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WO2025168594A1 - Film antigivre - Google Patents

Film antigivre

Info

Publication number
WO2025168594A1
WO2025168594A1 PCT/EP2025/052881 EP2025052881W WO2025168594A1 WO 2025168594 A1 WO2025168594 A1 WO 2025168594A1 EP 2025052881 W EP2025052881 W EP 2025052881W WO 2025168594 A1 WO2025168594 A1 WO 2025168594A1
Authority
WO
WIPO (PCT)
Prior art keywords
protective film
wind turbine
film according
polyurethane
layer
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.)
Pending
Application number
PCT/EP2025/052881
Other languages
German (de)
English (en)
Inventor
Reinhard Hertrampf
Thomas HAPPES
Boris KÖLLER
Aren Joost De Man
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renolit SE
Original Assignee
Renolit SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Renolit SE filed Critical Renolit SE
Publication of WO2025168594A1 publication Critical patent/WO2025168594A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/06—Polyurethanes from polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203—Polyhydroxy compounds
    • C08G18/3206—Polyhydroxy compounds aliphatic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C08L75/06—Polyurethanes from polyesters
    • 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
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0675—Rotors characterised by their construction elements of the blades
    • 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
    • F03D80/40—Ice detection; De-icing means
    • 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
    • F05B2260/00—Function
    • F05B2260/95—Preventing corrosion
    • 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

