Polyethylene Nanodielectrics : The Influence of Nanoclays on Structure Formation and Dielectric Breakdown
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概要
- 論文の詳細を見る
A range of nanocomposites containing polyethylene and montmorillonite (MMT) clay was prepared using different procedures, such that the extent of MMT dispersion varied. The interactions that occur were then studied, together with the effect of MMT dispersion on structure and short-term dielectric breakdown. When the MMT is poorly dispersed, the AC ramp breakdown strength is reduced. When the MMT is well dispersed, quenched samples with and without MMT appear to behave in an equivalent manner. However, while isothermal crystallization at 117 °C results in a significant increase in performance in the absence of MMT, no equivalent change was seen when the MMT was present. The crystallization behaviour of the polyethylene indicates that while well-dispersed MMT serves to enhance nucleation, it can also serve to inhibit crystallization. These results suggest that short-range thermodynamic interactions occur between the clay platelets and the polymer during the initial crystallization phase. The interaction zone can, however, be thought to extent throughout the material.
- 社団法人 電気学会の論文
- 2006-11-01
著者
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Zhang Yudong
Ecs University Of Southampton
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VAUGHAN Alun
ECS, University of Southampton
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SWINGLER Steven
ECS, University of Southampton
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ZHANG Yudong
ECS, University of Southampton
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Vaughan Alun
Ecs University Of Southampton
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Swingler Steven
Ecs University Of Southampton
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Vaugman Alun
ECS, University of Southampton