EP2825379A1 - Wärmeleitendes verbundelement auf basis von expandiertem graphit - Google Patents
Wärmeleitendes verbundelement auf basis von expandiertem graphitInfo
- Publication number
- EP2825379A1 EP2825379A1 EP13709828.1A EP13709828A EP2825379A1 EP 2825379 A1 EP2825379 A1 EP 2825379A1 EP 13709828 A EP13709828 A EP 13709828A EP 2825379 A1 EP2825379 A1 EP 2825379A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composite element
- thermally conductive
- expanded graphite
- conductive composite
- textile fabric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
- E05F15/643—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
- E05F15/668—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
- E05F15/681—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings operated by flexible elongated pulling elements, e.g. belts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
- F24D3/14—Tube and panel arrangements for ceiling, wall, or underfloor heating incorporated in a ceiling, wall or floor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
- F24D3/14—Tube and panel arrangements for ceiling, wall, or underfloor heating incorporated in a ceiling, wall or floor
- F24D3/148—Tube and panel arrangements for ceiling, wall, or underfloor heating incorporated in a ceiling, wall or floor with heat spreading plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0089—Systems using radiation from walls or panels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/02—Constructions of heat-exchange apparatus characterised by the selection of particular materials of carbon, e.g. graphite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/04—Inorganic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/302—Conductive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/12—Pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2419/00—Buildings or parts thereof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0869—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having conduits for fluids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/14—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/658—Members cooperating with flexible elongated pulling elements
- E05Y2201/672—Tensioners, tension sensors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/10—Adjustable
- E05Y2600/30—Adjustment motion
- E05Y2600/31—Linear motion
- E05Y2600/312—Horizontal motion
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/02—Fastening; Joining by using bonding materials; by embedding elements in particular materials
- F28F2275/025—Fastening; Joining by using bonding materials; by embedding elements in particular materials by using adhesives
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
Definitions
- the present invention relates to a thermally conductive composite element based on expanded graphite, a process for its production and its use.
- thermally conductive composite elements are used, for example, as heat-conducting in surface cooling and surface heating, such as floor, wall and ceiling heating, to distribute the votes of the surface cooling cold or the heat emitted by the surface heating heat in the area evenly and to this leave surrounding space to achieve a pleasant indoor climate.
- such composite elements usually comprise a heat conduction plate, in which a through-flow of a heat transfer medium tubular body, such as a coil or a Rohrmäander embedded.
- heat conduction plates can also be used without embedded therein tubular body, such as in the concrete core activation, in which heat conducting plates are arranged below a concrete ceiling, in which the Maschinenschömbare by the heat transfer medium tubular body is arranged.
- Expanded graphite is prepared by expansion of natural graphite by first intercalating graphite into an intercalating compound, such as sulfuric acid, before the graphite so treated is expanded by heating by a factor of 200 to 500.
- Graphite is known to consist of individual graphene layers in which carbon atoms are covalently bonded together, whereas the individual Layers are only weakly interconnected. Due to this structure, graphite has anisotropic properties and in particular an anisotropic thermal conductivity, wherein the thermal conductivity in the plane of the graphene layers is greater than in the direction perpendicular thereto.
- the graphite After expansion, the graphite is recompressed but at a lower density than the starting density such that the graphene layers of the graphite preferentially align perpendicular to the direction of pressure and the individual graphite aggregates formed in the expansion interlock, thereby eliminating the additive make of binders self-supporting, flat plates.
- Such plates have a high degree of anisotropy with regard to the thermal conductivity and a high thermal conductivity in the plane or surface of the plate.
- expanded graphite due to its high thermal conductivity and high porosity on a certain heat storage capacity.
- expanded graphite is comparatively soft, which is why expanded graphite heat conducting plates have a low material strength and low rigidity. Therefore, although they are basically self-supporting, these plates are not suitable for use in the construction sector without additional stiffeners.
- a heat conduction plate which comprises a solidified mixture of graphite contains phit particles and plastic particles, wherein the graphite particles are preferably made of expanded graphite.
- the mixture preferably contains 20 to 50 wt .-% plastic particles, such as polyvinyl chloride particles.
- plastic particles such as polyvinyl chloride particles.
- this object is achieved by the provision of a thermally conductive composite element which comprises at least one expanded graphite-containing molded body and at least one textile sheet arranged on at least one side of the molded body, wherein the at least one textile fabric is bonded to the molded body via an inorganic adhesive.
