Fabrication of Poly(vinylidene fluoride)/Multiwalled carbon nanotube nanocomposite foam via supercritical fluid carbon dioxide: Synergistic enhancement of piezoelectric and mechanical properties

2020 ◽  
Vol 192 ◽  
pp. 108108 ◽  
Author(s):  
Dawei Xu ◽  
Huili Zhang ◽  
Lian Pu ◽  
Li Li
Keyword(s):  
Mechanical Properties ◽  
Carbon Dioxide ◽  
Carbon Nanotube ◽  
Supercritical Fluid ◽  
Vinylidene Fluoride ◽  
Multiwalled Carbon ◽  
Synergistic Enhancement ◽  
Poly Vinylidene Fluoride ◽  
Nanocomposite Foam ◽  
Supercritical Fluid Carbon Dioxide

Enhanced Piezoelectric Properties of Electrospun Poly(vinylidene fluoride)/ Multiwalled Carbon Nanotube Composites

2012 ◽  
Vol 77 ◽  
pp. 82-85
Author(s):  
Yong Jin Ahn ◽  
Joon Young Im ◽  
Yong Sok Seo ◽  
Soon Man Hong
Keyword(s):  
Carbon Nanotube ◽  
Vinylidene Fluoride ◽  
Electrospinning Process ◽  
Multiwalled Carbon Nanotube ◽  
Piezoelectric Response ◽  
Multiwalled Carbon ◽  
Piezoelectric Phase ◽  
Poly Vinylidene Fluoride ◽  
Nanotube Composites ◽  
High Degree

We prepared poly(vinylidene fluoride)/multiwalled carbon nanotube (MWCNT) nanocomposites using electrospinning process and investigated its effect on the polymorphic behavior and electroactive properties. The remanant polarization and piezoelectric response increased with the the amount of MWCNT and piezoelectric -phase crystal. Interfacial interaction between MWCNT and PVDF caused high degree of -phase derived from external stretching.

Potential of Polarized PVDF/Carbon Nanotube Nanocomposite Scaffolds for Cell Growth

2015 ◽  
Vol 1718 ◽  
pp. 15-20
Author(s):  
Jun Young Lim ◽  
Sook Young Park ◽  
Hyun Jeong Kim ◽  
Yongsok Seo
Keyword(s):  
Carbon Nanotube ◽  
Vinylidene Fluoride ◽  
Electrospinning Process ◽  
Piezoelectric Response ◽  
Pvdf Film ◽  
Multiwalled Carbon ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
Diphenyl Tetrazolium Bromide ◽  
Nanocomposite Scaffolds

ABSTRACTWe investigated the effects of varying the multiwalled carbon nanotube (MWCNT) contents, as well as the additional use of drawing and poling on the polymorphic behavior and electroactive (piezoelectric) properties of the cast poly(vinylidene fluoride) (PVDF)/MWCNT membranes. Dramatic changes occurred in the polar β-phase crystal contents with the MWCNT loading. An optimum concentration of MWCNT exists for PVDF film polarization. On the other hand, films prepared by electrospinning process exhibited almost constant amount of β-phase with the MWCNT concentration. In this process, polymer fibers with diameters down to the nanometer range, or nanofibers, are formed by subjecting a fluid jet to a high electric field. The remanent polarization and piezoelectric response increased with the β-phase crystals. Cell adhesion and proliferation measured with MTT (Methylthiazolyl diphenyl-tetrazolium bromide) assay coincidentally responded to the polarized PVDF films (β-phase amount).

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