Study on the Grafting of Chitosan-Essential Oil Microcapsules onto Cellulosic Fibers to Obtain Bio Functional Material

Abstract

The purpose of this work was to prepare chitosan–essential oil microcapsules using the simple coacervation method and to graft them onto cellulosic fibers to obtain bio functional textile. The microcapsules morphology was characterized by optical microscopy. The 2D dimethyloldihydroxyethylene urea resin (DMDHEU) was used as a binding agent to graft microcapsules on the surface of cellulosic fibers. Scanning Electron Microscopy (SEM) photographs and Attenuated Total Reflectance-Fourier Transformed Infrared (ATR-FTIR) analyses were performed to prove the interaction between cellulosic fibers and microcapsules. Furthermore, the properties of the different fabrics such as mechanical strength and air permeability were investigated. Furthermore, washing durability was evaluated. Finally, the antibacterial activity of the finished fibers against the strains Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) was evaluated. The results evidence the ability of treated fabrics to induce bacteria growth inhibition. The coacervation method is a simple process to incorporate cinnamon essential oil on the cellulosic fiber’s surface. The use of essential oils as active agents seems to be a promising tool for many protective textile substrates such as antimicrobial masks, bacteriostatic fabrics and healthcare textiles.

Enhanced Antibacterial Efficiency of Cellulosic Fibers: Microencapsulation and Green Grafting Strategies

“…Typical bands observed in the region of 1650-898 cm −1 are assigned to cellulose. The characteristic peaks of -CH 2 and -CH, -OH and C-O bonds in cellulose gives the bands at 1428, 1368, 1317, 1061 and 895 cm −1 [20].…”

“…To evaluate the washing durability, a domestic washing cycle was conducted as described in our previous publication [20]. A qualitative evaluation of the microcapsules crosslinking was realized based on optical microscope photographs.…”

Microencapsulation for Functional Textile Coatings with Emphasis on Biodegradability—A Systematic Review

“…The release mechanisms vary from slow diffusion through the permeable shell to instantaneous release triggered by pressure or melting. Antimicrobial textile products include hygiene masks, footwear, sportswear, medical garments and biofunctional materials [70][71][72][73][74][75].…”

“…When functional textiles are directly involved in a domestic [70] or industrial washing, wet cleaning and dry-cleaning process [28], a more realistic assessment of the durability of the textile can be achieved as the textile is exposed to real-life care conditions (detergent, mechanical action, abrasion, temperature, time and solvent). Moreover, the washing or cleaning conditions are standardised by the machine manufacturer.…”

Special Issue “Natural Fiber Based Composites”

“…In the same way, the grafting of chitosan-essential oil microcapsules onto cellulosic fibers would make it possible to consider the manufacture of protective textile substrates such as antimicrobial masks, bacteriostatic fabrics and healthcare textiles [13].…”