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

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

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...

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Veröffentlicht in:Journal of applied polymer science 1999-03, Vol.71 (10), p.1641-1648
Hauptverfasser: Li, Shucai, Järvelä, Pentti K., Järvelä, Pirkko A.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
blend
Exact sciences and technology
melt rheology
Physical properties
Polymer industry, paints, wood
polypropylene
polypropylene grafted with maleic anhydride
Properties and testing
Rheological properties
Technology of polymers
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Zusammenfassung: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. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 71: 1641–1648, 1999
ISSN:0021-8995
1097-4628
DOI:10.1002/(SICI)1097-4628(19990307)71:10<1641::AID-APP11>3.0.CO;2-A