公开(公告)号：KR100874219B1

公开(公告)日：2008-12-15

申请号：KR1020060108601

申请日：2006-11-03

Applicant: 한국과학기술원

Inventor： 최성민 ,  도창우 ,  김태환

IPC: C01B31/02 ,  B82B3/00 ,  B82Y40/00

CPC classification number: B82Y30/00 ,  B82Y40/00 ,  C01B32/174 ,  C01B2202/02 ,  C01B2202/28 ,  Y10T428/292

Abstract: Disclosed are a process for preparing single wall carbon nanotubes with surfactant-coated surface which comprises coating a surface of the carbon nanotubes with a surfactant by adding water to a mixture of the carbon nanotubes and the surfactant, ultrasonically treating the mixture, treating the ultrasonically treated mixture with a initiator, and applying a surfactant to the surface of the resultant carbon nanotubes and, in addition, the carbon nanotubes with surfactant-coated surface prepared by the above process. The formed carbon nanotubes of the present invention can maintain a stable dispersion condition regardless of change of an external environment and be stably dispersed in water even when putting the carbon nanotubes into the water after completely drying the same, so that the carbon nanotubes can be widely used in developing and manufacturing various products.

Abstract translation: 本发明公开了一种制备具有表面活性剂涂覆表面的单壁碳纳米管的方法，该方法包括通过向碳纳米管和表面活性剂的混合物中加水来对碳纳米管表面进行涂覆，超声处理该混合物，处理超声处理 与引发剂的混合物，并且将表面活性剂施加到所得碳纳米管的表面以及另外通过上述方法制备的具有表面活性剂涂覆表面的碳纳米管。 本发明所形成的碳纳米管即使在将碳纳米管完全干燥后放入水中，也能够不受外部环境的变化而维持稳定的分散状态，并且能够稳定地分散于水中，从而可以广泛地使碳纳米管 用于开发和制造各种产品。

公开(公告)号：KR101182386B1

公开(公告)日：2012-09-11

申请号：KR1020100035496

申请日：2010-04-16

Applicant: 한국과학기술원

Inventor： 최성민 ,  도창우 ,  장형식

IPC: B82B3/00 ,  C01B31/02

Abstract: 본 발명은 고분자와 정제수를 혼합하여 고분자가 물에 잘 섞이도록 강력 교반하여 고분자시스템을 만드는 단계와, 계면활성제로 코팅된 단일벽 탄소나노튜브(p-SWNT)와 고분자시스템을 혼합하는 단계를 포함하는 것을 특징으로 하는 단일벽 탄소나노튜브 초구조체의 제조방법이다.
본 발명의 고분자 시스템을 이용한 초구조체 제조방법은 무수히 많은 고분자의 종류 및 그들의 다양한 상변화 특징들을 고려해 볼 때, 그 이용가능성이 매우 클 것으로 기대된다.

公开(公告)号：KR1020110115903A

公开(公告)日：2011-10-24

申请号：KR1020100035496

申请日：2010-04-16

Applicant: 한국과학기술원

Inventor： 최성민 ,  도창우 ,  장형식

IPC: B82B3/00 ,  C01B31/02

CPC classification number: B82B3/0009 ,  C01B32/158 ,  C01B32/18 ,  C01B2202/02 ,  C01B2202/24

Abstract: 본 발명은 고분자와 정제수를 혼합하여 고분자가 물에 잘 섞이도록 강력 교반하여 고분자시스템을 만드는 단계와, 계면활성제로 코팅된 단일벽 탄소나노튜브(p-SWNT)와 고분자시스템을 혼합하는 단계를 포함하는 것을 특징으로 하는 단일벽 탄소나노튜브 초구조체의 제조방법이다.
본 발명의 고분자 시스템을 이용한 초구조체 제조방법은 무수히 많은 고분자의 종류 및 그들의 다양한 상변화 특징들을 고려해 볼 때, 그 이용가능성이 매우 클 것으로 기대된다.

公开(公告)号：KR1020080040527A

公开(公告)日：2008-05-08

申请号：KR1020060108601

申请日：2006-11-03

Applicant: 한국과학기술원

Inventor： 최성민 ,  도창우 ,  김태환

IPC: C01B31/02 ,  B82B3/00 ,  B82Y40/00

CPC classification number: B82Y30/00 ,  B82Y40/00 ,  C01B32/174 ,  C01B2202/02 ,  C01B2202/28 ,  Y10T428/292 ,  B01J19/10

Abstract: Carbon nanotubes that can be dispersed into an aqueous solution without reagglomeration phenomenon are provided, and a method for preparing the carbon nanotubes is provided. A method for preparing surfactant-coated carbon nanotubes comprises the processes of: (i) mixing carbon nanotubes and a surfactant at a ratio of 1:2 to 2:5(w/w), and removing oxygen from the mixture to obtain a mixture; (ii) mixing the obtained mixture with oxygen-free water at a ratio of 0.7:100 to 0.8:100(v/v), and supersonically treating the mixture with a frequency of 15 to 20 kHz for 1 to 1.5 hour to disperse the carbon nanotubes into the mixed solution to obtain a dispersion; and (iii) treating the obtained dispersion with an initiator at a molar ratio of 1 to 5% relative to the amount of the surfactant, and coating the surfactant on surfaces of the carbon nanotubes while stirring the initiator-treated dispersion at 55 to 65 deg.C for 12 to 24 hours. The carbon nanotubes are single wall carbon nanotubes(SWNT). The surfactant is cetyltrimethyl ammonium 4-vinylbenzoate(CTVB). The initiator is 2,2'-azobis[2-(2-imidazolin-2-yl)propane]dihydrochloride. The method further comprises the process of centrifuging 100,000 g to 150,000 g of a reactant for 3 to 5 hours, and obtaining a supernatant from the centrifuged reactant to dry the supernatant after performing the process (iii).

Abstract translation: 提供了可以分散在水溶液中而没有聚集现象的碳纳米管，并且提供了制备碳纳米管的方法。 制备表面活性剂涂覆的碳纳米管的方法包括以下工艺：（i）以1:2至2:5（w / w）的比例混合碳纳米管和表面活性剂，并从混合物中除去氧气以获得混合物 ; （ii）以0.7:100至0.8:100（v / v）的比例将获得的混合物与无氧水混合，并以15至20kHz的频率将混合物超声处理1至1.5小时，以分散 将碳纳米管加入到混合溶液中以获得分散体; 和（iii）以相对于表面活性剂的量为1〜5％的摩尔比用引发剂处理得到的分散体，并将表面活性剂涂布在碳纳米管的表面上，同时在55至65℃下搅拌引发剂处理的分散体 C于12至24小时。 碳纳米管是单壁碳纳米管（SWNT）。 表面活性剂是4-乙烯基苯甲酸十六烷基三甲基铵（CTVB）。 引发剂是2,2'-偶氮二[2-（2-咪唑啉-2-基）丙烷]二盐酸盐。 该方法还包括将100,000g至150,000g反应物离心3至5小时的方法，并且在进行方法（iii）之后从离心的反应物中得到上清液以干燥上清液。