| 导热结构对聚对苯二甲酸乙二醇酯非等温结晶行为的影响 |
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| 引用本文： | 徐晓彤,江振林,郑钦超,朱科宇,王朝生,柯福佑. 导热结构对聚对苯二甲酸乙二醇酯非等温结晶行为的影响[J]. 纺织学报, 2022, 43(3): 44-49. DOI: 10.13475/j.fzxb.20210310006 |
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| 作者姓名： | 徐晓彤 江振林 郑钦超 朱科宇 王朝生 柯福佑 |
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| 作者单位： | 1.上海工程技术大学 化学化工学院, 上海 2016202.上海工程技术大学 微纳制造先进材料研究中心, 上海 2016203.东华大学 高性能纤维及制品教育部重点实验室, 上海 201620 |
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| 基金项目： | 上海市“扬帆计划”人才项目(19YF1417800) |
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| 摘 要： | 针对聚对苯二甲酸乙二醇酯(PET)中的导热结构会影响纤维材料加工成形、纺织品加工过程以及纤维性能的问题,通过熔融共混法分别制备得到含有碳纳米管、石墨烯的PET复合材料,借助差示扫描量热仪对PET的非等温结晶动力学进行研究.结果表明:掺杂的碳纳米管、石墨烯在PET中起成核剂作用,其质量分数的增加对PET的结晶温度、结晶速...
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| 关 键 词： | 聚对苯二甲酸乙二醇酯 石墨烯 碳纳米管 非等温结晶动力学 导热结构 |
| 收稿时间： | 2021-03-29 |
Effect of thermal conductive structure on non-isothermal crystallization behavior of polyethylene terephthalate |
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| XU Xiaotong,JIANG Zhenlin,ZHENG Qinchao,ZHU Keyu,WANG Chaosheng,KE Fuyou. Effect of thermal conductive structure on non-isothermal crystallization behavior of polyethylene terephthalate[J]. Journal of Textile Research, 2022, 43(3): 44-49. DOI: 10.13475/j.fzxb.20210310006 |
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| Authors: | XU Xiaotong JIANG Zhenlin ZHENG Qinchao ZHU Keyu WANG Chaosheng KE Fuyou |
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| Affiliation: | 1. School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China2. Research Center for Advanced Mirco-and Nano-Fabrication Materials, Shanghai University of Engineering Science, Shanghai 201620, China3. Key Laboratory of High Performance Fibers & Products, Ministry of Education, Donghua University, Shanghai 201620, China |
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| Abstract: | The thermal conductive structure in polyethylene terephthalate will affect the processability of fiber materials and textiles, and various properties of the fiber. Polyethylene terephthalate (PET) composite containing carbon nanotubes (CNTs) and graphene (GR) was prepared by fusion mixing, and the non-isothermal crystallization kinetics of PET was studied by differential scanning calorimetry. The results show that doped carbon nanotubes and graphene act as nucleators in PET, and the increase in their mass fraction promotes the crystallization temperature, crystallization rate and crystallinity. The crystalline activation energies of pure PET, PETs doped with carbon nanotubes and graphene were -95.23、-160.27 and -176. 79 kJ/mol, respectively, calculated using Kissinger method. The increase of the absolute value of crystallization activation energy promotes the movement of macromolecule chain and accelerates the exothermic process of crystallization. The results show that CNTs and GR promote the crystallization rate and nucleation of PET, and the 2-D sheet thermal conductivity of graphene favors PET crystallization. |
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| Keywords: | polyethylene terephthalate graphene carbon nanotube non-isothermal crystallization kinetics thermal conductive structure |
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