Synthesis of functionalized α-zirconium phosphate modified with intumescent flame retardant and its application in poly(lactic acid)

被引：59
作者：
Liu, Xue-Qi [1 ]
Wang, De-Yi [1 ]
Wang, Xiu-Li [1 ]
Chen, Li [1 ]
Wang, Yu-Zhong [1 ]
机构：
[1] Sichuan Univ, Ctr Degradable & Flame Retardant Polymer Mat, State Key Lab Polymer Mat Engn, Coll Chem,Natl Engn Lab Ecofriendly Polymer Mat S, Chengdu 610064, Peoples R China
来源：
POLYMER DEGRADATION AND STABILITY | 2013年 / 98卷 / 09期
基金：
美国国家科学基金会;
关键词：
Poly(lactic acid); Flame retardant; Zirconium phosphate; Cone calorimetry; LAYERED DOUBLE HYDROXIDE; EPOXY-NANOCOMPOSITES; THERMAL-DEGRADATION; POLYETHYLENE; MONTMORILLONITE; POLYPROPYLENE; FLAMMABILITY; BEHAVIORS;
D O I：
10.1016/j.polymdegradstab.2013.06.001
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A novel functionalized alpha-zirconium phosphate (F-ZrP) modified with intumescent flame retardant was synthesized by co-precipitation method and characterized. Poly (lactic acid) (PLA)/F-ZrP nanocomposites were prepared by melt blending method. The thermal stability and combustion behavior of PLA/F-ZrP nanocomposites were investigated by thermogravimetric analysis (TGA), limiting oxygen index (LOI), vertical burning test (UL-94), scanning electronic microscopy (SEM), and cone calorimeter test (CCT). The results showed that the addition of flame retardant F-ZrP slightly affect PLA's thermal stability, but significantly improve the flame retardancy of PLA composites. In comparison with neat PLA, the LOI value of PLA/F-ZrP was increased from 19.0 to 26.5, and the UL-94 rating was enhanced to V-0 as the loading of F-ZrP at 10%. SEM results suggested the introduction of F-ZrP in the PLA system can form compact intumescent char layer during burning. All these results showed that the F-ZrP performed good flame retardancy for PLA. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1731 / 1737
页数：7
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