Method for preparing GO-CNT composite fibers GO-Graphene composite fibers GO-Graphene-CNT composite fibers

• Main Authors: PARK, SANG YOON, YEO, CHANG SU, SHIN, MIN KYOO, KIM, HYUK JOON, CHO, YUN JAE, CHO, KANG RAE
• Format: Patent
• Language: English; Korean
• Published: 29.12.2017
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; ELECTRICITY; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SPINNING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE

The present invention provides a method for manufacturing a graphene oxide/carbon nanotube composite fiber having a dual junction structure, a graphene oxide/graphene composite fiber or a graphene oxide/graphene/carbon nanotube composite fiber, comprising the steps of: a) spinning a graphene oxide dispersion solution to a coagulation bath containing a first coagulation ingredient to manufacture a first gel fiber; b) spinning a carbon nanotube dispersion solution, a graphene dispersion solution or a mixed solution thereof to a coagulation bath containing the first coagulation ingredient to manufacture a second gel fiber, which is performed in parallel with the a) step; and c) bonding the first gel fiber and the second gel fiber, which are manufactured at the same time, to each other, and cleaning and drying the same. A graphene oxide/carbon nanotube composite fiber, a graphene oxide/graphene composite fiber or a graphene oxide/graphene/carbon nanotube composite fiber manufactured by the present invention can be used as an electrode material of a battery, a super capacitor and the like because of high porosity and high conductivity. 본 발명은 a) 그래핀산화물 분산액을 제1 응고성분을 포함하는 응고욕에 방사시켜 제1 젤 섬유를 제조하는 공정; 및 b) 탄소나노튜브 분산액 또는 그래핀 분산액 또는 이의 혼합 분산액을 제1 응고성분을 포함하는 응고욕에 방사시켜 제2 젤 섬유를 제조하는 공정이 동시에 이루어지고, c) 상기 동시 제조된 제1 젤 섬유와 제2 젤 섬유를 서로 접합하고, 수세, 건조하는 것을 특징으로 하는, 이종 접합구조를 가지는 그래핀산화물/탄소나노튜브 복합섬유, 그래핀산화물/그래핀 복합섬유 또는 그래핀산화물/그래핀/탄소나노튜브 복합섬유 제조 방법을 제공한다.