing cat eye glue on the liquid stoving varnish in a non-dried state of the liquid stoving varnish, and arranging magnet powder in the cat eye glue into a preset color-changing shape by utilizing a magnet, and finally, drying and fixing are conducted, so that the surface of the badge presents a color changing effect through cat eye glue, unique visual experience is achieved, and the visual effect is improved.

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 relates to the technical field of aviation enamel paint, and provides aviation high-performance enamel paint and a preparation method thereof.The aviation high-performance enamel paint is prepared from modified fluorocarbon resin, nano boron nitride grafted polysiloxane, zinc hexafluoroacetylacetonate, a zirconium phosphate silver-loaded antibacterial agent, bisphenol F epoxy resin, cerium oxide coated graphene and the like; wherein the modified fluorocarbon resin is a tetrafluoroethylene-perfluoroalkyl vinyl ether-maleic anhydride terpolymer. According to the preparation method, a special system is adopted, dynamic staged mixing is achieved through a lifting-rotating linkage stirring mechanism, and a driving motor drives a transmission rod to be matched with an arc-shaped piece, so that a stirring rod synchronously conducts lifting and rotating movement; and the stirring direction is controlled to reverse through meshing of the special-shaped groove and the driving rod, and a silver-loaded antibacterial agent pulse type reduction process is combined. The high-performance enamel paint for aviation is obviously improved in the aspects of salt mist resistance, adhesive force, antibacterial rate and thermal decomposition performance.

The invention relates to the technical field of electrical auxiliary materials, and particularly discloses a memory alloy heat dissipation coating and a preparation method thereof. A memory alloy heat dissipation coating comprises a graphene infrared radiation layer and a memory alloy dynamic convection heat dissipation material distributed on the graphene infrared radiation layer, and the graphene infrared radiation layer is prepared from the following raw materials in parts by weight: 35-45 parts of elemental carbon powder; 10-14 parts of alumina powder; 4-6 parts of a water-based adhesive; 30-40 parts of a water-based solvent; 6-10 parts of a filler; 1-3 parts of an antioxidant; the memory alloy dynamic convection heat dissipation material comprises sheet-shaped memory alloy heat dissipation particles, and the sheet-shaped memory alloy heat dissipation particles are prepared from the following raw materials in parts by weight: 65-75 parts of copper; 8-12 parts of neodymium iron boron magnet elementary substance powder; and 18-22 parts of magnetic deformation memory alloy powder. According to the memory alloy heat dissipation coating, the radiation and convection dual heat dissipation effect is achieved, and the heat dissipation effect is greatly improved for equipment with low surface temperature such as a transformer and a motor.

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 discloses a preparation method of a magnetic field assisted directional heating coating, which comprises the following steps: S2, preparation of a heating heat-conducting layer: adding magnetic graphene, a first auxiliary agent, a diluent and a first surfactant into water-borne epoxy resin, and uniformly stirring to obtain mixed slurry; adding a curing agent into the mixed slurry, uniformly stirring to obtain a heating and heat-conducting coating, coating a bearing part with the heating and heat-conducting coating and wrapping the conductive electrode, magnetizing the bearing part in a magnetic field with the magnetic field intensity of 0.05-0.1 T for 30-60 minutes, and curing the bearing part at the temperature of 20-50 DEG C for 2-6 hours to form a heating and heat-conducting layer; s3, a heat insulation layer is prepared, specifically, the surface, away from the bearing part, of the heating heat conduction layer is coated with heat insulation foam to form the heat insulation layer, and then room temperature curing is conducted for 2-6 h; wherein the first auxiliary agent comprises at least one of boron nitride, aluminum oxide and aluminum nitride; compared with the prior art, the obtained magnetic field-assisted directional heating coating can quickly remove ice and has a lightning protection effect.

A core for an electrical apparatus includes a plurality of electrical steel sheets having a ferromagnetic or ferrimagnetic coating applied to both sides of the electrical steel sheets. The electrical steel sheets are arranged in a stack to form a laminated stack. The ferromagnetic or ferrimagnetic coating is applied to both sides of the electrical steel sheets. The coating may comprise MnZn ferrites, NiZn ferrites, MgMnZn ferrites, CoNiZn ferrites, Co ferrites, Ni ferrites, Yttrium iron garnets (Y3Fe5O12) or other ferromagnetic or ferrimagnetic coating materials.

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.