Characterisation of microcellular foams produced from semi-crystalline PCL using supercritical carbon dioxide

被引：0
|
作者：
Jenkins, M.J. [1 ]
Harrison, K.L. [1 ]
Silva, M.M.C.G. [3 ]
Whitaker, M.J. [2 ]
Shakesheff, K.M. [2 ]
Howdle, S.M. [3 ]
机构：
[1] Metallurgy and Materials, School of Engineering, University of Birmingham, Edgbaston, B15 2TT, United Kingdom
[2] School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
[3] School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
来源：
European Polymer Journal | 2006年 / 42卷 / 11期
关键词：
Microcellular foams were produced from polycaprolactone (PCL) using a method based on the rapid release of supercritical CO2. The average pore size in the structure was found to vary with the selected vent time and the final microstructure was a combination of open and closed cells. Thermal analysis showed that the degree of crystallinity of all foams was in the region of 70%. This was found to be consistent with the observation of lamellar textures on the inner surface of the pores. There was also a pronounced decrease in compressive modulus with increasing vent time and average pore size. © 2006 Elsevier Ltd. All rights reserved;
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页码：3145 / 3151
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