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70 results about "Allotropy" patented technology
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Allotropy or allotropism (from Ancient Greek ἄλλος (allos), meaning 'other', and τρόπος (tropos), meaning 'manner, form') is the property of some chemical elements to exist in two or more different forms, in the same physical state, known as allotropes of the elements. Allotropes are different structural modifications of an element; the atoms of the element are bonded together in a different manner. For example, the allotropes of carbon include diamond (the carbon atoms are bonded together in a tetrahedral lattice arrangement), graphite (the carbon atoms are bonded together in sheets of a hexagonal lattice), graphene (single sheets of graphite), and fullerenes (the carbon atoms are bonded together in spherical, tubular, or ellipsoidal formations). The term allotropy is used for elements only, not for compounds. The more general term, used for any crystalline material, is polymorphism. Allotropy refers only to different forms of an element within the same phase (i.e.: solid, liquid or gas states); differences in these states alone would not constitute examples of allotropy.
Stable shaped particles of crystalline organic compounds
InactiveUS7427413B2High temperatures may be avoidedBiocidePowder deliveryCrystallographyChemical compound
The present invention provides storage stable, shaped particles of allotropic organic compounds. The particles of the present invention can be shaped according to the desired application. Preferred shapes of such particles are microspheres, particularly those having diameters of about 1 to about 1,000 microns. The stable shaped particles of the present invention are particularly well-suited to the fabrication of pharmaceutical formulations, particularly where sustained release and uniform bioavailability are desired. The storage stable particles are formed by a solid state crystallization of allotropic organic compounds. The solid state crystallization process of the present invention affords a means for achieving a storage stable crystalline form of said allotropic compound without loss or deterioration of the original particle dimensions.
Owner:SKENDI FINANCE
Carbon based nonvolatile cross point memory incorporating carbon based diode select devices and mosfet select devices for memory and logic applications
The present disclosure is directed toward carbon based diodes, carbon based resistive change memory elements, resistive change memory having resistive change memory elements and carbon based diodes, methods of making carbon based diodes, methods of making resistive change memory elements having carbon based diodes, and methods of making resistive change memory having resistive change memory elements having carbons based diodes. The carbon based diodes can be any suitable type of diode that can be formed using carbon allotropes, such as semiconducting single wall carbon nanotubes (s-SWCNT), semiconducting Buckminsterfullerenes (such as C60 Buckyballs), or semiconducting graphitic layers (layered graphene). The carbon based diodes can be pn junction diodes, Schottky diodes, other any other type of diode formed using a carbon allotrope. The carbon based diodes can be placed at any level of integration in a three dimensional (3D) electronic device such as integrated with components or wiring layers.
Owner:NANTERO
Systems and methods for automated image recognition of implants and compositions with long-lasting echogenicity
InactiveUS20190053790A1Increase awarenessComputationally efficientImage enhancementImage analysisDiagnostic Radiology ModalityUltrasound contrast media
Systems and methods for imaging an object that are capable of capturing an image or images of the object using an imaging modality, automatically detecting and analyzing the image or images by way of converting the image or images to at least one binary image, and analyzing the at least one binary image to extract and / or segment regions-of-interest (ROIs) from the at least one binary image. The object can be or include an implantation, occlusion, medical device, body lumen, tissue, organ, duct, and / or vessel. The imaging modality can be or include X-ray, CT, MRI, PET, and / or ultrasound, or any combination thereof. Also included are compositions of soft, implantable materials with one or more carbon-based material, nanomaterial, and / or allotrope present in an amount sufficient as an ultrasound contrast agent effective for days, months, or years and which compositions are useful in the automated imaging methods of the invention.
