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Title of article :
Structure and properties of starch/PVA/nano-SiO2 hybrid films
Author/Authors :
Yao، نويسنده , , Kunhua and Cai، نويسنده , , Jie and Liu، نويسنده , , Miao and Yu، نويسنده , , Yan and Xiong، نويسنده , , HanGuo and Tang، نويسنده , , Shanwen and Ding، نويسنده , , Shiyong، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2011
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Abstract :
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.
Keywords :
Biodegradable film , properties , Corn starch , structure , Nano-silicon dioxide
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