414 results about "Fluorocarbon" patented technology

The invention discloses a fracturing imbibition system for refracturing a low-permeability tight oil reservoir and a preparation method of the fracturing imbibition system, and belongs to the technical field of fracturing fluids, the fracturing imbibition system comprises: an acid liquid base fluid: hydrochloric acid, hydrofluoric acid, EDTMPS and deionized water; an amphoteric betaine viscoelastic surfactant; biologically modifying the nanoparticles; a Gemini cationic surface active agent; a corrosion inhibitor; and an organic silicon defoaming agent and a fluorocarbon discharge aiding agent. According to the fracturing imbibition system, through the integrated design of the multifunctional surfactant, the problems that a traditional acid fracturing fluid is insufficient in silicate mineral dissolving capacity, high-temperature viscosity is attenuated, and corrosion inhibitor dependence is caused are solved.

The invention relates to a high-strength self-cleaning infrared radiation heat dissipation water-based coating as well as a preparation method and application thereof. The coating comprises the following components in parts by weight: 40-55 parts of water, 5-10 parts of a water-based binder, not more than 20 parts of a high-emissivity filler and not more than 5 parts of a fluorocarbon surfactant, the water-based binder is selected from at least one of styrene-acrylic emulsion, water-based polyurethane, polyvinyl alcohol, water-based acrylic resin, water-based epoxy resin and water-based alkyd resin, and the fluorocarbon surfactant is selected from at least one of water-based acrylic emulsion, water-based polyurethane, polyvinyl alcohol, water-based acrylic resin, water-based epoxy resin and water-based alkyd resin. The high-emissivity filler is selected from at least one of BaSO4, ZnO, Al2O3, SiC, BN (boron nitride) and SiO2, and the fluorocarbon surfactant is selected from at least one of FS-65, FS-34, ST-110, FC-4432 and FS-3100. According to the invention, ZnO, BaSO4 and the like are introduced as composite fillers, so that the coating is endowed with high strength, self-cleaning property and full-wave-band high emissivity, various properties such as wear resistance, adhesion, acid and alkali resistance, organic solvent corrosion resistance, aging resistance, high and low temperature resistance and the like of the coating are improved, and the coating can meet the requirements of various different heat dissipation scenes when being applied to electronic components.

The invention discloses a water-based environment-friendly coating and local printing transfer paper thereof, and particularly relates to the technical field of water-based environment-friendly coatings. The water-based environment-friendly coating is prepared from a water-based epoxy ester dispersion, an organic silicon modified polyvinyl butyral emulsion, a gas-phase method aluminum oxide nano dispersion, a fluorocarbon surfactant, a self-crosslinking polyether thickening agent and a propylene glycol methyl ether acetate-water azeotropic quick-drying auxiliary agent. According to the coating, through cooperation of specific components and process control, the drying speed is remarkably increased, the surface drying time is shortened, meanwhile, shrinkage cavities are eliminated, the hardness of the coating is enhanced, and the edge transfer precision is improved. Corona treatment is adopted for the corresponding local printing transfer paper, gravure precise coating, infrared pre-drying and gradient hot air drying are matched, and finally clear separation and transfer of a coating are achieved through infrared laser scanning. The whole system is a water-based formula, is environment-friendly and safe, is suitable for the field of high-end printing, and has the comprehensive advantages of high drying speed, high precision, strong adhesive force, simplified process and the like.

The invention discloses a polymer dry powder fracturing fluid and a preparation method thereof, and belongs to the technical field of oil and gas field yield increase. The preparation method comprises the following steps: adding polymer dry powder, modified fluorocarbon, polyvinylpyrrolidone and beta-cyclodextrin into a mixer, stirring and mixing for 20-40 minutes, then sieving with a 120-180-mesh sieve, and packaging to obtain the polymer dry powder fracturing fluid. Nano silicon dioxide is modified and then subjected to a copolymerization reaction with acrylic acid, acrylamide and 2-acrylamido-2-methylpropanesulfonic acid, and nano particles with rigidity and extremely high thermal stability are chemically bonded to a polymer molecular chain, so that thermal oxidative degradation and shear fracture of the molecular chain at high temperature can be effectively inhibited; the shear resistance and the high temperature resistance of the fracturing fluid are improved; the fluorocarbon chain segment in the modified fluorocarbon can significantly reduce the interfacial tension between the fracturing fluid and the inner wall of the pipeline and the formation fluid, and the drag reduction capability of the fracturing fluid is enhanced in cooperation with the uniform and stable viscosity characteristic of the polymer system.

