Partial Discharge Characteristics of Polymer Nanocomposite Materials in Electrical Insulation: A Review of Sample Preparation Techniques, Analysis Methods, Potential Applications, and Future Trends

Table 1

Comparison between microcomposites and nanocomposites.

Properties	Microcomposite	Nanocomposite
Filler content	>50 wt%	<10 wt%
Filler size	10^−6 m	10^−9 m
Specific surface area of fillers	Small	Large