TY - JOUR
T1 - Polymer Nanofibers Incorporated with Silver Nanoparticles
T2 - Thermal Properties
AU - Melgares Camacho, W.
AU - San Martín Martinez, E.
AU - Cruz-Orea, A.
AU - Aguilar Frutis, M. A.
N1 - Publisher Copyright:
© 2018, Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - In this study, photothermal techniques were used to investigate the thermal diffusivity, effusivity, and conductivity of samples based on polyvinylidene difluoride (PVDF) polymeric nanofibers incorporated with silver nanoparticles (Ag-NPs). Different amounts were investigated to analyze the thermal effect of Ag-NPs on the polymeric matrix. The Ag-NPs were synthesized by sol–gel and microwave-assisted methods, which have advantages over conventional synthesis methods. The composite of PVDF nanofibers and Ag-NPs was obtained by electrospinning technique while varying the processing parameters. The UV–Vis characteristic spectrum of the nanoparticles was obtained. The hydrodynamic radius of the Ag-NPs was about 16 nm, which was determined by a nanozetasizer. A ζ potential of about 0.03 mV was also measured in this system. This parameter is a measure of the magnitude of the repulsion or electrical attraction between particles and is one of the main measurements to determine the stability of nanoparticles. The morphologies were observed by scanning electron microscopy and showed cylindrical fibers with diameters ranging from 159 nm to 658 nm. Transmission electron microscopy was used to observe the incorporation and distribution of Ag-NPs in the PVDF nanofibers. The thermal effects of Ag-NPs on the polymeric matrix were determined from the thermal properties. The thermal conductivity increased from 0.12 W·m−1·K−1 to 0.34 W·m−1·K−1 when the Ag-NP amount was increased from 4 % to 12 % in the polymeric matrix.
AB - In this study, photothermal techniques were used to investigate the thermal diffusivity, effusivity, and conductivity of samples based on polyvinylidene difluoride (PVDF) polymeric nanofibers incorporated with silver nanoparticles (Ag-NPs). Different amounts were investigated to analyze the thermal effect of Ag-NPs on the polymeric matrix. The Ag-NPs were synthesized by sol–gel and microwave-assisted methods, which have advantages over conventional synthesis methods. The composite of PVDF nanofibers and Ag-NPs was obtained by electrospinning technique while varying the processing parameters. The UV–Vis characteristic spectrum of the nanoparticles was obtained. The hydrodynamic radius of the Ag-NPs was about 16 nm, which was determined by a nanozetasizer. A ζ potential of about 0.03 mV was also measured in this system. This parameter is a measure of the magnitude of the repulsion or electrical attraction between particles and is one of the main measurements to determine the stability of nanoparticles. The morphologies were observed by scanning electron microscopy and showed cylindrical fibers with diameters ranging from 159 nm to 658 nm. Transmission electron microscopy was used to observe the incorporation and distribution of Ag-NPs in the PVDF nanofibers. The thermal effects of Ag-NPs on the polymeric matrix were determined from the thermal properties. The thermal conductivity increased from 0.12 W·m−1·K−1 to 0.34 W·m−1·K−1 when the Ag-NP amount was increased from 4 % to 12 % in the polymeric matrix.
KW - Composites
KW - Electrospinning
KW - Nanofibers
KW - Polyvinylidene difluoride
KW - Silver nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=85054513054&partnerID=8YFLogxK
U2 - 10.1007/s10765-018-2446-4
DO - 10.1007/s10765-018-2446-4
M3 - Artículo
SN - 0195-928X
VL - 39
JO - International Journal of Thermophysics
JF - International Journal of Thermophysics
IS - 11
M1 - 130
ER -