Abstract:
본 발명은 폴리이미드 그래핀 복합재료 및 그 제조방법에 관한 것으로, 보다 상세하게는 개질된 그래핀과 염기성 촉매를 폴리이미드 전구체의 중합 단계에 첨가시켜, 기계적 강도와 전기 전도성을 동시에 향상시킬 뿐만 아니라 저온에서 이미드화 반응을 유도할 수 있게 하는 폴리이미드-그래핀 복합재료 및 그 제조방법에 관한 것이다.
Abstract:
PURPOSE: A method for manufacturing reduced graphene oxide and a reduced graphene oxide-polymer composite are provided to obtain the reduced graphene oxide and the reduced graphene oxide-polymer composite of superior electric conductivity. CONSTITUTION: A method for manufacturing reduced graphene oxide includes the following: Graphene oxide, which is obtained by treating graphite based on strong acid, is mixed with a halogen substituted aromatic compound. The mixture is stirred to obtain graphene oxide to which the halogen substituted aromatic compound is covalently bonded. The graphene oxide is thermally treated at a temperature between 100 and 450 degrees Celsius.
Abstract:
The present invention relates to a method of post-treating a carbon material by using a dehydrocyclization, a carbon material post-treated therewith and a polymer composite including the post-treated carbon material, and more particularly, to a method of post-treating a carbon material by using a dehydrocyclization, a carbon material post-treated therewith and a polymer composite including the post-treated carbon material in which a carbon material is dehydrocyclized at room temperature to cure a defect of the carbon material generally manufactured, such as a structural defect of the carbon material and an effective conjugated length of the carbon material is also increased to improve an electrical conductivity.
Abstract:
The present disclosure relates to a polyimide-graphene composite material and a method for preparing the same, and more specifically, to a polyimide-graphene composite material prepared by adding a modified graphene and a basic catalyst during a polymerization of a polyimide precursor to improve mechanical strength and electrical conductivity and enable an imidization at low temperatures; and to a method for preparing the same.
Abstract:
본 발명은 탈수소고리화 반응을 이용한 탄소재료의 후처리 방법, 이를 통하여 후처리 된 탄소재료 및 이를 포함하는 고분자복합재료에 관한 것으로, 보다 상세하게는 일반적으로 제조되는 탄소재료의 결함(defect)을 치유하기 위하여, 탄소재료를 상온에서 탈수소고리화 반응시킴으로써 탄소재료의 구조적 결함을 치유함과 동시에, 탄소재료의 유효 공액사장(effective conjugated length)을 증대시켜 전기전도성의 향상을 가져오는 탈수소고리화 반응을 이용한 탄소재료의 후처리 방법, 이를 통하여 후처리 된 탄소재료 및 이를 포함하는 고분자복합재료에 관한 것이다.