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 8

Optimum mechanical properties of epoxy/fly ash/nncoclay nanocomposites from fine-tuning experiments.

Trial	Sample code	Fly ash content (wt. %)	Nanoclay content (wt. %)	Tensile strength (MPa)	Flexural strength (MPa)	Compressive strength (MPa)	Impact strength (kJ/m^2)
1	Neat epoxy	0.00	0.00	55.90 ± 0.3	86.75 ± 0.3	156.08 ± 0.3	7.11 ± 0.3
2	NP01	20	1	54.15 ± 0.3	88.02 ± 0.2	175.00 ± 0.3	6.90 ± 0.3
3	NP02	30	1	52.05 ± 0.2	82.12 ± 0.3	173.25 ± 0.3	7.80 ± 0.3
4	NP05	40	1	51.45 ± 0.3	78.35 ± 0.3	178.05 ± 0.2	8.50 ± 0.3
5	NP06	20	3	60.23 ± 0.2	89.34 ± 0.2	189.81 ± 0.3	10.44 ± 0.3
6	NP07	30	3	59.45 ± 0.3	87.14 ± 0.2	201.02 ± 0.2	13.69 ± 0.3
7	NP08	40	3	64.12 ± 0.3	89.27 ± 0.2	215.23 ± 0.3	14.45 ± 0.3
8	NP09	20	5	58.35 ± 0.2	87.89 ± 0.3	197.76 ± 0.2	14.81 ± 0.3
9	NP10	30	5	57.19 ± 0.2	88.76 ± 0.3	203.28 ± 0.3	13.07 ± 0.3
10	NP11	40	5	60.64 ± 0.3	85.25 ± 0.2	209.81 ± 0.3	13.01 ± 0.2