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Surface modification of melamine formaldehyde resin particles in a stratified glow discharge in neon
Author(s) -
Karasev Viktor Yu.,
Dzlieva Elena S.,
Pavlov Sergey I.,
Matvievskaya Olga V.,
Polischuk Vladimir A.,
Ermolenko Maxmim A.,
Eikhval'd Alexey I.,
Gorbenko Anna P.
Publication year - 2019
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.201800145
Subject(s) - materials science , neon , plasma , glow discharge , scanning electron microscope , surface roughness , particle (ecology) , surface modification , analytical chemistry (journal) , argon , atomic physics , composite material , chemical engineering , physics , chemistry , chromatography , oceanography , quantum mechanics , engineering , geology
The paper presents the description of the change in size and structure with time of the surface of polymer particles of melamine formaldehyde injected as a dust component of a complex plasma formed in a stratified glow discharge in neon. The experiment was carried out in a specialized discharge chamber, equipped with a device for collecting particles from a dust trap. The analysis of the size and surface structure was carried out by scanning electron microscopy, which gives the original and the resulting surface views of the plasma‐processed particles. These profiles show the variation in surface roughness distribution under the action of the plasma. The time dependence of the particle diameter on plasma exposure was tracked. Data show that 25 min of exposure results in the dust particles losing a substantial part of their volume, which is accompanied by a decrease of the diameter by half. Our results coincide with previous data for smaller particles in similar plasma conditions.The particles used in this work are larger but still are able to levitate in a dust trap, and corresponding processes of size degradation and surface modification are extremely intense.