Study on the Properties of Epoxy Composites Using Fly Ash as an Additive in the Presence of Nanoclay: Mechanical Properties, Flame Retardants, and Dielectric Properties

Table 4

Dielectric properties, reliability strengths, and surface resistivity of epoxy and its composites.

Fly ash (parts volume)	Volume resistivity (Ω cm)	Surface resistivity (Ω)	Electric reliability (kV/mm)
0	45.4 × 101^3	5.6 × 101^2	12.7
10	23.8 × 101^3	7.5 × 101^2	13.8
20	19.7 × 101^3	8.5 × 101^2	13.2
30	15.5 × 101^3	7.9 × 101^2	13.8
40	7.5 × 101^3	5.9 × 101^2	13.1
50	6.9 × 101^3	4.7 × 101^2	12.8