Effect of Cellulose Crystal Content on the Mechanical Property of Nano-Crystalline Cellulose/Lignin Composite Fibrous Film

Abstract:

Lignin is abundant in nature and it is good materials for carbon fiber, but the mechanical strength of the carbon fiber prepared by the lignin extracted from the paper mill waste is low. In this study, nanocellulose whisker (NCW) was used to reinforce lignin and the NCW/lignin composite fibrous film was prepared by electrospinning. By scanning electron microscopy (SEM), single fiber strength tester, the morphologies and mechanical properties of the composite films were researched; the influence of the mass fraction of NCWs on the mechanical property of lignin fibrous film was studied. In the range of this experiment, the results show that adding NCWs into lignin improved the spinnability of lignin, with the increase of the content of NCWs, the mechanical property of lignin fibrous film increased, but there is an optimum content of NCW and the NCWs must be dispersed evenly in the lignin. As the content of NCW increased from 0.3% to 5.0%, the tensile strength and modulus of NCW/lignin fibrous film increased, but the elongation at break decreased. The spinnability of lignin will be worsen if the contend of NCW was more than 5.0%.

• Periodical: Key Engineering Materials (Volume 727)
• Pages: 527-531
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.727.527
• Online since: January 2017
• Authors: Xin Yi Jin, Cai Wei He, Xin Ran Liu, Xue Jiao Yan, Qiao Zhen Yu
• Keywords: Cellulose Whisker, Electrospinning, Fibrous Film, Lignin

References

[1] S.J. Ding, L.J. Jiang and Z.Y. Sha: Preparation of poly-acrylonitrile precursor for carbon fiber technology advances, High-tech fiber and its application, Vol. 28 (2003) No. 6, p.15. (In China).

[2] Z.Y. Zhou: Research progress of lignin fiber, China fiber inspection, Vol. 3 (2014), p.126. (In China).

[3] Y. W. Kang, Y. J. Ahn, S. H. Lee, J. H. Hong, M. K. Ku, H. S. Kim: Lignocellulosic nanofiber prepared by alkali treatment and electrospinning, Fibers and Polymers, Vol. 14 (2013)No. 4, p.530.

DOI: 10.1007/s12221-013-0530-8

[4] C.L. Wu: Lignin fiber, FRP composite material, Vol. 6 (2002), p.43. (In China).

[5] D.Y. Liu, X.W. Yuan, B. C. D: The effects of cellulose nano-whiskers on electrospun poly(lactic acid) nanofibers, Journal of Materials Science, Vol. 47 (2012) No. 7, p.3159.

[6] Z.X. Lu, L.W. Fan and H.Y. Zheng: Preparation, characterization and optimization of nano-cellulose whiskers by simultaneously ultrasonic wave and microwave assisted, Bio-resource Technology, Vol. 146 (2013), p.82.

DOI: 10.1016/j.biortech.2013.07.047

[7] Y. Liu, B.H. Luo, R.P. Chen, S.Y. Zhou, Y.J. Huang and C.R. Zhou: Nano-cellulose whisker reinforced toughened poly (L-lactic acid) preparation and characterization of composite materials, Acta Materiae Compositae Sinica, Vol. 32 (2015), p.1703.