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Применить Всего найдено 6. Отображено 6.
04-04-2018 дата публикации

CROSSLINKABLE PAI/CERAMIC SOL NANOHYBRID INSULATING VARNISH MATERIAL AND PREPARATION METHOD THEREOF

Номер: KR1020180033967A
Автор: KANG, DONG PIL, JEON, JAE HONG, LEE, DAE HO, HAN, SE WON
Принадлежит:

The present invention relates to a crosslinkable polyamideimide (PAI)/ceramic sol nanohybrid insulating varnish material and a preparation method thereof. More specifically, the present invention relates to the PAI/ceramic sol nanohybrid insulating varnish material and the preparation method thereof, wherein the PAI/ceramic sol nanohybrid insulating varnish material is prescribed as a latent curing agent after synthesizing a modified PAI of which an isocyanate group of the terminal is blocked so that the crosslinkable PAI/ceramic sol nanohybrid insulating varnish material has excellent surface lubricating properties and self-bonding properties while satisfying adhesive force, crack resistance, high thermal conductivity and high insulating properties even in case of bending/twisting deformation after the PAI/ceramic sol nanohybrid insulating varnish material is coated on the surface of a metal conductor. The preparation method of the present invention comprises: a first step of synthesizing ...

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Номер записи: 1
04-10-2018 дата публикации

POLYIMIDE/CERAMIC SOL NANOHYBRID FILM MATERIAL AND METHOD OF MANUFACTURING SAME

Номер: KR101892449B1
Автор: KANG DONG PIL, JEON JAE HONG
Принадлежит: KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE

The present invention relates to a polyimide/ceramic sol nanohybrid film material and a method of manufacturing the same. The method comprises the steps of: synthesizing a bi-reactive structure organic material capable of making a reaction with polyamic acid and reactive silane, respectively; synthesizing a chain silane by using the bi-reactive structure organic material and the reactive silane; making the chain silane reacted on a surface of the ceramic sol surface to graft the same; mixing the ceramic sol grafted with the chain silane with the polyamic acid to form a hybrid varnish solution; casting and drying the varnish solution to form a film, making the ceramic sol reacted with the polyamic acid through heat treatment, and proceeding imidization of the polyamic acid so as to form a polyimide/ceramic sol nanohybrid film material. Accordingly, a surface of the colloidal ceramic sol is grafted with a chain organosilane, and then mixed with the polyamic acid to form a coating membrane ...

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Номер записи: 2
08-02-2017 дата публикации

폴리디메틸실록산-폴리아미드이미드계 공중합체를 이용한 세라믹졸 나노하이브리드 소재 및 이의 제조방법

Номер: KR0101704593B1
Автор: 박진희, 강동필, 이대호, 전제홍, 한세원
Принадлежит: 한국전기연구원

... 본 발명은 폴리디메틸실록산-폴리아미드이미드계 공중합체를 이용한 세라믹졸 나노하이브리드 소재 및 이의 제조방법에 관한 것으로, 더욱 상세하게는 반응성이 높은 이소시안기를 말단에 포함하는 폴리아미드이미드와 이와 반응할 수 있는 폴리디메틸실록산을 이용함으로써, 윤활성, 유연성, 발수성, 내구성, 내열성 및 내마모성이 우수한 폴리디메틸실록산-폴리아미드이미드계 공중합체를 이용한 세라믹졸 나노하이브리드 소재 및 이의 제조방법에 관한 것이다.이러한 본 발명은, 디이소시아네이트 화합물과 산무수물 화합물을 중합하여 사슬의 말단 중 일부에 이소시안기를 가지는 폴리아미드이미드를 합성하는 제1단계; 이소시안기를 가지는 폴리아미드이미드 사슬 중 일부에 수산기 또는 에테르기가 캡핑(capping)되도록, 폴리아미드이미드에 글리콜에테르류 및 알코올류 중 어느 하나 이상을 첨가하는 제2단계; 글리콜에테르류 및 알코올류 중 어느 하나 이상이 첨가된 폴리아미드이미드에 폴리디메틸실록산(PDMS)을 반응시켜 폴리디메틸실록산-폴리아미드이미드계 공중합체를 합성하는 제3단계; 폴리디메틸실록산-폴리아미드이미드계 공중합체에 세라믹졸을 혼합하여 세라믹졸 나노하이브리드 소재를 제조하는 제4단계;를 포함하되, 제3단계에서의 폴리디메틸실록산(PDMS)은 양 말단에 히드록시기, 액시드기, 아민기, 언하이드라이드기, 에폭시기 및 티올기를 포함하는 반응성 그룹 중 어느 하나 이상을 가져, 폴리아미드이미드 사슬의 이소시안기와 반응하는 것을 특징으로 하는 폴리디메틸실록산-폴리아미드이미드계 공중합체를 이용한 세라믹졸 나노하이브리드 소재 및 이의 제조방법을 기술적 요지로 한다.

