无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2014, Vol. 46 ›› Issue (7): 36-.

• 论文 • 上一篇    下一篇

高聚合度聚磷酸铵的合成及表征

方 芳,刘代俊,陈建钧   

  1. 四川大学化工学院,四川成都 610065
  • 出版日期:2014-07-10 发布日期:2014-07-07

Synthesis and characterization of ammonium polyphosphate with high degree of polymerization

 FANG   Fang, LIU  Dai-Jun, CHEN  Jian-Jun   

  1. College of Chemical Engineering,Sichuan University,Chengdu 610065,China
  • Online:2014-07-10 Published:2014-07-07

摘要: 在常压下合成了高聚合度聚磷酸铵,并对其结构与性能进行了表征。其优化配方为:n(五氧化二磷)∶ n(磷酸氢二铵)∶n(尿素)∶n(三聚氰胺)为1∶1∶0.3∶(0.02~0.14),反应时间为300 min,温度为290 ℃。X射线衍射和红外光谱表征结果表明,所合成的产物为Ⅱ型聚磷酸铵;粘度法测定该产品平均聚合度与德国科莱恩无卤阻燃剂Exolit 422 聚磷酸铵比较接近;五氧化二磷的质量分数为74.88%;在水中的溶解度仅0.455 g(以100 g水计);热重分析结果表明该产物的初始分解温度与Exolit 422 聚磷酸铵接近。

关键词: 聚磷酸铵, 五氧化二磷, 三聚氰胺, 高聚合度

Abstract: Ammonium polyphosphate with high polymerization degree was synthesized under programming controlled temperature and atmospheric pressure.The structure and performance of products were characterized.The optimized formula was as follows:n(phosphorous pentoxide)∶n(diammonium phosphate)∶n(urea)∶n(melamine)=1∶1∶0.3∶(0.02~0.14),reactive time was 300 min,and reactive temperature was 290 ℃.The results of XRD and IR showed that the product was type-Ⅱ ammonium polyphosphate;the average polymerization degree measured by viscosity method approached to that of Exolit 422 APP of Germany Clariant;the mass fraction of P2O5 was 74.88%;the solubility in water was only 0.455 g(per 100 g H2O);and the thermogravimetic analysis showed the initial decomposition temperature of this product also approached to that of Exolit 422 APP.

Key words: ammonium polyphosphate, phosphorous pentoxide, melamine, high degree of polymerization

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