The objective of this work was to investigate the influence of different gamma ray dosages (5, 10, and 10 kGy) on the structural, mechanical, surface and barrier properties of chitosan (Ch) based nanocomposite film. The results showed gamma irradiation caused an increase in the surface hydrophobicity, water vapor permeability and sensitivity of films to water and also, yellowness and opacity of films increased, simultaneously. By increasing the irradiation doses up to 10 kGy, the mechanical properties of Ch/BCNC film was significantly enhanced. As observed by FTIR spectra, no change occurred in the chemical functional groups of the films during irradiation. XRD studies confirmed that crystallinity of films was increased after irradiation. The nanocomposite film irradiated by 10 kGy had the highest thermal stability. In conclusion, gamma radiation can be considered as a safe method for sterilization of foods and modification of Ch/BCNC film properties.

这项工作的目的是研究不同的伽马射线剂量（5、10和10 kGy）对基于壳聚糖（Ch）的纳米复合膜的结构，机械，表面和阻隔性能的影响。结果表明，伽马辐射导致膜的表面疏水性，水蒸气渗透性和膜对水的敏感性增加，并且膜的黄度和不透明性同时增加。通过将辐照剂量提高到10 kGy，Ch / BCNC薄膜的机械性能得到了显着增强。如通过FTIR光谱观察到的，在辐照期间膜的化学官能团未发生变化。XRD研究证实，辐照后膜的结晶度增加。10 kGy辐照的纳米复合膜具有最高的热稳定性。结论，