Porous PBT fiber FDY filaments and preparation method thereof

The invention relates to porous PBT fiber FDY filaments and a preparation method thereof. Porous PBT fiber FDY filaments are prepared by spinning from modified PBT polyester with a porous spinneret; an arranging mode of spinneret holes on the porous spinneret is in an elliptical arrangement, a cente...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	CHEN MING, NIU ZANGZANG, FAN HONGWEI, DING ZHUJUN, SUN XIAOHUA, LUO KAIMIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to porous PBT fiber FDY filaments and a preparation method thereof. Porous PBT fiber FDY filaments are prepared by spinning from modified PBT polyester with a porous spinneret; an arranging mode of spinneret holes on the porous spinneret is in an elliptical arrangement, a center of spinneret holes is positioned on a concentric ellipse, the concentric ellipse comprises a series of ellipses, long axes of all ellipses are collinear, and short axes of all ellipses are collinear. The porous PBT fiber FDY filaments are prepared by metering, extrusion, cooling, oiling, stretching, heat setting, and reeling of modified PBT polyester, and the preparation method of the modified PBT polyester comprises the following steps: a reaction is carried out for terephthalic acid and 1,4-butanediol, in order to obtain 1,4-butylene terephthalate; ester of dihydric alcohol and terephthalic acid obtained by reaction between added terephthalic acid and dihydric alcohol containing branched chains is prepared, and