Characterization of Microcellular Biodegradable Polymeric Foams Produced from Supercritical Carbon Dioxide Solutions

2005 ◽  
Vol 44 (6) ◽  
pp. 1795-1803 ◽  
Author(s):  
S. Cotugno ◽  
E. Di Maio ◽  
G. Mensitieri ◽  
S. Iannace ◽  
G. W. Roberts ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Polymeric Foams ◽  
Supercritical Carbon

Preparation and characterization of polypropylene/waste ground rubber tire powder microcellular composites by supercritical carbon dioxide

2008 ◽  
Vol 16 (5) ◽  
pp. 404-410 ◽  
Author(s):  
Zhen Xiu Zhang ◽  
Sung Hyo Lee ◽  
Jin Kuk Kim ◽  
Shu Ling Zhang ◽  
Zhen Xiang Xin
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Rubber Tire ◽  
Ground Rubber ◽  
Supercritical Carbon

Microcellular Polymeric Foams (MPFs) Generated Continuously in Supercritical Carbon Dioxide

2000 ◽  
Vol 629 ◽  
Author(s):  
Srinivas Siripurapu ◽  
Yvon J. Gay ◽  
Joseph R. Royer ◽  
Joseph M. DeSimone ◽  
Saad A. Khan ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Vinylidene Fluoride ◽  
Amorphous Polymer ◽  
Extrusion Process ◽  
Operating Conditions ◽  
Polymeric Foams ◽  
Poly Vinylidene Fluoride ◽  
Cell Densities ◽  
Supercritical Carbon

ABSTRACTMicrocellular polymeric foams (MPFs) hold tremendous promise for engineering applications as substitutes to their solid analogs in light of reduced manufacturing/materials costs and improved properties. We present a two-part study addressing the generation of such materials in the presence of supercritical carbon dioxide (scCO2). The first part describes the production of polystyrene MPFs in a continuous extrusion process, as well as the effect of operating conditions such as temperature and CO2 concentration on foam morphology. The second part discusses microcellular foaming of poly (vinylidene fluoride) (PVDF), a semicrystalline polymer, via blending with the amorphous polymer poly (methyl methacrylate) PMMA. Foams of pure PVDF possess ill-defined morphologies, whereas those of PVDF-PMMA blends show an improvement with cell sizes on the order of 10 mm or less and cell densities in excess of 109 cells/cm3.

Characterization of drug delivery particles produced by supercritical carbon dioxide technologies

2017 ◽  
Vol 128 ◽  
pp. 244-262 ◽  
Author(s):  
Onanong Nuchuchua ◽  
M. Reza Nejadnik ◽  
Sebastiaan C. Goulooze ◽  
Nataša Jovanović Lješković ◽  
Hayley A. Every ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Drug Delivery ◽  
Supercritical Carbon Dioxide ◽  
Supercritical Carbon

Preparation and Characterization of Microcellular Polystyrene Foams Processed in Supercritical Carbon Dioxide

1998 ◽  
Vol 31 (14) ◽  
pp. 4614-4620 ◽  
Author(s):  
Kelyn A. Arora ◽  
Alan J. Lesser ◽  
Thomas J. McCarthy
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Supercritical Carbon

High-pressure NMR characterization of triacetyl-β-cyclodextrin in supercritical carbon dioxide

2008 ◽  
Vol 47 (2) ◽  
pp. 133-141 ◽  
Author(s):  
G. I. Ivanova ◽  
E. R. Vão ◽  
M. Temtem ◽  
A. Aguiar-Ricardo ◽  
T. Casimiro ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Supercritical Carbon Dioxide ◽  
Nmr Characterization ◽  
Supercritical Carbon

Synthesis and characterization of ZnO/PET composite using supercritical carbon dioxide impregnation technology

2011 ◽  
Vol 42 (7) ◽  
pp. 757-761 ◽  
Author(s):  
Marcos R. Mauricio ◽  
Fernando C.G. Manso ◽  
Marcos H. Kunita ◽  
Daniel S. Velasco ◽  
Antonio C. Bento ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Synthesis And Characterization ◽  
Supercritical Carbon
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