AROMATIC POLYAMIDE FILAMENT AND METHOD OF MANUFACTURING THE SAME

摘要

An aromatic polyamide filament and a manufacturing method thereof are provided to have narrow PDI(Polydispersity Index) and large ACS(Apparent Crystal Size). When manufacturing the aromatic polyamide polymer, the multiple pipe type of monomer and polymer solution supply pipe(11) includes alternately repeated inside and outside passages. One selected from polymerization solvent(B) including the dissolved aromatic diacid chloride(A) and an aromatic diamine is alternately into the polymerization reactor(20) through the respective inside and outside passages.