33 results about "Diphenyl Oxides" patented technology

The invention discloses a polyetherketoneketone high-temperature-resistant wear-resistant non-stick coating and a preparation method thereof. The coating is prepared from the following components in parts by mass: 13 to 30 parts of a resin matrix group (containing 12 to 25 parts of titanium modified polyether ketone ketone resin, 1 to 5 parts of fluorine-free viscous resin and 0.65 to 6 parts of aluminum oxide), 0.5 to 3 parts of a nano reinforced group (containing 0.5 to 3 parts of KH-550 modified nano titanium dioxide, 0.025 to 0.6 part of cerium dioxide and 0.5 to 3 parts of boron nitride) and 62 to 71 parts of an auxiliary agent group. The preparation method comprises the following steps: 1) taking diphenyl ether, paraphthaloyl chloride and isophthaloyl chloride as monomers, and synthesizing titanium modified polyether ketone ketone resins with different viscosities through segmented polymerization (1.5-2.0 hours or 3.0-4.0 hours); 2) respectively preparing a smooth bottom layer water dispersion slurry and a wrinkled surface layer water dispersion slurry; and (3) forming a compact bottom layer and a micro-wrinkle surface layer on the base material by adopting a layered spraying and stepped sintering process (280-320 DEG C, 10-20 minutes). The whole system of the coating is fluorine-free and has temperature resistance gt; the coating has the characteristics of high temperature resistance (350DEG C), wear resistance (Taber wear rate of 3-5mg / 1000r), non-sticking (contact angle gt, 100 DEG C) and heavy corrosion resistance, and is suitable for cooking utensils and chemical equipment.

This anticorrosive coating composition comprises a main agent (I) and a curing agent (II), wherein: the main agent (I) contains an epoxy resin (a); the epoxy resin (a) contains at least one of a bisphenol A epoxy resin (a-11) and a novolac epoxy resin (a-12) each having a weight average molecular weight of 6,000-12,000; the curing agent (II) contains a polyamine (b) and an alkylphenol (c); the polyamine (b) contains an alicyclic polyamine (b-1) having a cyclic aliphatic hydrocarbon group to which an amino group is bonded and contains a non-alicyclic polyamine (b-2) having no cyclic aliphatic hydrocarbon group to which an amino group is bonded; at least one of the main agent (I) and the curing agent (II) includes a vinyl-based defoaming agent (d) that has a constituent unit derived from at least one monomer selected from the group consisting of alkyl (meth)acrylates, alkyl vinyl ethers, and olefins and that has a number average molecular weight of 30,000-100,000 or 300,000-2,000,000; the content of the alicyclic polyamine (b-1) is 30%-80% by mass of the solid content of the curing agent (II); the content of the non-alicyclic polyamine (b-2) is 2%-45% by mass of the solid content of the curing agent (II); the content of the alkylphenol (c) is 5%-60% by mass of the solid content of the curing agent (II); and the content of the vinyl-based defoaming agent (d) is 0.005-3 parts by mass with respect to 100 parts by mass of the anticorrosive coating composition.

The invention discloses a preparation method of a polyimide-boron nitride nanosheet heat-conducting composite film. The preparation method comprises the following steps: firstly, dispersing boron nitride nanosheets into N, N-dimethylacetamide containing poly (diallyldimethylammonium chloride) to prepare slurry; meanwhile, 4, 4 '-diaminodiphenyl ether reacts with pyromellitic dianhydride to prepare a polyamide acid solution. And mixing the two materials, forming a layered structure through vertical and horizontal temperature gradients by adopting a bidirectional freezing casting technology, and freezing by liquid nitrogen to obtain the aerogel in oriented arrangement. And performing hot pressing and step-by-step thermal imidization treatment to obtain the heat-conducting composite film. According to the method, the highly-oriented arrangement of boron nitride nanosheets is constructed through bidirectional freezing casting, and the composite film has excellent heat-conducting property and keeps good mechanical strength and flexibility in combination with the surface modification effect. The process is simple and controllable, and is suitable for the fields of flexible electronics, 5G heat dissipation, battery thermal management and the like.

