6386 results about "Fluorine containing" patented technology

The present invention discloses a water-based emulsion of PHA, PBAT and PVOH and its application in paper-based barrier coatings. This emulsion is prepared by first melt-blending PHA and PBAT at 150-170 °C and then dispersing them into an aqueous PVOH solution at 80-95 °C. Plasticizers, cross-linking agents and surfactants can be added to improve the performance. After coating on paper and drying at 80-150 °C, a barrier film with a Cobb value of 10-15 g / m² and a Kit ≥ 10 grade is formed. Compared with traditional PE film laminating or fluorine-containing coatings, this system is more environmentally friendly and recyclable; PVOH dissolves in pulping water, PHA and PBAT are easily separated, and fibers can be efficiently recovered; in composting, soil and marine environments, PHA and PBAT have extensive biodegradability and are superior to PLA which is difficult to recycle and requires industrial composting. It is applicable to food, industrial, special packaging and agricultural paper products.

A production method for an aqueous dispersion according to the present invention comprises polymerizing a first monomer that includes tetrafluoroethylene in the presence of a compound represented by formula (X) and a polymerization initiator under conditions in which an aqueous medium is present but an emulsifier that includes fluorine atoms is substantially absent to produce an aqueous dispersion that includes particles of a first fluorine-containing polymer that has an average particle diameter of no more than 500 nm and does not have a melting point.　Formula (X): C(X1)(X2)=C(X3)-L-Z. In formula (X), X1, X2, and X3 are each independently a hydrogen atom, a fluorine atom, a perfluoromethyl group, or an alkyl group, L is a single bond or a divalent linking group, and Z is an anionic group or a salt of an anionic group.

The invention provides a positive electrode, a low-temperature electrolyte, a low-temperature sodium-ion battery and a preparation method and application of the low-temperature sodium-ion battery, and belongs to the technical field of battery materials. The low-temperature sodium ion battery comprises a positive electrode, a negative electrode and a low-temperature electrolyte, wherein the positive electrode comprises a positive electrode active material, a binder, sodium salt containing fluorine and sulfur and conductive carbon; the positive electrode is improved by adding sodium salt containing fluorine and sulfur, sulfur / fluorine rich in anion derivatives can be formed on a contact interface of the positive electrode and an electrolyte to form a firm SEI film, the internal resistance of the battery is further reduced, and the coulombic efficiency of the battery during charging and discharging at normal and low temperatures is improved. The low-temperature electrolyte comprises an ester solvent and an ether additive, by adding the ether solvent, the physicochemical property of the electrolyte and the composition of an SEI film on a contact interface of an electrode and the electrolyte are optimized, the viscosity of the electrolyte at low temperature is reduced, the ionic conductivity is improved, and formation of the SEI film rich in sodium fluoride on the surface of a negative electrode can be promoted; and thus, the problem of low coulombic efficiency of battery charge-discharge cycle at low temperature is solved.

Monoorgano tin trialkoxide compounds having chemical formula R'SnX3 and containing less than about 5 mol% R'2SnX2are described. R' is an optionally substituted organic substituent having about 1 to about 20 carbon atoms and each X is independently ORf, wherein Rf is a fluorinated organic substituent having about 1 to about 20 carbon atoms. Methods for synthesizing and purifying these compounds are also provided. The monoorgano tin compounds may be used for the formation of high-resolution EUV lithography patterning precursors and are attractive due to their high purity and minimal concentration of diorgano tin impurities.

A fluoroelastomer production method including a step in which monomers A comprising a compound represented by CX1X2=CX3-L-Z, a cyano-group-containing monomer, and at least one compound selected from the group consisting of tetrafluoroethylene, fluorine-containing vinyl ethers, and fluorine-containing allyl ethers are polymerized in an aqueous medium under conditions that substantially no fluorine-atom-containing emulsifier is present.

