Plasma Surface Modification of Polycarbonate and Poly(propylene) Substrates for Biomedical Electrodes

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Paulo Pedrosa (Author) FEUP; Jean-Marie Chappé (Author) Other; Carlos Fonseca (Author) FEUP; Ana Vera Machado (Author) Other; João Miguel Nóbrega (Author) Other; Filipe Vaz (Author) Other

Journal

Title: Plasma Processes and Polymers

Pages: 676-686

ISSN: 1612-8850

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 17 Citations

ISI Web of Science

Scopus - 15 Citations

INSPEC

COMPENDEX

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-003-3XQ

DOI: 10.1002/ppap.200900176

Abstract (EN): The effects of surface plasma treatments on the properties of PP and PC substrates were studied. Main results showed that the 0.48 Pa Ar treatment promoted the most favorable changes: roughness increased from 15 to 17 nm for PC and from 12 to 30 nm for PP, while the CA lowered from 95° to 59° and from 87° to 35° for PC and PP, respectively. The effects of the activation treatment on adhesion were checked by depositing a thin layer of TiNx on both untreated and 0.48 Pa Ar plasma treated PC samples, and the adhesion to both substrates compared using the standard X-cut tape test. The Ar activated samples displayed better adhesion of the TiNx film than the untreated ones, confirming the benefits of the surface changes induced by the plasma treatments.

Language: English

Type (Professor's evaluation): Scientific