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



Voltage measurement



Mechanical factors

electric breakdown

Electric breakdown

Thermal stability

thermal aging

Titanium dioxide


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, Power grids and Components

IEEE Transactions on Dielectrics and Electrical Insulation

1070-9878 (ISSN)

Vol. 28 1 133-141

Subject Categories


Materials Chemistry

Composite Science and Engineering



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