246 results about "Barium sulfate" patented technology

The invention discloses a water-based single-component super-amphiphobic refrigeration coating, a coating and a preparation method of the coating, and relates to the technical field of coatings. 20-35 parts of a second filler; 5-10 parts of a third filler; 20-35 parts of a film-forming substance, 1-9 parts of an auxiliary agent and 3-50 parts of water; the first filler comprises fluorine-containing silane modified fumed silica; the second filler comprises at least one of long-chain silane modified precipitated barium sulfate, long-chain silane modified calcium carbonate and long-chain silane modified hollow glass beads; the third filler comprises an infrared emission filler treated by an organic silicon modifier. By modifying the filler, the purposes of stable dispersion and functional synergy of low-surface-energy substances and high-proportion inorganic nano filler in a water-based system are achieved.

The invention discloses a novel automobile back view mirror flexible printed circuit board prepared based on weldable silver paste, and belongs to the technical field of electronic materials and devices, conductor patterns in the flexible printed circuit board comprise a main circuit pattern and an auxiliary function structure formed by weldable low-temperature curing silver paste; the curing temperature of the weldable low-temperature silver paste is 125-135 DEG C, and the weldable low-temperature silver paste comprises conductive filler, a polymer resin system, a high-boiling-point ester solvent, a curing agent, a silane coupling agent, a polyamide wax thixotropic agent, a polysiloxane defoaming agent, modified carbon nanotubes, modified aluminum oxide powder, modified barium sulfate and a low-stress modifier. The polymer resin system comprises novolac epoxy resin, biphenyl epoxy resin and a polyacrylate-CTBN copolymer; through the synergistic effect of all the components and an innovative process, comprehensive improvement of mechanical reliability, environmental durability, conductive stability and power load capacity is achieved, and the strict requirement for high reliability of the automobile rearview mirror in an extreme environment is perfectly met.

The invention belongs to the technical field of high polymer materials, and particularly relates to a polyolefin composite material as well as a preparation method and application thereof. The polyolefin composite material is prepared from the following raw materials: polyethylene, a polyolefin toughening agent, a compound flame retardant and a filler, the melt index of the polyethylene at 190 DEG C / 2.16 kg is greater than or equal to 18 g / 10 min, and the bending modulus is less than or equal to 160 MPa; the polyolefin toughening agent is selected from at least one of an ethylene-propylene copolymer, an ethylene-butylene copolymer and an ethylene-vinyl acetate copolymer, and the melt index at 230 DEG C / 2.16 kg is greater than or equal to 9 g / 10 min; the compound flame retardant comprises tetrabromobisphenol S bis (2, 3-dibromopropyl) ether, antimony trioxide and hydroquinone bis (diphenyl phosphate), and the filler is at least one of talcum powder, barium sulfate and wollastonite. Through specific types of polyethylene, the polyolefin flexibilizer, the compound flame retardant and the filler, excellent flame retardance and toughness can be obtained.

The invention relates to the technical field of organic high-molecular compound synthesis, in particular to a modified ABS material diffusion plate and a preparation method thereof.The preparation method comprises the steps that dried ABS resin and acrylonitrile-butadiene-styrene copolymer are mixed to prepare a modified ABS base material; mixing organic silicon microspheres and nano barium sulfate to obtain a modified light diffusion agent; judging that the modified light diffusant is unqualified by comparing the refractive index absolute difference between the modified light diffusant and the modified ABS base material, and performing modification compensation; a titanate coupling agent is determined to be adopted for modification according to the content of inorganic particles of the modified light diffusion agent; mixing the modified light diffusant with an antioxidant system, an ultraviolet protective agent and a processing aid to obtain a functional additive; and mixing with a modified ABS (Acrylonitrile Butadiene Styrene) base material, and extruding by using a twin-screw extruder to Through multi-parameter feedback and accurate compensation control, the problems that the compatibility of the modified light diffusion agent and the base material is poor and the stability of the machining process is insufficient are effectively solved.

