Modified polymer fiber for separating water and metal ions from polymer, fiber filter material as well as preparation method and application of fiber filter material

• Main Authors: BAO SHUMIN, KONG JUANJUAN, KONG FANXIN, PENG CHONG
• Format: Patent
• Language: Chinese; English
• Published: 09.08.2024
• Subjects: FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TEXTILES; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS

The invention provides a modified polymer fiber for separating water and metal ions from a polymer. The modified polymer fiber has a water contact angle of not less than 120 degrees in an air atmosphere, a contact angle of 0 degree in ISOPAR isoparaffin, and a water contact angle of not less than 150 degrees in ISOPAR isoparaffin. The modified polymer fiber provided by the invention has a rough and modified surface structure, can be made into a filter bed layer or a filter element, can be used for separating water and metal ions from a polymer, and is particularly suitable for separating water and metal ions from a polymer solution which has the property of a nonionic surfactant and shows a cloud point phenomenon. 本发明提供一种从聚合物中分离水和金属离子的改性聚合物纤维，所述改性聚合物纤维具有在空气氛围中不低于120°的水接触角、ISOPAR异链烷烃为0°的接触角，在ISOPAR异链烷烃中不低于150°的水接触角。本发明提供的改性聚合物纤维具有粗糙和改性的表面结构，制成过滤床层或者过滤滤芯，可以用于从聚合物中分离水和金属离子，尤其适用于从具有非离子表面活性剂性质并表现出浊点现象的聚合物溶液中分离出水以及金属离子。