WO2018172656A1 - Pale d'eolienne en composite polymere thermoplastique, piece de ladite pale et methode de fabrication - Google Patents
Pale d'eolienne en composite polymere thermoplastique, piece de ladite pale et methode de fabrication Download PDFInfo
- Publication number
- WO2018172656A1 WO2018172656A1 PCT/FR2018/050590 FR2018050590W WO2018172656A1 WO 2018172656 A1 WO2018172656 A1 WO 2018172656A1 FR 2018050590 W FR2018050590 W FR 2018050590W WO 2018172656 A1 WO2018172656 A1 WO 2018172656A1
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- WIPO (PCT)
- Prior art keywords
- meth
- wind turbine
- acrylic
- turbine blade
- thermoplastic polymer
- 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.)
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0025—Producing blades or the like, e.g. blades for turbines, propellers, or wings
- B29D99/0028—Producing blades or the like, e.g. blades for turbines, propellers, or wings hollow blades
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- 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
- F05B2230/40—Heat 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
- F05B2280/40—Organic materials
- F05B2280/4007—Thermoplastics
-
- 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
- F05B2280/6003—Composites; e.g. fibre-reinforced
-
- 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
- F05B2280/70—Treatments or modification of materials
- F05B2280/701—Heat treatments
-
- 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
Definitions
- the invention relates to the field of wind turbines, and more particularly blades of wind turbines manufactured from thermoplastic polymer composite.
- the invention relates to a wind turbine blade, the parts of said wind turbine blade and the method of manufacturing said wind turbine blade.
- Wind turbine blades are today mainly composed of polymer composite in which a fibrous reinforcement is incorporated in a polymer matrix. Indeed, the properties required for wind turbine blades include lightness, relatively high structural strength and tensile strength. This is mainly due to the fact that the wind turbine blades must withstand high mechanical loads during the operation of the wind turbine especially in the presence of strong gusts of wind.
- the fibers of the fibrous reinforcement may typically be composed of glass, carbon, ceramic, but also natural fibers.
- the polymer matrix mainly comprises polymers and maintains the fibers in position, transmits the tensions between the fibers and protects the fibers against external mechanical and chemical influences.
- the polymer matrix is generally thermosetting and the thermosetting polymer composite parts are associated with each other with thermosetting resin (e.g., epoxy glues or polyesters or polyurethanes).
- thermosetting composite materials have several disadvantages, such as high costs in recycling these materials or the accumulation of large quantities of waste if recycling is not possible.
- Wind turbine blades incorporating thermoplastic materials have been proposed for example in the application WO2010025830, however the proposed thermoplastics are essentially proposed to constitute the junction between various pieces of wind turbine blades, and they have a relatively high sensitivity to humidity or high melting temperatures.
- US2017 / 0058864 discloses a modulable wind turbine blade constructed from thermosetting and / or thermoplastic materials. Thermodur-thermoplastic interface is welded, however the blade contains a large part of the thermosetting materials. Therefore, there is still a need for wind turbine blades mainly comprising thermoplastics, and therefore recyclable, while offering mechanical and chemical properties that meet the needs of the wind energy sector.
- thermosetting resins When constructing a polymer composite wind turbine blade, for example by low-pressure injection molding or infusion molding, the use of thermosetting resins generally leads to long cycle times. In addition, these polymer composite parts are then assembled during the industrial process before delivery to the installation site. Given the long cycle time observed when using a thermosetting polymer matrix, both in the manufacture of the parts and the assembly, it is necessary to identify polymers that would be able to reduce the times. cycle and therefore reduce the production time of wind turbine blades.
- wind turbine blades generally have a length of about 40 meters or more, sometimes about 90 or 100 meters.
- the delivery of the blades requires exceptional convoys.
- the invention therefore aims to overcome the disadvantages of the prior art.
- the invention aims to propose a wind turbine blade of thermoplastic polymer composite, which can be manufactured faster than conventional wind turbine blades while preferably being predominantly recyclable, resistant to the mechanical and chemical stresses to which the blades of wind turbines in operation are subjected.
- the invention further aims to provide a method of manufacturing wind turbine blade or piece of wind turbine blade faster than existing methods and allowing, on the installation site, an assembly, a repair or easy and quick adjustments.
- the invention relates to a wind turbine blade comprising an outer casing formed, at least in part, of thermoplastic polymer composite panels, defining a leading edge and a trailing edge of the blade of wind turbine, and at least one polymeric composite stiffening member extending along a longitudinal axis of the wind turbine blade within said wind turbine blade, said stiffening member being disposed between at least one panel defining the edge and at least one panel defining the trailing edge, characterized in that the thermoplastic polymer composite comprises a fibrous reinforcement and a (meth) acrylic thermoplastic matrix, and in that at least one polymer composite panel thermoplastic is connected to the stiffening member by a weld type interface.
- thermosetting polymers conventionally used in these fields.
- the (meth) acrylic thermoplastic polymers used in the context of the invention can be used in the most widely used industrial processes and therefore do not require, unlike thermoplastics such as polyamides, to modify the industrial tools currently used. in the construction of wind turbine blades.
- these wind turbine blades are easily recyclable unlike blades comprising thermosetting polymer composite panels usually used in this field.
- the presence of a weld type interface makes it possible, via a rise in temperature of the interface, to make assemblies, panel positioning adjustments or repairs to the installation site without requiring installation. special.
- the fiber reinforcement is based on fibers having a shape ratio of at least 1000. Such a shape ratio makes it possible to obtain wind turbine blades having improved mechanical properties.
- the wind turbine blade does not comprise more than 50%, preferably not more than 40%, more preferably not more than 30%, even more preferably not more than 20%, more advantageously not more than 15% by weight and even more preferably not more than 10% by weight of thermosetting polymers such as an epoxy resin.
- thermosetting polymers such as an epoxy resin.
- the wind turbine blade according to the invention has a very significant gain in terms of production time and an increased capacity to be recycled.
- the wind turbine blade does not comprise more than 10%, preferably not more than 8%, advantageously not more than 7% by weight, more advantageously not more than 6% by weight and so still more advantageous not more than 5% by weight of thermosetting glues.
