Abstract
A plasma surface treatment of biaxially oriented polypropylene (BOPP) film was carried out with dielectric barrier glow discharge (DBGD) in Ar/air. The paper studied the effects of the ratios of Ar/air plasma on the BOPP surface modification. The results indicated that the efficiency of the plasma surface modification was improved with increasing treatment time and power density with DBGD in Ar/air. The water contact angle increased first and then decreased with the increase of the Ar/air mixture rate. The DBGD gives a better surface modification than filament discharge. The ageing behavior was influenced by the mixture rate of Ar/air, but the water contact angle of the treated sample was always less than that of un-treated sample.
Highlights
Oriented polypropylene (BOPP) film is widely used as packaging materials, book covers, and a variety of containers
The Biaxially oriented polypropylene (BOPP) film was cut into 40 mm × 30 mm rectangular pieces, and the pieces were cleaned in acetone solution for 12 hours, the samples were rinsed with alcohol, the samples were put into the oven for drying 5 minutes
The dielectric barrier glow discharge (DBGD) discharge generated under atmospheric pressure could be used as the efficient technique for the BOPP surface modification, and DBGD gave better surface modification than filament discharge
Summary
Oriented polypropylene (BOPP) film is widely used as packaging materials, book covers, and a variety of containers. It is a kind of typical hard stick material because of its poor surface wettability, which limits its application in the field of industry [1] [2]. In order to improve the adhesion of the material, surface modification is needed. Chemical and physical processes have been developed to modify BOPP film, such as flame treatment, plasma treatment, ultraviolet treatment, metal plating, etching, oxidation, and surface grafting [3]-[8]. (2015) Plasma Surface Treatment of BOPP Film by Dielectric Barrier Glow Discharge in Argon/Air. Journal of Modern Physics, 6, 1991-1999.
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