Abstract:In this research work, the effect of argon plasma treatment variables on the comfort and antibacterial properties of polyester fabric has been investigated. The SEM micrographs and FTIR analysis confirms the modification of fabric surface. The Box-Behnken design was used for the optimization of plasma process variables and to evaluate the effects and interactions of the process variables, i.e. operating power, treatment time and distance between the electrodes on the characteristics of polyester fabrics. The o… Show more
“…Plasma-treated fabric acquires a surface roughness due to etching and this change of surface morphology influences adsorption and absorption of fluids contributing to excellent hydrophilicity of materials with increased surface energy [20]. The roughness, cracks and grooves on the plasma-treated surface could have decreased the capillary pressure and increased the wickability of fabrics [21]. Figure 11.Influence of plasma treatment variables on wicking height (machine direction) of bamboo spunlace nonwoven fabric.Figure 12.Influence of plasma treatment variables on wicking height (cross direction) of bamboo spunlace nonwoven fabric.…”
In this study, Box–Behnken design was used to study the effect of optimization of plasma treatment on surface modification of bamboo spunlace nonwoven fabric. The effect and interaction of the process variables of glow discharge oxygen plasma treatment, i.e. discharge power, exposure duration and inter-electrode spacing on fabric characteristics such as mass per unit area, thickness, breaking force and elongation, air permeability, water vapour permeability and wicking were analysed. The optimum conditions of discharge power 650 W, exposure duration 55 s, and inter-electrode spacing 4 cm were arrived using response optimizer tool of Minitab software. The fabrics showed better characteristics in terms of air permeability, water vapour permeability, wicking and elongation and showed slight reduction in terms of fabric weight, thickness and breaking force. Fourier-transform infrared spectroscopy spectra analysis confirmed the increased functionality of the material after plasma treatment.
“…Plasma-treated fabric acquires a surface roughness due to etching and this change of surface morphology influences adsorption and absorption of fluids contributing to excellent hydrophilicity of materials with increased surface energy [20]. The roughness, cracks and grooves on the plasma-treated surface could have decreased the capillary pressure and increased the wickability of fabrics [21]. Figure 11.Influence of plasma treatment variables on wicking height (machine direction) of bamboo spunlace nonwoven fabric.Figure 12.Influence of plasma treatment variables on wicking height (cross direction) of bamboo spunlace nonwoven fabric.…”
In this study, Box–Behnken design was used to study the effect of optimization of plasma treatment on surface modification of bamboo spunlace nonwoven fabric. The effect and interaction of the process variables of glow discharge oxygen plasma treatment, i.e. discharge power, exposure duration and inter-electrode spacing on fabric characteristics such as mass per unit area, thickness, breaking force and elongation, air permeability, water vapour permeability and wicking were analysed. The optimum conditions of discharge power 650 W, exposure duration 55 s, and inter-electrode spacing 4 cm were arrived using response optimizer tool of Minitab software. The fabrics showed better characteristics in terms of air permeability, water vapour permeability, wicking and elongation and showed slight reduction in terms of fabric weight, thickness and breaking force. Fourier-transform infrared spectroscopy spectra analysis confirmed the increased functionality of the material after plasma treatment.
“…Using the program Design-Expert the ideal operational power conditions were 600 W, treatment time 30 S and the gap between electrodes of 2.8 mm. [53] the efficiency of the process depends on the intensity of the treatment, intensity of corona discharge at atmospheric pressure (CDAP ) is a function of the discharge power and exposure times.…”
Section: Environmental Benefits Of Using Plasma Treatmentmentioning
T HE TEXTILE industry is seeking innovative manufacturing technology to increase the quality of the fabric, and society needs modern environmental finishing techniques, such as using plasma Treatment as atmospheric-pressure dielectric barrier discharge (APDBD) corona discharge at atmospheric pressure (CDAP) which are gaining popularity in the textile industry due to their many advantages over traditional wet processing methods the textiles industry is gaining in popularity. The initiation of plasma by air or conventional industrial gases, such as hydrogen H2, N2 and oxygen O2 at ambient pressures, may be accomplished. Plasm introduces usable surface groups to provide properties such as antibacterial, UV, flame retardant and antistatic that are used in various fabrics such as cotton, linen, polyester, and surface fabrics after plasma therapy.
“…aureus) and Gram-negative (E. coli) bacteria 34 . Likewise, Slepicka et al showed that LPP-Ar can improve the antibacterial properties of polytetrafluoroethylene (PTFE) nanotextiles and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) (PFA) films 35 .…”
Due to the global spread of the SARS-CoV-2 virus and the resultant pandemic, there has been a major surge in the demand for surgical masks, respirators, and other air filtration devices. Unfortunately, the fact that these filters are made of petrochemical-derived, non-biodegradable polymers means that the surge in production has also led to a surge in plastic waste. In this work, we present novel, sustainable filters based on bacterial cellulose (BC) functionalized with low-pressure argon plasma (LPP-Ar). The “green” production process involved BC biosynthesis by Komagataeibacter xylinus, followed by simple purification, homogenization, lyophilization, and finally LPP-Ar treatment. The obtained LPP-Ar-functionalized BC-based material (LPP-Ar-BC-bM) showed excellent antimicrobial and antiviral properties, with no cytotoxicity versus murine fibroblasts in vitro. Further, filters consisting of three layers of LPP-Ar-BC-bM had >99% bacterial and viral filtration efficiency, while maintaining sufficiently low airflow resistance (6 mbar at an airflow of 95 L/min). Finally, as a proof-of-concept, we were able to prepare 80 masks with LPP-Ar-BC-bM filter and ~85% of volunteer medical staff assessed them as good or very good in terms of comfort. We conclude that our novel sustainable, biobased, biodegradable filters are suitable for respiratory personal protective equipment (PPE), such as surgical masks and respirators. Further, with scale-up, they may be adapted for indoor air handling filtration in hospitals or schools.Graphical abstract
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