| 降低聚酯切片端羧基措施的探讨 |
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| 引用本文： | 秦宏.降低聚酯切片端羧基措施的探讨[J].聚酯工业,1999,12(4):31-33,37. |
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| 作者姓名： | 秦宏 |
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| 作者单位： | 乌鲁木齐石油化工总厂化纤厂!新疆乌鲁木齐，830019 |
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| 摘 要： | 分析原料性质及生产工艺条件对聚酯切片端羧基的影响，提高酯化段最终酯化率及EG物质的量比、提高缩聚系统真空度、适当降低缩聚反应温度，可以降低切片端羧基。
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| 关 键 词： | 聚酯 端羧基 酯化率 |
Discussion on the method of reducing content of carboxyl end groups in PET chip |
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| QING Hong.Discussion on the method of reducing content of carboxyl end groups in PET chip[J].Polyester Industry,1999,12(4):31-33,37. |
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| Authors: | QING Hong |
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| Abstract: | The PTA quality and process parameters which affected the carboxyl end group in polyester chipwere studied.The result indicated that the consistency of carboxyl end groups in PET chip was cut down byincreasing some process parameters such as final esterification ratio of esterification process, mole ratio ofEG, vacuum of polycondensation system and by reducing ttemperature of polycondensation. |
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| Keywords: | polyester carboxyl end groups esterification ratio |
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