Dielectric Properties of Thermally Aged Polypropylene Nanocomposites

被引：7
|
作者：
Azmi, A. [1 ]
Lau, K. Y. [1 ]
Ahmad, N. A. [1 ]
Abdul-Malek, Z. [1 ]
Tan, C. W. [1 ]
Ching, K. Y. [2 ]
Vaughan, A. S. [3 ]
机构：
[1] Univ Teknol Malaysia, Sch Elect Engn, Johor Baharu 81310, Malaysia
[2] Univ Reading Malaysia, Fdn Study & Language Inst, Iskandar Puteri 79200, Malaysia
[3] Univ Southampton, Dept Elect & Comp Sci, Southampton SO17 1BJ, Hants, England
来源：
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2022年 / 29卷 / 02期
关键词：
Aging; Nanocomposites; Dielectrics; Electric breakdown; Polymers; Temperature measurement; Insulation; calcium carbonate; dielectric breakdown; magnesium aluminate; nanocomposites; polypropylene; ELECTRICAL-PROPERTIES; BREAKDOWN; MICROSTRUCTURE; BEHAVIOR; CABLE; XLPE;
D O I：
10.1109/TDEI.2022.3163796
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This article reports on an investigation into the effects of thermal aging on the structure and dielectric properties of polypropylene (PP) nanocomposites. Magnesium aluminate (MgAl2O4), calcium carbonate (CaCO3), and surface-modified calcium carbonate (CaCO3T) nanofillers have been added to PP and the resulting nanocomposites have been subjected to aging at 110 degrees C and 140 degrees C. The results show that unfilled PP experiences a 13% reduction in its dc breakdown strength after aging at 110 degrees C and that its dc breakdown strength reduces by 27% after aging at 140 degrees C. In contrast, the reduction in the dc breakdown strength of all investigated PP nanocomposites is much less pronounced than that of the unfilled PP after aging. Specifically, the dc breakdown strength of PP/MgAl2O4 nanocomposites, PP/CaCO3 nanocomposites, and PP/CaCO3T nanocomposites reduces by 8%, 14%, and 14%, respectively, after aging at 140 degrees C. Possible mechanisms affecting the dc breakdown strength of the unfilled PP and PP nanocomposites before and after aging are consequently discussed.
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页码：543 / 550
页数：8
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