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The water sorption mechanism in thin nylon 6 films is studied by 1 H NMR imaging and relaxometry. Experiments using D 2 O and H 2 O enable identification of polymer and water signal components during the uptake process. Tracking the mobility and size of polymer and water components gives new insights into the water sorption mechanism of nylon 6. 1 H NMR imaging and...
The migration of ions through a nylon-6 film is studied by MRI. For this study the paramagnetic ions Mn2+ and Cu2+ are used as they act as a contrast agent and are detectable by MRI.The ingress of water and ions in nylon occurs at different rates. First, water is absorbed in the nylon. Second, the ions slowly migrate through the nylon matrix. The transport mechanism of manganese ions is investigated...
Nylon 6 films are directly exposed to saline solutions containing mono-valent ions and the water uptake is measured with magnetic resonance imaging (MRI). Both the amount of water uptake and the rate of water uptake are studied. First, the films are exposed to solutions with different concentrations of NaCl. Later, solutions of salts such as LiCl, KCl and KNO 3 are used. It is shown that all...
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