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Cellulosic fibers are usually finished with flame retardant via repeated pad-dry-cure processes. The present contribution reports a simple, facile, and one-pot chemical treatment process to access durable flame retardant lyocell fibers by directly immersing the fibers into the solution of a flame retardant ester of 2,2-ethanolamine diphosphoric acid (EADP) and urea for a certain time without using...
As a renewable, abundant, and eco-friendly bio-based compound, phytic acid (PA) possesses high phosphorus content, which is a potential flame retardant for cellulosic fibers. Generally, PA is not efficient for cellulosic fibers due to strong acidity that results in greatly reduced strength and lack of soft hand. As proved elsewhere, the compounds with phosphorous and nitrogen was reported to be an...
A new strategy for synthesizing flame retardant viscose fiber (FR-VF) has been achieved by graft copolymerization of acrylonitrile (AN) onto viscose fiber and the subsequent chemical modification with hydrazine hydrate and zinc acetate. The structure of FR-VF was confirmed by X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectrometry (FTIR). The surface morphology of FR-VF...
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