The invention discloses a fireproof flame-retardant battery diaphragm, a preparation method thereof and a fireproof flame-retardant battery, and relates to the technical field of battery diaphragms. When the fireproof flame-retardant battery diaphragm is prepared, boric acid diglyceride and chlorinated trimellitic anhydride mixed liquor react to prepare a flame-retardant monomer; the preparation method comprises the following steps: polymerizing 4, 4 '-diaminodiphenyl ether and a flame-retardant monomer, and carrying out electrostatic spraying to prepare polyamide acid microspheres; dehydrating and drying the polyamide acid microspheres to obtain polyimide microspheres; performing etching-acidification on the polyimide microspheres to prepare carboxylated polyimide microspheres; allyl phosphoric acid and acrylic acid are copolymerized and grafted on the surface of a polyethylene film to prepare a modified polyethylene film; and coating the surface of the modified polyethylene film with the carboxylated polyimide microspheres to prepare the fireproof flame-retardant battery diaphragm. The prepared fireproof flame-retardant battery diaphragm has excellent flame retardance, wetting performance and thermal stability.

The invention discloses a flame-retardant heat-insulating aluminum foil reinforced composite material and a preparation method thereof, and belongs to the technical field of aluminum foil reinforced composite materials. The flame-retardant heat-insulating aluminum foil reinforced composite material prepared by the invention sequentially comprises an aluminum foil layer, a reinforced net, kraft paper and a flame-retardant adhesive layer for bonding the aluminum foil layer and the reinforced net and bonding the reinforced net and the kraft paper from bottom to top, the flame-retardant adhesive layer comprises the following raw material components: a dianhydride monomer, an amine monomer and a heat-insulating filler; the amine monomer comprises 4, 4 '-diaminodiphenyl ether, flame-retardant diaminobenzimidazole and 4-aminobenzonitrile, the heat-insulating filler is prepared from hydroxyapatite nanowires, montmorillonite nanosheets and aminated polyvinyl alcohol, and the flame-retardant heat-insulating aluminum foil reinforced composite material prepared by the preparation method disclosed by the invention is relatively good in flame retardance and heat insulation.

The invention discloses a flame-retardant fireproof hose and a preparation method thereof, and relates to the technical field of flame-retardant fireproof materials. The invention discloses a flame-retardant fireproof hose. The flame-retardant rubber material is prepared from the following raw materials in parts by weight: 60 to 80 parts of ethylene propylene diene monomer, 20 to 30 parts of chlorinated polyethylene, 5 to 12 parts of dioctyl phthalate, 1 to 3 parts of stearic acid, 40 to 60 parts of modified magnesium hydroxide, 5 to 10 parts of antimony trioxide, 2 to 5 parts of nano silicon dioxide, 8 to 15 parts of decabromodiphenyl ether, 3 to 8 parts of carbon black, 15 to 25 parts of modified glass fiber and 1.5 to 3 parts of dicumyl peroxide. And sufficient polyvinyl chloride flame-retardant coating is provided. The flame-retardant fireproof hose is scientific in raw material ratio, the ethylene propylene diene monomer and the chlorinated polyethylene synergistically improve the toughness of a matrix, and the modified magnesium hydroxide and the modified glass fibers enhance the flame retardance and mechanical properties; the preparation process is rigorous, uniform dispersion of the filler is ensured through multi-step modification, and vulcanization and spraying parameters are accurate and controllable; the product is excellent in flame retardance, high in process reproducibility, suitable for large-scale production and capable of meeting the fireproof requirements of various scenes.

The invention relates to a high-wear-resistance modified phenolic resin material for a guide ring and a preparation process thereof. The high-wear-resistance modified phenolic resin material for the guide ring is prepared from the following raw materials in parts by mass: 100 parts of linear phenolic resin, 20-35 parts of a polyimide prepolymer, 20-45 parts of a reinforcement, 10-25 parts of a wear-resistant filler, 1-3 parts of a silane coupling agent and 8-12 parts of a curing agent, the polyimide prepolymer is prepared by reacting pyromellitic dianhydride with 4, 4 '-diaminodiphenyl ether. The high-wear-resistance modified phenolic resin material for the guide ring, prepared by the invention, has excellent high-temperature wear resistance.

