Abstract
Differential scanning calorimetry has been used to study the heat flow during melting and crystallisation of a range of polypropylene post-consumer waste (PP PCW) grades and blends. The heat flow curves and the heat capacity curves indicated that the PP PCW grades and blends contained contaminants even after manual sorting and a cleaning process. The enthalpies of the PP PCW grades were lower than that for the virgin grades, as a result of degradation. Small amounts of polymeric contaminants (up to 10%) did not affect the enthalpies of PP PCW although other contaminants may have had some effect. The enthalpies of the PCW blends could in general be predicted by a linear additive rule, which is of importance for recycling a variety of PP PCW products.
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References
A. Valenza and F. P. La Mantia, Polym. Degrad. Stab., 20 (1988) 63.
M. S. Rabello and J. R. White, Polymer, 38 (1997) 6389.
A. R. Horrocks and S. Ghosh, Proc. R’95 Int. Cong. on Recovery, Recycling, Re-integration, Geneva, Switzerland, 1–3 February, III. (1995) 31.
M. Avella, R. dell’Erba, L. D’Orazio and E. Martuscelli, Polym. Networks Blends, 5 (1995) 47.
D. D. Duca and E. P. Moore, in Polypropylene Handbook, E. P. Moore, Jr. (Ed.), Hanser/Gardner Publications Inc., Cincinnati, 1996, p. 237.
M. Gahleitner, J. Wolfschwenger, C. Bachner, K. Bernreitner and W. Neibl, J.Appl.Polym.Sci., 61 (1996) 649.
J. Verga, I. Mudra and G.W. Ehrenstein, ANTEC, (1998) 3492.
B. Osowiecha, A. Bukowski, J. Zielinski, W. Ciesinska and T. Zielinski, J. Therm. Anal. Cal., 74 (2003) 673.
M. Mucha and Z. Krolikowski, J. Therm. Anal. Cal., 74 (2003) 549.
T. Sterzynski, P. Calo, M. Lambla and M. Thomas, Polym. Eng. Sci., 37 (1997) 1917.
Y. Mubarak, E. Harkin-Jones, P. Martin and M. Ahmad, ANTEC (1999) 3796.
J. Majumdar, Ph. D. Thesis, RMIT University, Melbourne, Australia 2002, Ch. 3.
I. Baquero, N. Moreno, M. Ichazo and M. A. Sabino, ANTEC, (2002) 00731.pdf.
F. Cser and R. A. Shanks, J. Therm. Anal. Cal., 54 (1998) 637.
F. Cser, F. Rasoul and E. Kosior, J. Thermal Anal., 50 (1997) 727.
J. Majumdar, M. C. Jollands, F. Cser and R. A. Shanks, Proc. Conf. 25th Australian Polymer Symp., Feb. 2002, Armidale, NSW, Polymer Division, Royal Australian Chemical Institute, Australia 2002, C11/1.
T. Kelen, Polymer Degradation, Van Nostrand Reinhold Company Inc., New York 1983, Ch. 6.
Z. Zamorsky and J. Muras, Polym. Degrad. Stab., 14 (1986) 41.
T. E. Davies, R. L. Tobias and E. B. Peterli, J. Polym. Sci., 56 (1962) 485.
E. Seiler, in Recycling and Recovery of Plastics, J. Brandrup, M. Bittner, W. Michaeli and G. Menges (Eds), Hanser/Gardner Pub. Inc., Cincinnati 1996, p. 599.
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The authors would like to thank Dr. M. Killen (Basell Australia Pty. Ltd.), Mr. P. Slaven (Citiwide MRF), Dasma Valley Waste Prop. Ltd. and Mr. I. Janetzki (Huhtamaki Australia Ltd.) for supplying materials for this project. Financial support for the project was provided by Basell Australia and Ecorecycle Victoria, Australia.
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Majumdar, J., Cser, F., Jollands, M.C. et al. Thermal properties of polypropylene post-consumer waste (PP PCW). J Therm Anal Calorim 78, 849–863 (2004). https://doi.org/10.1007/s10973-005-0453-0
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DOI: https://doi.org/10.1007/s10973-005-0453-0