The invention discloses a preparation method of a mute tube core layer and a mute tube. The preparation method comprises the following steps: step 01, adding 15-55 parts by weight of polypropylene resin, 0.5-10 parts by weight of a coupling agent, 0.5-5 parts by weight of a lubricant, 0.05-1 part by weight of an antioxidant and 0.1-3 parts by weight of other additives into a twin-screw extruder from a main feeding port of the twin-screw extruder, and melting and mixing to form an intermediate melt; 02, 45-85 parts by weight of barium sulfate is added into a double-screw extruder through at least two side feeding ports of the double-screw extruder, the barium sulfate and the intermediate melt are subjected to melt blending, and a blended melt is formed; and step 03, extruding the blended melt by a twin-screw extruder, and sequentially passing through a melt pump and a pipeline core mold to form the pipe core of the mute pipe. According to the preparation method, the filling proportion of barium sulfate is increased to 70% or above, the material density is larger than 2.4 g / cm < 3 >, and the noise test of a drainage pipe system of the mute pipe prepared through the preparation method is smaller than 20 dB.

The invention belongs to the technical field of modified plastics, and particularly relates to a high-reflection low-transmittance polypropylene composite material as well as a preparation method and application thereof. The invention provides a novel polypropylene composite material formula, which comprises homo-polypropylene, precipitated barium sulphate, hollow glass beads, maleic anhydride grafted polypropylene and a hyperbranched polymer dispersant, through selection and synergistic effect of the specific components, the reflectivity of the obtained polypropylene composite material is significantly improved, the light transmittance is greatly reduced, and the polypropylene composite material has a good application prospect. Good mechanical properties and high-whiteness surface appearance are kept, and the high-whiteness optical fiber can be widely applied to the field of various optical products.

The invention discloses a composite friction material and preparation and application thereof in brake pads, the composite friction material takes phenolic resin as a matrix, and modified barium sulfate and red copper fiber are dispersed in the matrix; the modified barium sulfate is composed of barium sulfate particles and a coating layer on the surfaces of the barium sulfate particles, that is, the modified barium sulfate has a core-shell structure, and the coating layer comprises a UiO-66 metal organic framework material. Compared with the existing pure phenolic resin and a composite material only added with common barium sulfate particles, the composite friction material provided by the invention has remarkable advantages in the aspects of friction coefficient, thermal stability and wear resistance by introducing the modified barium sulfate, can reduce friction noise, and is suitable for being used as a brake pad material.

The invention relates to the technical field of coating preparation, and particularly discloses a coating prepared from modified carbon black, which is prepared by adding a zinc or aluminum compound in a carbon black manufacturing process to prepare an aluminum / carbon black compound and a zinc / carbon black compound, and then preparing the aluminum / carbon black compound and the zinc / carbon black compound according to different proportions to obtain modified carbon black. And preparing coatings with different properties from the epoxy resin, a dispersing agent, a solvent, mica powder, barium sulfate, fumed silica, a flatting agent, a defoaming agent and polyamide. The coating prepared from the modified carbon black has higher corrosion resistance, ageing resistance, insulating property, hardness and wear resistance.

The invention belongs to the technical field of inorganic flame retardants, and provides a weather-resistant inorganic flame retardant and a preparation method thereof. The preparation method comprises the following steps: pretreating magnesium hydroxide, and then immersing the pretreated magnesium hydroxide into a silane coupling agent solvent for modification treatment to obtain modified magnesium hydroxide; mixing barium sulfate with a modifier, and carrying out modification treatment to obtain modified barium sulfate; and mixing the modified magnesium hydroxide, the modified barium sulfate and white carbon black to obtain the weather-resistant inorganic flame retardant. The method is simple and mild in condition, the prepared weather-resistant inorganic flame retardant greatly improves the dispersity and interfacial compatibility of magnesium hydroxide in an organic phase, and the weather-resistant inorganic flame retardant also has excellent weather resistance, flame retardance and aging resistance and has a wide application prospect in the field of flame retardance.

The invention discloses a passive radiation-cold storage composite box body and a preparation method. The box body sequentially comprises a composite radiation film, a heat insulation layer and a cold storage layer from outside to inside. The outer-layer radiation film is composed of an elastic organic matrix and high-reflection inorganic particles such as barium sulfate, has high solar reflectivity and mid-infrared high emissivity, and can effectively restrain solar absorption and achieve radiation heat dissipation in the daytime. The heat insulation layer is made of XPS, EPS, aerogel felt and other low-heat-conduction materials so as to reduce external heat transfer. Phase change microcapsules are dispersed in the cold storage layer, and flake graphite and other high-thermal-conductivity fillers can be added to improve the cold transfer efficiency and temperature uniformity. And the phase-change material realizes automatic cold storage and cold release through a latent heat mechanism, so that the temperature in the box body is kept stable. Through the synergistic effect of radiation refrigeration, heat insulation and phase change cold storage, long-time and recyclable passive cold chain temperature control is achieved, and the device has the advantages of being simple and convenient in structure, high in cost performance, flexible in application, uniform in internal temperature distribution and the like.