- the heat-conductive composite element of the present invention By thus considerably increasing the rigidity of the molded article by providing the fabric on at least one side of the expanded graphite-based molded article, in the heat-conductive composite element of the present invention, addition of organic fillers having a high fire load as set forth can be applied expanded graphite are dispensed with. Furthermore, since an inorganic adhesive which has no fire load is used for bonding the textile fabric to the expanded graphite molding, a thermally conductive composite element is obtained which has no fire load or at most a very low fire load.
- the composite element according to the invention is characterized by an excellent thermal conductivity, in particular in the plane and due to the comparatively low density of expanded graphite due to the expanded graphite contained in the molded body by a comparatively low weight.
- textile fabrics are understood as meaning all fabrics which contain fibers.
- the heat-conductive composite element according to the invention is particularly suitable for use in a surface cooling or in a surface heating, in particular in a floor, wall or ceiling heating.
- the composite element according to the invention according to a preferred embodiment of the present invention comprises one of a heat Transfermediunn, ie heating medium or cooling medium, flow-through tubular body, which is preferably embedded in the at least one expanded graphite-containing molded body.
- the tubular body may be partially or completely embedded in the at least one expanded graphite-containing shaped body, but it is particularly preferred that the tubular body is embedded completely and at least substantially centrally in the molded body containing at least one expanded graphite.
- the tubular body can also be embedded between the two shaped bodies, which can be achieved, for example, by virtue of the high compressibility of expanded graphite, in that the tubular body contains between the two expanded graphite Molded bodies is arranged and the structure thus produced is then pressed to compress the expanded graphite contained in the moldings and thus simultaneously embed the tubular body in the expanded graphite.
- the tubular body can be any tube body commonly used in surface cooling and surface heating, such as, for example, a meander-shaped or spiral-shaped tubular body. Regardless of the specific configuration of the tubular body contains the or one of the tubular body surrounding moldings two holes, one of which acts as an input for one end of the tubular body and the other as an output for the other end of the tubular body. To ensure good heat conduction between the pipe body and the expanded
- the tubular body made of plastic, ceramic, graphite or metal, such as copper is particularly preferred.
- the tubular body is purely optional, since the composite element according to the invention can also be used for room air conditioning without tubular bodies embedded therein, for example for concrete core activation, by arranging the composite element below a concrete ceiling, in which case the cold - or heat transfer medium flow through tubular body is arranged.
- the at least one shaped body is bonded to the textile fabric via an inorganic adhesive, because inorganic adhesives have the advantage of having a high bond strength, but no fire load or at most a low fire load.
- inorganic adhesives As inorganic fillers, it is possible to use all known ones, in particular inorganic adhesives selected from the group consisting of silicates, colloidal silicic acid, phosphates, oxides, sulfates, borates and any mixtures of two or more of the aforementioned types of adhesives.
- the inorganic adhesive between the molded article and the fabric is in an amount of from 10 to 1,000 g / m 2 , more preferably from 100 to 500 g / m 2, and most preferably from 200 to 300 g / m 2 for example, about 250 g / m 2 , provided.
- Geopolymers are generally silicate-based adhesives and, in the case of water glass, amorphous and water-soluble sodium, lithium and potassium silicates which have solidified from a melt, so that the term geopolymer comprises water glass.
- Water glass is particularly preferred for the composite element of the present invention, because water glass in addition to a high wettability on almost all surfaces and in particular by a high strength, high heat resistance and a fast curing is characterized. Apart from that, water glass is comparatively inexpensive.
- the rigidity of the molded body is considerably increased.
- the at least one textile fabric is selected from the group consisting of nonwovens, laid, woven, knitted, crocheted, felted, paper, paperboard and any mixtures of two or more of the aforementioned types of sheet.
- a textile fabric is understood to mean any fabric containing fibers, including paper and cardboard containing cellulose fibers. Good results are obtained, in particular, with fabrics and nonwovens, which is why they are particularly preferred according to the present invention as a textile fabric.
- the textile fabric provided in the composite element according to the invention may comprise fibers of all materials known to the person skilled in the art. Good results are obtained particularly with textile fabrics based on fibers selected from the group consisting of glass fibers, carbon fibers, hemp fibers, mineral fibers, cement-coated mineral fiber structures, cellulosic fibers and any mixtures of two or more of the aforementioned types of fibers. Due to their excellent tensile strength, glass fibers, carbon fibers and mineral fibers are particularly preferred, and because of their comparatively low price, glass fibers are very particularly preferred.
