Glucose-Derived Carbon Nanospheres as Flame Retardant for Polyethylene Terephthalate

被引：0
|
作者：
Li, Jiaqian [1 ,2 ]
Yang, Yaru [1 ,2 ]
Xiao, Yunchao [1 ,2 ,3 ]
Tang, Bolin [1 ,2 ]
Ji, Yaming [1 ,2 ]
Liu, Shuqiang [4 ]
机构：
[1] College of Materials and Textile Engineering, Jiaxing University, Jiaxing, China
[2] Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province, Jiaxing University, Jiaxing, China
[3] Nanotechnology Research Institute, Jiaxing University, Jiaxing, China
[4] College of Textile Engineering, Taiyuan University of Technology, Yuci, China
来源：
Frontiers in Materials | 2021年 / 8卷
关键词：
Carbon nanosphere - Derived carbons - Flame retardant properties - Flame-retardancy - Initial decomposition temperatures - Limiting Oxygen Index - matrix - Peak heat release rates - Performance - Synthesised;
D O I：
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学科分类号：
摘要：
To improve the flame retardant properties of polyethylene terephthalate (PET), glucose-derived carbon nanospheres (CNSs) were synthesized and introduced into PET matrix. The thermal property and flame retardancy of CNSs/PET composites were thoroughly investigated. Results showed that CNSs displayed good flame-retardant performance for PET. When blended with only 1.0 wt.% of CNSs, CNSs/PET exhibited a limiting oxygen index (LOI) of 26.3 and a vertical combustion class of V-2, and its peak-heat release rate (pk-HRR) was reduced by 41.6%. Importantly, the initial decomposition temperature and the maximum weight loss temperature of CNSs/PET were 52°C and 199°C higher than those of PET, respectively. Furthermore, a condensed phase flame-retardant mechanism appeared in CNSs/PET, which formed a dense and thermally stable protective char layer during combustion. Overall, this study disclosed the flame-retardant potential and possible mechanism of CNSs for polyesters, which would benefit the development of carbon-based materials and flame-retardant polymers. Copyright © 2021 Li, Yang, Xiao, Tang, Ji and Liu.
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