Nanokompozyty polilaktyd/wielościenne nanorurki węglowe - otrzymywanie i właściwości elektryczne

Ł. Pietrzak; J. K. Jeszka

Published : 2010-08-30

Vol. 55 No. 7-8 (2010)

Polylactide/multiwalled carbon nanotube composites - synthesis and electrical properties

Ł. Pietrzak J. K. Jeszka

Abstract

A procedure for the synthesis of polymeric nanocomposites comprising of polylactide (PLA) and well-dispersed multiwalled carbon nanotubes (MWCNT) (Figs. 3, 4) has been presented. The method involves the dispersion of the nanotubes in the PLA solution with the aid of ultrasounds and a rapid precipitation of the polymer composite in order to avoid reaggregation of the CNTs. The dependence of electrical conductivity on the content of the conducting phase for the polylactide composites containing various amounts of nanotubes obtained in this method was determined (Fig. 5). For comparison, composites with carbon black (Monarch 1100) were also prepared using the same procedure. The obtained PLA/MWCNT composites were characterized by low percolation threshold (0.25 wt. %) and a conductivity value of 5 · 10-² S/cm (with 1 wt. % of nanotubes). The obtained percolation threshold is ten times lower, and conductivity 100 times higher than in the case of respective composites containing carbon black. These differences were attributed to the high aspect ratio of the MWCNTs and their high conductivity.

Keywords

nanokompozyty ; nanorurki węglowe ; polilaktyd ; przewodnictwo elektryczne ; próg perkolacji ; dyspersja nanocomposites ; carbon nanotubes ; polylactide ; electrical conductivity ; percolation threshold ; dispersion

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Pietrzak, Ł., & Jeszka, J. K. (2010). Polylactide/multiwalled carbon nanotube composites - synthesis and electrical properties. Polimery, 55(7-8), 524-528. Retrieved from https://ichp.vot.pl/index.php/p/article/view/1036

References

Saito R., Dresselhaus G., Dresselhaus M. S.: „Physical properties of carbon nanotubes”, Imperiał College Press, London 1998.

2. Przygocki W., Włochowicz A.: „Fullereny i nanorurki”, WNT, Warszawa 2001.

3. Thostenson E. T., Ren Z., Chou T.-W.: Compos. Sci. Technd. 2001, 61, 1899.

4. Potschke P., Fornes T. D., Paul D. R.: Polymer 2002, 43, 3247.

5. Zhang Q. H., Lippits D. R., Rastogi S.: Macromolecuks 2006, 39, 658.

6. Zhang Q. H., Rastogi S., Chen D. J., Lippits D., Lemstra P. J.: Carbon 2006, 44, 778.

7. Mierczynska A., Friedrich J., Maneck H. E., Boiteux G., Jeszka J. K.: Cent. Eur. J. Chem. 2004, 2, 363.

8. Bauhofer W., Kovacs J. Z.: Compos. Sci. Technol. 2009, 69, 1486.

9. Mierczynska A., Marne-L’Hermite M., Boiteux G., Jeszka J. K.: J. Appl. Polym. Sci. 2007, 105, 158.

10. Moniruzzaman M., Winey K. L: Macromolecuks 2006, 39, 5194.

11. Wu D., Zhang Y, Zhang M., Yu W: Biomacromolecules 2009, 10, 417.

12. Chiu W. M., Chang Y. A., Kuo H. Y, Lin M. H., Wen H. C.: J. Appl Polym. Sci. 2008, 108, 3024.

13. Kuan C. F., Kuan H. C., Ma C. C. M., Chen C. H.: J. Phys. Chem. Solid 2008, 69, 1395.

14. Yillmow T., Potschke P., Pegel S., Haussler L., Kretzschmar B.: Polymer 2008, 49, 3500.

15. Ham H. T., Choi Y. S., Chung I. J.: J. Colloid Interface Sci. 2005, 286, 216.

16. Daraboina N., Madras G.: Ultrason. Sonochem. 2009, 16, 273.

17. Akyuz A., Catalgil-Giz H., Giz A. T.: Macromol. Chem. Phys. 2008, 209, 801.

18. Kirkpatrick S.: Rev. Mód. Phys. 1973, 45, 574.

19. Zallen R.: „Fizyka ciał amorficznych”, PWN, Warszawa 1994.

20. Przygocki W., Włochowicz A.: „Fizyka Polimerów”, PWN, Warszawa 2001.

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