Green and facile fabrication of smart cellulose composites assembled by graphene nanoplates for dual sensing
- 38 Downloads
Novel, flexible, smart cellulose nanocomposite plates were fabricated by coating graphene nanoplate (GnPs) solution on the surface of cellulose sol, followed by hot pressing, in which GnPs was directly exfoliated and dispersed by PVP as exfoliating and dispersing agent. The structure, properties, and dual sensing (strain and pressure) of the resultant cellulose/GnPs nanocomposite plates (CGP) were systematically investigated. The formed conductive graphene network within the cellulose substrate, and the strong interfacial adhesion between cellulose and GnPs endowed the CGP excellent electromechanical properties, i.e. low electrical resistance (< 270 Ω cm), stable sensitivity on strain (GF 5.87) and pressure (S 0.037 kPa−1), good durability (> 1000 loading/unloading cycles). This work provided a green and facile approach to fabricate smart cellulose sensor responding to different external stimuli like stretch and compress by electrical resistance changes.
KeywordsCellulose Graphene nanoplates Smart sensor Casting Hot-press
The work was financially supported by the Public Technology Research Plan of Zhejiang Province (LGF18E030003), National Natural Science Foundation of China (51672251), and 521 Talent Project of Zhejiang Sci-Tech University.
- Bourlinos AB, Georgakilas V, Zboril R, Steriotis T, Stubos AK, Trapalis C (2009) Aqueous-phase exfoliation of graphite in the presence of polyvinylpyrrolidone for the production of water-soluble graphenes. Solid State Commun 149:2172–2176. https://doi.org/10.1016/j.ssc.2009.09.018 CrossRefGoogle Scholar
- Chen L, Hou X, Song N, Shi L, Ding P (2018a) Cellulose/graphene bioplastic for thermal management: enhanced isotropic thermally conductive property by three-dimensional interconnected graphene aerogel. Compos Part A Appl S 107(4):189–196. https://doi.org/10.1016/j.compositesa.2017.12.014 CrossRefGoogle Scholar
- Hadi A, Zahirifar J, Karimi-Sabet J (2018) Graphene nanosheets preparation using magnetic nanoparticle assisted liquid phase exfoliation of graphite: the coupled effect of ultrasound and wedging nanoparticles. Ultrason Sonochem 44:204–214. https://doi.org/10.1016/j.ultsonch.2018.02.028 CrossRefGoogle Scholar
- Josphat P, Leena S-J, Patrick G, Thad M (2018) A comparative study of mechanical, thermal and electrical properties of graphene-, graphene oxide- and reduced graphene oxide-doped microfibrillated cellulose nanocomposites. Compos Part B Eng 147:104–113. https://doi.org/10.1016/j.compositesb.2018.04.018 CrossRefGoogle Scholar
- Zhen YX, Sergio P, Emanuele T, Giuliano G, Franco C, Vittorio M, Alberto Z, Vittorio B (2013) The exfoliation of graphene in liquids by electrochemical, chemical, and sonication-assisted techniques: a nanoscale study. Adv Funct Mater 23(37):4684–4693. https://doi.org/10.1002/adfm.201203686 Google Scholar