The invention relates to the technical field of batteries, in particular to a lithium ion secondary battery. The lithium ion secondary battery comprises a negative plate and electrolyte, the negative plate comprises a negative current collector and a negative active layer located on at least one side surface of the negative current collector, the negative active layer comprises a first coating and a second coating which are arranged in the thickness direction of the negative plate, and the first coating is located between the negative current collector and the second coating; the second coating comprises first silicon carbon, and the sphericity degree of the first silicon carbon is 0.8-1; the silicon content of the first silicon carbon is 30%-60%; the average particle size of the first silicon carbon is R1, and R1 is more than 6 microns and less than or equal to 15 microns; the electrolyte comprises a fluorine-containing solvent and a nitrile compound, the fluorine-containing solvent comprises fluoroethylene carbonate and / or ethyl difluoroacetate, based on the total weight of the electrolyte, the content of the fluorine-containing solvent is w1, and w1 is larger than or equal to 30% and smaller than or equal to 70%; the content of the nitrile compound is w2, and 0.4% < = w2 < = 7%. The lithium ion secondary battery provided by the invention has good cycling stability and dynamic performance at high voltage and high temperature.

The invention relates to the field of oil well opening and killing fluid production, in particular to a solid-free well killing fluid for shale oil reservoir and a preparation method of the solid-free well killing fluid. The solid-free well killing fluid for the shale oil reservoir comprises the following raw materials in parts by mass: 50-70 parts of water, 10-30 parts of a density regulator, 3-6 parts of a copolymer tackifier, 1-3 parts of a dispersant, 3-7 parts of a filtrate reducer and 2-4 parts of a corrosion inhibitor. The copolymer tackifier is obtained by initiating copolymerization by taking acrylamide, a quaternary ammonium salt-containing monomer, an unsaturated silane coupling agent and polyethylene glycol diacrylamide as monomer free radicals, and the dispersing agent comprises gas-phase nano silicon dioxide and a fluorine-containing surfactant. Through reasonable compatibility of all the components in the formula, especially the copolymer tackifier, the effect that one agent has multiple functions is achieved, and meanwhile the high temperature resistance, the corrosion inhibition performance and the clay stability of the well killing fluid are improved.

The embodiment of the invention provides a preparation method of a negative electrode active material, the negative electrode active material, a battery and equipment. Fluorine-containing gas is used as discharge gas, and discharge current is introduced into a plasma treatment device in the process of performing vibration dispersion treatment on a porous carbon substrate through the plasma treatment device; the fluorine-containing gas is used for carrying out plasma discharge treatment on the porous carbon matrix, so that the fluorine element provided by the fluorine-containing gas can react with carbon atoms on the surface of the porous carbon matrix to form chemical bonding, and the chemical bonding uniformity between the fluorine element and the carbon atoms on the surface of the porous carbon matrix can be improved; and the preparation cost of the negative electrode active material can be reduced, and the preparation efficiency of the negative electrode active material is improved, so that the battery capacity and the cycle performance of a secondary battery prepared from the negative electrode active material disclosed by the embodiment of the invention can be improved.

The invention relates to the technical field of heavy anti-corrosion coatings, in particular to a graphene enhanced epoxy modified organic silicon resin heavy anti-corrosion powder coating. The coating is prepared from the following components in parts by weight: 42 to 58 parts of epoxidized epoxy modified organic silicon resin, 0.8 to 2.5 parts of hydroxylated graphene, 6 to 11 parts of nano zirconium dioxide coated boron nitride, 2.5 to 5.5 parts of lanthanum iso-octoate-titanate composite coupling agent, 1.5 to 3.5 parts of bis (3-triethoxysilylpropyl) disulfide, 4 to 7 parts of polyhedral oligomeric silsesquioxane, 5 to 8 parts of curing agent, 0.8 to 1.8 parts of flatting agent and 0.4 to 0.9 part of defoaming agent. 2.5 to 4.5 parts of polyether-ether-ketone micro powder and 1.2 to 2.8 parts of fluorine-containing phosphate ester. According to the invention, the resin is modified through chemical bridging, the modified graphene and the nano-coated powder are matched to construct a synergistic enhancement system, and the interface bonding is optimized by the composite coupling agent. The coating is excellent in adhesive force, corrosion resistance and mechanical property, good in processing fluidity and high in aging resistance and thermal stability, solves the problem that a traditional product is short in performance, and meets the industrial requirement.

