Abstract
Uniaxial drawing of polymer samples by tensile testing, machines usually is characterized by drawing temperature, velocity and ratio. These data in general do not succeed in describing the drawing process completely, therefore different and/or additional parameters are necessary for characterization of drawing process. Striplike specimens of polyamide 6 and polyethylene terephthalate films were cut and drawn to a constant draw ratio. Especially sample dimensions, drawing velocity, drawing temperature and ambient medium were varied. Local draw ratio, birefringence and yield stresses were investigated.
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