?a??s???eta p???

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?a??s???eta p???µe???? ????? ??a s?s?e?as?a
t??f?µ??
?p?st???d?? ??µ?t?a ?p. ?a????t?? ??ss?? ?.
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?e??e??µe?a

• S?µas?a s?s?e?as?a? t??f?µ??
• ?e?t?????e? t?? s?s?e?as?a?
• ????µe?? st?? s?s?e?as?e?
• ??ape?at?t?ta ?a? ?????s?
• ?e?????? µ?t??s?? d?ape?at?t?ta?
• ???d?asp?µe?a p???µe??
• ?a??????? ?a? s?s?e?as?e?

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Sp??da??t?ta s?s?e?as?a?
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?e?t?????e? t?? s?s?e?as?a?

• ??at??e? p?????ta ?a?a??
• ???µ??e?e? f?a?µ? ap??a?t? se µ????t?? (ß??µ??,
  ?e?? ?a? ?d?atµ??? ?e???, ??e?d?s?, f??),
  t???t??? ?a? ??t?µa
• ??es? st? ???s?, µetaf???, d?a??µ? ?a? eµp??e?s?
  (s??µa, ß????)
• ???µ??e?e? a?a?????s? ta?t?t?ta? ?a? ?d???e?
  ????? ???s? p?????t??
• ?a e???e? p???se??

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????µe?? se s?s?e?as?e? t??f?µ??

1. ????a???????? (PE)
2. ????p??p?????? (PP)
3. ????????-ß??????? a?????? (EVA)
4. ????st?????a (PS)
5. ????ß??????????d?? (PVC)
6. Ya??????µe?? (?)
7. ????te?ef?a????? p???est??a? (PET)
8. ????ß??????? ?????? (PVAc)
9. ?????a?ß????? (PC)
10. ????aµ?d?a (PA)
11. ????ß??????? a?????? (PVOH)
12. ?????d?a p???ß?????d????? (PVDC)
13. ???a

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????µe?? a????e????
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?????a?ß?????
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??ape?at?t?ta(permeability) ?a?
?????s?(diffusion)

• ?p?? ? s??te?est?? d?ape?at?t?ta?

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??e??as?a t?? d?ape?at?t?ta? ??t? ap?sta?e???
s?????e? ??µ?? t?? Fick
?p?? Ds??te?est?? d????s?? t?? ae????
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• ??a?e?µe?? a???? d?a??eta? st? p???µe????
• ?µ???? ??µ?? t?? Henry

?p?? Sd?a??t?t?ta t?? ae???? st? p???µe???
?p? ta pa?ap??? p????pte?
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S?µpe??sµata
(?????? se ?µ??fe? pe??????)
?tµ?sfa????? a???a ???a???? a???a
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?p?pt?se?? pe??ßa????t???? pa?a???t?? se t??f?µa
?a? ?d??t?te? s?s?e?as?a?
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?e?????? µ?t??s?? d?ape?at?t?ta? ae????

• ????d?? ?????? / ?aµ???? p?es??
• ?s?stat?t?? µ???d?? (sta?e?? p?es?, µ?t??s?
  a??a??? t?? s?????t??s??)
• M???d?? a??a??? ????? (?p? sta?e?? p?es?)
• ????d?? µe f??µ-a?s??t??a

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?e?????? µ?t??s?? d?ape?at?t?ta?

• ?e ???s? p??s??f?t? ???as?a? (???a?t??? silica
  gel, CaCl2, ?.?.)
• ?e ???s? a?s??t??a ???as?a?
• ?e a??a?? ???µat??

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???d?asp?µe?a p???µe??

• ?µ??? (p.? ?a?aµp???) ? pa?????a t?? µe s???et???
  p?ast???
• ?????ap???a?t??? (PCL)
• ????ß??????? a?????? (PVOH)
• ??e?fat???? a??µat???? p???est??e? (AAC)
• ?????a?a?t??? ??? (PLA)

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???spas?

