Effects of Plasticizers on Solid Rocket Propellant Adhesion
Effects of Plasticizers on Solid Rocket Propellant Adhesion The goal of this research is to characterize the mechanical properties of composite solid rocket propellants as they relate to two plasticizers: Dioctyl Adipate (DOA) and Isodecyl Pelargonate (IDP).
Influence of the Binder Structure on the Interfacial Adhesion
(3) In addition, since such energetic plasticizers usually contain nitrate ester groups which are unstable and have an autocatalytic decomposition effect, they will accelerate the decomposition and fracture of the main chain structure in the migration area.
Influence of the Binder Structure on the Interfacial Adhesion
Unlike the migration of traditional inert plasticizers (such as small molecule esters, dioctyl phthalate, dioctyl sebacate, etc.), the migration of energetic plasticizers (such as N -butyl- N -nitratoethyl nitramine) will cause deviation of the energy performance of the propellant from the theoretical value, affecting the internal ballistic
Study of plasticizer diffusion in a solid rocket motor
Small molecule plasticizers and nitroglycerine (NG), which are abundant in propellants, can diffuse and migrate from the propellant column to the inhibitor during storage, seriously damaging the
Solid propellants: AP/HTPB composite propellants - ScienceDirect
Some of the commonly used plasticizers are DOA, NG, GAP, and DEP. 2.6. Curing agent A curing agent causes the prepolymers to form longer chains of larger molecular mass and interlocks between chains. Curing agents are also referred to as crosslinkers. They solidify and harden the binder.
- How does adhesion affect a rocket liner?
- In solid rocket motors, the adhesion of the liner directly impacts the safety of the propellant [8, 9, 10]. Stronger adhesion may increase the hardness and reduce the toughness of a liner. To accomplish this, the matrix usually has a relatively high viscosity, but this reduced fluidity may increase the preparation difficulty.
- How does a plasticizer affect a propellant slurry?
- The presence of a plasticizer can also alter the propellant's properties, particularly the slurry's behaviour . Plasticizer is a chemical used to increase the mobility of polymer chains while decreasing intramolecular collisions , .
- Does plasticizer migration affect the safety of propellants?
- Provided by the Springer Nature SharedIt content-sharing initiative The migration of excess plasticizer seriously affects the safety of propellants. In this paper, GO was functionalized with isocyanate groups (TGO) to impro
- How can a plasticizer improve the performance of a propellant?
- Improving the performance of the adhesive system in a propellant by introducing a plasticizer is an effective approach to increasing the energy and toughness of the propellant.
- 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.
- What is a high-strength solid propellant adhesive system?
- Herein, a novel high-strength solid propellant adhesive system was proposed with GAP-ETPEs as the adhesive skeleton, butyl nitrate ethyl nitramine (Bu-NENA) as the energetic plasticizer, and nitrocellulose (NC) as the reinforcing agent. The effects of the structural factors on its properties were studied.
