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Influence of composition on the linear viscoelastic behavior and morphology of PP/HDPE blends

SOUZA, A. M. C ; DEMARQUETTE, N. R

Polymer (Guilford), 2002-02, Vol.43 (4), p.1313-1321 [Periódico revisado por pares]

Oxford: Elsevier

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  • Título:
    Influence of composition on the linear viscoelastic behavior and morphology of PP/HDPE blends
  • Autor: SOUZA, A. M. C ; DEMARQUETTE, N. R
  • Assuntos: Applied sciences ; Exact sciences and technology ; Organic polymers ; Physicochemistry of polymers ; Properties and characterization ; Rheology and viscoelasticity
  • É parte de: Polymer (Guilford), 2002-02, Vol.43 (4), p.1313-1321
  • Notas: ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-1
    content type line 23
  • Descrição: In this paper the influence of temperature and composition on the dynamic behavior and morphology of polypropylene (PP)/high-density polyethylene (HDPE) blends were studied. The blend composition ranged from 5 to 30 wt% of dispersed phase (HDPE) and the temperatures ranged from 180 to 220 deg C. The interfacial tension between PP and HDPE at temperatures of 180, 200 and 220 deg C was obtained from fitting Palierne's emulsion model to the experimental data of PP/HDPE blends with different compositions and from the weighted relaxation spectra of PP/HDPE blends with different compositions, following Gramespacher and Meissner analysis. The interfacial tension between PP and HDPE as inferred from the rheological measurements was shown to depend on PP/HDPE blend composition. However, the results indicated that there is a range of PP/HDPE blend composition for which interfacial tension between PP and HDPE is constant. Considering these values, it was shown that interfacial tension between PP and HDPE decreases linearly with increasing temperature.
  • Editor: Oxford: Elsevier
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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