The invention belongs to the technical field of new energy, and discloses a preparation method and application of a LiaMXb-based composite solid electrolyte membrane, and the preparation method comprises the following steps: S1, carrying out spray drying on a mixed solution in which a Li source, an M source and an ammonium salt are dissolved, placing the mixed solution in a crucible of which the bottom is paved with the ammonium salt, and annealing for 2-10 hours at 350-800 DEG C in an inert atmosphere to obtain a LiaMXb solid electrolyte; s2, mixing the LiaMXb solid electrolyte with a fluorine-containing monomer A and a dispersing agent, and performing spray drying to obtain electrolyte powder wrapped by the fluorine-containing monomer A; s3, ball-milling and uniformly mixing the electrolyte powder wrapped by the fluorine-containing monomer A, a lithium salt, a thermal curing agent and a monomer B in an inert atmosphere to obtain composite electrolyte powder; and S4, carrying out cold isostatic pressing and hot pressing curing on the composite electrolyte powder to prepare the LiaMXb-based composite solid electrolyte membrane. The prepared LiaMXb-based composite solid electrolyte membrane not only has excellent air stability, flexibility and machinability, but also has a continuous three-dimensional ion conduction path, and the assembled all-solid-state lithium battery has good electrochemical performance.

The invention provides a single-glass crystalline silicon photovoltaic module recovery method, and aims to solve the problems that fluorine film residues easily exist on a packaging adhesive film and fluorine-containing waste gas is discharged during subsequent pyrolysis of the packaging adhesive film after a back plate is removed by an existing physical disassembly, pyrolysis, separation and recovery process, and in addition, most welding strip coatings on the market contain lead, so that when the adhesive film is removed by pyrolysis, the lead-containing waste gas cannot be discharged during the subsequent pyrolysis of the packaging adhesive film. The lead element diffuses to pollute the battery piece, and the subsequent recovery difficulty is increased. Before the packaging adhesive film and the battery piece are shoveled off by a heat knife, a packaging adhesive film thinning process and a welding strip removing process are added. The residual backboard and the residual fluorine film can be removed together through the adhesive film thinning process, and the problem of fluorine-containing tail gas emission is solved; in addition, the lead-containing solder strip is removed before pyrolysis, and the solder strip is not subjected to a high-temperature process, so that pollution of lead elements to a battery piece is reduced; by optimizing the disassembling process, the breakage rate of the removed back glass is reduced, and the production yield of a production line is increased. The method is not only suitable for recycling of complete single-glass assemblies, but also suitable for recycling of broken single-glass assemblies, and the process applicability is high.

The invention discloses a crosslinked polyethylene reinforced high-strength insulating aerial cable, and belongs to the technical field of crosslinked polyethylene cable materials.The crosslinked polyethylene reinforced high-strength insulating aerial cable is prepared by the steps that hydroxyl is introduced to nano boron nitride powder, then amino is grafted through KH-550, nano alpha-Al2O3 powder is modified through gamma-glycidyl ether oxypropyl trimethoxy silane, and the cross-linked polyethylene reinforced high-strength insulating aerial cable is obtained; the preparation method comprises the following steps: preparing low-density polyethylene, compounding the low-density polyethylene with aminated nano boron nitride powder to form nano composite powder, improving the interface bonding force between the low-density polyethylene and the nano composite powder, carrying out melt blending on the low-density polyethylene and the nano composite powder to improve the dispersity of the nano composite powder in the low-density polyethylene, and carrying out nucleophilic acyl substitution reaction to obtain a fluorine-containing modified monomer. The nano boron nitride powder and the nano alpha-Al2O3 powder are subjected to a cross-linking reaction under the initiation action of an initiator and then coat the exterior of the thermal insulation layer, and the nano boron nitride powder and the nano alpha-Al2O3 powder are bridged through siloxane bonds to form a three-dimensional heat-conducting network, so that the heat resistance of the outer insulating layer is improved.

The present invention provides a method for manufacturing a dried ion exchange membrane that can manufacture a water electrolysis device having suppressed liquid leakage.　The method for producing a dried ion exchange membrane according to the present invention is a method in which a wet ion exchange membrane, which was obtained as a result of an ion exchange membrane that includes a fluoropolymer having ion exchange groups being wetted using a liquid medium, is dried to remove the liquid medium, thereby obtaining a dried ion exchange membrane, wherein the wet ion exchange membrane is dried from a state where the amount of the liquid medium adhering to the surface of the wet ion exchange membrane is 40 g / m2 to 600 g / m2.