The invention belongs to the technical field of experiments and the field of anatomical research, and particularly relates to a self-developing vascular casting agent and a preparation method thereof. The invention discloses a preparation method of a self-developing vascular casting agent. The self-developing vascular casting agent is obtained by uniformly mixing iopromide, natural latex, II-type barium sulfate and pigment, wherein in parts by weight, the iopromide accounts for 30-40%; 25%-30% of natural latex; 40% of type II barium sulfate; and 5%-10% of pigment. The blood vessel casting agent developed by the invention is excellent in formula flowability (smooth perfusion), does not cause blockage, can avoid reverse osmosis of a capillary microenvironment, and realizes arteriovenous differentiated perfusion; and meanwhile, high-contrast development is realized, and complete coverage of capillary vessels is basically realized. The optimized blood vessel casting agent formula is completely cured (at room temperature) within 24 hours, the shrinkage rate is low, and blood vessel deformation is avoided.

The application discloses an environment-friendly black liquid photosensitive ink without 907 and 369 photosensitizers, which is composed of the following components in parts by weight: epoxy propylene acid resin 30-50 parts, photosensitizer 205 3-4 parts, photosensitizer 360 6-7 parts, photoinitiator 184 2-4 parts, superfine silicon powder 5-10 parts, superfine barium sulfate 20-30 parts, liquid chelating agent 1-3 parts, modified bentonite 15-30 parts, and organic silicon defoaming agent 5-10 parts. The application introduces long-wave environment-friendly photosensitizers for the first time, changes the structural defects of the traditional black system using 369 and 907 high carcinogenic photosensitizers to only meet short-wave length and insufficient deep curing of the ink, strengthens the deep curing effect of the carbon black photosensitive ink, improves the solder mask bridge manufacturing capacity of the carbon black photosensitive ink from 4 mil to 2 mil, and realizes secondary development. The product is high in efficiency and environmental protection and high in economic benefits, fully meets the European Union standard, and is mainly supplied to the European Union market.

This application discloses a water-based sand texture paint and its preparation method, belonging to the field of water-based paint technology. The water-based sand texture paint of this application, based on 100% of the total mass of the water-based sand texture paint, includes: 1-1.5% mixed corrosion inhibitor, 1.5-3.5% film-forming aid, 10-15% water-soluble acrylic resin, 15-20% hydroxyl acrylic dispersion, 10-15% polyurethane dispersion, 10-15% precipitated barium sulfate, 10-15% glass micro powder, 0.2-0.5% coupling agent, 0.2-0.3% wetting agent, 0.3-0.5% dispersant, 0.1-0.3% defoamer, 5-10% color paste, 0.2-0.5% bentonite, 0.3-2.5% thickener, 5-7% sand texture powder, 8-10% expanded graphite, 0.5-1.5% activation period extender, and 15-20% water. The water-based sand texture paint prepared using the formula and preparation method of this application has a low odor during the coating process, is non-flammable and non-explosive, and has low toxicity, making it more suitable for widespread use, especially for use in the luggage compartment of passenger cars, with a wide range of applications.

The present invention relates to a method for recovering valuable materials from waste. The method for recovering valuable materials from waste comprises the steps of: (a) pulverizing waste, which is generated from an evaporator or a crystallizer among equipment of a zero liquid discharge process for desulfurization wastewater, and then injecting same into a dissolution tank so as to dissolve same in a solvent and separating same into a gypsum (CaSO4) precipitate and a supernatant from which the gypsum has been removed; (b) dissolving, in a desulfurization tank, barium chloride (BaCl2) in the supernatant from which the gypsum has been removed, and separating same into a barium sulfate (BaSO4) precipitate and a supernatant from which the barium sulfate has been removed; (c) dissolving, in a hydroxide tank, sodium hydroxide (NaOH) in the supernatant from which the barium sulfate has been removed, and separating same into a magnesium hydroxide (Mg(OH)2 precipitate and a supernatant from which the magnesium hydroxide has been removed; and (d) injecting, into a salt pond, the supernatant from which the magnesium hydroxide has been removed, so as to recover sodium chloride (NaOH).

