Functional Bio-nanocomposites: Chemi-mechanical and Morphological Attributes

纤维素纳米纤维和微纤维的分离及其在各种研究和先进技术应用中的应用由于其环境效益和特殊的功能性质而迅速扩大，特别是在纳米材料科学中。据报道，天然形式的纤维素沿着链轴的拉伸弹性模数高达138 Gpa。虽然大量文献强调了微米和纳米纤维在结构部件中作为强度增强剂的潜力，但没有实际证据表明纳米纤维作为一种特殊的强度增强剂的作用。为了在复合材料中赋予纳米纤维素的强度特性，需要更好地了解纳米纤维素及其化学和生物过程衍生的衍生物的物理化学、结构和形态特征。这项研究的目的是通过了解纤维素基复合材料的性能与纤维的表面、内在和形态特征的依赖关系，克服应用纳米纤维素独特特性的障碍。纤维表面与其他分子的结合性能、纤维形态和微观结构对跨结晶度的影响，因此，如果了解界面，可以用来开发具有独特功能和性能的纳米纤维增强可回收纳米复合材料。

Isolation and application of cellulose nano and microfibrils in various research and advanced technological applications are expanding rapidly due to their environmental benefits and specific functional properties, especially in nanomaterial science. The tensile modulus of elasticity of native forms of cellulose has been reported to be as high as 138 GPa along the chain axis. Although numerous literatures highlighted potential to use micro-and nano-cellulose in structural components as strength enhancer, no practical evidence is available to demonstrate the role of nanocellulose as an extra-ordinary strength enhancer. In order to impart the strength characteristics of nanocellulose in a composite material there is a need to better understand the physico-chemical, structural and morphological characteristics of nanocellulose and its derivatives derived from chemical and biological processes. The aim of the proposed research is to overcome barrier to apply unique characteristics of nanocellulose by understanding the dependence of cellulosic fibrils-based composites properties on surface ,intrinsic and morphological characteristics of the fibres. The effect of fiber surface binding properties of cellulose with other molecules, fibre morphology and microstructure on transcrystallinity, and hence the interface, if understood, could be used to develop /nano fibre reinforced recyclable nanocomposites with unique functional and performance properties.