EXPERIMENTAL STUDIES ON PROCESSING OF POLYBUTADIENE-BASED SOLID PROPELLANT TO EXTRACT AMMONIUM PERCHLORATE

تاثیر استفاده از آمونیوم پرکلرات با دو اندازه (درشت و ریز) بر ویسکوزیته پیشرانه جامد مرکب‌(علمی-پژوهشی)

Concentrated suspension of binders in composite propellant causes a complex phenomena so that controlling of rheology properties is difficult due to high percentage of fillers. Composite solid propellant contains paste suspension of mixtures of different components, e.g. oxidizer, fuel and binder. Increasing the percentage of solid phase without increment of viscosity is an important subject in...

Ammonium Perchlorate and Ammonium Perchlorate - Binder Sandwich Combustion

مروری بر رفتار تجزیه حرارتی آمونیوم پرکلرات در حضور نانوکاتالیزورهای اسپینلی(علمی-ترویجی)

Composite solid propellants are the major source of chemical energy in space vehicles and missiles. Composite propellants are composed of crystalline oxidizer particles dispersed in polymeric fuel binder. Ammonium perchlorate (AP) is used as the most common oxidizer and hydroxyl terminated polybutadiene (HTPB) as the fuel binder. The ballistics of a composite propellant can be improved by addin...

Large Class 1.3 Rocket Motor Detonation Character

Large explosive class 1.3 solid .propellant rocket motors utilizing polybutadiene binder, aluminum fuel, and ammonium perchlorate oxidizer are typically considered explosively vlsafell. That is, the required stimulus is so large that motor detonation is extremely unlikely, even when donored by a sizeable high explosive charge. Two large ground cratering events have occurred during recent years ...

Combustion Response of Ammonium Perchlorate

AmodiŽ ed Price–Boggs–Derr model is applied to compute the linear and nonlinear combustion response properties of monopropellant ammonium perchlorate (AP). The kinetics constants were changed to achieve good agreement with response function data as well as with steady-state data. The numerical method was Ž rst validated with the classical theory. Computations using the Levine and Culick boundar...