The invention discloses a production and preparation process of a heavy-duty water-based epoxy primer applicable to a high-salt and high-humidity environment, and relates to the technical field of production of water-based epoxy primers. Comprising the following raw materials in parts by mass: 30-50 parts of bisphenol A type water-borne epoxy resin emulsion, 10-20 parts of a curing agent T-31, 3.5-5 parts of a reinforced anti-settling agent, 8-12 parts of zinc phosphate, 5-8 parts of aluminum triphosphate, 10-15 parts of precipitated barium sulphate, 3-6 parts of silica powder, 0.8-1.2 parts of a sodium polyacrylate dispersing agent, 0.4-0.8 part of an organic silicon defoaming agent and 0.3-0.7 part of an acrylate flatting agent. And 0.6-1 part of a polyurethane thickening agent. The bentonite and the modified zirconium phosphate silicate powder in the reinforced anti-settling agent can improve the microstructure of the primer in a primer system, so that a coating is more compact and can be conveniently applied to a high-salt and high-humidity environment, and the salt spray resistance of the waterborne epoxy primer is enhanced.

This invention discloses a fissure grouting material, its preparation method, and its application, belonging to the technical field of radiation protection engineering materials. By mass, its raw materials include: 45-60 parts barite sand, 25-35 parts sulfoaluminate cement, 8-20 parts borax, 2-5 parts boron carbide powder, 1-5 parts nano-gadolinium oxide, 5-15 parts lithium slag powder, 3-8 parts barium sulfate whiskers, 3-8 parts polymer emulsion, 0.5-1.5 parts water-reducing agent, 0.1-0.5 parts stabilizer, and 18-25 parts water. This invention provides high-density gamma-ray shielding through barite sand, achieves all-round neutron protection through a quaternary composite neutron absorption system, enhances the material's toughness and shielding effect through barium sulfate whiskers, and ensures high fluidity and interfacial bonding strength of the grout through the polymer emulsion. This material is particularly suitable for sealing and shielding fissures in the surrounding rock of radioactive tunnels, possessing advantages such as excellent shielding effectiveness, good construction performance, high volume stability, and long-term durability.

This invention discloses a black-based blue-spotted glaze with an earthworm-like pattern and its preparation method. The glaze consists of a body, a black base glaze, and a blue-spotted glaze from the inside out. The raw materials for the black base glaze are: feldspar, calcite, calcium borate, dolomite, talc, barium carbonate, quartz, bentonite, zirconium silicate, rutile, cobalt oxide, manganese oxide, and iron oxide. The raw materials for the blue-spotted glaze are: feldspar, limestone, alumina, talc, barium sulfate, Datong clay, zinc oxide, quartz, and titanium dioxide. The preparation method includes: 1. Wet ball milling the black base glaze raw materials to obtain a black base glaze slurry; 2. Wet ball milling the blue-spotted glaze raw materials to obtain a blue-spotted glaze slurry; 3. Bisque firing the body; 4. Applying the black base glaze slurry to the body and drying it; 5. Applying the blue-spotted glaze slurry to the body and drying it; 6. Oxidation firing and reduction firing of the body, followed by natural cooling to obtain the black-based blue-spotted glaze. The raw material formula of this invention is reasonable and environmentally friendly, which can improve the mechanical properties of the glaze; the preparation method is simple and the yield is high.

The invention discloses a high-conductivity high-adhesion automobile bumper primer and a preparation method thereof, and belongs to the technical field of automobile bumper primers. The high-conductivity and high-adhesion automobile bumper primer is prepared from the following raw material components: polar modified chlorinated polypropylene, waterborne acrylic resin, a dispersing agent, a flatting agent, a defoaming agent, titanium dioxide, superfine precipitated barium sulfate, fumed silica, conductive filler and deionized water. The polar modified chlorinated polypropylene is obtained by carrying out free radical polymerization on a polar unsaturated monomer and chlorinated polypropylene; the polar unsaturated monomer is prepared from acrylic acid, methyl methacrylate, hydroxyethyl acrylate and 3-allyl-2-hydroxybenzaldehyde; the water-based acrylic resin is obtained by carrying out copolymerization on hydroxyethyl methylacrylate, hydroxyethyl acrylate, methacrylamide and 2, 5-divinyl benzene-1, 4-diamine; the conductive filler adopts carbon nanotubes, graphene and conductive carbon black; the high-conductivity and high-adhesion automobile bumper primer prepared by the preparation method disclosed by the invention is excellent in mechanical property and relatively good in conductivity.

