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Zhao, Shunli. Thermally Stimulated Depolarization Current Evaluation of Molding
Compounds. Master of Science (Mechanical and Energy Engineering), May 2014, 74 pp., 7
tables, 76 figures, reference, 38 titles.
TSDC (thermally stimulated depolarization current) is one of the most important and
popular technique for investigating electret materials. TSDC technique can indicate the
magnitude of polarization and depolarization, relaxation time, charge-storage, glass transition,
and activation energy. To fully investigate polarization and relaxation for pure epoxy and filled
epoxy materials, a TSDC system was built and verified by the research. The article describes the
building processes and verification of the TSDC system. TSDC, TSPC, and TWC tests data for
epoxy and filled epoxy samples are presented in the article. To compare TSDC technique with
other related techniques, DEA (dielectric analysis), DMA (dynamic mechanical analysis), and
DSC (differential scanning calorimetry) tests are introduced.