Reactive extrusion of recycled poly(ethylene terephthalate) with polycarbonate by addition of chain extender

Xianwen Tang; Weihong Guo; Guorong Yin; Binyao Li; Chifei Wu

doi:10.1002/app.24410

journal article Feb 27, 2007

Reactive extrusion of recycled poly(ethylene terephthalate) with polycarbonate by addition of chain extender

Xianwen Tang Weihong Guo

Guorong Yin Binyao Li Chifei Wu

Journal of Applied Polymer Science Vol. 104 No. 4 pp. 2602-2607 · Wiley

View at Publisher Save 10.1002/app.24410

Abstract

AbstractPoly(ethylene terephthalate) (PET) resin is one of the most widely used engineering plastic with high performance, but the poor impact strength limits its applications for the notch sensitivity. In this research, toughened PET alloy was prepared by blending recycled PET with polycarbonate (PC) and MDI (methylenediphenyl diisocyanate). Intrinsic viscosity and melt viscosity measurements proved increase of the molecular weights of PET via chain‐extending reaction. FTIR and DMA results proved that some PET–PC copolymers were produced and the compatibility of PET phase and PC phase was improved. In addition, the reaction induced by MDI also affected the crystallization behaviors of PET, as observed from DSC results, and the crytallinity of PET decreased with the increase of MDI content. For all of these effects of MDI of increasing of molecular weight, improving of compatibility, and limiting the crystallization behaviors of PET/PC alloy, the notched‐impact strength was greatly improved from 17.3 to 70.5 kJ/m2. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 2602–2607, 2007

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Metrics

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References

Details

Published: Feb 27, 2007
Vol/Issue: 104(4)
Pages: 2602-2607
License: View

Authors

Department of Industrial and Systems Engineering, Rutgers University, New Brunswick, NJ, USA

Cite This Article

Xianwen Tang, Weihong Guo, Guorong Yin, et al. (2007). Reactive extrusion of recycled poly(ethylene terephthalate) with polycarbonate by addition of chain extender. Journal of Applied Polymer Science, 104(4), 2602-2607. https://doi.org/10.1002/app.24410

Reactive extrusion of recycled poly(ethylene terephthalate) with polycarbonate by addition of chain extender

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