Tensile properties biodegradable polymer nanocomposite

The tensile modulus of a polymeric material has been shown to be remarkably improved when nanocomposites are formed with layered silicates. In the case of biodegradable polymer nanocomposites, most studies report the tensile properties as a function of clay content. In most conventionally filled polymer systems, the modulus increases linearly with the filler volume fraction, whereas for these nanoparticles much lower filler concentrations increase the modulus sharply and to a much larger extent. The dramatic enhancement of the modulus... 

Explain the improvement in the following properties, with suitable examples, for different vegetable oil-based polymer nanocomposites (i) tensile strength, (ii) gas permeability, (iii) thermostability and (iv) biodegradability. 

Le Digabel F, Boquillon N, Dole P et al (2004) Properties of thermoplastic composites based on wheat-straw lignocellulosic fillers. J Appl Polym Sci 93 428-436 Lee S -R, Park FI-M, Lim H et al (2002) Microstructuie, tensile properties, and biodegradability of aliphatic polyester/clay nanocomposites. Polymer 43 2495-2500 Lee SFI, Ohkita T, Kitagawa K (20(M) Eco-composite from poly(lactic acid) and bamboo fiber. Flolzforschung 58 529-536... 

Nanocomposite researchers are generally interested in the tensile properties of final materials, but there are very few reports concerning the flexural properties of neat biodegradable polymer and its nanocomposites with OMLS. Very recently, Sinha Ray et reported the detailed measurement of flexural... 

Biodegradable thermoplastic nanocomposite polymers obtained by this method are characterized by being transparent and by having improved tensile strengths and good elongation properties. 

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