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Citation: ZHANG Ze-Jiang, MEI Xiu-Juan, FEN Liang-Rong, QIU Fa-Li. Preparation and Characterization of Melamine Polyphosphate as a Flame Retardant[J]. Chinese Journal of Applied Chemistry, ;2003, 20(11): 1035-1038. shu

Preparation and Characterization of Melamine Polyphosphate as a Flame Retardant

1.
a Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041;
2.
b Ministry of Public Security Sichuan Fire Fighting Research Institute, Chengdu

Corresponding author: ZHANG Ze-Jiang,
Received Date: 24 February 2003
Available Online: 9 June 2003
Fund Project: 国家重点基础研究专项经费资助(973)(2001CB409607) (973)(2001CB409607)

Melamine polyphosphate(MPOP) was synthesized from melamine and polyphosphoric acid in methanol using silicotungstic acid as catalyst and characterized by elemental analysis, IR, XRD, TG and DSC. Its fire retardant performance is evaluated. The results show that melamine polyphosphate prepared has higher purity and yield. The thermal analysis shows melamine polyphosphate undergoes a continuously rapid mass loss until 684.8℃. The residue is 43.52% of the original mass. A distinct heat absorption is found at 653.5℃ on DSC curve of melamine polyphosphate with heat absorption capacity of 629.1 J/g. A melamine polyphosphate coating in 1 mm thickness on five-ply board gives a 16 minutes fire-resistance limit as obtained in a big panel combustion test. The foaming capacity is 50~60.
- melamine polyphosphate,
- fire-retardant agent,
- preparation
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