A light scattering device is provided which is capable of suppressing heat generation in and around a light-exiting part and simultaneously limiting an irradiation area. A light scattering device 1 according to the present invention is provided with an optical fiber 10 comprising a core 10a positioned radially in the center and a sheath 10b positioned at the outer periphery of the core 10a, wherein the light scattering device 1 causes light entering from a proximal end of the optical fiber 10 to be emitted from a distal side T of the optical fiber 10.The optical fiber 10 is made of plastic and comprises: an optical transmission element 11 for transmitting the light entering from the proximal end to a distal end; and a light exit element 12, which allows the light transmitted by the light transmission element 11 to be emitted from an outer circumferential surface on the distal side T. The light exit element 12 is treated to suppress heat generation and comprises a reflective element 21 with a light reflectance of 80% or more in an area that does not form the light exit aperture 22 on the outer circumferential surface of the light exit element 12 and in a distal end surface TE. The reflective element 21 contains particles with light-reflecting properties, wherein the particles contain barium sulfate.

Articles may include at least non-PFAS elastomers and additives. The non-PFAS elastomers may include at least one of polyacrylate elastomer (ACM), polyethylene acrylate elastomer (AEM), ethylene propylene diene monomers (EPDM) elastomer, ethylene propylene monomers (EPM), nitrile butadiene rubbers (NBR) and hydrogenated nitrile butadiene rubbers (HNBR) elastomer. Under a six-hour remote NF3 plasma exposure at 150° C., the non-PFAS elastomers may have a weight change less than or equal to about 2%. The additives may include fillers, which include at least one of carbon black, silicon carbide, silica, barium sulfate, carbon, clay, talc, metallic fillers, metallic nitrides, and / or organic fillers. The organic fillers may include polyether ether ketone (PEEK), polyaryl ether ketone (PAEK), or nylon. The non-PFAS elastomer may have a weight percentage from about 25% to about 99%. The additives have a weight percentage from about 1% to about 67%.

The invention discloses a solid waste-based micro-nano radiation cooling coating and a preparation method thereof.The preparation method comprises the steps that fly ash and coal gangue serve as main solid waste raw materials, and after being subjected to ultra-fining and silane modification, the main solid waste raw materials and a phosphate exciting agent are subjected to chemical action to form an inorganic micro-nano gel matrix; nano-silica (SiO2) and barium sulfate (BaSO4) are cooperatively introduced as a spectrum regulation functional filler, and a multi-scale scattering structure and an intermediate infrared radiation channel are constructed, so that the radiation cooling effect of high solar reflectivity and high infrared emissivity is realized. The prepared coating has excellent spectral selectivity (the solar reflectivity is larger than or equal to 0.88, and the mid-infrared emissivity is larger than or equal to 0.95), high weather resistance (the 500-hour ultraviolet aging retention rate is larger than or equal to 95%) and remarkable passive cooling capacity (the temperature drop can reach 5-8 DEG C). The raw materials are wide in source, the preparation process is simple, a large amount of building solid waste or industrial solid waste can be utilized, the low-cost and high-performance green radiation cooling coating is achieved, and a technical path capable of being popularized on a large scale is provided for building outer wall energy-saving transformation and urban heat island relieving.

The invention discloses a high-temperature-resistant maintenance-free lead-acid storage battery for starting. The lead-acid storage battery comprises a positive plate, a negative plate, a partition plate, electrolyte and a storage battery tank, the positive plate comprises a positive grid filled with positive lead plaster; the negative plate comprises a negative plate grid filled with negative lead plaster; the negative electrode lead paste is prepared by curing lead powder, a condensation polymer of beta-naphthol sulfonic acid and formaldehyde, lignin, barium sulfate, acetylene black, short fibers, a sulfuric acid aqueous solution and deionized water according to a ratio. The condensation polymer of beta-naphthol sulfonic acid and formaldehyde added in the negative electrode lead paste has low solubility in an electrolyte and strong oxidation resistance, reduces the volume of lead sulfate crystals generated by discharge, increases the porosity of a negative electrode active substance, inhibits the formation of large-particle metal lead in the charging process, delays the shrinkage of the negative electrode active substance, and improves the charging efficiency. Meanwhile, the hydrogen evolution overpotential is improved, and the water loss of the storage battery is inhibited.

