期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 109, 期 -, 页码 290-297出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2018.03.007
关键词
Graphene; Cellulose; Nanocomposites; Dispersion
资金
- National Natural Science Foundation of China [51572187, 51563008, 51662009, 31660264]
- Provincial Natural Science Foundation of Jiangxi [20161BAB206149]
- Key Project of Natural Science Foundation of Jiangxi Province [20161ACB20018]
Homogeneous dispersion of graphene nanosheets in polymer matrices is still a big challenge in the area of nanocomposites. Herein we demonstrate a layer-by-layer (LBL) interface culture strategy to homogeneously distribute graphene (GE) nanosheets in three-dimensional (3D) bacterial cellulose (BC) matrix. In GE/BC nanocomposite hydrogels, the graphene nanosheets are closely bundled by BC nanofibers, which greatly improves the mechanical properties of GE/BC hydrogels. The improvements in tensile strength and modulus over bare BC reach 91% and 279%, respectively, for the GE/BC nanocomposite with 0.30 wt% graphene, which are very impressive for graphene-reinforced hydrogels. The scalable, versatile, and ecofriendly methodology is extendable to the fabrication of other BC-based nanocomposite hydrogels.
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