Method for preparing meta-aramid fiber

The invention discloses a method for preparing meta-aramid fiber. The method comprises the following steps of: adding meta-phenylene diamine into a polar solvent; reducing the temperature to be between -10 DEG C and 10 DEG C; gradually adding meta-phthaloyl chloride for reaction; regulating the pH o...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SONG XIQUAN, LV JIPING, PAN SHIDONG, SONG CUIYAN
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
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