화학공학소재연구정보센터
Macromolecular Research, Vol.23, No.12, 1144-1151, December, 2015
High performance electric heating polyimide composite films reinforced with acid-treated multiwalled carbon nanotubes
E-mail:
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 ~1011 Ω cm to ~102 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.
  1. Bessonov MI, Koton MM, Kydryavtsev VV, Laius LA, Polyimides: Thermally Stable Polymers, 2nd ed., Plenum, New York, 1987.
  2. Ghosh MK, Mittal KL, Eds., Polyimides: Fundamentals and Applications, Marcel Dekker, New York, 1996.
  3. Wang CY, Li G, Jiang JM, Yang SL, Jin JH, Prog. Chem., 21, 174 (2009)
  4. Liaw DJ, Wang KL, Huang YC, Lee KR, Lai JY, Ha CS, Prog. Polym. Sci, 37, 907 (2012)
  5. vanherck K, Koeckelberghs G, vankelecom IFJ, Prog. Polym. Sci, 38, 874 (2013)
  6. Jiang XW, Bin YZ, Matsuo M, Polymer, 46(18), 7418 (2005)
  7. Yuan W, Che J, Park MBC, Chem. Mater., 23, 4149 (2011)
  8. Huang YC, Lin JH, Tseng IH, Lo AY, Lo TY, Yu HP, Tsai MH, Whang WT, Hsu KY, Compos. Sci. Technol., 87, 174 (2013)
  9. Park OK, Hwang JY, Goh M, Lee JH, Ku BC, You NH, Macromolecules, 46(9), 3505 (2013)
  10. Ma L, Niu H, Cai J, Zhao P, Wang C, Bai X, Lian Y, Wang W, Carbon, 67, 488 (2014)
  11. Ebbesen TW, Lezec HJ, Hiura H, Bennett JW, Ghaemi HF, Thio T, Nature, 382(6586), 54 (1996)
  12. Treacy MM, Ebbesen TW, Gibson JM, Nature, 381(6584), 678 (1996)
  13. Baughman RH, Zakhidov AA, de Heer WA, Science, 297, 787 (2002)
  14. Lee SH, Lee DH, Lee WJ, Kim SO, Adv. Funct. Mater., 21(8), 1338 (2011)
  15. So HH, Cho JW, Sahoo NG, Eur. Polym. J., 43, 3750 (2007)
  16. Yoo KP, Lim LT, Min NK, Lee MJ, Lee CJ, Park CW, Sens. Actuators B-Chem., 145, 120 (2010)
  17. Li X, Du Z, Zhang C, Li H, Zou W, Polym. Adv. Technol., 24, 151 (2013)
  18. Chen Y, Iroh JO, Chem. Mater., 11, 1218 (1999)
  19. El-Tantawy F, Eur. Polym. J., 37, 565 (2001)
  20. El-Tantawy F, Kamada K, Ohnabe H, Mater. Lett., 56, 112 (2002)
  21. Jeon GW, Jeong YG, J. Mater. Sci., 48(11), 4041 (2013)