Effect of environment on flexural fatigue behavior of polyamide 66/hectorite nanocomposites

Influence of imbibed moisture and organoclay on tensile and indentation behavior of polyamide 66/hectorite nanocomposites

“…The extent of enhancement depends on relative orientation and dispersion of organoclay in polymer matrix because the presence of filler introduces a tortuous path for diffusing penetrant. In the present study, enhancement of barrier properties per unit weight of organoclay is more for PA66CN1 compared to that of PA66CN5 because of exfoliated nanostructure of the organoclay in PA66CN1 and combined exfoliated and intercalated nanostructure of the organoclay in PA66CN5 [13]. PA66CN1 and PA66CN5 samples reached near equilibrium state in laboratory air by absorbing 7% less moisture by weight compared with 3.5% moisture absorbed by PA66 samples with in a time span of 6 months.…”

“…The synergism in PA66CN is originated from their final nanomorphology, which is associated with the high aspect ratio and extremely large surface area exposed to the polymer [17]. Hence, the exfoliated nanostructure of organoclay in PA66CN1D exhibited large enhancement in tensile modulus per unit weight of clay compared with the combined intercalated and exfoliated nanostructure of organoclay in PA66CN5D [13].…”

Polymer/ Clay Nanocomposites: Concepts, Researches, Applications and Trends for The Future

“…The flexure fatigue of these nanocomposites were studied in two environments: air and water. It was observed that the clay improved this property in both environments [35].…”

Flexural fatigue behaviour of carbon nanofiber/epoxy nanocomposites

“…considered the influence of humidity on flexural fatigue behaviour of commercial grade polyamide‐6 granules and hectorite clay (organically modified with a hydrogenated tallow quaternary amine complex) nanocomposites. Timmaraju et al . considered the influence of environment on the flexural fatigue behaviour of polyamide 66/hectorite nanocomposites.…”

“…For nanocomposites under displacement-controlled condition, the fatigue life was investigated by various researchers. [6][7][8][9] Ramkumar and Gnanamoorthy 6 investigated the stiffness and flexural fatigue life improvements of polymer matrix reinforced nanocomposites with nanoclay. They described the effect of nanoclay fillers addition on the flexural fatigue response of polyamide-6.…”