Environmental Degradation and Durability of Epoxy-Clay Nanocomposites

Table 5

Normalized flexure strength for specimens, as a function of exposure duration.

Environment	Exposure duration	Normalized Flexure Strength		Relative strength
		Neat epoxy	Epoxy-clay
Moisture	0	1.00	1.00	0.0%
	1320	0.61	0.49	−19.4%
	2712	0.62	0.49	−21.3%
	4098	0.53	0.47	−12.2%
UV radiation and condensation	0	1.00	1.00	0.0%
	1320	0.24	0.31	29.6%
	2712	0.17	0.25	47.9%
	4098	0.19	0.26	37.3%