Owner:CONTRALINE INC
Methods and structures for reducing carbon oxides with non ferrous catalysts
A method of reducing a gaseous carbon oxide includes reacting a carbon oxide with a gaseous reducing agent in the presence of a non-ferrous catalyst. The reaction proceeds under conditions adapted to produce solid carbon of various allotropes and morphologies, the selective formation of which can be controlled by means of controlling reaction gas composition and reaction conditions including temperature and pressure. A method for utilizing a non-ferrous catalyst in a reactor includes placing the catalyst in a suitable reactor and flowing reaction gases comprising a carbon oxide with at least one gaseous reducing agent through the reactor where, in the presence of the catalyst, at least a portion of the carbon in the carbon oxide is converted to solid carbon and a tail gas mixture containing water vapor.
Owner:SEERSTONE
Application of graphdiyne in metal ion batteries and super-capacitors
InactiveCN103943373AImprove electrochemical performanceHigh specific capacityHybrid capacitor electrodesCell electrodesPotassiumLithium-ion battery
The invention belongs to the field of metal ion batteries and super-capacitors, and particularly relates to an application of materials of graphdiyne which is an allotrope of carbon in electrode materials of the metal ion batteries and the super-capacitors. Thin-film materials of the graphdiyne which is the allotrope of the carbon are used as negative electrode materials of the metal ion batteries or the super-capacitors. A large-area graphdiyne thin film is formed on the surface of a copper sheet to be used as the negative electrode materials of the metal ion batteries and the super-capacitors, and therefore the metal ion batteries and the super-capacitors obtain excellent electrochemical performance which comprises higher specific capacity, outstanding rate performance and ultralong cycle life. Research results show that graphdiyne is a negative electrode material, with high potential, of lithium ion batteries, and can be used as negative electrode materials of batteries of other metal ions (such as sodium and potassium).
Owner:INST OF CHEM CHINESE ACAD OF SCI
Methods for using metal catalysts in carbon oxide catalytic converters
InactiveUS20150078981A1Promote lowerReduce metal oxideMaterial nanotechnologyCarbon compoundsSolid carbonWater vapor
A method of reducing a gaseous carbon oxide includes reacting a carbon oxide with a gaseous reducing agent in the presence of a steel catalyst. The reaction proceeds under conditions adapted to produce solid carbon of various allotropes and morphologies the selective formation of which can be controlled by means of controlling reaction gas composition and reaction conditions including temperature and pressure. A method for utilizing a steel catalyst for reducing carbon oxides includes placing the steel catalyst in a suitable reactor and flowing reaction gases comprising a carbon oxide with at least one gaseous reducing agent through the reactor where, in the presence of the steel catalyst, at least a portion of the carbon in the carbon oxide is converted to solid carbon and a tail gas mixture containing water vapor.
Owner:SEERSTONE
Resistive Change Elements Incorporating Carbon Based Diode Select Devices
ActiveUS20180197918A1Solid-state devicesSemiconductor/solid-state device manufacturingElectrical resistance and conductanceCarbon nanotube
The present disclosure is directed toward carbon based diodes, carbon based resistive change memory elements, resistive change memory having resistive change memory elements and carbon based diodes, methods of making carbon based diodes, methods of making resistive change memory elements having carbon based diodes, and methods of making resistive change memory having resistive change memory elements having carbons based diodes. The carbon based diodes can be any suitable type of diode that can be formed using carbon allotropes, such as semiconducting single wall carbon nanotubes (s-SWCNT), semiconducting Buckminsterfullerenes (such as C60 Buckyballs), or semiconducting graphitic layers (layered graphene). The carbon based diodes can be pn junction diodes, Schottky diodes, other any other type of diode formed using a carbon allotrope. The carbon based diodes can be placed at any level of integration in a three dimensional (3D) electronic device such as integrated with components or wiring layers.
