The Effect of Draw Ratio and Temperature on Electrical Conduction in Nylon Filaments

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Abstract
In a study of electrical conduction in nylon as a function of draw ratio and temperature, it was found that the conductance depends upon washing history. Accordingly, a standard wash ing procedure was devised to allow reproducible and comparable measurements to be made. The conductivity at 30°C thus measured was shown to decrease with increasing draw ratio to an extent greater than can be accounted for by the decreased moisture regain produced by drawing. Upon decreasing the temperature from 45°C to 15°C, the conductivities at constant regain of both drawn and undrawn nylon fell, the difference between the two diminishing and apparently disappearing at 15°C. At none of the temperatures and regains studied could the temperature dependence be accounted for as a simple rate process.

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