| 聚丙烯腈溶液的拉伸流动 |
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| 引用本文： | 李宏杰,江体乾.聚丙烯腈溶液的拉伸流动[J].力学学报,1994,26(6):664-670. |
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| 作者姓名： | 李宏杰 江体乾 |
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| 作者单位： | 上海轮胎橡胶集团公司载重轮胎厂技术部 |
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| 摘 要： | 用改进的Ｒ，Ｋ．Ｇｕｐｔａ￣［１、２］拉伸黏度计测定了聚丙烯溶液的拉伸流动。结果表明，对聚丙烯腈稀溶液无论是剪切流动，还是拉伸流动都可以用改进后的Ｊｅｆｆｅｒｙ模型描述，并找出了一个影响拉伸流动的特征参数。
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| 关 键 词： | 拉伸流动，拉伸黏度，本构方程 |
THE EXTENSIONAL FLOW OF POLYACBYL ONITRILE |
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| Li Hongjie.THE EXTENSIONAL FLOW OF POLYACBYL ONITRILE[J].chinese journal of theoretical and applied mechanics,1994,26(6):664-670. |
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| Authors: | Li Hongjie |
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| Abstract: | The R.K. Gupta’s extentional viscometer improved by the authors was used tomeasure the extentional flow properities of polyacrylonitrile (PAN).It showed that modifiedJeffery Model developed by us could describe both the shear flow and elongational flow forpolyacrylonitrile. In the modified-model,compared with Jeffery Model, we have got a newcharicteristic parameter which only effect elongational flow. |
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| Keywords: | elongational flow elongational viscosity viscosity constitutive equation |
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