Study on atmospheric air glow discharge plasma generation based on multiple potentials and aramid fabric surface modification

Abstract

A method of forming large‐area glow discharge plasmas with good diffusivity in atmospheric air based on the composite network‐surface laminated electrode structure with multiple potentials is proposed. This method can enhance the intensity of the space electric field and generate glow discharge plasma under the condition that the voltage is lower than 1 kV. Through the alternating electric field, the charged particles diffuse from the surface of the electrode to the space to enhance the treatment of aramid fabric. According to the changes of surface morphology, contact angle and surface energy of aramid fabric, it can be seen that the surface roughness and surface energy of the material treated by plasma are significantly improved. After 30 s of treatment, the contact angle decreases by 83.85° and the surface energy increases 3.4 times. This method has the advantages of low discharge voltage, good discharge uniformity, good material treatment effect, and so forth. It has good application prospects for the industrialization of aramid fabric surface modification with high efficiency.

Application of Cold Plasma in Nanofillers Surface Modification for Enhancement of Insulation Characteristics of Polymer Nanocomposites: A Review

“…Only a limited number of studies are concerned about the discharge mechanism toward the effectiveness of insulation performances. Glow plasma discharge is a uniform discharge, while filamentary plasma discharge is a non-uniform discharge of gases [122]. Uniform discharge is expected to overcome incompatibility issues effectively compared to non-uniform discharge.…”

Surface modification of aramid fiber by cascade process with atmospheric plasma and TDI grafting

“…Chemical methods include acid/base assisted grafting [9][10][11], direct fluorination [12,13], dopamine and polyphenols surface modification [14] and isocyanate groups grafting [15,16], etc. Physical methods include plasma treatment [17][18][19], γ-ray irradiation [20,21], ultraviolet initiation [22], coating method [23,24] and surface nanostructures construction [25][26][27], etc. Haijuan et al [15] and Penn and Jutis [16] used different diisocyanates to modify the surface of AF, both of which improved the interfacial bonding strength of the composites.…”

Flexible and conductive meta-aramid fiber paper with high thermal and chemical stability for electromagnetic interference shielding

“…Among these methods, electroless plating is the most widely used one due to simple operation, uniform coating and low cost [27][28][29]. However, as the surface chemical energy of meta-aramid fibers is very low and the reaction activity is very weak [30,31], direct electroless plating of silver nanoparticles on meta-aramid is very difficult. Therefore, an effective surface modification of meta-aramid fibers is required before electroless plating.…”