Comparison between XPS‐ and FTIR‐analysis of plasma‐treated polypropylene film surfaces

Abstract

Plasma treatment is often used to modify the surface properties of polymer films, since it offers numerous advantages over the conventional surface modification techniques. In this paper, a polypropylene (PP) film is plasma-treated using a dielectric barrier discharge (DBD) operating in air at medium pressure (5.0 kPa). The modified polymer films are characterized using contact angle measurements, XPS-analysis and attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy. Results show that plasma treatment leads to a remarkable decrease in contact angle owing to the implantation of oxygen-containing functional groups. Using XPS and ATR-FTIR, these oxygen-containing groups can be identified as C-O, C O and O-C O. In this paper, it is also shown that XPS is well-suited to provide quantitative chemical analysis of the PP films, while ATR-FTIR can only give qualitative information. To perform quantitative ATR-FTIR measurements, chemical derivatization will be explored in the near future.

Manufacturing and Characterization of Jute/PP Thermoplastic Commingled Composite

“…The bands present in PP spectrum confirms that the yarn is made of polypropylene (PP) 19,20 . Figure 8 shows the polymer DSC analysis results.…”

A review of recent trends in polymer characterization using non-destructive vibrational spectroscopic modalities and chemical imaging

“…Morent et al [23] used ATR-FTIR spectroscopy (in the 4000-750 cm -1 range) to characterize plasma-induced chemical changes on the surface of polypropylene (PP) films (film thickness 75um). Water contact angle and XPS measurements of the PP films were also taken.…”

“…This would be useful for making comparisons between different analytical techniques(for example, AFM derived thickness data fitted to FTIR reflectance) [21]. In the case of depth profiling, it is important that achievable penetration depths of the selected chemical imaging technique matches the thickness of the surface being analysed [20], [23]. In the future, new research areas in chemical imaging are expected to emerge and some focus areas are detailed subsequently.…”

Atmosferik plazma yüzey aktivasyon işlemi ile farklı yüzey tarama hızlarının polipropilen yüzey ıslatma özelliklerine etkisi

“…Oluşan plazma içindeki elektron, iyon ve serbest radikaller hedef yüzey ile etkileşeme girerek yüzey bağlarında 150 Å mertebesinde değişim yaratır. Bu etkileşim ilk etapta üçüncül dereceden hidrojen atomlarının koparılması, ikinci etapta ikincil derecedeki karbon atomlarına -C-OH-, CO-OH ve -C=O gibi radikal grupların bağlanması, üçüncü etapta COOH grupları ya da radikallerin üç boyutlu çapraz bağlarla metil gruplarına bağlanmasını içermektedir [5,6]. Uygulanan plazma aktivasyonu sırasında malzemenin mekanik, kimyasal ve bulk özelliklerinde herhangi bir değişimin olmaması, zararlı emisyon gaz çıkışının olmaması, kolay uygulanabilir ve ekonomik bir yöntem olması sistemin başlıca avantajlarını oluşturmaktadır [7].…”