کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5186396 1381103 2007 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Layer structure formation in oriented poly(ethylene terephthalate) relating to micromechanical properties
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Layer structure formation in oriented poly(ethylene terephthalate) relating to micromechanical properties
چکیده انگلیسی

Glassy poly(ethylene terephthalate), uniaxially drawn at 25 °C (cold drawing) and at 90 °C (hot drawing), was crystallized in a taut state without shrinkage at 100 °C, 150 °C, 200 °C and 250 °C. The nanostructure and the mechanical properties were surveyed by X-ray diffraction and microhardness. Small-angle X-ray diffraction diagrams reveal typical 4-point patterns characteristic of the cold-drawn samples, whereas 2-point patterns are observed for the hot-drawn ones. Comparison of the molecular and the nanolayer inclinations in both drawings suggests that a mutual supplementary relationship holds between the c-axis tilting and the lamellar inclination. The layer structure formation is discussed in the light of these results. In addition, a correlation between the nanostructure formation and the micromechanical properties is offered, highlighting the differences found between the hot- and the cold-drawn materials.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 48, Issue 2, 12 January 2007, Pages 542-555
نویسندگان
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