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Sodium alginate/Na + ‐rectorite composite films: Preparation, characterization, and properties
Author(s) -
Yang Lianli,
Liang Guozheng,
Zhang Zengping,
He Shaobo,
Wang Jinhe
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.30521
Subject(s) - materials science , scanning electron microscope , fourier transform infrared spectroscopy , microstructure , composite number , intercalation (chemistry) , transmission electron microscopy , polymer , chemical engineering , sodium , sodium silicate , composite material , infrared spectroscopy , nuclear chemistry , polymer chemistry , chemistry , nanotechnology , inorganic chemistry , organic chemistry , engineering , metallurgy
Rectorite (REC), one kind of layered silicates, has been applied to polymers to improve their properties. The sodium alginate (SA) layered silicate is a new option to modify the properties of polysaccharides. In this article, SA was modified by Na + ‐rectorite (Na + REC). The chemical structures and microstructures of Na + REC and Na + REC modified SA (SA/Na + REC) were analyzed by using Fourier transform infrared spectrometer and X‐ray diffraction. The morphologies of SA/Na + REC composites were observed by using scanning electron microscopy and transmission electron microscopy. The mechanical and anti‐ultraviolet properties as well as thermal properties of SA/Na + REC composites were investigated. The results show that the properties of pure SA film can be improved by the addition of Na + REC, and SA/Na + REC composite containing 2 wt % Na + REC has the best intercalation effect and optimum comprehensive properties among the prepared composites in this article. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009