Journal
RSC ADVANCES
Volume 5, Issue 83, Pages 67568-67573Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra13181b
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Funding
- International S&T Cooperation Program of China [2013DFA41670]
- National Natural Science Foundation of China [21376100]
- Guangdong Province Science and Technology Plan [2013B051000011]
- Fundamental Research Funds for the Central Universities of China [2014ZG0022]
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Nanofibrillar cellulose with low crystallinity (LNC) was fabricated by adding water into a cellulose solution, which was facile, efficient and environmentally friendly. A strong and translucent nanofibrillar cellulose film with low crystallinity (LNCF) was prepared from a LNC suspension by filtration. Transmission electron microscopy showed that LNC was individually separated whiskers with a length of 200 nm, a width of 20 nm. Structure characterization of LNC showed that the main crystal form of LNC was cellulose II and the crystallinity was as low as 22.3%. LNCF exhibited excellent optical transparency of 91.7% when the thickness of the film was 40 mu m. The tensile strength and young's modulus of LNCF reached 64.7 MPa and 3062.8 MPa respectively. Meanwhile, a nanofibrillar cellulose-graphene oxide composite (LNC-GO) with a layer by layer structure was obtained by mixing LNC with graphene oxide at the mass ratio of 1 : 1, and the tensile strength and young's modulus of LNC-GO were 84.3 MPa and 4406.2 MPa respectively.
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