JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 29
Feature Wind Energy
Is it possible to do better ?
resin Resin ......................... p29 Prepreg ..................... p35 Trend .......................... p36 Design ...................... p39 Offshore ................... p46
Polyurethane composites for wind turbine blades
T
In this paper, we will discuss the development of this new polyurethane class of resins and its implication in the manufacture of large wind turbine blades, and compare its performance in composite systems to systems made from epoxy and vinyl ester.
By
Usama E. Younes, Principal Scientist Bayer MaterialScience LLC Frank W. Bradish, Director, advanced material technology, Molded Fiber Glass Research Company
he wind power industry’s move toward developing and manufacturing longer, larger and more productive wind blades requires advances in composite technologies used in their construction. Bayer MaterialScience, LLC developed a new class of stronger and tougher composite materials for the manufacture of 1.5+ MW turbine wind blades. These new low-viscosity, long-gelling polyurethane systems offer several advantages over epoxy and vinyl ester-based composites. These advantages include: zero VOCs, sustainable raw materials from renewable resources (soy), faster infusion times, and superior tensile fatigue, interlaminar fracture toughness and fatigue crack growth. For example, in tensile fatigue, the polyurethane-based composite outperformed vinyl ester and epoxy by as much as 9 and 14.8 order of magnitudes. Whereas, at a peak load of 69 MPa, the epoxy fractured at 93,216 cycles and the vinyl ester at 57,507 cycles, while the polyurethane fractured only after 849,881 cycles. Additionally, in interlaminar fracture toughness testing (G1C), the polyurethane composite with its stable delamination G1C value of 3,798 J/m² outperformed epoxy by a factor of 2, and
2012 年 11 年 07-09 年
MARCH 27. 28. 29 . 20l2
JEC - 25 bd de l’Amiral Bruix -75116 Paris - France www.jeccomposites.com
No70 January - February 2012 /
Stickers Paris 2012.indd 1
jec composites magazine 29
07/12/2011 18:21:49
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JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012
Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012
Cover
Edito
Point of view: Lanxess, the only fully integrated producer of glass reinforced thermoplastic
Contents
Agenda of Events
COMPANY & BUSINESS
- In Brief - Hexcel to commission two new carbon fibre production lines
- Core materials - Celebrating 25 years of ideas
- Fabrics - Diatex, a generation of growth
APPLICATIONS
- Motorbike - Brammo Empulse uses prepreg to drop weight
- Automotive - A revolution e-mobile concept car
- Automotive - Composite manufacturing simulation to drive process and design innovation
- Housing - A school made entirely of composites for 200 children
MARKET
- Wind - Double-digit growth for global wind O&M market
- China - «Companies with weak R&D capabilities will find it difficult to survive in the future»
- Certification - Rescoll qualified by Airbus for tests on composites
- Human ressources - CEO, designing strategy and corporate vision
FEATURE WIND ENERGY
- Resin - Polyurethane composites for wind turbine blades
- Prepreg - New best-in-class 10-kW wind turbine
- Trend - Composites in wind energy
- Design - Innovative design attempts for large-scale wind turbine blades
- Offshore - Vertiwind and Winflo, two projects for floating offshore wind turbines
RESEARCH & DEVELOPMENT
- Thermoplastics - Study of metal replacement with poly-etherimide/carbon fibre compounds in air-craft food tray arms
- Welding - Optimizing ultrasonic welding of carbon fibrereinforced polyetherimide
TECHNOLOGY & INNOVATIONS
- Innovation
- NDT - Health monitoring assessment and non-destructive inspection of composite structures for surface transport applications
- Manufacturing - Composites are the materials for the future
Index
In the world
Asia: 4 conferences
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - Cover
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 2
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - Edito
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - Point of view: Lanxess, the only fully integrated producer of glass reinforced thermoplastic
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 5
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - Contents
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 7
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - Ad1
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - Ad2
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - In Brief - Hexcel to commission two new carbon fibre production lines
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Core materials - Celebrating 25 years of ideas
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 11
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Fabrics - Diatex, a generation of growth
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Motorbike - Brammo Empulse uses prepreg to drop weight
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Automotive - A revolution e-mobile concept car
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 15
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Automotive - Composite manufacturing simulation to drive process and design innovation
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Housing - A school made entirely of composites for 200 children
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 18
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Wind - Double-digit growth for global wind O&M market
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 20
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - China - «Companies with weak R&D capabilities will find it difficult to survive in the future»
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 22
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 23
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Certification - Rescoll qualified by Airbus for tests on composites
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Human ressources - CEO, designing strategy and corporate vision
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 26
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 27
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 28
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Resin - Polyurethane composites for wind turbine blades
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 30
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 31
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 32
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 33
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 34
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Prepreg - New best-in-class 10-kW wind turbine
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Trend - Composites in wind energy
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 37
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 38
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Design - Innovative design attempts for large-scale wind turbine blades
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 40
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 41
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 42
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 43
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 44
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 45
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Offshore - Vertiwind and Winflo, two projects for floating offshore wind turbines
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 47
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Thermoplastics - Study of metal replacement with poly-etherimide/carbon fibre compounds in air-craft food tray arms
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 49
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 50
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 51
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 52
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 53
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Welding - Optimizing ultrasonic welding of carbon fibrereinforced polyetherimide
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 55
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 56
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 57
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 58
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Innovation
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - NDT - Health monitoring assessment and non-destructive inspection of composite structures for surface transport applications
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 61
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 62
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 63
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - - Manufacturing - Composites are the materials for the future
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - Index
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - In the world
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - Asia: 4 conferences
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 68
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 69
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 70
JEC COMPOSITES MAGAZINE - Issue #70 - January/February 2012 - 71
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