RT info:eu-repo/semantics/article T1 Humidity-activated Shape Memory Effects on Thermoplastic Starch/EVA Blends and Their Compatibilized Nanocomposites A1 Sessini, Valentina A1 Raquez, Jean-Marie A1 Lourdin, Denis A1 Maigret, Jean-Eudes A1 Kenny, José María A1 Dubois, Philippe A1 Peponi, Laura K1 blends K1 compatibilizer effect K1 EVA K1 humidity-mechanical cycles K1 shape memory K1 TPS K1 Química K1 Chemistry AB In this work, a systematic study on the humidity-activated shape memory properties of dual-responsive shape memory bionanocomposites with both humidity- and thermally-activated shape memory effects is reported. The study is performed through humidity-mechanical cycles in an Instron machine with a temperature chamber equipped with an ultrasonic humidity generator. In particular, the bionanocomposites studied are based on blends of ethylene&-vinyl acetate (EVA) and thermoplastic starch reinforced with natural bentonite. In our previous work, thermomechanical cycles are performed by using EVA-induced crystallization and a preliminary humidity-activated shape memory test is designed. Herein, the shape memory results of both blends and their nanocomposites reflect the very good ability to humidity-activated recover of the initial shape with values higher than 80%. Moreover, the ability to fix the temporary shape of this systems is very good, especially when nanofillers are added. The compatibilizer effect of natural bentonite is demonstrated by means of different techniques such as scanning emission microscopy and mapping by confocal Raman spectroscopy. SN 1022-1352 YR 2017 FD 2017-11-15 LK http://hdl.handle.net/10017/43769 UL http://hdl.handle.net/10017/43769 LA eng DS MINDS@UW RD 28-mar-2024