کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
830618 1470357 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of annealing temperature on the mechanical properties, thermal behavior and morphology of β-iPP/PA6 blends
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Effect of annealing temperature on the mechanical properties, thermal behavior and morphology of β-iPP/PA6 blends
چکیده انگلیسی

The correlations between the mechanical properties and microstructures of annealed pure polymers after annealing have been investigated extensively. However, the effect of annealing on the microstructures and properties of polymer blends were rarely studied. In this work, the effect of annealing temperatures (Ta) on the blend of β-form isotactic polypropylene (β-iPP) and polyamide 6 (PA6) was investigated by scanning electron microscope (SEM), differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD). Both DSC and WAXD results showed that low content of β nucleating agent induced both β1 and β2 melting peaks of β-iPP; the melting peak of β2-iPP disappeared at the Ta of 130 °C; at even higher Ta (above 150 °C), β-iPP disappeared because of the β to α transition. The flexural modulus and yield strength of β-iPP/PA6 blends increase at high Ta (above 130 °C), but the impact strength does not improve distinctly at the whole range of Ta studied due to the poor interfacial interaction between iPP and PA6.

Figure optionsDownload as PowerPoint slideHighlights
► Effect of annealing on properties and morphology of β-iPP/PA6 blends was studied.
► At low Ta (<130 °C), Ef and σY increases with increasing Ta.
► At high Ta (⩾150 °C), Ef and σY are enhanced sharply.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 40, September 2012, Pages 392–399
نویسندگان
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