Results 21 to 30 of about 2,333 (214)

Storage life prediction under pre-strained thermally-accelerated aging of HTPB coating using the change of crosslinking density

open access: yesDefence Technology, 2021
In order to predict the storage life of a certain type of HTPB (hydroyl-terminated polybutadiene) coating at 25 °C and analyze the influence of pre-strain on the storage life, the accelerated aging tests of HTPB coating at 40 °C, 50 °C, 60 °C, 70 °C with
Yong-qiang Du, Jian Zheng, Gui-bo Yu
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

Vegetable Oil-Based Materials for Drug Delivery Systems and Wound Dressings. [PDF]

open access: yesMacromol Biosci
Renewable resources like vegetable oils are increasingly explored for biomaterial production in biomedical applications. Their monoglycerides and triglycerides inherently possess functions or can be chemically modified to introduce functional groups suitable for polymerization, yielding biomaterials with desirable properties such as flexibility ...
Favre LM   +2 more
europepmc   +2 more sources

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

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

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

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

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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