Formation of functional hierarchical structures from aqueous dispersions of cellulose nanofibrils

到目前为止，我们已经通过使用纳米原纤的表面羧化方法，即TEMPO介导的氧化，将纤维素纳米原纤分散到水中;分散的纳米原纤自发地排列成向列状顺序。在本研究中，我们已经构建了广泛的散装材料，如水凝胶，气凝胶，和薄膜，通过控制自对准纤维素纳米纤丝的集成模式。这些本体材料由排列的纤维素纳米纤丝组成，并表现出优异的性能。

We have so far dispersed cellulose nanofibrils into water by using a surface carboxylation method of the nanofibrils, namely the TEMPO-mediated oxidation; the dispersed nanofibrils spontaneously align into a nematic-like order. In the present study, we have constructed a wide range of bulk materials, such as hydrogels, aerogels, and films, by controlling the integration mode of the self-aligned cellulose nanofibrils. These bulk materials consisted of aligned cellulose nanofibrils and exhibited outstanding properties.