Thermal Aging Effect on Properties of Pure and Doped Nano-TiO2 Cellulose Pressboard
Journal article, 2021
In this research, nano-TiO2 of various diameters is added to cellulose and pressboard is made to enhance its anti-thermal aging characteristics. After thermally aging of the pressboard samples, partial discharge inception voltage (PDIV), AC breakdown strength and relative permittivity are measured. The results show that the dielectric properties of the pressboard made with 10 nm TiO2 has the highest AC breakdown due to closer match of the relative permittivity. The mechanical properties are higher than the unfilled cellulose samples. The change observed of the surface microstructure of the samples show that aging resistance of the filled samples are better than the unfilled samples.
power transformers
oil-paper
nano-TiO2
Voltage measurement
Permittivity
Aging
Mechanical factors
electric breakdown
Electric breakdown
Thermal stability
thermal aging
Titanium dioxide
Author
Daosheng Liu
Jiangxi University of Science and Technology
Zhengyang Guo
Jiangxi University of Science and Technology
Jin Ding
Jiangxi University of Science and Technology
Xiangdong Xu
Chalmers, Electrical Engineering, Electric Power Engineering
IEEE Transactions on Dielectrics and Electrical Insulation
1070-9878 (ISSN) 15584135 (eISSN)
Vol. 28 1 133-141 9351856Subject Categories
Ceramics
Materials Chemistry
Composite Science and Engineering
DOI
10.1109/TDEI.2020.009095