127results about How to "Promote wetting" patented technology

The invention discloses a water-based lithium battery positive electrode adhesive, a preparation method and application. The adhesive is of a single-layer or multi-layer shell core-shell structure formed by polar monomers such as acrylic acid, acrylate monomers, cross-linking monomers, self-emulsifying monomers and water through core-shell emulsion polymerization; by controlling the mass percent of acrylate monomers, polar groups and the like in the core layer structure and the shell layer structure and selecting proper types and dosages of cross-linking monomers and self-emulsifying monomers, the adhesive has proper surface tension, shows excellent adhesion and wettability to the current collector, has high peel strength, and is suitable for the current collector. According to the present invention, the lithium ion battery pole piece has the low glass-transition temperature so as to ensure the high toughness, the high surface density, the excellent electrolyte resistance, the excellent electrical property, the excellent coating property and the like of the pole piece, and the raw materials are all non-fluorine materials so as not to produce hydrogen fluoride and other harmful gases during the lithium battery recovery; water is used as a solvent, recycling is not needed, environment friendliness and low carbon are achieved, the manufacturing process is simplified, and the application range is widened.

The invention relates to the technical field of clock dial plate welding, and discloses a clock dial plate welding device which comprises a welding seat, a rotating shaft is rotationally connected to the welding seat, a clamping seat is fixed to the upper end of the rotating shaft, and a dial plate body is placed in the clamping seat; a plurality of welding positioning holes which are circumferentially distributed at equal intervals are formed in the dial plate body, a plurality of clamping assemblies which are circumferentially distributed at equal intervals and used for fixing the dial plate body are arranged on the clamping seat, a first servo electric cylinder is arranged at one end of the welding seat, and a mounting plate is fixed to the upper end of the first servo electric cylinder; a welding gun is fixed on the mounting plate; in the whole welding process, the situation that the welding precision is affected due to position deviation in the welding process can be avoided, the positioning frequency can be reduced, the welding speed is increased, the time consumed by welding is greatly saved, time and labor are saved, convenience and rapidness are achieved, and the welding efficiency is improved.

The invention belongs to the field of electrical electronics and advanced non-ferrous metal additive manufacturing, and particularly relates to a preparation method of a laser additive manufacturing copper alloy-tungsten copper composite electrical contact, which comprises the following steps of: preparing a nickel or nickel alloy coating on a copper alloy base material by adopting coaxial powder feeding laser cladding to serve as a middle layer, and then preparing a tungsten copper coating by laser cladding to obtain the copper alloy-tungsten copper composite electrical contact. The composite electrical contact is composed of a pure copper or copper alloy base material layer, a pure nickel or nickel alloy coating and a tungsten copper coating in sequence. The electrical contact obtained by the invention has relatively high electrical conductivity and thermal conductivity, and also has good arc ablation resistance; the copper alloy-tungsten copper electrical contact is prepared by adopting the laser cladding technology, so that the production cost can be effectively reduced, the production efficiency is improved, meanwhile, later maintenance and repair are facilitated, and the method is green and environment-friendly.

The invention discloses a hot melt adhesive suitable for a water-based coating waterproof coiled material, the waterproof coiled material sequentially comprises a base material, a connecting layer and an anti-sticking coating, the connecting layer is formed by the hot melt adhesive, the anti-sticking coating is formed by a water-based resin emulsion, the hot melt adhesive comprises a plasticizer, tackifying resin, functional resin and a thermoplastic elastomer, and the anti-sticking coating is formed by the plasticizer, the tackifying resin, the functional resin and the thermoplastic elastomer. The functional resin contains one or more of abietic acid, pinolenic acid and pimaric acid, the content of carboxyl in the functional resin is 0.90 mmol / g-2. 80 mmol / g, and carboxyl in the hot melt adhesive is used for forming chemical bond combination with amino in the water-based resin emulsion. The hot melt adhesive disclosed by the invention has a low surface contact angle and high surface energy, the resin emulsion of the anti-sticking coating can be well wetted on the surface, and meanwhile, the resin emulsion and the coating have stable bonding force, so that a full-sticking structure is ensured to be formed after a water-based coating type waterproof roll is constructed and poured with concrete.

