Volume 89, Issue 8 pp. 2046-2050

Microhardness of ternary blends of polyolefins with recycled polymer components

K. Berdjane

K. Berdjane

Faculté des Sciences de l'ingénieur, Département de Génie des Procédés, Université Ferhat Abbas de Sétif, Sétif 19000, Algérie

Search for more papers by this author
Z. Berdjane

Z. Berdjane

Instituto de Estructura de la Materia, CSIC, Serrano 119, 28006 Madrid, Spain

Search for more papers by this author
D.R. Rueda

D.R. Rueda

Instituto de Estructura de la Materia, CSIC, Serrano 119, 28006 Madrid, Spain

Search for more papers by this author
D. Bénachour

D. Bénachour

Faculté des Sciences de l'ingénieur, Département de Génie des Procédés, Université Ferhat Abbas de Sétif, Sétif 19000, Algérie

Search for more papers by this author
F.J. Baltá-Calleja

Corresponding Author

F.J. Baltá-Calleja

Instituto de Estructura de la Materia, CSIC, Serrano 119, 28006 Madrid, Spain

Instituto de Estructura de la Materia, CSIC, Serrano 119, 28006 Madrid, Spain===Search for more papers by this author
First published: 10 June 2003
Citations: 19

Abstract

Microhardness tests, Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC) measurements were performed on melt-pressed films of multicomponent blends based on low-density polyethylene (LDPE), linear LDPE (LLDPE), high-density polyethylene (HDPE), and polypropylene (PP), and their recycled homologues. Some of the PE blends also contained ethylene-propylene-diene monomer (EPDM) as compatibilizer. In all cases, the variation of microhardness as a function of content of the recycled component follows the additivity law of components. Thus, the range of hardness values of polyolefin blends can be controlled by choice of both components and their relative content in the blend. The hardness of the components increases from LDPE, to LLDPE, to HDPE, to PP and increases from 20 to 84 MPa. For recycled components, the hardness values are reduced by ∼15%. According to DSC results, all the blends are immiscible. Results are discussed in terms of the levels of crystallinity reached for the different blends. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 2046–2050, 2003

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.