The application provides a wear-resistant enameled copper wire and a preparation method thereof, and belongs to the technical field of enameled copper wires.The preparation method comprises the following steps: repeatedly coating wear-resistant paint on a copper wire and curing the wear-resistant paint into a paint film, and then cooling and winding the copper wire to obtain the wear-resistant enameled copper wire.The preparation method of the wear-resistant paint comprises the following steps: adding 4,4'-diamino-4"-hydroxytriphenylmethane and 2,2-bis-[4-(4-aminophenoxy)phenyl]propane into a polymerization bottle, adding N,N-dimethylacetamide, stirring and dissolving, adding 3,3',4,4'-benzophenonetetracarboxylic dianhydride, stirring and polymerizing, and obtaining a polyamic acid solution one; adding 4,4'-diamino diphenyl ether into the polymerization bottle, adding N,N-dimethylacetamide, stirring and dissolving, adding pyromellitic dianhydride, stirring and polymerizing, and obtaining a polyamic acid solution two; adding the polyamic acid solution one and the polyamic acid solution two into the polymerization bottle, adding a silane coupling agent, stirring, adding N,N-dimethylacetamide and a peroxide initiator, and stirring uniformly to obtain the wear-resistant paint; and the wear resistance of the wear-resistant enameled copper wire can be effectively improved.

The invention provides porous carbon, a silicon-carbon negative electrode material and a preparation method thereof, and the preparation method of the porous carbon comprises the following steps: providing a mixture comprising first resin, a flame retardant and a defoaming agent, dissolving the mixture in a first organic solvent, and carrying out spray drying to prepare a granular precursor, the flame retardant comprises at least one of decabromodiphenyl ethane, decabromodiphenyl ether, octabromodiphenyl ether, pentabromodiphenyl ether, tetrabromobisphenol A and hexabromocyclododecane, and at least one of decabromodiphenyl ether, octabromodiphenyl ether, pentabromodiphenyl ether, tetrabromobisphenol A and hexabromocyclododecane; carrying out carbonization treatment on the granular precursor to form a carbonization treatment product; and carrying out activating treatment on the carbonization treatment product to form the porous carbon.

The invention belongs to the technical field of electromagnetic wires, and particularly relates to a polyether-ether-ketone electromagnetic wire and a preparation method thereof. The electromagnetic wire provided by the invention comprises a copper conductor, wherein the copper conductor is sequentially coated with an insulating layer A and an insulating layer B from inside to outside; the raw materials of the insulating layer A comprise a diphenyl ether monomer and terephthaloyl chloride, and the diphenyl ether monomer comprises 4, 4 '-diphenoxy diphenyl sulfone; and the raw materials of the insulating layer B comprise fluororesin and polyether-ether-ketone. According to the polyether-ether-ketone electromagnetic wire, the adhesiveness of the insulating layer and the copper conductor is remarkably improved, the falling or cracking risk of the insulating layer is effectively reduced, meanwhile, the electromagnetic wire has excellent insulating performance, and the polyether-ether-ketone electromagnetic wire is particularly suitable for high-frequency and high-voltage application scenes.

The invention discloses polymer PI fiber heat preservation cotton and a preparation method thereof.The heat preservation cotton comprises an inner layer, a middle layer and an outer layer, the inner layer comprises PI fibers and polyvinyl alcohol fibers, the middle layer comprises the PI fibers and skin-core composite fibers, and the outer layer comprises the PI fibers, aramid fibers and low-melting-point fibers; the middle layer PI fiber is a modified PI fiber, and the preparation of the modified PI fiber comprises the following steps: under a nitrogen protection atmosphere, polymerizing pyromellitic dianhydride and 4, 4 '-diaminodiphenyl ether in N, N-dimethylacetamide to obtain a polyamide acid solution; adding phenylacetylene-terminated hyperbranched polysiloxane, fluorinated graphene oxide, a surfactant and a pore-forming agent into the polyamide acid solution, and reacting to obtain a modified polyamide acid spinning solution; and carrying out dry spinning and thermal forming treatment on the modified polyamide acid spinning solution to obtain the modified PI fiber. The obtained heat preservation cotton has the characteristics of heat preservation, washing resistance and comfort.

