期刊
POLYMERS
卷 13, 期 20, 页码 -出版社
MDPI
DOI: 10.3390/polym13203549
关键词
low-pressure plasma; plasma process; plasma polymerisation; surface modification; plasma deposition
资金
- Valencian Institute for Business Competitiveness (IVACE) of Generalitat Valenciana
- European Regional Development Fund (ERDF) [IMDEEA/2021/63]
This study developed hydrophobic coatings on leather materials using plasma polymerisation with organosilicon compound as precursor, which showed good water repellent effect without altering the visual appearance and haptic properties of the leather. The plasma deposition process demonstrated promising results as a sustainable alternative to conventional functional coatings, thereby reducing the use of hazardous chemicals in footwear manufacturing.
The aim of this work is to develop hydrophobic coatings on leather materials by plasma polymerisation with a low-pressure plasma system using an organosilicon compound, such as hexamethyldisiloxane (HMDSO), as chemical precursor. The hydrophobic coatings obtained by this plasma process were evaluated with different experimental techniques such as Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and standardised tests including colour measurements of the samples, surface coating thickness and water contact angle (WCA) measurements. The results obtained indicated that the monomer had polymerised correctly and completely on the leather surface creating an ultra-thin layer based on polysiloxane. The surface modification produced a water repellent effect on the leather that does not alter the visual appearance and haptic properties. Therefore, the application of the plasma deposition process showed promising results that makes it a more sustainable alternative to conventional functional coatings, thus helping to reduce the use of hazardous chemicals in the finishing process of footwear manufacturing.
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