The invention provides a modified silicone oil agent with a comb-shaped structure as well as a preparation method and application thereof, the oil agent comprises an amino modified silicone oil emulsion and an epoxy modified silicone oil emulsion, and the mass ratio of the amino modified silicone oil emulsion to the epoxy modified silicone oil emulsion is 1: (0.5-1.5); the amino modified silicone oil emulsion and the epoxy group-containing modified silicone oil emulsion have comb-shaped structures, main chains of the amino modified silicone oil and the epoxy group-containing modified silicone oil are acrylate polymers, and branch chains are amino short silane chains or epoxy group-containing short silane chains; the preparation method of the oiling agent comprises the following steps: respectively preparing amino short-chain silicone oil and epoxy group-containing short-chain silicone oil, and then respectively synthesizing amino modified silicone oil emulsion and epoxy group-containing modified silicone oil emulsion. The acrylate polymer is introduced, the content of organic silicon is reduced, the viscosity of the oiling agent is small, carbon fibers are conveniently oiled, a protective film is formed on the fibers, friction and abrasion between the fibers are prevented, and therefore the surface defects of the carbon fibers are reduced.

The halogen-free precoating soft soldering flux for the nickel plating layer comprises the following components in percentage by weight: 10%-50% of modified rosin, 1.0%-10% of an active agent, 0.5%-2.0% of a surfactant, 1.0%-3.0% of an antioxidant, 1.0%-3.0% of a corrosion inhibitor, 1.0%-3.0% of an additive and the balance of a solvent, the coating method comprises the steps that scaling powder is prepared according to the original component materials, the water bath temperature is constant, a soldering lug is flatly laid on a polytetrafluoroethylene plastic plate to be preheated for half a minute at the temperature of 90-100 DEG C, a proper scaling powder solution for constant-temperature pre-coating is dropwise added to the soldering lug, heating and drying are conducted after uniform brushing, cooling is conducted to the room temperature after drying, and then the formed soldering lug pre-coated with the scaling powder is obtained. The problems that when an existing scaling powder is used for pre-coating a soldering lug, halogen such as Cl and Br is contained, coating is difficult, and adhesion occurs due to mutual contact and pressing of scaling powder coatings are solved. The soldering flux is halogen-free, has proper activity, does not stick to hands after being coated and dried, and is short in welding time, good in wettability and easy to clean; and nickel and nickel alloy can be well welded.

The invention discloses a soldering flux for nickel-plated alloy soft soldering precoating. The soldering flux comprises the following components in percentage by weight: 10%-50% of rosin, 1.0%-10% of organic acid, 2.0%-4.0% of organic amine, 0.5%-2% of inorganic metal salt, 0.5%-2.0% of an activity enhancer, 0.5%-2.0% of a surfactant, 0.5%-2.0% of a corrosion inhibitor, 0.1%-2.0% of an additive and the balance of a solvent, the coating method comprises the steps that scaling powder is prepared according to the original component materials, the water bath temperature is constant, a soldering lug is flatly laid on a polytetrafluoroethylene plastic plate to be preheated for half a minute at the temperature of 90-100 DEG C, a proper scaling powder solution for constant-temperature pre-coating is dropwise added to the soldering lug, heating and drying are conducted after uniform brushing, cooling is conducted to the room temperature after drying, and then the formed soldering lug pre-coated with the scaling powder is obtained. The problems that an existing soldering flux is not easy to coat when being used for pre-coating the soldering lug, soldering flux coatings are adhered due to mutual contact and pressing, and powder falls off when the soldering lug coated with the soldering flux is cut are solved. The flux is short in welding time and good in wettability, residues after welding are easy to clean, and meanwhile welding of various metal materials such as nickel and nickel alloy and aluminum and aluminum alloy can be completed.

The invention provides an oiling agent for carbon fibers as well as a preparation method and application thereof, the oiling agent comprises an amino modified silicone oil emulsion and an epoxy modified silicone oil emulsion, and the mass ratio of the amino modified silicone oil emulsion to the epoxy modified silicone oil emulsion is 1: (0.5-1.5); the amino modified silicone oil and the epoxy group-containing modified silicone oil are comb-shaped in structure, main chains of the amino modified silicone oil and the epoxy group-containing modified silicone oil are acrylate polymers, and branch chains of the amino modified silicone oil and the epoxy group-containing modified silicone oil are amino short silane chains or epoxy group-containing short silane chains; the preparation method of the oiling agent comprises the following steps: firstly, preparing an acrylate prepolymer by a solvent polymerization method, then respectively preparing amino modified silicone oil and epoxy group-containing modified silicone oil, and finally respectively carrying out water emulsification. The acrylate polymer is introduced into the oiling agent provided by the invention, so that the silicon content is reduced, the viscosity of the oiling agent is reduced, carbon fibers are conveniently oiled, a protective film is formed on the fibers, friction and abrasion between the fibers are prevented, and the surface defects of the carbon fibers are reduced.

