EP2976216A2 - Verbesserungen an oder im zusammenhang mit verstärkten verbundwerkstoffen - Google Patents

Verbesserungen an oder im zusammenhang mit verstärkten verbundwerkstoffen

Info

Publication number
EP2976216A2
EP2976216A2 EP14712644.5A EP14712644A EP2976216A2 EP 2976216 A2 EP2976216 A2 EP 2976216A2 EP 14712644 A EP14712644 A EP 14712644A EP 2976216 A2 EP2976216 A2 EP 2976216A2
Authority
EP
European Patent Office
Prior art keywords
fibrous
layer
tows
fibre
reinforcement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14712644.5A
Other languages
English (en)
French (fr)
Inventor
Joerg RADANITSCH
Johannes Moser
Daniel Garay Baldazo
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.)
Hexcel Holding GmbH
Original Assignee
Hexcel Holding GmbH
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 Hexcel Holding GmbH filed Critical Hexcel Holding GmbH
Publication of EP2976216A2 publication Critical patent/EP2976216A2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/543—Fixing the position or configuration of fibrous reinforcements before or during moulding
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/05—5 or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B32B2260/023—Two or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2603/00—Vanes, blades, propellers, rotors with blades
    • 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

Definitions

  • Wind turbine blades are increasing in size particularly in length, the lengths of some blades now exceeds 50 metres and in some instance exceeds 70 metres. This increase in length requires greater strength which requires thicker blades made from larger stacks of multiple layers of composite fibre and resin reinforcement, it is preferred that the thickness be accomplished by increasing the number of layers rather than increasing the thickness of the individual layers. However as the number of layers increases it is increasingly difficult to get the desired surface finish and homogeneity throughout the thickness and along the length of the blade.
  • resin preimpregnated fibrous reinforcement prepreg
  • dry fibre layers are laid up in a mould and these are subsequently infused with a curable resin matrix using a vacuum assisted resin transfer moulding process (VARTM).
  • a fifth moulding material in the form of a unidirectional laminate wherein the laminate comprises fibrous reinforcement in the form of unidirectional carbon fibres and a fabric on one or both sides of the carbon fibres, the fabric being stitched thereto, said fibrous reinforcement being impregnated with resin and cured.
  • the fabric may comprise fibres in the warp direction and fibres in a weft direction, said weft direction being at 90° or at an angle between 30° to 85°, preferably between 60° to 80°.
  • the fabric may be non-woven.
  • the fabric may comprise a glassfiber.
  • impregnated and unimpregnated tows may be co-located to form a single plane of fibrous reinforcement.
  • the longitudinal axes of the impregnated and unimpregnated tows in a layer or sheet of the fibrous reinforcement may be parallel to one another and their axes may all be located in a single plane.
  • the present invention is particularly concerned with providing a prepreg that can be based on a reactive epoxy resin that can be cured at a lower temperature with an acceptable moulding cycle time.
  • Curing at a pressure close to atmospheric pressure can be achieved by the so-called vacuum bag technique. This involves placing the prepreg or prepreg stack in an air-tight bag and creating a vacuum on the inside of the bag. This has the effect that the prepreg stack experiences a consolidation pressure of up to atmospheric pressure, depending on the degree of vacuum applied.
  • Figure 6 presents a microscopy cross section of lay-up 2 of Figure 1 ;
  • Figures 8 and 9 show that the use of a cured laminate in combination with prepreg layers 3 in the stack produces a more regular and uniform surface even if a disturbance (wire (4) ) is present in the lay-up structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Textile Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Reinforced Plastic Materials (AREA)
  • Laminated Bodies (AREA)
  • Wind Motors (AREA)
EP14712644.5A 2013-03-22 2014-03-21 Verbesserungen an oder im zusammenhang mit verstärkten verbundwerkstoffen Withdrawn EP2976216A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT501992013 2013-03-22
PCT/EP2014/055708 WO2014147222A2 (en) 2013-03-22 2014-03-21 Improvements in or relating to fibre reinforced composites

Publications (1)

