Polymer Bulletin

, Volume 76, Issue 5, pp 2387–2398 | Cite as

Effect of solid-state polycondensation on crystalline structure and mechanical properties of recycled polyethylene-terephthalate

  • Bela Molnar
  • Ferenc RonkayEmail author
Original Paper


Solid-state polycondensation process of recycled polyethylene-terephthalate and its effect on crystalline structure and mechanical properties were investigated. A three-phase morphological model was applied for the evaluation of crystalline structure, while mechanical properties were determined by dynamic mechanical analysis. The effect of solid-state polycondensation process on morphology was investigated and described in detail. A new method was used to analyze the effect of solid-state polycondensation process on mechanical properties. Relationship was found between evolved crystalline structure and storage modulus of samples.


Recycled polyethylene-terephthalate Solid-state polycondensation Morphology Mechanical properties 



This research was realized in the frames of TÁMOP 4.2.4. A/1-11-1-2012-0001: “National Excellence Program—Elaborating and operating an inland student and researcher personal support system.” The project was subsidized by the European Union and co-financed by the European Social Fund. The infrastructure of the research project was supported by the Hungarian Scientific Research Fund (OTKA K109224).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Polymer Engineering, Faculty of Mechanical EngineeringBudapest University of Technology and EconomicsBudapestHungary

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