Preparation method of recycled acrylic fiber and recycled acrylic fiber production

The invention belongs to the field of acrylic fiber recycling, and discloses a preparation method of recycled acrylic fiber, which comprises the following steps of (1) performing impunity removal, water washing and drying on a recycled raw material to obtain a recycled dissolved raw material; (2) di...

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Bibliographische Detailangaben
Hauptverfasser:	GAO YAN, LI QINGHAI, ZHAO XIANQUAN, XU JIAWEI, GUO DADONG, LIANG DONGDONG, SHEN JIA, LI HONGCHEN, SHEN ZENGLU, MA JUNFENG, GUO ZHENYU, CHEN DAZHI, LI ZHENFENG, CAO RANXI, YUE FUSHENG, DUAN ZHIGUO, GU KEFU, SHEN HUANHUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G 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 COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING 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 WORKING-UP
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Beschreibung
Zusammenfassung:	The invention belongs to the field of acrylic fiber recycling, and discloses a preparation method of recycled acrylic fiber, which comprises the following steps of (1) performing impunity removal, water washing and drying on a recycled raw material to obtain a recycled dissolved raw material; (2) dissolving the recycled dissolved raw material obtained in (1), filtering and purifying to obtain a recycled acrylic fiber solution; (3) spinning the recycled acrylic fiber solution obtained in (2) to obtain primary acrylic fiber; (4) molding and drying the primary acrylic fiber obtained in (3) to obtain the recycled acrylic fiber.The invention further provides a recycled acrylic fiber, of which the breaking strength is greater than or equal to 2.0 CN/dtex, the elongation at break is greater thanor equal to 30%, and the moisture regain is 1.8 to 2.3%.The recycled acrylic fiber produced by the method provided by the invention has similar performance to that of non-recycled acrylic fiber, the surface grooves and/or dep