DE102006044323A1 - Protection coating for wind turbine blade, is formed of ceramic liquid or paste-like material, on which conductive particles e.g. iron paricles, are applied, and additives e.g. bonding agent - Google Patents

Protection coating for wind turbine blade, is formed of ceramic liquid or paste-like material, on which conductive particles e.g. iron paricles, are applied, and additives e.g. bonding agent Download PDF

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Publication number
DE102006044323A1
DE102006044323A1 DE102006044323A DE102006044323A DE102006044323A1 DE 102006044323 A1 DE102006044323 A1 DE 102006044323A1 DE 102006044323 A DE102006044323 A DE 102006044323A DE 102006044323 A DE102006044323 A DE 102006044323A DE 102006044323 A1 DE102006044323 A1 DE 102006044323A1
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Prior art keywords
conductive particles
ceramic
wind turbine
protective coating
additives
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Ceased
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DE102006044323A
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German (de)
Inventor
Alexander Holtmann
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Holtmann & Stierle Chemie GmbH
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Holtmann & Stierle Chemie GmbH
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Priority to DE102006044323A priority Critical patent/DE102006044323A1/en
Publication of DE102006044323A1 publication Critical patent/DE102006044323A1/en
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/30—Lightning protection
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
    • C09D101/08—Cellulose derivatives
    • C09D101/10—Esters of organic acids
    • C09D101/14—Mixed esters, e.g. cellulose acetate-butyrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24—Electrically-conducting paints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/90—Coating; Surface treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/60—Properties or characteristics given to material by treatment or manufacturing
    • F05B2280/6011—Coating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/12—Coating
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The coating is formed of a ceramic liquid or paste-like material, on which conductive particles e.g. iron particles, are applied, and additives e.g. bonding agent such as cellulose acetate butyrate, and solvent e.g. butyl acetate, where the conductive particles has a grain size from 5 to 100 picometer. The ceramic material conforms to DIN V ENV 22212 standard, and is used in the form of a suspension. The conductive particles are provided in a weight portion of 10 to 40 percentage, related to the ceramic proportion. The material is applied on a surface of wind turbine blades.

Description

Die Erfindung betrifft einen Schutzüberzug für Windrad-Flügel.The The invention relates to a protective cover for wind turbine blades.

Windräder weisen insbesondere in der jüngeren Zeit teilweise eine beträchtliche Höhe von deutlich über 100 m auf. Sie sind daher in erheblichem Maße der Gefahr eines Blitzschlages ausgesetzt. Dadurch entstehen erhebliche Schäden. Der Austausch einzelner Flügel kann nur mithilfe von spezialisierten Firmen erfolgen und macht das Herbeischaffen aufwendigen und teuren Geräts einschließlich geeigneter Kräne erforderlich.Wind turbines point especially in the younger ones Time a considerable part Height of well over 100 m up. They are therefore to a considerable extent the risk of lightning exposed. This causes considerable damage. The exchange of individual wing can only be done with the help of specialized companies Finding expensive and expensive equipment including appropriate ones Cranes required.

Bei den Betreibern von Windrädern besteht daher erhebliches Interesse an einem verbesserten Blitzschutz für die Windrad-Flügel. Dies ist umso aktueller, als gegenwärtig ältere Windräder der ersten Generation vermehrt durch erheblich höhere Windräder ersetzt werden.at the operators of wind turbines There is therefore considerable interest in improved lightning protection for the Wind turbine blades. This is all the more topical as older generation first-generation wind turbines are increasing through considerably higher wind turbines be replaced.

Die Erfindung liegt daher die Aufgabe zugrunde, ein auf die Oberfläche von Windrad-Flügeln aufzubringendes Material zu schaffen, das einen verbesserten Blitzschutz gewährt.The Invention is therefore based on the object, a on the surface of Wind turbine wings to be applied Create material that provides improved lightning protection.

Die erfindungsgemäße Lösung ergibt sich aus den Merkmalen des Patentanspruchs 1.The solution according to the invention arising from the features of patent claim 1.

Die Erfindung schafft einen Schutzüberzug für Windrad-Flügel, bestehend aus einem keramischen flüssigen oder pastenförmigen Material, auf das leitfähige Partikel aufgebracht werden, mit Zusätzen, insbesondere Bindemitteln, Verdünnern, etc..The Invention provides a protective cover for wind turbine blades, consisting from a ceramic liquid or pasty Material on the conductive Particles are applied, with additives, in particular binders, diluents, Etc..

