Hydroxylamine perchlorate (HAP) is a new energetic oxidizer. The thermal decomposition of pure HAP and the effects of additives on thermal decomposition of HAP were studied by using TG and DTA in nitrogen atmosphere. ...Hydroxylamine perchlorate (HAP) is a new energetic oxidizer. The thermal decomposition of pure HAP and the effects of additives on thermal decomposition of HAP were studied by using TG and DTA in nitrogen atmosphere. The additives are 4 0% NH 4ClO 4, 3 0% HClO 4, and 0 29% FeCl 3 respectively. The TG curves of the above four systems were determined. The experimental results indcate that FeCl 3 has a promoting effect on the decomposition of HAP,but NH 4ClO 4 and HClO 4 have no such effect on the decomposition of HAP. NH 4ClO 4 acts as an inert substance, and HClO 4 has a weak retarding effect on the decomposition of HAP. By using non isothermal TG DTG,the thermal decomposition kinetic equations of the four systems were obtained. Through comparing the kinetic parameters of the four systems,the order of decomposition activation energy ( E ) and reaction order ( n ) were found: HAP+0 29% FeCl 3<HAP<HAP+4 0% NH 4ClO 4<HAP+3 0%HClO 4 This also indicates the order of thermal stability of the four systems. The thermal decomposition data of DTA show that the decomposition heat of HAP is -699 91 kJ·g -1 and the decomposition peak temperature of HAP is 498 13 K. With the decomposition peak temperature of HAP+FeCl 3 falling to 432 90 K, the ones of HAP+NH 4ClO 4 and HAP+HClO 4 increase to 520 03 K and 532 90 K respectively.展开更多
文摘Hydroxylamine perchlorate (HAP) is a new energetic oxidizer. The thermal decomposition of pure HAP and the effects of additives on thermal decomposition of HAP were studied by using TG and DTA in nitrogen atmosphere. The additives are 4 0% NH 4ClO 4, 3 0% HClO 4, and 0 29% FeCl 3 respectively. The TG curves of the above four systems were determined. The experimental results indcate that FeCl 3 has a promoting effect on the decomposition of HAP,but NH 4ClO 4 and HClO 4 have no such effect on the decomposition of HAP. NH 4ClO 4 acts as an inert substance, and HClO 4 has a weak retarding effect on the decomposition of HAP. By using non isothermal TG DTG,the thermal decomposition kinetic equations of the four systems were obtained. Through comparing the kinetic parameters of the four systems,the order of decomposition activation energy ( E ) and reaction order ( n ) were found: HAP+0 29% FeCl 3<HAP<HAP+4 0% NH 4ClO 4<HAP+3 0%HClO 4 This also indicates the order of thermal stability of the four systems. The thermal decomposition data of DTA show that the decomposition heat of HAP is -699 91 kJ·g -1 and the decomposition peak temperature of HAP is 498 13 K. With the decomposition peak temperature of HAP+FeCl 3 falling to 432 90 K, the ones of HAP+NH 4ClO 4 and HAP+HClO 4 increase to 520 03 K and 532 90 K respectively.
