|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Pan American Materials Congress: Materials for Transportation and Lightweighting
||PAN-39: Thermo−Mechanical Behavior of Nanostructure Polyacrylic Polymer Based on Al2 O3 and Bentonite Nanoparticles
||Ruben Castillo-Pérez, Mireya Lizbeth Hernández-Vargas, Oscar Hernández-Guerrero, Bernardo Fabián Campillo-Illanes, Osvaldo Flores-Cedillo
|On-Site Speaker (Planned)
This work focuses on the influence of inorganic spheres-particles such as Al<sub>2</sub> O<sub>3</sub> and platelets, such as Bentonite clay, on the thermo-mechanical properties of the acrylic polymer. The nanocomposites were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis, uniaxial tension, nanoindentation and scanning electron microscopy (SEM). Films drawn from the latex exhibited excellent optical transparency and no evidence of aggregation was detected by SEM and X-ray energy dispersive spectroscopy (EDS). The analysis of the thermal and mechanical properties in the presence of platelets nanoparticles (Bentonite), showed an increase in the glass transition temperature (T<sub>g</sub>), decomposition temperatures (T<sub>dec</sub>), the Young's modulus and their hardness. On the other hand, in the presence of spherical nanoparticles (Al<sub>2</sub> O<sub>3</sub>), the thermal (T<sub>g</sub> and T<sub>dec</sub>) and mechanical properties decrease, due to the morphology, dimension (e.g., aspect ratio) and degree of dispersion of the nanofillers in the polymer matrix.
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