Macromolecular Research, Vol.24, No.8, 670-674, August, 2016
Electrospun polyvinylidene fluoride-polyoctafluoropentyl acrylate blend based piezocapacitive pressure sensors
In this study, neat polyvinylidene fluoride (PVDF) and its blend with polyoctafluoropentyl acrylate (POFPA) were electrospun under controlled conditions, and studied for their physico-mechanical and piezo-responsive behaviours. Initial FTIR studies confirmed the effect of thermal annealing on the crystalline phase transformations and chaindipole orientation in PVDF as a function of POFPA content. SEM data exhibited “root-shaped” morphology in the blend sample. Higher tensile strength (65.2±0.4 kPa) for the blend compared to that of neat PVDF (1.5±0.03 kPa) confirmed the elastic nature of the blend nanoweb. Peak-to-peak piezoelectric output signal (Vp-p 0.976 V) and capacitance hysteresis showed reduced tendency, whereas the capacitance maxima is higher for the blend sample (Cmax 0.182 nF) compared to that of neat PVDF (Vp-p 1.195, Cmax 0.147 nF). Overall, even 10 wt% addition of POFPA in PVDF greatly enhanced the tensile strength of nanofiber web along with improved piezocapacitive characteristics, a combination of great potential for many commercial sensor applications.
- Muthiah P, Hsu SH, Sigmund W, Langmuir, 26(15), 12483 (2010)
- Lee S, Ahn Y, Prabu AA, Kim KJ, J. Fiber Bioeng. Inform., 6, 369 (2013)
- Lee JS, Prabu AA, Kim KJ, Polymer, 51(26), 6319 (2010)
- Wang YR, Zheng JM, Ren GY, Zhang PH, Xu C, Smart Mater. Struct., 20, 045009 (2011)
- Mandal D, Yoon S, Kim KJ, Macromol. Rapid Commun., 32(11), 831 (2011)
- Cha BJ, Yang JM, Macromol. Res., 14(6), 596 (2006)
- Nguyen TTT, Lee JG, Park JS, Macromol. Res., 19(4), 370 (2011)
- Dang TT, Nguyen TTT, Chung OH, Park JS, Macromol. Res., 23(9), 819 (2015)
- Gasmi A, Lewa CZ, Letowski S, Mater. Lett., 13, 346 (1992)
- Lovinger AJ, Science, 220, 1115 (1983)
- Liu YL, Li Y, Xu JT, Fan ZQ, ACS Appl. Mater. Interfaces, 2, 1759 (2010)
- Ahn Y, Lim JY, Hong SM, Lee J, Ha J, Choi HJ, Seo Y, J. Phys. Chem. C, 117, 11791 (2013)
- Jia N, Xing Q, Xia N, Sun J, Song R, Huang W, Mater. Lett., 139, 212 (2015)
- Storozhakova NA, Korotkikh VA, Rakhimov AI, Danilenko TI, J. Appl. Polym. Sci., 101(6), 4028 (2006)
- Jin XY, Kim KJ, Lee HS, Polymer, 46(26), 12410 (2005)
- Prabu AA, Lee JS, Kim KJ, Lee HS, Vib. Spectrosc., 41, 1 (2006)
- Prabu AA, Kim KJ, Park C, Vib. Spectrosc., 49, 101 (2009)
- Yoon S, Prabu AA, Kim KJ, Park C, Macromol. Rapid Commun., 29(15), 1316 (2008)
- Kang SJ, Park YJ, Bae I, Kim KJ, Kim HC, Bauer S, Thomas EL, Park C, Adv. Funct. Mater., 19(17), 2812 (2009)
- Park YJ, Kang YS, Park C, Eur. Polym. J., 41, 1002 (2005)
- Lee SJ, Prabu AA, Kim KJ, Mater. Lett., 148, 58 (2015)
- Wang YR, Zheng JM, Ren CY, Zhang PH, Xu C, Smart Mater. Struct., 20, 045009 (2011)