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Surface hardness improvement of PMMA by low‐energy ion irradiation and electron irradiation
Author(s) -
Sakurabayashi Yuya,
Masaki Takahiro,
Iwao Toru,
Yumoto Motoshiga
Publication year - 2011
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.10350
Subject(s) - x ray photoelectron spectroscopy , nanoindentation , irradiation , materials science , hardness , ion , surface layer , electron , surface modification , layer (electronics) , composite material , electron beam processing , analytical chemistry (journal) , chemical engineering , chemistry , organic chemistry , physics , quantum mechanics , nuclear physics , engineering
Surface modification of PMMA (polymethylmethacrylate) was carried out by irradiation with low‐energy ions and/or electrons, which is expected to improve the surface hardness by introduction of a thin modified layer. The surface hardness was measured by the nanoindentation test. To clarify the structure and the properties of the modified layer, depth profiles of composition and chemical bonds were analyzed using XPS (X‐ray photoelectron spectroscopy). The formation of a cross‐linking structure that contributed to the surface hardness was analyzed by the dyeing method. From these results, it was confirmed that the surface hardness increased and a cross‐linking structure was present. It is suggested that the existence of the structure brought about the increase of surface hardness, showing the utility of the dyeing method. © 2011 Wiley Periodicals, Inc. Electron Comm Jpn, 94(8): 19–26, 2011; Published online in Wiley Online Library ( wileyonlinelibrary.com ). DOI 10.1002/ecj.10350