کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10425429 | 906831 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rheological and extrusion behavior of intercalated high-impact polystyrene/organomontmorillonite nanocomposites
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
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چکیده انگلیسی
High-impact polystyrene (HIPS)/organomontmorillonite (Org-MMT) nanocomposites were prepared by melt processing using a twin-screw extruder. Intercalation of the Org-MMT in the HIPS matrix was achieved as revealed by both X-ray diffraction and transmission electron microscopy. Great attention was focused on the rheological and extrusion behavior of HIPS/Org-MMT nanocomposites via a capillary rheometer owing to the resemblance of its conditions of operation to those prevailing during the practical fabrication process of materials. The rheological data of the nanocomposites exhibited power-law relationship of flow and sharper shear thinning compared to the polymer matrix. With increasing Org-MMT loadings, the flow behavior index, nⲠdecreased at a constant temperature and shear rate whereas the apparent shear viscosity, ηa increased slightly. The dependence of ηa on temperature was in accordance with Arrhenius-Eyring expression. The addition of Org-MMT resulted in a decline in extrusion swell and melt elasticity of the nanocomposites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 65, Issue 10, August 2005, Pages 1593-1600
Journal: Composites Science and Technology - Volume 65, Issue 10, August 2005, Pages 1593-1600
نویسندگان
Chen Dazhu, Yang Haiyang, He Pingsheng, Zhang Weian,