Abstract
PA6 clay fibers were prepared by melt spinning. The experiments carried out in DSC showed that the presence of clay in PA6 induces the crystallization of PA6 in γ-form, increasing the crystallization temperature and decreasing the melting point. By measuring the melting enthalpy, we also noticed that the quantity of amorphous regions is higher in filled PA6 yarns. The accessibility of the filled fiber is thus improved. After dyeing experiments, we noticed that PA6 nano yarn dyes itself faster with disperse dyes than unfilled PA6 yarn, while it is the opposite with acid dyes and 2:1 metal complex dyes. In both latter cases the nanoclay fixes on the amino sites, preventing the fixation of the acid or metal complex dyes.
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