Journal
POLYMERS
Volume 12, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/polym12102196
Keywords
polyamide; insect repellency; electrospinning; plasma-treated; dip coating; permethrin; efficacy
Categories
Funding
- Cornell Center for Materials Research-Research Experience for Undergraduates program [DMR-1757420, DMR-1719875]
- United States Department of Agriculture (USDA) National Institute of Food and Agriculture (NIFA) [NC-1194]
- National Science Foundation Materials Research Science and Engineering Centers program [DMR-1719875]
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The need for light-weight and high-strength insect-repellant fabrics is of critical importance to the cessation of viral diseases. The goal of the study is to investigate the structure and properties of insect-repellent polyamide fabrics for use in protective garments to guard against mosquitos. Permethrin was applied to the polyamide fabrics through incorporation into the nylon 6 polymer solution during electrospinning and dip coating onto the control untreated and oxygen plasma-treated polyamide fabrics: electropun nylon 6 nanofiber nonwovens, commercially available nylon 6 warp knit tricot, and nylon 66 double weft, knit interlock fabrics. The incorporation of permethrin into the polymer solution before the formation of fibers demonstrated the most efficient way to apply permethrin to the fiber/fabric systems. The plasma treatment significantly increased the amount of permethrin on the surface of the fabrics. All permethrin-containing polyamide fabrics showed excellent fastness of the insecticide to light. The electrospun nylon 6 nonwovens demonstrated the best fastness to washing among the plasma-treated electrospun nylon 6, nylon 66 double weft knit, and nylon 6 warp-knit tricot. All permethrin-treated fabrics were repellent and caused higher percentage of mosquito escape compared to the control untreated fabrics.
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