The invention provides an aluminum ring-pull can cover material passivating agent for water-based paint. The aluminum ring-pull can cover material passivating agent is prepared from the following raw materials in percentage by weight: 0.5-5% of a chromium source, 1-5% of a reducing agent, 1.5-6% of a film-forming agent, 1-5% of a silane coupling agent and the balance of deionized water. The invention is applied to water-based paint, the dyne value of a passive film is increased, a surface on which the water-based paint can be quickly wetted and spread is provided, the stability of a passivated film-forming structure is improved, and the abnormal coating performance of the water-based paint caused by the unstable structure of the passive film in the long-term use process is avoided. And the compactness and wear resistance of a passivation film are improved, and the problem that after passivation treatment, a passivation layer is damaged and abraded after the aluminum plate strip passes through a conveying roller and a steering roller is solved. Meanwhile, the passivation film-forming temperature is reduced, and it is guaranteed that a compact passivation film is rapidly formed under the condition that an existing technology is changed and energy consumption is not increased through passivation.

The invention relates to the technical field of anticorrosive paint, and particularly discloses water-based anticorrosive paint based on an aluminum alloy base layer and a preparation process of the water-based anticorrosive paint. The invention discloses a water-based anticorrosive coating based on an aluminum alloy base layer. The water-based anticorrosive paint is prepared from the following raw material components: 55 to 70 parts of water-based acrylic acid modified epoxy alkyd resin, 4 to 10 parts of dioctyl phosphate acyloxy titanate, 15 to 24 parts of an inorganic nano material, 1 to 3 parts of polydimethylsiloxane, 2 to 6 parts of ethyoxyl modified polytrisiloxane, 2 to 5 parts of a passivating agent and 70 to 120 parts of water. The water-based anticorrosive paint has the advantages of corrosion resistance, high binding power and good mechanical property, and can play a stable protection role when being coated on the surface of the aluminum alloy, so that the service life of the aluminum alloy is prolonged.

The invention belongs to the technical field of fire extinguishing agent materials, and provides an aluminum silicate gel fire extinguishing agent for lithium battery fire disasters and a preparation method of the aluminum silicate gel fire extinguishing agent. The fire extinguishing agent is composed of a modified aluminum silicate gelling agent, a modified emulsion, a cross-linking agent, an adsorbent, a flame retardant, a foam stabilizer and a foaming agent, a phosphate group is introduced into the aluminum silicate gelling agent, so that the aluminum silicate gelling agent has better free radical capturing capacity, hydroxyl free radicals and hydrogen free radicals in flames are eliminated, and the flame extinguishing effect is improved. According to the present invention, the modified emulsion is added, such that the good fire extinguishing effect can be provided, the re-combustion phenomenon of the lithium ion battery can be effectively prevented, the long-chain alkyl group and the epoxy group are introduced into the modified emulsion so as to improve the lipophilicity and the hydrophilicity of the emulsion, effectively reduce the surface tension, and improve the wetting effect on the surface of the lithium battery; the fire extinguishing effect is further enhanced, and meanwhile, the activated carbon adsorbent can well adsorb generated harmful gas when the lithium ion battery is on fire.

The invention belongs to the technical field of conductive materials, and particularly discloses graphene conductive paste and a preparation method and application thereof. The graphene conductive paste is prepared from the following raw materials in parts by weight: 1 to 10 parts of graphene, 0.5 to 10 parts of conductive carbon black, 0.5 to 1 part of a dispersing agent, 0.5 to 2 parts of a stabilizer, 80 to 90 parts of a solvent, 0.5 to 1.5 parts of a surfactant, 1 to 5 parts of a modified silane coupling agent and 0.5 to 1 part of an adhesive, the molecular structure of the modified silane coupling agent contains fluorine element and phosphorus element, and also contains phenolic hydroxyl group, and various groups have synergistic interaction, so that the performance of the graphene conductive paste is improved together; the invention also discloses a preparation method and application of the graphene conductive paste. The graphene conductive paste provided by the invention has excellent conductivity, cohesiveness, corrosion resistance, dispersity and thermal stability, and can be widely applied to preparation of lead-acid batteries, sodium-ion batteries and lithium-ion batteries.