- the at least one textile fabric contained in the composite element according to the invention is a glass fiber fabric or a glass fiber nonwoven.
- the at least one textile fabric contained in the composite element according to the invention is constructed from fibers having a length of 0.1 to 100 mm, preferably of 1 to 50 mm and particularly preferably of 5 to 20 mm.
- the at least one textile fabric is made up of fibers which have a diameter of 1 to 100 ⁇ m, preferably of 5 to 50 ⁇ m and more preferably of 10 to 15 m.
- Thickness of 0.1 to 1, 0 mm, preferably from 0.2 to 0.8 mm and particularly preferably from 0.4 to 0.6 mm.
- the shaped body containing at least one expanded graphite which determines the shape of the composite element according to the invention, is at least substantially plate-shaped, wherein the at least one textile fabric on the top and / or bottom of the plate-shaped molding, So on one or the two largest surfaces of the molding is arranged.
- the at least one shaped body of the composite element according to the invention contains expanded graphite because it has a good thermal conductivity, in particular in the surface or plane, and also a certain heat storage capacity.
- expanded graphite is understood to mean graphite which is resistant to untreated natural graphite has expanded.
- such an expanded graphite is prepared by first intercalating a graphite in graphite, such as sulfuric acid, before the graphite thus treated is expanded by heating, for example by a factor of 200 to 500 and then back to a lower density than the initial density is compressed so as to produce a self-supporting, flat shaped body without the addition of binder.
- the expanded graphite is actually compressed, expanded graphite.
- this graphite is commonly referred to as expanded graphite.
- the at least one shaped body contains expanded graphite having a weight per unit area of 100 to 4,000 g / cm 2 , preferably 350 to 3,500 g / cm 2 and more preferably 500 to 2,000 g / cm 2 . According to a most preferred embodiment of the present invention
- the invention consists of at least one shaped body made of expanded graphite, ie this contains except expanded graphite no further components, ie in particular no components with high fire load, such as organic fillers.
- the shaped body containing at least one expanded graphite preferably has a thickness of 8 to 80 mm, preferably 10 to 50 mm and particularly preferably 12 to 25 mm.
- the composite element according to the invention comprises a tubular body, it is preferred that the composite element according to the invention comprises two moldings each containing expanded graphite and particularly preferably two expanded graphite moldings which are joined together by an inorganic adhesive.
- the composite element according to the invention has an edge protection.
- an edge protector is not only preferred to protect the edges of the composite element from mechanical damage, but also, in particular, to protect the composite element from the ingress of moisture.
- condensed water can form on the composite element, in particular in the case of rapid and large temperature changes, which can penetrate into the sides of the molded article without such edge protection, where it can lead to an undesirable loss of strength of the expanded graphite.
- a textile fabric, a L-shaped ausgestaltetes component, which preferably consists of metal or plastic, a U-shaped ausgestaltetes component, which preferably consists of metal or plastic, and / or a Painting to be provided.
- edge protection agents can be connected to the molding (s) in any desired manner and can preferably be plugged or glued onto the composite element, in which case, in particular, a hydrophobizing adhesive is used as the adhesive in order to place the molded article (s) in front of the latter Ingress of moisture over its edges to protect.
- a hydrophobic adhesive for example, an adhesive based on fluorine-containing acrylic can be used.
- a coating can be applied to one or more outer sides of the composite element and in particular to the at least one textile fabric in order to adapt the composite element to customer requirements.
- Suitable coating agents are primarily paints, varnishes, hydrophobizing agents, fire retardants and the like.
- Another object of the present invention is a method for producing a heat-conductive composite element according to at least one of the preceding claims, comprising the following steps: i) providing a first and a second plate-shaped preform, wherein the two preforms each contain expanded graphite and preferably consist of expanded graphite,
- step i) at least one textile fabric is applied to at least one of the later composite element opposite sides of the preforms and / or after step iii) at least one fabric on the top and / or bottom of the in step iii ) is applied.
- step d) applying a textile fabric to the adhesive-providing top or bottom side of the second preform, e) arranging the second preform obtained in step d) with its side facing the textile fabric downwards onto the tubular body of the structure obtained in step b) and
- step f pressing the structure obtained in step e).
