Hydroxyl-terminated polybutadiene (HTPB) [6]

Hydroxyl-terminated polybutadiene (HTPB) [6]

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Article
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GAP and HTPB are polymers on which the copolymer obtained in our work is based. The following report indicates how to perform the polymerization reactions for these two polymers in order to obtain a copolymer that combines their individual positive physico-chemical properties. It demonstrates how the ratio of substrates and reaction conditions affe...

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Context 1
... analysis was performed for the GAP-HTPB-GAP copolymers obtained. A comparison of the spectra for samples with extreme nitrogen content, for A4P1 and A7P1, as well as for A4P2 and A7P2 copolymers, is presented in Figures 10 and 11, respectively. ...
Context 2
... copolymers were subject to thermo-gravimetric analysis. The analytical curves are shown in Figure 12. In each instance, two peaks indicating mass loss were observed, which correspond to exothermic reactions, at about 200 °C the azide groups from the GAP segment of the copolymer, and at approximately 350 °C the HTPB segment of the copolymer, respectively. ...

Citations

... Much work deals with the substitution of the hydroxyl-terminated polybutadiene (HTPB) binder and fuel with energetic polymers containing explosophoric groups, which can decompose without an oxidizer [5][6][7]. Many such compounds have been synthesized, but the most prominent are: -glycidyl azide polymer (GAP), -poly[(3-nitratomethyl)-3-methyloxetane] (polyNIMMO), -poly[3,3-bis(azidomethyl)oxetane] (polyBAMO), and -poly(glycidyl nitrate) (polyGLYN). ...
Article
Full-text available
Polish technology for the production of propellants uses methods which have been known for many years. The continuously developing market requires producers to enhance the parameters of their munitions in order to keep up with demands. Therefore, it is necessary to research and constantly implement new types of gun powders and rocket propellants. In the present work, highly energetic compounds were characterized as constituents of current propellants. Their advantages and disadvantages are described. The requirements for new materials, concerning toxicity, environmental impact, and safety are presented. It is shown that by using modern energetic compounds it is possible to obtain low-vulnerability or insensitive ammunitions. Finally, the situation in the Polish market is briefly described.
Article
This article aims to outline the current progress in the field of energetic copolymer binders for composite solid propellants (CSPs). Propellants, which are a type of energetic material, are used to generate thrust in rockets and missiles, and they are generally less sensitive than explosives. The common formulations of CSPs contain several different chemical compounds that are typically bound together by a polymeric matrix to form a continuous solid. The use of inert polymers, however, does not enhance the overall specific impulse of the propellant. Energetic copolymers have emerged as a compelling category of binders for CSPs in recent years, offering potential advantages over traditional binders such as improved performance, enhanced safety, and increased manufacturing efficiency. The paper reviews the various types of energetic copolymer binders that have been developed, their potential advantages and drawbacks, and the current challenges and opportunities in the field. It suggests directions for future research and development and aims to provide a useful resource for researchers and practitioners interested in the use of energetic copolymer binders toward CSPs. K E Y W O R D S composite solid propellants, copolymer, energetic binder, mechanical properties