309 results about "Carbon monofluoride" patented technology

A lithium/fluorinated carbon (Li/CF_x) battery having a composite cathode including an electroactive cathode material, a non-electroactive additive, a conductive agent, and a binder. The electroactive cathode material is a single fluorinated carbon having a general formula of CF_x, whereby x is an averaged value ranging from about 0.5 to about 1.2. The non-electroactive additive is at least one or a mixture of two or more oxides selected from the group comprising Mg, B, Al, Si, Cu, Zn, Y, Ti, Zr, Fe, Co, or Ni. The conductive agent is selected from the group comprising carbon, metals, and mixtures thereof. Finally, the binder is an amorphous polymer selected from the group comprising fluorinated polymers, ethylene-propylene-diene (EPDM) rubbers, styrene butadiene rubbers (SBR), poly (acrylonitrile-methyl methacrylate), carboxymethyl celluloses (CMC), and polyvinyl alcohol (PVA). Also, a method of reducing the initial voltage drop of a lithium/fluorinated carbon (Li/CF_x) battery by providing a composite cathode which includes an electroactive cathode material having a general formula of CF_x, whereby x is an averaged value ranging from about 0.5 to about 1.2, a non-electroactive additive, a conductive agent, and a binder.

The current invention describes a lithium/carbon monofluoride (Li/CF_x) cell capable of delivering sufficient power to supply an ICD or similar demanding device. The cell exhibits the typical excellent long-term stability and predictability of the CF_x system, as well as its high energy density (greater than about 300 Ah/cc, greater than about 600 Wh/cc). Additionally, the cell is capable of delivering about 0.5 W/cc of cathode volume for greater than 5 seconds with a voltage above 1.70 V (FIG. 1). The following invention embodiments can be applied individually or in conjunction with each other.

The invention relates to the technical field of the printed circuit board, in particular to an adhesive-removal method for a printed circuit board HDI (high density interconnection) product. The adhesive-removal method comprises the following steps of: A) mechanical drilling and laser drilling: carrying out mechanical drilling on an HDI product, and carrying out laser drilling on the HDI product to form a through hole and a blind hole; B) plasma adhesive removal: generating a plasma by oxygen and carbon tetrafluoride under the action of the nitrogen environment and an RF electric field, and enabling the plasma to react with resin on the walls of the through hole and the blind hole to generate carbon dioxide, hydrogen fluoride and water; and C) horizontal adhesive removal: processing the through hole and the blind hole by chemical potion in a horizontal adhesive removal method. Firstly, the blind hole and the through hole are subjected to the plasma adhesive removal, the generated carbon dioxide, hydrogen fluoride and water can be absorbed without residuals in the blind hole, and then the blind hole and the through hole are subjected to horizontal adhesive removal to effectively remove tiny residual adhesives on the bottom of the blind hole and clean the blind hole.

The invention provides a method for preparing carbon monofluoride or fluorocarbon through inner circulation of fluorine. The method comprises the following steps of: (1) firstly passivating a reaction system, and then loading the pretreated graphite or carbon material into a reaction kettle with a cycling passage; (2) adding argon or nitrogen into the reaction kettle, adding fluorine to obtain the fluorine nitrogen or fluorine argon mixed gas; (3) heating the reaction kettle, setting and maintaining a reaction temperature and reaction pressure, and stopping the heating after the reaction is carried out for 1 to 70h under the inner circulation working condition; and (4) taking out the carbon monofluoride or fluorocarbon when the reaction kettle is cooled to the room temperature. The invention also provides a synthesizing device for preparing the carbon monofluoride or fluorocarbon through the inner circulation of the fluorine. The carbon monofluoride or fluorocarbon is synthesized by adopting the fluorine nitrogen mixed gas with high concentration of fluorine, the passivated reaction system, automatic control of a remote computer and a novel fluorine inner circulation process. The cost is low, the safety is high, the yield is high, and the fluorine-carbon ratio of a product is precisely controlled.

