| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5203689 | Polymer Degradation and Stability | 2010 | 8 Pages |
Abstract
Ammonium polyphosphate (APP) with crystalline form V (APP-V) was synthesized by heating a mixture of 85% food-grade phosphoric acid and melamine under dry ammonia atmosphere. Effects such as raw material ratios, charging methods, dehydration temperature, condensation temperature and condensation time were investigated. Its water solubility was tested, its XRD and FTIR were characterized and compared with those of industrial APP-I and APP-II. Results showed that the prepared APP-V was insoluble in water, its XRD spectrum was the same as APP-V in literature. The molecular structures of the prepared APP-V and APP-I/APP-II were speculated and discussed in detail.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Gousheng Liu, Wenyan Chen, Xinchun Liu, Jianguo Yu,