Abstract
Effects of nanofiller loading on the molecular motion and carrier transport in polyamide-6/mica nanocomposites were discussed by analyzing their complex permittivity spectra. As a result, the following four dielectric polarization processes were observed; space charge polarization, interfacial polarization at crystalline/ amorphous boundaries, α relaxation due to dipolar orientation, and β relaxation due to rotation of amide groups bonded with water molecules. The enhancement of dielectric constant and that of loss factor due to abundance of mobile charge carriers are suppressed by the nanofiller loading. Furthermore, it was found that the relaxation time becomes longer by the mica nanofiller loading both for the dipolar orientation and for the rotation of amide groups. These results suggest that molecular motion that assists carrier transport is suppressed in nanocomposites, which indicates a strong interaction between the resin and filler.
| Original language | English |
|---|---|
| Article number | 4815188 |
| Pages (from-to) | 524-530 |
| Number of pages | 7 |
| Journal | IEEE Transactions on Dielectrics and Electrical Insulation |
| Volume | 16 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2009 Apr |
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Keywords
- Complex permittivity
- Conductivity
- Interfacial polarization
- Nanocomposites
- Polarization
- Polyamide
- Space charge
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
Effects of nanofiller loading on the molecular motion and carrier transport in polyamide. / Fuse, Norikazu; Sato, Hiroki; Ohki, Yoshimichi; Tanaka, Toshikatsu.
In: IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 16, No. 2, 4815188, 04.2009, p. 524-530.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of nanofiller loading on the molecular motion and carrier transport in polyamide
AU - Fuse, Norikazu
AU - Sato, Hiroki
AU - Ohki, Yoshimichi
AU - Tanaka, Toshikatsu
PY - 2009/4
Y1 - 2009/4
N2 - Effects of nanofiller loading on the molecular motion and carrier transport in polyamide-6/mica nanocomposites were discussed by analyzing their complex permittivity spectra. As a result, the following four dielectric polarization processes were observed; space charge polarization, interfacial polarization at crystalline/ amorphous boundaries, α relaxation due to dipolar orientation, and β relaxation due to rotation of amide groups bonded with water molecules. The enhancement of dielectric constant and that of loss factor due to abundance of mobile charge carriers are suppressed by the nanofiller loading. Furthermore, it was found that the relaxation time becomes longer by the mica nanofiller loading both for the dipolar orientation and for the rotation of amide groups. These results suggest that molecular motion that assists carrier transport is suppressed in nanocomposites, which indicates a strong interaction between the resin and filler.
AB - Effects of nanofiller loading on the molecular motion and carrier transport in polyamide-6/mica nanocomposites were discussed by analyzing their complex permittivity spectra. As a result, the following four dielectric polarization processes were observed; space charge polarization, interfacial polarization at crystalline/ amorphous boundaries, α relaxation due to dipolar orientation, and β relaxation due to rotation of amide groups bonded with water molecules. The enhancement of dielectric constant and that of loss factor due to abundance of mobile charge carriers are suppressed by the nanofiller loading. Furthermore, it was found that the relaxation time becomes longer by the mica nanofiller loading both for the dipolar orientation and for the rotation of amide groups. These results suggest that molecular motion that assists carrier transport is suppressed in nanocomposites, which indicates a strong interaction between the resin and filler.
KW - Complex permittivity
KW - Conductivity
KW - Interfacial polarization
KW - Nanocomposites
KW - Polarization
KW - Polyamide
KW - Space charge
UR - http://www.scopus.com/inward/record.url?scp=65349163337&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=65349163337&partnerID=8YFLogxK
U2 - 10.1109/TDEI.2009.4815188
DO - 10.1109/TDEI.2009.4815188
M3 - Article
VL - 16
SP - 524
EP - 530
JO - IEEE Transactions on Dielectrics and Electrical Insulation
JF - IEEE Transactions on Dielectrics and Electrical Insulation
SN - 1070-9878
IS - 2
M1 - 4815188
ER -