The present invention discloses a wear-resistant and stain-resistant nylon monofilament and a preparation method thereof, belonging to the technical field of nylon monofilaments. The preparation method comprises the following steps: Step S1, adding caprolactam into a reaction kettle, evacuating, heating and stirring for melting, then dropwise adding an organic base catalyst solution, heating to 100–120°C for reflux reaction for 40 min, then adding an initiator and cyclic siloxane respectively for continuous reflux reaction for 10–15 min, quenching the reaction with acetic acid, cooling to room temperature, adding excess acetonitrile for standing precipitation, filtering the precipitate and pelletizing to obtain wear-resistant and stain-resistant nylon chips; Step S2, adding the wear-resistant and stain-resistant nylon chips into a twin-screw extruder for melt spinning, followed by water cooling, oiling, hot drawing and air-cooling winding to obtain the wear-resistant and stain-resistant nylon monofilament. The nylon monofilament prepared by the present invention has better toughness, and the monofilament surface is denser and smoother with a lower dynamic friction coefficient, improving the wear resistance and stain resistance.
Country Code: CN
Application Number: CN202410200457.0
