Plasticization of nylon-6 by water : a NMR imaging study
conference paper
Nylon-6 is sensitive to water. Water can diffusion into the amorphous zones, break the hydrogen bonds between the polymer chains and thereby plasticize the matrix [1]. Therefore the mechanical properties of nylon-6 subjected to water will be coupled with water-polymer interactions on molecular, mesoscopic and macroscopic length scales. On a macroscopic scale one needs to know what part of the material has been invaded by water, how that influences the local mechanical properties and how that contributes to the overall mechanical behavior of the object of interest. On mesoscopic and molecular length scales the distribution of water in and resulting plasticization of the amorphous phase have to be known. The aim of this paper is to clarify the relation between water uptake and plasticization in Nylon-6 films both on macroscopic and mesoscopic length scales. With NMR imaging the time evolution of water distributions and plasticization profiles are monitored. NMR relaxometry is used to elucidate the polymer-water interactions on the scale of the amorphous domains.
TNO Identifier
868902
Source title
EUROMECH Colloquium 550 Multiphysics of Solid Polymers: Experiments and Modeling, July 1-5, 2013, Poitiers, France
Collation
3 p.
Files
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