A Starch-Based Biodegradable Film Modified by Nano Silicon Dioxide

作者：Tang Huali; Xiong Hanguo^*; Tang Shangwen; Zou Peng

来源：Journal of Applied Polymer Science, 2009, 113(1): 34-40.

DOI：10.1002/app.29855

• biodegradable film
• nano silicon dioxide
• corn starch
• structure
• properties

The purpose of this work was to improve the properties of the starch/poly(vinyl alcohol) (PVA) films with nano silicon dioxide (nano SiO(2)). Starch/PVA/nano-SiO(2) biodegradable blend films were prepared by a solution casting method. The characteristics of the films were assessed by Fourier Transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). The results obtained in this study indicated that the nano-SiO(2), particles were dispersed evenly within the starch/PVA coating and an intermolecular hydrogen bond and a strong chemical bond C-O-Si were formed in the nano-SiO(2), and starch/PVA. That the blending of starch, F)VA and nano-SiO, particles led to uniform starch/PVA/nano-SiO(2), blend films with better mechanical properties. In addition, the nano-SiO, particles can improve the water resistance and light transmission of the blend films.

• 出版日期2009-7-5
• 单位华中农业大学