高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (12): 2494.

• 研究论文 • 上一篇    下一篇

网状结构结晶V型聚磷酸铵的合成与表征

陈文彦,刘心纯,刘够生,于建国   

  1. 华东理工大学化学工程联合国家重点实验室, 上海 200237
  • 收稿日期:2010-02-03 修回日期:2010-06-07 出版日期:2010-12-10 发布日期:2010-12-06
  • 通讯作者: 刘够生 E-mail:gsliu@ecust.edu.cn
  • 作者简介:刘够生, 男, 博士, 教授, 主要从事材料化学工程中的理论与实验研究.
  • 基金资助:

    国家科技支撑项目(批准号: 2007BAE58B03)和上海市科委西部计划项目(批准号: 10195801600)资助.

Synthesis and Characterization of Reticulated Structure Ammonium Polyphosphate with Crystal Form V

CHEN Wen-Yan, LIU Xin-Chun, LIU Gou-Sheng*, YU Jian-Guo   

  1. State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
  • Received:2010-02-03 Revised:2010-06-07 Online:2010-12-10 Published:2010-12-06
  • Contact: Gou-Sheng LIU E-mail:gsliu@ecust.edu.cn
  • About author:刘够生, 男, 博士, 教授, 主要从事材料化学工程中的理论与实验研究.
  • Supported by:

    National Science and Technology Supporting Program;West Region Plan Project in Science and Technology Commission of Shanghai Municipality

摘要: 以85%的食品级磷酸为原料,三聚氰胺为缩合剂,合成了一种具有网状结构的结晶V型聚磷酸铵,对其水溶性、XRD、13C NMR、红外光谱、热重等进行了测试与表征,并与结晶I型、结晶Ⅱ型产品进行了对比。结果表明,本实验制备产品具有良好的耐水性, 其XRD图谱与结晶V型完全一致,其13C NMR及红外图谱表明该物质是以三嗪环为基本骨架的聚磷酸铵链交联网状结构。热重分析表明,700℃时该产品残重53.6%,大于结晶I型的40.29%及结晶II型的36.16%,初步显示该产品具有良好的高温热稳定性。

关键词: 聚磷酸铵, 结晶V型, 耐水性, 热稳定性

Abstract: Ammonium polyphosphate (APP) with reticulated structure was prepared by heating a mixture of 85% food grade phosphoric acid and melamine under wet ammonia atmosphere. Its water-solubility, XRD, 13C NMR, FTIR and TG were investigated, and compared with those of APP-I and APP-II. Results show that this product has excellent water-resistence, its XRD spectrum is similar to that of APP-V in literature, its 13C NMR and FTIR spectra show that this product is a cross-linked and reticulated structure of ammonium polyphosphate chains with triazine ring as basebone. TG tests show that the residual weight at 700℃ for this product is 53.6% , higher than 40.29% for APP-I and 36.18% for APP-II, meaning its excellent thermal stability at high temperature.

Key words: Ammonium polyphosphate, crystal form V, Water resistance, Thermal stability.

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