Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5203582 | Polymer Degradation and Stability | 2011 | 7 Pages |
Abstract
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-PLA) composites containing PCPP were prepared by melt blending method. Thermal degradation behavior and combustion properties of FR-PLA 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-PLA 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 5Â 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.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Kang Tao, Juan Li, Liang Xu, Xiulan Zhao, Lixin Xue, Xinyu Fan, Qing Yan,