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Paper Information

Journal:   JOURNAL OF ENERGETIC MATERIALS   SUMMER 2012 , Volume 7 , Number 2(15); Page(s) 27 To 37.
 
Paper: 

AMMONIUM PERCHLORATE NANO PARTICLES PRODUCTION BY MICROEMULSION-FREEZE DRYING METHOD

 
 
Author(s):  ZANJIRIAN E.*
 
* ENGINEERING RESEARCH INSTITUTE OF IRANIAN SPACE AGENCY
 
Abstract: 

Ammonium perchlorate is one of the most important oxidants being used in the production of composite solid propellant whose shape and particle size have a great impact on its characteristics. In this research, in order to produce the nano-particles, the micro-emulsion of ammonium perchlorate salt in the presence of active surfactant materials has been produced and frozen in the liquid nitrogen before finally turned in the nano-particles using the freeze drying technique. The experiment results show that the parameters such as the emulsion stability, the type of active surfactant material, co-activator, type of oil, the mass ratio of the components in the emulsion, mixing rate, freezing method, and the temperature have a great influence on the particles’ shape and size. Having considered and examined all the above mentioned parameters, the nano-particles with the average diameter of 40-150 nm with spherical shape have been finally produced.

 
Keyword(s): NANO-POWDER, AMMONIUM PERCHLORATE, MICRO-EMULSION, FREEZE DRYER
 
References: 
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