Abstract:
PURPOSE: A multilayer coating layer including nanocarbon and polymer and a coated substrate having the same are provided to enhance process efficiencies and lower fabrication costs by forming a coating layer which has a laminating structure on a base substrate. CONSTITUTION: A multilayer coating layer including nanocarbon and polymer and a coated substrate having the same comprises a first polymer-coated layer(21) and a nanocarbon-coated layer(23). The first polymer-coated layer is composed of a first polymer having an amine functional group and a hydroxy group. The first polymer-coated layer is formed by a wet coating method using the first polymer solution. The nanocarbon-coated layer is formed on top and bottom of the polymer-coated layer. The nanocarbon-coated layer is formed into a nanocarbon material containing nanocarbon. The nanocarbon-coated layer comprises one or more of a graphene, an oxidation graphene, a multilayer graphene nanocarbon, an oxidized multilayer graphene nanocarbon, a functionalized graphene, a functionalized multilayer graphene nanocarbon, a single-walled carbon nanotube, a functionalized single-walled carbon nanotube, a multi-walled carbon nanotube and a functionalized multi-walled carbon nanotube.
Abstract:
본 발명은 탄소나노튜브 전도성 박막에 티탄늄 알콕시화물(titanium alkoxide)용액 및 반응개시 용액을 이용하여 후처리 공정을 진행함으로써 탄소나노튜브 전도막의 물성을 크게 개선시키는 방법 및 이 방법으로 인해 형성된 전도성 박막 조성물에 관한 것이다. 이 방법은 다양한 방법으로 형성된 탄소나노튜브 전도성막에 티타늄 알콕시화물(titanium alkoxide) 후처리 용액과 반응개시 용액을 처리하여, 티타늄 알콕시화물(titanium alkoxide)의 분해 및 물리적, 화학적 결합 반응을 통해 탄소나노튜브 전도막의 기계적, 전기적 특성을 효율적으로 향상시키기 때문에 탄소나노튜브가 적용되는 다양한 부품 또는 제품 분야에 활용할 수 있다.
Abstract:
본 발명은 구배고분자(gradient polymer)를 이용한 탄소나노튜브(carbon nanotube; CNT)의 분산 방법 및 그 방법으로 제조된 탄소나노튜브 분산용액에 관한 것으로, 용매에서의 탄소나노튜브의 용해성과 분산성을 향상시키기 위한 것이다. 본 발명에 따르면, 전이금속 화합물(M t n+ X n )과 리간드(L)를 포함하는 전이금속 착물을 서로 다른 두가지의 단량체가 포함된 유기화합물과 함께 용매 내에서 원자이동 라디칼 중합(Atom Transfer Radical Polymerization)으로 형성된 유기 라디칼을 이용하여 구배고분자(gradient polymer)를 형성한다. 구배고분자는 아로마틱계를 포함하고 있으며 용매내에서 탄소나노튜브와 함께 넣고 분산하면, 구배고분자는 탄소나노튜브와 비공유결합하여 용매 내에서 탄소나노튜브를 분산시킨다. 구배고분자, 탄소나노튜브, 분산, 수용액, 비공유
Abstract:
본 발명은 스타이렌(styrene)과 디메틸아미노에틸메타아클레이트(dimethyl amino ethyl methacrylate)로 이루어진 랜덤 고분자(random copolymer)를 이용한 탄소나노튜브(CNT, carbon nanotube)의 분산 방법 및 그 방법으로 제조된 탄소나노튜브 분산용액에 관한 것으로, 유기 용매에서의 탄소나노튜브의 용해성과 분산성을 향상시키기 위한 것이다. 본 발명에 따르면, 전이금속 화합물(M t n+ X n )과 리간드(L)를 포함하는 전이금속 착물을 유기물과 함께 유기 용매내에서 원자이동라디칼반응(Atom Transfer Radical Polymerization)으로 랜덤 고분자(random copolymer)를 준비한다. 랜덤 고분자는 스타이렌을 포함하고 있으며 유기용매 내에서 탄소나노튜브와 함께 넣고 분산하면, 랜덤 고분자와 탄소나노튜브와 비공유결합하여 유기용매 내에서 탄소나노튜브를 분산시킨다.
Abstract:
PURPOSE: A method for manufacturing a substrate having a carbon nanotube conductive layer with an improved adhesive property and to improve properties of the carbon nanotube conductive layer by physically and chemically bonding carbon nanotubes and polyimide precursors. CONSTITUTION: A method for manufacturing a substrate having a carbon nanotube conductive layer with an improved adhesive property comprises: a base coating step(S23) for forming a polyimide precursor layer by coating a base substrate with a polyimide precursor; a carbon nanotube coating step(S25) for forming a carbon nanotube layer by coating the polyimide precursor layer with a carbon nanotube solution; and a curing step(S27) for forming a polyimide layer and a carbon nanotube conductive layer by curing the polyimide precursor layer and the carbon nano tube layer.
Abstract:
PURPOSE: A method for dispersing carbon nanotubes using a gradient polymer is provided to smoothly decentralize a carbon nanotube in an organic solvent by performing a noncovalent bond of a gradient polymer containing aromatic materials. CONSTITUTION: A method for dispersing carbon nanotubes using a gradient polymer comprises the steps of: preparing an organic compound forming organic radicals; mixing the organic compound and a transition metal complex containing a transition metal oxide(Mtn+Xn) and ligand(L); forming a gradient polymer with organic radicals by polymerizing the mixture according to Atom Transfer Radical Polymerization; dispersing the gradient polymer in a carbon nanotube to performing a noncovalent bond of the gradient polymer and the carbon nanotube, and dispering the carbon nanotube in the organic solvent.
Abstract:
PURPOSE: A purity improvement method of a water-dispersed carbon nanotube solution, and the water-dispersed carbon nanotube solution manufactured therefrom are provided to use an organic solvent for selectively remove a surplus dispersing agent. CONSTITUTION: A purity improvement method of a water-dispersed carbon nanotube solution comprises the following steps: mixing a raw material water-dispersible carbon nanotube solution(10) containing a surplus dispersing agent(18), with an organic solvent(20) to form a mixed solution; rotating the mixed solution to form a colloid particle with the surplus dispersing agent around a particle of the raw material water-dispersible carbon nanotube solution; phase separating the water-dispersible carbon nanotube solution(10a) from the organic solvent, for extracting the colloid particle; and separating the water-dispersible carbon nanotube solution.