IMPARTING SUPERHYDROPHOBICITY OF POLYESTER FABRICS WITH CONTROLLED RELEASE USING SIO2 AEROGEL MICROCAPSULE COATING
DOI:
https://doi.org/10.63456/tsrj-2-1-28Keywords:
Sio2 Aerogel Microcapsule, Superhydrophobic Coating, Diffusion-Controlled Release, Multifunctional Polyester, Wash DurabilityAbstract
Developing polyester fabrics that combine fragrance release with durable liquid repellency remains a challenge in smart textiles. In this research, we introduce a novel dual-functional finishing technique that merges SiO2 aerogel microcapsule coating with Triethoxy-1H,1H,2H,2H-tridecafluorooctylsilane (POTS) to produce superhydrophobic aromatic polyester fabrics. Scanning Electron Microscopy (SEM) confirmed uniform adhesion of approximately 10 μm microcapsules, optimally dispersed at 10 wt%. The resultant polyester fabrics achieved water contact angles above 150°, demonstrated strong self-cleaning properties, and resisted wetting by both water-based and oily liquids. As microcapsule content increased, air and moisture permeability decreased due to pore blocking, indicating a balance between protection and breathability. Despite this, the fabrics effectively released fragrance, with 15.8% of essential oil released after 30 h at 80 °C, comparable to isolated SiO2 microcapsules. Additionally, the fabric handle experiment exhibited reduced softness and smoothness but increased stiffness and drape coefficient with higher microcapsule amounts. Moreover, washing durability performance indicated gradual microcapsule loss and decreased hydrophobicity, although partial repellency and fragrance retention persisted after 20 cycles. Consequently, these findings demonstrate a potential finishing process for producing multifunctional polyester fabrics suitable for smart and protective textile applications.
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