Abstract
Space-charge-formation characteristics in polyethylene, polypropylene, and their blends are discussed based on the results of DC conduction, thermal pulse current, and thermally stimulated current. Negative space charge is formed throughout the bulk of polypropylene, while positive space charge is formed in polyethylene. In polymer blends of the two homopolymers, the amount of negative space charge increases with an increase in polypropylene content, while that of positive space charge increases with an increase in polyethylene content. It appears that space charges of both polarities are formed in the polymer blends, presumably with a tendency for the charges to be trapped in their respective preferential polymers. By blending the two homopolymers, DC conduction current becomes larger than that of homopolymers. The dielectric strength at low temperature which is electronic in nature decreases by blending. The dielectric strength at room temperature which is governed by a thermal process increases by blending the two homopolymers, because the spherulite boundaries of polypropylene are reinforced to improve the mechanical properties.
| Original language | English |
|---|---|
| Title of host publication | Proc 3 Int Conf Prop Appl Dielectr Mater |
| Place of Publication | Piscataway, NJ, United States |
| Publisher | Publ by IEEE |
| Pages | 999-1002 |
| Number of pages | 4 |
| ISBN (Print) | 0879425687 |
| Publication status | Published - 1991 |
| Externally published | Yes |
| Event | Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials - Tokyo, Jpn Duration: 1991 Jul 8 → 1991 Jul 12 |
Other
| Other | Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials |
|---|---|
| City | Tokyo, Jpn |
| Period | 91/7/8 → 91/7/12 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Dielectric properties of polymer blend of polypropylene and polyethylene. / Katsunami, K.; Ishii, K.; Tanaka, Y.; Ohki, Yoshimichi.
Proc 3 Int Conf Prop Appl Dielectr Mater. Piscataway, NJ, United States : Publ by IEEE, 1991. p. 999-1002.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Dielectric properties of polymer blend of polypropylene and polyethylene
AU - Katsunami, K.
AU - Ishii, K.
AU - Tanaka, Y.
AU - Ohki, Yoshimichi
PY - 1991
Y1 - 1991
N2 - Space-charge-formation characteristics in polyethylene, polypropylene, and their blends are discussed based on the results of DC conduction, thermal pulse current, and thermally stimulated current. Negative space charge is formed throughout the bulk of polypropylene, while positive space charge is formed in polyethylene. In polymer blends of the two homopolymers, the amount of negative space charge increases with an increase in polypropylene content, while that of positive space charge increases with an increase in polyethylene content. It appears that space charges of both polarities are formed in the polymer blends, presumably with a tendency for the charges to be trapped in their respective preferential polymers. By blending the two homopolymers, DC conduction current becomes larger than that of homopolymers. The dielectric strength at low temperature which is electronic in nature decreases by blending. The dielectric strength at room temperature which is governed by a thermal process increases by blending the two homopolymers, because the spherulite boundaries of polypropylene are reinforced to improve the mechanical properties.
AB - Space-charge-formation characteristics in polyethylene, polypropylene, and their blends are discussed based on the results of DC conduction, thermal pulse current, and thermally stimulated current. Negative space charge is formed throughout the bulk of polypropylene, while positive space charge is formed in polyethylene. In polymer blends of the two homopolymers, the amount of negative space charge increases with an increase in polypropylene content, while that of positive space charge increases with an increase in polyethylene content. It appears that space charges of both polarities are formed in the polymer blends, presumably with a tendency for the charges to be trapped in their respective preferential polymers. By blending the two homopolymers, DC conduction current becomes larger than that of homopolymers. The dielectric strength at low temperature which is electronic in nature decreases by blending. The dielectric strength at room temperature which is governed by a thermal process increases by blending the two homopolymers, because the spherulite boundaries of polypropylene are reinforced to improve the mechanical properties.
UR - http://www.scopus.com/inward/record.url?scp=0026275288&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026275288&partnerID=8YFLogxK
M3 - Conference contribution
SN - 0879425687
SP - 999
EP - 1002
BT - Proc 3 Int Conf Prop Appl Dielectr Mater
PB - Publ by IEEE
CY - Piscataway, NJ, United States
ER -