- the (meth) acrylic thermoplastic polymer is selected from a thermoplastic polymer resin, commonly called “syrup", which is used to impregnate the reinforcing material, for example a fiber reinforcement and which polymerizes rapidly (eg between 30 seconds and 3 hours) with a good conversion to increase productivity.
- the thermoplastic polymer syrup constitutes the matrix of the composite material.
- a liquid composition or a syrup comprising a (meth) acrylic monomer and a polymer
- (meth) acrylic precursor is described in WO 2013/056845 and WO 2014/013028. These (meth) acrylic polymers are particularly suited to existing industrial processes for manufacturing wind turbine blades and give wind turbine blades satisfactory mechanical and chemical properties.
- the thermoplastic polymer is described in WO 2013/056845 and WO 2014/013028.
- (meth) acrylic is selected from poly (methyl methacrylate) (PMMA) or copolymers of methyl methacrylate
- the fiber reinforcement comprises fibers selected from carbon fibers, or glass fibers, or basalt fibers or polymer-based fibers, or vegetable fibers, alone or as a mixture.
- the (meth) acrylic thermoplastic polymer matrix further comprises one or more additives or fillers. All additives and optional fillers are added to the liquid (meth) acrylic syrup prior to impregnation and / or polymerization.
- the thermoplastic polymer composite may also include other additives and fillers.
- additives there may be mentioned organic additives such as impact modifiers or block copolymers, thermal stabilizers, UV stabilizers, lubricants and mixtures thereof.
- the impact modifier is in the form of fine particles having an elastomeric core and at least one thermoplastic envelope, the size of the particles being generally less than 1 ⁇ m and advantageously from 50 to 300 nm.
- the impact modifier is prepared by emulsion polymerization.
- the proportion of impact modifiers in the thermoplastic polymer matrix is 0 to 50%, preferably 0 to 25%, and preferably 0 to 20% by weight.
- fillers mention may be made of carbon nanotubes or mineral fillers, including mineral nanocharges (T1O2, silica).
- the (meth) acrylic thermoplastic polymer has a glass transition temperature (Tg) between 50 ° C and 160 ° C, preferably between 70 ° C and 140 ° C, and even more preferably 90 ° C and 120 ° vs.
- the (meth) acrylic thermoplastic polymer or a portion of the (meth) acrylic thermoplastic polymer has a creep index (MFI) according to ISO 1133 (230 ° C / 3.8 kg) between less than 20 g / 10 min. .
- MFI creep index
- the creep index is less than 18 g / 10 min, more preferably less than 16 g / 10 min, preferably less than 13 g / 10 min. This facilitates the production of wind turbine blades and also paves the way for easy assembly, adjustment or repair at the installation site.
- the stiffening member has the form of an "I" beam comprising a core and two flanges interconnected by the core.
- the soles are preferably formed by a stack of thermoplastic polymer composite strips, preferably pre-impregnated, or by composite parts molded by infusion or low-pressure injection. This stack can be consolidated by welding.
- the soles are connected to the core by a welding type interface.
- the soles are connected to the core by epoxy glue.
- the leading edge is formed in one piece monolithic welded to the stiffening member.
- a thermoplastic polymer (meth) acrylic and welding type interface makes it possible to envisage new designs of blades of wind turbines and in particular blades whose leading edge is constituted in one piece monolithic welded to the stiffening member to facilitate assembly and improve the wear resistance on the leading edge.
- the thermoplastic polymer composite panels forming the outer casing enclose a low density structure, such as wood (eg balsa), a honeycomb structure or expanded plastic.
- the wind turbine blade comprises at least one resistive filament positioned at the welding type interface.
- the solder type interface has a length greater than 5 meters, preferably greater than 10 meters, more preferably greater than 20 meters.
- the solder type interface extends along a longitudinal axis of the wind turbine blade.
- the invention further relates to a piece of thermoplastic polymer composite wind turbine blade to form a wind turbine blade according to the invention, mainly characterized in that the thermoplastic polymer composite comprises a fibrous reinforcement and a matrix of thermoplastic polymer (meth) acrylic.
- thermoplastic polymer composite of this piece of wind turbine blade is covered at least partially with a layer of thermoplastic polymer.
- thermoplastic polymer composite may for example be covered with this layer of (meth) acrylic thermoplastic polymer on the surface to be welded. This makes it possible in particular to avoid the appearance of zones with a lower concentration of resin at a welding type interface which could lead to embrittlement of the wind turbine blade.
- the invention further relates to a method of manufacturing a wind turbine blade according to the invention, from at least two pieces of wind turbine blade thermoplastic polymer composite, the thermoplastic polymer composite having a fibrous reinforcement and a thermoplastic (meth) acrylic polymer matrix, said process comprising the steps of:
- thermoplastic polymer composite wind turbine blade disposing at least two pieces of thermoplastic polymer composite wind turbine blade adjacent or overlapping at an assembly interface
- the method further comprises a prior step of manufacturing a piece of wind turbine blade, comprising the following substeps:
- thermoplastic polymer composite wind turbine blade parts are manufactured by low pressure injection molding, infusion molding or by molding precoated tapes of thermoplastic (meth) acrylic polymer composite.
- the thermoplastic polymer composite wind turbine blade parts are manufactured at a temperature below 150 ° C, preferably below 120 ° C, even more preferably below 100 ° C.
- the (meth) acrylic liquid composition used for the manufacture of thermoplastic polymer composite wind turbine blade parts is liquid at a temperature much lower than the conventional melting temperatures of conventional thermoplastics.
- the matrix of (meth) acrylic thermoplastic polymers is melted by a technique selected from: ultrasonic welding, induction welding, resistive wire welding, friction stir welding, laser welding, infrared or ultraviolet radiation heating, preferably by resistive wire welding. during the heating step, the temperature at the assembly interface is between 160 and 300 ° C.
- Figure 2 a simplified illustration in perspective view of a cross section of a wind turbine blade, comprising a thermoplastic polymeric composite (meth) acrylic and a welding type interface.
- FIG. 3 is a simplified illustration of an enlargement of a junction zone between a thermoplastic (meth) acrylic polymer composite panel and a stiffening member comprising a welding type interface.
- Figure 4 a process diagram of a preferred embodiment of a manufacturing method according to the invention. The dotted steps are optional.
- FIG. 5 the simplified diagram illustrating an exploded perspective view of different parts constituting a wind turbine blade.