The present invention developed a composite having a novel structure containing, in a high content, a powder having a radiation-shielding function.　Provided is a composite having a radiation-shielding function and a method for producing the same. The composite comprises a preform made from a mixture containing a liquid silica-based binder and one or more radiation-shielding powders selected from gadolinium oxide, boron carbide, boron oxide, boron, barium sulfate, strontium oxide, tungsten, tungsten oxide, tungsten carbide, molybdenum, molybdenum oxide, iron powder, iron oxide powder, and ferrite powder, the radiation-shielding powder(s) being contained in the range from 3% to 85% in total. All of the voids in the preform are impregnated and filled with molten aluminum and solidification is allowed to occur to form a composite, or 25% or more of the voids in the preform are impregnated with a liquid organic / inorganic sealing agent and solidification is allowed to occur to form a composite. The liquid silica-based binder has properties that allow the preform to be formed at a temperature at which the radiation-shielding powder(s) does not decompose.

The present application relates to the technical field of rubber tube, and particularly relates to a flame-retardant oil-resistant inner-fluorine outer-silicon rubber tube material and a preparation method thereof. The flame-retardant oil-resistant inner-fluorine outer-silicon rubber tube material comprises, from inside to outside, an inner-fluorine rubber layer, a calendered cloth layer and a silicon rubber layer. The inner-fluorine rubber layer is prepared from the following raw materials in parts by weight: FKM mixed rubber 50-70 parts, FVMQ mixed rubber 40 parts; wherein the FKM mixed rubber is prepared from the following raw materials in parts by weight: FKM 60-80 parts, carbon black 15-25 parts, barium sulfate 8-14 parts, modified magnesium hydroxide whisker 5-10 parts, plasticizer 6-12 parts, vulcanization aid 2-6 parts; and the FVMQ mixed rubber is prepared from the following raw materials in parts by weight: FVMQ 20-28 parts, polytetrafluoroethylene micro powder 6-12 parts, lignin sulfonate 4-8 parts, lubricant 0.5-2.5 parts. The rubber tube material prepared by the present application has not only good mechanical properties, but also high flame retardancy and good oil resistance.

A positive electrode active material for a lithium secondary battery, contains a lithium metal composite oxide and barium sulfate, in which the lithium metal composite oxide is represented by Formula (1).         Li[Lia(Ni(1-b-c)M1bM2c)1-a]O2 ...     (1) (in Formula (1), M1 is at least one element of Co, Mn, or Al, M2 is at least one element of Ti, Zn, Zr, Mg, Ca, B, Si, Nb, W, Mo, Ta, or P, and Formula (1) satisfies -0.1 ≤ a ≤ 0.2, 0 < b ≤ 0.4, 0 ≤ c ≤ 0.4, and 0 < b + c ≤ 0.4)

This invention relates to an electromagnetic shielding polyester powder coating containing carbon-iron composite conductive filler and its preparation method, belonging to the field of electromagnetic shielding composite material technology. The method includes the following steps: S1, dispersing purified iron(III) oxide nanoparticles ultrasonically in a mixed solvent of ethanol, deionized water, and ammonia to obtain an iron(III) oxide / silica composite material; S2, dissolving carboxylated multi-walled carbon nanotubes in a silane coupling agent, rinsing and drying to obtain a modified carbon-iron composite material; S3, mixing polyester resin, the modified carbon-iron composite material obtained in S2, precipitated barium sulfate, curing agent, leveling agent, benzoin, and carbon black raw materials according to a specified ratio, and finally completing the curing process. This electromagnetic shielding polyester powder coating containing carbon-iron composite conductive filler, by introducing the modified carbon-iron composite conductive filler, achieves an electromagnetic shielding effectiveness of over 30 dB in the X-band, effectively blocking electromagnetic radiation and meeting the shielding requirements of electronic equipment and communication systems.

