Plasma technologies application for building materials surface modification

Skripnikova

et al. 2018

KEM

Section: Plasma Treatment Systemmentioning

confidence: 99%

Modification of Wood Properties by Highly-Concentrated Plasma Flow

Skripnikova

et al. 2018

KEM

J. Phys. D: Appl. Phys.

“…Modification of materials surfaces, needed for plethora of practical applications, is one of the most important technological problems [1][2][3][4][5][6][7][8][9][10][11][12]. In particular, coating by foreign atom layers has always been a useful strategy to improve various surface characteristics or create new ones [4,9,[13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Effect of trampoline sputtering on surface morphology and coatings properties

Gabovich¹,

Semeniuk²,

Semeniuk³

2021

The collective trampoline ion-plasma effect was used to modify surface properties of metals, ceramics, silicon and carbon in a desired manner. The rough surfaces created by low-energy dense ion flows were demonstrated to include double-level hierarchical structures. Namely, the submicron and nanoscale peaks and valleys were found. The coating films were deposited by the nanoclusters emitted in the trampoline mode, as well as by plasma-enhanced chemical vapor deposition (PECVD) and physical vapor deposition (PVD) methods. The substrates were prepared by prior ion processing in the trampoline mode. Preliminary nanoscale texturing of surfaces substantially modified the interaction of ion-plasma flows with surfaces during the subsequent film formation by PVD and PECVD techniques. The so created rough surface showed the strong film adhesion and a 25%–50% faster film formation during ion-plasma deposition as compared to the case of a non-textured surface. The transfer of target material in the form of nanoclusters allowed obtaining dense defect-free micron-scale films. The submicron structure leads to the infrared and visible light trapping. The results were analyzed on the basis of the previously suggested qualitative model of the trampoline sputtering.

“…Plasma treatment is an attractive technique as it is flexible, quick, and contaminant‐free. However, the plasma treatment is usually performed at pressures below one atmosphere in the apparatus or in liquid medium, limiting the continuous process and the scale‐up in industry . In contrast, plasma created by corona discharge can work well at room temperature and normal atmosphere in the nitrogen, argon, and air.…”

Section: Introductionmentioning

confidence: 99%

Effects of corona treatment on morphology and properties of carbon based fillers/epoxy nanocomposites

Tafti¹,

Valipour

Mirjalili³

2018

Polymer Composites

Corona discharge treatment was applied to modify the surface of multi‐walled carbon nanotubes and carbon fibers. Successful functionalization was evaluated by ATR‐FTIR. Then, the neat and modified fillers were introduced into the epoxy matrix and nanocomposites containing different amounts of filler were obtained. The properties of neat epoxy and nanocomposites including morphology, thermal, mechanics, viscoelastic, and conductivity were evaluated. According to the results, it was found that the corona modification of fillers resulted in breaking of fillers agglomerates and improved their dispersion. The mechanical properties and thermal stability of modified samples were improved with respect to unmodified ones. To analyze the relationship between the interfacial interactions in the nanocomposites and tensile performance, a theoretical model germane to the mechanical behaviors of the nanocomposite was applied. It was found that strong interfacial interactions existed in the modified nanocomposites comparing the unmodified counterparts. Although the electrical conductivity of hybrid filler systems was increased, their tensile properties were reduced compared to CNTs/epoxy nanocomposites. POLYM. COMPOS., 39:E2298–E2304, 2018. © 2017 Society of Plastics Engineers