Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768018, India.
Carbohydr Polym. 2013 Jun 20;95(2):728-32. doi: 10.1016/j.carbpol.2013.02.080. Epub 2013 Mar 21.
A series of cellulose based nanobiocomposites (cellulose/BN) were prepared with incorporation of various percentage of nano boron nitride (BN). The interaction between cellulose and boron nitride was studied by Fourier transform infrared spectroscopy (FTIR). The structure of cellulose/BN nanobiocomposites was investigated by XRD, FESEM, and HRTEM. It was observed that the boron nitride nanoparticles were dispersed within cellulose matrix due to intercalation and partial exfoliation. The quantitative identification of nanobiocomposites was investigated by selected area electron diffraction (SAED). Thermal stabilities of the prepared nanobiocomposites were measured by thermo gravimetric analysis (TGA) and it was found that thermal stability of the nanobiocomposites was higher than the virgin cellulose. The oxygen barrier property of cellulose/BN nanobiocomposites was measured using a gas permeameter and a substantial reduction in oxygen permeability due to increase in boron nitride loading was observed. Further it was noticed that the chemical resistance of the nanobiocomposites was more than the virgin cellulose. Hence, the prepared nanobiocomposite may be widely used for insulating and temperature resistant packaging materials.
一系列基于纤维素的纳米生物复合材料（纤维素/BN）通过掺入不同百分比的纳米氮化硼（BN）制备而成。通过傅里叶变换红外光谱（FTIR）研究了纤维素和氮化硼之间的相互作用。通过 XRD、FESEM 和 HRTEM 研究了纤维素/BN 纳米生物复合材料的结构。观察到由于插层和部分剥离，氮化硼纳米颗粒分散在纤维素基质中。通过选区电子衍射（SAED）定量鉴定了纳米生物复合材料。通过热重分析（TGA）测量了制备的纳米生物复合材料的热稳定性，发现纳米生物复合材料的热稳定性高于原始纤维素。使用气体渗透计测量了纤维素/BN 纳米生物复合材料的氧气阻隔性能，观察到由于氮化硼负载增加，氧气透过率显著降低。此外，还注意到纳米生物复合材料的耐化学腐蚀性强于原始纤维素。因此，所制备的纳米生物复合材料可能广泛用于绝缘和耐高温包装材料。
