Influence of Different Polymeric Matrices on the Properties of Pentaerythritol Tetranitrate

Elbeih, Ahmed; Abdelhafiz, Mahmoud; Hussein, Ahmed K.

doi:10.14429/dsj.71.16132

Cited by 3 publications

(3 citation statements)

References 32 publications

(34 reference statements)

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“…Compared with spherical MF, the plank-like TA and PDA tiled on the PETN surface have lower deformation, and thus, the desensitivity effects are lower. Compared with PETN-based PBX, 34 the desensitivity effect of in situ coating is better when the content of the shell is the same. Compared with pure PETN, the explosion points of PETN@TA, PETN@PDA, and PETN@MF increase from 227 to 236, 237, and 233 °C, respectively, illustrating that the thermal hazards of PETN can be declined by TA, PDA, and MF shells.…”

Section: ■ Introductionmentioning

confidence: 99%

Establishing the Interface Layer on the Pentaerythritol Tetranitrate Surface via In Situ Reaction

et al. 2022

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Pentaerythritol tetranitrate (PETN) was coated by tannic acid (TA), polydopamine (PDA), and melamine-formaldehyde (MF) resins via in situ reaction to prepare PETN@TA, PETN@PDA, and PETN@MF microcapsules for reducing sensitivity and enhancing thermal stability of PETN. The coating effects of TA, PDA, and MF shells on PETN surfaces are characterized by scanning electron microscopy and atomic force microscopy. The structures of PETN@TA, PETN@PDA, and PETN@MF microcapsules are characterized by X-ray photoelectron spectroscopy, X-ray diffraction, and Fourier-transform infrared spectra. The performances of PETN@TA, PETN@PDA, and PETN@MF microcapsules are characterized by differential scanning calorimetry, accelerating rate calorimetry, explosion point, vacuum deflation volume, and mechanical sensitivity. The study results show that TA, PDA, and MF shells can coat the PETN surface well. Compared with pure PETN, the explosion point has an increase while the vacuum deflation volume and mechanical sensitivity have a decrease for PETN@TA, PETN@PDA, and PETN@MF microcapsules, illustrating that the safeties of PETN@TA, PETN@PDA, and PETN@MF microcapsules are enhanced. In addition, the initial decomposition temperature (T 0 ) and peak decomposition temperature (T p ) of PETN@TA, PETN@PDA, and PETN@ MF microcapsules have a slight increase, demonstrating that the thermal stabilities of PETN@TA, PETN@PDA, and PETN@MF microcapsules are better than that of pure PETN. The obtained method can provide some guidance for the desensitizing of other energetic materials with high sensitivities.

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Section: ■ Introductionmentioning

confidence: 99%

Establishing the Interface Layer on the Pentaerythritol Tetranitrate Surface via In Situ Reaction

et al. 2022

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“…Low sensitivity helps DNAN to be investigated to take the place of TNT in PAX-21 composition [1]. The performance of several interesting advanced high explosives has been published but the high sensitivity is a main problem in their applications [2][3][4]. Also, several compositions were studied based on low sensitive explosives [5][6][7] and other based on energetic binders [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity and Performance of Dinitroanisole (DNAN) in comparison with TNT

Hussein

Elbeih

Abdelhafiz

et al. 2022

J. Phys.: Conf. Ser.

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The constant search for protection the soldier during training and participation in hostilities led us to aspire to develop types of energetic materials of a special nature that qualify them to reach the maximum levels of safety during handling, transportation and uses. In this work, we focus on one of these compounds, which is the main component of the preparation of low sensitive compositions. DNAN is an explosive with low sensitivity. Preparation of DNAN in laboratory scale was performed; explosive characterization was presented. Impact and friction sensitivities of DNAN, heat of combustion and detonation velocity were specified. TGA and DSC were used to investigate the DNAN thermal behavior under specific conditions. It was concluded that sensitivity of DNAN is lower than TNT and the chosen cyclic nitramines. The detonation properties of DNAN are slightly lower than TNT however DNAN is candidate individually or with other explosives to replace TNT in low sensitive compositions to full fill the safety and security manipulation of ammunitions.

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“…In addition, the selection of polymer matrix to form a flexible sheet explosive is a target for most of the scientists working in the energetic materials field [11][12][13]. The destructive effect of the sheet explosive is depends mainly on the power and the detonation properties of the high energy filler [14][15][16][17]. Several commercial plastic bonded explosives are available with known characteristics for the applications in different fields [18].…”

Section: Introductionmentioning

confidence: 99%

High Performance Sheet of PBX based on NTO

Elbeih

Elnogomy²,

Elshenawy³

et al. 2022

J. Phys.: Conf. Ser.

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3-nitro-1,2,4-triazol-5-one (NTO) is a low sensitive high explosive which has been used in the formation of low sensitive ammunitions. In this study, the preparation method of NTO explosive was discussed. A sheet of PBX on the basis of NTO bonded by HTPB binder matrix was prepared (NTO-PBX). The formulation is investigated for explosive properties to understand the influence of NTO on the performance of the PBX sheet. Impact and friction sensitivities of NTO-PBX, heat of Combustion and Detonation velocity were specified. EXPLO5 code, version 5.04, was utilized to calculate the theoretical detonation characteristics of NTO-PBX. For comparison, Data-sheetC, EPX-1, Semtex 1A and Formex P1, were also studied. By comparing the obtained results, confirmation of some relationships was investigated. The detonation velocity of the NTO sheet explosive was the highest of all the studied samples. The experimental and calculated results of NTO-PBX and the other compositions are in a good agreement.

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Influence of Different Polymeric Matrices on the Properties of Pentaerythritol Tetranitrate

Cited by 3 publications

References 32 publications

Establishing the Interface Layer on the Pentaerythritol Tetranitrate Surface via In Situ Reaction

Establishing the Interface Layer on the Pentaerythritol Tetranitrate Surface via In Situ Reaction

Sensitivity and Performance of Dinitroanisole (DNAN) in comparison with TNT

High Performance Sheet of PBX based on NTO

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