• ???d?asp?µe?a (biodegradable)
• ??µp?st?p???s?µa (compostable)
• F?t?-ß??d?asp?µe?a (photobiodegradable)
  d?a??t??
• ???d?aß??s?µa f?s???? pa?????te?
• ?d??-ß??d?asp?µe?a (hydrobiodegradable)
  ?d????s? (?e??) ?a? µetat??p? se , ?e??
  ?a? ß??µ??a
• ????t??? ?a?a???? µe?a???? fa???µe?? t??
  ?e?µ???p???
• F?t?-d?asp?µe?a (photodegradable) ?pe???d??
  a?t???ß???a
• ????t??? ?e? d?asp??ta? ap??s?a f?t??

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(No Transcript)
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?a??????? ?a? s?s?e?as?e?

• ??a??et???? ?d??t?te? (µ????te?? d?ape?at?t?ta se
  ???as?a ?a? a???a) µ????te?? p????
  µ????te?? ??st?? µ????te?? ?ata????s? p??t??
  ???? ?a? e????e?a?

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???s?ete? ??µ???? ??s?e?

• ?????t??? ????? (Fillers) µ??a????? ?d??t?te?
  (efe???sµ??, a?t?stas? se t??ß?, a??e?t???t?ta)
  ?a? µe??s? ??st??? (a?????, d???e?d?? t??
  p???t???, ????,??a??, t???, asß?st? ?.a.)
• ??ast???p???t?? (Plasticizers) e??aµ??a,
  ????µ?t?ta, a??e?t???t?ta p?ast????. p? f?a????
  pa?????a (PAEs)
• ??pa?t??? (Lubricants) µ??f?p???s?
  (s??µat?p???s?) t?? p?ast???? µe ??te?s?, ????s?
  ? ???e? te?????? p.?. Steat??? ??t???
• Sta?e??p???t?? (Stabilizers) ???stas?a ap?
  atµ?sfa????? ??e?d?s? ?a? UV a?t???ß???a
• ???st???? ??s?e? ( Colorants) ???sd?d??? t?
  ep???µ?t? ???µa p.?. ßaf?? ? p??µ??ta (pigments)
• ?p?ß?ad??t??? ?a?s?? (Flame retardants)
  ?a?eµp?d????? t?? ?a?s? ? ?a? a??f?e?? t??
  p?ast????

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F????µ??fa e???e?sµata

• ?s?µßat?t?ta p???µe?? (µ?t?a) µe e???e?sµata

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F????µ??f?? p????

• F???a p????? 1nm
• ????e?a(galleries) ?a?t???ta
  (a?t?st??µ?s?
• f??t??? st? ???sta????? d?µ? t?? f????µ??f??
  p????)
• ???a???? ?d??f??a
• µ? a?aµe???µa
• ?????a?a ??p?f??a
• a?aµe???µa

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??ß?????af?a

• G??t? ?., (2009), ???d?asp?µe?a p???µe??
  ?fa?µ???? ?a? Te?µ?µ??a????? ?d??t?te?
• ??ss?? ?., ???a???? ????? ????? 2?
• ??. ??aß???? ?. , ??ast??? se epaf? µe
  t??f?µa(http//www.elke.teicrete.gr/LinkClick.aspx
  ?fileticket0_pfVNOgiE03Dtabid1034)
• Stoffers N. H., (2004) Certified reference
  materials for food packaging specific migration
  tests development, validation and modelling.
  Wageningen University, The Netherlands

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??ß?????af?a

• http//www.youtube.com/watch?vliipcq-7QGA
• http//www.chemeng.ntua.gr/courses/emt/files/Ch20
  620packaging202007.pdf
• http//www.processindustryinformer.com/Process-Ind
  ustry-Packaging/FOOD-PACKAGING-LEAKS-Packaging-Per
  meability-Testing
• http//www.matter.org.uk/matscicdrom/manual/df.htm
  l
• http//practicalaction.org/docs/technical_informat
  ion_service/packaging_materials.pdf
• http//www.agroamalthia.gr/index.php?optioncom_co
  ntenttaskviewid48
• http//www.econews.gr/2006/08/30/solution-to-pollu
  tion-by-plastic/
• http//www.pac.gr/Newsarticles/2011/nano.html

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???a??st? p???