Polyaryletherketone, PAEK, in the form of particles, is provided for use in component formation by powder bed sintering (PBS). The PAEK is a polyetheretherketone- polyetherdiphenyletherketone (PEEK-P

The invention belongs to the technical field of stealth coatings, and relates to a PI-based porous wave-absorbing coating based on flame spraying and a preparation method of the PI-based porous wave-absorbing coating. The PI-based porous wave-absorbing coating takes porous polyimide as a continuous matrix, and neodymium-doped barium ferrite and multi-walled carbon nanotubes are dispersed in the porous polyimide matrix; through a flame spraying method, spraying suspension liquid formed by 4, 4 '-diaminodiphenyl ether, pyromellitic dianhydride, neodymium-doped barium ferrite, multi-walled carbon nanotubes and an organic solvent is sprayed on the surface of a substrate. The PI-based porous wave-absorbing coating provided by the invention has excellent broadband strong absorption characteristic, can keep stable wave-absorbing performance in a wider thickness range, shows remarkable thickness insensitivity, and greatly reduces the precision requirement on thickness control of the coating.

The invention discloses a regeneration method of a waste ternary battery positive electrode material, and relates to the field of battery materials. When the positive electrode material of the waste ternary battery is regenerated, the ternary lithium ion battery is discharged, disassembled, degummed, roasted, washed with alkali, supplemented with lithium and crushed, polythiophene is polymerized on the surface of the ternary lithium ion battery, then the ternary lithium ion battery reacts with 2, 6-di-tert-butyl-4-bromomethylphenol and (1-methyl-imidazole-5-yl) methylamine in sequence, and a functionalized regenerated ternary material is prepared; the preparation method comprises the following steps: polymerizing 3-aminopropyl dimethyl methoxy silane, dimethyl dimethoxy silane and methyl dimethoxy silane, then reacting with 4-vinyl phenylboronic acid, and finally reacting with 4, 4 '-diphenylboronic acid to obtain a finished product. The regenerated ternary battery positive electrode material is prepared by polymerizing 4, 4 '-diaminodiphenyl ether, 3, 3'-dihydroxybenzidine and hexafluorodianhydride, mixing with carbon black and the functionalized regenerated ternary material, coating the surface of an aluminum foil with the mixture, and drying. The regenerated ternary battery positive electrode material has good cycle stability, durability and self-repairing performance.

This invention discloses a polyimide-potassium sodium niobate composite film, its preparation method, and a piezoelectric nanogenerator, belonging to the field of nanogenerator technology. The method includes: ball milling and mixing Nb₂O₅, Na₂CO₃, and K₂CO₃ until uniform and drying; grinding, sieving, calcining, and grinding again to obtain potassium sodium niobate ceramic nanoparticle fillers; mixing anhydrous N,N-dimethylformamide solution and 4,4'-diaminodiphenyl ether powder until uniform; adding pyromellitic dianhydride powder in multiple batches; stirring thoroughly after reaction; adding potassium sodium niobate ceramic nanoparticle fillers; repeated ultrasonication and stirring; heating and stirring reaction; casting; vacuum drying; gradient temperature calcination; and cooling to obtain a polyimide-potassium sodium niobate composite film; the assembled piezoelectric nanogenerator combines... d 31 and d 33 With dual operating modes, it can collect and utilize micro-energy in various application environments, and its power density is significantly enhanced compared to the traditional single operating mode; it also maintains excellent operating stability at a high temperature of 150℃.

The invention relates to the field of coatings, and discloses an electric iron accessory corrosion-resistant coating and a preparation method thereof.The coating comprises water-borne epoxy resin, modified composite filler, spherical zinc powder, a curing agent and auxiliaries; the modified composite filler is prepared by grafting amino on the surface of the composite filler through m-phenylenediamine and loading benzotriazole on the surface of the polyaniline modified composite filler; the composite filler is prepared by compounding aminated nano titanium dioxide and graphene oxide through electrostatic interaction; the curing agent is prepared by reacting 4-allyloxy-2-hydroxybenzophenone with 4, 4 '-diacyl chloride diphenyl ether and then carrying out hydrosilylation with the silicon-containing curing intermediate; the silicon-containing curing intermediate is prepared in the mode that DOPO and thiourea are subjected to addition, then the DOPO and thiourea are substituted with 2-chloro-5-(propyl-1-ene-2-yl) thiophene and react with 1, 1, 3, 3-tetramethyldisiloxane, and the coating prepared through the method has the good mechanical strength, salt fog resistance, humidity and heat resistance, ultraviolet aging resistance and the flame retardant effect.