The invention provides gel with a three-dimensional network structure, a preparation method of the gel and a lithium battery, and belongs to the technical field of lithium batteries. The gel provided by the invention comprises the following raw materials: polyethylene glycol dimethacrylate (PEGDMA) and / or a derivative thereof, a fluorine-containing carbonate compound, a cross-linking agent, a lithium salt, a flame retardant and an organic solvent. The PEGDMA and / or the derivative thereof and the fluorine-containing carbonic ester compound generate a three-dimensional network structure under the action of the cross-linking agent, the fluorine-containing carbonic ester compound can improve the interface stability between the gel and the electrode material, reduce the interface side reaction and improve the thermal stability of the gel, and the performance of the electrode material is improved. Meanwhile, the three-dimensional network structure has relatively high porosity and liquid absorption capacity, so that an ion transmission channel is improved, and the ionic conductivity of the gel is further improved. The room-temperature ionic conductivity of the gel with the three-dimensional network structure is larger than or equal to 3 mS / cm, and the thermal decomposition initial temperature is larger than or equal to 250 DEG C.

The invention relates to a solvent-resistant medical connecting line sheath material and a preparation method thereof, and belongs to the technical field of high polymer materials. The sheath material is prepared from the following components: 38 to 44 weight percent of passivated toughening agent, 1.5 to 1.8 weight percent of heat stabilizer, 0.7 to 0.9 weight percent of lubricant, 0.12 to 0.15 weight percent of antioxidant and the balance of PVC (Polyvinyl Chloride) resin, the passivated toughening agent is prepared by the following steps: carrying out amine ester exchange reaction on 4-hydroxybutylamine and dimethyl difluoromalonate, introducing an alcohol-terminated hydroxyl group, carrying out substitution with dichloromethylvinylsilane to form a fluorine-containing chain compound, and finally carrying out double bond addition on methyl thioglycolate and a side chain; the passivation toughening agent is compatibilized through branched chain methyl ester and dynamically coordinated with a PVC molecular chain through a side chain thioether group, weakens the acting force between PVC chains, plays a good toughening role, inhibits dissolution through physical crosslinking, shields and passivates the PVC molecular chain, and relieves swelling of PVC in a solvent.

The utility model belongs to the field of chemical raw material recovery, and discloses a continuous resourceful treatment system for photovoltaic fluorine-containing wastewater. The system comprises a first-stage fluorine removal unit, a second-stage fluorine removal unit and a silicon removal unit. According to the utility model, the fluorine element is subjected to resource recovery in the form of high-purity calcium fluoride with the purity of more than 95%, meanwhile, the consumption of a fresh sodium hydroxide solution is avoided, the purpose of treating waste with waste is realized, and the residual fluorine quantity in the effluent of the system is reduced to be less than 5mg / L.

The invention discloses a glue solution for a copper-clad plate and a preparation method of the glue solution, and relates to the technical field of copper-clad plates. According to the prepared glue solution for the copper-clad plate, the composite epoxy resin, the curing agent, the accelerant, the solvent, the flexibilizer and the inorganic filler, the composite epoxy resin comprises bisphenol A epoxy resin, epoxy phenyl polysiloxane, itaconic acid polyaryletherketone and hydroxyl-terminated fluorine-containing vinyl polysiloxane, so that the interface bonding force with the copper plate is enhanced; the dielectric constant and the dielectric loss are effectively reduced, the peel strength and the toughness of the material are also remarkably improved, and the toughening agent is modified polyether sulfone microspheres; the modified polyethersulfone microspheres are prepared by coating polyethersulfone microspheres with hexamethylenediamine tetrapropionamide diamine, the hexamethylenediamine tetrapropionamide diamine is prepared by carrying out acylation condensation reaction on hexamethylenediamine tetramethyl propionate and ethylenediamine, and the polyethersulfone microspheres are prepared by carrying out electrostatic spinning on a spinning solution of polyethersulfone and vinylpyridine, so that the peel strength of the glue solution is remarkably improved.

