POLYAMIDE 5X FIBER, PREPARATION METHOD THEREFOR, AND USE THEREOF

摘要

The present application discloses a polyamide 5X fiber, the raw materials for producing same at least include: 1,5-pentanediamine and long-carbon-chain dibasic acid; alternatively, a polyamide 5X obtained by polymerization of 1,5-pentanediamine and long-carbon-chain dibasic acid as monomers. The 1,5-pentanediamine or the long-carbon-chain dibasic acid is prepared by a bio-based raw material by means of a fermentation method or an enzymatic conversion method, and the long-carbon-chain dibasic acid is at least one of aliphatic long-carbon-chain dibasic acid of C6-20. The polyamide 5X fiber includes pre-oriented yarn, textured yarn, fully drawn yarn, a staple fiber, industrial yarn, and bulked continuous filaments and monofilaments, preferably pre-oriented yarn, textured yarn, and fully drawn yarn. The used production raw materials of the polyamide 5X resin are made by means of a biological method and are green materials. The polyamide 5X fiber has good mechanical properties, dimensional stability, softness, quick-drying performance, and dyeing properties.