Polyester hydrolysis-resistant monofilament and preparation method thereof

• Main Authors: YANG RONGJIE, LIANG JINHUA, ZHENG CHAOHUI, GONG BIN, LIANG WENYAO, ZHANG CHONGBIN, LIN GUOXIN, LI JUNXING, LIANG WEICAN, ZENG QIXIANG
• Format: Patent
• Language: Chinese; English
• Published: 08.08.2023
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TEXTILES

The invention discloses a polyester hydrolysis-resistant monofilament and a preparation method thereof, and belongs to the technical field of monofilaments. Comprising the following components: polyester, carbodiimide, an ethylene-ethyl acrylate copolymer, polyethylene, magnesium silicate and an additive. The preparation method of the polyester hydrolysis-resistant monofilament comprises the following steps: firstly, processing a mixture through a granulator to obtain hydrolysis-resistant master batches, respectively drying polyester chips and the hydrolysis-resistant master batches, feeding into a single-screw horizontal spinning machine after passing through an automatic metering system and a mixing system, and spinning through a metering pump to obtain the polyester hydrolysis-resistant monofilament. After cooling, carrying out multiple stretching and shaping to obtain the hydrolysis-resistant monofilament. The method has the beneficial effect of improving the water-resistant degree and quality of the mono