Influence of the CaCO 3  nanoparticles on the molecular orientation of the polypropylene matrix | Zendy

GarcíaLópez D. | Zendy; Merino J. C. | Zendy; Pastor J. M. | Zendy

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Influence of the CaCO 3 nanoparticles on the molecular orientation of the polypropylene matrix

Author(s) -

GarcíaLópez D.,

Merino J. C.,

Pastor J. M.

Publication year - 2003

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.12030

Subject(s) - polypropylene , tacticity , materials science , nanoparticle , extrusion , composite material , composite number , matrix (chemical analysis) , orientation (vector space) , polymer , chemical engineering , polymer chemistry , nanotechnology , polymerization , geometry , mathematics , engineering

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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