JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 27
flax
Flax-based blades for a rooftop wind turbine
Composites Evolution's Biotex Flax was used to manufacture natural
fibre reinforced blades for a rooftop wind turbine at the University of
Stuttgart.
Performance test
T
he blades were conceived, designed
and manufactured by the SWE
(Endowed Chair of Wind Energy)
at the University, the team having found
that Biotex Flax reinforcement's unique
twistless technology gave them the performance characteristics that they were
looking for.
Natural fibre
Along with a range of other materials, the
fibres were tested with different resins
to validate their performance characteristics. SWE found that Composites
Evolution's Biotex Flax correlated best
with the performance they expected and
felt they had a good data basis to make a
lightweight and stiff natural fibre blade.
jute, flax, commingled flax/PLA and
commingled flax/PP (others available
on request) in formats including yarns,
fabrics (woven and non-crimp) and
preconsolidated sheets. n
More information:
www.compositesevolution.com
High performance
Biotex natural reinforcements and intermediates provide the high performance
and easy processing normally associated
with glass fibre composites but with
lower weight and environmental impact.
They are suitable for semi-structural and
decorative applications in sectors such
as automotive, construction, marine,
sports and consumer goods. Biotex uses
a unique twistless technology to ensure
a high degree of fibre alignment and
performance. Standard materials include
The Small Wind Turbines market is growing
No90 June - July 2014 /
Feature Wind energy
SWE's research focuses on improving
the reliability of turbines while reducing
the production costs of wind energy. It
started design in 2011, with the aim of
constructing new rotor blades for the
university's 1kW rooftop wind turbine.
After a trip to "The Eden Project" in
the UK, the team wanted to familiarise themselves with natural fibres and
contacted Composites Evolution to test
the performance of its Biotex materials.
The blade, consisting of 2x2 twill 400gsm
Biotex Flax as the main shell and unidirectional 275gsm Biotex Flax for the belt
and root, was built in two halves. Both
were hand-laminated and then vacuumbagged in two female moulds. The two
separate halves were then joined using
Momentive's RIM 235 epoxy resin.
Once completed, the blades were
assembled onto the rooftop turbine for
performance tests. SWE plans to use
the blades in further tests focusing on
their strength performance compared to
blades constructed from other materials.
A fourth blade was embedded with strain
gauges and the team will be comparing
the results to standard carbon and glass
blades.
jec composites magazine 27
http://www.compositesevolution.com
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014
Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014
Cover
Edito
Point of view: recycling & second life
Contents
COMPANY & BUSINESS In Brief
Recycling
Agenda of Events
APPLICATIONS
Bike
Bridge
MARKET
Thermoset resins
Germany
Carbon
FEATURE WIND ENERGY
Project
SWT
Epoxy
Flax
RTM
Process
Sustainability
LCA
RESEARCH & DEVELOPMENT
Infusion
Toughening
Damage
TECHNOLOGY & INNOVATIONS
CMC
Laser projection
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Cover
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 2
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Edito
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Point of view: recycling & second life
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 5
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Contents
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 7
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - COMPANY & BUSINESS In Brief
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 9
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Recycling
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 11
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Ad1
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Ad2
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 13
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Bike
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 15
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Bridge
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Thermoset resins
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 18
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Germany
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Carbon
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 21
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Project
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - SWT
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 24
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 25
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Epoxy
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Flax
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - RTM
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 29
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Process
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 31
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 32
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Sustainability
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 34
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - LCA
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 36
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 37
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 38
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 39
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 40
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Infusion
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 42
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 43
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 44
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Toughening
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 46
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 47
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Damage
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 49
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 50
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 51
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 52
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - CMC
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 54
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Laser projection
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 56
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - Index
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - In the world
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 59
JEC COMPOSITES MAGAZINE - Issue #90 - June/July 2014 - 60
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