The invention relates to the technical field of cables, in particular to a strong-acid-resistant and high-temperature-resistant silicone rubber cable and a processing technology thereof.The strong-acid-resistant and high-temperature-resistant silicone rubber cable sequentially comprises a multi-core insulating wire core, a filling layer, a cabling cable core wrapping tape, a shielding layer, an optical fiber unit, a buffer layer, a fluorocarbon protective layer and a corrosion-resistant and high-temperature-resistant sheath layer from inside to outside. Through the multi-layer protection design of the conductor anticorrosion priming coat, the insulating layer fluorosilicone resin protection layer, the filling layer-wrapping tape-buffer layer ceramic silicone rubber synergistic protection, the hydrophobic anti-permeation interlayer and the sheath layer acid-resistant filler, a compact acid-resistant protection system is formed, the cable is soaked in sulfuric acid / hydrochloric acid with the concentration of 50% and the temperature of 250 DEG C for 720 h, and the cable has the good anti-corrosion performance. The sheath layer and the wrapping tape do not crack, swell or fall off, the insulation performance is not obviously reduced, the problem that an existing cable is prone to aging and damage under strong acid is solved, double corrosion prevention of the conductor is achieved, and strong acid corrosion is thoroughly avoided.

The invention provides a diesel oil anti-wear agent and a preparation process thereof, and belongs to the technical field of diesel oil additives, and the preparation process comprises the following steps: mixing and stirring diisooctyl maleate and xylene, adding diethylenetriamine and deionized water, carrying out heating reaction, adding toluene, 4-(aminomethyl) pyridine and ethylene oxide, carrying out mixing reaction, filtering, washing, and drying to obtain the diesel oil anti-wear agent. The pyridinium-based polyester hollow capsule is prepared; the preparation method comprises the following steps: mixing xylene, catechol, ethylene phosphonic acid, ammonium persulfate and deionized water, heating, dispersing in cyclohexane, adding polyvinyl alcohol, octadecyl methacrylate and azodiisobutyronitrile, mixing and reacting to obtain catechol phosphonate nano colloidal particles; mixing and stirring the fatty acid ester solution, the oleoyl fluorocarbon copolymer and the pyridinium-based polyester hollow capsule, adding the catechol phosphonate nano colloidal particles, continuously stirring, performing ultrasonic treatment, and degassing to obtain the diesel oil anti-wear agent. The diesel oil antiwear agent can improve the antiwear property and demulsibility of the diesel oil antiwear agent.

A method of processing a substrate that includes: flowing a fluorocarbon, a metal halide, and dihydrogen (H2) into a plasma processing chamber, the plasma processing chamber configured to hold a substrate including a dielectric layer including silicon oxide as an etch target and a patterned hardmask including polycrystalline silicon (poly-Si) over the dielectric layer; while flowing the gases, generating a plasma in the plasma processing chamber; and forming a high aspect ratio feature by exposing the substrate to the plasma to etch a recess in the dielectric layer, where a metal-containing passivation layer is formed over the patterned hardmask during the exposing.

A proton exchange membrane for an energy conversion device, a hydrogen fuel cell stack for a vehicle, and a method for producing a proton exchange membrane. The proton exchange membrane contains a first layer of a perfluorosulfonic acid ionomer. Furthermore, the perfluorosulfonic acid ionomer contains a first additive coated with methoxy nonfluorobutane. The hydrogen fuel cell stack comprises one or more membrane electrode assemblies, each containing a proton exchange membrane.

The invention discloses a fluorocarbon grafted siloxane supercritical carbon dioxide thickening agent and a preparation method thereof, and relates to the technical field of carbon dioxide thickening. The method comprises the following steps: firstly, carrying out hydrosilylation reaction on tetramethyl tetravinyl cyclotetrasiloxane, tetramethyl cyclotetrasiloxane and multi-arm unsaturated acrylate to prepare a siloxane intermediate, and then carrying out free radical polymerization on the siloxane intermediate and fluoroacrylate to prepare the thickening agent. According to the prepared supercritical carbon dioxide fracturing fluid thickening agent, the contained carbon dioxide-philic groups can interact with carbon dioxide, so that the dissolving property of the thickening agent in supercritical carbon dioxide is enhanced; the thickening agent contains rich multi-branched siloxane groups, a spatial network structure can be further formed, and the supercritical carbon dioxide is effectively thickened through the synergistic effect of all the components.