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Номер записи: 3
21-12-2016 дата публикации

CERAMIC SOL NANOHYBRID MATERIAL USING POLYDIMETHYLSILOXANE-POLYAMIDEIMIDE COPOLYMER AND MANUFACTURING METHOD THEREOF

Номер: KR1020160146250A
Автор: PARK, JIN HEE, KANG, DONG PIL, LEE, DAE HO, JEON, JAE HONG, HAN, SE WON
Принадлежит:

The present invention relates to a ceramic sol nanohybrid material using a polydimethylsiloxane-polyamideimide copolymer and a manufacturing method thereof and, more specifically, to a ceramic sol nanohybrid material using a polydimethylsiloxane-polyamideimide copolymer and a manufacturing method thereof, wherein the ceramic sol nanohybrid material has excellent lubricity, flexibility, water repellency, durability, heat resistance and abrasion resistance by using polydimethylsiloxane (PDMS) capable of reacting with polyamideimide including a highly reactive isocyanate group at a terminus and is formed by mixing: a ceramic sol; and a polydimethylsiloxane-polyamideimide copolymer formed by binding PDMS to the isocyanate group of the polyamideimide, wherein a hydroxyl or ether group is capped in a part of a chain of the isocyanate group inside the polyamideimide. COPYRIGHT KIPO 2016 ...

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Номер записи: 4
17-03-2016 дата публикации

ORGANIC-INORGANIC NANO HYBRID COATING AGENT AND RESIN COMPRISING SILICA NANOPARTICLES OF WHICH SURFACES ARE MODIFIED WITH OLIGOMER, AND PREPARATION METHODS THEREOF

Номер: KR101604444B1
Автор: LEE, DAE HO, KANG, DONG PIL, PARK, JIN HEE, JEON, JAE HONG, HAN, SE WON
Принадлежит: KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE

The present invention provides organic-inorganic nano hybrid coating agent and resin comprising silica nanoparticles of which surfaces are modified with oligomer, and preparation methods thereof. A preparation method of an organic-inorganic nano hybrid coating agent comprising silica nanoparticles of which surfaces are modified with oligomer according to the present invention includes: a step of preparing an oligomer comprising nitrogen elements; a step of mixing and stirring the oligomer with silica of which the surface is treated through silane to prepare silica nanoparticles of which surfaces are modified with the oligomer; and a step of mixing the silica nanoparticles of which surfaces are modified with the oligomer with a polymer comprising nitrogen elements. The organic-inorganic nano hybrid coating agent comprising silica nanoparticles of which surfaces are modified with oligomer prepared by the preparation method, provides an effect that is capable of improving adhesive properties ...

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Номер записи: 5
24-03-2016 дата публикации

ORGANIC AND INORGANIC NANOHYBRID COATING AGENT COMPRISING SILICA NANOPARTICLES SURFACE-MODIFIED WITH OLIGOMERS, RESIN, AND METHOD FOR PREPARING SAME

Номер: WO2016043426A1
Автор: LEE, Dae-ho, KANG, Dong-pil, PARK, Jin-hee, JEON, Jae-hong, HAN, Se-won
Принадлежит:

The technical feature of the present invention relates to an organic and inorganic nanohybrid coating agent comprising silica nanoparticles surface-modified with oligomers, a resin, and a method for preparing the same, wherein the method comprises the steps of: preparing nitrogen atom-containing oligomers; preparing silica nanoparticles surface-modified with oligomers, by mixing and stirring silica, which is surface-treated with silane, and the oligomers; and mixing nitrogen atom-containing polymers and the silica nanoparticles surface-modified with oligomers. Thus, the organic and inorganic nanohybrid coating agent, which is prepared by comprising the silica nanoparticles surface-modified with oligomers, provides effects of improving adhesiveness, strength, and electrical characteristics, by physical twisting (chain entanglement) between the oligomers and the polymers. Furthermore, the organic and inorganic nanohybrid coating agent, comprising the silica nanoparticles surface-modified ...

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Номер записи: 6