The invention relates to a fluoride-free polyimide-based film and a preparation method thereof. The method comprises the following steps: S1, preparing a polyamide acid solution; s2, fluorine-free organic silicon serving as a modifier is added into the polyamide acid solution and dispersed, a blended spinning solution is formed, and the solubility parameter difference value of the fluorine-free organic silicon and polyamide acid is 2.0 (MPa) 1 / 2 or below; s3, carrying out electrostatic spinning on the blended spinning solution to form a polyamide acid-based nanofiber layer; and S4, carrying out thermal imidization on the polyamide acid-based nanofiber layer to obtain the fluoride-free polyimide-based film. The film has a structure formed by three-dimensional cross-linking and winding of polyimide-based nanofibers, and the polyimide-based nanofibers are composed of a polyimide base material and fluorine-free organic silicon dispersed in the polyimide base material. The method does not involve fluorine-containing raw materials, and is environment-friendly and high in process compatibility. The film provided by the invention has excellent waterproofness, air permeability and mechanical properties at the same time.

The invention discloses a shale oil carbon dioxide flooding surfactant and a preparation method thereof, and belongs to the technical field of surfactants. The rock oil carbon dioxide flooding surfactant is prepared from the following components in parts by weight: 100 parts of water, 40 to 60 parts of fluorine-containing copolymer, 15 to 25 parts of sodium dodecyl benzene sulfonate, 10 to 20 parts of polyoxyethylene ether surfactant containing siloxy and 5 to 10 parts of nanoparticles. The fluorine-containing copolymer, the sodium dodecyl benzene sulfonate, the siloxy-containing polyoxyethylene ether surfactant and the nanoparticles are compounded, so that on one hand, the surfactant has relatively high salt tolerance and temperature tolerance so as to adapt to the environment of a shale oil reservoir; on the other hand, the surface activity is synergistically improved, the interfacial tension is reduced, the rock surface wettability is changed, and the system stability is enhanced, so that higher recovery efficiency is realized.

The invention belongs to the technical field of polymer insulating materials, and particularly discloses a high-toughness and high-insulating-strength epoxy insulating material and a preparation method thereof. Single-end amine-terminated straight-chain alkyl groups with different chain lengths in a specific molar ratio are grafted to fluorine-containing epoxy resin to construct a side chain structure, and then a step curing process is adopted to form a three-dimensional cross-linked network with a curing agent under the action of an accelerant. The fracture toughness is remarkably improved by utilizing an epoxy body chain extension effect in a side chain grafting process and a uniform microphase separation structure formed by self-assembly of a long alkyl side chain in a curing process; meanwhile, through the synergistic effect of steric hindrance of a short alkyl side chain and a fluorine atom charge trap, delocalized electron transmission of a benzene ring conjugated structure is inhibited, and the insulating property is synchronously enhanced. Compared with a traditional toughening technology, insulation deterioration caused by toughening modification is effectively avoided, and an epoxy resin material with mechanical reliability and insulation stability is provided for high-voltage electrical equipment.

The invention provides a high-insulation black organic silicon coloring agent and a preparation method thereof. The high-insulation black organic silicon coloring agent comprises the following raw materials in parts by mass: 100 parts of a silicone oil carrier; 3-5 parts of passivated carbon black; 1-3 parts of fumed silica; wherein the passivated carbon black comprises carbon black and an organic silicon layer coated on the surface of the carbon black; the organic silicon layer is obtained by graft polymerization of polymethyltriethoxysilane and a functionalized silane coupling agent on the surface of the carbon black; the functionalized silane coupling agent comprises at least one of an aryl silane coupling agent and a fluorine-containing silane coupling agent. According to the black coloring agent, the advantage of high blackness of carbon black is maintained, meanwhile, the electric insulation performance and dispersion stability of the black coloring agent in a silicone oil system are remarkably improved, the problems that the carbon black is high in conductivity, poor in interface compatibility and prone to agglomeration are solved, and the black coloring agent is especially suitable for being applied to organic silicon materials with the high requirement for the insulation performance.

