期刊
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷 111, 期 2, 页码 1303-1310出版社
SPRINGER
DOI: 10.1007/s10973-012-2510-4
关键词
Acrylic latexes; Nanofillers Thermal stability; Viscoelastic behavior; Oxygen permeability
An organo-modified montmorillonite (Cloisite(A (R))30B) or an unmodified boehmite (Disperal(A (R))40) have been added to two acrylic latex dispersions (one of them UV-curable) for obtaining nanocomposite coatings. X-ray diffraction and transmission electron microscopy show a high degree of exfoliation in the nanocoatings based on montmorillonite, together with the deagglomeration of the micrometer-sized boehmite powder and the presence of single boehmite crystallites within the polymer matrix. Such morphologies are found to enhance the thermal and thermo-oxidative stability of the latexes and to significantly decrease their oxygen permeability, as well.
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