The invention discloses a manufacturing method of a long-acting optically variable functional film. The manufacturing method comprises the following steps: preparing raw materials of an isolation rubber layer: uniformly mixing PVB (Polyvinyl Butyral) resin powder, triethylene glycol di-2-ethylhexoate, an ultraviolet light absorber, an antioxidant, a light stabilizer, white carbon black, titanium dioxide and precipitated barium sulphate under a certain condition, extruding and casting to obtain the isolation rubber layer; preparing raw materials of a functional adhesive layer: uniformly mixing PVB (Polyvinyl Butyral) resin powder, an antioxidant, nano blue tungsten and a photochromic component under a certain condition, extruding and casting to obtain the functional adhesive layer; and laminating and bonding the isolation glue layer and the functional glue layer according to a sequence of isolation glue layer-functional glue layer-isolation glue layer to obtain the long-acting optical variable functional film. The upper isolation rubber layer and the lower isolation rubber layer are adopted to carry out closed protection on the functional rubber layer playing a core role, and meanwhile, the ultraviolet light absorber and the antioxidant are added into the isolation rubber layers, so that erosion of ultraviolet light, oxygen and moisture to the functional rubber layer is effectively prevented, and the service life of the functional rubber layer is prolonged.

The invention discloses a radiation refrigeration material, a preparation method and a preparation device, and the radiation refrigeration material comprises a primer layer, a middle paint layer and a finish paint layer, the primer layer is doped with titanium dioxide nano particles; the middle paint layer is doped with aluminum oxide or barium sulfate nanoparticles; and the finish paint layer is doped with silicon dioxide nanoparticles and a fluorescent material. The preparation method of the radiation refrigeration material comprises the following steps: S1, respectively preparing the primer, the intermediate paint and the finish paint through weighing, stirring, grinding and filtering processes; s2, the surface of an object is coated with primer, and a primer layer is formed; s3, the surface of the primer layer is coated with intermediate paint, and an intermediate paint layer is formed; and S4, the surface of the middle paint layer is coated with finish paint to form a finish paint layer. The radiation refrigeration material preparation device comprises a stirring barrel, a stirring shaft and a feeding pipe. According to the scheme, the spectral selectivity, durability, environmental friendliness and attractiveness of the refrigeration material can be effectively guaranteed.

The invention belongs to the technical field of coatings, and provides a self-repairing, self-cleaning and weather-resistant iron base plate primer-topcoat integrated coating and a preparation method thereof, and the self-repairing, self-cleaning and weather-resistant iron base plate primer-topcoat integrated coating is prepared by mixing a component A and a component B according to an isocyanate index of 1-1.1, wherein the component A is prepared from the following components in parts by mass: 26 to 31 parts of polyaspartic acid ester PAE-1, 26 to 29 parts of polyaspartic acid ester PAE-2, 4 to 8 parts of polyaspartic acid ester PAE-3, 3 to 5 parts of mica powder, 1 to 3 parts of wetting dispersant, 0.5 to 1 part of defoaming agent, 0.3 to 0.6 part of flatting agent, 0 to 3 parts of color paste, 2 to 4 parts of anti-precipitation aid, 5 to 8 parts of ultraviolet light absorber, 13.2 to 24.9 parts of zinc phosphate and 1 to 4 parts of barium sulfate; the component B is prepared from 7 to 12 parts of isocyanate prepolymer A, 16 to 22 parts of isocyanate prepolymer B, 65 to 75 parts of hexamethylene diisocyanate tripolymer and 2 to 4 parts of butyl acetate. According to the technical scheme, the problem that in the prior art, a polyaspartic acid ester polyurea coating is insufficient in salt mist resistance and weather resistance is solved.

The application discloses a kind of optical adhesive protective group film, comprising: core layer, it is arranged between first surface layer and second surface layer;Core layer includes first polyester;First surface layer and second surface layer include the mass ratio of (45~50) and functional master batch of (50~55) first polyester, and functional master batch includes polyethylene naphthalate, second polyester and modified barium sulfate.By mixing the dispersibility of functional master batch and first polyester is improved, and then the haze and light transmittance of base film are optimized;By polyethylene naphthalate preparation functional master batch, the heat resistance and stability of base film are optimized, and its transmittance is improved and haze is reduced.