This application relates to a highly oriented polyimide film, its preparation method, and its applications, belonging to the field of polymer materials technology. The film is made from a specific ratio of aprotic polar solvent, 4,4'-diaminodiphenyl ether, pyromellitic dianhydride, and optional functional fillers. The preparation method involves stepwise addition of pyromellitic dianhydride, followed by polymerization under high-speed shear stirring to obtain a highly uniform polyamic acid solution. Subsequently, the solution is cast, pre-cured by gradient heating to form a gel film, and then simultaneously biaxially stretched under heating conditions to induce molecular chain orientation. Finally, thermal imidization is completed through programmed temperature rise. The film obtained by this invention has advantages such as uniform thickness, high mechanical strength, excellent dimensional stability, and good electromagnetic shielding performance. It can be widely used in fields such as 5G flexible copper-clad laminates, flexible display packaging, and electromagnetic shielding films, improving the reliability of devices.

The application belongs to the technical field of supercapacitors, and discloses a preparation method of O and P doped super-microporous carbon nanomicrosphere and application of the super-microporous carbon nanomicrosphere in quasi-solid flexible capacitors. The method comprises adding sodium dodecyl diphenyl ether disulfonate, acrylonitrile, potassium persulfate and acetic acid in deionized water, performing emulsion polymerization reaction at 72 DEG C for 10 hours, and preparing carbide by pre-oxidation and carbonization of the powder after demulsification, and further performing concentrated phosphoric acid impregnation to dope P and O elements to obtain the final product. The application applies super-microporous carbon material to aqueous zinc ion hybrid capacitors for the first time. The limited action of super-microporous channels on hydrated zinc ions and the promoting action of O and P doping on desolvation of hydrated zinc ions realize 262 Wh kg ‑1 of battery level high energy density. The application is simple in operation and friendly to the environment, and proves the great potential of heteroatom doped super-microporous carbon based material in the application of aqueous zinc ion hybrid capacitors.

The application provides a gradient hydrophilic-hydrophobic diaphragm for an aqueous zinc ion battery, which comprises a hydrophilic layer, a first hydrophobic layer and a second hydrophobic layer, the hydrophilic layer is located between the first hydrophobic layer and the second hydrophobic layer, thereby forming a gradient hydrophilic-hydrophobic diaphragm with hydrophobic and hydrophilic layers alternating; wherein the hydrophilic diaphragm layer is prepared by using an electrospinning process, and a mixed solution of 4,4'-diamino diphenyl ether (ODA) and pyromellitic dianhydride (PMDA) is used as a hydrophilic precursor; the hydrophobic diaphragm layer is prepared by using an electrospinning process, and a mixed solution of polyacrylonitrile (PAN) and polyvinylidene fluoride (PVDF) is used as a hydrophobic precursor. The gradient hydrophilic-hydrophobic diaphragm can reduce the desolvation barrier to inhibit the occurrence of side reactions, inhibit the disordered growth of zinc negative electrode dendrites while keeping the electrochemical performance of the zinc ion battery unchanged, and improve the cycle performance of the battery.

The invention discloses a sulfur-containing functional group graphene modified and surface lithiated polyimide fiber diaphragm and a preparation method thereof, and the preparation method comprises the following steps: reacting graphene oxide with a sulfur-containing acid oxide by adopting a high-energy ball milling method to prepare sulfur-containing functional group graphene; the preparation method comprises the following steps: dissolving 4, 4 '-diaminodiphenyl ether and pyromellitic dianhydride in N, N-dimethylformamide to prepare a polyamide acid solution; adding sulfur functional group-containing graphene and lithium salt into the polyamide acid solution to form a spinning solution; preparing the spinning solution into a sulfonated polyamide acid nanofiber membrane through electrostatic spinning equipment; and carrying out high-temperature imidization treatment on the sulfonated polyamide acid nanofiber membrane to obtain the polyimide fiber diaphragm. The problems of lithium dendrite puncture risk caused by poor heat resistance, insufficient electrolyte wettability and uneven pore structure of a polyolefin diaphragm and high impedance caused by low mechanical strength and poor interfacial compatibility of a nanofiber diaphragm in the prior art are solved.

