Research on pyrolysis properties of waste plastic films

Young Min Kim, Boram Lee, Tae Uk Han, Seungdo Kim, Tae U. Yu, Byoung Yeol Bang, Joug Su Kim, Young Kwon Park

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Pyrolysis characteristics of waste plastic films were investigated by using a thermogravimetric analysis and pyrolyzer-gas chromatography/ mass spectrometry. Thermogravimetric analysis results revealed that the pyrolysis of waste plastic films can be divided into two distinct reactions; (1) the decomposition reaction of starch at between 200 and 370 °C and (2) that of other plastic polymers such as PS, PP, PE at between 370 and 510 °C. The kinetic analysis results obtained by using the revised Ozawa method indicated that the apparent activation energy of the pyrolysis reaction of waste plastic films was also changed dramatically according to the different decomposition reactions of two major waste plastic film components. Py-GC/MS results also revealed that the typical pyrolyzates of each polymer in waste plastic films were levoglucosan (starch), terephthalic acid (PET), styrene monomer, dimer, and trimer (PS), methylated alkenes (PP), and triplet peaks (PE) composed of alkadiene/alkene/alkane. The phthalate, used as a polymer additive, was also detected on the pyrogram of waste plastic films mixture.

Original languageEnglish
Pages (from-to)23-28
Number of pages6
JournalApplied Chemistry for Engineering
Issue number1
StatePublished - Feb 2017


  • Bioplastics
  • Kinetic analysis
  • Py-GC/MS
  • Starch
  • Waste plastic films


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