Definitions

  • the present invention relates to the use of a thermoplastic protective film comprising a layer of thermoplastic polyurethane containing homogeneously distributed silicone for protecting wind turbines, in particular their rotor blades, from icing and erosion.
  • wind turbines are of particular interest.
  • wind is available worldwide, and on the other hand, wind turbines are a highly developed technology that requires low investment compared to alternatives such as solar and hydropower.
  • Wind turbines are very often part of wind farms with multiple wind turbines.
  • a wind turbine comprises a rotor with a hub and rotor blades, as well as a nacelle in which the generator and often a gearbox are located.
  • the nacelle is usually mounted on a tower so it can rotate.
  • monitoring and control systems, as well as the grid connection technology are located in the nacelle and in the base or outside the tower.
  • a disadvantage of known paint-based coatings is that their renewal is very costly, as the existing coating must be removed. It is also not clear from the publications whether a coating designed to protect against icing also protects against erosion, and vice versa.
  • films with a polyurethane layer containing homogeneously distributed and essentially stationary silicone bonded in the layer, as the uppermost layer, i.e. the layer furthest away from the wind turbine part, offer both protection against icing and erosion, if the polyurethane is a thermoplastic polyurethane that does not contain aromatic Contains isocyanate groups and has a soft phase of polyesterdiol.
  • This film can be used as a self-adhesive protective film or as a combination of a separate adhesive, such as a spray adhesive, and film.
  • a protective film comprising a polyurethane layer as the uppermost layer, wherein the polyurethane is a thermoplastic polyurethane (abbreviated TPU) with a hard phase consisting of an aliphatic isocyanate and a diol having 4 to 20 carbon atoms and a soft phase consisting of a polyester diol, has a glass transition temperature (abbreviated T g ) of a maximum of -35 °C, determined by means of dynamic mechanical thermal analysis at 1 Hz, and wherein the polyurethane layer contains an ultra-high molecular weight silicone that is homogeneously distributed in the layer and does not migrate.
  • TPU thermoplastic polyurethane
  • T g glass transition temperature
  • the protective film according to the invention and used in the invention can be bonded to any existing rotor blade or other parts of an existing wind turbine.
  • the stretchability of the film allows bonding even to curved surfaces and across acute angles.
  • the polyurethane layer containing ultra-high molecular weight silicone provides the bonded part with reliable anti-icing protection.
  • the protective films according to the invention based on polyurethane with homogeneously distributed and anchored silicone exhibit better weathering properties. Compared to fluoropolymers, this results in more effective anti-icing protection.
  • the protective film exhibits high cut and tear resistance, which means effective protection against impacting particles.
  • the protective film has very high rebound resilience and thus enables good erosion protection in the rain.
  • the protective film is electrically insulating, which counteracts lightning strikes.
  • TPU Thermoplastic Polyurethane Elastomers
  • the protective film may have a carrier layer beneath the polyurethane layer or, in the case of self-adhesive protective films, between the adhesive layer and the polyurethane layer, but this is not necessary and therefore not preferred.
  • a carrier layer if present, consists of a thermoplastic or elastomer with a breaking elongation of the material as a film in the range of 100 to 250%, a 2% modulus in the range of 7 to 25 N/15 mm, and a tensile strength in the range of 25 to 40 N/15 mm (all (measured according to DIN EN ISO 527-3/2/200).
  • TPU variants II and III led to a significant improvement in resistance to particle erosion.
  • PVC only partially achieved the required resistance.
  • the incorporation of the additive to achieve ice-repellent properties did not impair the resistance to particle erosion.
  • the TPU with polyetherdiol from cf. 16 performed significantly worse than the TPU with polyesterdiol.
  • Example 5 Drop erosion In a second test according to ASTM G73-10 with swirling arms,
  • TPU I The target of > 20 hours of resistance without breakdown was not achieved by TPU I in this test.
  • the T g of TPU I is approximately -25 °C, i.e., it is above the -35 °C limit.
  • the usable TPUs II, III, and IV in contrast, have T g values in the range of -40 to -45 °C.
  • Target less than 0.5 N/mm 2 [i.e., better than/equal to benchmark].
  • the contact angles of water and a mixture of water and 2-n-butoxyethanol in a ratio of 9:1 were determined using a DAS 100 droplet contour analysis system from Krüss, with ADVANCE 1.14 software, a DS4210 dosing system, and an ST3210 sample table.
  • the advancing (FSW) and receding (RZW) contact angles were determined.
  • the present invention provides protection of the surface of wind turbine components against icing and erosion by means of the protective film comprising a polyurethane layer containing homogeneously distributed and firmly anchored silicone, wherein the protective film is glued to the surface of the wind turbine components.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un film de protection comprenant une couche de polyuréthane, dans lequel le polyuréthane est un polyuréthane thermoplastique ayant une phase dure composée d'un isocyanate aliphatique et d'un diol ayant de 4 à 20 atomes de carbone et une phase molle composée d'un polyéther diol et/ou d'un polyester diol, et a une température de transition vitreuse déterminée par thermoanalyse dynamique-mécanique à 1 Hz d'au plus -35 °C, dans lequel la couche de polyuréthane contient un silicone de poids moléculaire ultra élevé qui est distribué de manière homogène dans la couche et ne migre pas, et des procédés et l'utilisation du film de protection pour la protection d'éoliennes ou de parties d'éolienne contre l'érosion et l'adhérence de la glace, dans lequel le film de protection est collé sur une partie d'éolienne
PCT/EP2025/052881 2024-02-08 2025-02-05 Film antigivre Pending WO2025168594A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102024103585 2024-02-08
DE102024103585.4 2024-02-08

Publications (1)

Publication Number Publication Date
WO2025168594A1 true WO2025168594A1 (fr) 2025-08-14

Family

ID=94637649

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2025/052881 Pending WO2025168594A1 (fr) 2024-02-08 2025-02-05 Film antigivre

Country Status (1)

