▎ 摘　　要

NOVELTY - Manufacture of functional spandex fiber involves adding organic solvent, graphene and/or carbon nanofiber material (A), polyether glycol, adding diisocyanate according to the ratio of isocyanate to hydroxyl group of 1.70-1.90, controlling temperature of prepolymerization reaction, reacting, and introducing nitrogen gas for protection during the reaction process to obtain a prepolymer solution, mixing graphene and/or nano carbon fiber material (B), zinc oxide nanoparticles and/or titanium dioxide nanoparticles, and mixed amines and additive materials in an organic solvent to obtain chain extension solution solution, placing the prepolymer solution and the chain extension solution into the reactor, heating, reacting, removing the organic solvent, filtering reacted materials, continuously transporting the filtered material to a spinning box and ejecting a filament, cooling the filament, oiling, stretching, winding and curing. The mass ratio of component (A) and component (B) is 3-5:4-7. USE - Manufacture of functional spandex fiber. ADVANTAGE - The method enables manufacture of multifunctional-type spandex fiber having excellent far-infrared properties, antibacterial properties, elasticity, strength, and antistatic properties. DETAILED DESCRIPTION - Manufacture of functional spandex fiber involves (i) adding organic solvent, graphene and/or carbon nanofiber material (A), polyether glycol, adding diisocyanate according to the ratio of isocyanate to hydroxyl group of 1.70-1.90, controlling temperature of the prepolymerization reaction at 70-80degrees Celsius, reacting for 3.0-4 hours, and introducing nitrogen gas for protection during the reaction process to obtain a prepolymer solution, (ii) mixing graphene and/or nano carbon fiber material (B), zinc oxide nanoparticles and/or titanium dioxide nanoparticles, and mixed amines and additive materials in an organic solvent to obtain chain extension solution solution, (iii) placing the prepolymer solution and the chain extension solution into the reactor for mixing reaction, and heating the reactor to 150-208degrees Celsius for 45-48 minutes, after the reaction is over, removing the organic solvent under reduced pressure, and transporting the reacted raw materials in the reactor directly to the melt filter for filtration, at 218plus minus2degrees Celsius, (iv) continuously transporting the material filtered by the melt filter to a spinning box through two continuous metering pumps, in which the temperature in the spinning box is 215-218degrees Celsius, and ejecting the filament then through the spinning box assembly filter spinneret, in which the spinneret has 16 filaments and the filter density is 300 meshes, (v) cooling the jetted filament by the air duct, at wind temperature of 25degrees Celsius, wind speed of 0.3 m/S and rheumatism of 51degrees Celsius, (vi) after the air duct is cooled, oiling by 20 HZ oil roller, and stretching the guide wire by the guide roller, entering the stretched yarn into winding machine for winding at the winding speed of 580 M/minute, and curing at curing temperature of 40degreesC, for 18 hours, and preparing the functional spandex fiber by testing after curing. The mass ratio of the graphene and/or carbon nanofiber material (A) and graphene and/or carbon nanofiber material (B) is 3-5:4-7.