2011 - Europe Direct Iasi
2011 - Europe Direct Iasi
2011 - Europe Direct Iasi
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R.18.<br />
Title<br />
Authors<br />
Institution<br />
Description<br />
R.19.<br />
Title<br />
EUROINVENT <strong>2011</strong><br />
supported plug, over floating plug or over mandrel) or<br />
without inside guard.<br />
Depending on the ratio g / D (g-thickness of the wall,<br />
D-diameter of the processed tube), the tubes may have thin<br />
walls (g / D ≤ 0,21) or thick walls (g / D > 0,21). At the<br />
present moment, for the case of without inside guard<br />
drawing processes, of the thin walls tubes, made from cold<br />
hard malleable metallic materials and work hardenable,<br />
too, SONODRAW system will apply.<br />
The case of without inside guard drawing processes of the<br />
tubes, in SONODRAW system, means a processing with<br />
ultrasonic vibrations which are sent to the die, along the<br />
drawing direction; so, during the plastic deformation, it<br />
will obtain the “ultrasounds surface effect” or the<br />
“reduction of the metal-tool contact friction”. The wanted<br />
effect of the ultrasonic energy will be obtained when the<br />
ultrasounds will have high values of energy-ultrasounds<br />
longitudinal waves, as standing waves, with the die placed<br />
in a top position of the wave oscillation. The ultrasonic or<br />
ultrasounds waves are a variety of the elastic waves which<br />
have the frequency values between 16000 Hz and 10 10 Hz.<br />
Modifying starch based hydrogel hydrophilicity via "click"<br />
chemistry"<br />
A. Uliniuc 1,2 , M. Popa 1 , T. Hamaide 2<br />
1<br />
”Gheorghe Asachi” Technical University Iași,<br />
Faculty of Chemical Engineering and Environmental<br />
Protection, 2 Université de Lyon, Ingénierie des matériaux<br />
polymères, CNRS UMR 5223, Villeurbanne, France<br />
Biodegradable and biocompatible hydrogels are widely used for<br />
biomedical applications, as biomaterials for drug delivery<br />
applications. In the present study, in order to improve the<br />
macroscopic properties of our starch based hydrogels, we grafted<br />
PCL chains using “click” chemistry. The intermediate and final<br />
samples were characterized by FTIR, HR-MASS, TGA and<br />
swelling degree measurements.<br />
Correlation between morphology, magnetic and<br />
magnetotransport properties of electrodeposited [Fe/Pt]n<br />
multilayers<br />
Innovative Researches<br />
146
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