2011 - Europe Direct Iasi

Description
EUROINVENT 2011
The invention deals with a method for the obtaining of
flax and hemp yarns grafted with a reactive cyclodextrin.
The proceeding supposes the wet spinning of flax and
hemp fibers simultaneously with the grafting of
monochlorotriazinyl- β- cyclodextrin on fibers. The
solution have to be introduced in the tank of the wet
spinning machine, at room temperature, in order to
impregnate the flax and hemp rovings for 5÷45 seconds.
After spinning the yarns must to be oven cured in order to
finalize the grafting. The removal of the excess of the
reactives is realized by repeated warm and cold washings
with distilled water until reaching a pH value of 6.5-7. The
materials grafting belongs to a pad-dry-cure technique.
After grafting, bioactive compounds will be included in
the nanocavities of the reactive product. Therefore, the
application fields for flax and hemp fibers may be
extended to the medical sector by obtaining ecological
products with new functional properties.
9.6.
Technology For Nanofibers Achievement Through
Title
Electrospinning Computerized System
Manea Liliana-Rozemarie, Cramariuc Bogdan, Cramariuc
Authors Oana, Cramariuc Radu, Lupu Iuliana Gabriela, Scârlet
Roxana
Institution Technical University ,,Gheorghe Asachi”
Patent no. RO File 9021/3.06.2010
From a large and international perspective the patent
suggests a new design of the process equipment:
modularity and automatic controllability. Modularity has
been implemented so that it should allow the systematic
variation of a large number of parameters influencing the
electrospinning process. The existing modular designs
usually allow the variation of a small number of
Description
parameters. In addition, there is to our knowledge no
reported system in which the position of the collector can
be adjusted to be both vertical and horizontal. Automatic
controllability allows the real time control of the
parameters and the simultaneous recording of the changes
in the fluid jet and macroscopic nanofiber morphology.
Again, there is to our knowledge no electrospinning
device incorporating all these features.
Class 9
113