Fabrication of C6-Fluorocarbon-dendrimer-based superhydrophobic cotton fabrics for multifunctional aspects

Abstract

C6-Fluorocarbon-dendrimer has been applied to the cotton knit fabric to develop oil-water repellent, oilwater separation, acid-resistant, self-cleaning, ame retardant, UV resistant, and antibacterial properties. The C6-Fluorocarbon (FC)-dendrimer-coated 100% cotton single jersey knitted fabric samples were prepared using the "pad-dry-cure" method. The 90 g/L and 100 g/L FC-dendrimer-treated cotton fabrics showed excellent water repellency and oil-water separation as well as good self-cleaning performance. However, air permeability and heat conductivity were reduced by 13%, 15%, and 40%, 54%, for 90 g/L and 100 g/L FC-dendrimer-treated cotton fabrics compared to untreated fabrics. The presence of FCdendrimer in the treated fabric was con rmed by FTIR, SEM, EDS, and XRD analyses. SEM analysis was employed to study the morphology of deposited FC-dendrimer particles on the fabric surface. TGA and DTA evaluated thermal performance. The FC-dendrimer-treated fabric also showed acid resistance, selfcleaning performance, and UV resistant attribute. In addition, Bacterial population growth appears to be less on the FC-dendrimer-treated sample than on the untreated sample. Overall, the result suggests that FC-dendrimer can be a valuable ingredient in the manufacture of multifunctional products.

Sustainable Dyeing and Finishing of Cotton Fabrics with Layer-by-Layer Technique

“…The fluorocarbon left the fabric stiff as it cross-linked with the O-H group in the amorphous region of the cotton. In addition, since the cross-linking reaction of the fluorocarbon occurred with acetic acid added to the bath in the acidic region, it caused a decrease in strength [36][37][38]. As a result of the processes carried out according to the layer-by-layer deposition principle, it was determined that there was an increase in the breaking strength values of 5.41% for reactive dyes and 4.24% for direct dyes.…”

Recent advances of textile sorbents for oil spills cleanup: A review

“…Saha et al, 166 fabricated a new sorbent of knitted cotton fabric for oil-water separation via the pad-dry-cure technique (Figure 14(a)). Herein, the fabric was coated with C6- Fluorocarbon (FC)-dendrimer (Figure 14(b) and (c)).…”

“…Whereas, the oil weight gain (%) of uncoated fabric and coated fabric was 521 ± 2.31% and 698 ± 2.65%, respectively, for engine oil. They concluded that the weight gain (%) of vegetable oil is the highest for both compared sorbents owing to its low viscosity (Figure 13 Saha et al, 166 fabricated a new sorbent of knitted cotton fabric for oil-water separation via the pad-dry-cure technique (Figure 14(a)). Herein, the fabric was coated with C6-Fluorocarbon (FC)-dendrimer (Figure 14(b) and (c)).…”

“…In addition, the sorbent exhibited an excellent capacity for oil absorption which reached 24.5 g/g for dichloromethane (Figure 17(c)). Furthermore, they concluded that the 166 absorption capacity of their sorbent was better for heavy oils compared with organic solvents and light oils.…”

“…(d, (e) WCA of untreated and treated fabric, respectively. (f) The process of oil-water separation 166.…”