Synthesis and Application of β-Cyclodextrin Microcapsules Containing Hydantoin and Menthol Essential Oil via Double...

Area of Science:

• Materials Science
• Textile Chemistry
• Nanotechnology

Background:

• Growing demand for textiles with enhanced functionalities like odor control, antibacterial properties, and UV protection.
• Need for durable finishing methods to impart these properties to fabrics.
• Limitations of existing treatments in terms of longevity and multifunctionality.

Purpose of the Study:

• To develop and evaluate novel microcapsules for multifunctional textile finishing.
• To investigate the synergistic effects of dual-core microcapsules and modified cyclodextrin on fabric performance.
• To assess the odor adsorption/degradation, antibacterial activity, and UV protection of the treated fabric.

Main Methods:

• Preparation of dual-core microcapsules using 5-propylhydantoin (PHDT) and menthol essential oil within a polyurethane shell.
• Incorporation of 2-(4-bromophenyl)-5-phenylthiophene-modified β-cyclodextrin (β-CD) into the microcapsule shell.
• Application of microcapsules to cotton fabric and evaluation of odor removal, antibacterial efficacy, and UV protection.
• Assessment of durability through abrasion testing.

Main Results:

• The dual-core microcapsule system with modified β-CD significantly enhanced odor removal efficiency through adsorption and degradation of trans-2-nonenal.
• Synergistic effects between PHDT and the thiophene-based component boosted performance.
• Treated fabric showed high antibacterial activity (97% against E. coli, 92% against S. aureus).
• Excellent UV protection was achieved (UPF 71), with significant retention after abrasion (UPF ~40 after 30 cycles).

Conclusions:

• A feasible method for creating multifunctional textiles with durable odor management and protective properties was demonstrated.
• The developed microcapsules offer a promising approach for advanced functional textile finishing.
• The combination of dual-core systems and modified cyclodextrins provides a synergistic route to enhanced fabric performance.