2020
DOI: 10.3390/polym12112756
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Development of Energy-Efficient Superhydrophobic Polypropylene Fabric by Oxygen Plasma Etching and Thermal Aging

Abstract: This study developed a human-friendly energy-efficient superhydrophobic polypropylene (PP) fabric by oxygen plasma etching and short-term thermal aging without additional chemicals. The effect of the microroughness on the superhydrophobicity was examined by adjusting the weave density. After the PP fabric was treated with oxygen plasma etching for 15 min and thermal aging at 120 °C for 1 h (E15H120 1 h), the static contact and shedding angles were 162.7° ± 2.4° and 5.2° ± 0.7° and the energy consumption was 13… Show more

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Cited by 21 publications
(13 citation statements)
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“…For the EPP fabric, the plasma etching created polar oxygen-containing groups (e.g., OH, COOH, etc.) attached to the fiber surface that increase the hydrophilicity . Nonetheless, their concentration is low, according to EDS and FT-IR results (Table S1 and Figure ), limiting the Ag adsorption.…”
Section: Resultsmentioning
confidence: 97%
“…For the EPP fabric, the plasma etching created polar oxygen-containing groups (e.g., OH, COOH, etc.) attached to the fiber surface that increase the hydrophilicity . Nonetheless, their concentration is low, according to EDS and FT-IR results (Table S1 and Figure ), limiting the Ag adsorption.…”
Section: Resultsmentioning
confidence: 97%
“…Zimmermann et al developed a method to measure the shedding angles of superhydrophobic textiles to evaluate their water-repellent properties. However, even when a surface is determined to be superhydrophobic based on the shedding angle, it has been shown that the water repellency of the fabric can vary significantly depending on the external conditions under which the water droplet is applied. , Thus, considering that the superhydrophobic textile is used for clothing materials to be worn in various environments, we investigated the effects of the drop fall height, the surface inclination angle, and the droplet volume to examine the dynamic behaviors of the droplets on the PVDF-L, PVDF/PET-L, and PVDF/PET-H specimens, as depicted in Figure , where the x -axis represents the surface inclination angle and the y -axis represents the droplet volume.…”
Section: Resultsmentioning
confidence: 99%
“…Various surface-structuring methods have been studied to stably maintain the CB state . Plasma etching is a relatively simple process that does not require a mask and can successfully implement superhydrophobicity while forming surface structures such as nanopillars on polymer films or textiles. The volume of the air trapped between surface structures increases as the thinness and length of the nanopillars increase, so the area of solid that contacts water decreases; this decrease can impart superhydrophobicity . Even if the vertical depth and chemical composition of the nanopillars are not changed, the horizontal shape of the surface structure such as spacing between pillars or the diameter of the upper surface of pillars can induce the lotus effect by the CB state or the rose-petal effect by the Wenzel state. , This observation emphasizes the importance of understanding how various morphological elements of the surface structure can affect its wettability …”
Section: Introductionmentioning
confidence: 99%