Cold plasma treatments

R. Manory and A. GriU, Protective Coatings of Metal Sufaces by Cold Plasma Treatments, NASA Technical Memorandum 87152, National Technical Information Service, Springfield, Va., 1985. 

The same effects are reached by cold plasma treatment. Depending on the type and the nature of the used gases, a variety of surface modification can be achieved. 

Some physical techniques can be classified into flame treatments, corona treatments, cold plasma treatments, ultraviolet (UV) treatment, laser treatments, x-ray treatments, electron-beam treatments, ion-beam treatments, and metallization and sputtering, in which corona, plasma, and laser treatments are the most commonly used methods to modify silicone polymers. In the presence of oxygen, high-energy-photon treatment induces the formation of radical sites at surfaces these sites then react with atmospheric oxygen forming oxygenated functions. 

Fig. 5.12. Schematic representation of a continuous cold plasma treatment. After Garbassi and Occhiello...

Another useful coating technique is based on plasma treatments that can change the properties of the textile surface radically. Hot plasma treatments are mainly used for the modification of materials that are stable at high temperature such as metals and ceramics and therefore are not suitable for the treatment of polymer-based materials such as textiles. However, cold plasma treatments can be carried out at temperatures ranging from ambient up to 100 °C and can be used for the treatment of textile like materials. These treatments are basically of two types plasma treatments with... 

Ceria, A., Rovero, G., Sicardi, S., Ferrero, R, 2010. Atmospheric continuous cold plasma treatment thermal and hydrodynamical diagnostics of a plasma jet pilot unit. Chem. Eng. Process. Process Intensif 49, 65-69. 

Poletti, G., Orsini, R, Raffaele-Addamo, A., Riccardi, C., SeUi, E., 2003. Cold plasma treatment of PET fabrics AFM surface morphology characterization. Appl. Surf. Sci. 219, 311-316. 

Fetykov, A.L, et al. The effectiveness of cold plasma treatment of diabetic feet syndrome, complicated hy purulo-necrotic process. In 2nd International Conference on Plasma Medicine, San Antonio, TX, USA (2009)... 

Su J, Tao X, Wei Y, Zhang Z, Liu L, The continuous cold-plasma treatment of the graphite fibre surface and the mechanism of the modification of the interfacial adhesion, Ishida H ed.. Interfaces in polymer ceramic and metal matrix composites, Elsevier Science Publishing Co. Inc., New York, 269-277, 1988. 

A physical treatment changes the structural and stuface properties of the fiber and thereby treated fibre influences the mechanical properties of composites. Physical methods involve heat treatment, cold plasma treatment, surface fibrillation, electric discharge, and gamma radiation treatment. 

Eor pretreatment of sisal fiber chemicals such as alkali (NaOH), permanganate (KMn04), acetylation, peroxide (BPO and DCP), isocyanate treatment, stearic acid, silane, benzoylation [79], maleic anhydride modification, PPG-TDI [34, 60, 61], and cold-plasma treatment are used [76, 118]. 

V.V. Yaminsky, B.W. Ninham, R.M. Pashley, Interaction between surfaces of fused silica in water. Evidence of cold fusion and effects of cold plasma treatment Langmuir 14(12), 3223-3235 (1998). doi 10.1021/la9713762... 

The cold-plasma treatment improved the fibers superficial properties, such as adhesion of the epoxydic resin for the realization of composite materials [419 23] and improved wettability and rewettability [424-426]. 

Sinha, E. (2009) Effect of cold plasma treatment on macromolecular structure, thermal and mechanical behavior of jute fiber. J. Ind. Text., 38, 317-339. 

Mechanical strength of cold plasma treated PET fibers were shown to degrade (SEM) after cold plasma treatment [402]. Single fibers were... 

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