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Adhesion of Thin CVD Films on Pulsed Plasma Pre‐Treated Polypropylene
Author(s) -
Behm Henrik,
Bahroun Karim,
Bahre Hendrik,
Kirchheim Dennis,
Mitschker Felix,
Bibinov Nikita,
Böke Marc,
Dahlmann Rainer,
Awakowicz Peter,
Hopmann Christian,
Winter Jörg
Publication year - 2014
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.201300128
Subject(s) - materials science , polypropylene , x ray photoelectron spectroscopy , adhesion , argon , bond strength , polymer , composite material , coating , thin film , layer (electronics) , plasma , surface energy , oxygen , surface modification , chemical engineering , analytical chemistry (journal) , adhesive , nanotechnology , chemistry , chromatography , organic chemistry , physics , quantum mechanics , engineering
The adhesion of thin CVD films on polyolefins is often critical due to the low surface free energy of the polymers. In this study, injection moulded PP samples are produced and investigated. The samples are treated in very well‐characterized pulsed plasmas before a HMDSO‐based coating is applied. The resulting bond strength is analyzed using pull‐off tests. The fractured interfaces are characterized with XPS. Oxygen and argon plasma pre‐treatments of the PP samples result in a bond strength improvement by a factor of about 2. Comparing oxygen and argon pre‐treatments at equal ion fluences to the surface, it can be shown that the bond strength between CVD‐coating and polymer is similar.