Physical and mechanical properties of thermoplastic starch/montmorillonite nanocomposite films

By V. P. Cyras, L. Manfredi, M. Ton-That, A. Vázquez. 2008

549 citations recorded by the source corpus.

Glycerol-plasticized starch/clay nanocomposites films were prepared from potato starch and three different loadings of montmorillonite aqueous suspensions by casting, to study the effect of the nanoclay in the properties of starch. The clay dispersion in the films was analyzed by X-ray diffraction (XRD). It was observed that the 001 diffraction peak of clay was shift to lower angles in the nanocomposites patterns providing strong evidence that the clay nanolayers formed an intercalated structure but not complete exfoliation. An improvement in the thermal resistance of starch with the addition of clay was also observed by means of thermogravimetric analysis (TGA). The water absorbed by the nanocomposites measured in an environment with a 75% of constant relative humidity was reduced by the addition of montmorillonite to the starch. The micro-tensile test was performed on the nanocomposite films showing significant improvement in the Young modulus up to 500% for the nanocomposite containing 5 wt% of clay.

Subfields: Biomaterials, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/904472d3a3759a8d751d5e95d322d858a1bbee50

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomaterials

In Polymers and Plastics

Citations in the corpus

Nanocomposites for food packaging applications (2009, background): “, 2003) and thermal degradation temperatures (Bertini, Canetti, Audisio, Costa, & Falqui, 2006; Cabedo et al., 2004; Cyras et al., 2008; Paul et al., 2003; Yu et al., 2003).”
Thermoplastic starches: Properties, challenges, and prospects (2013, background): “This technology is amajor step toward the development of starchbased plastics [98, 189].”
Cassava starch biodegradable films: Influence of glycerol and clay nanoparticles content on tensile and barrier properties and glass transition temperature (2012, unknown): “has also been observed for potato starch/montmorillonite composites (Cyras et al., 2008).”
Optimization of mechanical properties of thermoplastic starch/clay nanocomposites (2010, background): “The second one is 0.52 nm that is reported by Cyras et al. (2008) for a similar system.”
Nanoscience and nanotechnologies in food industries: opportunities and research trends (2014, background): “Clays have been also reported to improve the mechanical strength of biopolymers (Chen and Evans 2005; Cyras et al. 2008), although they may decrease polymer elongation (Petersson and Oksman 2006).”
Environmental friendly food nano-packaging (2017, background): “Nanocomposites with low silver nanoparticles content presented a better increased efficacy against E. coli than microcomposites with much higher silver in polyamide 6/silver-nano- and microcomposites (Damm et al. 2007, 2008).”