POLYAMIDE 5X INDUSTRIAL YARN, PREPARATION METHOD THEREFOR AND USE THEREOF

摘要

Disclosed in the present invention is a polyamide 5X industrial yarn. The described polyamide 5X industrial yarn has a heat-resistant breaking strength retention rate of ≥ 90% after being treated at 180°C for 4 h; the heat-resistant breaking strength retention rate is ≥ 90% after being treated at 230°C for 30 min; and a dry heat shrinkage rate is ≤ 8.0%. The described polyamide 5X industrial yarn is widely used in the fields of sewing threads, tire cords, air bag yarns, release cloth, krama, canvas, safety belts, ropes, fishing nets, industrial filter cloth, conveyor belts, parachutes, tents, bags and suitcases.