한국염색가공학회지 (Textile Coloration and Finishing)

  • 제24권1호
  • /
  • Pages.69-78
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  • 2012
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  • 1229-0033(pISSN)
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  • 2234-036X(eISSN)
한국염색가공학회 (The Korean Society of Dyers and Finishers)
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용매에 따른 MWNT의 분산특성과 제조된 PU/MWNT 필름의 전기적·물리적 특성 분석

Analysis of Electrical and Physical Property of the PU/MWNT Film and Dispersion Characteristics of MWNT According to the Solvent

  • 김정현 (영남대학교 섬유패션학부) ;
  • 마혜영 (영남대학교 섬유패션학부) ;
  • 양성용 (영남대학교 섬유패션학부) ;
  • 김승진 (영남대학교 섬유패션학부)
  • 투고 : 2011.11.30
  • 심사 : 2012.02.03
  • 발행 : 2012.03.27
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초록

This paper surveys the physical properties of the MWNT dispersion solution dispersed with the three types of solvents and of the polyurethane composite film for improvement of mechanical properties and electrical characteristics of PU/MWNT composite film. For this purpose, the MWNT dispersed solution was mixed with three types of solvent such as IPA, MEK and Toluene and then mixed with polyurethane (100part) with variation of loading content (0, 10, 20, 30, 40, 50 part) of MWNT dispersed solution in the ultrasonic wave dispersion apparatus. And eighteen PU/MWNT composite films were prepared as specimens. The various physical properties of these PU/MWNT films were measured and discussed with the loading content of three types of MWNT dispersed solutions. The highest absorbancy among the three types of dispersed solutions was shown in the IPA/MWNT solution. But the absorbancy of PU/MWNT films was not same as the solution. The low electrical surface and volume resistivity of PU/MWNT film were shown at the condition of 20 and 10 parts loading of IPA/MWNT dispersed solution, respectively. The low triboelectricity of PU/MWNT film was shown at the condition of above 30part loading of IPA/MWNT dispersed solution. The breaking strength and strain of PU/MWNT film prepared with IPA/MWNT dispersed solution were decreased with increasing loading content of IPA/MWNT from 10 to 40 parts. The maximum breaking strength and breaking strain according to the dispersion solution were shown on the IPA/MWNT dispersed solution. The uniform dispersion of PU/MWNT film according to the loading content of MWNT solution was shown by surface image analysis on the films dispersed with IPA.

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