- the "welding type interface” corresponds to the welded joint between parts, or part parts. It relates to the melted zone, that is to say the zone of thermoplastic polymer which has passed to the liquid state during the welding operation.
- the welding according to the invention can be carried out with or without input thermoplastic material including (meth) acrylic.
- the "I-beam” according to the invention corresponds to a structure having a cross section in the form of I or H.
- the horizontal elements of the "I” are called soles, while the vertical element is called the core.
- the I-beam according to the invention is preferably made of thermoplastic polymer composite.
- resistive filament in the sense of the invention a filament comprising a material having a resistivity greater than 1 10 ⁇ 2 ⁇ mm 2 / m at 20 ° C, for example greater than 0.1 ⁇ mm 2 / m at 20 ° C.
- the resistive filament may for example comprise metal or a metal alloy or any other organic conductive elements based on carbon such as a conductive polymeric wire or film based on carbon black, carbon nanotubes, graphenes.
- the resistive filament has a high melting temperature and greater than the softening temperature or flow (eg glass transition) of the thermoplastic polymer (meth) acrylic according to the invention.
- the melting temperature of the resistive filament is preferably greater than 300 ° C, more preferably greater than 500 ° C, for example greater than 750 ° C. In the case of a conductive wire or polymer film, it must have a flow temperature at least equal to that of the (meth) acrylic thermoplastic polymer.
- polymer composite within the meaning of the invention, denotes a multicomponent material comprising at least two immiscible components in which at least one component is a polymer and the other component may for example be a fibrous reinforcement.
- fibrous reinforcement or "fibrous substrate” is intended to mean several fibers, unidirectional rovings or a continuous filament mat, fabrics, felts or nonwovens which may be under the shape of strips, tablecloths, braids, wicks or pieces.
- matrix means a material serving as a binder and capable of transferring forces to the fibrous reinforcement.
- polymer matrix includes polymers but may also include other compounds or materials. Thus, the "polymer matrix
- (meth) acrylic refers to any type of acrylic, methacrylic, block, copolymer, copolymer, oligomer, copolymer or copolymer. However, it would not be departing from the scope of the invention if the (meth) acrylic polymer matrix comprises up to 10% by weight, preferably less than 5% by weight of other non-acrylic monomers, chosen, for example, from group: butadiene, isoprene, styrene, substituted styrene such as methylstyrene or tert-butylstyrene, cyclosiloxanes, vinylnaphthalenes and vinylpyridines.
- non-acrylic monomers chosen, for example, from group: butadiene, isoprene, styrene, substituted styrene such as methylstyrene or tert-butylstyrene, cyclosiloxanes, vinylnaphthalenes
- polymer is meant either a copolymer or a homopolymer.
- copolymer means a polymer comprising several different monomer units and “homopolymer” means a polymer comprising identical monomeric units.
- block copolymer means a polymer comprising one or more uninterrupted sequences of each of the different polymeric species, the polymer blocks being chemically different from one another and being linked together by a covalent bond. These polymer blocks are still referred to as polymer blocks.
- radical initiator within the meaning of the invention, denotes a compound that can start / initiate the polymerization of a monomer or monomers.
- polymerization within the meaning of the invention, refers to the process for converting a monomer or a mixture of monomers into a polymer.
- thermoplastic polymer is intended to mean a polymer that is generally solid at ambient temperature, that can be crystalline, semi-crystalline or amorphous, and that softens during a temperature increase, in particular after passing its glass transition temperature (Tg) and flows at a higher temperature and can observe a frank fusion at the passage of its so-called melting temperature (Tf) (when it is semi-crystalline), and which becomes solid again during a temperature decrease below its melting temperature and below its glass transition temperature.
- Tg glass transition temperature
- Tf melting temperature
- thermoplastic polymers slightly crosslinked by the presence of multifunctional monomers or oligomers in the formulation of the "syrup" (meth) acrylate, in weight percentage, preferably less than 10%, preferably less than 5%, and so preferred less than 2% which can be thermoformed when heated above the softening temperature.
- thermosetting polymer means a plastic material which is irreversibly converted by polymerization into an insoluble polymer network.
- (meth) acrylic monomer any type of acrylic and methacrylic monomer.
- (meth) acrylic polymer means a polymer essentially comprising (meth) acrylic monomers which represent at least 50% by weight or more of the polymer
- PMMA refers to homopolymers and copolymers of methyl methacrylate (MMA), the ratio by weight MMA in PMMA is preferably at least 70% by weight for the MMA copolymer.
- the present invention relates to a wind turbine blade whose structure comprises a thermoplastic polymer composite comprising a fiber reinforcement and a matrix of thermoplastic polymer (meth) acrylic.
- the (meth) acrylic thermoplastic polymers used in the constitution of the matrix impregnating the fibrous reinforcement may be chosen from polymers and copolymers of the family of acrylics such as polyacrylates. They are more particularly selected from polymethyl methacrylate (PMMA) or its derivatives or copolymers of methyl methacrylate (MMA) or mixtures thereof.
- PMMA polymethyl methacrylate
- MMA methyl methacrylate
- the (meth) acrylic thermoplastic polymer forming the thermoplastic (meth) acrylic polymer matrix, has a glass transition temperature (Tg) of between 50 ° C. and 160 ° C., preferably between 70 ° C. and 70 ° C. ° C and 140 ° C, and even more preferably 90 ° C and 120 ° C.
- Tg glass transition temperature
- polyamines generally have very high melting temperatures, ie from 200 ° C and higher, which does not facilitate on-site assembly as is the case according to the method of the invention. Glass transition or melting temperatures can be measured by methods well known to those skilled in the art.
- these temperatures are measured by Differential Scanning Calorimetry according to the conditions specified in ISO 11357-2 / 2013 for Tg and ISO 11357-3 / 2011 for Tf.
- the (meth) acrylic thermoplastic polymer or a part of the (meth) acrylic thermoplastic polymer has a creep (MFI) according to ISO 1133 (230 ° C / 3.8 kg) less than 20 g / 10 min.
- the creep index is less than 18 g / 10 min, more preferably less than 16 g / 10 min, preferably less than 13 g / 10 min.
