US 12,258,682 B2
Magnetic fiber material, preparation method for same, and applications thereof
Linge Wang, Guangzhou (CN); Yifan Jia, Guangzhou (CN); Qianqian Yu, Guangzhou (CN); and Yang Wu, Guangzhou (CN)
Assigned to SOUTH CHINA UNIVERSITY OF TECHNOLOGY, Guangzhou (CN)
Appl. No. 17/784,968
Filed by SOUTH CHINA UNIVERSITY OF TECHNOLOGY, Guangzhou (CN)
PCT Filed Oct. 20, 2020, PCT No. PCT/CN2020/122097
§ 371(c)(1), (2) Date Jun. 13, 2022,
PCT Pub. No. WO2021/139306, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 202010025304.9 (CN), filed on Jan. 10, 2020.
Prior Publication US 2023/0011363 A1, Jan. 12, 2023
Int. Cl. D01D 5/00 (2006.01); D01D 1/02 (2006.01); D01F 8/04 (2006.01); D01F 1/10 (2006.01); D01F 6/44 (2006.01); D01F 6/50 (2006.01); D01F 6/92 (2006.01); D01F 6/94 (2006.01); D01F 11/00 (2006.01)
CPC D01D 5/0046 (2013.01) [D01D 1/02 (2013.01); D01F 8/04 (2013.01); D01F 1/10 (2013.01); D01F 6/44 (2013.01); D01F 6/50 (2013.01); D01F 6/92 (2013.01); D01F 6/94 (2013.01); D01F 11/00 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for preparing magnetic
fibrous materials, comprising:
(1) preparation of a spinning solution: comprising dissolving a polymer and a magnetic load raw material in a solvent to obtain a uniform spinning solution, wherein the polymer is at least one of the following substances: polyethylene terephthalate, polyvinyl alcohol, and polystyrene-polybutadiene-polystyrene block copolymer;
(2) preparation of a reactive coagulation bath solution comprising adding a solute component that reacts with the magnetic load raw material into a coagulation bath solvent to obtain a uniform reactive coagulation bath solution; and
(3) electrospinning the uniform spinning solution obtained in step (1) to produce fiber, and collecting the produced fiber with the uniform reactive coagulation bath solution obtained in step (2), so that the magnetic load raw material in the fiber reacts in situ in situ with the solute in the uniform reactive coagulation bath solution to obtain the magnetic fibrous material.