Owner:NANTERO
Nanometer alloy anti-cancer drug with functions of independent targeting and imaging, and preparation method thereof
ActiveCN105396149AFlexible adjustment of fine compositionFlexible adjustment of biocompatibilityHeavy metal active ingredientsEnergy modified materialsCarbideAlloy
The invention relates to a nanometer alloy anti-cancer drug with functions of independent targeting and imaging, and a preparation method thereof, and belongs to the technical field of anti-cancer drugs. The nanometer alloy anti-cancer drug mainly comprises a metal, a metal compound and a nonmetal, wherein the metal comprises at least one selected from precious metal components such as Au, Ag, Pt, Cu, Ru, Pd, Rh, Re, Os and Ir and is named a first component, the nonmetal is at least one selected from nonmetal element components such as B, C, Si, O, S and Se and is named a second component, O exists in the form of the metal oxide or the hydroxyl OH or carboxyl COOH on the particle surface, S and Se exist mainly in the form of the sulfide or selenide formed from S or Se and the metal, B and Si are doped in the metal to form the alloy, and C exists in the form of the carbon allotrope, or the surface-coated organic carbon, or the metal carbide formed from C and the metal.
Owner:郑州天兆医疗科技有限公司
Black phosphorus-red phosphorus heterostructure material, as well as preparation method and application thereof
InactiveCN106179429AExcellent visible light catalytic degradation performanceEasy to makePhysical/chemical process catalystsBlack phosphorusPhotochemistry
The invention is applicable to the field of photocatalyst materials, and provides a black phosphorus-red phosphorus heterostructure material, a preparation method and an application thereof. The black phosphorus-red phosphorus heterostructure material is composed of red phosphorus and black phosphorus, two allotropes of phosphorus atoms, the general formula is P, and the mass of the black phosphorus-red phosphorus heterostructure material is 100%. Calculated, the mass percentage of the black phosphorus is 30-70%. The black phosphorus-red phosphorus heterostructure material has a good performance of visible light catalytic degradation of organic pollutants, and is expected to become a new type of non-metallic high-efficiency photocatalytic environmental treatment material. The preparation method of the black phosphorus-red phosphorus heterostructure material of the present invention has the advantages of simple preparation process, low cost, high yield, good repeatability, rapidity and controllable synthesis conditions.
Owner:SHENZHEN RES INST THE CHINESE UNIV OF HONG KONG
Method for the manufacture of cyclododecasulfur
The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.
Owner:FLEXSYS HLDG INC
Carbon oxide reduction with intermetallic and carbide catalysts
InactiveUS20160031710A1Easy to set upLow costMaterial nanotechnologyCatalyst activation/preparationSolid carbonWater vapor
A method of reducing a gaseous carbon oxide includes reacting a carbon oxide with a gaseous reducing agent in the presence of an intermetallic or carbide catalyst. The reaction proceeds under conditions adapted to produce solid carbon of various allotropes and morphologies, the selective formation of which can be controlled by means of controlling reaction gas composition and reaction conditions including temperature and pressure. A method for utilizing an intermetallic or carbide catalyst in a reactor includes placing the catalyst in a suitable reactor and flowing reaction gases comprising a carbon oxide with at least one gaseous reducing agent through the reactor where, in the presence of the catalyst, at least a portion of the carbon in the carbon oxide is converted to solid carbon and a tail gas mixture containing water vapor.
Owner:SEERSTONE
Substrate for a field emitter, and method to produce the substrate
InactiveUS20110254432A1High currentLong-term durability (stability)Material nanotechnologyCarbon compoundsComputed tomographyField electron emission
A substrate for a field emitter suitable for use in computed tomography has a coating with carbon hybrid structures based on the allotropes graphite, graphene and nanotubes. The field emitters are based on graphite layer structures. A substrate for field emitters is achieved for the first time that uses “graphite combs” protruding and aligned essentially perpendicular to the substrate as well as hybrid materials from these combs with CNTs supported between them on a conductive substrate.