The invention discloses abrasion-resistant paint and a preparation method thereof. The paint comprises a first component and a second component, wherein the first component is double-component composition formed by mixing of a component A and a component B in a ratio of 1:1, the component A in the first component comprises components as follows: E-20 epoxy resin, silicon carbide micro powder, carbon monofluoride and a coupling agent; the component B in the first component comprises components as follows: methyl methacrylate, butyl acrylate, aluminum isopropoxide, triethoxy vinyl silane and 20-25 parts of a solvent; the second component comprises components as follows: a curing agent, an antifoaming agent, a leveling agent and a solvent. The components A and B in the first component are prepared separately and then mixed, and finally, the first and second components are cured to obtain the abrasion-resistant paint.

A taggant comprising at least one perfluorocarbon compound surrounded by a polyphosphazene compound. The polyphosphazene compound has the chemical structure:

wherein G₁ and G₂ are pendant groups having different polarities, m is an integer greater than or equal to 100, and each of A and B is independently selected from hydrogen, an alkyl, an alkene, an alkoxide, a polyether, a polythioether, a siloxane, and —X(CH₂)_nY¹(CH₂)p₁Y²(CH₂)p₂ . . . Yⁱ(CH₂)p_iCH₃, where n ranges from 1 to 6, X and Y are independently selected from oxygen, sulfur, selenium, tellurium, and polonium, and p₁ through p_i range from 1 to 6. Cyclic polyphosphazene compounds lacking the A and B groups are also disclosed, as are methods of forming the taggant and of detecting an object.

To provide a purification adsorbent capable of effectively removing impurities contained in a perfluorocarbon and obtaining a perfluorocarbon reduced in the impurity content to 1 ppm by mass or less; a process for producing the adsorbent; high-purity octafluoropropane or octafluorocyclobutane; processes for purifying and for producing the octafluoropropane or octafluorocyclobutane; and uses thereof. Purification is performed using a purification adsorbent produced by a method comprising (1) washing an original coal with an acid and then with water, (2) deoxidizing and/or dehydrating the original coal, (3) re-carbonizing the original coal at a temperature of from 500 to 700° C. and (4) activating the original coal at a temperature of from 700 to 900° C. in a mixed gas stream containing an inert gas, carbon dioxide and water vapor.

The invention relates to the field of surface treatment of cookware, in particular to a method for preparing a wear-resistant non-stick pan coating. By weight, 100 parts of water, 20-40 parts of polytetrafluoroethylene, 24-40 parts of polyethersulfone resin, 6-12 parts of polyetheretherketone, 2-5 parts of polymethylvinylsiloxane and 0.003-0.1 part of an alane N,N-dimethylethylamine complex are heated to 450-550 DEG C and stirred for 5-10 h, then 1-3 parts of nano graphene oxide, 2-4 parts of carbon monofluoride, 2-4 parts of mica powder and 0.5-1 part of distearyloxyisopropoxyaluminate are added, stirring is carried out for 2-5 h, then 1.5-3.5 parts of a coating reinforcing agent is added, and a wear-resistant non-stick pan paint is obtained; then the obtained wear-resistant non-stick panpaint is applied to the inner surface of a pretreated metal pan, then the metal pan is placed in a constant-temperature drying oven, drying is carried out for 15-30 min at 250-350 DEG C, and the wear-resistant non-stick pan is obtained.

The invention relates to a teflon thin film with the high light transmitting and dewatering functions and a preparation method and application thereof. According to the preparation method, a radio frequency magnetron sputtering method is adopted for sputtering the teflon thin film on a substrate. The method includes the preparation conditions that background vacuum pressure is 1*10<6>-2*10<3>Pa, the volume proportion of argon pumped in to carbon tetrafluoride is 10:1-100:1, and working air pressure is 0.5-2.0Pa; and sputtering power is 10-100W, the substrate temperature is 25-300 DEG C, and sputtering time is 15-60 minutes. By means of the teflon thin film with the high light transmitting and dewatering functions and the preparation method and application thereof, the radio frequency magnetron sputtering method is adopted for depositing the teflon thin film on the substrate, so that adhesive force to the substrate by the thin film is increased; and moreover, fluorocarbon gas like CF4 is added into Ar flow, and thus the deposition rate and fluorine content of the thin film can be effectively increased. A certain proportion of CF4 gas is mixed into the argon carrier gas pumped in to serve as supplemental gas, and the problems that F ions at the C-F chain breaking part lose due to glow discharging and thin film quality is lowered are solved.

