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Comparative study on the lamellar structure of polyethylene foams |
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| Authors: | O. Almanza,M.A. Rodrí guez-Pé rez,B. Chernev,P. Zipper |
| Affiliation: | a Departamento de Física, Universidad Nacional de Colombia, Bogotá, Colombia b Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain c Physikalische Chemie, Institut für Chemie, Universität Graz, 8010 Graz, Austria |
| Abstract: | A comparative study on the lamellar morphology of a collection of polyethylene foam (LDPE) has been performed in order to obtain a better understanding of the morphology of the crystalline phase of these materials. The lamellar structure was measured by small-angle X-ray scattering (SAXS), differential scanning calorimetric (DSC) and Raman spectroscopy. The results have shown that the lamellar structure of the foams is different to that of a LDPE solid sheet. Moreover, the different sensitivity of the three experimental techniques to the lamellar structure has also been analyzed. |
| Keywords: | Small-angle X-ray scattering Polyolefin foams Lamellar thickness Raman DSC |
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