| PET/ZnO纳米复合材料的制备及结晶性能 |
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| 引用本文： | 包永忠,黄志明,翁志学.PET/ZnO纳米复合材料的制备及结晶性能[J].塑料工业,2004,32(10):21-23. |
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| 作者姓名： | 包永忠 黄志明 翁志学 |
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| 作者单位： | 浙江大学高分子工程研究所,浙江,杭州,310027 |
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| 基金项目： | 浙江省重大科技计划项目 (项目编号 0 1110 160 9) |
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| 摘 要： | 通过纳米ZnO存在下的对苯二甲酸／乙二醇(TPA／EG)酯化和缩聚反应制备聚对苯二甲酸乙二醇酯(PET)／ZnO纳米复合材料，研究了纳米ZnO用量及其分散方式对PET粘均摩尔质量、纳米ZnO在复合物中的分散及聚乙二醇(PEG)结晶性能的影响。发现纳米ZnO及分散改性剂(PEG)的加入，对合成PET的粘均摩尔质量均有一定影响；纳米ZnO在EG中直接分散再缩聚形成的复合物中，纳米ZnO团聚严重、分散性差，PET的结晶度和结晶速率降低；在纳米ZnO分散过程中加入PEG可以降低纳米ZnO在复合物中的团聚，提高分散性，PET的结晶度和结晶速率提高。
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| 关 键 词： | 聚对苯二甲酸乙醇酯 纳米ZnO 复合材料 分散 结晶 |
| 文章编号： | 1005-5770(2004)10-0021-03 |
| 修稿时间： | 2004年7月1日 |
Preparation and Crystalline Properties of PET/ZnO Nano-meter Composite |
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| BAO Yong-zhong,HUANG Zhi-ming,WENG Zhi-xue.Preparation and Crystalline Properties of PET/ZnO Nano-meter Composite[J].China Plastics Industry,2004,32(10):21-23. |
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| Authors: | BAO Yong-zhong HUANG Zhi-ming WENG Zhi-xue |
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| Abstract: | Poly(ethylene terephathalate)/ZnO(PET/ZnO)nano-meter composites were prepared by means of esterization and condensation reactions of terephathalic acid/ethyl glyol (TPA/EG)in the presence of nano-meter ZnO.The effects of the content and dispersion method of nano-meter ZnO on the viscosity average molecular weight of PET,the dispersion of nano-meter ZnO in the composite and the crystalline properties of PET were investigated.It was found that the introduction of nano-meter ZnO and poly(ethyl glycol)(PEG)dispersing agent to the reaction system had influence on the viscosity average molecular weight of PET.The direct dispersion of nano-meter ZnO in EG resulted in an aggregation of ZnO in PET,lowered the crystalline degree and rate of PET.Nano-meter ZnO particles dispersed well in the composite when PEG was added during the ZnO dispersion process,and the resulted PET had higher crystallization degree and rate. |
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| Keywords: | PET Nano-meter ZnO Composite Dispersion Crystallization |
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