The invention relates to the technical field of soldering flux processing, in particular to a high-humidity type halogen-free soldering flux and a preparation method. The high-humidity type halogen-free scaling powder is prepared from, by weight, 20%-30% of a film-forming agent, 4%-8% of an active agent, 5%-10% of palm wax, 0.5%-1% of a corrosion inhibitor, 2%-5% of a thixotropic agent, 0.2%-0.6% of dimethylamine hydrochloride, 1%-2% of chlorinated rare earth salt, 5%-10% of a modifier and the balance solvent, and the modifier is obtained by mixing castor oil, octadecanamide and glycerin. The wettability of the halogen-free soldering flux prepared through the compound formula in the welding process is greatly improved, a molten pool is more stable, and welding defects are reduced. Meanwhile, due to the introduction of the modifier, especially the mixture of castor oil, octadecanamide and glycerol, the thermal stability of the scaling powder is improved, the risk that a traditional active agent is decomposed at high temperature is reduced, release of harmful gas and formation of residues are reduced, and the welding quality is guaranteed.

The invention provides a multi-field auxiliary metal fuse additive melt directional transfer device and method. The device comprises a laser energy source system, a metal wire feeding system, a constant magnetic field system, an electric field system, a coaxial protective gas system, an ultrasonic generator, a multi-axis motion platform and a forming substrate. The forming base plate is fixedly installed above the multi-axis motion platform, and multi-degree-of-freedom motion of the forming base plate in space is achieved through the multi-axis motion platform. The laser energy source system is fixed above the forming substrate, so that laser emitted by the laser energy source system is irradiated to the upper surface of the forming substrate; the metal wire feeding system is fixed to the side face of the laser energy source system and conveys metal wires to the size range of laser spots. The constant magnetic field system, the electric field system and the ultrasonic generator are respectively fixed on the metal wire feeding system; the multi-axis motion platform comprises four degrees of freedom of X-axis motion, Y-axis motion, Z-axis motion and platform rotation. A specific field is applied to the end of the metal wire by distributing the installation position of the auxiliary field.

The invention discloses a method for brazing a graphite / copper dissimilar material by using diamond particle reinforced AgCuInTi composite brazing filler metal, and relates to a method for brazing the graphite / copper dissimilar material. The invention aims to solve the technical problem that a reliable joint cannot be obtained due to great residual stress generated in the joint by using a direct brazing mode because the difference between the thermal expansion coefficients of graphite and copper is great. The AgCuInTi brazing filler metal and the diamond particles are evenly mixed in a ball milling mode to prepare the composite brazing filler metal, and the composite brazing filler metal is used for brazing graphite / copper dissimilar materials under vacuum. According to the method, reliable connection of the graphite / copper dissimilar materials is successfully achieved, the room-temperature shear strength of the connector can reach 30 MPa, the problem that the residual stress in the dissimilar material connector is large is solved, and application of the graphite / copper dissimilar material component in the fields of nuclear power, radiation protection and the like can be achieved.

This invention discloses a method for preparing a Pt / C catalyst by vacuum impregnation with an ionic liquid and its application. First, a carbon support is mixed with water and alcohol, ball-milled, and then mixed with nitric acid to obtain an acid-treated carbon support. Next, a precursor solution is prepared by mixing a platinum salt, an organic solvent, a surfactant, and water, and then an imidazole ionic liquid is added to it in portions to obtain a precursor solution containing the ionic liquid. This solution is mixed with the acid-treated carbon support and vacuum ball-milled to obtain a mixed slurry. This slurry is then vacuum freeze-dried to obtain a freeze-dried powder. Reduction and heat treatment are then performed to obtain the ionic liquid-doped Pt / C catalyst. The catalyst is then coated onto both sides of a proton exchange membrane to form a catalytic layer. Through this method, this invention not only effectively inhibits the aggregation, migration, and ripening of platinum particles during electrochemical processes, thereby significantly improving the catalyst's durability, but also enhances the catalyst's proton conductivity under low humidity conditions.

