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A study of the development of molecular orientation and crystalline structure during the transverse drawing of one-way drawn poly(ethylene terephthalate) films has been carried out. The influence of the size of the crystallites in the one-way drawn film and the influence of the transverse drawing temperature have been studied. It is shown that the deformation mechanisms appear to depend on the size of the crystals initially present. Films containing small crystals lead to a higher orientation and larger crystalline structures oriented along the transverse direction. The influence of the second drawing temperature can be understood as a result of the importance of molecular relaxation and crystallization, both of which are enhanced by elevated temperatures.

Посилання на статтю:

The influence of initial morphology of one-way drawn poly(ethylene terephthalate) films on their transverse drawing / J. B. Faisant de Champchesnel and J. F. Tassin // Polymer. – 1994. – Vol 35. – P. 4092-4102.

The influence of initial morphology of one-way drawn poly(ethylene terephthalate) films on their transverse drawing - Завантажити.