The invention discloses a coating material for preventing an engine crankshaft from being locked, and a preparation method and an application method of the coating material. The coating material comprises the following raw materials in parts by weight: PAG (Polyalkylene Glycol ethers) polyether base oil, modified plant-based synthetic ester oxide sunflower oil, epoxy resin, organic molybdenum, tungsten disulfide powder, tungsten diselenide powder, carbon monofluoride powder, polyphenyl, a fire retardant, an antiwear agent and an antioxidant. The coating material is coated on a crankshaft neck surface and/or bearing bush surface between a crankshaft neck and a bearing bush (tile), so that a protective coating which is lubricant enough, and not easy to wash off or damage, and can bearing extremely high temperature is provided under the condition that the engine oil cannot provide effective lubricating due to poor quality, or cannot provide an enough lubricating effect between the crankshaft and a connecting rod due to reduction of the engine oil, the coating material has excellent waterproof properties, anti-rust characteristics, anti-corrosion property, and micro-grinding resistance on metal parts, can form solid dry film lubrication under the environment above 200 DEG C, and can play the roles in lubricating and preventing metal from being locked by sintering at the temperature which can be up to 1400 DEG C, and the locking phenomenon between the crankshaft and the connecting rod caused by dry friction between the tile and the crankshaft is effectively avoided.

The invention discloses a sodium-perfluorocarbon primary battery and relates to a sodium battery. The sodium-perfluorocarbon primary battery is provided with a positive electrode, a negative electrode, a diaphragm and an electrolyte solution, wherein the positive electrode takes perfluorocarbon as an active substance; a main body of the perfluorocarbon is (CFx), and x is ranged from 0.2-1.2; the active substance comprises 20-100 percent of perfluorocarbon by mass; the electrolyte consists of a solvent, an electrolyte and an additive. The commercial perfluorocarbon, including carbon monofluoride, fluoride petroleum coke, fluoride carbon nano tube, fluoride carbon fibers, fluoride graphene and the like, is used as a main body active substance of the positive electrode of the sodium-perfluorocarbon primary battery; the sodium metal is used as the negative electrode; the electrolyte solution which takes an organic solution as the solvent and contains the sodium salt electrolyte and the diaphragm form a primary battery system which discharges at the constant current density of 20mA/g, and the mass specific capacity can be more than 800mAh/g. The sodium-perfluorocarbon primary battery has the characteristics of high discharging capacity, steady discharging level, environment friendliness and the like.

The invention discloses a preparation method of a high-performance fluorinated peanut shell hard carbon electrode material. The method comprises the following steps of pulverizing peanut shells, and cleaning the peanut shells with deionized water once to remove the water-soluble impurities; soaking the peanut shells in a KOH solution, activating, drying, carrying out high-temperature pyrolysis for4-6 hours under the protection of inert gas, and after the pyrolysis is finished, cooling to room temperature so as to obtain a pyrolytic carbon material; washing the pyrolytic carbon material to beneutral, drying, grinding the pyrolytic carbon material into powder, fluorinating the pyrolytic carbon material obtained in the step 4 by adopting a gas-phase fluorination method, wherein the fluorination gas is mixed gas of fluorine gas and nitrogen gas; keeping the fluorination temperature at 200-300 DEG C for 3-5 hours, and cooling to obtain a carbon fluoride material; uniformly mixing the carbon fluoride material with carbon black and a binder in proportion, uniformly coating an aluminum foil with an NMP, and drying to obtain the high-performance fluorinated peanut shell hard carbon electrode material. The high-energy-density carbon fluoride material can be obtained and used for a lithium primary battery, and the specific capacity of a battery can be remarkably improved.

The invention discloses a fluorocarbon-modified super-hydrophobic material, which is prepared from silicon rubber, a vulcanizing agent, a fluorocarbon material, polypropylene and an aid serving as raw materials, wherein the static contact angles of the raw materials are respectively greater than 150 degrees, and the drift angles are respectively smaller than 10 degrees; the vulcanizing agent is one or more of TMTD (Tetramethylthiuram Disulfide), PDM (N,N'-m-Phenylenedimaleimide), t-butyl perbenzoate and tertiary capryl peroxyester; the fluorocarbon material is prepared by fluorating a carbon material; the carbon material is one or more of carbon black, active carbon, coke, a carbon nanotube and graphene; and the aid is one or more of stearic acid, magnesium stearate and zinc stearate. A preparation method of the fluorocarbon-modified super-hydrophobic material comprises the following steps of: (1) smelting a premix compound; (2) fluorating a carbon material; (3) extruding and pelletizing; (4), performing hot pressing and cold pressing; and (5) grinding and removing scraps. The super-hydrophobic material has a remarkable super-hydrophobic effect, a simple processing method and a good application prospect. Moreover, the inside and the surface of a product substrate are provided with the same component, so that a needed super-hydrophobic surface can be formed by grinding once again when the surface is damaged.

