Conductive%20Polymer%20Nanocomposites

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Conductive Polymer Nanocomposites

• G?a??t?????? ???????

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?????µa ????µe??

• ??a?a??f???a? sta µ?sa t?? '70
• ?? µ??? p?? d?af???p??e? p???? ta p???µe?? ap?
  ta µ?ta??a se d??f??e? efa?µ???? e??a? ?
  a????µ?t?ta.
• ? sp??a e??a? ? ?d?a a????? µe ?d??t?te?
  p???µe???.

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?fa?µ????

• ??ast???? µpata??e?
• ??s??t??e?
• ?/? µ???s?
• PLEDs
• ??ast??? chips
• ?e???t?? µ?e?

• ???stas?a ap? ESD
• ?fa?µ???? st?? µ????-??e?t??????
• ????µe?? f?t?ß??ta???
• ??µ??? µ???s?
• ?.a.

?a ?a??te?a ?µ?? e??a? ?p?asta!
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?e p??s?eta ? ?????

• Polyacetylenes (PA)?
• Polypyrroles (Ppy)?
• Polyparaphenylenes (PPP)
• Polyanillines
• Polythiopenes
• ?eta???p???µe??
• ?.a.

• Carbon blacks
• Polyacrylonitrile carbon fibers ( a???a????µata
  )?
• Metal fillers
• ?.a.

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??d? nanocomposites
?a ?a??s???eta ap?te????ta? ap? t? ß?s? ?a? ta
?a??s?µat?d?a

• ?eta??d?
• ???d?
• S?????e?d?
• Sfa?????
• ?.a.

• ????µe??
• ?eta?????
• ?e?aµ???

???fa??? ?a? ta ?a??s?µat?d?a ???????ta?
a?????a µe t? ????? t???.
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?a??p??s?eta

• ?a ?a??s?µat?d?a ???s?µ?p?????ta? ap? t?? 9?
  a???a st? µes?p?taµ?a ??a ???µat?sµ???.
• ??sa se p???µe?? ??a a????µ?t?ta ???s?µ?p??????a?
  p??fa??? p??? p?? µet?.
• ???s?µ?p?????ta? ?????? p??s?eta ap? ????a?a,
  µ?ta??a ?a? ?e?aµ???.
• ?e???? e?e???t??? e?d?af???? ??a ??a s?µat?d?a.

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?a?ade??µata

• Polyimine NiO -gt ?a???t???? ?d??t?te?
  
• Poly-N-vinylcarbazole polypyrrole or polyaniline
  ( PANI ) ?????e?d? s?µat?d?a d????d??? t??
  µa??a???? ( MnO2 ) -gt ?????µ?t?ta DC
  a??a??µe?? 107 ??? 1010 f??e? !
• Polypyrrole or polythiophene V2O5 -gt S?µa?t???
  a???s? a????µ?t?ta?

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S?µa?t??? st???e?a
a) ? pe??e?t???t?ta a????e? t?? t??p?
a????µ?t?ta?.

• ?e µ???? pe??e?t???t?ta ? a????µ?t?ta e?a?t?ta?
  ap? t? p???µe??? ?a? e??s??eta? µ??? µ?s? t??
  a???s?? t?? f????? ap? ta p??s?eta.
• ?e µe?a??te?? pe??e?t???t?ta ? a????µ?t?ta
  ?fe??eta? se fa???µe?a s??a??a?.
• ?e???? ? a????µ?t?ta ???eta? µeta?????

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• Stad?a?? ße?t??s? t?? d?asp???? ?a??s??????
  ????a?a se p???µe???. ? ?a??te?? a????µ?t?ta
  ???eta? ap? t?? ß??t?st? d?asp??a.

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ß) ?? ta p??s?eta ????? ???d? ? s?????e?d? µ??f?
pa??e? ???? ? ?ate????s? t???

• ? ?ate????s? µ??f?p??e?ta? µe µa???t??? ped?a
  ?at? t? s???es? t?? p???µe????, ? µe s???es?
  a???ße?a?.

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?) ?e???? ???? pa??e? ? te????? µe t?? ?p??a
???eta? ? s???es? t?? ??????

• ?? ? p???µe??sµ?? ???eta? pa???s?a ?a??p??s??t??
  ( in situ ) t? te???? ap?t??esµa ?a e??a? ????
  ?a??te?? ap'?t? a? ta p??s?eta e?sa????? a???te?a.

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

• ?????? ep?????? ??a ????? a?????a µe t??
  efa?µ???.
• S?et??? a???ß? a??? ft???te?a ap? ???e? ??se??.
• ???µ? e??a? ????ste? p????? ?d??t?te? t???, e????
  ß?e?e? ????? µe µa???t????, pa?aµa???t????,
  ?µ?a????µe? ?a? ?pe?a????µe? ?d??t?te?.

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?a??p??s?eta ??af?t?