The present invention relates to the field of surfactant technology, and discloses a long-acting bactericidal surfactant and its application in washing powder. The present invention performs Schiff base condensation reaction on DL-tyrosine and glutaraldehyde, and then performs esterification reaction with alkyl acyl chloride compound, and then reduces with sodium borohydride, and undergoes epoxy ring-opening reaction in 2,3-epoxypropyltrimethylammonium chloride to obtain a novel long-acting bactericidal surfactant. The long-acting bactericidal surfactant contains a diquaternary ammonium salt antibacterial group, and the minimum inhibitory concentration MIC for bacteria such as Escherichia coli is only 0.391ug / mL. When the mass concentration of the long-acting bactericidal surfactant of the present invention is 0.2-2g / L, the surface tension of the solution is only 58.1-12.0mN / m, and the lower the surface tension, the better the wetting, emulsification and dispersibility, which is conducive to the practical application of surfactants in washing powder, laundry detergent, etc.

The invention discloses an aviation spray auxiliary agent for improving the rain wash resistance of plant protection fog drops and application of the aviation spray auxiliary agent. The invention provides a composition for plant protection aviation spraying. The composition comprises sodium dodecyl benzene sulfonate and polyethylene glycol monostearate. The invention also provides a plant protection aviation spray auxiliary agent which comprises the composition. The plant protection aviation spray auxiliary agent provided by the invention can significantly improve the rain wash resistance of fog drops on crop leaves during aviation pesticide application, thereby solving the key problems that the window period of pesticide application in rainy seasons in the south is short, and the pesticide liquid is very easy to wash away by rain water due to frequent heavy rainfall.

The present invention relates to the field of optical adhesive technology, and in particular to an OCA optical adhesive, a preparation method thereof, and a touch screen. The OCA optical adhesive comprises the following components by weight: 85-95 parts of a modified silicone prepolymer, 5-15 parts of a crosslinking agent, 0.01-0.1 parts of a first photoinitiator, and 0.1-2 parts of a functional additive; the modified silicone prepolymer is mainly prepared by the following components by weight: 30-60 parts of a terminal vinyl siloxane, 40-70 parts of a monomer, 0.01-1 parts of a second photoinitiator, and 0.002-0.2 parts of a chain transfer agent; the functional additive comprises: (a) tetrabutylammonium bromide; (b) other optional additives, the other additives being selected from at least one of aluminum acetylacetonate and triphenylphosphine. The present invention uses silicone to modify the main resin, and at the same time introduces a specific functional additive into the system, which can significantly improve the bonding performance and ensure the lamination performance when bonding a low surface energy substrate.

The invention discloses a tin-zinc-copper powder ultrafine powder batch preparation process, and relates to the technical field of metal powder preparation, and the tin-zinc-copper powder ultrafine powder batch preparation process comprises the following steps: dissolving tin salt, zinc salt and copper salt in deionized water, adding a complexing agent, and uniformly mixing to obtain a mixed metal salt aqueous solution; dissolving a rosin-based polyamine hyperbranched dispersant in an organic solvent to serve as an oil phase; slowly adding a mixed metal salt aqueous solution into the oil phase, and uniformly dispersing to obtain a water-in-oil microemulsion system; dropwise adding a reducing agent solution, and continuously carrying out heat preservation reaction for 0.5-3 hours after dropwise adding is finished, so as to obtain slurry containing alloy particles; and carrying out demulsification treatment, centrifugal separation, repeated washing and drying to obtain the surface-modified tin-zinc-copper superfine powder. Superfining of particles is achieved through confinement growth, synchronous co-deposition of multi-component elements is guaranteed, a homogeneous alloy phase is formed, component segregation is avoided, and a protective layer formed on the surface of the powder in situ endows the material with excellent oxidation resistance and good weld-aid wettability.

