| 聚丙烯腈-二甲基亚砜溶液挤出胀大的研究 |
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| 引用本文： | 曾小梅,张莹,赵炯心.聚丙烯腈-二甲基亚砜溶液挤出胀大的研究[J].合成技术及应用,2004,19(3):9-12. |
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| 作者姓名： | 曾小梅 张莹 赵炯心 |
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| 作者单位： | 东华大学纤维材料国家重点实验室,上海,200051;东华大学纤维材料国家重点实验室,上海,200051;东华大学纤维材料国家重点实验室,上海,200051 |
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| 摘 要： | 使用毛细管流变仪对聚丙烯腈(PAN)的二甲基亚砜(DMSO)溶液的挤出胀大进行了研究。研究发现,孔口胀大比(B)随表观剪切速率(γ)、溶液浓度的增大而增大;随毛细管长径比(L/D)增大、温度(T)升高、滤布层数(N)增多而减小;L/D增大或γ增大时,孔口胀大比活化能(EB)下降,C％增大,EB也增加。
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| 关 键 词： | 聚丙烯腈 二甲基亚砜、孔口胀大比 活化能 |
| 文章编号： | 1006-334X(2004)03-0009-04 |
Study on extrusion die swell of polyacrylonitrile-dimethyl sulphoxide solution |
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| ZENG Xiao-mei,ZHANG Yin,ZHAO Jiong-xin.Study on extrusion die swell of polyacrylonitrile-dimethyl sulphoxide solution[J].Synthetic Technology and Application,2004,19(3):9-12. |
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| Authors: | ZENG Xiao-mei ZHANG Yin ZHAO Jiong-xin |
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| Abstract: | The extrusion die swell (B)of PAN-DMSO solution was studied on a Capillary-Rheometer. The B increases with the increase of shear rate (γ) and the consistence of PAN-DMSO solution (C), but decreases with the increase of the length-diameter ratio of capillary ( L/D) , temperature ( T ) , and the number of the filter gauze layer (N) . When L/D or γ increases, the B' B activation energy (EB) firstly goes down quickly then slowly with the increase of L/ D or γ, but increases with the increase of C. |
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| Keywords: | capillary-rheometer extrusion die swell PAN-DMSO solution activation energy |
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