• Ft??? ?a? e?af?? ?????.
• S?et??? ap?? pa?a???? µe ??µ???? µe??d???.
• S?µa?t??? a???s? a????µ?t?ta? t?? t???? t?? 103
  1017 !
• ?a?? ??a µetat??p? µ???t? se ?µ?a????.
• ? ap??t?s? st??? ?a??s????e? ??a efa?µ???? p??
  de? apa?t??? µe???? a????µ?t?ta.
• ?a??te?a ap? carbon blacks

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?a??s????e? ????a?a

• ?? e??a?

• ??µ?? ????a?a st?? sp2 desµ? p?? ??µ?????
  t????µ??a f???a ??af?t?.
• ?p????? ?a ????? ??a t????µa ? p???? t????µ??a
  ?µ?a??????.
• ??p???t???? ?e?µ????, µ??a????? ?a? ??e?t?????
  ?d??t?te?.

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??µ? ?a? a????µ?t?ta

• ? µe???? a????µ?t?ta ?fe??eta? st?? ?d?a t? d?µ?
  t?? s????a.
• ???? t?? µ???d??stat?? ?a?a?t??a ta ??e?t????a
  s?ed????ta? ????te??.
• ?e?a??te?? µet??µ??? p?s?t?ta ?e?µat?? se ?????,
  109 ?/cm2 !
• ??????a µe t?? t??p? t????µat?? ep?t?????eta? ?
  a????µ?t?ta, n-m p???ap??s?? t?? 3.

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• ?? d????sµa d??e? t?? t??p? t????µat?? t??
  ?a??s????a ?a? a?????a e??a? ?µ?a????? ? a?????.

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?a??s????e? ????a?a

• ?e???t? ?????, t??p?? pa?a?????

• Arc discharge
• Laser ablation
• Chemical vapour deposition
• Catalyst sol gel
• ???e? ?a???t?µ?? µ???d?? p?? a?apt?ss??ta? a??µ?

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???p?? µ???? µe p???µe??

• ???µ??? µ??? ??at?????? µ???d?? ??a p????
  p???µe?? p?? de? ???????.
• ???? se d????µµa ? p?? ????? ??s?.
• ???? se ??t??e? ?p?s?? p??? d?aded?µ???
  µ???d??.
• In situ ??µ???? µ???d??.

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• ?? ?d?? p???µe??? µe d?af??et???? ??e?d????
  d?e??as?e? ?a? ?ate??as?a, µe ap?t??esµa t??
  d?af??et??? a????µ?t?ta.

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??? ?e?d????? ?? ?a??s????e?

• ??p???t???? µ??a????? ?a? ?e?µ???? ?d??t?te? p??a
  ap? t?? a????µ?t?ta p?? de? s??d?????? ???a ?????
  ta?t?????a.
• ?e???? a???? ??a µe????t???? efa?µ???? t??? se
  s???eta p???µe??.
• ?aµ??? percolation limit.
• ???? t?? ?e????te??? efa?µ???? t??? ? t?µ?
  ??st??? p?fte? s??e??? µe t?? a??a??µe?? ??t?s?.

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?fa?µ????

• ??e?t??stat??? µ???s? se ?e??f? ae??p????? ?a?
  a????? ?a?s?µ??.
• ???stas?a ap? ??e?t??µa???t??? a?t???ß???a.
• ?e??st?a a???? ??a d??fa???? a??????.
• ??af???? a????? ?a? ?µ?a?????.
• ?pe?p????t??.
• Ge????te?e? efa?µ???? ?a??s?????? p??a ap? ta
  p???µe??.

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References

• 1. L.A. Utaki. Clay-containing polymeric
  nanocomposites.
• 2. ACS symposium series 804. Polymer
  Nanocomposites.
• 3. J.A. Chilton and M.T. Goosey. Special polymers
  for electronics optoelectronics.
• 4. G.G. Wallace et.al. Conductive electroactive
  polymers.
• 5. M.O.W. Richardson. Polymer engineering
  composites.
• 6. L. Nicolais and G. Carotenuto. Metal-polymer
  composites.
• 7. R.Khare , S. Bose. CNT based composites, a
  review.
• 8. J.H. Du. The present status and key problems
  of carbon nanotube based polymer composites
• 9. N.Coleman. Mechanical reinforcement of
  polymers using nanotubes.
• 10. M. Moniruzzaman. Polymer nanocomposites
  containing carbon nanotubes.
• 11. Klaus Friedrich, Stoyko Fakirov, Zhong Zhang.
  Klaus Friedrich, Stoyko Fakirov, Zhong Zhang
• 12. Terje A Skotheim, Ronald L Elsenbaumer, John
  R Reynolds, Inc NetLibrary.
• Handbook of Conducting Polymers
• 13. Bruno Scrosati. Applications of Electroactive
  Polymers.
• 14. Anatolij Dmitrievic Pomogajlo, Vladimir
  Nikolaevic Kestel'man. Metallopolymer
  nanocomposites