- the wind turbine blade according to the invention does not comprise more than 50% by weight, more preferably not more than 40% by weight, more preferably not more than 30% by weight. by weight, advantageously not more than 20% by weight, more advantageously not more than 15% by weight and even more advantageously not more than 10% by weight of thermosetting polymers such as epoxy resins or polyesters or polyurethanes . So far, thermosetting polymers have generally been used in the manufacture of polymer composite materials used for the formation of wind turbine blades or blades of wind turbine blades. Likewise, preferably, the wind turbine blade according to the invention does not comprise more than 10% by weight, more preferably not more than 9% by weight and even more preferably not more than 8% by weight.
- thermosetting glues preferably thermosetting glues.
- the gluing of the different pieces of wind turbine blades is generally carried out with thermosetting structural glue of the epoxy resin type.
- thermoplastic polymer composite panels comprising a fibrous reinforcement and a matrix of thermoplastic polymer (meth) acrylic significantly reduces the amount of thermosetting polymer used in the blades of wind turbine and opens up possibilities not possible with panels of thermosetting polymer composite such as a recycling of a majority of the blade, as well as mountings or repairs on site facilitated.
- the matrix of (meth) acrylic thermoplastic polymers can be obtained from the polymerizing a (meth) acrylic liquid composition comprising a (meth) acrylic monomer or a mixture of (meth) acrylic monomers, a precursor (meth) acrylic polymer and at least one radical initiator.
- the (meth) acrylic thermoplastic polymer matrix is formed of (meth) acrylic thermoplastic polymer but it may further comprise one or more additives and / or one or more fillers.
- the carbonaceous fillers may be in particular activated carbon, natural anthracite, synthetic anthracite, carbon black, natural graphite, synthetic graphite, carbon nanofillers or mixtures thereof. They are preferably chosen from carbon nanofillers, in particular graphenes and / or carbon nanotubes and / or carbon nanofibrils or mixtures thereof. These charges make it possible to conduct electricity and heat, and consequently make it possible to improve the lubrication of the polymer matrix when it is heated. They can then reduce cycle times or facilitate assembly, adjustment or repair at the installation site.
- the inorganic fillers include metal hydroxides, which are more particularly in the form of alumina trihydate (Al (OH) 3) or magnesium hydroxide (Mg (OH)) or magnesium oxide (MgO) calcium hydroxides and mineral fillers such as calcium carbonate, titanium dioxide or silica or mineral nanofillers such as titanium nanodioxide or nanosilices.
- metal hydroxides which are more particularly in the form of alumina trihydate (Al (OH) 3) or magnesium hydroxide (Mg (OH)) or magnesium oxide (MgO) calcium hydroxides and mineral fillers such as calcium carbonate, titanium dioxide or silica or mineral nanofillers such as titanium nanodioxide or nanosilices.
- additives it is possible to mention organic additives such as impact resistance modifiers or block copolymers, thermal stabilizers, UV stabilizers, lubricants, viscosity modifiers, pH modifiers. (soda), particle size modifiers (sodium sulphate), biocides, and mixtures thereof.
- organic additives such as impact resistance modifiers or block copolymers, thermal stabilizers, UV stabilizers, lubricants, viscosity modifiers, pH modifiers. (soda), particle size modifiers (sodium sulphate), biocides, and mixtures thereof.
- the weight percentage of all additives and fillers relative to the total weight of (meth) acrylic thermoplastic polymer matrix is preferably less than 30%, preferably less than 10%.
- the fibrous reinforcement generally relates to a plurality of fibers, unidirectional rovings or a continuous filament mat, fabrics, felts or nonwovens which may be in the form of strips, plies, braids, locks or pieces.
- a fibrous reinforcement comprises an assembly of one or more fibers, generally several fibers, said assembly being able to have different shapes and dimensions, one-dimensional, two-dimensional or three-dimensional.
- the one-dimensional shape corresponds to long linear fibers.
- the fibers may be discontinuous or continuous.
- the fibers may be arranged randomly or in parallel with one another in the form of a continuous filament.
- the two-dimensional form is fibrous mats or non-woven reinforcements or woven rovings or bundles of fibers, which may also be braided. Even though the two-dimensional shape has a certain thickness and, therefore, in principle a third dimension, it is considered to be two-dimensional according to the present invention.
- the three-dimensional shape corresponds, for example, to non-woven fibrous mats or reinforcements or stacked or folded bundles of fibers or mixtures thereof, an assembly of the two-dimensional form in the third dimension.
- the fibers may be discontinuous or continuous. When the fibers are continuous, their assembly forms tissues.
- the fibrous reinforcement is based on continuous fibers.
- a fiber is defined by its form factor, which is the ratio of the length and diameter of the fiber.
- the fibers used in the The present invention is long fibers obtained from continuous fibers or continuous fibers.
- the fibers have a shape ratio of at least 1000, preferably at least 1500, more preferably at least 2000, advantageously at least 3000 and more preferably at least 5000, still more preferably at least 6000, still more preferably at least 7500 and most preferably at least 10,000.
- the continuous fibers have a shape ratio of at least 1000.
- the dimensions of a fiber can be measured by methods well known to those skilled in the art. Preferably, these dimensions are measured by microscopy according to the ISO 137 standard.
- the origins of the fibers constituting the fibrous reinforcement may be natural or synthetic.
- a natural material mention may be made of vegetable fibers, wood fibers, animal fibers or mineral fibers.
- Vegetable fibers are, for example, sisal fibers, jute, hemp, linen, cotton, coconut, and banana fibers.
- Animal fibers are, for example, wool or hair.
- the mineral fibers may also be chosen from glass fibers, in particular of the E, R or S2 type, basalt fibers, carbon fibers, boron fibers or silica fibers.
- polymeric fibers selected from thermosetting polymer fibers, thermoplastic polymers or mixtures thereof.
- the polymeric fibers may consist of polyamide (aliphatic or aromatic), polyester, polyvinyl alcohol, polyolefins, polyurethanes, polyvinyl chloride, polyethylene, unsaturated polyesters, epoxy resins and vinyl esters.
- the fiber reinforcement of the present invention comprises vegetable fibers, wood fibers, animal fibers, mineral fibers, synthetic polymer fibers, glass fibers, basalt fibers and carbon fibers. , alone or in mixture. More preferably, the fiber reinforcement of the present invention comprises carbon fibers or fibers of glass. More preferably, the fibrous reinforcement of the present invention consists essentially of carbon fibers or glass fibers.
