Effect of thermal conductive structure on non-isothermal crystallization behavior of polyethylene terephthalate

被引：0

作者：

Xu X. ^{[1
]}

Jiang Z. ^{[1
,2
,3
]}

Zheng Q. ^{[1
]}

Zhu K. ^{[1
]}

Wang C. ^{[3
]}

Ke F. ^{[3
]}

机构：

[1] School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai

[2] Research Center for Advanced Mirco-and Nano-Fabrication Materials, Shanghai University of Engineering Science, Shanghai

[3] Key Laboratory of High Performance Fibers & Products, Ministry of Education, Donghua University, Shanghai

来源：

Fangzhi Xuebao/Journal of Textile Research | 2022年 / 43卷 / 03期

关键词：

Carbon nanotube; Graphene; Non-isothermal crystallization kinetics; Polyethylene terephthalate; Thermal conductive structure;

D O I：

10.13475/j.fzxb.20210310006

中图分类号：

学科分类号：

摘要：

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. © 2022, Periodical Agency of Journal of Textile Research. All right reserved.

引用

页码：44 / 49

页数：5

共 20 条

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