The present invention discloses a TPU material capable of producing uniform textured extrusion effects, its preparation method, and its application in manufacturing cable jackets. The raw material composition of this TPU material, by weight parts, comprises: antioxidant 0–0.35 parts, diol 50–70 parts, diisocyanate 30–40 parts, chain extender 2–10 parts, polyacrylate with terminal hydroxyl groups 1–10 parts, catalyst 0–0.01 parts; The molar ratio of isocyanate groups in the diisocyanate to the total hydroxyl groups in the diol and chain extender is greater than 1. The preparation method includes: mixing and dispersing the diol with optional antioxidant and catalyst at 95–105°C to obtain precursor A; feeding precursor A, diisocyanate, chain extender into a first-stage twin-screw extruder for melt reaction and extrusion; feeding the extruded melt into a second-stage twin-screw extruder; and adding polyacrylate with terminal hydroxyl groups to the second-stage twin-screw extruder, followed by reaction extrusion to obtain the product.
Country Code: CN
Application Number: CN202210059887.6