Die leitfähigen Materialien bilden aufgrund ihrer leitenden Eigenschaften einen faradayschen Käfig um die Windflügel herum, so dass die Spannung eines Blitzschlages nicht in den Flügel eindringen kann. Die keramische Masse verhindert, dass der Flügel in Brand gerät.The conductive Materials form one due to their conductive properties Faraday cage around the wind wings around, so that the tension of a lightning strike does not penetrate into the wing can. The ceramic mass prevents the wing from burning device.

Das keramische Material ist vorzugsweise eine Hochleistungskeramik in der Form einer Suspension. Der Begriff der Hochleistungskeramik taucht in der Literatur vielfach auf, ist aber nicht wirklich klar definiert. Nach der DIN V-12212 wird Hochleistungskeramik definiert als "hochentwickelter, hochleistungsfähiger keramischer Werkstoff, der überwiegend nicht metallisch und anorganisch ist und über bestimmte zweckmäßige Eigenschaften verfügt". Der Begriff Hochleistungskeramik wird vor allem verwendet zur Abgrenzung gegenüber traditioneller Keramik auf Tonbasis einschließlich Geschirrporzellan, Sanitärkeramik, Wand- und Bodenfliesen sowie Baukeramik. Die elektrische Leitfähigkeit ist zumeist gering bis sehr gering. Entsprechendes gilt für die Wärmeleitfähigkeit, obgleich beispielsweise Siliziumcarbit oder Aluminiumnitrid eine relativ hohe Wärmeleitfähigkeit aufweisen.The Ceramic material is preferably a high performance ceramic in the form of a suspension. The concept of high performance ceramics appears in the literature many times, but is not really clearly defined. According to DIN V-12212 High performance ceramics are defined as "sophisticated, high performance ceramic Material, the predominant is not metallic and inorganic and has certain functional properties features. "The term high-performance ceramics is mainly used to distinguish it from traditional ceramics Clay base including China, sanitary ware, Wall and floor tiles and building ceramics. The electrical conductivity is usually low to very low. The same applies to the thermal conductivity, For example, although silicon carbide or aluminum nitride is a relatively high thermal conductivity exhibit.

Im Zusammenhang mit der vorliegenden Erfindung wird ein Keramikmaterial verwendet, das angepastet wird, das heißt mit Wasser verdünnt wird. Dieses Material wird auf die Windradflügel aufgestrichen bzw. -lackiert, die zuvor mit einer Haftgrundierung versehen worden sind. Sodann werden die leitfähigen Bestandteile aufgestrichen.in the Related to the present invention is a ceramic material used, which is pasted, that is diluted with water. This Material is on the wind turbine blades brushed or painted, previously with a primer have been provided. Then the conductive components are painted on.

Sodann wird ein Schutzlack in der Form eines einkomponentigen, feuchtigkeitshärtenden Lacksystems aufgebracht. Schließlich wird mit einem zweikomponentigen PUR-Lack lackiert.thereupon is a protective varnish in the form of a one-component, moisture-curing Applied paint system. After all is painted with a two-component PUR varnish.

Das leitfähige Material kann aus Metallpulver, aus Kupfer oder Eisen oder auch aus Kohlenstaubpartikeln der Korngröße von 5-100 μm bestehen.The conductive Material can be made of metal powder, copper or iron or too consist of pulverized coal particles of grain size of 5-100 microns.

Ein hier verwendetes Keramik-Material ist auch unter harten Bedingungen nicht brennbar, und es ist auch gegenüber Witterungseinflüssen resistent.One Ceramic material used here is also in harsh conditions non-flammable, and it is also resistant to the weather.

Die leitfähigen Materialien können wie erwähnt in einer Korngröße von 5 bis 100 μm verwendet werden. Diese Grenzen sind nicht absolut starr, zeigen aber den realistischerweise zu verwendenden Bereich an. Insbesondere ist Eisen ein geeignetes Ausgangsmaterial. Die leitfähigen Partikel können gebildet werden durch Pulver oder Granulate aus Eisen, Kupfer, Kohlenstoff, usw..The conductive Materials can as mentioned in a grain size of 5 up to 100 μm be used. These boundaries are not absolutely rigid, show but the realistically usable range. Especially Iron is a suitable starting material. The conductive particles can be formed are made by powder or granules of iron, copper, carbon, etc..