Country Link
WO (1) WO2025168594A1 (fr)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07330856A (ja) * 1994-06-10 1995-12-19 Sekisui Chem Co Ltd 熱可塑性ポリウレタン及びその製造方法
DE19621485A1 (de) 1996-05-29 1998-03-12 Schulte Franz Josef Rotorblattheizung für Windkraftanlagen
AT13020U1 (de) 2011-03-02 2013-04-15 Wilic Sarl Windturbine mit einer Vereisungsschutzeinrichtung
US8765228B2 (en) * 2011-12-02 2014-07-01 Ppg Industries Ohio, Inc. Method of mitigating ice build-up on a substrate
DE102012025087A1 (de) 2012-12-20 2014-07-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Gefrierpunktserniedrigende Beschichtung aus Kunststofffolien zur Aufbringung auf Rotorblättern von Windenergieanlagen
EP2183331B1 (fr) 2007-08-10 2016-10-26 3M Innovative Properties Company Films résistants à l'érosion utilisables sur des surfaces aérodynamiques portées à haute température
WO2016172016A1 (fr) 2015-04-24 2016-10-27 3M Innovative Properties Company Revêtements en polyuréthane à deux composants résistant à l'érosion
US20170043860A1 (en) 2014-02-14 2017-02-16 Sikorsky Aircraft Corporation Erosion resistant blade and blade coating
JP2017078131A (ja) 2015-10-21 2017-04-27 東ソー株式会社 熱可塑性ポリウレタン樹脂組成物および成型品
US20190062591A1 (en) 2016-04-26 2019-02-28 3M Innovative Properties Company Articles Subject to Ice Formation Comprising a Repellent Surface Comprising a Siloxane Material
KR20190088431A (ko) 2018-01-18 2019-07-26 (주)엘지하우시스 분말 슬러쉬 몰딩용 열가소성 폴리우레탄 조성물 및 이를 이용하여 제조된 자동차 내장재용 표피재
WO2021179069A1 (fr) 2020-03-10 2021-09-16 National Research Council Of Canada Compositions de polyuréthane et élastomères obtenus à partir de celles-ci
WO2023079078A1 (fr) * 2021-11-05 2023-05-11 Hempel A/S Composition de revêtement à base d'eau pour pales d'éolienne

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07330856A (ja) * 1994-06-10 1995-12-19 Sekisui Chem Co Ltd 熱可塑性ポリウレタン及びその製造方法
DE19621485A1 (de) 1996-05-29 1998-03-12 Schulte Franz Josef Rotorblattheizung für Windkraftanlagen
EP2183331B1 (fr) 2007-08-10 2016-10-26 3M Innovative Properties Company Films résistants à l'érosion utilisables sur des surfaces aérodynamiques portées à haute température
AT13020U1 (de) 2011-03-02 2013-04-15 Wilic Sarl Windturbine mit einer Vereisungsschutzeinrichtung
US8765228B2 (en) * 2011-12-02 2014-07-01 Ppg Industries Ohio, Inc. Method of mitigating ice build-up on a substrate
DE102012025087A1 (de) 2012-12-20 2014-07-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Gefrierpunktserniedrigende Beschichtung aus Kunststofffolien zur Aufbringung auf Rotorblättern von Windenergieanlagen
US20170043860A1 (en) 2014-02-14 2017-02-16 Sikorsky Aircraft Corporation Erosion resistant blade and blade coating
WO2016172016A1 (fr) 2015-04-24 2016-10-27 3M Innovative Properties Company Revêtements en polyuréthane à deux composants résistant à l'érosion
JP2017078131A (ja) 2015-10-21 2017-04-27 東ソー株式会社 熱可塑性ポリウレタン樹脂組成物および成型品
US20190062591A1 (en) 2016-04-26 2019-02-28 3M Innovative Properties Company Articles Subject to Ice Formation Comprising a Repellent Surface Comprising a Siloxane Material
KR20190088431A (ko) 2018-01-18 2019-07-26 (주)엘지하우시스 분말 슬러쉬 몰딩용 열가소성 폴리우레탄 조성물 및 이를 이용하여 제조된 자동차 내장재용 표피재
WO2021179069A1 (fr) 2020-03-10 2021-09-16 National Research Council Of Canada Compositions de polyuréthane et élastomères obtenus à partir de celles-ci
WO2023079078A1 (fr) * 2021-11-05 2023-05-11 Hempel A/S Composition de revêtement à base d'eau pour pales d'éolienne

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