| The Effects of Dispersed Phase Morphology Induced by Flow on the Bulk Viscosity of HDPE/PA Blends |
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| 引用本文： | Hong Mei YANG Zhen Wei ZHANG Hart LI Qiang ZHENG. The Effects of Dispersed Phase Morphology Induced by Flow on the Bulk Viscosity of HDPE/PA Blends[J]. 中国化学快报, 2006, 17(11): 1515-1518 |
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| 作者姓名： | Hong Mei YANG Zhen Wei ZHANG Hart LI Qiang ZHENG |
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| 作者单位： | Hong Mei YANG，Zhen Wei ZHANG，Han LI，Qiang ZHENG Department of Polymer Science and Engineering，Zhejiang University，Hangzhou 310027 Key Laboratory of Macromolecular Synthesis and Functionalization，Ministry of Education，Zhejiang University，Hangzhou 310027 |
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| 摘 要： | The apparent shear viscosity (ηa) of a blend composed of 97 wt % nigh-density polyethylene (HDPE) and 3 wt % polyamide (PA-66) was measured by capillary rheometry at different shear rates, below, near and above the melting point of PA-66, i.e. 240℃, 260℃and 280℃, respectively. At 260℃and a high shear rate,ηa of the blend reduced abnormally; and at 260℃, was lower than that at 280℃. The images of etched surface of extrudate observed by the SEM showed different dispersed phase morphology, induced by flow at different temperatures. It is suggested that the formation of fibrillar morphology of dispersed phase is a key factor for the abnormal reduction ofηa for the HDPE/PA blend.
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| 关 键 词： | 黏度还原 聚乙烯 聚酰胺 形变 |
| 收稿时间： | 2006-06-29 |
The Effects of Dispersed Phase Morphology Induced by Flow on the Bulk Viscosity of HDPE/PA Blends |
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| Hong Mei YANG,Zhen Wei ZHANG,Han LI,Qiang ZHENG. The Effects of Dispersed Phase Morphology Induced by Flow on the Bulk Viscosity of HDPE/PA Blends[J]. Chinese Chemical Letters, 2006, 17(11): 1515-1518 |
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| Authors: | Hong Mei YANG Zhen Wei ZHANG Han LI Qiang ZHENG |
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| Abstract: | |
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| Keywords: | Viscosity reduction polyethylene polyamide droplet deformation |
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