Analysis of the flow behavior of HDPE/LDPE blends using a kinetic network model

✍ Scribed by O. Manero; C. Rangel-Nafaile; A. García-Rejón

• Publisher: John Wiley and Sons
• Year: 1987
• Tongue: English
• Weight: 588 KB
• Volume: 33
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1987.070330617

✦ Synopsis

Theoretical predictions of the flow behavior of high and low-density polyethylene polymer blends have been obtained using the kinetic network model proposed by W i l l i a m s et al. The results show that this model can be used even in the case of polydisperse components having similar relaxation spectra. Furthermore, in order to obtain meaningful predictions, the characterization of the complete system (blends and pure components) should be carried out on samples with the same thennomechanical history. Experimental data show that the shearing history influences the rheological properties of the pure homopolymers to a measurable and significant degree and that it has to be taken into account when these properties are used to predict the flow behavior of their blends.