Surface Modification of Wool Fibers by Ar-plasma and their Anti-felting Properties

Wool fiber was modified using ecologically acceptable ozone-assisted treatment (ECO) in this study. Chemical and mechanical analysis of the treated samples compared with the untreated and Basolan○,R88 treated ones are reported. An atom force microscope (AFM) results show that the crimple was generated on the surface of ECO treated wool fiber and the peak-to-valley decreased slightly. However, Fourier transforms infrared spectra (FTIR) results suggest the absorbency and the oxidation of disulfide bonds increased after the ECO treatment, especially at 1024cm-1. The crystallinity of the treated wool fiber slightly increased based on the X-ray results. The treatment also led to reduction in strength of the wool fiber.

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Surface modification and etch process optimization of fused silica during reaction CHF3–Ar plasma etching

Optik ◽

10.1016/j.ijleo.2015.10.046 ◽

2016 ◽

Vol 127 (1) ◽

pp. 206-211 ◽

Cited By ~ 9

Author(s):

Laixi Sun ◽

Huang Jin ◽

Xin Ye ◽

Hongjie Liu ◽

Fengrui Wang ◽

...

Keyword(s):

Surface Modification ◽

Process Optimization ◽

Plasma Etching ◽

Fused Silica ◽

Ar Plasma

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Physical Properties of Fe3Si Films Coated through Facing Targets Sputtering after Microwave Plasma Treatment

Coatings ◽

10.3390/coatings11080923 ◽

2021 ◽

Vol 11 (8) ◽

pp. 923

Author(s):

Nattakorn Borwornpornmetee ◽

Peerasil Charoenyuenyao ◽

Rawiwan Chaleawpong ◽

Boonchoat Paosawatyanyong ◽

Rungrueang Phatthanakun ◽

...

Keyword(s):

Contact Angle ◽

Surface Modification ◽

Physical Properties ◽

Plasma Treatment ◽

Microwave Power ◽

Microwave Plasma ◽

Hydrophobic Surface ◽

Hydrophilic Surface ◽

Ar Plasma ◽

Oxide Group

Fe3Si films are deposited onto the Si(111) wafer using sputtering with parallel facing targets. Surface modification of the deposited Fe3Si film is conducted by using a microwave plasma treatment under an Ar atmosphere at different powers of 50, 100 and, 150 W. After the Ar plasma treatment, the crystallinity of the coated Fe3Si films is enhanced, in which the orientation peaks, including (220), (222), (400), and (422) of the Fe3Si are sharpened. The extinction rule suggests that the B2–Fe3Si crystallites are the film’s dominant composition. The stoichiometry of the Fe3Si surfaces is marginally changed after the treatment. An increase in microwave power damages the surface of the Fe3Si films, resulting in the generation of small pinholes. The roughness of the Fe3Si films after being treated at 150 W is insignificantly increased compared to the untreated films. The untreated Fe3Si films have a hydrophobic surface with an average contact angle of 101.70°. After treatment at 150 W, it turns into a hydrophilic surface with an average contact angle of 67.05° because of the reduction in the hydrophobic carbon group and the increase in the hydrophilic oxide group. The hardness of the untreated Fe3Si is ~9.39 GPa, which is kept at a similar level throughout each treatment power.

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