Effect of Polyacrylic Acid Potassium Salt Doped Phase-Sincerely Ammonium Nitrate

摘要：

In order to restrain or prevent ammonium nitrate（AN）phase transition, Polyacrylic acid potassium salt(PAK) was added to AN samples and the effects of polymers on AN phase transition were studied by differential scanning calorimetry (DSC) method and scanning electron micrograph (SEM). The results show that potassium polyacrylic acid prevents the transition of Ⅳ-Ⅲ effectively. As can be seen form the DSC trace of polyacrylic acid potassium salt doped phase-stabilized ammonium nitrate（PAK-PSAN） there is no endothermic peak below 100℃. The SEM show that PAK-PSAN is more unshapeder than pure AN. The effect of polymer on AN phase transition results from that polymer strengthens the hydrogen-bond network and baffle the turn of NO3-. On the other hand, it is possible that replacing N-H… O hydrogen bonding would result in better thermal stability by replacing an ammonium by K ion in crystal type.

关键词： ammonium nitrate phase transition polymer DSC SEM

作者: LI Bindong L(U) Chunxu QIAO Juan

作者单位: School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094,Jiangsu,China

会议类型: 国际会议

会议名称: 2009 International Autumn Seminar on Propellants,Ezplosives and Pyrotechnics(2009国际推进剂、炸药、烟火技术秋季研讨会)

会议地点: 昆明

会议语种:英文

页码: 1-3

在线出版日期: 2009-09-22（万方平台首次上网日期，不代表论文的发表时间）