Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 8, Issue 30, Pages 19197-19201Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b06618
Keywords
thermoplastic starch; shape memory; humidity; nanocomposite; thermomechanical cycles
Funding
- Spanish Ministry of Economy and Competitiveness [MAT2013-48059-C2-1-R, MAT2014-55778-REDT]
- Regional Government of Madrid [S2013/MIT-2862]
- MINECO [RYC-2014-15595]
- Region Wallonne
- European Community (FEDER, FSE)
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Smart multiresponsive bionanocomposites with both humidity- and thermally activated shape-memory effects, based on blends of ethylene-vinyl acetate (EVA) and thermoplastic starch (TPS) are designed. Thermo- and humidity-mechanical cyclic experiments are performed in order to demonstrate the humidity- as well as thermally activated shape memory properties of the starch-based materials. In particular, the induced-crystallization is used in order to thermally activate the EVA shape memory response. The shape memory results of both blends and their nanocomposites reflect the excellent ability to both humidity- and thermally activated recover of the initial shape with values higher than 80 and 90%, respectively.
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