【摘要】 通过X -射线衍射、透射电镜 (TEM)、激光光散射、示差扫描量热分析 (DSC)、热重分析 (TGA)以及红外光谱等分析手段 ,研究了一种具有纳米尺寸的棒状微晶纤维素的物理化学性质 ,着重研究了它在不同温度下的热行为。结果表明 ,由于粒径及比表面积的变化 ,这种棒状微晶纤维素的热行为与天然纤维素以及经过DMSO前处理的纤维素相比较 ,具有一些独特的性质更多还原

【Abstract】 The paper studies physical properties of a kind of rod-like nano-crystalline cellulose (NCC) made from cotton fibers. The crystal form, the average crystallinity and the average crystallite size were determined by X-ray diffraction. The particle shape and size was characterized with transmission electron microscopy and dynamic laser scattering (DLS). DSC and TGA were employed to study its thermal properties. FTIR was used to detect the changes of structure after the treatment. It can be inferred from the results that the rod-like MCC shows some special properties during thermal treatments.更多还原