NDLI: High performance electric heating polyimide composite films reinforced with acid-treated multiwalled carbon nanotubes

Content Provider	Springer Nature Link
Author	Kim, Young Ju Jeong, Young Gyu
Copyright Year	2015
Abstract	Polyimide (PI)-based composite films were prepared by efficient solution casting and following thermal treatment of poly(amic acid) (PAA) precursor, which contained different acid-treated multiwalled carbon nanotube (aMWCNT) contents of 0.1-10.0 wt%. The microstructures, thermal and electrical properties of the composite films were characterized as a function of the aMWCNT content. SEM images of the composite films revealed that aMWCNTs were well dispersed in the PI matrix. Thermogravimetric data demonstrated that the composite films were thermally stable up to ~450 °C. The electrical resistivity of the composite films decreased considerably from ~10$^{11}$ Ω cm to ~10$^{2}$ Ω cm with the increment of the aMWCNT content, dominantly at a certain percolation threshold between 1.0 and 3.0 wt% aMWCNT. The composite films with above 5.0 wt% aMWCNT contents showed excellent electric heating performance. For example, the composite film with 10.0 wt% aMWCNT exhibited low temperature growth/decay time constant of < 1 s, stable maximum temperatures of 30-310 °C, and high electric power efficiency of ~4.07 mW/°C under applied voltages of 10-70 V. The overall results manifested that PI/aMWCNT composite films could be used as excellent performance electric heating materials with high thermal stability.
Starting Page	1144
Ending Page	1151
Page Count	8
File Format	PDF
ISSN	15985032
Journal	Macromolecular Research
Volume Number	23
Issue Number	12
e-ISSN	20927673
Language	English
Publisher	The Polymer Society of Korea
Publisher Date	2015-11-05
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	polyimide multiwalled carbon nanotube composite films electric heating thermal stability Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Physical Chemistry Characterization and Evaluation of Materials Nanochemistry Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Materials Chemistry Chemical Engineering Polymers and Plastics

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