| 聚氨酯脲弹性体反应注射成型系统的动态流变特性 |
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| 引用本文： | 王雅文 李健. 聚氨酯脲弹性体反应注射成型系统的动态流变特性[J]. 华东理工大学学报(自然科学版), 1996, 22(4): 401-405 |
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| 作者姓名： | 王雅文 李健 |
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| 作者单位： | 华东理工大学化学工程研究所 |
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| 摘 要： | 通过自制的狭缝式在线流变仪，实时测定了文题的动态流变特性，测得了反应注射成型过程中物料的粘度，第一、二法向应力差随剪切速率，反应程度的变化，结果表明，该系统随反尖的进行，逐步表现出非牛顿流体特征，粘度呈现剪切变稀效应，并表现出明显的法向应力差，而且随反应时间延长，其粘度，法向应力差均呈现增加的趋势。
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| 关 键 词： | 动态流变特性 聚氨酯脲弹性体 反应注射成型 |
Study on the Dynamic Characteristies of PUU System in RIM Processes |
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| Wang Yawen,LiJian ,and Jiang Tiqian. Study on the Dynamic Characteristies of PUU System in RIM Processes[J]. Journal of East China University of Science and Technology, 1996, 22(4): 401-405 |
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| Authors: | Wang Yawen LiJian and Jiang Tiqian |
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| Abstract: | A small laboratory RIM machine,an on-line slit rheometer and an automatical data collection system have been used to run a fundamental study for two PUU(L-MDI/350E/DET DA/DBTDL)systems.The viscosity and normal stress difference during molding filling were measured.The results show that the rheological properties depand on shear rate and reaction time,The relationships a mong viscosity.normal stress differences,shear rate and reaction time were shown in 3D figures. |
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| Keywords: | RIM system rheological properties dynamic rheological properties on-line slit rheometer:PUU system |
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