Der Gewichtsanteil der leitfähigen Materialien, bezogen auf die Keramikmasse, beträgt vorzugsweise 10 bis 40%.Of the Weight fraction of conductive Materials based on the ceramic composition is preferably 10 to 40%.

Als Bindemittel eignet sich Zelluloseacetobutyrat mit einem Mengenanteil von 10 bis 50% des Gesamtgewichts. Als Lösemittel kommt Butylacetat in Betracht.When Binder is cellulose acetobutyrate in a proportion from 10 to 50% of the total weight. The solvent is butyl acetate into consideration.

Das entstehende Material ist gut zu verarbeiten und kann etwa durch Rollen, Streichen oder Spritzen aufgebracht werden. Anschließend wird ein äußerer Überzug aufgetragen, beispielsweise ein aliphatisches Polyisocyanat in einem organischen Lebensmittel.The resulting material is easy to process and can be through Rolling, brushing or spraying are applied. Subsequently, will applied an outer coating, for example, an aliphatic polyisocyanate in an organic Food.

Der erfindungsgemäße Lack kann mit einem Überzugslack als äußere Deckschicht überzogen werden. Für diesen Überzugslack gibt es verschiedene Möglichkeiten, beispielsweise ein aliphatisches Polyisocyanat in organischem Lösungsmittel.Of the paint according to the invention can with a topcoat coated as outer cover layer. For this topcoat there are different ways for example, an aliphatic polyisocyanate in organic solvent.

Bei den hier geschilderten Beispielen wird davon ausgegangen, dass zunächst die Keramikmasse auf die Grundierung des Windradflügels aufgetragen werden, und dass anschließend die leitfähige Substanz folgt. Es ist jedoch auch möglich, metallische Partikel unmittelbar in die Keramikmasse einzumischen und dieses Gemisch in einem Zuge aufzutragen.In the examples described here it is assumed that first the ceramic material are applied to the primer of the wind turbine blade, and then the leitfähi ge substance follows. However, it is also possible to mix metallic particles directly into the ceramic mass and apply this mixture in one go.

Claims (7)

Schutzüberzug für Windrad-Flügel, bestehend aus einem keramischen flüssigen oder pastenförmigen Material, auf das leitfähige Partikel aufgebracht werden, sowie Zusätzen, insbesondere Bindemittel, Verdünner, etc..protective coating for wind turbine blades, consisting of a ceramic liquid or pasty Material on the conductive Particles are applied, and additives, in particular binders, thinners, etc .. Schutzüberzug nach Anspruch 1, dadurch gekennzeichnet, dass das keramische Material eine Hochleistungskeramik nach DIN V ENV 22212 ist, die in der Form einer Suspension verwendet wird.protective coating according to claim 1, characterized in that the ceramic material a high-performance ceramic according to DIN V ENV 22212, which is in the form a suspension is used. Schutzüberzug nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die leitfähigen Partikel eine Korngröße von 5 bis 100 μm aufweisen.protective coating according to claim 1 or 2, characterized in that the conductive particles have a Grain size of 5 up to 100 μm exhibit. Schutzüberzug nach Anspruch 3, dadurch gekennzeichnet, dass die leitfähigen Partikel in einem Gewichtsanteil von 10 bis 40%, bezogen auf die Keramikmasse, vorhanden sind.protective coating according to claim 3, characterized in that the conductive particles in a proportion by weight of 10 to 40%, based on the ceramic composition, available. Schutzüberzug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die leitfähigen Partikel Eisenpartikel sind.protective coating according to one of the preceding claims, characterized that the conductive Particles are iron particles. Schutzüberzug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Bindemittel Zelluloseacetobutyrat mit einem Gewichtsanteil von 10 bis 50% der Gesamtmenge sind.protective coating according to one of the preceding claims, characterized that the binder cellulose acetobutyrate with a weight fraction from 10 to 50% of the total are. Schutzüberzug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Lösungsmittel ein Butylacetat ist.protective coating according to one of the preceding claims, characterized that the solvent a butyl acetate.
DE102006044323A 2006-09-18 2006-09-18 Protection coating for wind turbine blade, is formed of ceramic liquid or paste-like material, on which conductive particles e.g. iron paricles, are applied, and additives e.g. bonding agent Ceased DE102006044323A1 (en)

