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Application of Lavender-Oil Microcapsules to Functionalized PET Fibers
Rita de Cássia Siqueira Curto Valle1, José Alexandre Borges Valle1, Fabricio Maestá Bezerra2
1Department Textile Engineering, Federal University of Santa Caterina, Blumenau 89036-002, SC, Brazil.
Polymers
|February 28, 2023
Summary
Ozone and plasma surface treatments enhance microcapsule impregnation in polyester fabrics. These treatments affect lavender oil release, showing potential for functional textiles.
Area of Science:
- Materials Science
- Textile Engineering
- Surface Chemistry
Background:
- Surface treatments are crucial for modifying textile properties.
- Ozone and plasma treatments alter textile surfaces, improving molecule/particle adhesion.
- Polyester fabrics (PES) are widely used but require functionalization for advanced applications.
Purpose of the Study:
- To evaluate the impact of ozone and plasma treatments on impregnating polyester fabrics with lavender oil-loaded microcapsules.
- To characterize the microcapsules and their interaction with treated PES.
- To assess the effect of surface treatments on lavender oil release.
Main Methods:
- Preparation of chitosan-gum arabic microcapsules containing lavender oil via complex coacervation.
- Impregnation of microcapsules into untreated, plasma-treated, and ozone-treated PES using padding.
- Characterization using FTIR, TGA, SEM, and lavender release studies.
Main Results:
- Spherical microcapsules with smooth surfaces were successfully prepared.
- FTIR confirmed microcapsule polymer presence but not lavender, indicating poor retention on the smooth outer wall.
- SEM visualized microcapsule impregnation, with larger sizes perceived.
- TGA showed similar thermal stability for treated and untreated PES.
- Lavender release studies indicated that plasma and ozone treatments influenced both the quantity and control of oil delivery.
Conclusions:
- Ozone and plasma treatments facilitate microcapsule impregnation in PES fabrics.
- Surface treatments significantly affect the release kinetics of encapsulated lavender oil.
- These findings suggest potential for developing functional textiles with controlled fragrance release.
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