高分子固体の押出しにおける塑性変形

抄録

The process of solid state extrusion of high density polyethylene was analyzed by assuming pure plastic behavior of the polymer. The agreement between the values calculated on the basis of the tensile data and that observed in extrusion experiments confirmed the assumed plastic nature of the polymer. The equation examined will be efficient as a starting point for detailed studies of solid state extrusion.
Solid state extrusion of 6-nylon was also tried. It was successful only at the relatively low degrees of processing even at the temperatures close to the melting point. This fact makes contrast to that of polyethylene, in which extrudates of high degrees of processing was obtainable at the temperatures above 80°C.