Patent ID: 11174576

Abstract:
A type of easy-to-dye degradable polyester FDY and preparing method thereof are disclosed. The method for preparing an easy-to-dye degradable polyester FDY is to prepare a modified polyester FDY from a modified polyester melt with FDY process; wherein the material is a modified polyester; wherein the modified polyester has a molecular chain structure composed of terephthalic acid segments, ethylene glycol segments, 2,2,3,4,5,5-hexamethyl-3,4-hexanediol segments and tert-butyl branched heptanediol segments; wherein the modified polyester is dispersed by solid heteropolyacid powder calcined at a 400˜700° C. temperature. The preparing method has a simple process, modifying the polyester through solid heteropolyacid, tert-butyl branched heptanediol and 2,2,3,4,5,5-hexamethyl-3,4-hexanediol, which increases the hydrolysis rate of the polyester, improves the dyeing performance and prepares products with excellent mechanical properties.