Electret properties and electrical conductivity of polypropylene-polyphenylene sulfide composites
Abstrak
The electret properties and electrical conductivity of polypropylene-polyphenylene sulfide (PP-PPS) composites were studied. The results reveal that the effective surface charge density is higher in fibrous-porous materials (FPM) compared to film-based composites. In the electrical conductivity-temperature dependence, a characteristic up-turn is observed at a temperature of 110 °C, where the high-temperature segment of the curve corresponds to the intrinsic conductivity of the composite. The low-temperature segment can be attributed to structural defects. Additionally, two relaxation maxima are identified in the thermally stimulated depolarization (TSD) current spectra. The low-temperature peak is associated with the charge relaxation at the matrix-filler interface, a phenomenon driven by Maxwell — Wagner polarization. The high-temperature maxima are likely related to the relaxation of charges governed by the intrinsic conductivity of PP in its amorphous phase.
Topik & Kata Kunci
Penulis (5)
Андрей Александрович Павлов
Михаил Анатольевич Коваленко
Виктор Антонович Гольдаде
Маргарита Эдуардовна Борисова
Сергей Валентинович Зотов
Akses Cepat
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Cek di sumber asli →- Tahun Terbit
- 2025
- Sumber Database
- DOAJ
- DOI
- 10.33910/2687-153X-2025-6-1-17-25
- Akses
- Open Access ✓