Recycling of Flexible Polyurethane Foam by Split-Phase Alcoholysis: Identification of Additives and Alcoholyzing Agents to Reach Higher Efficiencies.
alcoholysis
foam
hydrolysis
polyurethane
split-phase
Journal
ChemSusChem
ISSN: 1864-564X
Titre abrégé: ChemSusChem
Pays: Germany
ID NLM: 101319536
Informations de publication
Date de publication:
07 Aug 2020
07 Aug 2020
Historique:
received:
12
04
2020
medline:
30
5
2020
pubmed:
30
5
2020
entrez:
30
5
2020
Statut:
ppublish
Résumé
Split-phase alcoholysis of flexible polyurethane (PU) foam yields an apolar phase containing the recycled polyether polyol, and a lower, polar phase of the alcoholyzing agent and aromatic compounds. However, multiple purification steps are required to render the polyether polyol suitable for synthesis of new flexible PU foams; the unfavorable mass balance limits industrial applications. In this work, 2-pyrrolidone was identified as a performant additive for accelerating the dissolution and depolymerization process. By applying a lactam to PU foam in a weight ratio of 0.1:1, the glycol to PU foam weight ratio can be decreased from 1.5:1 to only 0.5:1, without loss of purity or yield of the recycled polyether polyol. Diglycerol was discovered as a novel, promising alcoholyzing agent; it allows the recycling of the polyether polyol in high purity (97 %) and excellent yields (98 %), and after a single washing with diglycerol, a sufficiently low hydroxyl value (61 mg
Identifiants
pubmed: 32469159
doi: 10.1002/cssc.202000949
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
3835-3843Subventions
Organisme : Vlaamse regering
ID : Methusalem grant CASAS
Organisme : Agentschap voor Innovatie door Wetenschap en Technologie
ID : IWT 150107
Organisme : KU Leuven
ID : METH/14/04
Informations de copyright
© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Références
J. O. Akindoyo, M. D. H. Beg, S. Ghazali, M. R. Islam, N. Jeyaratnama, A. R. Yuvarajc, RSC Adv. 2016, 6, 114453-114482.
W. Yang, Q. Dong, S. Liu, H. Xie, L. Liu, J. Li, Procedia Environ. Sci. 2012, 16, 167-175.
L. R. Mahoney, S. A. Weiner, F. C. Ferris, Environ. Sci. Technol. 1974, 8, 135-139;
J. Gerlock, J. Braslaw, L. R. Mahoney, F. C. Ferris, J. Polym. Sci. Polym. Chem. Ed. 1980, 18, 541-557;
J. Gerlock, J. Braslaw, M. Zinbo, Ind. Eng. Chem. Process Des. Dev. 1984, 23, 545-552;
O. Kondo, T. Hashimoto, H. Hasegawa (Bridgestone Tire Co.), US4014809A, 1977;
W. McElroy (Mobay Chemical Corp.), US3117940A, 1964;
M. Sheratte, US4162995A, 1979;
H. Watando, S. Saya, T. Fukaya, S. Fujieda, M. Yamamoto, Polym. Degrad. Stab. 2006, 91, 3354-3359;
G. Behrendt, B. W. Naber, J. Univ. Chem. Technol. Metall. 2009, 44, 3-23;
D. Simón, A. M. Borreguero, A. de Lucas, J. F. Rodríguez, Waste Manage. 2018, 76, 147-171;
D. Simón, J. F. Rodríguez, M. Carmona, A. Serrano, A. M. Borreguero, Chem. Eng. J. 2018, 350, 300-311;
J. Datta, P. Kopczyńska, D. Simón, J. F. Rodríguez, J. Polym. Environ. 2018, 26, 166-174;
J. Maioli, J. V. Soares, F. Uliana, T. Valim, C. Francisco, E. Silva Filho, V. Junior, A. Neto, Orbital Electron. J. Chem. 2019, 11, 33-41.
G. Parinello, D. Thorpe, G. Verhelst, J. F. G. Hopper, M. B. A De Witte (ICI Plc.), US5691389A, 1997;
C. Molero, A. de Lucas, J. F. Rodríguez, Polym. Degrad. Stab. 2006, 91, 894-901;
D. Simón, A. de Lucas, J. F. Rodríguez, A. M. Borreguero, Polym. Degrad. Stab. 2016, 133, 119-130.
K. M. Zia, H. N. Bhatti, I. A. Bhatti, React. Funct. Polym. 2007, 67, 675-692.
M. Modesti, F. Simioni, R. Munari, N. Baldoin, React. Funct. Polym. 1995, 26, 157-165.
D. Simón, A. M. Borreguero, A. De Lucas, J. F. Rodríguez, Polym. Degrad. Stab. 2015, 121, 126-136;
P. Jutrzenka Trzebiatowska, A. Dzierbicka, N. Kamińska, J. Datta, Polym. Int. 2018, 67, 1368-1377;
P. Jutrzenka Trzebiatowska, H. Beneš, J. Datta, React. Funct. Polym. 2019, 139, 25-33.
M. M. Alavi Nikje, M. Nikrah, M. Haghshenas, Polym. Bull. 2007, 59, 91-104;
M. M. Alavi Nikje, M. Nikrah, Polym. Bull. 2007, 58, 411-423.
G. Schneider, K. Wagner, H. W. Patzelt (Bayer AG), US4115298A, 1978;
K. Wagner, M. Dahm (Bayer AG), US4013625A, 1977.
D. Simón, A. De Lucas, J. F. Rodríguez, A. M. Borreguero, J. Appl. Polym. Sci. 2017, 134, 45087.
B. Jousseaume, C. Laporte, T. Toupance, J.-M. Bernard, Tetrahedron Lett. 2002, 43, 6305-6307.
A. Garofalo, L. Goossens, P. Six, N. Lebegue, P. Depreux, Synth. Commun. 2011, 41, 2007-2016;
E. Reixach, N. Bonet, F. X. Rius-ruiz, S. Wershofen, A. Vidal-Ferran, Ind. Eng. Chem. Res. 2010, 49, 6362-6366.
B. García, S. Aparicio, R. Alcalde, R. Ruiz, M. J. Dávila, J. M. Leal, J. Phys. Chem. B 2004, 108, 3024-3029.
Ullmann's Polymers and Plastics: Products and Processes, Vol. 3, Wiley-VCH, Weinheim, 2016, p. 1084.
C. Carré, H. Zoccheddu, S. Delalande, P. Pichon, L. Avérous, Eur. Polym. J. 2016, 84, 759-769.