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

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Abstract

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.

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References

  1. Welle F (2011) Twenty years of PET bottle to bottle recycling—an overview. Resour Conserv Recy 55:865–875. https://doi.org/10.1016/j.resconrec.2011.04.009

    Article  Google Scholar 

  2. Welle F (2014) Simulation of the decontamination efficiency of PET recycling processes based on solid-state polycondensation. Packag Technol Sci 27:141–148. https://doi.org/10.1002/pts.2013

    Article  CAS  Google Scholar 

  3. Issam AM, Hena S, Khizrien AKN (2012) A new unsaturated poly(ester-urethane) based on terephthalic acid derived from polyethylene terephthalate (PET) of waste bottles. J Polym Envirom 20:469–476. https://doi.org/10.1007/s10924-011-0407-0

    Article  CAS  Google Scholar 

  4. Ronkay F, Molnar B, Dogossy G (2017) The effect of mold temperature on chemical foaming of injection molded recycled polyethylene-terephthalate. Thermochim Acta 651:65–72. https://doi.org/10.1016/j.tca.2017.02.013

    Article  CAS  Google Scholar 

  5. Badia JD, Strömberg E, Karlsson S, Ribes-Greus A (2012) The role of crystalline, mobile amorphous rigid amorphous fractions in the performance of recycled poly (ethylene terephthalate) (PET). Polym Degrad Stabil 97:98–107. https://doi.org/10.1016/j.polymdegradstab.2011.10.008

    Article  CAS  Google Scholar 

  6. Kao CY, Cheng WH, Wan BZ (1998) Investigation of alkaline hydrolysis of polyethylene terephthalate by differential scanning calorimetry and thermogravimetric analysis. J Appl Polym Sci 70:1939–1945. https://doi.org/10.1002/(SICI)1097-4628(19981205)70:10%3C1939::AID-APP8%3E3.0.CO;2-G

    Article  CAS  Google Scholar 

  7. Paci M, Mantia FPL (1999) Influence of small amounts of polyvinylchloride on the recycling of polyethyleneterephthalate. Polym Degrad Stabil 63:11–14. https://doi.org/10.1016/S0141-3910(98)00053-6

    Article  CAS  Google Scholar 

  8. Assadi R, Colin X, Verdu J (2004) Irreversible structural changes during PET recycling by extrusion. Polymer 45:4403–4412. https://doi.org/10.1016/j.polymer.2004.04.029

    Article  CAS  Google Scholar 

  9. Zhao HB, Wang XL, Guan Y, Wang XL, Chen L, Wang YZ (2015) Block self-cross-linkable poly(ethylene terephthalate) copolyester via solid-state polymerization: crystallization, cross-linking, and flame retardance. Polymer 70:68–76. https://doi.org/10.1016/j.polymer.2015.06.012

    Article  CAS  Google Scholar 

  10. Karayannidis GP, Psalida EA (2000) Chain extension of recycled poly(ethylene terephthalate) with 2,2′-(1,4-phenylene)bis(2-oxazoline). J Appl Polym Sci 77:2206–2211. https://doi.org/10.1002/1097-4628(20000906)77:10%3C2206::AID-APP14%3E3.0.CO;2-D

    Article  CAS  Google Scholar 

  11. Raffa P, Coltelli MB, Savi S, Bianchi S, Castelvetro V (2012) Chain extension and branching of poly(ethylene terephthalate) (PET) with di-multifunctional epoxy or isocyanate additives: an experimental and modelling study. React Funct Polym 72:50–60. https://doi.org/10.1016/j.reactfunctpolym.2011.10.007

    Article  CAS  Google Scholar 

  12. Nascimento CR, Azuma C, Bretas R, Farah M, Dias ML (2010) Chain extension reaction in solid-state polymerization of recycled PET: the influence of 2,2′-bis-2-oxazoline and pyromellitic anhydride. J Appl Polym Sci 115:3177–3188. https://doi.org/10.1002/app.31400

    Article  CAS  Google Scholar 

  13. Rafler G, Reinisch G, Bonatz E, Versaumer H, Gajewski H, Sparing HD, Stein K, Mühlhaus C (1985) Kinetics of mass transfer in the melt polycondensation of poly(ethylene terephthalate). J Macromol Sci Chem 22:1413–1427. https://doi.org/10.1080/00222338508063344

    Article  Google Scholar 

  14. Cheong SI, Choi KY (1995) Melt polycondensation of poly(ethylene terephthalate) in a rotating disk reactor. J Appl Polym Sci 58:1473–1483. https://doi.org/10.1002/app.1995.070580908

    Article  CAS  Google Scholar 

  15. Zhong H, Xi Z, Liu T, Xu Z, Zhao L (2013) Integrated process of supercritical CO2-assisted melt polycondensation modification and foaming of poly(ethylene terephthalate). J Supercrit Fluids 74:70–79. https://doi.org/10.1016/j.supflu.2012.11.019

    Article  CAS  Google Scholar 

  16. Karayannidis GP, Kokkalas DE, Bikiaris DN (1993) Solid-state polycondensation of poly(ethylene terephthalate) recycled from postconsumer soft-drink bottles. I. J Appl Polym Sci 50:2135–2142. https://doi.org/10.1002/app.1993.070501213

    Article  CAS  Google Scholar 

  17. Zhao J, Xiao H, Qiu G, Zhang Y, Huang N, Tang Z (2005) Solid-state polycondensation of poly(ethylene terephthalate) modified with isophthalic acid: kinetics and simulation. Polymer 46:7309–7316. https://doi.org/10.1016/j.polymer.2005.05.090

    Article  CAS  Google Scholar 

  18. Zhi-Lian T, Gao Q, Nan-Xun H, Sironi C (1995) Solid-state polycondensation of poly(ethylene terephthalate): kinetics and mechanism. J Appl Polym Sci 57:473–485. https://doi.org/10.1002/app.1995.070570409