- the inorganic adhesive is preferably applied over the whole area to the corresponding sides of the preforms.
- a preform is understood as meaning an expanded graphite molding, wherein the expanded graphite has a lower density than that of the expanded graphite in the final molding.
- the preform is transferred by pressing in step f) in the final molding.
- step b) and / or in step c) a preform is used which has two holes, one of which as an input for one end of the tubular body and the other as an output for the other end of the
- Tubular body acts. These holes may be introduced into the preform in any manner known to those skilled in the art, such as by punching.
- step i) two preforms are used, each consisting of expanded graphite having a density between 0.02 and 0.05 g / cm 3 .
- water glass is used as the inorganic adhesive in process steps a) and c).
- the structure is preferably pressed at a pressure of 0.02 to 5 MPa and preferably from 0.1 to 1 MPa.
- Another object of the present invention is the use of the previously described thermally conductive composite element in a surface cooling or in a surface heating and preferably in a floor, wall or ceiling heating.
- the heat-conductive composite elements described can be used for the planar cooling and heating of machines and apparatus, such as photovoltaic cells, temperature control chambers, power electronics housing, battery cells, in particular battery packs containing lithium-ion battery cells, for cooling medical equipment, such as Computed tomography and magnetic resonance tomographs, for the air conditioning of motor vehicles, such as buses, trucks and the like, for the air conditioning of ships and aircraft cabins, for tempering pools in swimming pools and the like.
- Figure 1 shows a schematic cross section of a composite element according to an embodiment of the present invention.
- the composite element 10 shown in the figure comprises two molded bodies 12, 12 ', each of which consists of expanded graphite, ie, which contain no further constituents other than expanded graphite, and in particular no organic fillers.
- the two shaped bodies 12, 12 ' are connected to one another via an inorganic adhesive 14, wherein the adhesive layer 14 in the figure is drawn thicker for reasons of clarity than it is in reality.
- a machine anderförmiger tubular body 16 is provided and embedded in the two moldings 12, 12 ', wherein of the tubular body 16 in the figure a total of 6 turns 18, 18' are shown.
- the tubular body is hollow on the inside and can therefore be flowed through by a heat transfer medium.
- Two plate-shaped preforms of expanded graphite were provided, each having an area of 625 x 625 mm 2 , a thickness of 15 mm, and a basis weight of 1, 000 g / m 2 .
- the above-mentioned commercial product having an application amount of 100 g applied and then punched in this Vorfornnling two holes, which serve as an input and output of the applied Rohrköpers.
- a glass fiber fleece having a basis weight of 60 g / m 2 and a thickness of 0.6 mm made of glass fibers with a diameter of 13 ⁇ was applied to the adhesive-coated side of the preform, pressed and allowed to dry the adhesive.
- a meander-shaped copper tube body was placed on the side of the first preform opposite the glass fiber fleece, and the preform with its side opposite the fiberglass fleece was placed downward thereon.
- This structure was then pressed in a mold with inserted spacers to the desired height.
- the residence time was 5 to 10 seconds.
- the composite element thus produced was stiff and had no fire load.
- Both the individual components of the composite element, ie adhesive, graphite and fleece, as well as the entire composite element were not flammable or flammable.
- samples of the produced composite element having a diameter of 45 mm and a height of 40 mm and 60 mm respectively did not burn when they were heat-treated at 800 ° C in a muffle furnace.
- the composite element showed no deflection when placed on a wooden frame with a bridge width of 2 cm. At a loading of the 10 kg composite element on an area of 70.9 cm 2 in the center of the panel, the measurable deflection was only 2 mm.
