4.7 Article

Structure and properties of starch/PVA/nano-SiO2 hybrid films

期刊

CARBOHYDRATE POLYMERS
卷 86, 期 4, 页码 1784-1789

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2011.07.008

关键词

Biodegradable film; Nano-silicon dioxide; Corn starch; Structure; Properties

资金

  1. Special Fund for Scientific Research of the Forest in the Public Interest [201204808]
  2. National Natural Science Foundation of China [20976066]

向作者/读者索取更多资源

Starch/polyvinyl alcohol (PVA)/nano-silicon dioxide (nano-SiO2) biodegradable hybrid films were prepared via the sol-gel method. Fourier transform infrared spectroscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy were used to evaluate the structure of the films. The aging and biodegradable properties of the films were studied as well. A gel network was formed in the films; this network is responsible in improving the performance of the starch/PVA/nano-SiO2 hybrid films. The crystal structure of the films was increased owing to the addition of nano-SiO2. The addition of nano-SiO2 also delays aging of the films. However, the enzymatic degradation test shows that the addition of nano-SiO2 has no significant influence on the biodegradability of the films. (C) 2011 Elsevier Ltd. All rights reserved.

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