Contact
    Start Publications Water-Induced shape memory effect of nanocellulose papers from ...
    ←  Publication Finder
    Attension

    Water-Induced shape memory effect of nanocellulose papers from sisal cellulose nanofibers with graphene oxide

    Year: 2018

    Journal: Carbohydr. Polym., Volume 179, JAN 1, page 110–117

    Authors: Song, Laifu; Li, Yuqi; Xiong, Zhongqiang; Pan, Lulu; Luo, Qiyun; Xu, Xu; Lu, Shaorong

    Organizations: National Natural Science Foundation of China [51463007, 51605109, 51763009]; Natural Science Foundation of Guangxi Province, China [2014GXNSFDA118006, 2016GXNSFBA380004]; Guangxi Ministry-Province Jointly-Constructed Cultivation Base for State Key Laboratory of Processing for Non-ferrous Metal and Featured Materials [15AA, 15KF-9]; Young teachers based capacity building project of Guangxi [KY2016YB198]

    Keywords: Sisal cellulose; Shape memory properties; Water-induced mechanism; Graphene oxide

    A novel water-induced shape memory nanocomposites were prepared by introducing graphene oxide (GO), which was based on microcrystalline cellulose nanofibers (MSF-g-COOH) extracting from sisal fibers. The results showed that the water-induced shape memory properties of MSF-g-COOH were significantly improved by the strong hydrogen bonding interaction between MSF-g-COOH and GO, It leads to some additional physically cross-linked points in MSF-g-COOH. On the other hand, at 0.5 wt% GO loading, tensile strength and Young modulus of the nanocomposite increased from 139 to 184 MPa, and from 5.77 to 8.54 GPa, respectively, compared to those of pure MSF-g-COOH. Furthermore, a water-induced model was proposed to discuss the water-induced shape memory behaviors of the MSF-g-COOH/GO nanocomposites. This study provides a framework for developing a cellulose based shape memory polymers (CSMPs) and better understanding the shape recovery mechanism in water-induced CSMPs.
    View publication