flaxprecomp debriefing - sim-flanders
TRANSCRIPT
FlaxPreComp debriefing
een korte, oriënterende inleiding
Ignaas Verpoest Composite Materials GroupDepartement MateriaalkundeKU Leuven
Established in aircraft, breakthrough in automotive
24/10/20172
BMW i3
… and sports !!!
From very small to very big …
Composieten: marktvooruitzichten
5
Source: CCeV / AVK Market Report 2016
Global Composite Market for CarbonFRP (kT),
Estimation2016 -2022
Source: Lucintel’s market report, “Growth Opportunities in the Global Glass Fiber Market”
What we are used to…
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• Fibres o Carbon
o
o Glass
• Rovings • 2D or 3D-textileso 2D
o 3D
Why using biobased fibres?
SIM-M2i Meeting Materials – 10 May 2016 7
• Natural fibres have enormous potential for LCI-reduction with minor property loss:
Ecological impact of production of composites…
SIM-M2i Meeting Materials – 10 May 2016 8
• …only energy (MJ) to produce 1 lit of material
0
50
100
150
200
250
300
350
400
0 100
koolstof
glas
vlas
Onlypolymer
OnlyCarbon fibres
OnlyGlass fibres
OnlyFlax fibres
Hybrid CF + flax
Different types of natural Fibres
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PLANT / Lignocellulosic FIBRES
Wood Stem/Bast
FlaxJute
HempKenafRamie
Leaf
SisalAbaca
PineappleBananaFique
HenequenPalm
Seed/Fruit
CottonCoconut
Grass
BambooRice
ANIMAL FIBRES
SoftwoodHardwood
SilkWool
Where is flax grown?
Annual production of flax fibres in Europe
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Flax fibre production in Europe (Kt), (2014 data)
Cost range of natural and glass fibres
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… but: flax is ~50% lighter than glass !
What’s really different with natural fibres
• Natural fibres are not homogeneouso Technical fibre � Elementary fibre � Layers � crystalline Cellulose Microfibrils
Technical fibre
Elementary
fibre
Hearle Jws. Journal of Applied Polymer Science. 1963;7(4):1207-23.e
Baley C , Le Duigou A, et al. Bio-based Composites for High-Performance Materials:, 2014.
FLAX
What’s really different with natural fibres
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• Natural fibres are not continouso Adding twist to the yarn seems necessary…
o How to include this in the modelling?
Technical fibre, Length < 80 cm
Elementary fibre
Length ~ 3 cm
Yarn
HacklingScutching Doubling/stretching Roving bench Spinning: TWIST
Weaving: CRIMP
Random mat
2D
Flax: from plant to textile… for composites !
The value chain as it was up to some yearsago….: oriented towards textile markets
The challenge for FlaxPreComp
A MARKET REALITY
24/10/2017 Appendices: Pre-defense Farida Bensadoun 16
2015: “Synthetic by Nature”
An exhibition on designing with natural fibre and biobased composites in the Design Museum Gent
Conclusion: why using natural / flax fibres?
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Ligther and greener
Sustainable, environment-friendly &
CO2 neutral
APPLICATIONS
Nice visualaspect, natural
look and image
Good mechanical properties
Good thermal, acoustic & vibration
damping
Not abrasive and good chemical resistance
Good fatigue and reasonable impact
resistance
Recyclable