| 纤维素芳族酯热致液晶对PET结晶成核作用的研究 |
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| 引用本文： | 阮文红,沈经炜,李白千.纤维素芳族酯热致液晶对PET结晶成核作用的研究[J].高等学校化学学报,1998,19(3):469-471. |
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| 作者姓名： | 阮文红 沈经炜 李白千 |
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| 作者单位： | 四川联合大学塑料工程系, 成都, 610065 |
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| 摘 要： | 用自制的热致液晶性纤维素芳族酯(CAE)作聚对苯二甲酸乙二醇酯(PET)的成核剂,研究了PET/CAE体系(CAE含量≤1%)在110～200℃温度范围内的等温结晶动力学特性.结果表明,CAE能显著加快PET结晶速率(Z),Z随结晶温度和CAE含量变化均有极大值Zmax(TC)和Zmax(WCAE),Zmax(TC)对应的温度Tmax随CAE含量增加而降低,CAE促进PET结晶的作用机理与普通成核剂不同.
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| 关 键 词： | 聚对苯二甲酸乙二醇酯(PET) 纤维素芳族酯 热致液晶 结晶动力学 |
| 收稿时间： | 1996-11-12 |
Studies on Nucleation of Cellulose Aromatic Ester Thermotropic Liquid Crystal on Polyethylene Terephthalate |
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| RUAN Wen-Hong,SHEN Jing-Wei,LI Bai-Qian.Studies on Nucleation of Cellulose Aromatic Ester Thermotropic Liquid Crystal on Polyethylene Terephthalate[J].Chemical Research In Chinese Universities,1998,19(3):469-471. |
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| Authors: | RUAN Wen-Hong SHEN Jing-Wei LI Bai-Qian |
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| Institution: | Department of Plastics Engineering, Sichuan Union University, Chengdu, 610065 |
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| Abstract: | Using a self prepared cellulose aromatic ester(CAE) thermotropic liquid crystal as polyethylene terephthalate(PET) nucleating agent, the isothermal crystallizing kinetics characteristics of PET/CAE(CAEcontent≤1%) in the temperature range of 110～200 ℃ were investigated. The results show that CAEcan significantly accelerate crystallizing rate (Z) of PET, with the change of crystallizing temperature and CAE content, Zhas a maximum value Zmax (TC) and Zmax ( WCAE), the temperature Tmax corresponding to Zmax (TC) decreases with the increase of CAE content. The mechanism of CAE accelerating PET crystallization is different from that of common nucleating agent. |
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| Keywords: | Polyethylene terephthalate(PET) Cellulose aromatic ester Thermotropic liquid crystal Crystallizing kinetics |
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