Preparation method of p-phenylenebenzobisoxazole copolymer and compression resistance enhanced PBO (poly (p-phenylene benzobisoxazole)) fiber

The invention belongs to the technical field of high-performance material synthesis, and particularly relates to a preparation method of a p-phenylenebenzobisoxazole copolymer and a compression resistance enhanced PBO fiber, and the preparation method comprises the following steps: carrying out grad...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	GUO CHENG, LIU WEI, ZHONG YUHUA, LIU ZONGFA, MENG ZHAORUI, ZHANG DIANBO, CHEN XIANGDONG, XIAO ZUOXU, LIU QUN, PENG XIANYU, DAI YONG, BAI JINWANG
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 belongs to the technical field of high-performance material synthesis, and particularly relates to a preparation method of a p-phenylenebenzobisoxazole copolymer and a compression resistance enhanced PBO fiber, and the preparation method comprises the following steps: carrying out gradient heating condensation polymerization on 4, 6-diamino resorcinol hydrochloride, terephthalic acid and 1, 3, 5-tri (4-carboxyphenyl) benzene in a polyphosphoric acid system to obtain the PBO copolymer. The preparation method comprises the following steps: adding p-phenylenebenzobisoxazole into a PBO prepolymer solution, carrying out high polymerization on the PBO prepolymer solution in a twin-screw extruder to obtain a p-phenylenebenzobisoxazole copolymer, carrying out dry-jet wet-spinning fiber forming, and carrying out two times of washing, primary drying, oiling, secondary drying and winding on the formed fiber to obtain the PBO fiber. By adding the rigid crosslinking monomer, the excellent performance of the