Manufacturing and Characteristics Analysis of PU/MWNT Composite Film for Forming (발포용 PU/MWNT 복합필름의 제조와 특성분석)

June-Hyung Park (박준형); 김정현; Seung-Jin Kim (김승진)

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

Textile Coloration and Finishing
Abbr : Text. Color. and Finish.
2010, 22(4), pp.362-372
Publisher : The Korean Society Of Dyers And Finishers
Research Area : Engineering > Fiber Engineering > Dyeing Engineering

June-Hyung Park ¹, 김정현 ¹, Seung-Jin Kim ¹

¹영남대학교

Accredited

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.

KEYWORDS

Keywords: MWNT, polyurethane, nanocomposite, dispersion property, physical property

Citation status

* References for papers published after 2023 are currently being built.

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