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- Title
Mechanical properties and morphology of polylactide, linear low-density polyethylene, and their blends.
- Authors
Gursewak Singh; H. Bhunia; Anita Rajor; R. N. Jana; Veena Choudhary
- Abstract
Melt blending of linear low density polyethylene LLDPE and polylactide PLA was performed in an extrusion mixer with post extrusion blown film attachment with and without compatibilizergrafted low density polyethylene maleic anhydride. The blend compositions were optimized for tensile properties as per ASTM D 88291. On the basis of this, LLDPE 80 80 wt LLDPE and 20 wt polyLlactic acid PLLA and MAglowdensity polyethylene 804 80 wt LLDPE, 20 wt PLLA, and 4 phr compatibilizer were found to be an optimum composition. The blends were characterized according to their mechanical, thermal, and morphological behavior. Fourier transform infrared spectroscopy revealed that the presence of compatibilizer enhanced the blend compatibility to some extent. The morphological characteristics of the blends with and without compatibilizer were examined by scanning electron microscopy. The dispersion of PLLA in the LLDPE matrix increased with the addition of compatibilizer. This blend may be used for packaging applications. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
- Subjects
LOW density polyethylene; EXTRUSION process; MALEIC anhydride; CHEMICAL reactions; POLYETHYLENE
- Publication
Journal of Applied Polymer Science, 2010, Vol 118, Issue 1, p496
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.32305