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UPN Ref Technology
196 SUPERCRITICAL FLUIDS
Supercritical fluids are involved in a wide variety of applications which have shown a significant progress in recent years. Many industrial sectors are concerned including cosmetics, pharmaceutics, materials, chemistry or energy. Other areas are in rapid development such as the cleaning of mechanical parts or the surface preparation of microelectronics. It should be noted that water (Tc = 374 °C, Pc = 221 bars), which critical point is higher than that of CO2 (Tc = 31 °C, Pc = 74 bars), is nevertheless very much studied as a reaction medium, finding applications in the synthesis of nanoparticles and the recovery and treatment of waste.
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54 Elastic fast swelling hydrogel
A fast responsive superporous hydrogel technology. The crosslinking is maintained by hydrolyzable diacrylate polymer and vinyl modified polypeptide. As these crosslinks break down, the material will start to fall apart and shrink. In addition, this superporous hydrogel is elastic (mechanically resilient) as it can be stretched more than 100% of its original size.
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39 Inorganic and organic nanofibrous materials
Novel nanofibrous materials have been developed such as ceramic nanofibers and organic nanofibers that have a plurality of applications.
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6 Process for industrial production of nanoparticles using supercritical water process
The use of hydrothermal conditions allows the very fast synthesis of high added value nanoparticles from an aqueous solution of metallic salts. This technology has proven being very versatile versus composition, synthesizing very high quality NP at both lab and pilot scale, with high reproducibility.The process includes a wall-free mixing technology which brings stability of the reaction volume and allows a fully continuous operation of the production line.
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