- the fibers of the fiber reinforcement have, for example, a diameter of between 0.005 ⁇ and 100 ⁇ , preferably between 1 ⁇ and 50 ⁇ , more preferably between 5 ⁇ and 30 ⁇ and advantageously between 10 ⁇ and 25 ⁇ .
- the fibers of the fibrous reinforcement of the present invention are selected from continuous fibers for the unidimensional shape, or from long or continuous fibers for the two-dimensional or three-dimensional form of the fibrous reinforcement.
- FIG. 1 illustrates a conventional wind turbine 100 with a horizontal axis comprising, with a mast 101, a nacelle 102 and a rotor with a substantially horizontal rotor shaft.
- the rotor comprises a hub 103 and three wind turbine blades 1 extending radially from the hub 103, each having a root 104 of the wind turbine blade closest to the hub 103 and a tip 105 of the wind turbine blade. the furthest away from the hub 103.
- the rotor is driven by the wind energy, it is connected directly or indirectly (via a gear speed multiplier) to the mechanical system that will use the energy collected (pump, electric generator, etc.). ).
- the wind turbine blade 1 generally has a cross sectional shape that changes between the tip 105 and the root 104 of the wind turbine blade, corresponding to an attachment zone.
- the wind turbine blade 1 comprises an outer casing defining a lower surface 11 and an upper surface 12 as well as a leading edge 4 and a trailing edge 5.
- This outer casing defines at least partially an outer surface of the airfoil.
- wind turbine 1 is formed, at least in part, of panels 3 of thermoplastic polymer composite.
- the outer casing is for example more particularly formed by the panels 3 of thermoplastic polymer composite associated with a stiffening member 6.
- the stiffening member 6 can be entirely surrounded by the panels 3 of thermoplastic polymer composite and therefore do not participate in the formation of the outer envelope.
- the panels 3 of thermoplastic polymer composite may take various forms such as strips, sheets, plates or more largely rigid polymer composite parts.
- the panels 3 of thermoplastic polymer composite may further be subject to further processing to strengthen the outer shell and improve their mechanical and chemical properties.
- the treatment may for example be specifically located on certain areas of the outer surface of the wind turbine blade 1 as along the leading edge 4.
- the treatment may comprise the deposition of a protective layer of material plastic or metal covering the leading edge 4.
- the wind turbine blade 1 also comprises at least one longitudinal stiffening member 6 made of thermoplastic polymer composite inside said wind turbine blade 1, extending along a longitudinal axis A of the wind turbine blade.
- the stiffening member 6 is disposed between at least one panel defining the leading edge 4 and at least one panel defining the trailing edge 5.
- the wind turbine blade according to the invention may have a leading edge formed in one piece monolithic welded to the stiffening member 6.
- the present invention based on at least in part on the use of thermoplastic polymer composite having a fiber reinforcement and a (meth) acrylic thermoplastic polymer matrix makes it possible to realize new wind turbine blade designs both in shape as shown in Figure 2 with a leading edge formed in one piece monolithic welded to the stiffening member 6 than in the method of assembly as will be detailed later.
- the panel elements 3 and the stiffening member are connected so as to constitute together at least a portion of the outer casing of the wind turbine blade.
- the stiffening member 6 imparts increased stability and local stiffness compared to the thermoplastic polymer composite panel alone.
- the stiffening member 6 extends along a longitudinal axis A of the wind turbine blade inside said wind turbine blade 1 of to stabilize the structure.
- the stiffening member 6 comprises a thermoplastic polymer composite, the thermoplastic polymer composite comprising a fibrous reinforcement and a (meth) acrylic thermoplastic polymer matrix.
- the stiffening member 6 has the form of an "I" beam having a core 61 and two flanges 62 interconnected by the core 61.
- the core can be formed an assembly comprising a thermoplastic polymer composite enclosing a low density structure. This arrangement forms a sandwich type structure where the low density structure is surrounded by one or more thermoplastic polymer composite panels.
- the stiffening member 6 may take the form of a tube having a section having a quadrilateral shape (preferably square or rectangle) and can thus correspond to a stiffening member having two cores and two soles
- the flanges 62 may be formed by a ribbon stack 63 of thermoplastic polymer composite, the thermoplastic polymer composite having a fiber reinforcement and a matrix of thermoplastic polymer (meth) acrylic.
- the flanges 62 are connected to the core 61 by a weld type interface 7.
- the flanges 62 may be connected to the core 61 by glue epoxies or polyesters or polyurethanes.
- FIG. 3 represents an enlarged view of the weld type interface 7 connecting a thermoplastic polymer composite panel to the stiffening member 6.
- the weld type interface 7 has a thickness greater than or equal to 0.5 mm, preferably greater than or equal to 1 mm, more preferably greater than or equal to 2 mm.
- the thickness of the solder type interface 7 can be measured by conventional methods, for example from a vertical section of said solder type interface 7.
- the weld type interface 7 makes it possible to connect a thermoplastic polymer composite panel to the stiffening member 6, then it extends along a longitudinal axis A of the blade wind turbine.
- Figure 3 shows only a sectional view of the weld type interface 7 but the latter preferably extends over the entire length of the stiffening member.
- the weld type interface may have a length greater than 5 meters, preferably greater than 10 meters and even more preferably greater than 20 meters.
- a low density structure 8 On the representation according to Figure 3, it is also possible to discern the presence, between two panels 3 of thermoplastic polymer composite, a low density structure 8.
- the panels 3 of composite thermoplastic polymer forming at least partially the outer casing enclose a low density structure 8.
- This arrangement forms a sandwich type structure where the low density structure 8 is surrounded by one or more panels 3 of thermoplastic polymer composite.
- the low density structure generally has a density of less than 200 kg / m 3 , preferably less than 150 kg / m 3 , and even more preferably less than 75 kg / m 3 .
- the low density structure is for example selected from wood (such as balsa), a honeycomb structure or expanded or foamed plastic (such as expanded polystyrene or PET foam (polyethylene terephthalate), or PVC (polyvinyl chloride).
- the invention relates to a piece of wind turbine blade 2 made of thermoplastic polymer composite to form a wind turbine blade 1 according to the invention wherein the thermoplastic polymer composite comprises a fiber reinforcement and a matrix of thermoplastic polymer (meth) acrylic.
