@article {18484,
	title = {Cork processing with supercritical carbon dioxide: Impregnation and sorption studies},
	journal = {The Journal of Supercritical Fluids},
	volume = {104},
	year = {2015},
	month = {2015-07-06 00:00:00},
	pages = {251-258},
	publisher = {Elsevier},
	abstract = {<p style="text-align: justify;">The present study relates to the use of supercritical carbon dioxide (SCCO2) to modify the properties of\&nbsp;cork by incorporation of new molecules. The impact of SCCO2processing on the morphology and on the\&nbsp;mechanical properties was found to be negligible.The impregnation of disperse blue 14 (blue dye) on\&nbsp;cubic shaped cork samples of 5mm occurs progressively,is dependent of the processing conditions and\&nbsp;of the presence of lenticels and growth rings. The impregnation of the samples bulk was achieved with\&nbsp;processing at 10MPa and 313K for 16 h. The solubility and sorption of SCCO2 in the cork matrix was\&nbsp;measured using circular discs and the diffusion coefficients calculated to be on the order of 10-8 cm2/s,\&nbsp;the same order as for wood materials. This work demonstrates the feasibility of supercritical fluid technology\&nbsp;to impart new features to cork, which may lead to innovative architectural, outdoor and industrial\&nbsp;applications.</p>},
	keywords = {Carbon dioxide, Cork, Impregnation, Natural matrices, Sorption, supercritical fluids},
	doi = {10.1016/j.supflu.2015.06.024},
	url = {http://www.sciencedirect.com/science/article/pii/S0896844615300504},
	author = {Aroso, I. M. and Duarte, A. R. C. and Pires, R. A. and Mano, J. F. and Reis, R. L.}
}
