Journal
POLIMEROS-CIENCIA E TECNOLOGIA
Volume 20, Issue 3, Pages 231-235Publisher
ASSOC BRASIL POLIMEROS
DOI: 10.1590/S0104-14282010005000031
Keywords
Montmorillonite; PVC; XRD; low field NMR
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A modified silicate with cetylpyridinium was prepared from sodium clay with cation exchange in solution. The amount of modification agent for clay and the reaction time were evaluated. The materials produced were characterized using X ray diffraction (XRD), termogravimetric analysis (TGA) and low field nuclear magnetic resonance (NMR). The formation of new organic clay was confirmed, which was introduced in PVC for the formation of nanocomposites. The beginning of degradation of the new clay occurred at temperatures higher than commonly used in the processing of PVC. The nanocomposites were partially exfoliated and partially intercalated.
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