- the thermoplastic polymer composite of the piece 2 of the wind turbine blade is at least partially covered with a thermoplastic (meth) acrylic polymer layer of at least 1 mm, preferably at least 2 mm. mm, more preferably at least 3 mm thick for example on a surface to be welded.
- the thermoplastic polymer composite is more particularly covered with this (meth) acrylic thermoplastic polymer layer at an interface zone. assembly to form the future weld type interface. This makes it possible in particular to avoid the appearance of zones with a lower concentration of thermoplastic polymer.
- the piece 2 of the wind turbine blade may have at least one face covered with the layer of (meth) acrylic thermoplastic polymer.
- the invention relates to a method of manufacturing a wind turbine blade 1 according to the invention, from at least two pieces of wind turbine blade.
- thermoplastic polymer composite the thermoplastic polymer composite comprising a fibrous reinforcement and a (meth) acrylic thermoplastic polymer matrix, said method comprising the steps of:
- thermoplastic polymer matrix (meth) acrylic at the level of the assembly interface 71
- the (meth) acrylic thermoplastic polymer matrix can be melted by a technique selected from: ultrasonic welding, induction welding, resistive wire welding, friction stir welding, laser welding, infrared or radiation heating. ultraviolet. Preferably it is melted by resistive wire welding.
- the welding according to the invention can be carried out with or without the addition of thermoplastic material
- the temperature at the assembly interface 71 is between 160 and 300 ° C. This temperature can be measured conventionally by infrared thermometer.
- the method 200 for manufacturing a wind turbine blade according to the invention may comprise a prior step 210 for manufacturing thermoplastic polymer composite wind turbine blade parts, the thermoplastic polymer composite comprising a fibrous reinforcement. and a thermoplastic polymer matrix
- the step 210 of manufacturing a piece of wind turbine blade comprising the following sub-steps:
- the pieces of thermoplastic polymer composite wind turbine blade 2 may be manufactured at a temperature below 150 ° C., preferably below 140 ° C., even more preferably lower. at 125 ° C, advantageously below 120 ° C, more preferably below 110 ° C and even more preferably below 100 ° C.
- the step of impregnating the fibrous reinforcement with the liquid (meth) acrylic composition is carried out at a temperature of less than 150 ° C., preferably less than 120 ° C., even more preferably less than 100 ° C. less than 80 ° C.
- the (meth) acrylic liquid composition used for the manufacture of thermoplastic polymer composite wind turbine blade parts 2 is liquid at a temperature much lower than the conventional melting temperatures of conventional thermoplastics.
- This makes it possible to produce the pieces of wind turbine blades that are of very large size without having to implement processes where said parts are heated to high temperatures.
- the methods that can be used to make these parts do not require a heating step at a high temperature as could have been the case with a conventional thermoplastic.
- the step 210 of manufacture of turbine blade part 2 may also comprise a sub-step 213 for depositing a layer of (meth) acrylic thermoplastic polymer. This deposit may preferably be at an assembly interface area intended to form the future weld type interface. Alternatively, the deposit is made on the entire part 2 of the wind turbine blade.
- VARI Vacuum-assisted resin infusion
- RTM resin transfer molding
- HP-RTM, C-RTM, I-RTM reaction-injection molding
- R-RIM reinforced injection-reaction molding
- press molding compression molding, liquid compression molding (LCM) or sheet molding (SMC) or bulk molding (BMC).
- the polymer composite wind turbine blade parts are manufactured by low pressure injection molding, infusion molding or by molding thermoplastic (meth) acrylic polymer composite tapes, for example prepreg tapes.
- a first preferred manufacturing method for manufacturing wind turbine blade parts is a method in which the (meth) acrylic liquid composition is transferred to the fibrous reinforcement by impregnating the fibrous reinforcement in a mold. Processes requiring a mold are listed above and include the word molding.
- a second preferred manufacturing method for manufacturing wind turbine blade parts are processes in which the liquid composition is used in the pultrusion process.
- the fibers are guided via a batch of resin comprising the composition according to the invention.
- the fibers in the form of fibrous reinforcement are, for example, in the form of a unidirectional roving or a continuous filament mat. After impregnation in the resin batch, the wet fibers are drawn through a heated die, where the polymerization occurs.
- a third preferred method of manufacture is vacuum-assisted resin infusion (VARI).
- the method of manufacturing wind turbine blade parts may further comprise the post-forming step.
- Post-forming involves bending and changing the shape of the composite part.
- the method of manufacturing wind turbine blade parts may further comprise a rolling step.
- thermoplastic parts obtained by the processes according to the invention may be post-formed after polymerization of the liquid composition of the invention. Forming includes bending and changing the shape of the composite part.
- the (meth) acrylic liquid composition may comprise a (meth) acrylic monomer, a precursor (meth) acrylic polymer and a radical initiator as described in WO2013 / 056845 and WO2014 / 013028.
- (Meth) acrylic, or impregnating syrup must be regulated and adapted so as not to be too fluid or too viscous, to properly impregnate each fiber fiber reinforcement.
- wetting is partial, either because the syrup is too fluid or too viscous, "bare" areas, that is to say non-impregnated areas, and areas in which drops of polymer are formed on the fibers , which are the cause of the formation of bubbles, respectively, appear.
- These "bare” zones and these bubbles lead to the appearance of defects in the final composite material, which are the cause, inter alia, of a loss of mechanical strength of the final composite material.
- said (meth) acrylic liquid composition preferably has a dynamic viscosity of between 10 mPa * s and 10,000 mPa * s at 25 ° C.
- the dynamic viscosity of the liquid composition or (meth) acrylic syrup is in the range of 10 mPa * s to 10,000 mPa * s, preferably 20 mPa * s to 7000 mPa * s and preferably 20 mPa * s to 5000 mPa.s.
- the viscosity of the liquid (meth) acrylic composition, or liquid (meth) acrylic syrup can be easily measured with a rheometer or viscometer. The dynamic viscosity is measured at 25 ° C. If the syrup
- (Meth) acrylic liquid exhibits a non-tonian behavior, that is to say without shear thinning, the dynamic viscosity is independent of the shear in a rheometer or the speed of the mobile in a viscometer. If the liquid composition exhibits non-Newtonian behavior, i.e. with shear thinning, the dynamic viscosity is measured at a shear rate of 1 to 25 ° C.