To provide a compact, low-power fluorocarbon gas sensor that can safely detect fluorocarbon gases. [Solution] A fluorocarbon gas sensor comprising a polymer whose capacitance changes in the presence of a fluorocarbon gas, and a detection unit that detects the potential change based on the capacitance change.

The present invention provides an etching gas containing 1,1,1,2-tetrafluoroethane and a fluorocarbon-based compound having one or more double bonds.

This invention relates to the field of nanomedicine delivery systems, specifically to an ultrasound-enhanced synergistic immunotherapy drug delivery system, its preparation method, and its applications. The ultrasound-enhanced synergistic immunotherapy drug delivery system includes a lipid shell and a fluorocarbon gas encapsulated within the lipid shell. The lipid shell is made from cancer cell membranes and a lipid membrane formed from synthetic phospholipids. The lipid shell integrates a protein degradation-targeting chimera for degrading PD-L1. This invention combines targeted drug delivery, PD-L1 targeted degradation, and ultrasound enhancement technology to construct an integrated synergistic immunotherapy drug delivery system. Through multi-mechanism synergistic action, it overcomes the bottlenecks of existing PROTAC delivery systems, achieving a highly efficient anti-tumor immune response. This technical solution solves the technical problems of limited tumor tissue penetration and cellular uptake efficiency of PROTAC degrading agents targeting PD-L1, resulting in unsatisfactory delivery effects and promising prospects for widespread application.

The invention discloses a high-power lithium battery and a power distribution method, and belongs to the technical field of high-power lithium ion batteries. The device comprises: a composite electrode comprising a positive electrode, a negative electrode and an electrolyte; the negative electrode is a hard carbon / silicon composite material with hierarchical pores; lithium difluorophosphate and fluoro-carbonate are added into the electrolyte; the thermal management framework comprises a phase change material and a pulse type liquid cooling device; and the phase change material is filled between the adjacent composite electrodes. The system is ultra-low in energy consumption, the mode of continuous energy consumption of a traditional liquid cooling system is subverted, the system works depending on zero-energy-consumption PCM in most of the time, and the endurance of the vehicle is remarkably improved.

The invention discloses a control method for a preparation process of a high-weather-resistance fluorocarbon powder coating, relates to the technical field of powder coating control, and aims to solve the problems of weather resistance, low-voltage electrostatic spraying adaptability and large production fluctuation in long-term outdoor use. The method comprises the following steps: firstly, constructing a multi-dimensional index system of an extrusion thermal history index, a particle size morphology comprehensive index, an electrostatic spraying adaptability index and a weather resistance comprehensive prediction index; establishing a quantitative relation between process indexes and performance indexes through an extrusion and grinding combined test of a representative formula, and analyzing to obtain a safe operation area meeting spraying and weather resistance requirements; then, data and powder performance of an extrusion section and a grinding and grading section are collected in actual production, batch indexes are calculated, and the process state is judged; and finally, extrusion and grinding process parameters are cooperatively adjusted according to the state information, so that the powder keeps balance among long-term weather resistance, low-voltage spraying adaptability and production stability.

The application relates to a water-based fluorocarbon color paste electrostatic spraying system and relates to the technical field of paint spraying equipment, which comprises a machine body, a spray gun for spraying workpieces is arranged on the machine body, a feed loop for conveying color paste to the spray gun is arranged on the machine body, an electrostatic generator is connected to the feed loop, and an adjusting mechanism for adjusting the opening and closing of the spray gun is arranged on the machine body. The electrostatic generator supplies power to the feed loop, and electrostatics are mixed into the color paste, so that the color paste is negatively charged; the adjusting mechanism opens the spray gun, and then the color paste mixed with the negative charge is sprayed on the workpiece with positive charge, and a uniform coating is deposited, so that the operation is convenient, and the possibility that the color paste is difficult to be adsorbed on the workpiece and causes uneven distribution of the color paste on the surface of the workpiece is reduced.

This invention provides a large-angle, ultra-large-area operable roof skylight system, belonging to the field of skylight construction technology. It includes fluorocarbon-coated welded steel pipes, conversion channel steel, a custom-made waterproof aluminum alloy support frame, an aluminum alloy fixing frame, an aluminum alloy operable sash, and insulated tempered laminated glass. The fluorocarbon-coated welded steel pipes and fluorocarbon-coated square steel serve as the main and secondary keels of the operable roof skylight system, respectively. The conversion channel steel connects to the main and secondary keels. The custom-made waterproof aluminum alloy support frame and aluminum alloy fixing frame are fixed to the conversion channel steel with screws. The aluminum alloy operable sash is fixed to the aluminum alloy fixing frame via hinges. The lower end of the electric window opener is hinged to the fluorocarbon-coated welded steel pipe via a connecting steel component, and the upper end is fixed to the skylight frame via a base. This invention enables a large-angle opening of the ultra-large-area skylight, achieving the effect of fully opening the ultra-large-area skylight before the flue gas fills the smoke storage chamber. Furthermore, the skylight maintains good water tightness and air tightness when closed.

