Flexibility improvement of poly(lactic acid) by stearate-modified layered double hydroxide.

Citation

Mahboobeh, Eili and Wan Yunus, Wan Md Zin and Hussein, Zobir and Ahmad, Mansor and Ibrahim, Nor Azowa (2010) Flexibility improvement of poly(lactic acid) by stearate-modified layered double hydroxide. Journal of Applied Polymer Science, 118 (2). pp. 1077-1083. ISSN 0021-8995; ESSN: 1097-4628

Abstract

Poly(lactic acid)/layered double hydroxide (PLA/LDH) nanocomposites were prepared from PLA and stearate-Mg3Al LDH via a solution casting method. The anionic clay Mg3Al LDH was prepared first by coprecipitation method from nitrate salts solution at pH 9 and then modified by stearate anions through an ion exchange reaction. This modification increased the basal spacing of the synthetic clay from 8.72 to 31.68 Å. The presence of stearate ions in the synthesized Mg3Al LDH was shown by the stearate-Mg3Al LDH infrared spectrum. When the stearate-Mg3Al LDH at the low concentration was dispersed in the PLA matrix, its layers were largely delaminated. The presence of 1.0 wt % of the stearate-Mg3Al LDH in the PLA improved drastically (of around 650%) of its elongation at break but retained its tensile strength and modulus as compared to those of the pure PLA.

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Additional Metadata

Item Type:	Article
Divisions:	Faculty of Science
DOI Number:	https://doi.org/10.1002/app.32461
Publisher:	Wiley
Keywords:	Poly(lactic acid); Nanocomposites; Anionic clay; TEM; Flexibility improvement.
Depositing User:	kmportal
Date Deposited:	05 Mar 2014 03:53
Last Modified:	21 Oct 2015 03:00
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1002/app.32461
URI:	http://psasir.upm.edu.my/id/eprint/14782
Statistic Details:	View Download Statistic

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