| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10604758 | Carbohydrate Polymers | 2011 | 7 Pages |
Abstract
Glycerol-plasticized pea starch/graphene oxide (PS/GO-n) biocomposite films with different loading levels of graphene oxide (GO) were prepared by solution casting method. The structure, morphologies and properties of biocomposite films were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), atomic force microscopy (AFM), thermal gravimetric analysis (TGA), Ultraviolet-visible (UV-vis) and tensile tests. The results revealed that hydrogen bonding formed in the biocomposite films, which improved compatibility between GO fillers and starch matrix. The tensile strength (Ïb) and Young's modulus (E) of starch films containing 2.0Â wt% GO increased from 4.56Â MPa, 0.11Â GPa to 13.79Â MPa, 1.05Â GPa, respectively, while the elongation at break (Éb) decreased from 36.06% to 12.11%. The introduction of GO also reduced moisture uptake (Mu) and UV transmittance of starch films. In addition, TGA showed that the thermal stability of biocomposite films was better than that of neat starch film.
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Authors
Rui Li, Changhua Liu, Jun Ma,