The invention relates to the technical field of synthetic leather, in particular to a preparation method of flame-retardant superfine fiber synthetic leather based on a water decrement technology. The method comprises the following steps: dipping pretreatment of PET / PVA sea-island fiber non-woven fabric in a polyvinyl alcohol aqueous solution, synthesis of a modified polyurethane emulsion with fluorine-containing chain modified melamine coated ammonium polyphosphate as a flame-retardant component, multiple padding and water decrement treatment of a composite base material, and sizing finishing by adding a softening agent and an antistatic agent. Through application of fluorine chain modified melamine, dissolution of flame-retardant components in the water decrement process is effectively prevented, meanwhile, the quality of a carbonized layer is improved, and the flame-retardant efficiency is improved. The obtained superfine fiber synthetic leather has excellent flame retardance, good washing resistance and mechanical properties, comfort and high moisture permeability, and is suitable for clothing and special fields with high safety and durability requirements.

The invention relates to a battery monomer, a battery device and a power utilization device, the battery monomer comprises an electrode assembly and an electrolyte, the electrode assembly comprises a positive pole piece, the positive pole piece comprises a positive active material layer, and the positive active material layer comprises lithium-containing phosphate of an olivine structure; the electrolyte comprises, by mass, 8-30% of a carboxylic ester solvent, a lithium salt and an unsaturated ester additive, the lithium salt comprises lithium hexafluorophosphate and fluorine-containing lithium sulfimide, the mass content of the fluorine-containing lithium sulfimide in the lithium salt is 18-45%, the mass content of the unsaturated ester additive in the electrolyte is 0.05-5%, and the mass content of the unsaturated ester additive in the electrolyte is 0.05-5%. The unsaturated ester additive comprises one or more of vinylene carbonate, vinylethylene carbonate, allyl ethyl carbonate and a fluoro-carbonate additive; the amount of electrolyte in the battery cell is 2.8 g / Ah to 3.2 g / Ah. According to the invention, rapid charging and use reliability of the single battery can be considered.

The invention belongs to the technical field of polymer composite materials, and particularly relates to an oil-resistant interior material. The material comprises a porous base material layer, a fluorine-containing polymer and organic silicon resin blended oil-resistant functional layer and a micro-nano structure layer with a periodic micro-bulge array, surface modified nanoparticles are distributed in the functional layer in a gradient manner, and the micro-bulge surface is covered with a perfluoropolyether / fluorinated silicon dioxide composite coating; through a synergistic effect of a low-surface-energy oleophobic interface formed through chemical bonding and curing and a micro-structure capillary lifting effect, anti-permeation barrier of high-viscosity grease is realized, and meanwhile, mechanical wear resistance and thermal stability are improved by virtue of a nano-particle enhanced cross-linked network; and continuous imprinting and an ultraviolet-thermal dual-curing process are combined to achieve high-efficiency manufacturing with zero solvent residue, and finally the interior material with long-acting oil resistance, high environmental tolerance and industrial mass production feasibility is obtained.

The invention discloses a flame-retardant ABS (Acrylonitrile Butadiene Styrene) composition as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The flame-retardant ABS composition provided by the invention comprises the following components in parts by mass: 50-80 parts of ABS resin; 8 to 12 parts of styrene-acrylonitrile copolymer; 3 to 5 parts of styrene-acrylonitrile-maleic anhydride terpolymer; 2 to 6 parts of a fluorine-containing maleimide copolymer; 5 to 15 parts of graphite nanosheet modified high rubber powder; 12 to 18 parts of brominated flame retardant; 3-7 parts of a phosphorus-based flame retardant; 0.1-1 part of a processing aid; the phosphorus-based flame retardant is prepared from the following components in parts by mass: 80 to 95 parts of diethyl phosphinate; 0.3 to 3 parts of ethyl butyl phosphinate; 0.1 to 2 parts of ethyl phosphonate; and 5 to 20 parts of melamine polyphosphate. The flame-retardant ABS composition prepared by the invention is good in flame retardant property, good in welding strength and low in cost.

