A novel phosphazene cyclomatrix network polymer: Design, synthesis and application in flame retardant polylactide

被引：100
|
作者：
Tao, Kang [1 ]
Li, Juan [1 ]
Xu, Liang [1 ]
Zhao, Xiulan [1 ]
Xue, Lixin [1 ]
Fan, Xinyu [1 ]
Yan, Qing [1 ]
机构：
[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo Key Lab Polymer Mat, Ningbo 315201, Zhejiang, Peoples R China
来源：
POLYMER DEGRADATION AND STABILITY | 2011年 / 96卷 / 07期
关键词：
Network polymer; Polyphosphazene; Char; Intumescent flame retardant; Polylactide; AMMONIUM POLYPHOSPHATE; CHARRING AGENT; TRIAZINE; HYDROXIDE; FIBER; ACID;
D O I：
10.1016/j.polymdegradstab.2011.04.011
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 phosphazene cyclomatrix network polymer poly(cyclotriphosphazene-co- pentaerythritol) (PCPP) was synthesized and characterized based on an attempt to look for a high efficient and green intumescent flame retardant. A series of flame retardant polylactide (FR-PEA) composites containing PCPP were prepared by melt blending method. Thermal degradation behavior and combustion properties of FR-PEA composites were evaluated through thermogravimetric analysis, UL-94 experiments, limiting oxygen index and cone calorimeter tests. It is found that the weight of residues for FR-PEA composites improved greatly with the addition of PCPP. Additionally, PCPP show a high flame retardant efficiency for PLA, UL-94 V-0 could be passed only containing 5 wt% PCPP. Fourier transform infrared spectra and scanning electronic microscopy investigations reveal that the residual chars are compact and foaming containing P-O-C structure, which restrains the development of fire and increases the flame retardant properties. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1248 / 1254
页数：7
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