Fire retardancy of bis[2-(methacryloyloxy)ethyl] phosphate modified poly(methyl methacrylate) nanocomposites containing layered double hydroxide and montmorillonite

被引:29
作者
Wang, Linjiang [1 ,2 ,3 ]
Su, Shengpei [4 ]
Chen, Dan [4 ]
Wilkie, Charles A. [1 ,2 ]
机构
[1] Marquette Univ, Dept Chem, Milwaukee, WI 53201 USA
[2] Marquette Univ, Fire Retardant Res Facil, Milwaukee, WI 53201 USA
[3] Guilin Univ Technol, Dept Chem & Mat Engn, Guilin 541004, Peoples R China
[4] Hunan Normal Univ, Dept Chem & Chem Engn, Changsha 410081, Hunan, Peoples R China
关键词
Nanocomposites; Layered double hydroxides; PMMA; Fire retardancy; RIGID POLYURETHANE FOAMS; CLAY NANOCOMPOSITES; THERMAL-DEGRADATION; PHOSPHORUS; POLYSTYRENE; PMMA;
D O I
10.1016/j.polymdegradstab.2009.03.022
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Copolymer nanocomposites were prepared by suspension copolymerization of bis[2-(methacryloyloxy)ethyl] phosphate and methyl methacrylate, together with bis(2-ethylhexyl) phosphate layered double hydroxide and a montmorillonite, Cloisite 93A. X-ray diffraction and transmission electron microscopy were used to characterize the morphology of nanocomposites and the dispersion of additives in the polymer. The thermal stability of the nanocomposites has been assessed by thermogravimetric analysis and cone calorimetry has been used to study the fire properties. Bis[2-(methacryloyloxy)ethyl] phosphate not only copolymerized with MMA, but also aids in the dispersion of additives in PMMA. The copolymer nanocomposites have better dispersion and higher degradation temperature and more char mass than the corresponding PMMA nanocomposites. The largest peak reduction in the heat release rate of the copolymer nanocomposites are 52 and 65% for LDH and MMT additives, respectively. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1110 / 1118
页数:9
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