The invention discloses a photoresist micro-lens array preparation method and system, and relates to the field of micro-nano optical device manufacturing. The preparation method of the photoresist micro-lens array comprises the following steps: carrying out chemical mechanical polishing treatment on a silicon wafer, spin-coating photoresist on a substrate to form a cylindrical array, and eliminating solvent gradient through pre-drying; forming a fluorocarbon nano film on the surface of the photoresist through plasma deposition so as to reduce the surface energy of the photoresist; realizing hot reflux of the photoresist based on gradient annealing, wherein the gradient annealing comprises a preheating section, a main reflux section and a stable section; on the basis of the preheating section, glass transition stress is avoided, fluorine-containing gas and inert gas are synchronously introduced into the main backflow section to act on a plasma sheath layer, so that the flowing direction of photoresist is regulated and controlled, and the edge coffee ring effect is inhibited; the stable section synchronously performs plasma assistance to lock the shape; and the precision and the consistency of the micro-lens array are improved through segmented temperature regulation and control and a plasma auxiliary technology.

The invention discloses a degradable PHA / PU composite water-based barrier coating and a coated paper product, and belongs to the field of biodegradable polymer coatings. The coating composition comprises a high proportion of polyhydroxyalkanoates as a barrier phase and a bio-based polyurethane as a toughening and heat sealing phase. The key innovation lies in that the cooperation of rigid barrier and flexible functions is realized by accurately regulating and controlling the ratio of two phases and adopting bio-based crosslinking, and the problem that the barrier property, the heat sealability and the flexibility of a traditional single material are difficult to consider at the same time is solved under the condition of low coating amount. The invention provides a full-life-cycle green packaging solution, aims to replace a polyethylene spraying film and a fluorine-containing coating, and has a remarkable application value in the field of food packaging.

The invention discloses a temperature-responsive microcapsule fire extinguishing material as well as a preparation method and application thereof. The temperature-responsive microcapsule fire extinguishing material comprises a core structure and a shell structure, wherein the shell structure coats the core structure; the core structure comprises a fluorine-containing fire extinguishing agent; the shell structure comprises a high polymer material, a nano compound, a surfactant and a curing agent. According to the perfluorohexanone microcapsule fire extinguishing material, intelligent response release is achieved, the explosion temperature range can be precisely regulated and controlled to be 90-130 DEG C according to the applicable scene, it is ensured that the fire extinguishing agent is released at the critical moment, and the problem of too early or too late release is avoided.

The invention discloses a process and equipment for synthesizing fluorapatite from wastewater, the equipment comprises a blending tank, a dispensing tank, a crystallization fluidized bed reactor, a reaction tank, a coagulation tank, a flocculation tank, a sedimentation tank, a pH detection device, a lift pump and a control system, fluorine-containing sewage and phosphorus-containing sewage are mixed in the blending tank, so that the molar ratio of fluorine to phosphorus is 0.34-0.4; the method comprises the following steps: adding fluorapatite into a reaction tank, adjusting the pH value to 7.5-8.5, pumping the fluorapatite and lime slurry into a crystallization fluidized bed reactor according to a calcium-phosphorus molar ratio of (3-3.5): 1, carrying out a crystallization reaction, naturally airing the generated fluorapatite crystals, carrying out a reaction on crystallization treatment water and the lime slurry in the reaction tank to remove fluorine and phosphorus, carrying out coagulation, flocculation and precipitation treatment, and discharging the effluent after reaching the standard. The high-quality fluorapatite product is prepared from the fluorine-containing sewage and the phosphorus-containing sewage, so that the preparation cost is low, and resourceful treatment of the fluorine-containing sewage and the phosphorus-containing sewage is realized.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a deep eutectic electrolyte, a preparation method and application thereof and a lithium ion battery. The deep eutectic electrolyte provided by the invention comprises a lithium salt and fluorine-containing amide, the mass ratio of the lithium salt to the fluorine-containing amide is 1: (1-12). According to the deep eutectic electrolyte provided by the invention, the lithium salt and the fluorine-containing amide are compounded, so that the obtained electrolyte can be kept in a liquid state within a relatively wide temperature range; the strong interaction between the fluorine-containing amide and the lithium salt can dissociate a large amount of lithium salt, promote rapid conduction of ions and increase the migration rate of lithium ions in the electrolyte, so that the electrochemical performance of the electrolyte is improved; the fluorine-containing amide molecules and the lithium ions form a solvation effect, and a layer of SEI film rich in LiF and Li3N is formed on the surface of the lithium metal in the circulation process, so that uniform deposition of the lithium ions is promoted, growth of lithium dendrites is inhibited, consumption of electrolyte is reduced, and the circulation stability of the lithium ion battery is further improved.