| 预热时间对PET和PA66流变性能的影响 |
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| 引用本文： | 郭静 林福海. 预热时间对PET和PA66流变性能的影响[J]. 合成纤维工业, 1994, 17(1): 27-30 |
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| 作者姓名： | 郭静 林福海 |
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| 作者单位： | 大连轻工业学院 |
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| 摘 要： | 采用ＣＦＴ－５００型毛细管流变仪，研究了不同预热时间下ＰＥＴ、ＰＡ６６的流动曲线，非牛顿指数、熔体表观粘度及粘流活化能。结果表明：高聚物的流变性能与预热时间具有相关性，预热时间延长，熔体非牛顿指数下降，熔体表观粘度下降，粘流活化能增加。
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| 关 键 词： | PET，PA66，预热时间，高聚物流变性 |
EFFECTS OF THE PREHEAT TIME ON THE RHEOLOGICAL CHARACTERISTICS OF PET AND PA66 |
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| Guo Jing,Lin Fuhai and,Gao Guefen. EFFECTS OF THE PREHEAT TIME ON THE RHEOLOGICAL CHARACTERISTICS OF PET AND PA66[J]. China Synthetic Fiber Industry, 1994, 17(1): 27-30 |
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| Authors: | Guo Jing Lin Fuhai and Gao Guefen |
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| Affiliation: | Dalian college of ligft Industry |
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| Abstract: | The changes of the fiberforming polymer flow cure,noll-Newton index,melt-viscosity as well as viscousactivation at different preheat time are studied by using capillary rheo instrument model CFT-500.It is shownthat the preheat tirne does affect the fiberforming polymer flowing function. The longer the preheat time is,the lower the non-Newton index changes. The rnelt viscosity decreases and the viscous activation engergy in-creases with increasing preheat time. |
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| Keywords: | PA66 PET preheat time rheological characteristics |
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