Article ID Journal Published Year Pages File Type
5190652 Polymer 2006 12 Pages PDF
Abstract

The mechanical properties and structure of uniaxially oriented polyoxymethylene (POM) produced by two solid-state processes, hydrostatic extrusion and die-drawing, are compared. In the former process there is no net component of tensile stress whereas in the latter case the sample is subjected to axial tensile stresses at the die-exit. The tensile nature of the stresses in die-drawing causes void formation and growth in the oriented sample whereas, in the case of hydrostatic extrusion, voids are suppressed due to the compressive stress fields. The mechanical properties of the oriented samples are compared together with relevant structural data, and their differences discussed.

Related Topics
Physical Sciences and Engineering Chemistry Organic Chemistry
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