Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 48, Issue -, Pages 137-143Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2013.01.005
Keywords
Nano-structures; Polymer-matrix composites (PMCs); Mechanical properties; Thermosetting resin
Funding
- National Research Council of Argentina (CONICET)
- National Agency of Scientific and Technologic Promotion (ANPCyT)
- National University of Mar del Plata (UNMdP)
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In this work, unsaturated polyester/bentonite nanocomposites were obtained and characterized. The bentonite used was unmodified and with different chemical treatments. The effects of these different chemical modifications (cation exchange reactions with quaternary ammonium and phosphonium salts) of this clay as well as the effect of clay content on the thermal, barrier (water absorption), mechanical (flexural) and dynamic-mechanical properties of unsaturated polyester matrix were analyzed. The results clearly show that the chemical modifications of the clay cause a desired effect on its final properties improving the performance of the nanocomposites. The enhancements could be directly related to the dispersion of the clay inside the matrix, as shown by transmission electron microscopy. (C) 2013 Elsevier Ltd. All rights reserved.
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