Journal
ACS NANO
Volume 11, Issue 1, Pages 325-334Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.6b05780
Keywords
bio-based; artificial nacre; in situ reduction and cross-linking graphene oxide; high strength and toughness
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Funding
- laboratory of Qingdao Institute of Bioenergy Bioprocess Technology, Chinese Academy of Sciences, China
- K.C. Wong Education Foundation
- Youth Innovation Promotion Association of CAS
- Qingdao Institute of Bioenergy and Bioprocess Technology Director Technology Foundation
- Shandong Provincial Natural Science Foundation for Distinguished Young Scholar, China [JQ201305]
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Demands for high strength integrated materials have substantially increased across various kinds of industries. Inspired by the relationship of excellent integration of mechanical properties and hierarchical nano/microscale structure of the natural nacre, a simple and facile method to fabricate high strength integrated artificial nacre based on sodium carboxymethylcellulose (CMC) and borate cross-linked graphene oxide (GO) sheets has been developed. The tensile strength and toughness of cellulose-based hybrid material reached 480.5 +/- 13.1 MPa and 11.8 +/- 0.4 MJm(-3) by a facile in situ reduction and cross-linking reaction between CMC and GO (0.7%), which are 3.55 and 6.55 times that of natural nacre. This hybrid film exhibits better thermal stability and flame retardancy. More interestingly, the hybrid material showed good water stability compared to that in the original water-soluble CMC. This type of hybrid has great potential applications in aerospace, artificial muscle, and tissue engineering.
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