    Article  Google Scholar 

  19. Scheirs J, Long TA (2003) Modern polyesters: chemistry and technology of polyesters and copolyesters. Wiley, New Jersey. https://doi.org/10.1002/0470090685

    Book  Google Scholar 

  20. Mallon F, Beers K, Ives A, Ray H (1998) The effect of the type of purge gas on the solid-state polymerization of polyethylene terephthalate. J Appl Polym Sci 69:1789–1791. https://doi.org/10.1002/(SICI)1097-4628(19980829)69:9%3C1789::AID-APP13%3E3.0.CO;2-H

    Article  CAS  Google Scholar 

  21. Duh B (2006) Effects of crystallinity on solid-state polymerization of poly(ethylene terephthalate). J Appl Polym Sci 102:623–632. https://doi.org/10.1002/app.24406

    Article  CAS  Google Scholar 

  22. Wang XQ, Deng DC (2002) A comprehensive model for solid state polycondensation of poly(ethylene terephthalate): combining kinetics with crystallization and diffusion of acetaldehyde. J Appl Polym Sci 83:3133–3144. https://doi.org/10.1002/app.10113

    Article  CAS  Google Scholar 

  23. Bikiaris DN, Achillas DS, Giliopoulos DJ, Karayannidis GP (2006) Effect of activated carbon black nanoparticles on solid state polymerization of poly(ethylene terephthalate). Eur Polym J 42:3190–3201. https://doi.org/10.1016/j.eurpolymj.2006.07.027

    Article  CAS  Google Scholar 

  24. Yu H, Han K, Yu M (2004) The rate acceleration in solid state polycondensation of PET by nanomaterials. J Appl Polym Sci 94:971–976. https://doi.org/10.1002/app.20888

    Article  CAS  Google Scholar 

  25. Achilias DS, Karandrea E, Triantafyllidis KS, Ladavos A, Bikiaris DN (2015) Effect of organoclays type on the solid-state polymerization (SSP) of poly(ethylene terephthalate): experimental and modeling. Eur Polym J 63:156–167. https://doi.org/10.1016/j.eurpolymj.2014.12.027

    Article  CAS  Google Scholar 

  26. Duh B (2002) Effect of antimony catalyst on solid-state polycondensation of poly(ethylene terephthalate). Polymer 43:3147–3154. https://doi.org/10.1016/S0032-3861(02)00138-6

    Article  CAS  Google Scholar 

  27. Mendes LC, Pereira PSC (2013) Solid state polymerization: its action on thermal and rheological properties of PET/PC reactive blends. Polimeros 23:298–304. https://doi.org/10.1590/0104-1428.1518

    Article  CAS  Google Scholar 

  28. Dini M, Carreau PJ, Kamal MR, Ton-That M-T, Esmaeili B (2014) Solid-state polymerization of poly(ethylene terephthalate): effect of organoclay concentration. Polym Eng Sci 54:2925–2934. https://doi.org/10.1002/pen.23853

    Article  CAS  Google Scholar 

  29. Cruz SA, Zanin M (2006) PET recycling: evaluation of the solid state polymerization process. J Appl Polym Sci 99:2117–2123. https://doi.org/10.1002/app.22526

    Article  CAS  Google Scholar 

  30. Torres N, Robin JJ, Boutevin B (2000) Study of thermal and mechanical properties of virgin and recycled poly(ethylene terephthalate) before and after injection molding. Eur Polym J 36:2075–2080. https://doi.org/10.1016/S0014-3057(99)00301-8

    Article  CAS  Google Scholar 

  31. Karayannidis GP, Kokkalas DE, Bikiaris DN (1995) Solid-State polycondensation of poly(ethylene terephthalate) recycled from postconsumer soft-drink bottles. II. J Appl Polym Sci 56:405–410. https://doi.org/10.1002/app.1995.070560311

    Article  CAS  Google Scholar 

  32. Agrawal AK, Mhaisgawali VT (2006) Post-extrusion solid-state polymerization of fully drawn polyester yarns. J Appl Polym Sci 102:5113–5122. https://doi.org/10.1002/app.24436

    Article  CAS  Google Scholar 

  33. Wunderlich B (2003) Reversible crystallization and the rigid-amorphous phase in semicrystalline macromolecules. Prog Polym Sci 28:383–450. https://doi.org/10.1016/s0079-6700(02)00085-0

    Article  CAS  Google Scholar 

  34. Rastogi R, Vellinga WP, Rastogi S, Schick C, Meijer HEH (2004) The three-phase structure and mechanical properties of poly(ethylene terephthalate). J Polym Sci Polym Phys 42:2092–2106. https://doi.org/10.1002/polb.20096

    Article  CAS  Google Scholar 

  35. Molnar B, Ronkay F (2017) Time dependence of morphology and mechanical properties of injection moulded recycled poly(ethylene-terephthalate). Int Polym Process 32:203–208. https://doi.org/10.3139/217.3307

    Article  CAS  Google Scholar 

  36. Ehrenstein GW, Riedel G, Trawiel P (2004) Thermal analysis of plastics. Hanser Publisher, Munich. https://doi.org/10.3139/9783446434141

    Book  Google Scholar 

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Acknowledgements

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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  1. Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest, 1111, Hungary

    Bela Molnar & Ferenc Ronkay

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  1. Bela Molnar
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Correspondence to Ferenc Ronkay.

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Molnar, B., Ronkay, F. Effect of solid-state polycondensation on crystalline structure and mechanical properties of recycled polyethylene-terephthalate. Polym. Bull. 76, 2387–2398 (2019). https://doi.org/10.1007/s00289-018-2504-x

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