Results 51 to 60 of about 12,705 (201)
Purification and Properties of Polyvinyl Nitrate and Its Compatibility With Solid Oxidizers
ABSTRACT Polyvinyl nitrate (PVN) is a nitrate‐ester energetic binder that can be produced directly from polyvinyl alcohol—a cheap commodity feedstock—thereby offering potential cost and supply‐chain advantages over binders based on nitrocellulose and other specialty polymers.
Stephen Spice +3 more
wiley +1 more source
ABSTRACT Hydrogen chlorine (HCl) is an important combustion intermediate during plastic (municipal waste) and composite propellant (aerospace) combustion, but the understanding of its high‐temperature chemistry is still evolving. In this study, the pyrolysis of 0.5% HCl in Ar was investigated behind reflected shock waves in a shock tube at temperatures
Claire M. Grégoire +2 more
wiley +1 more source
Macro-microscopic study on the damage threshold strain of particle-filled polymer composites
During the loading process, particle-filled polymer composites will soften due to damage to their internal microstructure, resulting in a decrease in stiffness, toughness, and strength.
Wang Jiaxiang +4 more
doaj +1 more source
ABSTRACT Controllable energy release in solid propellants has always been a challenging technology, and extensive efforts have been devoted to the synthesis and application of catalysts to achieve its controllable release. In this study, tannic acid (TA) and its complexes (TA‐Cu) were introduced into boron@ammonium perchlorate (B@AP) composites using ...
Yong Kou +12 more
wiley +1 more source
This study presents an alternative method to manufacture polymer‐bonded explosives by partially curing an HTPB‐based molding powder prior to compaction. The study shows that the length of partial cure time before compaction directly influenced the geometric fidelity, homogeneity, compressive strength, density, and internal microstructure.
Ismar L. Chew +4 more
wiley +1 more source
This work investigates the interaction of two isocyanurate‐based bonding agents with ammonium dinitramide: triallyl isocyanurate and 1,3,5‐tris(2‐hydroxyethyl) isocyanurate, which contain alkene and hydroxyl functional groups in their side chains, respectively.
Jessica O. Silva +5 more
wiley +1 more source
Prediction of Propellant Electrostatic Sensitivity Based on Small-Sample Machine Learning Models
Hydroxyl-terminated-polybutadiene (HTPB)-based composite solid propellants are extensively used in aerospace and defense applications due to their high energy density, thermal stability, and processability.
Fei Wang +6 more
doaj +1 more source
ABSTRACT To address the issues of aluminum (Al) powder agglomeration during combustion and low oxidizer decomposition efficiency in composite solid propellants, this study utilized in situ self‐assembly technology to prepare cobalt‐based hybrid‐coated modified Al powder (Al@CZ).
Chong Chen +11 more
wiley +1 more source
Suggestion for a unified performance assessment criterion of spacecraft propellants [PDF]
Propellant performance is usually assessed through the comparison of either the specific impulse Isp or the specific impulse density Isp,d of different propellants.
Riccius, Jörg, Bouajila, W.
core
Preliminary Characterization of Propellants Based on p(GA/BAMO) and pAMMO Binders
S.427-435In previous papers, the synthesis and characterization of OH-terminated glycidyl azide-r-(3,3-bis(azidomethyl)oxetane) copolymers (GA/BAMO) and poly-3-azidomethyl-3-methyl oxetane (pAMMO) by azidation of their respective polymeric substrates ...
Polacco, G. +3 more
core +1 more source