The application relates to the technical field of heat preservation air pipe, in particular to a high-molecular film-coated rubber and plastic heat preservation air pipe, which comprises a plate body, the plate body is quadrangular, the plate body is made of flexible rubber material, one side of the plate body is fixedly provided with a waterproof layer made of composite fluorocarbon fiber material, one side of the plate body opposite to the waterproof layer is provided with a wear-resistant layer formed by spraying high-molecular material, one side of the wear-resistant layer of the plate body is provided with a first zipper part and a second zipper part matched with each other, and a zipper head is slidably arranged on the first zipper part. The waterproof layer made of composite fluorocarbon fiber material and the wear-resistant layer formed by spraying high-molecular material are arranged, the waterproof and wear resistance of the heat preservation air pipe are improved, the problem that the heat preservation air pipe is prone to damage during installation and transportation is avoided, and the production and installation cost is saved. Meanwhile, the heat preservation air pipe can also have excellent elasticity and tensile strength.

A system and method for chemically destroying, degrading and incinerating a fluorocarbon or fluorinated material, such as perfluoroalkyl and polyfluoroalkyl substances (PFAS), with reduced emissions of gaseous PFC is provided. The method includes mixing the fluorinated material with an aqueous alkoxide base in a batch reactor to form a suspension. The PFAS can be provided by AFFF. The reaction mixture is heated to a temperature ranging from about 25ºC to about 400ºC for about 0.5 hours to about 240 hours to defluorinated fluorocarbons in the PFAS and produce a defluorinated waste product. More specifically, the method converts organic fluorine present in the PFAS to inorganic fluoride. Thus, the defluorinated waste product can be incinerated with reduced emissions of harmful gaseous PFCs.

The invention relates to an alloy self-repairing antifouling coating for ships and a preparation method of the alloy self-repairing antifouling coating. The alloy self-repairing antifouling coating is prepared from components of raw materials in parts by weight as follows: 40-60 parts of modified epoxy resin, 10-25 parts of multifunctional packaging alloy microspheres, 5-15 parts of a dynamic cross-linking agent, 3-10 parts of nano reinforcing filler and 1-5 parts of an auxiliary. The surface of the modified epoxy resin is modified by a fluorine-containing surfactant and / or polyurethane. The fluorocarbon chain segment and / or the polyurethane chain segment are / is introduced into the epoxy resin, so that the coating is endowed with excellent anti-scouring performance and a long-term self-maintaining antifouling function.

The invention discloses a long-acting anti-corrosion zinc-aluminum-magnesium coating and a preparation method thereof, and relates to the technical field of anti-corrosion coatings. The coating is prepared from, by weight, 20-35 parts of zinc-aluminum-magnesium alloy powder (the zinc content is 65-75% by weight, the aluminum content is 15-25% by weight, and the magnesium content is 5-10% by weight), 15-25 parts of polysiloxane resin, 10-18 parts of fluorocarbon modified resin, 8-15 parts of epoxy resin, 12-20 parts of pigment filler, auxiliaries and a solvent, and the preparation method comprises the steps of pretreatment, base material preparation, grinding and dispersing, blending, filtering and packaging. According to the invention, through a synergic anticorrosion mechanism of the zinc-aluminum-magnesium alloy and in combination with a composite system of polysiloxane and fluorocarbon modified resin, multifunctional synergism of long-acting anticorrosion, water resistance, fire resistance, stealth, heat insulation and the like is realized, the anticorrosion service life reaches 15 years or more, the salt spray resistance reaches 3000 hours or more, and the coating is suitable for metal structure protection in the fields of ships, airplanes, high-speed rails, ocean engineering and the like.

