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Atmospheric‐Air Plasma Surface Modification of Polyethylene Powder
Author(s) -
Píchal Jan,
Hladík Jan,
Špatenka Petr
Publication year - 2009
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.200800080
Subject(s) - surface modification , materials science , atmospheric pressure , atmospheric pressure plasma , dielectric barrier discharge , polyethylene , plasma , plasma cleaning , composite material , dielectric , chemical engineering , analytical chemistry (journal) , chemistry , chromatography , optoelectronics , oceanography , physics , quantum mechanics , engineering , geology
The surface modification of polyethylene powder using a plasma reactor based on a dielectric barrier discharge in air at atmospheric pressure and ambient temperature is investigated. The process is inexpensive, and the necessity of any vacuum equipment and technical gases is alleviated. The efficiency of the modification process was successfully demonstrated by ESCA measurements that proved formation of new functional groups at the modified powder surface. The modification effect was also evaluated by means of dynamic capillarity rising measurements. Powder capillarity tests proved significant powder capillarity changes. The reduction of the modification effect was also limited (max. reduction of about 20% during 1 100 d after the modification date).