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Plasma Chemistry and Plasma Processing

, Volume 28, Issue 3, pp 391–404 | Cite as

Migration of Processing Oils of Thermoplastic Rubber Treated with RF Plasma

  • Ana B. Ortíz-Magán
  • M. Mercedes Pastor-Blas
Original Paper

Abstract

The surface modifications produced by a RF plasma treatment on a thermoplastic styrene–butadiene–styrene rubber–SBS—with a considerable amount of processing oils in its formulation (TRO) have been studied and compared to the modifications produced on an oil-free SBS rubber (TRF). The modifications produced by the plasmas on the rubber surface depended on the nature of the gas used to generate the plasma. Thus, argon plasma favored the migration of processing oils to the TRO rubber surface, producing a weak oily layer that prevented interaction of rubber with a polyurethane adhesive. On the other hand, oxygen and carbon dioxide plasmas produced important ablation of the rubber surface which resulted in a partial (CO2 plasma) or total (O2 plasma) removal of processing oils from the rubber surface and the creation of polar moieties that increased adhesion of the rubber surface towards a polyurethane adhesive.

Keywords

Low pressure gas RF plasma Oil-containing thermoplastic styrene-butadiene rubber Surface treatment Surface energy ATR-IR spectroscopy SEM XPS T-peel strength 

Notes

Acknowledgement

Authors acknowledge Prof. J.M. Martín-Martínez for his comments on the interpretation of some data.

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Ana B. Ortíz-Magán
    • 1
  • M. Mercedes Pastor-Blas
    • 1
  1. 1.Department of Inorganic ChemistryUniversity of AlicanteAlicanteSpain

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