| A NEW TYPE LOW SHEAR RATE VISCOMETER FOR HIGH MOLECULAR WEIGHT POLYMER |
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| 作者姓名： | 叶美玲 韩冬 施良和 |
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| 作者单位： | Polymer Physics Laboratory，Institute of Chemistry，Academia Sinica，Beijing 100080，Polymer Physics Laboratory，Institute of Chemistry，Academia Sinica，Beijing 100080，Polymer Physics Laboratory，Institute of Chemistry，Academia Sinica，Beijing 100080 |
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| 基金项目： | This work ws supported by the National Natural Science Foundation of China and Polymer Physics Laboratory,Institute of Chemistry,Academia Sinica. |
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| 摘 要： | In this paper, the effects of shear rate on the intrinsic viscosity measurement of partiallyHydrolysed Polyacrylamide (HPAM) in salt solution were studied with homemade multi-bulb viscometer and low shear rate rheometer. The critical shear rate of HPAM in saltsolution for high molecular weight HPAM was determined. A low shear rate capillaryviscometer was designed in which the η] approached to value at zero shear rate can beobtained for HPAM-salt system. The effect of molecular weight on shear rate dependenceof viscosity was also studied.
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| 收稿时间： | 1995-03-02 |
A NEW TYPE LOW SHEAR RATE VISCOMETER FOR HIGH MOLECULAR WEIGHT POLYMER* |
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| YE Meiling,HAN Dong,SHI Lianghe.A NEW TYPE LOW SHEAR RATE VISCOMETER FOR HIGH MOLECULAR WEIGHT POLYMER[J].Chinese Journal of Polymer Science,1996,0(4):311-317. |
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| Authors: | YE Meiling HAN Dong SHI Lianghe |
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| Institution: | Polymer Physics Laboratory; Institute of Chemistry; Academia Sinica; Beijing 100080 |
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| Abstract: | In this paper, the effects of shear rate on the intrinsic viscosity measurement of partiallyHydrolysed Polyacrylamide (HPAM) in salt solution were studied with homemade multi-bulb viscometer and low shear rate rheometer. The critical shear rate of HPAM in saltsolution for high molecular weight HPAM was determined. A low shear rate capillaryviscometer was designed in which the η] approached to value at zero shear rate can beobtained for HPAM-salt system. The effect of molecular weight on shear rate dependence of viscosity was also studied. |
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| Keywords: | Viscometer Intrinsic viscosity Molecular weight Polyelectrolyte Polyacrylamide Capillary viscometer |
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