Effect of scCO2 sorption capacity on the total amount of borage oil loaded by scCO2 impregnation/deposition into a polyurethane-based wound dressing
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- 作者：C.V. da Silvaa ; V.J. Pereiraa ; P.T.V. Rosab ; E.C.M. Cabral-Albuquerquea ; S.A.B. Vieira de Meloa ; G.M.N. Costaa ; A.M.A. Diasc ; adias@eq.uc.pt" class="auth_mail" title="E-mail the corresponding author ; H.C. de Sousac ; M.E.M. Bragac ; marabraga@eq.uc.pt" class="auth_mail" title="E-mail the corresponding author
- 关键词：scCO2 sorption ; scCO2 impregnation/deposition ; Borage oil ; Polyurethane ; Mass transfer
- 刊名：The Journal of Supercritical Fluids
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：115
- 期：Complete
- 页码：1-9
- 全文大小：1070 K
文摘
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A gravimetric method was used to measure the scCO2 sorption capacity in a commercial polyurethane-based wound dressing.
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Experimental data were modeled using both numerical and analytical solution of Fick's second law, with deviations below 10% in both cases.
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The highest scCO2 sorption capacity (∼70%) was achieved at the lowest temperature and highest solvent density studied (308 K and 850 kg m−3).
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The highest borage oil loaded yield was observed at the highest temperature and solvent density studied (328 K and 850 kg m−3).
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The total amount of borage oil loaded into PUR mainly depends on its solubility in scCO2.