Publication Number Publication Date
EP2976216A2 true EP2976216A2 (de) 2016-01-27

Family

ID=50382440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14712644.5A Withdrawn EP2976216A2 (de) 2013-03-22 2014-03-21 Verbesserungen an oder im zusammenhang mit verstärkten verbundwerkstoffen

Country Status (3)

Country Link
EP (1) EP2976216A2 (de)
KR (1) KR20150135378A (de)
WO (1) WO2014147222A2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160146184A1 (en) * 2014-11-25 2016-05-26 General Electric Company Methods of manufacturing rotor blade components for a wind turbine
GB2533629A (en) * 2014-12-23 2016-06-29 Hexcel Composites Ltd Moulding materials with improved surface finish
EP3037257A1 (de) * 2014-12-24 2016-06-29 Hexcel Holding GmbH Verbesserungen an oder im zusammenhang mit laminaten
EP3100852B1 (de) * 2015-06-03 2017-11-15 Tusas-Türk Havacilik Ve Uzay Sanayii A.S. Gebogene laminierte struktur
GB2551104A (en) * 2016-04-12 2017-12-13 Hexcel Reinforcements Uk Ltd Reinforcement fabric
US10738759B2 (en) 2017-02-09 2020-08-11 General Electric Company Methods for manufacturing spar caps for wind turbine rotor blades
US10527023B2 (en) 2017-02-09 2020-01-07 General Electric Company Methods for manufacturing spar caps for wind turbine rotor blades
CN107672240A (zh) * 2017-10-17 2018-02-09 深圳市零壹创新科技有限公司 一种碳纤维板材及其制造方法
US10677216B2 (en) 2017-10-24 2020-06-09 General Electric Company Wind turbine rotor blade components formed using pultruded rods
CN109988395B (zh) * 2017-12-29 2022-03-18 洛阳尖端技术研究院 环氧树脂-玻璃纤维预浸料、树脂纤维复合材料、其制备方法及航空飞行器
US11738530B2 (en) 2018-03-22 2023-08-29 General Electric Company Methods for manufacturing wind turbine rotor blade components
US20200171763A1 (en) * 2018-11-30 2020-06-04 Arris Composites Inc. Compression-molded fiber-composite parts and methods of fabrication
GB201916917D0 (en) * 2019-11-20 2020-01-01 Hexcel Composites Ltd Moulding material
CN114184497B (zh) * 2020-09-14 2023-12-22 广州汽车集团股份有限公司 一种织物剪切性能参数的测试方法与装置
CN113117998A (zh) * 2021-04-14 2021-07-16 重庆嘉瑞智建科技有限公司 一种基于玄武岩纤维的防腐施工方法
CN113914604A (zh) * 2021-10-28 2022-01-11 广东皓强科技有限公司 建筑模板和挤出成型装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014131770A1 (en) * 2013-02-26 2014-09-04 Hexcel Holding Gmbh Manufacture of a moulded part

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0205498D0 (en) 2002-03-08 2002-04-24 Structural Polymer Systems Ltd Moulding material
CN101903161A (zh) * 2007-12-20 2010-12-01 维斯塔斯风力系统集团公司 由树脂预浸渍纤维制造复合部件的方法
EP2168745B1 (de) * 2008-09-30 2012-10-24 Hexcel Composites, Ltd. Zur Hälfte imprägniertes Material mit einer Oberflächenkunststoffschicht um Eigenschaften des Materials zu verbessern
AT511507A1 (de) * 2011-05-20 2012-12-15 Hexcel Holding Gmbh Formmaterial
DK2661357T3 (en) * 2011-01-05 2016-05-30 Vestas Wind Sys As Laminate preform for a wind turbine blade and method for its manufacture
EP2711170A1 (de) * 2012-09-19 2014-03-26 Hexcel Holding GmbH Verbesserungen an oder im Zusammenhang mit verstärkten Verbundwerkstoffen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014131770A1 (en) * 2013-02-26 2014-09-04 Hexcel Holding Gmbh Manufacture of a moulded part

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014147222A2 *

Also Published As

Publication number Publication date
WO2014147222A3 (en) 2015-10-08
KR20150135378A (ko) 2015-12-02
WO2014147222A2 (en) 2014-09-25

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