| The Flow Behavior of Poly（m-Phenyleneisophthalamide） Concentrated Solution |
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| 引用本文： | 陈蕾 胡祖明 潘婉莲 刘兆峰. The Flow Behavior of Poly（m-Phenyleneisophthalamide） Concentrated Solution[J]. 东华大学学报(英文版), 2005, 22(4): 79-82 |
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| 作者姓名： | 陈蕾 胡祖明 潘婉莲 刘兆峰 |
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| 作者单位： | College of Material Science and Engineering, Donghua University, Shanghai 200051 |
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| 摘 要： | IntroductionPoly(m-phenyleneisophthalamide)(PMIA)fibers arei mportant materials with excellent ther mal and oxidativestability,flame resistance,and dielectric properties.Thedecomposition temperature of PMIA is400430℃andeven under this temperature it releases little har mful gases.Unlike flame-retardant treated materials,PMIAfibers areinherently flame resistance and it will not di minish duringthe life of the fiber.The fiber s low tenacity and highelongation give it textile-like character…
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| 关 键 词： | 聚（m-亚苯基邻苯二甲氨） 浓缩溶液 流动特性 结构粘度系数 松驰时间 |
| 收稿时间： | 2004-10-08 |
The Flow Behavior of Poly(m-Phenyleneisophthalamide) Concentrated Solution |
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| CHEN Lei,HU Zu-ming,PAN Wan-lian,LIU Zhao-feng. The Flow Behavior of Poly(m-Phenyleneisophthalamide) Concentrated Solution[J]. Journal of Donghua University, 2005, 22(4): 79-82 |
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| Authors: | CHEN Lei HU Zu-ming PAN Wan-lian LIU Zhao-feng |
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| Abstract: | By means of HAAKE RS105L cone and plate rheometer the concentrated solution, including viscous flow activation energy, non-Newtonian index, structural viscosity index and relaxation time of the PMIA solution were studied. The effect of concentration and temperature of the solution and molecular weight of the polymer on its non-Newtonian behavior was investigated. The results showed that PMIA concentrated solution prepared via low temperature condensation was of non-Newtonian fluid. With the decrease of temperature, increase of solution concentration and PMIA molecular weight, the deviation of the solution from Newtonian behavior decreased. The molecular weight of the polymer and the concentration of the solution affected the non- Newtonian behavior mete intensively. |
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| Keywords: | meta-aramid flow behavior structural viscosity index relaxation time |
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