Results 1 to 10 of about 1,292 (179)

Synthesis and Properties of Star-Shaped Hydroxyl-Terminated Polybutadiene via RAFT Polymerization: A Model for a Binder Prepolymer [PDF]

open access: yesACS Omega
Fundamental knowledge on how polymer architecture affects curing and material properties of solid rocket motors (SRMs) using hydroxyl-terminated poly-(butadiene) (HTPB) as a prepolymer has historically been based on studies employing impure samples. Herein, we present the synthesis of highly controlled HTPB via reversible addition-fragmentation chain ...
Wesley S. Farrell   +3 more
doaj   +5 more sources

Traditional vs. Energetic and Perchlorate vs. “Green”: A Comparative Study of the Choice of Binders and Oxidising Agents [PDF]

open access: yesMolecules, 2023
The aim of this article is to compare rocket propellants containing a traditional binder (hydroxyl-terminated polybutadiene) and an energetic binder (glycidyl azide polymer), as well as a perchlorate oxidising agent and a “green” one, i.e., ammonium ...
Kinga Lysien   +5 more
doaj   +2 more sources

Burning Characteristics of Ammonium-Nitrate-Based Composite Propellants with a Hydroxyl-Terminated Polybutadiene/Polytetrahydrofuran Blend Binder [PDF]

open access: yesInternational Journal of Aerospace Engineering, 2012
Ammonium-nitrate-(AN-) based composite propellants prepared with a hydroxyl-terminated polybutadiene (HTPB)/polytetrahydrofuran (PTHF) blend binder have unique thermal decomposition characteristics.
Makoto Kohga   +2 more
doaj   +2 more sources

Biodegradability of Binder System Waste from Hydroxyl-Terminated Polybutadiene Propellant and Pretreatment for Biodegradation. [PDF]

open access: yesPolymers (Basel)
Large amounts of binder system waste are produced upon the recovery of energetic components in scrapped hydroxyl-terminated polybutadiene (HTPB) propellant. This study investigated the biodegradability of the binder system waste using a microbial enrichment solution as the biodegradation medium.
Wu K, Chai T, Hu F, Ding Z, Wang C.
europepmc   +2 more sources

Performance and Kinetics Study of Self-Repairing Hydroxyl-Terminated Polybutadiene Binders Based on the Diels–Alder Reaction [PDF]

open access: yesPolymers, 2017
Based on the Diels–Alder reaction and hydroxyl-terminated polybutadiene (HTPB) binders of solid propellants, two novel compounds—furfuryl-terminated polybutadiene (FTPB) and trifurfuryl propane (TFP)—were designed and synthesized, and their structures were characterized.
Min Xia, Guoping Li, Yunjun Luo
exaly   +3 more sources

An Overview of the Technological Progress in Propellants Using Hydroxyl-Terminated Polybutadiene as Binder During 2002–2012

open access: yesJournal of Aerospace Technology and Management, 2013
http://dx.doi.org/10.5028/jatm.v5i3.242 The purpose of this article is to present a study on the technological development of propellants, which are used in solid and hybrid rocket motor, that have been employing hydroxyl-terminated polybutadiene (HTPB)
Gilson da Silva   +2 more
doaj   +5 more sources

Kinetic Research on the Curing Reaction of Hydroxyl-Terminated Polybutadiene Based Polyurethane Binder System via FT-IR Measurements [PDF]

open access: yesCoatings, 2018
Polyurethane binder systems based on hydroxyl-terminated polybutadiene (HTPB) possess several superior properties such as superior adhesion, high solid-loading capacity, outstanding mechanical performance, etc. They have been widely used in coatings and adhesives as well as in medical and military industries.
Jiahu Guo, Tao Chai, Jianlan Cui
exaly   +2 more sources

Effects of Gamma Irradiation on Solid Propellant Conventional and UV-Cured Binders [PDF]

open access: yesAerospace
Ionizing radiations are responsible for bond scission, radical formation, and oxidative degradation of polymer matrices. This study focuses on the effects of gamma irradiation on solid propellant binders, targeting a comprehensive chemical and mechanical
Stefania Carlotti   +9 more
doaj   +3 more sources

Comparative Assessment of Stabilised Polybutadiene Binder under Accelerated Ageing

open access: yesJournal of Aerospace Technology and Management, 2016
Polybutadiene elastomers are versatile materials, being employed at several applications from rocket propellant binder to adhesives and sealants. The elastomers derived from hydroxyl-terminated polybutadiene are usually stabilised with antioxidants to ...
Luiz Felipe Cannaval Sbegue   +1 more
doaj   +3 more sources

Evolution of structural damage of solid composite propellants under slow heating and effect on combustion characteristics

open access: yesJournal of Materials Research and Technology, 2023
Composite propellants are used to fabricate solid motors for space vehicles. The fundamental factor that affects motor safety is the structural damage in the propellant owing to slow heating in an abnormal storage or service environment.
Jianxin Nie   +8 more
doaj   +1 more source

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