Disclosed are lithium/carbon monofluoride batteries suitable for long term use at highly elevated temperatures. Organosilicon electrolytes having low vapor pressure and high flash points are used, along with lithium salts and ceramic separators. Methods of using these batteries at high temperatures are also disclosed.

The invention relates to a carbon fluoride material surface modification method and a product and application thereof. The surface modification method comprises the following steps: putting carbon fluoride in a pure hydrazine solution or a solution containing hydrazine, and reacting for 5-24 hours at the temperature of 25-100 DEG C, wherein the mass ratio of the carbon fluoride to the hydrazine is 1:1.55-1:5; filtering a product obtained through the reaction, collecting a filter residue, washing the filter residue by using a solvent, and drying the washed product under an inert atmosphere, wherein the dried matter is a surface modified carbon fluoride material. The surface modified carbon fluoride material provided by the invention effectively reduces the voltage delay of the carbon fluoride and greatly improves the high-rate discharge performance of the carbon fluoride.

The invention discloses a copper base powder metallurgy friction reducing material and a preparing method of the copper base powder metallurgy friction reducing material. The material is prepared from the following ingredients in parts by weight: 72 to 75 parts of mixing copper powder, 5 to 8 parts of lead powder, 3 to 7 parts of zinc oxide, 2 to 5 parts of metallurgy carbon black, 4 to 8 parts of carbon monofluoride, 4 to 8 parts of micro wax powder, 3 to 7 parts of molybdenum powder, 10 to 14 parts of iron powder, 2 to 5 parts of cobalt powder and 3 to 6 parts of silicon carbide powder. The preparing method comprises the following steps of mixing, pressing, sintering, shaping and oil soaking processing. The method has the advantages that the raw materials can be easily obtained, the price is low, the preparing process is simple, the parameters can be easily controlled, the production process is safe, the environment is protected, the method is suitable for large-scale industrial production, and the like.

Disclosed are carbon monofluoride cathode batteries suitable for use at highly elevated temperatures. Rather than using a pure lithium anode, the anode has a base material selected from the group consisting of silicon, germanium and tin, where the base material is lithiated. This renders the anode more resistant to heat. Selected electrolytes are used which also contain lithium salts. Methods for using these batteries at high temperatures are also disclosed.

The invention discloses a high-strength quick-drying water-resistant adhesive, which is prepared from the following components in parts by weight: 19-22 parts of poly (aryl ether sulfone ketone) modified resin, 8-13 parts of silicon carbide micro powder, 4-9 parts of carbon monofluoride, 17-22 parts of an amino-functional silicone emulsion,10-12 parts of a perfluoro acrylic emulsion, 15-19 parts of diisocyanate, 18-21 parts of base latex, 25-30 parts of deionized water, 8-13 parts of a mould inhibitor, 14-19 parts of a flash rust remover, 18-26 parts of a flatting agent, 10-18 parts of a thickener, 13-17 parts of epoxy resin, 8-13 parts of water glass, 9-14 parts of sodium fluosilicate, 8-14 parts of graphite powder, 17-20 parts of a filler, 14-19 parts of an antioxidant, 21-26 parts of nano-silica, 10-16 parts of a curing agent, 7-10 parts of a coupling agent, 3-9 parts of a fire retardant, 17-26 parts of sodium fluosilicate, 9-14 parts of graphite powder, 15-19 parts of wood fiber powder, 2-9 parts of carbon fiber powder, 12-19 parts of an antifoaming agent, 4-9 parts of a fire retardant, 1-3 parts of a catalyst, 10-14 parts of a catalyst catcher and 3-9 parts of a micromolecule chain extender.