Comparison of poly(ethylene-co-acrylic acid) loaded Zn2+-montmorillonite nanocomposites and poly(ethylene-co-acrylic acid) zinc salt

Title
Comparison of poly(ethylene-co-acrylic acid) loaded Zn2+-montmorillonite nanocomposites and poly(ethylene-co-acrylic acid) zinc salt
Author(s)
서길수이돈
Keywords
REACTIVE COMPATIBILIZATION; RHEOLOGICAL PROPERTIES; PA6/LDPE BLENDS; MORPHOLOGY; COPOLYMER; IONOMERS; MONTMORILLONITE; RUBBER
Issue Date
201409
Publisher
ELSEVIER SCIENCE INC
Citation
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.20, no.5, pp.3122 - 3127
Abstract
Novel nanocomposite films based on poly(ethylene-co-acrylic acid) (PEAA) and zinc montmorillonite (Zn2+-MMT) were fabricated using a solution casting method with water as the solvent. Transmission electron microscopy indicated that Zn2+-MMT was distributed finely in the PEAA matrix. X-ray diffraction indicated that an ion exchange process occurs between Zn2+-MMT and PEAA. The nanocomposites filled with a low Zn2+-MMT loading increased the tensile strength and elongation at break. The significant improvements in these mechanical properties were attributed to the fine dispersion of Zn2+-MMT in the polymer and the covalent interaction between the polymer chains and Zn2+ cations. Thermogravimetric analysis and differential thermal calorimetry confirmed that PEAA formed a network through the presence of Zn2+ cations. A poly(ethylene-co-acrylic acid) zinc salt (PEAAZn) film by hot pressing was introduced for comparison. Zn2+-MMT improved the mechanical properties of the PEAA significantly compared to that of PEAAZn. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/30909http://dx.doi.org/10.1016/j.jiec.2013.11.054
ISSN
1226-086X
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공과대학 > 화학공학부 > Articles
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