| 振动挤出过程中毛细管内聚合物熔体的剪切速率分析 |
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| 引用本文： | 刘跃军,瞿金平.振动挤出过程中毛细管内聚合物熔体的剪切速率分析[J].应用力学学报,2005,22(1):59-62. |
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| 作者姓名： | 刘跃军 瞿金平 |
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| 作者单位： | 1. 株洲工学院,株洲,412008;中南大学,长沙,410083
2. 华南理工大学,广州,510641 |
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| 基金项目： | 国家自然科学基金(No 29904001)，国家自然科学基金仪器基金(No 20027002) |
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| 摘 要： | 借助自行研制的恒速型毛细管动态流变实验研究装置,对平行叠加振动条件下聚合物熔体经毛细管的挤出过程进行了分析;不依赖现有的任何本构关系,在考虑惯性项影响的前提下,建立了振动力场下毛细管壁处聚合物熔体剪切速率的计算公式;实验测量一定振动频率和振幅下毛细管瞬时入口压力、瞬时体积流量以及体积流量与入口压力波形的相位差,通过上述公式即可求得聚合物熔体在毛细管壁处的剪切速率。
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| 关 键 词： | 振动力场 聚合物熔体 毛细管 剪切速率 |
| 文章编号： | 1000-4939(2005)01-0059-04 |
Analysis to Shear Rate of Melted Polymer Extruded Through Capillary under Vibration Force |
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| Liu Yuejun,Qu Jinping.Analysis to Shear Rate of Melted Polymer Extruded Through Capillary under Vibration Force[J].Chinese Journal of Applied Mechanics,2005,22(1):59-62. |
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| Authors: | Liu Yuejun Qu Jinping |
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| Institution: | Liu Yuejun 1,3 Qu Jinping 2 |
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| Abstract: | Exerted a sine vibration in parallel direction of melted polymer flow, a characterization formula of meltage shear rate in a capillary was set up. Accordingly, the calculation of the share rate were conducted with Dynamic Rheometer of Capillary (DRC). Measured the instantaneous data of capillary entry pressure, volume flux and their phase difference under vibration force. the meltagl shear rate on the capillary wall capillary can be obtained. |
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| Keywords: | vibration force melted polymer capillary shear rate |
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