%0 Journal Article
%T Mechanical, Microstructure and Surface Characterizations of Carbon Fibers Prepared from Cellulose after Liquefying and Curing
%A Xiaojun Ma
%A Cheng Yuan
%A Xinyan Liu
%J Materials
%D 2014
%I MDPI AG
%R 10.3390/ma7010075
%X In this study, Cellulose-based carbon fibers (CBCFs) were prepared from cellulose after phenol liquefaction and curing. The characteristics and properties of CBCFs were examined by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The results showed that, with increasing carbonization temperature, the L a, L c, and L c/ d (002) of CBCFs increased gradually, whereas the degree of disorder R decreased. The 每OH, 每CH 2每, 每O每C每 and phenyl group characteristic absorption peaks of CBCFs reduced gradually. The cross-linked structure of CBCFs was converted into a graphite structure with a six-ring carbon network during carbonization. The surface of CBCFs were mainly comprised of C每C, C每O, and C=O. The tensile strength, carbonization yield and carbon content of CBCFs obtained at 1000 ∼C were 1015 MPa, 52%, and 95.04%, respectively.
%K cellulose
%K carbon fibers
%K surface characterization
%K mechanical properties
%K microstructure
%U http://www.mdpi.com/1996-1944/7/1/75