Modification of surface properties of plastic filaments in a plasma three-electrode tube

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Abstract

The modification of surface properties of thermoplastic polymers, in particular, plastic filaments of Polylactic Acid (PLA), by their treatment in a plasma three-electrode tube with low-temperature argon plasma of a volumetric independent glow discharge with a dielectric barrier at atmospheric pressure has been experimentally demonstrated. A PLA plastic filament is continuously pulled at a velocity of 4 mm/s through the discharge plasma at a discharge current of 0.7–3 mA. The water contact wetting angle is shown to decrease from 8° to 44°, the free surface energy is shown to increase from 32.28 to 56.84 mJ/m2.

About the authors

A. P. Semyonov

Institute of Physical Materials Science SB RAS

Email: baibat@mail.ru
Ulan-Ude, Sakhyanova, 6, 670047, Russia

B. B. Baldanov

Institute of Physical Materials Science SB RAS

Email: baibat@mail.ru
Ulan-Ude, Sakhyanova, 6, 670047, Russia

Ts. V. Ranzhurov

Institute of Physical Materials Science SB RAS

Author for correspondence.
Email: baibat@mail.ru
Ulan-Ude, Sakhyanova, 6, 670047, Russia

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