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

Abstract

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Comparative surface and adhesion properties of mechanical abrasion, flame and radiation-based surface treated wood plastic composites made with different polymers

“…AQ6 Please provide the publisher name location for reference [2]. Page 13 AQ7 Please provide the volume and page range/article number details for reference [10].…”

“…The shelves inside the plasma reactor were placed in direct working mode, the power was set to 200 W, and the residual pressure was set to 800 mbar. This surface treatment was optimized in a previous study [10], the best performance was obtained by using a length of treatment of 90 s. The optimal conditions for the surface treatments of the WPCs are summarized in table 1.…”

“…Among the different surface treatments of WPCs described in the existing literature, the most effective was the surface treatment with chromic acid, but due to environmental concerns it has to be substituted. On the other hand, the surface treatment with O 2 low pressure plasma improved more than two-fold the peel strength, and, during the last few years, additional surface treatments for WPCs made with polyolefin have been proposed including UV/ozone, dielectric barrier discharge, and atmospheric pressure plasma torch, all them improved the surface properties and the adhesion of the WPCs [10][11][12][13][14][15][16][17]. However, a comparison of the effectiveness of these surface treatments in WPCs made with polymers different than PE and PP has not been carried out yet.…”

Influence of air contamination during heat-assisted plasma treatment on adhesion properties of polytetrafluoroethylene (PTFE)

“…[1][2][3][4][5][6][7][8][9] In addition, plasma has been used to enhance the adhesion strength between composite materials such as carbon-berreinforced plastics (CFRP) and wood-plastic composites. 10,11 However, plasma treatment has little effect on polytetrauoroethylene (PTFE) which is a representative uoropolymer. [12][13][14] As an alternative to impart adhesion properties to PTFE, surface gra polymerization can be applied during plasma treatment 15,16 and aer plasma treatment.…”

Comparison between adhesion properties of adhesive bonding and adhesive-free adhesion for heat-assisted plasma-treated polytetrafluoroethylene (PTFE)

“…The literature also includes numerous reports on the positive effects of plasma treatment on adhesive bonding in systems such as PE/ epoxy adhesive (EP-adhesive), PP/EP-adhesive, PS/EP-adhesive, PET/EP-adhesive, PA/EP-adhesive, and PEEK/EP-adhesive [5][6][7] and on adhesive-free adhesion in systems such as PMMA/PMMA, COP/COP, PEEK/PEEK, and LCP/glass [8][9][10][11]. In recent years, there are reports on plasma and its applications for improving adhesion strength between different materials such as conductive paste/stretchable substrate (polydimethylsiloxane, polyimide) [12,13], carbon fiber reinforced plastics (CFRP) [14], and wood plastic composites [15]. Plasmatreated PTFE samples have been evaluated via several methods including water contact angle measurements, electron spin resonance (ESR) measurements, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and atomic force microscopy, and the changes in their surface conditions and morphology as a result of the treatment have been reported in detail [16][17][18][19].…”