Surface Characterization and Morphology in Ar-Plasma-Treated Polypropylene Blend

Surface modifications using a radio frequency Ar-plasma treatment were performed on a polypropylene (PP) blend used for automotive bumper fascia. The surface characterization and morphology were examined. With increasing aging time, there was an increase in wettability, oxygen containing polar funct...

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Bibliographic Details
Published inMacromolecular research Vol. 17; no. 11; pp. 886 - 893
Main Authors Weon, Jong-Il, Choi, Kil-Yeong
Format Journal Article
LanguageKorean
Published 2009
Subjects
polypropylene
plasma
surface characterization
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Summary:Surface modifications using a radio frequency Ar-plasma treatment were performed on a polypropylene (PP) blend used for automotive bumper fascia. The surface characterization and morphology were examined. With increasing aging time, there was an increase in wettability, oxygen containing polar functional groups (i.e., C-O, C=O and O-C=O) due to oxidation, the amount of tale, and bearing depth and roughness on the PP surface, while there was a decrease in the number of hydrocarbon groups (i.e., C-C and C-H). AFM indicated that the Ar-plasma-treatment on a PP blend surface transforms the wholly annular surface into a locally dimpled surface, leading to an improvement in wettability. SEM showed that the PP layer observed in the non-plasma-treated sample was removed after the Ar-plasma treatment and the rubber particles were exposed to the surface. The observed surface characterization and morphologies are responsible for the improved wettability and interfacial adhesion between the PP blend substrate and bumper coating layers.
Bibliography:KISTI1.1003/JNL.JAKO200909659866682
ISSN:1598-5032
2092-7673