codex-uk ´gebrauchsgegenstände´ 3. juni 2008 / bmgfj renewable vs. biodegradable new materials...
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Codex-UK ´Gebrauchsgegenstände´ 3. Juni 2008 / BMGFJ
Renewable vs. Biodegradable
New materials for packaging technology
Michael Pitzlofi – Department Packaging
Titelformat bearbeitenAustrian Research Institute for Chemistry and Technology - ofiwww.ofi.at
CROPACK 2010
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An inconvient truth?
Source: www.youtube.com 2010-02-18
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Solution – Bioplastics?
Recent headlines:
Coca-Cola Co announced the selective global roll-out of
its new PET bottle made from up to 30 per cent plant materials such as sugar and molasses.
Bioserie iPhone® Case is really green!
Advertising slogan:Packaging without the guilt? Bioplastics
Source: www.plasticsnews.com 2010-02-17 www.ubergizmo.com 2010-02-22
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New materials?
Before 1940 approx. 80 % of commercially available biodegradable plastic and its monomers were discovered and described
1938 Polyethylen
In the 70s:• Oil crises (1973)
• Set point for further development
In the 80s:• Oil crises (1980) – pilot plants for bioplastics
• Oxodegrable products – inhibited the further development?
Source: NARAYAN R. et al. 1994www.n24.de 2010-02-17
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Definition of Bioplastic
Up to now not fixed (CEN/TC 249/WG 17 planed release 2010)
According to European Bioplastics:Plastic based on renewable resources
Biodegradable polymers which meet all criteria of scientifically recognized norms for biodegradability and compostability of plastics and plastic products (EU: EN 13432 / EN 14995, US: ASTM D-6400, ISO 17088).
NOT oxodegradable!
Source: www.european-bioplastics.org 2010-02-17
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Definition of Bioplastic
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Development of the market
Capacity 2009 400.000 t worldwide
Small market, but high growth rates up to 10 %
Source: www.european-bioplastics.org 2010-02-17
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Research > Development > Pilot Plant > Commercialization > World-scale Plant > Industrial production
State of development
Source: bioplastics Magazine 03/2007
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Biodegradable materials
In general 4 materials commercially available• Starch-based polymers
• Polylactic acid
• Polyhydroxyalkanoates
• Cellulose derivates
Chitosan?
Polymer blends and composites
Source: www.basf.com 2008-09-12YU L. et al. 2006
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Maize and/or potatoe starch in blend with polycaprolactones and other biodegradable esters
Europeas most common bioplastic
Starch-based polymersMater-Bi®
Source: www.novamont.com 2009-12-01
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Plantic®
Starch from maize and hydroxypropyl, Plantic Technologies (AUS)
Solanyl® Starch from potatoes, Rodenburg Biopolymers(NL)
Bioplast® Starch blend, Biotec (DE)
Biopar® Starch from potatoes and blends, Biop AG (D)
Similar to PE (converting)
Limited applications!
Starch-based polymersOthers
Source: www.plantic.com.au 2009-04-01
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Polylactic acid
Main producer: NatureWorks (US)
Other Producers: Hycail (FI), Toyota (J) and Uhde Inventa (D)
Glucose from maize or lactose from whey
Source: LIM L.-T. et al. 2008
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Ecovio®
45 % PLA + Ecoflex®, BASF (D)
Ecovio® L-Foam
75 % PLA + Ecoflex®, BASF (D)
Bio-Flex®
PLA + Copolyester, FKuR (D)
Similar to PET and/or PS (converting)
Sensitive to temperature!
Polylactic acid blends
Source: www.basf.com 2008-09-12YU L. et al. 2006
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Mirel™ Metabolix (US)
Biomer™ Biomer (D)Fermentation of starch, rape, plant residues, etc.
Only Injection Moulding!
PHB, PHV, PHBV, ...
Polyhydroxyalkanoates
Source: www.metabolix.com 2008-09-12
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NatureFlex™
Innovia (UK)
Cellulose derivates
Source: www.innoviafilms.com 2008-09-12
Barrier coatings!
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Thermal properties: Melting temperatureBiopolymers comparable with conventional plastics
Source: WEBER C. J. 2000
Comparision
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Oxygen transmission rateBiopolymers in the midfield
Source: WEBER C. J. 2000
Comparision
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Water vapour transmission rateBiopolymers in the midfield
Source: WEBER C. J. 2000
Comparision
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Transmission of UV-light
Comparision
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Food safety packaging material
Nearly all starting substances are listed
Migration values are below legal limits
No significant difference in microbial growth on packaging material
No desintegration during shelf life
Migrants from PLA are safe
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End of lifeComposting?
Source: WEBER C. J. 2000
End of life
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End of lifeCompsoting?
Source: ENDRES H.-J. 2009
End of life
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Michael PitzlE-Mail: [email protected]
Austrian Research Institute for Chemistry and Technology - ofi
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