| 不同特性粘数PBT切片的流变性能研究 |
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| 引用本文： | 张建. 不同特性粘数PBT切片的流变性能研究[J]. 合成技术及应用, 2012, 27(1): 14-17 |
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| 作者姓名： | 张建 |
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| 作者单位： | 中国石化仪征化纤股份有限公司研究院,江苏仪征,211900 |
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| 摘 要： | 采用毛细管流变仪研究了5种不同特性粘数的聚对苯二甲酸丁二醇酯(PBT)的流变性能,计算得到了PBT的非牛顿指数和粘流活化能。结果发现:不同特性粘数的PBT熔体能够达到的最大剪切速率不同,随着特性粘数的增大,PBT熔体的非牛顿指数逐渐减小,粘流活化能先是逐渐减小,然后又变大。
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| 关 键 词： | 聚对苯二甲酸丁二醇酯(PBT) 特性粘数 流变性能 粘流活化能 |
Rheological behavior of PBT polyester with different intrinsic viscosity |
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| Zhang Jian. Rheological behavior of PBT polyester with different intrinsic viscosity[J]. Synthetic Technology and Application, 2012, 27(1): 14-17 |
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| Authors: | Zhang Jian |
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| Affiliation: | Zhang Jian(Research Institute of Yizheng Chemical Fiber Co.,Ltd.,SINOPEC,Yizheng Jiangsu 211900,China) |
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| Abstract: | The rheological behavior of polybutylene terephthalate(PBT) which has different intrinsic viscosity,was studied with acapillary rheometer.The non-Newtonian index and viscous flow activation energy were calculated.The PBT melt got different maximum shear rates.With intrinsic viscosity increasing,the non-Newtonian index gradually decrease,and viscous flow activation energy was first gradually reduced,and then increases again |
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| Keywords: | polybutylene terephthalate(PBT) intrinsic viscosity rheological behavior viscous flow activation energy |
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