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

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

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Título Microstructural orientation of isotactic polypropylene studied by computerized scanning eletron microscopy image analysis
Autor Machado, Giovanna
De Luca, Maria Augusta
Samios, Dimitrios
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.
Contido em Materials research : ibero-american journal of materials. São Carlos, SP. Vol. 4, n. 2 (2001), p. 103-106
Assunto Microscopia eletronica
Polipropileno isotático : Deformação
[en] Microscopy
[en] Orientation
[en] Polypropylene
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/19402
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