Plasma-assisted in-situ preparation of silver nanoparticles and polypyrrole toward superhydrophobic, antimicrobial and electrically conductive nonwoven fabrics from recycled polyester waste

다국어 초록 (Multilingual Abstract)

The preparation of multifunctional polyester fabric has been recently attractive research. Herein, a compositefilm of silver nanoparticles (AgNPs) and polypyrrole (Ppyr) were prepared and incorporated in situinto plasma-pretreated polyesters using the pad-dry-cure procedure of silver nitrate and pyrrole intopolyester to provide a multifunctional textile. Recycled polyester waste was shredded and melt-spunto provide nonwoven fabric. Polypyrrole was generated in situ via REDOX polymerization process of pyrrole.
This polymerization process was accompanied with reduction of Ag+ to Ag0 NPs, leading to permanentinsoluble property within the structure of the polyester fibers. Thus, high colorfastness wasmonitored without varying the comfort features of the finished polyesters. The produced polypyrroleacted an electrically conductive agent, whereas silver nitrate functioned as an antmicrobial agent. By curingwith hexadecyltrimethoxysilane (HDTMS), the superhydrophobic properties were imparted to polyesterfabrics. The morphological studies were explored by energy-dispersive X-ray spectroscopy (EDX),transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), and scanningelectron microscope (SEM). The bend length and air-permeability of the finished polyesters were investigatedto assess their comfort characteristics. The antibacterial behavior to S. aureus and E. coli wereexamined. Additionally, the finished fabrics showed ultraviolet shielding and electrical conductivity.