Preparation and study of the flame retardant properties of C60/PMMA microspheres

被引:7
|
作者
Xu, Lanjuan [1 ,2 ]
Jiang, Juncheng [1 ,3 ]
Ni, Lei [1 ]
Chen, Zhiquan [1 ]
Li, Chao [1 ,2 ]
机构
[1] Nanjing Tech Univ, Coll Safety Sci & Engn, Nanjing 210009, Jiangsu, Peoples R China
[2] Binzhou Univ, Coll Chem Engn & Safety, Binzhou 256600, Shandong, Peoples R China
[3] Changzhou Univ, Sch Environm & Safety Engn, Changzhou 213164, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
FULLERENE C-60; GRAPHENE; NANOCOMPOSITES; TRANSPARENT; PARTICLES;
D O I
10.1039/d2ra03642h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In this paper, highly flame retardant C-60/PMMA composites were prepared using an in situ polymerization method by introducing fullerene (C-60) into polymethyl methacrylate (PMMA) to improve its combustion characteristics. The apparent morphologies of PMMA and C-60/PMMA microspheres were observed by scanning electron microscopy (SEM), and the structure was characterized by infrared spectroscopy (FT-IR). The thermal stability and flame retardancy were characterized using a synchronous thermal analyzer, a cone calorimeter and an oxygen index tester. The results show that the maximum initial decomposition temperature of C-60/PMMA-2 (prepared using C-60 with a concentration of 2 mg mL(-1)) is 234.89 degrees C, which is about 59.89 degrees C higher than that of PMMA, and the thermal stability is the best. The limiting oxygen index of the C-60/PMMA-2 composite is 21.8, which is 28.2% higher than that of pure PMMA. In addition, the peak heat release rate (PHRR) of C-60/PMMA is reduced by 630.4 kW m(-2) when compared with pure PMMA, which means that the flame retardant property is improved. Meanwhile, the mechanical properties of the PMMA are also improved by adding C-60.
引用
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页码:22623 / 22630
页数:8
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