کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
673846 1459525 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
β-Crystallization of isotactic polypropylene in the presence of β-nucleating agent and different crystallinity poly(ethylene terephthalate)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
β-Crystallization of isotactic polypropylene in the presence of β-nucleating agent and different crystallinity poly(ethylene terephthalate)
چکیده انگلیسی

In order to investigate the effect of crystallinity of second polymers on β-crystallization of β-nucleated isotactic polypropylene (β-iPP), a series of β-iPP blends with different poly(ethylene terephthalate) (PET) contents were prepared by using twin-screw extruder, and the β-iPP blends with different crystallinity PET were obtained by controlling the cooling rate, crystallization temperature and time, and melting temperature. The crystallization and melting behavior, crystalline morphology and β-crystal content have been investigated by DSC, WAXD and POM. The relationship between β-crystal content in the blends and the crystallinity of PET was discussed. Based on the effect of cooling rate, crystallization temperature and time, and melting temperature on β-crystallization of iPP in the β-iPP blend, it is considered that the crystallinity of PET is an important factor to the β-crystallization of β-iPP. The decreased crystallinity of PET would help the β-crystallization of β-iPP.

Figure optionsDownload as PowerPoint slideHighlights
► PET crystallized under non-isothermal process significantly decreases β-crystallization.
► The crystallinity of PET can be controlled by different crystallization temperatures.
► The decreased crystallinity of PET is favor to increase β-crystal content.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 559, 10 May 2013, Pages 17–22
نویسندگان
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