Journal of Chemistry / 2019 / Article / Tab 3

Research Article

Mechanical Properties and Flame Retardancy of Epoxy Resin/Nanoclay/Multiwalled Carbon Nanotube Nanocomposites

Table 3

Results of flammability tests (reaction to small flame): oxygen index (OI) and UL 94 for nanocomposites.

TrialMaterialMWCNT content (wt.%)Nanoclay content (wt.%)LOI (vol.% O2 ± 2σ)Combustion rate (mm/min)UL94 HB (mm/min)

1Neat epoxy resin000020.6 ± 0.328.41Not rated (NR)
2EP10.01122.8 ± 0.324.2525.78 (HB)
3EP20.02124.2 ± 0.523.0122.35 (HB)
4EP30.03124.6 ± 0.422.4522.03 (HB)
5EP40.01224.2 ± 0.322.3420.01 (HB)
6EP50.02225.0 ± 0.320.0518.60 (HB)
7EP60.03224.6 ± 0.519.0318.85 (HB)
8EP70.01324.2 ± 0.420.4519.65 (HB)
9EP80.02324.6 ± 0.621.4318.68 (HB)
10EP90.03324.6 ± 0.320.8018.76 (HB)

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