Owner:SIEMENS AG
Carbon-series/active-substance compound and preparation method thereof
InactiveCN103579625AAvoid disintegrationInhibit growthCell electrodesSecondary cellsElectric capacityLithium–air battery
The invention discloses a carbon-series / active-substance compound and a preparation method thereof. The compound comprises: active particles with size of 1-100 nm and one-dimension or two-dimension carbon skeleton which are mutually connected via three-dimension carbon material, and the compound possesses the capability of storing both faraday charges and nonfaraday charges. The addition of multi-dimension carbon allotrope helps to substantially inhibit agglomeration phenomenon of active substances during synthesis and disintegration phenomenon of the active substances during electric charging-discharging, and a multi-dimension conduction network structure after stacking is formed, so that the conductive capability of the material is improved, and further the charging-discharging rate of the material is improved. The invention additionally provides a simple green synthetic method, and thus the carbon-series / active-substance compound possesses batch production potential, and becomes a potential green-energy storage material applicable to lithium ion secondary batteries, super-capacitance lithium-air batteries.
Owner:黄炳照
Non ionic/electrolyte, liquid/gaseous, mechanically refined/nanoparticle dispersion Building Materials/High Wear-Heat Resistant Part Brushes, Windings, Battery Cells, Brake Pads, Die Cast Molding, Refrigeration, Polarized/Integrated Optical, Spectrometric Processors, Central Processor Unit Processors, Electronic Storage Media, Analogous Series/Parallel Circuit Generators/Transceivers, Particulate Matter PM Carbonaceous-Polyamide, Crystalline Silica, and Cellulosic Filament Extraction/Miners Suit
The variable hydraulic press and distillation reservoir manufacture process scientific formula non ionic or electrolyte mechanically refined and nanoparticle, allotropes of carbon dispersion preform slurry extrusion, with or without ionic suspension element for manufactured Preform slurry high wear-heat resistant parts electronic component composite coils, composite windings, annealing, drawn, spun, coils, windings, wire, woven textile mesh, shielding, brushes, inductors, antinode couplers, electric rheostats, starters, motors, alternators, generators, ionic suspension element enhanced composite coils, composite windings, annealing, drawn, spun, coils, windings, wire, woven textile mesh, shielding, brushes, capacitors, battery cells, rheostats, electronic resistors, transformers, transducers, rectifiers, power supplies, or heat sinks Preform slurry high wear-heat resistant parts aerospace, automotive, and transportation brake calipers, rotors, pads, and bushings Preform slurry non ionic or electrolyte mechanically refined and nanoparticle high wear-heat resistant parts precision casting molds 2.5 phase die cast molding and Building Materials fine concrete, mortar, brick, and tiles.
Owner:MATTHEWS ROBERT RICHARD
Method for removing sulfur from a gas stream
A method for removing elemental sulfur from a hot gas stream, such as an autoclave vent gas, while simultaneously cooling the gas stream. The method results in conversion of sulfur in the hot gas stream to the form of solid, non-sticky sulfur allotropes such as rhombic sulfur while avoiding formation of sticky sulfur allotropes such as monoclinic sulfur, thereby avoiding scaling and fouling of plant equipment. According the method, the hot gas stream is contacted with an aqueous medium containing a particulate material inside a quench vessel having a first inlet for the hot gas stream, a second inlet for the aqueous medium, and an outlet for removing a sulfur-containing liquid fraction from the vessel. At least a portion of the sulfur contained in the hot gas stream, along with other condensable materials, becomes incorporated into the aqueous medium and is subsequently drained from the vessel. The aqueous medium may comprise a slurry of tailings or other waste material, and the particulate matter contained in the aqueous medium may provide nucleation sites for the preferential formation of non-sticky solid forms of sulfur.
Owner:HATCH LTD
Nanotube-based high energy material and method
InactiveCN1347389AImprove adhesionMaterial nanotechnologyElectrode manufacturing processesLithiumHigh energy
A carbon-based material containing an allotrope of carbon, such as single-walled carbon nanotubes, is capable of accepting and intercalated alkali metal. The material exhibits a reversible capacity ranging from approximately 650 mAh / g-1,000 mAh / g. The high capacity of the material makes it attractive for a number of applications, such as a battery electrode material. A method of producing a single-walled carbon nanotube material includes purifying an as-recovered nanotube material, and depositing the purified material onto a conductive substrate. The coated substrate is incorporated into an electrochemical cell, an its ability to accept intercalated materials, such as an alkali metal (e.g.-lithium) is measured.
