The application of a novel flame retardant on viscose fiber

Abstract

SUMMARYThe paper is mainly about a novel organophosphorus flame-retardant N-1-chloroisopropyl alcohol -3-dimethylphosphonopropionamide. Dimethyl phosphate, acrylamide and epichlorohydrin were used as raw materials. The mechanisms of synthesis and molecule structure of the flame retardant were discussed. The fiber was treated using the pad-dry-cure-wash method. The limiting oxygen index value of the modified sample was 31%, higher than that of the sample treated with MDPA (Pyrovatex CP). After 50 laundry cycles, it still had some flame retardancy left. Thermogravimetry (TG) and Differentiate TG analyses confirmed that the flame retardant caused fiber to decompose below its ignition temperature and formed carbonaceous residue or char when exposed to fire. The treatment had an obvious effect on the denier of the fiber; the tensile strength of fiber slightly decreased, but that effect could be negligible.

Flame retardant polystyrene copolymers: preparation, thermal properties, and fire toxicities

“…In order to get high fire performance of PS, the char forming ability of flame retardant PS is necessary. Acrylamide derivates are widely used as a co‐reactant in copolymerization and condensed‐phase flame retardant agent, which can promote the char formation . Based on the idea aforementioned, a new flame retardant monomer, which combines DOPO derivate with acrylamide specie, is designed and copolymerized with styrene (St) to obtain highly efficient flame retardant PS.…”

Structure and properties of flame‐retardant Lyocell fibers prepared by blending method

“…[8][9][10] Early research on flame retardancy of regenerated cellulose fiber mainly focused on viscose fiber. Although flame-retardant viscose fiber can be obtained by either flame-retardant treatment of viscose fiber [11] or by wet spinning after directly adding flame retardants to the spinning dope, [12,13] the mechanical properties of flameretardant viscose fiber are generally poor and cannot meet the requirements of textile. As is known to all, Lyocell fiber has better mechanical properties than viscose fiber.…”

Kinetics of Thermal Degradation of Viscose Fiber and Fire Retardant Viscose Fiber

“…Thus the manufacture of fire retardant viscose fiber is necessary. Many researchers have studied the fire retardant property of viscose fiber by blending [1][2][3][4][5][6], finishing [7][8][9][10][11][12][13] and chemical modification [14][15] with fire retardant compound.…”