Energetics and Compatibility of Plasticizers in Composite
and mechanical properties of the cured propellant and energetics. Two types of typical polymeric binders used for making composite solid propellants - PBAN and HTPB were selected for the present study. 2. PLASTICIZER CHARACTERISTICS The characteristics of the plasticizers used for this study are listed in Table 1.
Energetics and Compatibility of Plasticizers in Composite
... 7 Plasticizers generally used in composite propellants are low molecular weight, non-volatile, non-reactive esters, or hydrocarbons which are compatible with the binder system. 8 Some of...
A review on viscoelastic behaviour of plasticizers in ap/al
For solid rocket propellant, it is crucial to analyze the compatibility of the plasticizer to be used with the specific composite propellant base, as the workability of the plasticizer molecule with the polymer binder varies, which has a substantial impact on propellant slurry production [28], [29].
Investigation of the Compatibility of a Novel
Plasticizers were added to the polymeric networks to improve the performance of the composite solid propellants. Energetic plasticizers were used to increase the energy content, in addition to improving the glass transition temperature and mechanical properties.
Energetics and Compatibility of Plasticizers in Composite
In this paper a comparative analysis on the energetics of ester type plasticizers such as dioctyl adipate (DOA), dioctyl phthalate (DOP),dibutyl sebacate (DBS), isodecyl pelargonate (IDP), trioctylphosphate (TOF), diethyl phthalate (DEP), tricresyl phosphate (TCP)and dibutyl phthalate (DBP) and hydrocarbon type plasticizers such as polybutene
- Are energetic groups better than non-energetic plasticizers?
- Energetic groups impart enhanced potential for delivering superior performance. In the present paper, a comparative study is done between NBR based composite solid propellant formulations with energetic (DEGDN and TEGDN) and non-energetic (DAP and DBP) plasticizers.
- What is solid composite propellant?
- The solid composite propellant is a type of engine fuel for the rocket motor, which is the most important component in rocket science because it generates thrust to lift the rocket. There are numerous types of rocket engine fuel, including liquid, solid, and hybrid fuel systems.
- What type of plasticizer is used in solid rocket propellant?
- According to Mohd Nurazzi et al. , some plasticizers are classified based on their molecular weight, and the most prevalent plasticizer type used in polymer industries, including solid rocket propellant applications, is the low molecular weight type, which consists of non-volatile, non-reactive esters that are compatible with the binder matrix.
- Do plasticizers affect the homogeneity of propellant?
- On top of that, most researchers have proven that the most crucial behaviour of the plasticizers is the particle migration that will affect the homogeneity of the propellant composition. This unwanted phenomenon was proven by the experimental work using chromatographic and Shore A hardness analysis of the propellant layer.
- What is the difference between inert and energetic plasticizer based compositions?
- End of mix viscosity and burning rate of energetic plasticizer based compositions is approximately twice of the inert plasticizer based compositions. There is up to 60 % increase in TS and modulus while elongation is reduced by 20 %. Pressure index increases from 0.159 to 0.310 for DBP to DEGDN based propellant.
- What are energetic plasticizers?
- Binders with energetic plasticizers besides boosting energy also enhance the structural integrity of the propellant composition. In recent energetic compositions, energetic plasticizers such as NG, BTTN, DEGDN and TEGDN replace conventional plasticizers as they possess positive heat of the explosion and energetic groups in the same molecule.
