کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5189209 1381179 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of nano-CaCO3 on polymorphic behavior in syndiotactic polystyrene for non-isothermal crystallization
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Effect of nano-CaCO3 on polymorphic behavior in syndiotactic polystyrene for non-isothermal crystallization
چکیده انگلیسی
Syndiotactic polystyrene (sPS)/nano-CaCO3 composites were prepared on a twin screw extruder for the first time. Differential scanning calorimeter and wide-angle X-ray diffraction were used to investigate the effect of maximum melting temperature (Tmax) and the content of nano-CaCO3 on the crystal forms and melting behavior of sPS for non-isothermal crystallization. The results indicated that the increasing Tmax decreases the crystallization temperature of sPS and facilitates the formation of β-crystal. The addition of nano-CaCO3 changes the melting behavior and crystal form of melt-crystallized sPS and facilitates the formation of β-crystal. The increase in the content of nano-CaCO3 decreases crystallization temperature of sPS and increases the content of β-crystal, which was similar to the effect of increasing Tmax. Pure β-crystal in sPS/nano-CaCO3 composites can be obtained at lower melting temperature due to the effect of nano-CaCO3.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 47, Issue 5, 22 February 2006, Pages 1661-1666
نویسندگان
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