Dynamic mechanism of breakdown in polypropylene-based nano-dielectric
Source abstract
Abstract
The dynamic mechanism of breakdown in polypropylene (PP) were represented based on the discharge-avalanche theory. PP is a typical semi-crystalline thermoplastic polymer with low loss and high thermal stability, which had broad application prospects in recyclable and environment-friendly insulation. Dielectric strength was one of the important properties for polymer insulation, hence research of breakdown mechanism was of great significance for insulation reliability increase and advanced materials development. In this paper, the dielectric strength of PP was enhanced by nano-silica filling, and mechanism of enhancement was discussed based on the change of activation energy measured by thermally stimulated depolarization currents (TSDC).
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Research context
OpenAlex topics: High voltage insulation and dielectric phenomena · Dielectric materials and actuators · Power Transformer Diagnostics and Insulation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University 1 , Xi’an, Shanxi 710049, China
Key Laboratory of Engineering Dielectrics and its Application, Ministry of Education, Harbin University of Science and Technology 2 , Harbin, Heilongjiang 150080, China
Funding
Key laboratory of engineerring dielectric and its application ministry of education · National Basic Research Program of China · National Natural Science Foundation of China · State Key Laboratory of Electrical Insulation and Power Equipment
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