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Melt rheological properties of polypropylene–maleated polypropylene blends. I. Steady flow by capillary

✍ Scribed by Shucai Li; Pentti K. Järvelä; Pirkko A. Järvelä

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
220 KB
Volume
71
Category
Article
ISSN
0021-8995

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✦ Synopsis

Melt rheological properties of blends of polypropylene (PP) and PP grafted with maleic anhydride (PP-g-MA) are studied using a capillary rheometer. A pseudoplastic flow behavior is observed. The pseudoplasticity of the melt reduces with an increase of PP-g-MA content and/or temperature. The PP-g-MA component in the blend acts as decreasing melt viscosity, especially in the lower shear rate region, while the addition of PP-g-MA to PP does not cause obvious increase of die swell ratio.

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