Manufacturing Process of a Novel Biomass Composite Inspired from Cellular Structure of Wood

A novel biomass composite inspired from wood porous structure was manufactured by impregnating vinyl monomer into wood cellular structure under vacuum conditions, and initiating the monomer for in situ polymerization through a thermal treatment. The vacuum condition was studied, and the mechanical properties of the composite were also tested. SEM observation shows that polymer generated in the wood porous structure, and strongly interacted with wood matrix; and the polymer content increased with vacuum value increasing. FTIR indicates that polymer grafted onto wood matrix, resulting chemical complex between them. The rate of monomer loading increased with increasing vacuum value and time, accordance with rate of polymer loading. The compression strength and modulus of elasticity linearly increased with the increasing rate of polymer loading. Results indicate that the novel biomass composite possesses good mechanical properties capable of applying in the fields of construction, traffic and so forth.




References:
[1] J.-Z. Zhang, J.-G. Wang, J.-J. Ma. "Porous structures of natural materials
and bionic design," Journal of Zhejiang University - Science A, vol. 6,
pp.1095-1099, 2005.
[2] T.-C. Wang, T.-X. Fan, D. Zhang, T.-L. Zhou, G.-D. Zhang, D.-S. Xiong.
"Microstructures and thermal properties of aluminum matrix composites
based on wood templates," Journal of Porous Materials, published
online, 2009.
[3] C. A. S. Hill, S. C. Forser, M. R. M. Farahani, M. D. C. Hale, G. A.
Ormondroyd, G. R. Williams. "An investigation of cell wall micropore
blocking as a possible mechanism for the decay resistance of anhydride
modified wood," International Biodeterioration & Biodegradation, vol.
55, pp. 69-76, 2005.