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Review on Production of Nanocellulose by Chemo-mechanical Method

机译：化学机械法制备纳米纤维素的研究进展

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摘要

Matter when handled in the range of one-billionth of a meter exhibits different physical and chemical properties. Nanoscale material having its newer dimension and multiple functional properties enhances the effective use of a valuable resource. The application of nanotechnology has already penetrated fields of composite science, pharmaceuticals, paint industry, health and hygiene, cosmetic industry, electronics and many more. Recent innovation in nanotechnology has resulted in development of nanocellulose, a material composed of nanoscale cellulose particles with high aspect ratio. Nanocellulose prepared from different lignocellulosic biomass systems is sustainable, green, environmentally benign and non-toxic. The nanoscale dimension and exceptional properties make nanocellulose a promising product for different applications such as reinforcing agent in biocomposites, paper, biodegradable films, paint industry, barriers for packaging industry, stabilizing agents in dispersions for technical films, cement industry, pharmaceuticals etc. Nanocellulose production by mechanical means is highly energy consuming and by chemical method produces lot of effluents while biological methods give very low yield. Hence, a combination of processes is being developed across various research organizations to produce nanocellulose in an energy efficient way with higher yield without affecting its performance characteristics. ICAR-CIRCOT, Mumbai has established novel protocols for preparation of nanocellulose by chemo-mechanical method. This paper provides a review of the current trends and progress in exploration of different energy efficient chemo-mechanical methods for nanocellulose production which are environment friendly and high yielding. Challenges and futureopportunities of different chemo-mechanical methods of nanocellulose production have been discussed along with the obstacles in the way for their widespread use.
机译：在十亿分之一米的范围内操作时，物质表现出不同的物理和化学性质。具有新尺寸和多功能功能的纳米级材料增强了宝贵资源的有效利用。纳米技术的应用已经渗透到复合科学，制药，油漆工业，健康与卫生，化妆品工业，电子学等领域。纳米技术的最新创新导致了纳米纤维素的发展，纳米纤维素是一种由高纵横比的纳米级纤维素颗粒组成的材料。由不同的木质纤维素生物质系统制备的纳米纤维素是可持续的，绿色的，对环境无害且无毒的。纳米级的尺寸和优异的性能使纳米纤维素成为不同应用的有前途的产品，例如生物复合材料，纸张，可生物降解的薄膜，涂料工业，包装工业的阻隔剂，工业薄膜，水泥工业，制药等分散体中的稳定剂。机械方式消耗大量能源，而化学方式则产生大量废水，而生物方式则非常低。因此，正在各个研究组织中开发工艺的组合，以在不影响其性能特征的情况下，以高能效的高能效方式生产纳米纤维素。孟买的ICAR-CIRCOT建立了通过化学机械方法制备纳米纤维素的新方案。本文概述了环境友好，高产的纳米纤维素生产的各种节能化学机械方法的研究现状和进展。已经讨论了不同化学机械方法生产纳米纤维素的挑战和未来机遇，以及其广泛使用的障碍。

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