In-depth diffusion of oxygen into LDPE exposed to an Ar--O2 atmospheric post-discharge: a complementary approach between AR-XPS and Tof-SIMS techniques

Abstract

The in-depth oxygen diffusion into a low density polyethylene film is performed in the post-discharge of an atmospheric plasma torch, supplied in argon as carrier gas and with or without oxygen as reactive gas. The chemical and structural properties of the polymer surface and bulk are studied in terms of plasma parameters (treatment time, power, and reactive gas flow rate). A good correlation between XPS and Fourier transform infrared spectroscopy analyses is demonstrated. The penetration depth of oxygen into the bulk of the polymer is investigated by angle resolved-XPS and time-of-flight SIMS. It is shown that, depending on the plasma conditions, oxygen could penetrate up to 20--40 nm into the low density polyethylene during the atmospheric plasma treatment.

References in corpus (3)

• In-depth diffusion of oxygen into LDPE exposed to an Ar--O2 atmospheric post-discharge: a complementary approach between AR-XPS and Tof-SIMS techniques
• Influence of ambient air on the flowing afterglow of an atmospheric pressure Ar/O2 radiofrequency plasma
• Chemical mechanisms inducing a dc current measured in the flowing post-discharge of an RF He-O2 plasma torch

Cited by in corpus (5)

• Understanding polyethylene surface functionalization by an atmospheric He-O${}_2$ plasma through combined experiments and simulation
• In-depth diffusion of oxygen into LDPE exposed to an Ar--O2 atmospheric post-discharge: a complementary approach between AR-XPS and Tof-SIMS techniques
• Reactivity of water vapor in an atmospheric argon flowing post-discharge plasma torch
• LDPE Surface Modifications Induced by Atmospheric Plasma Torches with Linear and Showerhead Configurations
• Ion mobility and segregation in seed surfaces subjected to cold plasma treatments