| 气相色谱法测定PTT中的DPG含量 |
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| 引用本文： | 江若平,周燕. 气相色谱法测定PTT中的DPG含量[J]. 合成纤维工业, 2001, 24(6): 67-69 |
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| 作者姓名： | 江若平 周燕 |
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| 作者单位： | 合成纤维国家工程研究中心, |
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| 摘 要： | 采用毛细管气相色谱法测定了聚对苯二甲酸丙二酯 ( PTT)产品中 1,3-二丙二醇 ( DPG)的含量 ,用乙醇胺降解法对 PTT大分子进行降解处理 ,选用了 CBP-W2 5 -10 0毛细管柱 ,氢火焰检测器 ,并用 1,6-己二醇作内标。结果表明 ,DPG的最低检测限为 0 .0 5 % ,相对标准偏差为 0 .78% ,平均回收率为10 0 .3%
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| 关 键 词： | 聚对苯二甲酸丙二酯 1,3-二丙二醇 气相色谱 分析 |
| 文章编号： | 1001-0041(2001)06-0067-03 |
| 修稿时间： | 2001-06-11 |
GAS CHROMATOGRAPHY DETERMINATION OF DPG IN POLYTRIMETHYLENE TEREPHTHALATE |
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| Jiang Ruoping,Zhou Yan. GAS CHROMATOGRAPHY DETERMINATION OF DPG IN POLYTRIMETHYLENE TEREPHTHALATE[J]. China Synthetic Fiber Industry, 2001, 24(6): 67-69 |
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| Authors: | Jiang Ruoping Zhou Yan |
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| Abstract: | Capillary gas chromatography was applied to determine 1,3|dipropylene glycol(DPG) in polytrimethylene terephthalate(PTT). With CBP|W25|100 capillary column and using FID and 1,6|hexanediol as internal reference, PTT macromolecular was subjected to degradation with the presence of ethanolamine. The results showed that the detection limit of DPG was 0 05%, the relative standard deviation was 0 78%, and the average recovery was 100 3%. |
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| Keywords: | polytrimethylene terephthalate 1 3|dipropylene glycol gas chromatography analysis |
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