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Influence of the CaCO3 nanoparticles on the molecular orientation of the polypropylene matrix

✍ Scribed by D. García-López; J. C. Merino; J. M. Pastor

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
192 KB
Volume
88
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

The presence of aggregates of CaCO~3~ nanoparticles in an isotactic polypropylene matrix processed by extrusion promotes the apparition of residual stresses. These stresses are removed with a thermal treatment of the composite, but a higher molecular orientation is then produced. The chain orientation inside the sample is nonhomogeneous due to the presence of the aggregates of nanoparticles. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 88: 947–952, 2003

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