- a composite element was prepared as described in Example 1, except that an organic adhesive was used instead of the water glass adhesive and the preforms were made of a mixture of expanded Graphite and 20 wt .-% polyvinyl chloride particles as organic filler passed.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ceramic Engineering (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Laminated Bodies (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012204124A DE102012204124A1 (de) | 2012-03-15 | 2012-03-15 | Wärmeleitendes Verbundelement auf Basis von expandiertem Graphit |
| PCT/EP2013/054273 WO2013135515A1 (de) | 2012-03-15 | 2013-03-04 | Wärmeleitendes verbundelement auf basis von expandiertem graphit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2825379A1 true EP2825379A1 (de) | 2015-01-21 |
Family
ID=47891645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13709828.1A Withdrawn EP2825379A1 (de) | 2012-03-15 | 2013-03-04 | Wärmeleitendes verbundelement auf basis von expandiertem graphit |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US9612064B2 (de) |
| EP (1) | EP2825379A1 (de) |
| AU (1) | AU2013231509B2 (de) |
| CA (1) | CA2866607C (de) |
| DE (2) | DE102012204124A1 (de) |
| MY (1) | MY166331A (de) |
| SG (1) | SG11201405674VA (de) |
| WO (1) | WO2013135515A1 (de) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012206185A1 (de) * | 2012-04-16 | 2013-10-17 | Lindner Ag | Plattenelement für eine Heiz- oder Kühlfläche und Verfahren für deren Herstellung |
| DE102014002205A1 (de) | 2014-02-21 | 2015-08-27 | Sgl Lindner Gmbh & Co. Kg | Verbundelement zur Temperierung von Räumen sowie Verfahren zur Herstellung eines solchen Elements |
| DE102014004770A1 (de) * | 2014-04-01 | 2015-10-01 | Adam Opel Ag | Batteriepaket |
| DE112016001679T5 (de) * | 2015-05-08 | 2017-12-21 | Ningbo Sinyuan Industry Group Co., Ltd. | Wellenwärmeumwandlungsstruktur und deren Anwendung |
| RU2637532C2 (ru) * | 2015-07-06 | 2017-12-05 | Акционерное общество "УНИХИМТЕК" (АО "УНИХИМТЕК") | Теплораспределяющая панель и способ ее изготовления |
| RU2637531C2 (ru) * | 2015-07-06 | 2017-12-05 | Акционерное общество "УНИХИМТЕК" (АО "УНИХИМТЕК") | Теплораспределяющая панель и способ ее изготовления |
| WO2018106793A1 (en) * | 2016-12-06 | 2018-06-14 | Neograf Solutions, Llc | Energy regulating system and methods using same |
| WO2020210857A1 (de) * | 2019-04-18 | 2020-10-22 | Secvel Technolgies Gmbh | Tasche |
| US11376812B2 (en) | 2020-02-11 | 2022-07-05 | Helicoid Industries Inc. | Shock and impact resistant structures |
| US12275227B2 (en) | 2020-02-11 | 2025-04-15 | Helicoid Industries, Inc. | Composite materials and structures |
| US12449210B2 (en) * | 2020-09-04 | 2025-10-21 | Photon Vault, Llc | Thermal energy system with bonded aggregate blocks comprising graphite |
| US11428476B2 (en) * | 2020-09-04 | 2022-08-30 | Photon Vault, Llc | Thermal energy storage and retrieval system |
| CN113766685A (zh) * | 2020-10-15 | 2021-12-07 | 杨应斌 | 高效节能电热元件 |
| ES2909491B2 (es) * | 2020-11-05 | 2022-09-19 | Univ Internacional De Catalunya Fundacio Privada | Panel de revestimiento colector y/o emisor de energia termica |
| US12276442B2 (en) | 2020-11-09 | 2025-04-15 | Photon Vault, Llc | Multi-temperature heat collection system |
| US11852297B2 (en) | 2021-06-01 | 2023-12-26 | Helicoid Industries Inc. | Containers and methods for protecting pressure vessels |
| US11346499B1 (en) | 2021-06-01 | 2022-05-31 | Helicoid Industries Inc. | Containers and methods for protecting pressure vessels |
| CN216491113U (zh) * | 2021-07-21 | 2022-05-10 | 烯旺新材料科技股份有限公司 | 用于中医悬灸的高温石墨烯电热板 |
| DE202022101316U1 (de) * | 2022-03-10 | 2022-04-05 | Lindner Se | Plattenelement für Flächenheizungen und -kühlungen mit Heiz- oder Kühlregister |
