纤维素/大豆分离蛋白/蒙脱土纳米复合材料的制备及性能研究

以离子液体为溶剂,天然竹纤维和高度剥离的大豆蛋白/蒙脱土（SPI/MMT）复合材料为原料,采用溶液共混的方法制备了纤维素/SPI/MMT纳米复合材料。讨论了SPI/MMT的加入对于MMT在纤维素基体中分散程度的影响。通过XRD,SEM,TG,力学性能、阻隔性能测试等方法研究了纤维素/SPI/MMT纳米复合材料的相容性,结构及MMT的加入对于纤维素性能的影响。实验结果表明,当MMT含量小于6wt%时,可以形成剥离或插层结构的纤维素/SPI/MMT纳米复合材料,材料具有较好的力学性能,热稳定性和气体阻隔性能。

Preparation and properties of cellulose/soy protein isolate /montmorillonite films

Cellulose/soy protein isolate /montmorillonite composite films were prepared by using ionic liquid, AmimCl as solvent. This research was focused on the exploitation of SPI/MMT nanocomposite as a compatibilizer in order to homogeneously disperse the clay particles in the cellulose matrix. As a result, the cellulose/SPI/MMT composite films at low MMT content exhibited an improvement in tensile properties, thermal stability and barrier capacities.