Simple and convenient method in chemical recycling of poly(ethylene terephthalate) by using microwave radiation

M. M. Nikje; F. Nazari

Published : 2022-08-18

Vol. 54 No. 9 (2009)

Simple and convenient method in chemical recycling of poly(ethylene terephthalate) by using microwave radiation

M. M. Nikje F. Nazari

Abstract

Microwave assisted ester bond breaking of poly(ethylene terephthalate) (PET) to terephthalic acid (TPA) was performed by using glycerin, diethylene glycol (DEG) or monoethanolamine (MEA) as transesterification reagents and KOH or NaOH as the catalysts and results were compared with PET degradation by conventional heating method. Comparisons of reaction times showed significant enhancement of reaction rates in the microwave assisted experiments in comparison with the process going with use of conventional heating. In addition, collected data cleared the intense dependence of the recycled TPA recovery on the catalyst concentration and the minimum time observed for 1.3 mol L-1 of KOH and 1.9 mol L-1 of NaOH, respectively.

Keywords

poli(tereftalan etylenu) ; promieniowanie mikrofalowe ; recykling chemiczny ; depolimeryzacja ; kwas tereftalowy poly(ethylene terephthalate) ; microwave radiation ; chemical recycling ; depolymerization ; terephthalic acid

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Nikje, M. M., & Nazari, F. (2022). Simple and convenient method in chemical recycling of poly(ethylene terephthalate) by using microwave radiation. Polimery, 54(9), 635–638. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/1241

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Remove 1. Paszun D., Spychaj T.: Ind. Eng. Chem. Res. 1997, 36, 1373.

2. US Pat. 5 254 666 (1993).

3. US Pat. 5 095 145 (1992).

4. US Pat. 3120561 (1964).

5. Yoshioka Y., Sato T., Okuwaki A.: J. Appl. Polym. Sci, 1994, 52,1353.

6. Campanelli J. R., Kamel M. R., Cooper D. G.: J. Appl Polym. Sci. 1993,48,443.

7. Alavi Nikje M. M., Nazari R, Imanieh H., Bagheri Garmarudi A., Haghshenas M.: J. Macromol. Sci. Pun 2007, 44, 753.

8. Guoxi X., Maixi L., Chen S.: Polym. Degrad. Stabil 2005,87,117.

9. Noritake A., Hori M., Shigematsu M., Tanahashi M.: PolymJ. 2008,40,498.

10. Abdelaal M. Y, Sobahi T. R., Makki M. S. L: J. Polym, Mater. 2008, 57, 73.

11. Torlakoglu A., Guclu G.: Waste Manag. 2007 DOI: 10.1016.

12. Hu L. C, Oku A., Yamada E., Tomari K.: Polym. ], 1997,29,708.

13. Oku A., Hu L. C., Yamada E.: J. Appl. Polym. Sci. 1997, 63,595.

14. Krzan A.: J. Appl. Polym. Sci. 1998, 69,1115.

15. Krzan A.: Polym. Adv. Technol. 1999,10, 603.

16. Liu L. X., Liu R. W., Zhang D., An L. X., Wang Y: Chem. J. Chin. Uni. 2005, 26, 2394.

17. Mori H., Nomura E., Hosoda A., Taniguchi H.: Reports of the Industrial Technology Center of Wakayama Prefecture 2005,23.

18. Chinese Pat. CN 1 401 688 (2003).

19. Krzan A.: Mat. Conf. "Zbornik Referatovs Posvetovanja", Maribor, Slovenia, 17 September 1998.

20. Gilmer J. W., DeMeuse M. T., Liu Y. J., Routzahn D. L., Applegate D. M.: Polym. Mat. Sci. Eng. 1994,71,531.

21. Liu L., Zhang D., An L., Zhang H., Tian Y: J. Appl Polym. Sci. 2005, 95, 719.

22. Jeziorska R.: Polimery 2005, 50,468.

23. Alavi Nikje M. M., Nazari E: Adv. Polym. Tech. 2006, 25 (No 5), 242.

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