Develop new methods of sustainable cellulose coatings for self-cleaning and repair fabrics.

Use cellulose nanofibers to make sustainable fabric super-hydrophobic coatings.
recently, self-cleaning fabrics have attracted great attention for their greater functionality and unique self-cleaning capabilities to prevent contamination. Typically, self-cleaning fabrics have ultra-hydrophobic surfaces

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Unfortunately, to date, most ultra-hydrophobic surfaces have been produced using fluoride or carbon/inoromic nanoparticles, which are known to have adverse effects on human health and the environment. Therefore, a new work proposes an easy way to develop new sustainable super-hydrophobic coatings to produce self-cleaning and healing fabrics.
droplets roll like a ball on the surface
the coating was developed using cellulose nanofibers (CNFs) as raw materials. When applied to a variety of fabrics (cotton and polyester), they become ultra-hydrophobic, with a WCA of 152-156 degrees (±3), so most droplets roll like balls on the surface to form a self-cleaning fabric. Furthermore, coated fabrics can quickly restore self-healing properties when heated.
the study was published in March 2020 in volume 140 of Organic Coatings Progress.
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