The Influence of Different Plasma Cell Discharges on the Performance Quality of Surgical Gown Samples

Abstract

An experimental study was performed on a low-density plasma discharge using two different configurations of the plasma cell cathode, namely, the one mesh system electrodes (OMSE) and the one mesh and three system electrodes (OMTSE), to determine the electrical characteristics of the plasma such as current–voltage characteristics, breakdown voltage (VB), Paschen curves, current density (J), cathode fall thickness (dc), and electron density of the treated sample. The influence of the electrical characteristics of the plasma fluid in the cathode fall region for different cathode configuration cells (OMSE and OMTSE) on the performance quality of a surgical gown was studied to determine surface modification, treatment efficiency, exposure time, wettability property, and mechanical properties. Over a very short exposure time, the treatment efficiency for the surgical gown surface of plasma over the mesh cathode at a distance equivalent to the cathode fall distance dc values of the OMTSE and for OMSE reached a maximum. The wettability property decreased from 90 to 40% for OMTSE over a 180 s exposure time and decreased from 90 to 10% for OMSE over a 160 s exposure time. The mechanisms of each stage of surgical gown treatment by plasma are described. In this study, the mechanical properties of the untreated and treated surgical gown samples such as the tensile strength and elongation percentage, ultimate tensile strength, yield strength, strain hardening, resilience, toughness, and fracture (breaking) point were studied. Plasma had a more positive effect on the mechanical properties of the OMSE reactor than those of the OMTSE reactor.

Theoretical and Experimental Study of the Effect of Plasma Characteristics on the Mechanical Properties of Ihram Cotton Fabric

“…Figure 1 displays a schematic diagram of the electrical circuit utilized in the author's previous experiments to induce a DC glow discharge between two various plasma cell electrode configurations that occur inside of an evacuated stainless-steel chamber, with glass windows, to a pressure of 7 mTorr using a two-stage rotary pump [15,16]. Through a needle valve, high-purity gas was injected into the chamber.…”

“…(3.55 × 1016 )2 Q i Q e ] −n e n + (3.55 × 10 16 Q i ) 2 (7.64 kT i kT e ) (3.55 × 10 16 ) 2 Q i Q e ] − n e n + (3.55 × 10 16 Q i ) 2 (7.64 kT i kT e ) 3.1.2. Axial Distance Less Than the Radial Distance (L < R)…”

Sustainable Development Solutions for the Medical Waste Problem Using Thermal Plasmas

“…Plasmas are generally divided into two large groups. The first is the cold, non-thermal or non-equilibrium plasma, which was studied in our previous articles for applications such as etching for industrial applications [1,2], disinfection applications [3,4], environmental process, textile treatment [5,6], and nano-technology applications [7]. The second group is the hot, thermal or equilibrium plasma used in many applications which were studied and outlined in our previous articles on using the plasma treatment system (PST) to convert waste to energy (WTE) using, e.g., municipal solid waste (MSW) and scrap tires [8,9].…”

Non-Thermal Plasma Treatment Coupled with a Photocatalyst for Antimicrobial Performance of Ihram Cotton Fabric

“…Plasma treatment, however, is a new fashion technology applied to textiles as an environmentally friendly technique. This technique is attractive, as it allows the impregnation of textiles and fibers with anti-microbial agents, where in recent years, the study of the impact parameters of plasma discharges on medical applications such as the performance quality of surgical gown samples has gained significant traction to produce anti-microbial textiles [ 12 , 13 ]. Coatings can be applied to textiles via many new techniques, and anti-microbial textiles have gained considerable importance in treating objects that are touched or breathed on by people or that exist in crowded regions or in humid environments [ 14 , 15 ].…”