Preparation and properties of glycerol plasticized-pea starch/zinc oxide-starch bionanocomposites

By Xiaofei Ma, P. Chang, Jingwen Yang, Jiu-gao Yu. 2009

161 citations recorded by the source corpus.

Abstract A bionanocomposite was cast using ZnO nanoparticles stabilized by soluble starch (nano-ZnO) as filler in a glycerol plasticized-pea starch (GPS) matrix. According to the characterization of nano-ZnO particles by Fourier-transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TG) and transmission electron microscopy (TEM), ZnO nanoparitlces (70 wt%) were encapsulated by starch (30 wt%) in nano-ZnO particles of about 10 nm. In GPS/nano-ZnO nanocomposites, loading a low level of nano-ZnO particles improved the pasting viscosity, storage modulus, glass transition temperature and UV absorbance. When the nano-ZnO content varied from 0 to 4 wt%, the tensile yield strength and Young’s modulus increased from 3.94 to 10.80 MPa and from 49.80 to 137.00 MPa, respectively. The water vapor permeability decreased from 4.76 × 10 −10 to 2.18 × 10 −10  g m −1  s −1  Pa −1 . The improvement in these properties may be attributed to the interaction between the nano-ZnO filler and GPS matrix.

Subfields: Biomaterials

View Paper: https://www.semanticscholar.org/paper/f3f82d1748eceaa5f550c4a90f6b693482b4e694

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In Biomaterials

1. K. Satyanarayana
2. F. Wypych
3. J. L. Guimarães
4. M. Saeidi
5. A. M. Nafchi
6. L. Ramos
7. A. Alias
8. C. K. Saul

Citations in the corpus

• Studies of the processing and characterization of corn starch and its composites with banana and sugarcane fibers from Brazil. (2010, background): “Also, the probable breaking of starch granules by water and glycerol as the temperature rises leads to the disruption of both inter- and intra-molecular hydrogen bonds, which also increases plasticity in the starch (Ma et al., 2009).”
• Thermoplastic starches: Properties, challenges, and prospects (2013, background): “[171] Ma, X.”
• Antimicrobial, rheological, and physicochemical properties of sago starch films filled with nanorod-rich zinc oxide (2012, background): “Although the incorporation of ZnO nanoparticles into the starch films have been reported to improve some properties (Ma et al., 2009; Yu et al., 2009), ZnO nanorod-reinforced starch has not been investigated.”