Multifunctional thermal-insulation antibacterial elastic yarn and silk stockings
A multifunctional and elastic yarn technology, which is applied in the manufacture of conductive/antistatic filaments, socks, pantyhose, etc., can solve problems such as shedding and weak bonding force, and achieve the effect of improving elasticity and tensile strength
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[0029] Example 1
[0030] 1) Preparation of silver nanowires by solvothermal method:
[0031] In step 1), the polyvinylpyrrolidone was uniformly dispersed in ethylene glycol by magnetic stirring to form a solution with a mass fraction of 4%, and then ferric chloride and silver nitrate were dispersed in ethylene glycol to form a mass fraction of 0.8% solution, and then quickly add each 10mL ferric chloride and silver nitrate solution to 150mL polyvinylpyrrolidone solution and stir to form a dispersion, the interval is no more than 1 minute; transfer the dispersion to the polytetrafluoroethylene reactor In the medium, the reaction was kept at 100° C. for 8 hours, and centrifuged after cooling at room temperature. The supernatant was discarded and washed with deionized water and ethanol three times to obtain silver nanowires. The silver nanowires have an average diameter of 112 nanometers and an average length of 1.2 microns.
[0032] 2) Preparation of silver nanowire aerogel composit...
Example Embodiment
[0036] Example 2
[0037] Spinning with the silver nanowire aerogel composite powder prepared in Example 1:
[0038] The thermoplastic polyurethane is dried and sliced, then the silver nanowire aerogel composite powder and silane coupling agent KH550 are fed into the screw extruder to form a polyurethane melt at 220°C, and then add toluene diisocyanate trimer to obtain Mixed melt; among them, the mass ratio of thermoplastic polyurethane, silver nanowire aerogel composite powder, KH550, toluene diisocyanate trimer is 100:0.5:1:5; the mixed melt is extruded and combined by a screw extruder Convey to the spinning position of the spinning box; use a spinning pump to quantitatively and uniformly press the mixed melt to a spinneret with a diameter of 100 microns, and the mixed melt is extruded from the small holes of the spinneret at room temperature in the tunnel Cooling system of multi-functional thermal insulation antibacterial elastic yarn.
Example Embodiment
[0039] Example 3
[0040] Spinning with the silver nanowire aerogel composite powder prepared in Example 1:
[0041] The thermoplastic polyurethane is dried and sliced, and then it is fed with silver nanowire aerogel composite powder, silane coupling agent KH550 and commercial plasticizer bis(2-ethylhexyl) phthalate (DEHP) Screw extruder to form a polyurethane melt at 220°C, and then add toluene diisocyanate trimer to obtain a mixed melt; among them, thermoplastic polyurethane, silver nanowire aerogel composite powder, KH550, toluene diisocyanate trimer, The mass ratio of the plasticizer is 100:0.1:5:10:0.5; the mixed melt is extruded by the screw extruder and transported to the spinning position of the spinning box; the mixed melt is quantitatively and uniformly pressed by the spinning pump To a spinneret with a hole diameter of 100 microns, a small stream of mixed melt is extruded from the small holes of the spinneret, and cooled in a tunnel at room temperature to make a multifu...
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