The application discloses a kind of high-temperature-resistant polyphenyl sulfone composite and preparation method thereof, belong to polyphenyl sulfone composite technical field, first by ultrasonic dispersion and complexation reaction preparation tannic acid-iron complex modified molybdenum disulfide, iron-containing carbon-coated molybdenum disulfide is obtained by high-temperature carbonization, so it has good stability and lubricity, then using 6-hydroxy-2-naphthoic acid, 4,4'-diphenyl ether dicarboxylic acid and 4,4'-dihydroxy diphenyl sulfone and other monomers in acetic anhydride system are prepared by melt polycondensation and solid phase condensation reaction, modified aromatic liquid crystal polyester is prepared, and fiber network is formed, finally, iron-containing carbon-coated molybdenum disulfide and modified aromatic liquid crystal polyester and polyphenyl sulfone resin are melt blended in double-screw extruder, and high-temperature-resistant polyphenyl sulfone composite is obtained, effectively solve the problem that the lubricating property of polyphenyl sulfone material is reduced under high temperature and high humidity environment, and the mechanical toughness is attenuated, suitable for high-end medical instrument application needing long-term tolerance multiple sterilization cycle.

The application discloses a high surface capacity self-supporting porous carbon supercapacitor electrode material and a preparation method and application thereof, and the preparation method comprises the following steps: taking diaminodiphenyl ether and pyromellitic dianhydride as monomers, and polymerizing in N,N-dimethylformamide in the presence of sodium carbonate to obtain a modified polyamide acid colloid; a nickel mesh is immersed in the colloid, vacuum soaking and hanging drying are performed, and a polyamide acid-nickel mesh three-dimensional composite material is formed; then, a programmed temperature thermal imidization treatment, high-temperature carbonization, alkali activation and acid pickling procedures are sequentially performed to obtain the electrode material; the application realizes the integration of the current collector, the conductive network and the active material, and exhibits high surface capacity, excellent rate performance and cycle stability; the process has strong controllability, the raw material cost is relatively low, and an advanced electrode material solution scheme is provided for the preparation of high-performance supercapacitors.

The application discloses a kind of lithium ion battery separators and preparation methods thereof, it is related to battery separator technical field.The application is prepared when lithium ion battery separator, with dianhydride DOPO, 4,4'-diamino diphenyl ether, 2-vinyl-4,6-diamino-1,3,5-triazine is reacted, and polyamide acid microspheres are prepared by electrostatic spraying;Polyethylene is sequentially reacted with acrylamide, propenyl-1,3-sulfonic acid lactone, and modified polyethylene is prepared;With mercaptopropyl trimethoxysilane, hydroxylated boron nitride is reacted, and modified boron nitride is prepared;With polyvinylpyrrolidone, modified polyethylene, polyamide acid microspheres, modified boron nitride is mixed, and film is hot-pressed, and lithium ion battery separator is prepared.The lithium ion battery separator prepared by the application has excellent ion conductivity, flame retardancy and mechanical properties.

This invention relates to a high-wear-resistant modified phenolic resin material for guide rings and its preparation process. The high-wear-resistant modified phenolic resin material for guide rings is prepared from the following raw materials in parts by weight: 100 parts linear phenolic resin, 20-35 parts polyimide prepolymer, 20-45 parts reinforcement, 10-25 parts wear-resistant filler, 1-3 parts silane coupling agent, and 8-12 parts curing agent; the polyimide prepolymer is prepared by reacting pyromellitic dianhydride with 4,4'-diaminodiphenyl ether; the high-wear-resistant modified phenolic resin material for guide rings prepared by this invention exhibits excellent high-temperature wear resistance.

