Influence of Dielectric Barrier Discharge Treatment on Surface Structure of Polyoxymethylene Fiber and Interfacial Interaction with Cement

Abstract

Polyoxymethylene (POM) fiber was treated with atmospheric dielectric barrier discharge (DBD) plasma to enhance the surface activity of the fiber and interfacial interaction with cement. The physical and chemical properties of samples with different DBD plasma treatment durations were tested and analyzed. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) revealed that the surface roughness of the sample increased significantly as a result of the DBD plasma treatment. Fourier transform infrared spectrophotometer (FTIR) and X-ray photoelectron spectroscopy (XPS) analysis showed that a large number of –COH and –COOH groups were formed on the surface of the sample after DBD plasma treatment. The hydrophilicity of the POM fiber was greatly improved with the increase in the treatment duration. When the treatment duration was longer than 120 s, the fiber surface contact angle decreased from 90° to 43°. The DBD plasma treatment resulted in a decrease in the tensile strength of the POM fiber, but the increase in the amount of –COH and –COOH on the surface of the POM fiber and the increase in the roughness resulted in an increase in the fiber pull-out bonding strength in cement from 2.15 N to 4.68 N.

Enhancing surface morphology, mechanical, and wettability properties of PVA/chitosan/HAp nanofiber scaffold through dielectric barrier discharge plasma treatment

“…Scaffold nanofiber for bone tissue engineering offers numerous advantages, such as its resemblance to natural bone extracellular matrix, providing a large surface area, and potential for modification to improve its mechanical properties and surface morphology [1][2][3]. Studies have demonstrated that dielectric barrier discharge (DBD) plasma treatment emerges as a valuable approach to enhance nanofiber performance [4][5][6]. It is energy-efficient and environmentally friendly, making it a particularly attractive option for achieving this goal [7].…”

“…Currently, DBD plasma has become a popular method for polymer surface modification because of its energy efficiency and environmental friendliness [7,32]. Several researchers have used DBD plasma with O 2 , Ar, N 2 , and He/NH 3 plasma to improve the mechanical properties, biocompatibility, cell interactions, and surface roughness of polymers [4,5,33]. This study employed an innovative approach by utilizing atmospheric-pressure DBD plasma air for surface modification of PVA/Chitosan/HAp nanofiber composites, a more cost-effective method due to its no-vacuum-pump requirement.…”

Cracking and Photo-Oxidation of Polyoxymethylene Degraded in Terrestrial and Simulated Marine Environments

“…Liu et al (2021) found POM microplastics present in water, sediment, and fish samples from the Dafeng River, a remote river in China. The polymer is an attractive engineering material with favorable mechanical properties, wear resistance, dimensional stability, chemical resistance and electrical insulation so has been used not only in the automotive and mechanical industries, electronics, consumer goods and home appliances, but also as a surgical implant material and in medical devices and drug delivery systems (Vilà Ramirez et al, 2009;Zhang et al, 2018;Kroĺ-Morkisz et al, 2019). Marine plastic waste suffers thermal-, photo-, chemical-and bio-degradation breaking into micro-(<5 mm) and nano (<1,000 nm) contaminants, which can be related to the physical and molecular properties (Alimi et al, 2018;Coyle et al, 2020;Gangadoo et al, 2020;Kavya et al, 2020;Min et al, 2020;Napper and Thompson, 2020).…”

Obtaining Medical Textiles Based on Viscose and Chitosan/Zinc Nanoparticles with Improved Antibacterial Properties by Using a Dielectric Barrier Discharge

“…The resulting gas mixture in the DBD plasma contains reactive species such as energetic electrons, positive and negative ions, neutrals, radicals, and molecular fragments. Generated reactive species are suitable for catalysis of material degradation, building blocks of material assembly, and chemical and physical interactions with molecules on the material’s surface [ 25 , 26 ].…”