Owner:THE UNIV OF NORTH CAROLINA AT CHAPEL HILL
Electrodes and applications
InactiveUS20130233595A1Lamination ancillary operationsHybrid capacitor electrodesCapacitanceCarbon nanotube
Disclosed herein is an electrode comprising, a capacitive carbon material located on at least one surface of a thin. The capacitive carbon material typically comprises functionalized ultra-long carbon nanotubes and optionally another carbon allotrope or mixture of carbon allotropes with sufficiently high active surface area. . Methods of forming such electrodes are also disclosed.
Owner:MULTIPURE INT
Two-dimensional nonmetal photocatalytic composite and preparation method and application thereof
InactiveCN109731587AWide photoresponse rangeImprove photocatalytic activityPhysical/chemical process catalystsHydrogen productionHeterojunctionOrganic solvent
The invention discloses a two-dimensional nonmetal photocatalytic composite and a preparation method and application thereof. The two-dimensional nonmetal photocatalytic composite is formed by combining two phosphorus allotropes, black phosphorus and red phosphorus, wherein the two-dimensional nonmetal photocatalytic composite is a direct Z-type heterojunction material. The invention also providesa preparation method of the two-dimensional nonmetal photocatalytic composite, which comprises the steps of mixing red phosphorus and an organic solvent to obtain a suspension, and subjecting the suspension to hydrothermal reaction at a certain temperature to obtain the two-dimensional nonmetal photocatalytic composite. The invention also provides application of the two-dimensional nonmetal photocatalytic composite in photocatalytic full decomposition of water. The two-dimensional nonmetal photocatalytic composite provided herein can ensure a wide light response range and provide better separation and transport of photo-generated carriers, and is a two-dimensional nonmetal photocatalyst material with high photocatalytic activity.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Electronically Abrupt Borophene/Organic Lateral Heterostructures and Preparation Thereof
ActiveUS20180222755A1Non-metal conductorsFinal product manufactureSimple Organic CompoundsChemical compound
Articles comprising a boron allotrope and an organic compound having a lateral interface one with the other, together with method(s) of preparation of such articles.
Owner:NORTHWESTERN UNIV
Thin battery with longer life time
The present invention relates to a thin battery with longer life time. The thin battery has an anode material and a cathode material applied as pastes on one or more separator paper layers there between. The battery also has an aqueous electrolyte solution, binders and additives. The cathode paste furthermore has conductive material at least partly of carbon nanotubes. The thin battery has an anode material and a cathode material applied as pastes on one or more separator paper layers there between. The battery also has an aqueous electrolyte solution, binders and additives. The cathode paste furthermore has a conductive material at least partly of carbon nanotubes. The conductive material can additionally have one or more other allotropes of carbon, such as carbon powder, e.g. graphite powder.
Owner:恩福塞尔公司
Bio-mineralized cathode and anode materials for electrochemical cell
ActiveUS20140363635A1Increase energy densityGuaranteed specific capacityLight-sensitive devicesCell electrodesLithiumOxygen
A bio-mineralized composition for use in an electrochemical cell is described. The bio-mineralized composition may comprise a material represented by general formula y[Li1±xMaPOc).(1-y)[Mb(POc)3±d(Ap)1±e].Cz or y[Li1±xMaOc].(1-y)[Mb(POc)3±d(Ap)1±e].Cz or y[Li1±xMaOc].(1-y)[Mb(POc)3±d(Ap)1±e].Cz or y[Li1±xMaOc].(1-y)[Mb(POc)3±d(Ap)1±e].Cz or y[Ma].(1-y)[Mb(POc)3±d(Ap)1=e].Cz or y[Li1±xMaSiaOc].(1-y)[Mb(POc)3=d(Ap)1±e].Cz, or y[Li1±xMaOc].w[Li2±xMaOc].(1-y-w)[Mb(POc)3±d(Ap)1±e].Cz, or y[Li1±xMaBOc].(1-y)[Mb(POc)3±d(Ap)1±e].Cz, or y[MaOx].(1-y)[Mb(POc)3±d(Ap)1±e].Cz where M represents at least one element; Ap represents group of mixtures; C represents Carbon or its allotropes; P represents element phosphorous; Si represents silicon; Li represents lithium; B represents boron; O represents oxygen and x, y, z, w, a, b, c, d and e represent a number.