The invention belongs to the technical field of power transmission, and provides an anti-icing aluminum cable steel reinforced and a preparation method thereof.The preparation method comprises the steps that an ethylene glycol solution and mesoporous silica are mixed, and modified silica is obtained; mixing fluorinated polyurethane, butyl acetate and the modified silicon dioxide solution to obtain a composite coating; and coating the composite coating on the surface of the steel-cored aluminum stranded wire, and curing to obtain the anti-icing steel-cored aluminum stranded wire. After coating, the resin is cured to form a continuous three-dimensional network, and the modified silicon dioxide is fixed on the surface of the coating, so that a micro-nano coarse structure is constructed, and a rapid water guide effect is realized; fluorocarbon chains in the fluorine-containing coupling agent form a low-surface-energy molecular layer, so that the purpose of hydrophobic chemical modification is achieved; ethylene glycol in silicon dioxide can be actively released from the pore channels, the freezing point is reduced, and the long-acting anti-icing target is achieved. The anti-icing effect of the steel-cored aluminum strand is achieved through a triple mechanism of micro-nano structure water diversion, low-surface-energy molecular layer hydrophobicity and modified silicon dioxide freezing point reduction.

The application discloses a welding sheet for dissimilar material welding, which comprises a hollow welding sheet shell, a core layer flux and an outer layer flux, the core layer flux is uniformly dispersed in the hollow of the welding sheet shell, and the outer layer flux is loaded on the surface of the welding sheet; raw materials of the core layer flux include, by weight, 10-12 parts of potassium tetrafluoroaluminate + potassium hexafluoroaluminate eutectic crystal, 2-4 parts of cesium fluoroaluminate and 2-4 parts of nano-nickel modified graphene oxide; raw materials of the outer layer flux include, by weight, 10-12 parts of potassium tetrafluoroaluminate + potassium hexafluoroaluminate eutectic crystal, 2-4 parts of cesium fluoroaluminate, 2-4 parts of nano-nickel modified graphene oxide, 0.1-0.2 parts of fluorocarbon surfactant and 3-4 parts of polyvinyl alcohol; and the application further discloses a preparation method of the welding sheet. The application can be used for welding of aluminum alloy and alloy steel, improves welding effect, and improves mechanical properties and corrosion resistance of a welding seam.

A method for separating a fluorocarbon gas, the method including feeding a mixed gas that includes two or more kinds of fluorocarbon gases having different molecular diameters from each other to a porous membrane and separating a gas composition in which a mixing ratio of one kind of a fluorocarbon gas selected from the two or more kinds of fluorocarbon gases is increased or a single gas, where the porous membrane includes a zeolite.

This invention relates to a 1,1,2,2-tetrahydroperfluoroalkyl-substituted allyl quaternary ammonium salt, its preparation method, and its application, belonging to the field of flocculation treatment technology for high-salt industrial wastewater from natural gas purification. To address the problem that the synthesis of cationic polymer flocculants in existing technologies requires large amounts of surfactants and involves complex operations, this application employs a substitution reaction between 1,1,2,2-tetrahydroperfluoroalkyl iodide and N-methylallylamine; iodomethane is then reacted with the substitution reaction product to undergo quaternization, yielding a 1,1,2,2-tetrahydroperfluoroalkyl-substituted allyl quaternary ammonium salt; the 1,1,2,2-tetrahydroperfluoroalkyl-substituted allyl quaternary ammonium salt is polymerized with acrylamide to obtain a novel cationic polyacrylamide flocculant. The synthesis of cationic fluorocarbon-modified hydrophobic associative polyacrylamide flocculants using an aqueous solution polymerization method is simple, requires no surfactants, and experiments show that the prepared flocculant exhibits excellent flocculation performance.

The invention discloses filter cartridge mounting gel and a coating method thereof, which can be used for carrying out gel coating treatment on the outer surface of a filter cartridge before the filter cartridge is mounted, and solves the problems that a common filter cartridge is easy to wear in the mounting process and is easy to paste a bag in the subsequent operation. The filter cartridge mounting gel comprises a gel main body and an anti-condensation auxiliary agent; the gel main body is selected from at least one of polyethylene glycol, cellulose colloid, glycerol / water-soluble system, silica gel and paraffin; the anti-condensation auxiliary agent is selected from at least one of hydrophobic nano silicon dioxide, an anti-condensation surfactant, organic silicon anti-condensation particles and a fluorocarbon compound; the mass ratio of the gel main body to the anti-condensation auxiliary agent to the water is (60-85): (1-10): (10-35). According to the corresponding coating method, the filter cartridge mounting gel is coated on site in the filter cartridge mounting process, the friction force in the mounting process is reduced through the lubricating effect of the gel, and abrasion to the outer surface of the filter cartridge is reduced.

