Polyamide-6/Organointercalated zirconium phosphate nanocomposites (PA-6/ZrPOct) were prepared by melt extrusion. The synthesized lamellar ZrP was expanded with octadecylamine at different amine:phosphate ratio and its influence on thermal and thermo-mechanical, crystallographic and
molecular mobility characteristics of the nanocomposites were evaluated by thermogravimetry (TG), differential scanning calorimetry (DSC), dynamic-mechanical analysis (DMA), wide-angle X-ray diffraction (WAXD) and proton low field nuclear magnetic resonance (1H LFNMR). It was observed
a slight decrease for degradation temperatures T
onset and T
max for all nanocomposites. By DSC, PA-6 alpha-gamma phase transformation was detected. Also, PA-6 melting temperature and crystallinity degree were changed as function of the ratio amine:phosphate.
Similar behavior was noticed for glass transition temperature (T
g) and moduli (storage, E′, and loss, E″) in dynamic-mechanical evaluation. WAXD diffraction angles of ZrPOct shifted to lower values due to the effect of the amine:phosphate ratio.
SEM image showed that filler structure with nanometer dimension was got. Several evidences deduced that nanocomposites with different degree of intercalation and/or exfoliation could have been achieved.
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Organointercalated Zirconium Phosphate;
Document Type: Research Article
Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Avenida Horacio Macedo, 2030 CT Bloco J, 21941-598, Ilha do Fundão, Rio de Janeiro, Brazil
Laboratório de Radioisótopos Eduardo Penna Franca-Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
May 1, 2017
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