The invention discloses an adsorption and purification tower for diaminodiphenyl ether production tail gas treatment, and relates to the technical field of adsorption and purification towers, the adsorption and purification tower comprises a tower body, the interior of the tower body is fixedly communicated with an exhaust pipe, the interior of the exhaust pipe is fixedly communicated with an air extractor, the interior of the tower body is fixedly communicated with a spraying pipe, and the spraying pipe is fixedly communicated with an exhaust pipe. The adsorption purification tower comprises a tower body, three observation windows are fixedly mounted on the inner wall of the tower body, a discharge treatment mechanism is arranged in the tower body, and the discharge treatment mechanism comprises a discharge unit. According to the purification filling material discharging device, the used purification filling material can be automatically discharged in the tower body, the purpose of automatically discharging the purification filling material is achieved, layered discharging of the purification filling material at different height positions in the tower body can be achieved, and the flexibility and efficiency of discharging are further improved; and normal use and single-layer discharge of filling materials in different layers are ensured.

To provide an active energy ray-curable overprint varnish composition capable of reducing generation of odor and migration from a formed varnish film while maintaining performance as a varnish composition.SOLUTION: The photosensitive resin composition contains a monomer which is a compound having two or more ethylenically unsaturated bonds and a photopolymerization initiator, wherein the monomer contains a monomer A having four or more ethylenically unsaturated bonds and a monomer B having an alkylene oxide-modified bisphenol A skeleton or the like and having two ethylenically unsaturated bonds. In the varnish composition, the photopolymerization initiator is selected from (A) a compound having a diphenylmethane skeleton, (B) a compound having a morpholine skeleton and a fluorene skeleton, and (C) a compound having a diphenyl ether skeleton, and in the monomer, the proportion of the monomer A is 10 to 55% by mass and the proportion of the monomer B is 10 to 46% by mass.SELECTED DRAWING: None

The utility model discloses a kind of auxiliary partition and fixing structure for transformer, it is related to transformer technical field.The utility model includes transformer body, the transformer body top is provided with phase interval board subassembly, the phase interval board subassembly includes insulating plate and insulating support frame, the phase interval board subassembly one side is provided with clamp piece, the clamp piece quantity is two, and side beam subassembly is provided between two the clamp piece.The utility model improves insulating partition effect by adopting diphenyl ether plate to replace traditional epoxy resin, reduces phase-to-phase insulation distance, saves space, is conducive to the miniaturization development of transformer, while enhancing impact resistance, prolongs the service life of transformer, the " mouth " frame of side beam subassembly and clamp piece bolt lock, constitute closed loop stress system, disperse horizontal vibration stress, restrain clamp piece end deformation, guarantee stress uniform, increase the load bearing of coil, improve transformer overall stability and reliability.

The invention discloses a mildew-proof composite board and a preparation method thereof. The board is a composite board prepared by coating a single board with a mildew-proof resin composition and then hot-pressing, curing and molding a plurality of layers of single boards. The mildewproof composite board is good in mildewproof performance and mechanical performance, N, N, N ', N'-tetraglycidyl-4, 4 '-diaminodiphenyl ether epoxy resin and bisphenol A epoxy resin are adopted as thermocuring resin, the toughness of the material is improved, 4, 4'-bis (4-aminophenoxy) diphenyl sulfone and methylhexahydrophthalic anhydride are adopted as curing agents, and the toughness of the material is improved. The tributyl tetradecyl phosphorus chloride and the disodium octaborate tetrahydrate are adopted, so that the anti-mildew performance of the material is improved.

The invention discloses a flame-retardant environment-friendly HIPS (High Impact Polystyrene) material for an electric control box as well as a preparation method and application of the flame-retardant environment-friendly HIPS material. The flame-retardant environment-friendly HIPS material comprises the following raw materials in parts by mass: 40-80 parts of HIPS environment-friendly resin; 10 to 30 parts of brominated flame retardant; 10-25 parts of antimony trioxide and 1-5 parts of a stabilizer; the brominated flame retardant comprises one or more of decabromodiphenyl ether, octabromodiphenyl ether, octabromobisphenol A, decabromodiphenyl ethane, a brominated epoxy oligomer and poly (decabromodiphenyl); the stabilizer is prepared from one or more of hindered amine, hindered benzoate, benzotriazole, o-hydroxybenzophenone and benzylidene malonate; the stabilizer is prepared from one or more of hindered amine, hindered benzoate, benzotriazole, o-hydroxybenzophenone and benzylidene malonate; the material disclosed by the invention is excellent in flame retardant property, resistant to degradation and yellowing and good in glossiness.