Synthesis and characterization of novel energetic thermoplastic elastomers based on glycidyl azide polymer (GAP) with bonding functions

Zhang, Zaijuan; Wang, Gang; Wang, Zhen; Zhang, Yilu; Zhang, Ge; Luo, Yunjun

doi:10.1007/s00289-015-1375-7

Cited by 39 publications

(36 citation statements)

References 17 publications

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“…There are a lot of polymers with special structures and excellent performance, such as hydroxyl-terminated polybutadiene (HTPB), hydroxyl terminated polyether (HTPE), polyethylene glycol (PEG) and so on [1][2][3][4][5][6]. In recent years, a new trend has been the replacement of these inert binders by energetic binders such as glycidyl azide polymer (GAP) [7][8][9][10][11] and poly[(3nitratomethyl)-3-methyloxetane] (polyNIMMO) [12][13][14][15][16][17][18], in order to develop advanced rocket propellants and polymer-bonded explosives (PBX). PolyNIMMO is an energetic polymer with high energy output and good compatibility with highly energetic oxidizers.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Curing of Allyl Urethane NIMMO-THF Copolyether with Three Functional Groups as a Potential Energetic Binder

Wang¹,

Li²,

Lu³

et al. 2020

Cent. Eur. J. Energ. Mater.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Curing of Allyl Urethane NIMMO-THF Copolyether with Three Functional Groups as a Potential Energetic Binder

Wang¹,

Li²,

Lu³

et al. 2020

Cent. Eur. J. Energ. Mater.

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“…Glycidyl azide polymer (GAP) is an energetic binder used to produce propellants with performance higher than HTPB based traditional CSRP . GAP polymeric matrix, containing highly energetic azide group (C‐N3 group), could be combined with energetic oxidizer such as ammonium dinitramide (ADN) to produce a propellant with high performance, high thermal stability and chlorine‐free exhaust . The GAP binder has several advantages; it has high heat of formation (+117.2 kJ · mol –1 ) compatible with several oxidizers and highly exothermic decomposition due to the energy produced during the decomposition of the azide group .…”

Section: Introductionmentioning

confidence: 99%

Improving the Mechanical Properties of Glycidyl Azide Polymeric Matrix Used in Composite Solid Rocket Propellant by Adding Advanced Cross‐Linker

Boshra

Elbeih

Mostafa

2019

Zeitschrift anorg allge chemie

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Glycidyl azide polymer (GAP) based binders have poor mechanical characteristics in comparison with hydroxyl terminated polybutadiene (HTPB) binders. In this study, advanced cross-linker was used to improve the mechanical properties of GAP binder. GAP was prepared and characterized in comparison with HTPB prepolymer. Density, characteristics groups, nitrogen content, humidity, viscosity, and milligram equivalent of (OH) per binders were determined. A cross-linker consists of trimethylol propane (TMP) and curing catalyst, dibutyltin dilaurate (DBTDL), was used as an additive to GAP polymeric matrix to enhance its functionality. Polymeric matrices based on GAP and HTPB were prepared with different curing ratio (NCO/OH) ranging from 0.7 to 1.5. Different weight percentages of cross-linker * Dr. A. Elbeih

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“…Glycidyl azide polymer based energetic thermoplastic elastomer (GAP‐ETPE) has a segmented structure which consists of hard segments formed by a diisocyanate with a chain extender and soft segments formed by long polymeric chains of the glycidyl azide polymer glycol. Since GAP‐ETPE was synthesized with GAP and isophorone diisocyanate, researchers have done considerable work on polymer glycol, the isocyanate and the chain extender to modify the GAP‐ETPE. Recently, it has been used as a kind of binder in composite solid propellant and gun propellants as a result of the easy processing and environmental characteristics .…”

Section: Introductionmentioning

confidence: 99%

“…Since GAP‐ETPE was synthesized with GAP and isophorone diisocyanate, researchers have done considerable work on polymer glycol, the isocyanate and the chain extender to modify the GAP‐ETPE. Recently, it has been used as a kind of binder in composite solid propellant and gun propellants as a result of the easy processing and environmental characteristics . In ETPE, the hard segments provide mechanical strength, while the soft segments provide flexibility and energy.…”

Section: Introductionmentioning

confidence: 99%

Effect of nitrocellulose (NC) on morphology, rheological and mechanical properties of glycidyl azide polymer based energetic thermoplastic elastomer/NC blends

et al. 2017

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As a new kind of propellant binder, energetic thermoplastic elastomer (ETPE) can improve propellant recyclability and environmentally friendly disposal. The rheological behavior of the ETPE binder can be beneficial to identify suitable and safe conditions for processing ETPE propellants. In this paper, ETPE/nitrocellulose (NC) blends with different mass ratios of NC to ETPE were prepared by the physical mixing method. The heat of explosion and the morphological, thermal, mechanical and rheological properties of the resulting blends were studied systematically. It was found that the heat of explosion of ETPE/NC blends increased with increasing NC content. SEM images showed that the NC domains in the blends changed from tiny pieces to fibers with increasing NC mass ratio, which indicates phase separation in the blends. The tensile mechanical properties of the blends had a peak value when the NC content was 10 wt%, and then increased with the increasing addition of NC. The thermal behavior made clear that the ETPE and NC were partially miscible. Rheological studies on dynamic strain sweep and frequency sweep demonstrated that the content of NC in the blends had a monotonic effect on their rheological properties at 130 ∘ C. Rheological studies also showed that the rheology of the blends is dependent on temperature. The Cole − Cole and Han plots confirmed phase separation in the blends.

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Synthesis and characterization of novel energetic thermoplastic elastomers based on glycidyl azide polymer (GAP) with bonding functions

Cited by 39 publications

References 17 publications

Synthesis and Curing of Allyl Urethane NIMMO-THF Copolyether with Three Functional Groups as a Potential Energetic Binder

Synthesis and Curing of Allyl Urethane NIMMO-THF Copolyether with Three Functional Groups as a Potential Energetic Binder

Improving the Mechanical Properties of Glycidyl Azide Polymeric Matrix Used in Composite Solid Rocket Propellant by Adding Advanced Cross‐Linker

Effect of nitrocellulose (NC) on morphology, rheological and mechanical properties of glycidyl azide polymer based energetic thermoplastic elastomer/NC blends

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