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The effect of annealing on the mechanical anisotropy of cold rolled polyoxymethylene
Author(s) -
Bahadur Shyam
Publication year - 1978
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760180403
Subject(s) - polyoxymethylene , materials science , annealing (glass) , anisotropy , composite material , ultimate tensile strength , diffraction , thermal , optics , thermodynamics , polymer , physics
The effect of cold rolling and subsequent annealing on the anisotropy of tensile properties has been studied by annealing 33 percent cold rolled polyoxymethylene at 70, 120 and 170°C and measuring the properties at 0, 45 and 90° from the rolling direction. The mechanical and thermal treatments exhibit a significant effect on the directional nature of the properties. The changes in mechanical properties have been accounted for in terms of the changes in morphology, fracture behavior and orientation as studied by a differential thermal analyzer, electron microscopy and wide‐angle X‐ray diffraction.