Ammonium perchlorate composite propellant - Wikipedia
Ammonium perchlorate composite propellant (APCP) is a solid rocket propellant. It differs from many traditional solid rocket propellants such as black powder or zinc-sulfur, not only in chemical composition and overall performance but also by being cast into shape, as opposed to powder pressing as with black powder. This provides manufacturing ...
Solid propellants: AP/HTPB composite propellants
Dec 1, 2019 · Ammonium perchlorate (AP)-based composite propellants have been a workhorse in the field of solid rocket propulsion for more than five decades. This type of propellant typically contains a multi-modal distribution of AP (NH 4 ClO 4) grains (∼20 to 200 mm) embedded in the hydroxyl-terminated polybutadiene (HTPB) matrix. The physiochemical ...
Richard Nakka's Experimental Rocketry Site
20-21 Detailed information on making PBAN-based AP composite propellant may be found in Terry McCreary's book Experimental Composite Propellant. The oxidizer is ammonium perchlorate (AP), the resin is PBAN (polybutadiene), and the curative is epoxy.
Composite propellants, based on ammonium perchlorate (AP) without aluminum, generate reduced smoke, HCl and H 2O vapor will precipitate into droplets in the plume under given temperature and humidity conditions. They are used for various tactical missiles. With aluminum, they are widely used in missiles and space launchers.
Review and assessment of the ammonium perchlorate chemistry …
Jan 1, 2025 · AP/HTPB (ammonium perchlorate/hydroxyl-terminated polybutadiene) is a composite propellant used in aerospace propulsion applications, such as solid propellants for rockets. Both fuel and oxidizer are mixed together homogeneously, where AP serves as the oxidizer and HTPB plays the roles of both binder and fuel [ 1 ].
composite propellant systems in current use con-sists of ammonium perchlorate, NH 4ClO4, as the oxidizer and usually a copolymer or terpolymer of butadiene with other monomers such as acrylic acid or acrylonitrile as the binder. This article will examine the design and construction of composite propellant rocket motors using
Additive manufacturing of ammonium perchlorate composite propellant ...
Jan 1, 2019 · Given the printer's ability to print low-void, stably burning solid propellant with a solids loading of 85 wt% and a viscosity of 69 million cP, the presented printing method is a valuable emergent technology that can be used to explore new limits of …
Various methods were implemented to incorporate titania nanoparticles into three representative ammonium perchlorate composite propellants (APCP), and the mechanical properties of each formulation were tested and compared to those of an analogous baseline.
Solid-propellant rocket - Wikipedia
Ammonium nitrate composite propellant often uses magnesium and/or aluminium as fuel and delivers medium performance (I sp of about 210 s (2.1 km/s)) whereas ammonium perchlorate composite propellant often uses aluminium fuel and delivers high performance: vacuum I sp up to 296 s (2.90 km/s) with a single-piece nozzle or 304 s (2.98 km/s) with a ...
Effects of Ammonium Perchlorate Particle Size, Ratio, and …
Jul 16, 2020 · In this study, ammonium perchlorates (APs) with two or more different particle sizes were mixed to optimize the viscosity of the propellant slurry and the burn rate of the resulting solid composite propellants at various mixing ratios.