کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1886334 | 1533540 | 2013 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effect of γ irradiation on poly(vinyl alcohol) and bacterial cellulose composites used as packaging materials Effect of γ irradiation on poly(vinyl alcohol) and bacterial cellulose composites used as packaging materials](/preview/png/1886334.png)
The aim of this paper is to present the influence of bacterial cellulose microfibrils and γ-radiation dose on poly(vinyl alcohol) (PVA)–bacterial cellulose (BC) composites. Two composite materials were obtained: the first one from PVA aqueous solution 4% and 5% wet bacterial cellulose and the second from the same PVA solution and 10% wet bacterial cellulose. In terms of PVA/dry BC ratios (w/w) for these films the ratios are 1/0.025 and 1/0.050. The obtained composite materials were characterized by infrared spectroscopy with Fourier transform (FT-IR) and UV–vis spectroscopy in order to evaluate the irradiation effect on their stability. The swelling behavior of the polymeric composites was also studied. The composite materials were compared with a film of pure PVA and a dry BC membrane.
Journal: Radiation Physics and Chemistry - Volume 84, March 2013, Pages 200–204