Task C2
Technology nanospider
The Technical University of Liberec got famous thanks to the patent of prof. Jirsák. It is the method of electrostatic fibrillization from wet surface. This method enabled the industrial production of nanofibre layers on ordinary textiles which led to significant improvement of ordinary textiles properties. The principle of these extraordinary fibres is ingenially simple. Letś start its exploration!
Task: Create your own nanofibre
Tools: Wimshurst induction electricity, 10 % solution of PVA (polyvinylalkohol), a glass rod, black sturdy paper, a lantern, copper conductors, a stand with electrodes
Procedure:
1)Insert a strip of the sturdy paper under the top electrode. Apply one drop of 10 % solution of PVA by the mean of the glass rod on the bottom electrode.
2)Spin the handle of Wimshurst induction electricity in the direction indicated by the arrow while lighting up the space between the electrodes. Beware! Do not touch the metal part of the equipment. You would suffer a small shock!
3)Observe the polymer drop, the weir of nanofibres even the small cones which creat on the drop.
4)After carrying out the experiment remove the rest of PVA from the bottom electrode. You can také the samle of nanofibres you produced.
Erasmus+ 76