Owner:CHARGE CCCV LLC
Flame-retardant epoxy resin compound and preparation method and application thereof
InactiveCN110527251AImprove temperature stabilityImprove flame retardant performanceEpoxyBlack phosphorus
The invention provides a flame-retardant epoxy resin compound and a preparation method and application thereof, and belongs to the technical field of flame-retardant materials. The provided flame-retardant epoxy resin compound is prepared from raw materials comprising the following components in parts by mass: 0.01-8 parts of black phosphorus; 1-100 parts of epoxy resin; 0.01-5 parts of a curing agent; and 0.01-1 part of a curing accelerator, wherein a mass fraction of the black phosphorus in the flame-retardant epoxy resin compound is less than or equal to 8%. In the provided flame-retardantepoxy resin compound, the black phosphorus is an allotrope of phosphorus, and has good temperature stability and flame retardancy. By adding the black phosphorus, electronic characteristics of the black phosphorus itself are utilized, so that the black phosphorus can form a good compound with epoxy resin molecular chains, and thereby the provided flame-retardant epoxy resin compound has good stability and mechanical properties. In addition, by adding the black phosphorus, flame retardancy of the flame-retardant epoxy resin compound is effectively improved.
Owner:山东玥能新材料科技有限公司
Allotrope of carbon having increased electron delocalization
Newly discovered allotrope of carbon having a multilayered nanocarbon array exhibits among other properties exceptional stability, electrical conductivity and electromagnetic frequency (emf) attenuation characteristics. Members of this new allotrope include nanocarbon structures possessing vast electron delocalization in multiple directions unavailable to known fullerene-characterized materials like carbon nano-onions (CNOs), multiwalled carbon nano-tubes (MWNTs), graphene, carbon nano-horns, and carbon nano-ellipsoids such that stabilizing electron delocalization crosses or proceeds between layers as well as along layers in multiple directions within a continuous cyclic structure having an advanced interlayer connectivity bonding system involving the whole carbon array apart from incidental defects.
Owner:STRUCTURED NANO CARBON LLC
Spinel prepared with waterworks sludge and preparing method thereof
The invention relates to spinel prepared with waterworks sludge and a preparing method thereof, which is in the field of sludge treatment. The method comprises the steps of step I: dry the waterworks sludge through natural drying, grind, dry and cool the sludge for standby application and get the sludge material; step II: add Al2O3 or Fe2O3 powder in the sludge material so that the molar ratio of Al and Fe in waterworks sludge is 5:1- 2:1, the activated carbon, the mass of graphite and other allotropes of carbon in the waterworks sludge is 5-15% of sludge material, and get the sludge treatment material; step III: mix the sludge treatment material evenly and grind it to make the particle size larger than 100 mesh sieve, mold the sludge treatment material, and get complete the method after drying and sintering or electric smelting. The spinel produced in the method of the invention has the properties like high melting point coefficient, heat-conducting property, good heat stability and good anti-alkali corrosion, therefore, it may replace the existing magnesia chromite refractory as an environmentally friendly refractory material.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
Methods for using metal catalysts in carbon oxide catalytic converters
InactiveCN104321274AEasy to set upLow costMaterial nanotechnologyCarbon compoundsSolid carbonPtru catalyst
A method of reducing a gaseous carbon oxide includes reacting a carbon oxide with a gaseous reducing agent in the presence of a steel catalyst. The reaction proceeds under conditions adapted to produce solid carbon of various allotropes and morphologies the selective formation of which can be controlled by means of controlling reaction gas composition and reaction conditions including temperature and pressure. A method for utilizing a steel catalyst for reducing carbon oxides includes placing the steel catalyst in a suitable reactor and flowing reaction gases comprising a carbon oxide with at least one gaseous reducing agent through the reactor where, in the presence of the steel catalyst, at least a portion of the carbon in the carbon oxide is converted to solid carbon and a tail gas mixture containing water vapor.
