Abstract:
PURPOSE: A polypropylene / carbon nanotube composite is provided to be dispersed into a polypropylene matrix by improving miscibility with the polypropylene matrix. CONSTITUTION: A polypropylene / carbon nanotube composite comprises a carbon nanotube, and a compound layer containing polypropylene terminal group introduced to the wall of the carbon nanotube. The manufacturing method of the polypropylene / carbon nanotube composite comprises: a step of ultrasonic wave treating the mixture of organic solvent and carbon nanotube grafted by a compound having bromine terminal group; and a step of adding catalyst and polypropylene grafted by a compound having hydroxy group into the mixture, and then stirring the same.
Abstract:
PURPOSE: A manufacturing method of a nano-composite material using a palladium nano particle including silsesquioxane and a self-assembly of a carbon nanotube is provided to uniformly combined the palladium nano particle with the carbon nanotube. CONSTITUTION: A manufacturing method of a nano-composite material using a palladium nano particle including silsesquioxane and a self-assembly of a carbon nanotube comprises the following steps: forming octa(3-aminopropyl)octa sisesquioxane octahydro chloride powder; forming the palladium nanoparticle including the silsesquioxane; acid processing a multi-walled carbon nanotube; forming dispersed solution by dispersing the multi-walled carbon nanotube into deionized distilled water; vaporizing the multi-walled carbon nanotube on a substrate; and forming a nanocomposite(10) on the substrate.
Abstract:
본 발명은 복수개, 바람직하게는 8개의 지방족 티올 관능기(aliphatic thiol functional group)를 가진 폴리헤드럴 올리고머릭 실세스퀴옥산(Polyhedral oligomeric silsesquioxanes, POSS) 나노물질을 이용하여 경제적인 가격에 경도를 향상시키기 위한 자외선 경화용 우레탄 아크릴레이트 (Urethane acrylate)계 바인더 조성물에 관한 것이다. 이를 위하여 우레탄 아크릴레이트 올리고머; 및 지방족 티올 관능기를 가진 폴리헤드럴 올리고머릭 실세스퀴옥산(polyhedral oligomeric silsesquioxanes, 이하 POSS) 나노물질;을 포함하고, 자외선에 의해 경화되는 자외선 바인더 조성물이 제공될 수 있다. 이에 따르면 자외선 바인더 조성물에 있어서 코팅 시 시장에서 요구하는 연필강도 3H 내지 4H 이상의 물성이 경제적인 가격으로 구현되는 효과가 있다.
Abstract:
본 발명은 실세스퀴옥세인을 포함한 팔라듐 나노입자와 탄소나노튜브의 자기조직화에 의한 나노복합재료의 제조방법에 관한 것으로, 본 발명에 따라 제조된 나노복합재료는 물리적인 결합인 이온 결합에 의해 팔라듐 나노입자가 탄소나노튜브 벽면에 균일하게 결합되어 제조됨으로써 수소 저장 능력 및 열적 안정성이 우수하여, 촉매제 또는 감지제 등의 나노공학 분야의 신소재 개발 등 다양한 산업에 활용될 수 있다. 나노복합재료, 탄소나노튜브, 팔라듐, 실세스퀴옥세인, 이온 결합, 자기 조직화
Abstract:
A method for producing titanium dioxide nanostructure by UV irradiation is provided to need no membrane or additive for forming a nanostructure by virtue of self-assemblage of rod-like or hexahedral titanium dioxide three-dimensional nanostructure. A method for producing titanium dioxide nanostructure by UV irradiation comprises the steps of: (1) dispersing titanium dioxide into an ethanol solution having a pH controlled to 1-4 to obtain titanium dioxide nanoparticle colloid, followed by drying to obtain powder; (2) redispersing the powdered titanium dioxide nanoparticles into an aqueous acid solution having a pH controlled to 1-3 and applying ultrasonic waves thereto to obtain colloid in which nanoparticles are dispersed; (3) irradiating UV rays to the colloid in which nanoparticles are dispersed to activate the surface of the titanium dioxide nanoparticles; and (4) applying the colloid in which surface-activated titanium dioxide nanoparticles are dispersed onto a substrate, followed by drying.
Abstract:
Provided is a bulk mold compound composition, which has excellent dispersibility, surface roughness, dimensional stability, thermal stability and flame resistance, and is useful for producing electric materials and building materials. The bulk mold compound composition comprises: 100 parts by weight of a mixed polymer resin containing an unsaturated polyester resin and polystyrene resin; 170-400 parts by weight of aluminum hydroxide having a particle diameter of 1-15.0 micrometers; 20-200 parts by weight of hard calcium carbonate having a particle diameter of 0.1-8.0 micrometers; 5.0-30 parts by weight of glass fiber having a length of 3-12 mm; 10-30 parts by weight of chlorinated paraffin; 10-30 parts by weight of antimony trioxide; and 0.5-5 parts by weight of a surfactant.