Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 333, Taiwan; Department of Chemistry, Prof. Rajendra Singh (Rajju Bhaiya) institute of Physical Sciences for Study and Research, Veer Bahadur Singh Purvanchal University, Jaunpur, U.P. 222003, India.
Department of Chemistry, Prof. Rajendra Singh (Rajju Bhaiya) institute of Physical Sciences for Study and Research, Veer Bahadur Singh Purvanchal University, Jaunpur, U.P. 222003, India.
Int J Biol Macromol. 2024 Apr;264(Pt 1):130560. doi: 10.1016/j.ijbiomac.2024.130560. Epub 2024 Mar 1.
Hitherto unreported hybrid nanofillers (CNC:MgO) reinforced chitosan (CTS) based composite (CNC:MgO)/CTS films were synthesized using a solution-casting blend technique and synergistic effect of hybrid nanofiller in terms of properties enhancement were investigated. Optical microscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD) technique, fourier-transform infrared spectroscopy (FTIR), and field emission scanning electron microscopy (FESEM) were used to characterize the films. The hybrid nanofiller considerably changed the transparency and color of the CTS films. The tensile strengths of (3 wt%) CNC/CTS, (3 wt%) MgO/CTS, (1:1)(CNC:MgO)/CTS, (1:2)(CNC:MgO)/CTS and (2:1)(CNC:MgO)/CTS films were 27.49 %, 35.60 %, 91.62 %, 38.22 %, and 29.32 % higher than pristine CTS films respectively, while the water vapor permeation were 28.21 %, 30.77 %, 34.62 %, 38.46 %, and 37.44 % lower than pristine CTS film, respectively. Moreover, the CTS composite films exhibited an improvement in overall water barrier properties after incorporating hybrid nanofillers. Our observations suggest that chitosan-based hybrid nanofiller composite films are a good replacement for plastic-based packaging materials within the food industry.
迄今为止，尚未有报道称将混合纳米填料（CNC:MgO）增强壳聚糖（CTS）基复合材料（CNC:MgO）/CTS 薄膜通过溶液浇铸共混技术进行合成，并研究了在性能增强方面的协同作用。采用光学显微镜、透射电子显微镜（TEM）、X 射线衍射（XRD）技术、傅里叶变换红外光谱（FTIR）和场发射扫描电子显微镜（FESEM）对薄膜进行了表征。混合纳米填料极大地改变了 CTS 薄膜的透明度和颜色。（3wt%）CNC/CTS、（3wt%）MgO/CTS、（1:1）（CNC:MgO）/CTS、（1:2）（CNC:MgO）/CTS 和（2:1）（CNC:MgO）/CTS 薄膜的拉伸强度分别比原始 CTS 薄膜提高了 27.49%、35.60%、91.62%、38.22%和 29.32%，而水蒸气渗透率分别比原始 CTS 薄膜降低了 28.21%、30.77%、34.62%、38.46%和 37.44%。此外，在加入混合纳米填料后，CTS 复合薄膜的整体水阻隔性能得到了提高。我们的观察结果表明，壳聚糖基混合纳米填料复合材料是食品工业中塑料基包装材料的良好替代品。
