| 纳米氧化物作为成核剂对PET结晶速率的影响 |
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| 引用本文： | 陈军 马骏 陈珩炅 陈贤益. 纳米氧化物作为成核剂对PET结晶速率的影响[J]. 中国塑料, 2005, 19(3): 32-35 |
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| 作者姓名： | 陈军 马骏 陈珩炅 陈贤益 |
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| 作者单位： | 南京工业大学材料科学与工程学院 江苏南京210009(陈军，马骏，陈珩炅)，南京工业大学材料科学与工程学院 江苏南京210009(陈贤益) |
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| 摘 要： | 研究了成核剂纳米氧化镁和纳米氧化硅对聚对苯二甲酸乙二醇酯(PET)结晶速率的影响。通过等温结晶差热分析(DSC)研究了纳米氧化镁在不同含量、不同温度下对PET等温结晶行为的影响。用纳米氧化镁和纳米氧化硅填充PET体系的非等温结晶DSC,由所得冷结晶峰温度值和热结晶峰温度值的对比,探索纳米成核剂对PET结晶速率的影响及其规律。研究结果表明:纳米成核剂均能明显提高PET的结晶速率,而纳米氧化镁比纳米氧化硅对促进PET的结晶效果更好;添加不同含量的纳米氧化镁对PET在不同温度下的等温结晶影响不同,在所研究的范围内,1.0%的添加量较有利于PET的结晶。
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| 关 键 词： | 聚对苯二甲酸乙二醇酯 纳米成核剂 结晶速率 |
Effect of Nano-Oxide as a Nucleating Agent on the Crystallization Rate of Polyethylene Terephthalate |
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| CHEN Jun,MA Jun,CHEN Heng-jiong,CHEN Xian-yi. Effect of Nano-Oxide as a Nucleating Agent on the Crystallization Rate of Polyethylene Terephthalate[J]. China Plastics, 2005, 19(3): 32-35 |
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| Authors: | CHEN Jun MA Jun CHEN Heng-jiong CHEN Xian-yi |
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| Affiliation: | CHEN Jun,MA Jun,CHEN Heng-jiong,CHEN Xian-yi~ |
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| Abstract: | The nucleation effects of nano-MgO and nano-SiO_2 during the crystallization of polyethylene terephthalate (PET) was investigated using differential scanning calorimetry (DSC). It indicated that nano-nucleating agents MgO and SiO_2 provided heterogeneous nucleation sites for the PET crystallization with nano-MgO being better than nano-SiO_2. The content of nano-MgO had a major effect on the iso-thermal crystallization of nano-MgO/PET composites and (1.0 wt %) of MgO was considered as an optimum at (125 .) |
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| Keywords: | polyethylene terephthalate nano-nucleating agent crystallization rate |
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