Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods
Recycling of poly(ethylene terephthalate) (PET) is of crucial importance, since worldwide amounts of PETwaste increase rapidly due to its widespread applications. Hence, several methods have been developed, like energetic, material, thermo-mechanical and chemical recycling of PET. Most frequently, P...
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| Format: | Article |
| Language: | English |
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Budapest University of Technology and Economics
2016-07-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0006898&mi=cd |
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| author | B. Geyer G. Lorenz A. Kandelbauer |
| author_facet | B. Geyer G. Lorenz A. Kandelbauer |
| author_sort | B. Geyer |
| collection | DOAJ |
| description | Recycling of poly(ethylene terephthalate) (PET) is of crucial importance, since worldwide amounts of PETwaste increase rapidly due to its widespread applications. Hence, several methods have been developed, like energetic, material, thermo-mechanical and chemical recycling of PET. Most frequently, PET-waste is incinerated for energy recovery, used as additive in concrete composites or glycolysed to yield mixtures of monomers and undefined oligomers. While energetic and thermo-mechanical recycling entail downcycling of the material, chemical recycling requires considerable amounts of chemicals and demanding processing steps entailing toxic and ecological issues. This review provides a thorough survey of PET-recycling including energetic, material, thermo-mechanical and chemical methods. It focuses on chemical methods describing important reaction parameters and yields of obtained reaction products. While most methods yield monomers, only a few yield undefined low molecular weight oligomers for impaired applications (dispersants or plasticizers). Further, the present work presents an alternative chemical recycling method of PET in comparison to existing chemical methods. |
| format | Article |
| id | doaj-art-075f19f6cf4642f8aa32d0130b887227 |
| institution | Kabale University |
| issn | 1788-618X |
| language | English |
| publishDate | 2016-07-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-075f19f6cf4642f8aa32d0130b8872272025-08-20T03:33:14ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2016-07-0110755958610.3144/expresspolymlett.2016.53Recycling of poly(ethylene terephthalate) – A review focusing on chemical methodsB. GeyerG. LorenzA. KandelbauerRecycling of poly(ethylene terephthalate) (PET) is of crucial importance, since worldwide amounts of PETwaste increase rapidly due to its widespread applications. Hence, several methods have been developed, like energetic, material, thermo-mechanical and chemical recycling of PET. Most frequently, PET-waste is incinerated for energy recovery, used as additive in concrete composites or glycolysed to yield mixtures of monomers and undefined oligomers. While energetic and thermo-mechanical recycling entail downcycling of the material, chemical recycling requires considerable amounts of chemicals and demanding processing steps entailing toxic and ecological issues. This review provides a thorough survey of PET-recycling including energetic, material, thermo-mechanical and chemical methods. It focuses on chemical methods describing important reaction parameters and yields of obtained reaction products. While most methods yield monomers, only a few yield undefined low molecular weight oligomers for impaired applications (dispersants or plasticizers). Further, the present work presents an alternative chemical recycling method of PET in comparison to existing chemical methods.http://www.expresspolymlett.com/letolt.php?file=EPL-0006898&mi=cdRecyclingPoly(ethylene terephthalate)DegradationMonomersOligomers |
| spellingShingle | B. Geyer G. Lorenz A. Kandelbauer Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods eXPRESS Polymer Letters Recycling Poly(ethylene terephthalate) Degradation Monomers Oligomers |
| title | Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods |
| title_full | Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods |
| title_fullStr | Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods |
| title_full_unstemmed | Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods |
| title_short | Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods |
| title_sort | recycling of poly ethylene terephthalate a review focusing on chemical methods |
| topic | Recycling Poly(ethylene terephthalate) Degradation Monomers Oligomers |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0006898&mi=cd |
| work_keys_str_mv | AT bgeyer recyclingofpolyethyleneterephthalateareviewfocusingonchemicalmethods AT glorenz recyclingofpolyethyleneterephthalateareviewfocusingonchemicalmethods AT akandelbauer recyclingofpolyethyleneterephthalateareviewfocusingonchemicalmethods |