scholarly journals Novel Composite Solid Propellant with High Resistance to Thermo-oxidative Degradation Reactions, Extended Shelf Life, and Superior Combustion Characteristics

2021 ◽  
Vol 18 (1) ◽  
pp. 143-158
Author(s):  
Sherif Elbasuney ◽  
Eslam Elsaka ◽  
Ahmed Elbeih ◽  
Hossam Mostafa
Keyword(s):  
Shelf Life ◽  
High Resistance ◽  
Solid Propellant ◽  
Oxidative Degradation ◽  
Combustion Characteristics ◽  
Degradation Reactions ◽  
Composite Solid Propellant ◽  
Composite Solid ◽  
Thermo Oxidative Degradation

scholarly journals Research on Creep Constitutive and Numerical Simulation of Composite Solid Propellant

2021 ◽  
Vol 1786 (1) ◽  
pp. 012002
Author(s):  
S.X. Feng ◽  
H.F. Qiang ◽  
Y.X. Liu ◽  
X.R. Wang ◽  
T.J. Geng ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Solid Propellant ◽  
Composite Solid Propellant ◽  
Composite Solid

A novel route to improve the mechanical and rheological properties of HTPE/AP/Al propellant by adding a modified hyperbranched polyester

2020 ◽  
pp. 095400832098343
Author(s):  
Xiaomu Wen ◽  
Ximing Zhang ◽  
Keke Chen ◽  
Yunjun Luo
Keyword(s):  
Rheological Properties ◽  
Solid Propellant ◽  
Casting Process ◽  
Hyperbranched Polyester ◽  
Low Viscosity ◽  
Composite Solid Propellant ◽  
Static Tensile ◽  
Void Structure ◽  
Composite Solid ◽  
Hyperbranched Structure

Both better mechanical and rheological properties are pursued for composite solid propellant. In this work, varying proportions of a modified hyperbranched polyester (MHBPE) were added to HTPE/AP/Al propellant. The static tensile property as one kind of mechanical properties of MHBPE/HTPE/AP/Al propellant were found to be superior to those of blank HTPE/AP/Al propellant as a result of the entanglement and interpenetration of molecular chains caused by the introduction of the hyperbranched structure. Evaluations on the related improved creep resistance and stress relaxation performance further demonstrated the advantages of introduction of MHBPE to HTPE/AP/Al propellant. Rheological properties of HTPE/AP/Al propellant with and without MHBPE during the casting process were investigated and compared and the results confirmed the improvement benefiting from low viscosity and loose void structure. Thus, modified hyperbranched polyester provided a novel route to potentially meet the requirements for propellant manufacturing and applications.

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