- the (meth) acrylic monomer is selected from acrylic acid, methacrylic acid, alkylacrylic monomers, alkylmethacrylic monomers, hydroxyalkylacrylic monomers and hydroxyalkylmethacrylic monomers, and mixtures thereof.
- the (meth) acrylic monomer is chosen from acrylic acid, methacrylic acid, hydroxyalkylacrylic monomers, hydroxyalkylmethacrylic monomers, alkylacrylic monomers, alkylmethacrylic monomers and mixtures thereof, the group alkyl containing from 1 to 22 linear, branched or cyclic carbons; the alkyl group preferably containing from 1 to 12 linear, branched or cyclic carbons.
- the (meth) acrylic monomer is chosen from methyl methacrylate, ethyl methacrylate, methyl acrylate, ethyl acrylate, methacrylic acid, acrylic acid, n-butyl acrylate and isobutyl acrylate.
- At least 50% by weight and preferably at least 60% by weight of the (meth) acrylic monomer is methyl methacrylate.
- At least 50% by weight preferably at least 60% by weight, more preferably at least 70% by weight, advantageously at least 80% by weight and even more advantageously 90% by weight.
- By weight of the monomer is a mixture of methyl methacrylate with optionally at least one other monomer.
- the precursor (meth) acrylic polymer there may be mentioned polyalkyl methacrylates or polyalkyl acrylates. According to a preferred embodiment, the polymer
- (meth) acrylic precursor is poly (methyl methacrylate)
- the homopolymer or copolymer of methyl methacrylate (MMA) comprises at least 70%, preferably at least 80%, advantageously at least 90% and more advantageously at least 95% by weight of methyl methacrylate.
- the PMMA is a mixture of at least one homopolymer and at least one MMA copolymer, or a mixture of at least two homopolymers or two MMA copolymers with a different average molecular weight, or a mixture of at least two MMA copolymers having a different monomer composition.
- the methyl methacrylate (MMA) copolymer comprises from 70% to 99.7% by weight of methyl methacrylate and from 0.3% to 30% by weight of at least one monomer containing at least one ethylenic unsaturation. which can copolymerize with methyl methacrylate.
- the comonomer is an alkyl acrylate wherein the alkyl group contains from 1 to 4 carbon atoms.
- the methyl methacrylate (MMA) copolymer comprises from 80% to 99.7%, advantageously from 90% to 99.7% and more advantageously from 90% to 99.5%. by weight of methyl methacrylate and from 0.3% to 20%, advantageously from 0.3% to 10% and more preferably from 0.5% to 10% by weight of at least one monomer containing at least one ethylenic unsaturation which can copolymerize with methyl methacrylate.
- the comonomer is selected from methyl acrylate and ethyl acrylate, and mixtures thereof.
- the weight average molecular weight of the precursor (meth) acrylic polymer must be high, that is to say greater than 50,000 g / mol and preferably greater than 100,000 g / mol.
- the weight average molecular weight can be measured by size exclusion chromatography.
- the (meth) acrylic precursor polymer is totally soluble in the (meth) acrylic monomer or in the monomer mixture
- the liquid composition or solution obtained is generally called “syrup” or “prepolymer”.
- the dynamic viscosity value of the liquid (meth) acrylic syrup is between 10 mPa.s and 10,000 mPa.s.
- the viscosity of the syrup can be easily measured with a rheometer or viscometer.
- the dynamic viscosity is measured at 25 ° C.
- Liquid (meth) acrylic contains no additional solvents added voluntarily.
- the (meth) acrylic monomer or the mixture of the (meth) acrylic monomers in the (meth) acrylic liquid composition or the liquid (meth) acrylic syrup are present at a level of at least 40% by weight, preferably at least 40% by weight. at least 45% by weight, more preferably at least 50% by weight, preferably at least 60% by weight and more preferably at least 65% by weight the (meth) acrylic liquid composition.
- the precursor (meth) acrylic polymer in the (meth) acrylic liquid composition or the liquid (meth) acrylic syrup is present in at least 10% by weight, preferably at least 15%, advantageously at least 10% by weight. at least 18% and more preferably at least 20% by weight in the (meth) acrylic liquid composition.
- the precursor (meth) acrylic polymer in the liquid (meth) acrylic composition or the liquid (meth) acrylic syrup is present up to at most 60% by weight, preferably at most 50%, advantageously from at most 40% and more preferably at most 35% by weight in the liquid composition
- the (meth) acrylic liquid composition or the syrup, the syrup compounds are incorporated in the following percentages by mass:
- the (meth) acrylic monomer in the liquid composition or the (meth) acrylic syrup are present in proportions of between 40% and 90% by weight and preferably between 45% and 85% by weight of the monomer composition (meth) acrylic and the (meth) acrylic polymer,
- the (meth) acrylic polymer in the liquid composition or the (meth) acrylic syrup are present in proportions of between 10% and 60% by weight and advantageously between 15% and 55% by weight of the composition consisting of ) (meth) acrylic monomer and the (meth) acrylic polymer, preferably the (meth) acrylic polymer in the liquid composition is present in proportions between 18% and 30%, more preferably between 20 and 25% by weight of the composition consisting of the (meth) acrylic monomer and the (meth) acrylic polymer.
- radical initiators preferably water-soluble radicals or liposoluble or partially liposoluble radical polymerization initiators.
- the water-soluble radical polymerization initiators are in particular sodium, potassium or ammonium persulfates, used alone or in the presence of reducing agents such as sodium metabisulfites or hydrosulfites, sodium thiosulfate, sodium formaldehyde sulfoxylate and the like.
- the liposoluble or partially liposoluble radical polymerization initiators are in particular peroxides or hydroperoxides and derivatives of azobisisobutyronitrile. Peroxides or hydroperoxides are used in combination with the reducing agents described above so as to lower their activation temperature.
- the mass percentage of initiator relative to the total weight of the monomer mixture is preferably between 0.05% by weight and 3% by weight, preferably between 0.1% by weight and 2% by weight.
- the wind turbine blades 1 may comprise a plurality of thermoplastic polymer composite parts 2 in which the thermoplastic polymer composite comprises a fibrous reinforcement and a (meth) acrylic thermoplastic polymer matrix. and wherein said wind turbine blade pieces 2 have assembly interface areas 71 for quickly and easily welding them to a stiffening member 6.
