Results 21 to 30 of about 967 (177)

The catalysis effects of acetylacetone complexes on polymer matrix of HTPB-based fuels

open access: yesFirePhysChem, 2021
The slow regression rate caused by the difficulty of pyrolysis can not meet the practical application requirements of hydroxyl-terminated polybutadiene (HTPB)-based fuels in hybrid rocket propulsion.
Hongsheng Yu   +5 more
doaj   +1 more source

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

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   +1 more source

Microbial degradation and community structure analysis of hydroxyl-terminated polybutadiene (HTPB)

open access: yesAMB Express, 2021
Hydroxyl-terminated polybutadiene (HTPB) is a curing adhesive that is commonly used in the production of ammunition, and it emerged during the time of war.
Ying Zhang   +3 more
doaj   +1 more source

Effect of hyperbranched polyesters on HTPB polyurethane curing kinetic [PDF]

open access: yesMaterials Research, 2013
Effects of hyperbranched polyesters on kinetics of the reaction between hydroxyl-terminated polybutadiene (HTPB) and isophorone diisocyanate (IPDI) were investigated.
Xuejing Song, Luo Yunjun
doaj   +1 more source

Study of physico-chemical properties of raw materials for solid propellant

open access: yesАвіаційно-космічна техніка та технологія, 2022
In the study of the physicochemical properties of low molecular weight polybutadiene rubber with functional hydroxyl groups (Hydroxyl Terminated Poly Butadien – HTPB), which is a raw material for solid rocket fuel (SRP), an experimental batch of rubber ...
Viktor Muratov   +4 more
doaj   +1 more source

Mechanical properties of HTPB-IPDI-based elastomers

open access: yesJournal of Applied Polymer Science, 1997
A polyurethane elastomer having mechanical and adhesive properties suit- able for liner applications in solid rocket propellants was developed using HTPB as the prepolymer and IPDI as the curing agent. The effects of the NCO/OH ratio (R value) and the triol/diol ratio on the mechanical properties of the polyurethane matrix were investigated.
Haska, SB   +3 more
openaire   +2 more sources

Review of novel energetic polymers and binders – high energy propellant ingredients for the new space race

open access: yesDesigned Monomers and Polymers, 2019
Current solid rocket propellant formulations still employ traditional ingredients utilized since the 1960s, such as hydroxyl terminated polybutadiene (HTPB).
Tianze Cheng
doaj   +1 more source

A highly stretchable and self-healing hydroxy-terminated polybutadiene elastomer

open access: yesJournal of Saudi Chemical Society, 2020
The damage such as microcracks limits the application of hydroxy-terminated polybutadiene (HTPB) elastomer. Here, hydroxy-carboxy-terminated polybutadiene (HCTPB) and Fe3+ selected to facilitate ionic bonds (COO−⋯Fe3+) formation is proposed as a ...
Ke Chen   +4 more
doaj   +1 more source

Anisotropic Reaction Properties for Different HMX/HTPB Composites: A Theoretical Study of Shock Decomposition

open access: yesMolecules, 2022
Plastic-bonded explosives (PBXs) consisting of explosive grains and a polymer binder are commonly synthesized to improve mechanical properties and reduce sensitivity, but their intrinsic chemical behaviors while subjected to stress are not sufficiently ...
Zheng-Hua He   +4 more
doaj   +1 more source

Utilization of steric hindrance of alkyl lithium-based initiator to synthesize high 1,4 unit-containing hydroxyl- terminated polybutadiene [PDF]

open access: yesRoyal Society Open Science, 2018
A novel alkyl lithium-based initiator with relatively large steric hindrance, tert-butyldimethylsiloxydimethylpropyl lithium (TBDMSODPrLi), was designed and synthesized.
Xin Min, Xiaodong Fan, Jie Liu
doaj   +1 more source

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