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Application of new oligomeric plasticizers based on waste poly(ethylene terephthalate) for poly(vinyl chloride) compositions

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Abstract

In this study, chemical recycling products of waste poly(ethylene terephthalate) with oligoesters were used as new plasticizers for poly(vinyl chloride) (PVC). The preparation conditions of the dry blend mixtures of the suspension PVC containing synthesised plasticizers were similar to the conditions of the preparing mixtures with commercial plasticizers. The plasticization efficiency of PVC plasticizers was then examined by analysis of the mechanical, physical and chemical properties, as well as the thermal resistance and migration of plasticizer molecules from polymer matrix. Test results proved that compositions with synthesised oligomeric plasticizers possessed similar or better properties than those containing commercial oligomeric plasticizers and much better properties than those having monomeric plasticizers. Thermal stabilities of the proposed plasticizers were higher than those of the commercial plasticizers either monomeric (bis(2-ethylhexyl)phthalate) or oligomeric, despite the fact that the synthesised oligoesters did not contain any antioxidant. The best properties, especially low volatility, very good mechanical properties, low migration were resulted of the transesterification of the waste PET with oligoesters based on adipic acid, triethylene glycol and 2-ethylhexanol which were selected as plasticizers synthesised on the technical scale. The tested plasticized PVC compositions possessed very good tear resistance, tensile strength, decrease of weight loss after 168 h at 80 °C and low migration. Processing properties of PVC compositions containing these synthesised plasticizers confirmed their effectiveness in these compositions for extrusion process.

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Authors and Affiliations

  1. Institute for Engineering of Polymer Materials and Dyes, ul. M. Skłodowskiej-Curie 55, 87-100, Toruń, Poland

    Ewa Langer, Krzysztof Bortel, Marta Lenartowicz-Klik & Sebastian Jurczyk

  2. Faculty of Chemistry, Silesian University of Technology, ul. Strzody 9, 44-100, Gliwice, Poland

    Sylwia Waśkiewicz

Authors
  1. Ewa Langer
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  2. Sylwia Waśkiewicz
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  3. Krzysztof Bortel
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  4. Marta Lenartowicz-Klik
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  5. Sebastian Jurczyk
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Correspondence to Ewa Langer.

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Langer, E., Waśkiewicz, S., Bortel, K. et al. Application of new oligomeric plasticizers based on waste poly(ethylene terephthalate) for poly(vinyl chloride) compositions. Iran Polym J 26, 115–123 (2017). https://doi.org/10.1007/s13726-016-0502-0

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  • DOI: https://doi.org/10.1007/s13726-016-0502-0

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