Reprocessed polylactide

Studies of thermo-oxidative decomposition

J. D. Badia, L. Santonja-Blasco, A Martinez-Felipe, A. Ribes-Greus

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The combustion process of virgin and reprocessed polylactide (PLA) was simulated by multi-rate linear non-isothermal thermogravimetric experiments under O2. A complete methodology that accounted on the thermal stability and emission of gases was thoroughly developed. A new model, Thermal Decomposition Behavior, and novel parameters, the Zero-Decomposition Temperatures, were used to test the thermal stability of the materials under any linear heating rate. The release of gases was monitored by Evolved Gas Analysis with in-line FT-IR analysis. In addition, a kinetic analysis methodology that accounted for variable activation parameters showed that the decomposition process could be driven by the formation of bubbles in the melt. It was found that the combustion technologies for virgin PLA could be transferred for the energetic valorization of its recyclates. Combustion was pointed out as appropriate for the energetic valorization of PLA submitted to more than three successive reprocessing cycles.
Original languageEnglish
Pages (from-to)622–628
Number of pages7
JournalBioresource Technology
Volume114
Early online date5 Mar 2012
DOIs
Publication statusPublished - Jun 2012

Fingerprint

combustion
decomposition
Decomposition
Thermodynamic stability
energetics
Gases
gas
Gas fuel analysis
methodology
thermal decomposition
Heating rate
bubble
Pyrolysis
Chemical activation
melt
heating
kinetics
Kinetics
analysis
poly(lactide)

Keywords

  • energetic valorization
  • Polylactide (PLA)
  • thermal stability
  • Thermo-oxidative decomposition kinetics
  • evolved-gases analysis (EGA)

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Environmental Science(all)

Cite this

Reprocessed polylactide : Studies of thermo-oxidative decomposition. / Badia, J. D.; Santonja-Blasco, L.; Martinez-Felipe, A; Ribes-Greus, A.

In: Bioresource Technology, Vol. 114, 06.2012, p. 622–628.

Research output: Contribution to journalArticle

Badia, J. D. ; Santonja-Blasco, L. ; Martinez-Felipe, A ; Ribes-Greus, A. / Reprocessed polylactide : Studies of thermo-oxidative decomposition. In: Bioresource Technology. 2012 ; Vol. 114. pp. 622–628.
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abstract = "The combustion process of virgin and reprocessed polylactide (PLA) was simulated by multi-rate linear non-isothermal thermogravimetric experiments under O2. A complete methodology that accounted on the thermal stability and emission of gases was thoroughly developed. A new model, Thermal Decomposition Behavior, and novel parameters, the Zero-Decomposition Temperatures, were used to test the thermal stability of the materials under any linear heating rate. The release of gases was monitored by Evolved Gas Analysis with in-line FT-IR analysis. In addition, a kinetic analysis methodology that accounted for variable activation parameters showed that the decomposition process could be driven by the formation of bubbles in the melt. It was found that the combustion technologies for virgin PLA could be transferred for the energetic valorization of its recyclates. Combustion was pointed out as appropriate for the energetic valorization of PLA submitted to more than three successive reprocessing cycles.",
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author = "Badia, {J. D.} and L. Santonja-Blasco and A Martinez-Felipe and A. Ribes-Greus",
note = "The authors would like to acknowledge the Spanish Ministry of Science and Innovation for the financial support through the Research Projects ENE2007-67584-C03, UPOVCE-3E-013, ENE2011-28735-C02-01, IT-2009-0074, as well as for the pre-doctoral research position for L. Santonja-Blasco through the FPI program. The Spanish Ministry for Education is acknowledged for the concession of a pre-doctoral research position to J.D. Badia and A. Martinez-Felipe by means of the FPU program. The authors thank the financial support of the Generalitat Valenciana through the ACOMP/2011/189, the Grisolia research position for A. Mart{\'i}nez-Felipe, and for the Forteza technician position. Universitat Polit{\`e}cnica de Val{\`e}ncia (UPV, Spain) is thanked for additional support through the PAID 05-09-4331 and PAID 06-11-2037 projects. AIMPLAS (Technological Institute of Plastic) is acknowledged for providing and processing the material.",
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N1 - The authors would like to acknowledge the Spanish Ministry of Science and Innovation for the financial support through the Research Projects ENE2007-67584-C03, UPOVCE-3E-013, ENE2011-28735-C02-01, IT-2009-0074, as well as for the pre-doctoral research position for L. Santonja-Blasco through the FPI program. The Spanish Ministry for Education is acknowledged for the concession of a pre-doctoral research position to J.D. Badia and A. Martinez-Felipe by means of the FPU program. The authors thank the financial support of the Generalitat Valenciana through the ACOMP/2011/189, the Grisolia research position for A. Martínez-Felipe, and for the Forteza technician position. Universitat Politècnica de València (UPV, Spain) is thanked for additional support through the PAID 05-09-4331 and PAID 06-11-2037 projects. AIMPLAS (Technological Institute of Plastic) is acknowledged for providing and processing the material.

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N2 - The combustion process of virgin and reprocessed polylactide (PLA) was simulated by multi-rate linear non-isothermal thermogravimetric experiments under O2. A complete methodology that accounted on the thermal stability and emission of gases was thoroughly developed. A new model, Thermal Decomposition Behavior, and novel parameters, the Zero-Decomposition Temperatures, were used to test the thermal stability of the materials under any linear heating rate. The release of gases was monitored by Evolved Gas Analysis with in-line FT-IR analysis. In addition, a kinetic analysis methodology that accounted for variable activation parameters showed that the decomposition process could be driven by the formation of bubbles in the melt. It was found that the combustion technologies for virgin PLA could be transferred for the energetic valorization of its recyclates. Combustion was pointed out as appropriate for the energetic valorization of PLA submitted to more than three successive reprocessing cycles.

AB - The combustion process of virgin and reprocessed polylactide (PLA) was simulated by multi-rate linear non-isothermal thermogravimetric experiments under O2. A complete methodology that accounted on the thermal stability and emission of gases was thoroughly developed. A new model, Thermal Decomposition Behavior, and novel parameters, the Zero-Decomposition Temperatures, were used to test the thermal stability of the materials under any linear heating rate. The release of gases was monitored by Evolved Gas Analysis with in-line FT-IR analysis. In addition, a kinetic analysis methodology that accounted for variable activation parameters showed that the decomposition process could be driven by the formation of bubbles in the melt. It was found that the combustion technologies for virgin PLA could be transferred for the energetic valorization of its recyclates. Combustion was pointed out as appropriate for the energetic valorization of PLA submitted to more than three successive reprocessing cycles.

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