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Light-scattering characterization of polyblends in the presence of multiple-scattering conditions

Par Conseil national de recherches du Canada

DOITrouver le DOI : https://doi.org/10.1002/pen.760272106
AuteurRechercher : 1; Rechercher : 1; Rechercher : 1
Affiliation
  1. Conseil national de recherches du Canada
FormatTexte, Article
Résumé
A novel approach is described for the noncontact evaluation of structural morphology in polyblends by light scattering. Optical methods are attractive for the on‐line characterization of translucent materials because they are noninvasive, rapid, and applicable to high temperature materials. One limitation of conventional light‐scattering techniques is their requirement for relatively thin samples in order to avoid multiple‐scattering effects that smear out the details of the light diffraction pattern. The approach described in this paper is meant to circumvent this limitation by resorting to turbidimetric measurements, which provide useful information on the average size, shape, concentration, and orientation of the dispersed phase particles even in the presence of multiple scattering. The sample thickness is no longer restricted, and methods are described by which the near‐surface volume of infinitely thick parts may be inspected with access to a single side of the material. Results are presented for polypropylene‐polycarbonate (PP/PC) samples of different thicknesses and microstructural morphology, including fibrillar‐type oriented structures.
Date de publication
Maison d’éditionWiley / Society of Plastics Engineers
Dans
  • Polymer Engineering and Science 27, nº 21 : 1601–1610.
Langueanglais
Publications évaluées par des pairsOui
Numéro du CNRCCNRC 26747
NRC-IGM86-102-456
Exporter la noticeExporter en format RIS
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Identificateur de l’enregistrementea05f68e-c7b3-486f-943f-77a7eafa5566
Enregistrement créé2019-11-23
Enregistrement modifié2020-03-17
Date de modification :