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Microstructural orientation of isotactic polypropylene studied by computerized scanning eletron microscopy image analysis

By Giovanna Machado, Maria Augusta De Luca and Dimitrios Samios

Abstract

We evaluate the orientation of microstructural elements of isotatic polypropylene (i-PP) before and after deformation using computerized “Quantikov” software analysis of Scanning Electron Microscopy (SEM) images. We observed that before deformation through uniaxial compression, the polymeric material doesn’t exhibit any significant orientation. After deformation at 1349 MPa the material clearly showed preferential orientation that was attested by the orientation axis seen between two petals of the rose of the number of intercepts. This effect was more pronounced after deformation at 2699 MPa

Topics: Polipropileno isotático : Deformação, Microscopy, Polypropylene, Microscopia eletronica, Orientation
Year: 2010
OAI identifier: oai:agregador.ibict.br.PC_UFRGS:oai:www.lume.ufrgs.br:10183/19402
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