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Functional Antibacterial Finishing of Woolen Fabrics Using Ultrasound Technology
Fatma Abdelghaffar,Rehab A. Abdelghaffar,Amany A. Arafa,Mona M. Kamel 한국섬유공학회 2018 Fibers and polymers Vol.19 No.10
The growing concern for the personal health and hygiene has created the necessity of acquiring wool fabric antibacterial activity. Silicon dioxide nanoparticles (SiO2 NPs) have appropriate features to enhance the functional properties of wool fabrics, especially with polymer application. In this study efficient coating using polyethylene glycol (PEG2000) and SiO2 NPs were used for imparting antibacterial properties to treated fabrics. All the treatments were carried out using both conventional and ultrasound techniques. The physical and chemical properties were evaluated using FTIR, XRD, and SEM. The result indicated that treated wool fabrics by PEG/SiO2 NPs improved the dyeability and antibacterial of the fabrics and also enhanced its mechanical properties. Furthermore, it is believed that the ultrasound radiation causes homogeneous distribution of cross-links and polymerization throughout the wool surface. This offers considerable advantages compared to conventional treatment.
Fatma Abdelghaffar,Manal G. Mahmoud,Mohsen S. Asker,Sahar S. Mohamed 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.99 No.-
Linen fabrics, one of the oldest natural cellulose fabrics, lack the functional properties for the medicalgarments that can be acquired using the green synthesis of silver nanoparticles. Therefore, the currentstudy presents a statistical design for one-pot green synthesis of silver nanoparticles (AgNPs) under UVlight using the natural polysaccharide (BSEPS) produced by Bacillus subtilis sp. suppress. The Taguchimethod was used to evaluate the optimal green synthesis of AgNPs, and obtain smaller nanoparticlessizes, by three effective factors, AgNO3 concentration, BSEPS concentration, and pH. In addition, thedeposition of AgNPs capped with BSEPS was investigated onto linen to promote antibacterial activity,functional surface properties, and dyeability. FTIR, XRD, TEM, SEM, and EDX have confirmed thefabrication and deposition of AgNPs on linen fabrics. BSEPS/AgNPs fabricating shows positive results forantibacterial activities against E. coli and S. aureus for linen fabrics, both undyed and dyed. The resultsrevealed that BSEPS/AgNPs played a dual role in reducing bacterial activity and increasing dyeability.