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公开(公告)号:KR101074027B1
公开(公告)日:2011-10-17
申请号:KR1020090018146
申请日:2009-03-03
Applicant: 한국과학기술연구원
CPC classification number: D01F9/14 , B82Y30/00 , B82Y40/00 , C01B32/194 , C01B32/23 , D01D5/0069 , D01D5/0076 , D01D5/14 , D01F1/10
Abstract: 본발명은 1~1000 ㎚의직경을갖는고분자나노섬유또는탄소나노섬유의표면및 내부중 적어도한 곳에그래펜들이분산되어있으며, 상기그래펜들은단층그래펜들(monolayer graphenes)과두께 10 ㎚이하인다층그래펜들(multilayer graphenes) 중적어도일 종인것을특징으로하는그래펜복합나노섬유및 그제조방법을제공한다. 본발명에따라제조된그래펜복합나노섬유는, 그래펜의특이한구조와물성을이용하여발광디스플레이, 마이크로공진기, 트랜지스터, 센서, 투명전극, 연료전지, 태양전지, 이차전지, 복합재료등에응용할수 있다.
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公开(公告)号:KR1019940006323B1
公开(公告)日:1994-07-16
申请号:KR1019910007225
申请日:1991-05-03
Applicant: 한국과학기술연구원
IPC: A61K36/24
Abstract: This invention relates to an extraction method of indole alkaloid from Catharanthus roseus using high pressure and high density carbon dioxide solvent. The method comprises: a) placing Catharanthus in contact with 15-100 deg.C carbon dioxide under 30-500 atm and extracting indole alkaloid; and b) separating indole alkaloid and solvent at 1-10 atm and -30 - 20 deg.C. Using this extration method, there is no residual solvent problem.
Abstract translation: 本发明涉及使用高压和高密度二氧化碳溶剂从长春花提取吲哚生物碱的提取方法。 该方法包括:a)将长春花与30-100度二氧化碳置于30-500大气压下,提取吲哚生物碱; 和b)在1-10atm和-30-20℃下分离吲哚生物碱和溶剂。 使用这种方法,没有残留的溶剂问题。
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公开(公告)号:KR1020100099586A
公开(公告)日:2010-09-13
申请号:KR1020090018146
申请日:2009-03-03
Applicant: 한국과학기술연구원
CPC classification number: D01F9/14 , B82Y30/00 , B82Y40/00 , C01B32/194 , C01B32/23 , D01D5/0069 , D01D5/0076 , D01D5/14 , D01F1/10
Abstract: PURPOSE: A graphene composite nanofiber and a manufacturing method thereof are provided to secure the excellent mechanical property and electrical property of a graphene. CONSTITUTION: A graphene composite nanofiber contains multiple graphenes concentrated on one side inside a polymer nanofiber or a carbon nano fiber with the diameter of 1~1,000 nanometers. The graphenes are either monolayer graphenes or multilayer graphenes. A manufacturing method of a graphene composite nanofiber comprises the following steps: preparing a spinning solution containing the graphenes; and spinning the spinning solution.
Abstract translation: 目的:提供石墨烯复合纳米纤维及其制造方法,以确保石墨烯的优异机械性能和电性能。 构成:石墨烯复合纳米纤维含有聚合物纳米纤维一侧或多个直径为1〜1000纳米的碳纳米纤维的多个石墨烯。 石墨烯是单层石墨烯或多层石墨烯。 石墨烯复合纳米纤维的制造方法包括以下步骤:制备含有所述石墨烯的纺丝溶液; 并纺丝纺丝溶液。
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