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DE102006044323A DE102006044323A1 (en) 2006-09-18 2006-09-18 Protection coating for wind turbine blade, is formed of ceramic liquid or paste-like material, on which conductive particles e.g. iron paricles, are applied, and additives e.g. bonding agent

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DE102006044323A DE102006044323A1 (en) 2006-09-18 2006-09-18 Protection coating for wind turbine blade, is formed of ceramic liquid or paste-like material, on which conductive particles e.g. iron paricles, are applied, and additives e.g. bonding agent

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2390498A1 (en) 2010-05-27 2011-11-30 Siemens Aktiengesellschaft Wind turbine blade with coating for lightning protection and method for manufacturing the wind turbine blade
CN102536682A (en) * 2012-01-12 2012-07-04 天津市电力公司 Lightning protection device for protecting small fan in microgrid
EP2532893A1 (en) * 2010-02-04 2012-12-12 The Japan Steel Works, Ltd. Lightning protection structure for blade for wind power generation
CN102900631A (en) * 2012-10-30 2013-01-30 武汉爱劳高科技有限责任公司 Wind turbine blade with lightning current limiting function and manufacturing process thereof
US20170305106A1 (en) * 2014-09-30 2017-10-26 Sekisui Chemical Co., Ltd. Heat-conducting foam sheet for electronic devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2141759A1 (en) * 1971-08-20 1973-03-01 Ver Flugtechnische Werke Electro-plating of non-conducting materials - by means of metal impregnated intermediate plastic layer
DE19826086A1 (en) * 1998-06-12 1999-12-16 Mekra Lang Gmbh & Co Kg Rotor blade for wind power generators and rotor blade manufacture
DE10145750A1 (en) * 2001-09-17 2003-04-24 Infineon Technologies Ag Process for producing a metal layer on a carrier body and carrier body with a metal layer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2141759A1 (en) * 1971-08-20 1973-03-01 Ver Flugtechnische Werke Electro-plating of non-conducting materials - by means of metal impregnated intermediate plastic layer
DE19826086A1 (en) * 1998-06-12 1999-12-16 Mekra Lang Gmbh & Co Kg Rotor blade for wind power generators and rotor blade manufacture
DE10145750A1 (en) * 2001-09-17 2003-04-24 Infineon Technologies Ag Process for producing a metal layer on a carrier body and carrier body with a metal layer

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2532893A1 (en) * 2010-02-04 2012-12-12 The Japan Steel Works, Ltd. Lightning protection structure for blade for wind power generation
EP2532893A4 (en) * 2010-02-04 2015-04-22 Japan Steel Works Ltd Lightning protection structure for blade for wind power generation
US9169826B2 (en) 2010-02-04 2015-10-27 The Japan Steel Works Ltd. Lightning protection structure of blade for wind power generation
EP2390498A1 (en) 2010-05-27 2011-11-30 Siemens Aktiengesellschaft Wind turbine blade with coating for lightning protection and method for manufacturing the wind turbine blade
CN102261310A (en) * 2010-05-27 2011-11-30 西门子公司 Wind turbine blade with a conductively doped coating for lightning protection of the wind turbine blade and method for manufacturing the wind turbine blade
US20110293437A1 (en) * 2010-05-27 2011-12-01 Florian Krug Wind turbine blade with a conductively doped coating for lightning protection of the wind turbine blade and method for manufacturing the wind turbine blade
CN102536682A (en) * 2012-01-12 2012-07-04 天津市电力公司 Lightning protection device for protecting small fan in microgrid
CN102900631A (en) * 2012-10-30 2013-01-30 武汉爱劳高科技有限责任公司 Wind turbine blade with lightning current limiting function and manufacturing process thereof
US20170305106A1 (en) * 2014-09-30 2017-10-26 Sekisui Chemical Co., Ltd. Heat-conducting foam sheet for electronic devices
US10207473B2 (en) * 2014-09-30 2019-02-19 Sekisui Chemical Co., Ltd. Heat-conducting foam sheet for electronic devices

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Effective date: 20120114