Hydrophilization of outer and inner surfaces of Poly(vinyl chloride) tubes using surface dielectric barrier discharges generated in ambient air plasma

Abstract

An atmospheric pressure ambient air plasma technique is developed for technically simple treatment of inner and/or outer surfaces of plastic tubes and other hollow dielectric bodies. It is based on a specific type of surface dielectric barrier discharge generating visually diffuse plasma layers along the treated dielectric surfaces using water‐solution electrodes. In the present study, the technique is used for surface activation of PVC tubes. XPS analyses of treated surfaces are performed and the aging effect on the treated PVC surface is studied.

Design and evaluation of plasma polymer deposition on hollow objects by electrical plasma generated from the liquid surface

“…The motion of the plasma ring (on the Figure visualized as red arrow) was achieved by a mechanism on the principle of two connected vessels (Figures g and h). Better description of apparatus can be found here . While the level of working electrode liquid was decreased, it also led to the movement of plasma ring generated from the surface of liquid electrode.…”

“…Better description of apparatus can be found here. [34] While the level of working electrode liquid was decreased, it also led to the movement of plasma ring generated from the surface of liquid electrode. So, it was possible to treat the surface of PTFE tube continuously and homogeneously along its length.…”

Plasma treatment of polyethylene tubes in continuous regime using surface dielectric barrier discharge with water electrodes

“…The water based plasmas have also demonstrated their potential for surface modification of polymer materials [7][8][9]. Though, it have been proved already that the plasma discharge of discharge could be used for treatment of different polymer materials [10,11], the challenge of continual treatment of long objects was still present. U.S. patent application 20030098085 [12] describes the treatment of outer surface of automotive fuels hose, using a low-pressure Ar plasma generated by a glow discharge.…”

“…Combining their basic features, a new type of SDBD generating thin layers of plasma which propagate along the treated polymer surfaces [10,11,14] was developed. This technique was aimed to achieve uniform atmospheric pressure plasma treatment of surfaces of polymeric tubes and other hollow bodies.…”

Low-temperature plasmas in contact with liquids—a review of recent progress and challenges

“…In principle, the liquid may be one of the main electrodes as As mentioned earlier, there are numerous comprehensive reviews of the plasma liquid systems, so here we present some constructions that attracted attention in the last half of the decade. Pavliňák et al constructed surface DBD with two liquid electrodes [98][99][100][101]. The construction presented in figure 5 is shown to be efficient in surface treatments of dielectric hollow bodies, the tubes especially.…”