The porous structure of biodegradable scaffolds obtained with supercritical CO2 as foaming agent
作者： S. Blaeher , C. Calberg , G. Kerckhofs , A. Léonard , M. Wevers
DOI: 10.1016/S0167-2991(07)80088-7
关键词:
摘要: Abstract Poly(ɛ-caprolactone) foams were prepared, via a batch process, by using supercritical CO 2 as foaming agent. Their porous structure was characterized through helium and mercury pycnometry, scanning electron microscopy (SEM) X-ray microtomography observations coupled with image analysis. The pore size distributions obtained these two latter techniques show that the is more homogeneous when process performed under high saturation pressure (higher than 250 bars).
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