The invention discloses a micro-nano hybrid SiCp reinforced aluminum matrix composite cylindrical part and a preparation method thereof, and belongs to the technical field of plastic processing of aluminum alloy materials. According to the preparation method provided by the invention, micron SiCp, nano SiCp and aluminum powder are mixed and then subjected to high-energy ball milling, the mixture and aluminum alloy are subjected to high-temperature dissolution and ultrasonic treatment, then die casting and homogenization treatment are carried out, and then continuous forging, backward extrusion and T6 heat treatment are carried out, so that the micro-nano mixed SiCp reinforced aluminum matrix composite cylindrical part is obtained. According to the micro-nano mixed SiCp reinforced aluminum matrix composite cylindrical part prepared through the preparation method, nanoscale SiCp and micron SiCp can be embedded with aluminum powder, the strength and hardness of crystals are improved, and then the mechanical property of an aluminum matrix composite is improved; by means of continuous forging and backward extrusion thermal deformation, as-cast defects such as shrinkage porosity and air holes can be eliminated, grain refinement is achieved, reinforcement distribution is improved, and therefore the cylindrical part is endowed with excellent mechanical performance.

The invention provides a combined clearing agent, hot rolling oil and application of the combined clearing agent and the hot rolling oil. The combined clearing agent comprises the following components in parts by weight: 0.1-5 parts of a component A and 0.1-15 parts of a component B, the component A is prepared from polyethyleneimine and an etherate of C8-C18 fatty alcohol; and the component B comprises fatty alcohol polyether phosphate and / or ammonium phosphate. The composite detergent provided by the invention can improve the dispersing performance of the aluminum powder in the rolling emulsion, maintain good wetting and stable dispersion of the aluminum powder in the rolling emulsion, and avoid deposition and scaling; the efficiency of the oil skimming or filtering procedure can be improved to the maximum extent, operation is easy and convenient, oil skimming or filtering operation can be repeatedly conducted, and the low-loss purification process is achieved.

The invention belongs to the field of electronic materials, and relates to glass-coated gold powder and a preparation method and application of gold conductor paste. The glass-coated gold powder comprises gold powder and a coating layer located on the surface of the gold powder. The coating layer is prepared from PbO-Bi2O3-SiO2-CuO glass, and the coating layer is prepared from The preparation method comprises the following steps: mixing, stirring and heating TEOS and metal salt in a solvent to obtain sol; uniformly mixing the pretreated gold powder with the sol, and sequentially carrying out evaporation concentration and drying to obtain gel-coated gold powder; preparing a reaction mixture containing the gel-coated gold powder and water at the same time, performing heat treatment, and performing post-treatment to obtain the glass-coated gold powder; the conductive paste is used for preparing the conductive paste for electronic packaging. The glass-coated gold powder prepared by the preparation method disclosed by the invention is high in adhesive force with a substrate and good in sintering shrinkage matching property.

The invention belongs to the field of electrolyte membranes, and particularly relates to a polymer electrolyte membrane and a preparation method thereof. The method comprises the following steps: 1) uniformly mixing a heterocyclic compound and dihydric alcohol A, carrying out a thermal reaction, sequentially adding dihydric alcohol B and a catalyst, uniformly mixing, carrying out an esterification reaction, and cooling to obtain a base material; and 2) mixing a linear polyether compound and an organic lithium salt into the substrate in an inert gas atmosphere, adding a dispersing agent, uniformly mixing, injecting into a thin film mold, standing for reaction, and drying to obtain the polymer electrolyte membrane. The polymer electrolyte membrane prepared by the invention is short in lithium ion transportation path, high in transmission efficiency and good in ionic conductivity, meanwhile, the surface of the polymer electrolyte membrane is provided with an array structure, the polymer electrolyte membrane can be quickly wetted, excellent liquid absorption rate is shown, and good dimensional stability and performance stability are kept under high-temperature and pressure conditions.

The present application belongs to the technical field of preparation of multi-curved surface silicon carbide, and discloses a preparation method of reaction sintering multi-curved surface silicon carbide whole plate, comprising: mixing 100 parts of alpha-SiC powder, 15-20 parts of composite carbon source, 1-2 parts of silicon carbide fiber, 2.3-3.8 parts of dispersing agent, 8-12 parts of water-soluble phenolic resin, 2-4 parts of additive and 42-46 parts of water according to weight parts, pre-dispersing, ball-milling, spray granulating, pressing into multi-curved surface green body; the green body is stacked with graphite support parts and filled with graded silicon particles, and is subjected to step-by-step degreasing and step-by-step reaction sintering under vacuum argon, and then is cooled after temperature control to obtain the product. Through the synergistic effect of formula control of composite carbon source, specific ternary additive and fine sintering process, the technical problem of sintering cracking and cracking of multi-curved surface whole plate is eliminated, and the product density, bending strength and fracture toughness are effectively improved.