Owner:SEERSTONE
System and Method of Computing and Rendering the Nature of Molecules,Molecular Ions, Compounds and Materials
InactiveUS20110066414A1Data visualisationAnalogue computers for chemical processesDisplay deviceMaxwell's equations
A method and system of physically solving the charge, mass, and current density functions of pharmaceuticals, allotropes of carbon, metals, silicon molecules, semiconductors, boron molecules, aluminum molecules, coordinate compounds, and organometallic molecules, and tin molecules, or any portion of these species using Maxwell's equations and computing and rendering the physical nature of the chemical bond using the solutions. The results can be displayed on visual or graphical media. The display can be static or dynamic such that electron motion and specie's vibrational, rotational, and translational motion can be displayed in an embodiment. The displayed information is useful to anticipate reactivity and physical properties. The insight into the nature of the chemical bond of at least one species can permit the solution and display of those of other species to provide utility to anticipate their reactivity and physical properties.
Owner:MILLS RANDELL L
One-pack addition curable silicone composition, method for storing same, and method for curing same
Provided are a one-pack addition curable silicone composition compatible with both a good long-term storage property at room temperature under conditions whereby air is blocked to a constant level and the advance of an addition curing reaction at room temperature by being applied in a thin film of 1500 μm or less and exposed to air, which could not be obtained by conventional curable heat-dissipating grease, and a method for storing the same, and a method for curing this composition. A one-pack addition curable silicone composition having as essential ingredients: (A) organopolysiloxane having silicon-atom-bonded aliphatic unsaturated hydrocarbon groups and a specific kinematic viscosity; (B) one or more thermally conductive fillers selected from metals, metal oxides, metal hydroxides, metal nitrides, metal carbides, and allotropes of carbon; (C) organohydrogenpolysiloxane; and (D) a platinum group metal complex having an organic phosphorus compound represented by formula (1)R1x—P—(OR1)3-x (1)(R1 is a monovalent hydrocarbon group, x is 0-3) as a ligand.
Owner:SHIN ETSU CHEM IND CO LTD
Nano-diamond/carbon fiber carbon composite material and preparing method thereof
InactiveCN106498565ASignificantly improved thermal conductivityOvercoming the deficiency of low shear strengthArtifical filament manufactureCarbon compositesManufacturing technology
The invention discloses a carbon composite material composed by nano-diamond and carbon fiber, and a preparing method thereof. The preparing method comprises the steps of dissolving polyacrylonitrile polymer into a solvent dimethyl formamide; processing diamond which is artificially synthesized to obtain the nano-diamond; dispersing uniformly the nano-diamond into dimethyl formamide solution of the polyacrylonitrile polymer through ultrasonic waves, and adopting electrostatic spinning to obtain a nano-diamond polyacrylonitrile polymer nanometer composite fiber; conducting preliminary oxidization and carbonization on the nano-diamond polyacrylonitrile polymer nanometer composite fiber to obtain the nano-diamond / carbon fiber carbon composite material. The invention aims to provide an allotrope carbon composite material with a simple and convenient manufacturing technology, although compound component materials of the composite material have different structures and properties, the compound component materials are all composed of carbon; the carbon composite material integrates a peculiar property that both the diamond and the carbon fiber are carbon materials; meanwhile, the nano-diamond / carbon fiber carbon composite material has a wide application prospect.
Owner:ZHONGYUAN ENGINEERING COLLEGE
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