细菌纤维素纳米复合材料的研究进展

细菌纤维素是一种新型微生物合成材料,与植物纤维素相比,无木质素和半纤维素等伴生产物,同时具有高结晶度和高聚合度、超精细的网络结构、极高的抗张强度和优异的生物相容性,在食品、医药、纺织、化工等方面有着巨大的应用潜力。利用细菌纤维素的纳米网络结构和超强弹性模量等特点可以用于增强聚合物基体,制备无机纳米粒子的模板、分散载体以及用于制备透明增强复合材料。重点介绍了细菌纤维素与高分子材料、无机纳米材料等的纳米复合材料的研究进展,阐述了现阶段存在的问题并对该种复合材料的发展趋势进行了展望。

Progress on Study of Bacterial Cellulose Nanocomposite

Bacterial cellulose is a novel material synthesized by microbe. Compared with plant cellulose, it is free of lignin and semicellulose and other impurities. It presents unique properties such as high mechanical strength and an extremely fine and pure fiber network structure and good biocompatibility, which have potential applications in food, medicine, texitile and chemical industry. Due to its nanometer network structure and hign elastic modulus bacterial cellulose could be used as reinforcements in polymer composites and template and dispersing carrier for preparing inorganic nanoparticle. nanocomposites of bacterial cellulose with polymer and inorganic nanoparticle is introduced mainly. Problems existing in each work are discussed while the research emphsese are prospected in future in the correlative area.