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Laboratory Scale Systems for the Plasma Treatment and Coating of Particles
Author(s) -
Michl Thomas D.,
Coad Bryan R.,
Hüsler Amanda,
Vasilev Krasimir,
Griesser Hans J.
Publication year - 2015
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201400141
Subject(s) - materials science , coating , plasma , polystyrene , contact angle , trichlorosilane , superhydrophobic coating , chemical engineering , retrofitting , composite material , nanotechnology , polymer , optoelectronics , silicon , physics , structural engineering , quantum mechanics , engineering
We here report two reactor designs for the efficient and uniform plasma treatment of particles: 1) retrofitting an existing plasma reactor with a loudspeaker for agitation (LPR) and 2) adapting a rotary evaporator by adding custom electrodes (RPR). Both designs offer versatility, low building cost, convenience of use, flexibility, facile vacuum sealing and achieve effective agitation and coating of particles. The latter was exemplified by plasma polymerizing perfluorooctane (PFO) onto micron‐sized polystyrene particles. The coated particles were evaluated by XPS, ToF‐SIMS and water contact angle measurement to compare and contrast the resulting PFO plasma coatings (PFOpp) between the two reactor designs. The highest fluorine to carbon ratio (1.85, Teflon = 2) was achieved at a pressure of 100 mTorr in the RPR.