| 压膜法测腈纶纺丝原液的固体含量与NaSCN含量 |
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| 引用本文： | 黄利捷. 压膜法测腈纶纺丝原液的固体含量与NaSCN含量[J]. 合成纤维工业, 2006, 29(4): 63-65 |
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| 作者姓名： | 黄利捷 |
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| 作者单位： | 中国石化股份公司安庆分公司,安徽,安庆,246001 |
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| 摘 要： | 用压膜法测定腈纶纺丝原液的固体含量(P)与NaSCN含量(w)并与拉丝法进行比较。结果表明：压膜法测定腈纶纺丝原液的P和w的准确度和精密度较拉丝法的高,且分析时间较短；压膜法测定P和w的相对标准偏差分别为0．136%,0．169%,而拉丝法测定分别为1．218%,1．032%；压膜法测定的纺丝原液的P与粘度相对应,且与粘度的对数呈线性关系,而拉丝法则没有。
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| 关 键 词： | 聚丙烯腈 纺丝原液 压膜法 拉丝法 固体含量 硫氰酸钠 粘度 |
| 文章编号： | 1001-0041(2006)04-0063-03 |
| 收稿时间： | 2005-12-02 |
| 修稿时间： | 2006-05-31 |
Measurement of solid content and NaSCN content in PAN spinning dope by pressed film method |
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| Huang Lijie. Measurement of solid content and NaSCN content in PAN spinning dope by pressed film method[J]. China Synthetic Fiber Industry, 2006, 29(4): 63-65 |
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| Authors: | Huang Lijie |
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| Affiliation: | SINOPEC Anqing Company, Anqing 246001 |
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| Abstract: | The pressed film method was used to measure the solid content (P) and sodium thiocyanate content (w) in PAN spinning dope and was compared with extraction method.The results showed that the pressed film method had higher accuracy and precision in shorter time;the relative standard deviations of P and w measurement were 0.136% and 0.169% by pressed film method and 1.218% and 1.032% by extraction method,respectively.The P value measured by pressed film method was in cor- respondence with viscosity and showed linear relationship with logarithmic viscosity number which was not found in extraction method. |
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| Keywords: | polyacrylonitrile spinning dope pressed film method extraction method solid content sodium thiocyanate viscosity |
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