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발포용 PU/MWNT 복합필름의 제조와 특성분석

Manufacturing and Characteristics Analysis of PU/MWNT Composite Film for Forming

김정현|김승진|박준형
한국염색가공학회 (The Korean Society Of Dyers And Finishers)|2010.12|한국염색가공학회지 (Textile Coloration and Finishing)|제22권 제4호|pp. 362-372

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키워드

nanocompositepolyurethanephysical propertyKeywords: MWNTdispersion property

초록

Abstract― This paper surveys the physical properties of the multiwall carbon nanotube (MWNT) and polyurethane composite film for improvement of mechanical properties and electrical characteristics. The modification of MWNT was carried out by acid treatment with nitric and sulphuric acid mixed solution, and then followed by thermal treatment for enhancing MWNT dispersion with polyurethane. This modified MWNT was mixed with polyurethane by changing the loading content of MWNT and dispersion time under the dimethylformamide solution in the ultrasonic wave apparatus. Various physical characteristics of the modified PU/MWNT films were measured and analyzed in terms of the loading content and dispersion time. The maximum absorbance of the PU/MWNT films were observed with the 2wt% loading at dispersion times of 2 and 24 hour, respectively. The minimum electrical volume resistivity of PU/MWNT film was shown at the loading content of 0.5wt% or more irrespective of dispersion treating time. However the optimum condition was assumed to 2wt% loading at dispersion time of 2 hours by assessing the surface profile of the film using video microscope. The breaking stress and strain of the PU/MWNT film decreased with increasing loading content, but no change of physical properties was shown with increasing in dispersion time.

Abstract

Abstract― This paper surveys the physical properties of the multiwall carbon nanotube (MWNT) and polyurethane composite film for improvement of mechanical properties and electrical characteristics. The modification of MWNT was carried out by acid treatment with nitric and sulphuric acid mixed solution, and then followed by thermal treatment for enhancing MWNT dispersion with polyurethane. This modified MWNT was mixed with polyurethane by changing the loading content of MWNT and dispersion time under the dimethylformamide solution in the ultrasonic wave apparatus. Various physical characteristics of the modified PU/MWNT films were measured and analyzed in terms of the loading content and dispersion time. The maximum absorbance of the PU/MWNT films were observed with the 2wt% loading at dispersion times of 2 and 24 hour, respectively. The minimum electrical volume resistivity of PU/MWNT film was shown at the loading content of 0.5wt% or more irrespective of dispersion treating time. However the optimum condition was assumed to 2wt% loading at dispersion time of 2 hours by assessing the surface profile of the film using video microscope. The breaking stress and strain of the PU/MWNT film decreased with increasing loading content, but no change of physical properties was shown with increasing in dispersion time.

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관련 논문AI추천

다중벽 탄소나노튜브와 폴리우레탄 복합화 필름의 물성특성김승진, 김정현, 박준형한국염색가공학회 · 한국염색가공학회지2010 · 제22권 제3호용매에 따른 MWNT의 분산특성과 제조된 PU/MWNT 필름의 전기적ㆍ물리적 특성 분석김승진, 김정현, 마혜영, 양성용한국염색가공학회 · 한국염색가공학회지2012 · 제24권 제1호PU/MWNT 발포필름의 발포 특성연구김승진, 박미라, 박준형, 최라희한국염색가공학회 · 한국염색가공학회지2012 · 제24권 제1호분산성 향상을 위한 탄소나노튜브의 개질과 폴리우레탄과의 분산 특성권오경, 김승진, 김정현, 박경순, 박준형한국염색가공학회 · 한국염색가공학회지2010 · 제22권 제1호PANI 첨가 PU/MWNT 필름의 정전방전특성김승진, 마혜영, 양성용한국염색가공학회 · 한국염색가공학회지2013 · 제25권 제1호고강도, 고강성, 그리고 유연한 탄소나노튜브 버키페이퍼-폴리우레탄 나노복합체김융암, 임다운, 정용채, 하유미한국복합재료학회 · Composites Research2016 · 제29권 제4호

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