- the invention proposes wind turbine blades that can be manufactured faster than conventional wind turbine blades while being recyclable and satisfactory from a mechanical and chemical stability point of view.
- the invention also allows quick and easy assembly, repair or adjustment at the installation site. [00110] All these advantages therefore contribute to reducing the production and installation costs of such wind turbines.
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
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- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
Description
Claims
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020197029554A KR102478910B1 (ko) | 2017-03-13 | 2018-03-13 | 열가소성 중합체 복합재로 제조된 풍력 터빈 블레이드, 상기 블레이드의 부품 및 제조 방법 |
| JP2019549430A JP7158401B2 (ja) | 2017-03-13 | 2018-03-13 | 熱可塑性ポリマー複合材料で作られる風力タービンブレード、上記ブレードの部品、および生産方法 |
| CN201880031421.7A CN110612392B (zh) | 2017-03-13 | 2018-03-13 | 热塑性聚合物复合材料制成的风力涡轮机叶片、所述叶片的部件和制造方法 |
| MX2019010637A MX2019010637A (es) | 2017-03-13 | 2018-03-13 | Paleta de turbina eolica elaborada de un compuesto de polimero termoplastico, parte de la paleta y metodo de produccion. |
| EP18714569.3A EP3596338A1 (fr) | 2017-03-13 | 2018-03-13 | Pale d'eolienne en composite polymere thermoplastique, piece de ladite pale et methode de fabrication |
| US16/492,958 US11624347B2 (en) | 2017-03-13 | 2018-03-13 | Wind turbine blade made of thermoplastic polymer composite, part of said blade and production method |
| BR112019018836-3A BR112019018836A2 (pt) | 2017-03-13 | 2018-03-13 | lâmina de turbina eólica feita de compósito de polímero termoplástico, parte da dita lâmina e método de produção |
| CA3055485A CA3055485A1 (fr) | 2017-03-13 | 2018-03-13 | Pale d'eolienne en composite polymere thermoplastique, piece de ladite pale et methode de fabrication |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1752045A FR3063774B1 (fr) | 2017-03-13 | 2017-03-13 | Pale d’eolienne en composite polymere thermoplastique, piece de ladite pale et methode de fabrication |
| FR1752045 | 2017-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018172656A1 true WO2018172656A1 (fr) | 2018-09-27 |
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| PCT/FR2018/050590 Ceased WO2018172656A1 (fr) | 2017-03-13 | 2018-03-13 | Pale d'eolienne en composite polymere thermoplastique, piece de ladite pale et methode de fabrication |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US11624347B2 (fr) |
| EP (1) | EP3596338A1 (fr) |
| JP (1) | JP7158401B2 (fr) |
| KR (1) | KR102478910B1 (fr) |
| CN (1) | CN110612392B (fr) |
| BR (1) | BR112019018836A2 (fr) |
| CA (1) | CA3055485A1 (fr) |
| FR (1) | FR3063774B1 (fr) |
| MX (1) | MX2019010637A (fr) |
| WO (1) | WO2018172656A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024074662A1 (fr) | 2022-10-05 | 2024-04-11 | Arkema France | Semelle de longeron et son procédé de production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018165669A1 (fr) * | 2017-03-10 | 2018-09-13 | Gfsi Group Llc | Recyclage de pale d'éolienne |
| CN114375368B (zh) * | 2019-09-13 | 2025-10-28 | 西门子歌美飒可再生能源创新与技术有限公司 | 风力涡轮机叶片 |
| GB202015867D0 (en) * | 2020-10-07 | 2020-11-18 | Blade Dynamics Ltd | Blade shell section for a wind turbine blade |
| GB2602444B (en) * | 2020-11-11 | 2023-05-10 | Coeus Ltd | Structural shell |
| US12053908B2 (en) | 2021-02-01 | 2024-08-06 | Regen Fiber, Llc | Method and system for recycling wind turbine blades |
| KR102513583B1 (ko) * | 2021-05-04 | 2023-03-22 | 두산에너빌리티 주식회사 | 풍력 발전기의 블레이드 및 이를 포함하는 풍력 발전기 |
| FR3128155B1 (fr) * | 2021-10-20 | 2023-11-10 | Safran | Procédé de fabrication d’une aube comprenant une cavité renforcée |
| PT4177045T (pt) * | 2021-11-08 | 2024-07-17 | Siemens Gamesa Renewable Energy As | Método de reparação de uma pá de turbina eólica e respetiva pá de turbina eólica reparada |
| GB2627440A (en) * | 2023-02-20 | 2024-08-28 | Dfm Blades Ltd | Method of manufacturing a spar structure, a spar structure for a wind blade, a wind blade, and an apparatus for manufacturing a spar structure |
| US12291014B2 (en) | 2023-08-21 | 2025-05-06 | B/E Aerospace (Uk) Limited | Mineral additive modified basalt fibre based PMMA composites for ballistic applications |
| WO2025061588A1 (fr) * | 2023-09-22 | 2025-03-27 | Owens Corning Intellectual Capital, Llc | Structure de renforcement allongée pour pale d'éolienne |
| CN118684836B (zh) * | 2024-08-29 | 2024-11-15 | 橙志(上海)环保技术有限公司 | 一种风电叶片再生复合材料及其制备方法和应用 |
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Also Published As
| Publication number | Publication date |
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| US11624347B2 (en) | 2023-04-11 |
| US20200018283A1 (en) | 2020-01-16 |
| JP2020510157A (ja) | 2020-04-02 |
| KR102478910B1 (ko) | 2022-12-16 |
| CN110612392A (zh) | 2019-12-24 |
| BR112019018836A2 (pt) | 2020-04-14 |
| JP7158401B2 (ja) | 2022-10-21 |
| FR3063774A1 (fr) | 2018-09-14 |
| EP3596338A1 (fr) | 2020-01-22 |
| FR3063774B1 (fr) | 2021-06-11 |
| CA3055485A1 (fr) | 2018-09-27 |
| MX2019010637A (es) | 2019-10-17 |
| CN110612392B (zh) | 2022-07-12 |
| KR20190122834A (ko) | 2019-10-30 |
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