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Compatibility and properties of biodegradable blend films with gelatin and poly(vinyl alcohol)

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Abstract

The blend films with gelatin and poly(vinyl alcohol) (PVA) were prepared by a solution casting method. The compatibility between gelatin and PVA in the blend films was investigated. The transmittance, Fourier-transform infrared spectroscopy (FTIR), x-ray diffraction (XRD), thermogravimetry analysis (TG), and differential scanning calorimetry (DSC) were employed to characterize the resultant blend films. According to optic result, the opacity of the blend film at the ratio of 20/80 (w/w, Gel to PVA) was the lowest, indicating the best compatibility between Gel and PVA at the ratio. The results of IR, XRD, DSC, and TG revealed an intensive interaction and good compatibility between them in the blend film at the ratio. The mechanical properties and solubility showed that PVA content in the blend films obviously affected the elongation at break and solubility. The mechanical properties and water resistance of gelatin film may be improved by the introduction of PVA.

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Authors and Affiliations

  1. College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China

    Xiping Gao  (高喜平), Keyong Tang  (汤克勇), Jie Liu & Xuejing Zheng

  2. School of Chemical Engineering and Pharmaceutics, Henan University of Science and Technology, Luoyang, 471023, China

    Xiping Gao  (高喜平) & Yuqing Zhang

Authors
  1. Xiping Gao  (高喜平)
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  2. Keyong Tang  (汤克勇)
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  3. Jie Liu
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  4. Xuejing Zheng
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  5. Yuqing Zhang
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Corresponding author

Correspondence to Keyong Tang  (汤克勇).

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Funded by the National Natural Science Foundation of China (Nos. 21076199, 51373158)

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Gao, X., Tang, K., Liu, J. et al. Compatibility and properties of biodegradable blend films with gelatin and poly(vinyl alcohol). J. Wuhan Univ. Technol.-Mat. Sci. Edit. 29, 351–356 (2014). https://doi.org/10.1007/s11595-014-0920-9

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  • DOI: https://doi.org/10.1007/s11595-014-0920-9

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