The invention provides an electrolyte and a secondary battery. The electrolyte comprises an organic solvent, a lithium salt, a film-forming additive and a metal corrosion inhibitor, the mass ratio of the metal corrosion inhibitor in the electrolyte is 0.001-2%; the metal corrosion inhibitor is a benzotriazole compound and / or a sulfonate compound; the chemical formula of the sulfonate compound is R-SO3M, R is C1-C16 straight-chain alkyl or phenyl-substituted C1-C12 straight-chain alkyl, and M is selected from any one of Li, Na and K. The invention further discloses a preparation method of the sulfonate compound. By adding the metal corrosion inhibitor according to the type and the mass ratio into the electrolyte, a protective layer can be formed on the surface of the steel shell of the cylindrical battery, so that the contact between acidic byproducts in the battery and the surface of the steel shell is isolated, the corrosion of the steel shell is inhibited, and the storage performance, the cycle life and the safety of the battery are further improved.

The invention relates to a cathodic disbonding resistant coating which comprises a component A and a component B. The mass ratio of the component A to the component B is 20: (3-5). The component A comprises the following components in parts by weight: 25-31 parts of bisphenol A epoxy resin; 4-5 parts of a reactive diluent; 0.5 to 1.5 parts of an anti-sagging auxiliary agent; 0.3 to 0.8 part of a dispersant; 8 to 12 parts of titanium dioxide; 2-5 parts of iron oxide red; 5-8 parts of an anti-rust pigment; 2-3 parts of polyamide wax; 28-37 parts of a functional filler; the component B is phenolic aldehyde amine resin; the cathodic disbonding resistant coating disclosed by the invention is simple in preparation method, excellent in corrosion resistance, capable of being thickly coated and suitable for a long-term application environment.

The application discloses a pesticide synergist and a preparation method thereof. The pesticide synergist comprises a silanol-initiated polyether shown in formula I, an inositol phosphate-initiated polyether shown in formula II, an alcohol auxiliary agent and water. The silanol-initiated polyether shown in formula I and the inositol phosphate-initiated polyether shown in formula II are synergized, so that the adhesion, spreading, penetration and retention capacity of pesticide droplets on a target surface are significantly enhanced, and the utilization rate of the pesticide is effectively improved. The product has the advantages of low toxicity, environmental friendliness, multi-functional synergism, wide compatibility and the like, the preparation process is simple and stable, and the product is suitable for industrial production.

The application provides a UV white ink and a preparation method thereof. The preparation raw materials of the UV white ink include, in parts by weight, 3-15 parts of silicone-modified acrylate prepolymer, 30-90 parts of monofunctional monomer, 1-10 parts of bifunctional monomer, 3-10 parts of photoinitiator, 1-15 parts of titanium white, 0.1-5 parts of dispersant and 0.1-5 parts of auxiliary agent. The silicone-modified acrylate prepolymer is used to improve the flexibility, smoothness and water resistance of the ink layer, and the specific functional monomer compound system is used to inhibit the curing shrinkage and enhance the adhesion, so that the UV white ink with excellent comprehensive performance is obtained, and is suitable for the inkjet printing of silica gel labels.

The invention discloses a recyclable bio-based flame-retardant composite sleeper and a preparation method thereof. The raw materials of the composite sleeper are component A and component B in a mass ratio of 1:1; the component A includes: bio-based polyol; self-catalytic epoxy-modified polyol; ultraviolet absorber; antioxidant; foam stabilizer; diselenide diol; deionized water; the component B includes: isocyanate; adhesion promoter A; adhesion promoter B; the preparation method is: heating the component A and the component B respectively, then mixing the component A and the component B evenly and injecting them into a mold with long glass fiber, molding, and cutting to obtain the recyclable bio-based flame-retardant composite sleeper. The recyclable bio-based flame-retardant composite sleeper prepared by the invention has the characteristics of high flame retardancy, low density, high bending strength, high bending elastic modulus, and excellent impact resistance, and can be recycled and reused through chemical degradation, effectively avoiding environmental pollution.