| WO2024006078A1 (en) | 2022-06-27 | 2024-01-04 | Helicoid Industries Inc. | High impact-resistant, reinforced fiber for leading edge protection of aerodynamic structures |
| US20240018780A1 (en) * | 2022-07-12 | 2024-01-18 | Dreamer Limited | Radiant cooling and/or heating assembly |
| WO2024050211A1 (en) * | 2022-08-29 | 2024-03-07 | Photon Vault, Llc | Thermal energy storage and retrieval system |
| DE202023102668U1 (de) * | 2023-05-16 | 2023-07-25 | Jeannot Weber | Flächentemperiersystem |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1512933A2 (de) * | 2003-09-04 | 2005-03-09 | Sgl Carbon Ag | Wärmeleitplatten aus expandiertem Graphit sowie Verfahren zu ihrer Herstellung |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576845A (en) * | 1983-12-15 | 1986-03-18 | Krc Inc. | Thermally conductive base layers for cast polyurethane roll covers |
| JP2989953B2 (ja) * | 1992-02-10 | 1999-12-13 | 富士ゼロックス株式会社 | 定着装置及び定着用エンドレスベルト |
| US6442365B1 (en) * | 1998-04-08 | 2002-08-27 | Xerox Corporation | Thermally conductive fuser belt |
| US8382004B2 (en) | 2001-04-04 | 2013-02-26 | Graftech International Holdings Inc. | Flexible graphite flooring heat spreader |
| US20100326645A1 (en) * | 2004-01-21 | 2010-12-30 | Wei Fan | Thermal pyrolytic graphite laminates with vias |
| EP1588994B1 (de) | 2004-04-16 | 2007-10-24 | Sgl Carbon Ag | Verfahren zur Herstellung von Formkörpern aus expandiertem Graphit |
| DE202005009254U1 (de) * | 2005-06-13 | 2005-10-27 | Gabo Systemtechnik Gmbh | Klimadecke |
| ATE424297T1 (de) | 2006-05-04 | 2009-03-15 | Sgl Carbon Ag | Hochtemperaturbeständiger verbundwerkstoff |
| DE102007037435B4 (de) | 2007-08-08 | 2012-03-22 | Sgl Carbon Se | Schichtstoff |
| CA2786180A1 (en) | 2009-12-31 | 2011-07-07 | Sgl Carbon Se | Graphite-containing plate and method for producing a graphite-containing plate |
| DE102009055442A1 (de) | 2009-12-31 | 2011-07-07 | Sgl Carbon Se, 65203 | Graphithaltige Platte und Verfahren zur Herstellung einer graphithaltigen Platte |
| DE102010002000A1 (de) | 2010-02-16 | 2011-09-08 | Sgl Carbon Se | Wärmeableiter und elektrischer Energiespeicher |
| DE102009055441A1 (de) * | 2009-12-31 | 2011-07-07 | Sgl Carbon Se, 65203 | Einrichtung zur Temperierung eines Raumes |
-
2012
- 2012-03-15 DE DE102012204124A patent/DE102012204124A1/de not_active Withdrawn
- 2012-03-15 DE DE201220003810 patent/DE202012003810U1/de not_active Expired - Lifetime
-
2013
- 2013-03-04 WO PCT/EP2013/054273 patent/WO2013135515A1/de not_active Ceased
- 2013-03-04 EP EP13709828.1A patent/EP2825379A1/de not_active Withdrawn
- 2013-03-04 MY MYPI2014002523A patent/MY166331A/en unknown
- 2013-03-04 SG SG11201405674VA patent/SG11201405674VA/en unknown
- 2013-03-04 CA CA2866607A patent/CA2866607C/en not_active Expired - Fee Related
- 2013-03-04 AU AU2013231509A patent/AU2013231509B2/en not_active Ceased
-
2014
- 2014-09-15 US US14/485,987 patent/US9612064B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1512933A2 (de) * | 2003-09-04 | 2005-03-09 | Sgl Carbon Ag | Wärmeleitplatten aus expandiertem Graphit sowie Verfahren zu ihrer Herstellung |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2013231509B2 (en) | 2015-03-26 |
| WO2013135515A1 (de) | 2013-09-19 |
| DE102012204124A1 (de) | 2013-09-19 |
| DE202012003810U1 (de) | 2013-02-08 |
| CA2866607A1 (en) | 2013-09-19 |
| MY166331A (en) | 2018-06-25 |
| CA2866607C (en) | 2018-01-02 |
| US9612064B2 (en) | 2017-04-04 |
| US20150000888A1 (en) | 2015-01-01 |
| SG11201405674VA (en) | 2014-10-30 |
| CN104245304A (zh) | 2014-12-24 |
| AU2013231509A1 (en) | 2014-10-23 |
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