Influence of Plasma Chamber Set‐Up on the Surface Modification of Non‐Vulcanized and Pure SBR Rubber Treated at Radio‐Frequencies Air Plasma

Abstract

International audienceNon-vulcanized styrene-butadiene rubber thin films were exposed to Radio-Frequency low-pressure air plasma. Two different configurations corresponding to direct and downstream RF plasmas were compared. Optical emission spectroscopy provided information about plasma composition and temperature. The plasma treated SBR surfaces were characterized by contact angles and XPS spectroscopy. Two different phenomenological mechanisms are proposed to describe the observed differences according to the plasma configuration used and account for the impact of the activated gas phase on the structure of plasma-treated non-vulcanized SBR surfac

Poly(allylamine) plasma polymer coatings for an efficient retention of Ni(II) ions by ultrafiltration membranes

“…Static contact angles with distilled water and diiodomethane were measured with the same apparatus in order to determine the surface energy of the different surfaces. According to Fowkes’ theory and as described elsewhere, surface energy of a solid substrate (γ) can be approximated as the sum of a dispersive component (γ D ) due to London forces and a non‐dispersive component (γ ND ) including all the other types of interactions (Equation ): …”

Improved Surface and Adhesion Properties of Wood-Polyethylene Composite by Treatment with Argon–Oxygen Low Pressure Plasma

“…It has been shown that the configuration of the plasma chamber during LPP treatment noticeably affected the extent of the surface modifications of rubber materials [23,24]. The different configurations of the shelves in the plasma chamber allow different plasma species of distinct energy to reach the material surface, and different extent of surface modifications can be produced.…”

“…For rubber materials, Henry el al. [24] have used direct and downstream air LPP configurations and Torregrosa-Coque et al [23] have used direct, etching and downstream oxygen LPP configurations, and they found notably different surface modifications depending on the configuration of the shelves inside the plasma chamber. Thus, Henry et al [24] have found the creation of new carbon-oxygen surface groups, improved wettability and decreased non-dispersive component of the surface energy on the rubber surface treated with direct air LPP during 2 min by using 20 W of power; however, the wettability was not modified by treating with downstream air LPP even for high discharge power.…”

“…[24] have used direct and downstream air LPP configurations and Torregrosa-Coque et al [23] have used direct, etching and downstream oxygen LPP configurations, and they found notably different surface modifications depending on the configuration of the shelves inside the plasma chamber. Thus, Henry et al [24] have found the creation of new carbon-oxygen surface groups, improved wettability and decreased non-dispersive component of the surface energy on the rubber surface treated with direct air LPP during 2 min by using 20 W of power; however, the wettability was not modified by treating with downstream air LPP even for high discharge power. On the other hand, Torregrosa-Coque and Martín-Martínez [23] have also reported the creation of new carbon-oxygen species and noticeable decrease of ethylene glycol contact angle values on rubber surface treated with direct and etching oxygen LPP during less than 2 min, the adhesion was not improved due to migration of low-molecular species to the surface during LPP treatment.…”

Effect of Carbon Black Nanofiller on Adhesion Properties of SBS Rubber Surfaces Treated by Low-Pressure Plasma

“…Thus, it is no wonder that we are looking for cleaner, more energy-efficient and environmentally friendly alternatives to the wet chemical method. Cold (non-equilibrium) plasma treatment has proven to be a particularly useful method to meet these expectations [3][4][5][6][7][8][9][10].…”