The invention discloses a tight sandstone reservoir water-containing gas well water block removing agent and a preparation method and application, belongs to the technical field of gas reservoir development, and is characterized in that the water block removing agent comprises the following components in parts by weight: 20-35 parts of an ampholytic surfactant, 0.3-0.5 part of a fluorocarbon surfactant, 5-10 parts of a wetting agent, 5-10 parts of a solvent and 30-45 parts of water. The prepared water block removing agent is easy to biodegrade and low in surface tension and interfacial tension, the wettability of a rock core can be gradually changed from hydrophilic to hydrophobic, the rock wettability is effectively changed, the interfacial tension between fluid and reservoir rock is reduced, the permeability of the rock core is improved, and then the single-well recovery efficiency of a tight sandstone gas reservoir water-containing gas well is improved.

The invention relates to the technical field of chemical material preparation, and particularly discloses a safe preparation method of a short fluorocarbon alkyl sulphobetaine surfactant, a product and application, and the safe preparation method comprises the following steps: (1) in a solvent system I, reacting epoxy chloropropane with secondary amine to obtain an intermediate 1; (2) in a solvent system II, reacting the intermediate 1 with sodium hydrosulfide or a hydrate thereof to obtain an intermediate 2; (3) reacting the intermediate 2 with short fluorocarbon alkyl iodide to obtain perfluoroalkyl thioether propyl tertiary amine; and (4) carrying out sulfonation treatment on perfluoroalkyl thioether propyl tertiary amine to obtain the short-fluorocarbon alkyl sulphobetaine surfactant. According to the invention, by designing a synthetic route without using a high-risk reagent, the safety and operability of the process are remarkably improved, and the sulphobetaine surfactant with excellent acid, alkali and salt chemical stability and excellent surface activity is successfully prepared; and a key material and a safe and reliable preparation process are provided for development of a new-generation efficient environment-friendly fire extinguishing agent.

This invention provides a glass-microsphere hybrid heat-insulating polyester chip, its preparation method, and its application. The glass-microsphere hybrid heat-insulating polyester chip is obtained by melt extrusion granulation after blending polyester chips with hollow glass microspheres. The surface coating layer of the hollow glass microspheres comprises the following raw materials in weight percentages: 30-50% fluorinated resin prepolymer, 2-8% crosslinking agent, 0.5-2% initiator, and the balance solvent. This invention introduces fluorinated resin into the coating layer on the surface of the hollow glass microspheres. Due to the excellent compatibility between the fluorosilicone or fluorocarbon segments in the fluorinated resin and the polyester matrix, and the introduction of the crosslinking agent to form a three-dimensional network structure, the interfacial bonding force between the coating layer and the polyester matrix is ​​enhanced, preventing microsphere detachment during spinning, and imparting hydrophobicity to the hollow glass microspheres, resulting in self-cleaning properties after spinning.

The present application relates to a kind of for electronic grade octafluorocyclobutane purification adsorbing material, preparation method and application, the preparation method includes the following steps: (1) first ligand, second ligand, transition metal salt, water and multi-walled carbon nanotube are mixed, impregnation, first drying, obtain solid material;Third ligand and organic solvent are mixed, to obtain organic solution;(2) the solid material and the organic solution are mixed, impregnation, second drying is carried out after, under the protection of inert atmosphere, to obtain the adsorbing material.The obtained adsorbing material can remove fluorocarbon impurities in industrial grade 3N purity octafluorocyclobutane raw gas, so that it can be more simply purified into 6N grade product, reaches the requirement of electronic grade.

The pipeline support for building construction comprises a ring body, the inner side of the ring body is fixedly connected with a plurality of fluorocarbon rubber rods and springs which are distributed at equal angles, the tail ends of the fluorocarbon rubber rods and the tail ends of the springs are fixedly connected with clamping rods, the left side and the right side of the ring body are fixedly connected with first connecting blocks, and the left side and the right side of the ring body are fixedly connected with second connecting blocks. The inner surface of the first connecting block is connected with a second connecting block through a bolt, and the outer side of the second connecting block is connected with an adjusting rod through a bolt. A pipeline is inserted from the clamping rod, the external bolt penetrates out of the first mounting hole to fix the pipeline on the inner side of the clamping rod, the pipeline can be flexibly supported under the cooperation of the fluorocarbon rubber rod and the spring, and people can penetrate out of the second mounting hole to fix the mounting plate on the surface of an object through the external bolt. And the position of the ring body can be adjusted under the cooperation of a third connecting block, a sleeve, an adjusting rod, a second connecting block and a first connecting block, so that the overall flexibility of the device is effectively improved.