| 关于控制PET／PEN共混物酯交换反应的研究 |
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| 引用本文： | 盛平厚,余瑛,吴刚. 关于控制PET／PEN共混物酯交换反应的研究[J]. 塑料工业, 2001, 29(1): 10-12 |
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| 作者姓名： | 盛平厚 余瑛 吴刚 |
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| 作者单位： | 北京化工大学材料科学与工程学院 |
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| 基金项目： | 本工作得到国家自然科学基金（59873003）资助. |
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| 摘 要： | 通过在聚对苯二甲酸乙二酯和聚二甲酸乙二酯的共混体系中加入不同种类，不同含量的热稳定剂或酯交换阻止剂，在300℃左右，经不同时间的熔融共混后取样，再经DSC、NMR测试观察，发现所使用的化学试剂不能阻酯交换反应的发生，酯交换反应程度与所加化学试剂的种类、含量基本夫关，而随熔融共混时间的缩短而受到抑制。
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| 关 键 词： | 聚对苯二甲酸乙二酯 聚二甲酸乙二酯 共混 酯交换反应 |
| 修稿时间： | 2000-09-25 |
Studies on Transesterification Reaction in PET/PEN Melt Blend |
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| Sheng Pinghou,Yu Ying,Wu Gang. Studies on Transesterification Reaction in PET/PEN Melt Blend[J]. China Plastics Industry, 2001, 29(1): 10-12 |
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| Authors: | Sheng Pinghou Yu Ying Wu Gang |
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| Abstract: | PET／PEN melt blended samples were prepared under various processing conditions．Effect of such factors，i．e．the kind of chemical stabilizaer，the content of the stabilizer and blending time on the transesterification level in the blended samples was studied by means of nuclear magnetic resonance（NMR） spectroscopy and differential scanning calorimitry（DSC）．Results indicated that the transesterification reaction was significantly inhibited by shortening the melt blending time，but the influence of both the kind and content of stabilizer on the ester change reaction was negligible． |
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| Keywords: | PET PEN Blend Transesterification |
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