scholarly journals The effect of hardness on polymer-bonded pentaerythritol tetranitrate (PETN) explosive impact sensitivity

2022 ◽  
Vol 131 (1) ◽  
pp. 015102
Author(s):  
Alexandra C. Burch ◽  
Lisa M. Kay ◽  
John D. Yeager ◽  
Geoff W. Brown ◽  
Bryce C. Tappan ◽  
...  
Keyword(s):  
Impact Sensitivity ◽  
Pentaerythritol Tetranitrate

scholarly journals Influence of Different Polymeric Matrices on the Properties of Pentaerythritol Tetranitrate

2021 ◽  
Vol 71 (2) ◽  
pp. 177-184
Author(s):  
Ahmed Elbeih ◽  
Mahmoud Abdelhafiz ◽  
Ahmed K. Hussein
Keyword(s):  
Impact Sensitivity ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Pentaerythritol Tetranitrate ◽  
Polymeric Matrices ◽  
Velocity Of Detonation ◽  
Polymer Bonded Explosives ◽  
Friction Sensitivity ◽  
Styrene Butadiene ◽  
The Impact

Six different polymeric matrices were fabricated to reduce the sensitivity of PETN (Pentaerythritol tetranitrate). The polymeric matrices used were individually based on Acrylonitrile butadiene rubber (NBR) softened by plasticizer, styrene-butadiene rubber (SBR) softened by oil, polymethyl methacrylate (PMMA) plasticised by dioctyl adipate (DOA), polydimethylsiloxane (PDMS), polyurethane matrix, and Fluorel binder. A computerised plastograph mixer was utilised for producing three polymer-bonded explosives (PETN-NBR, PETN-SBR, and PETN-PDMS) based on the non-aqueous method. A cast-cured method was used to prepare PBX based on polyurethane (PETN-HTPB), while the slurry technique was used to prepare beads of PETN coated by either fluorel binder (PETN-FL) or based on PMMA forming (PETN-PMMA). The heat of combustion and sensitivities were investigated. The velocity of detonation was measured, while the characteristics of the detonation wave were deduced theoretically by the EXPLO 5 (thermodynamic code). The ballistic mortar experiment was performed to determine the explosive strength. By comparing the results, it was found that PDMS has the highest influence on decreasing the impact sensitivity of PETN, while the cast cured PETN-HTPB has the lowest friction sensitivity. On the other side, PETN-FL has the highest detonation parameters with high impact sensitivity. Several relationships were verified and the matching between the measured results with the calculated ones was confirmed.

scholarly journals Sources of Variation in Drop-Weight Impact Sensitivity Testing of the Explosive Pentaerythritol Tetranitrate

2021 ◽  
Vol 60 (13) ◽  
pp. 5024-5033
Author(s):  
Frank W. Marrs ◽  
Virginia W. Manner ◽  
Alexandra C. Burch ◽  
John D. Yeager ◽  
Geoffrey W. Brown ◽  
...  
Keyword(s):  
Impact Sensitivity ◽  
Pentaerythritol Tetranitrate ◽  
Sensitivity Testing ◽  
Drop Weight ◽  
Sources Of Variation ◽  
Weight Impact

RDX/GAP-ETPE NANOCOMPOSITES FOR REMARKABLY REDUCED IMPACT SENSITIVITY

2016 ◽  
Vol 15 (3) ◽  
pp. 275-284
Author(s):  
Hequn Li ◽  
Chongwei An ◽  
Baoyun Ye ◽  
Wei Ji ◽  
Jingyu Wang
Keyword(s):  
Impact Sensitivity

Determination of Fragment Impact Sensitivity Prediction Methods

1983 ◽  
Author(s):  
Edmund Swider ◽  
Hyla Napadensky ◽  
Edward Hahn ◽  
Richard Rindner
Keyword(s):  
Impact Sensitivity ◽  
Prediction Methods

scholarly journals About the Azido Derivatives of Pentaerythritol Tetranitrate

2021 ◽  
Author(s):  
Tobias Lenz ◽  
Thomas M. Klapötke ◽  
Moritz Mühlemann ◽  
Jörg Stierstorfer
Keyword(s):  
Pentaerythritol Tetranitrate ◽  
Derivatives Of

Stability Studies on Pentaerythritol Tetranitrate

1992 ◽  
Vol 17 (6) ◽  
pp. 307-312 ◽  
Author(s):  
G. Om Reddy ◽  
A. Srinivasa Rao
Keyword(s):  
Pentaerythritol Tetranitrate ◽  
Stability Studies

scholarly journals Trace Detection of Pentaerythritol Tetranitrate Using Electrochemical Gas Sensors

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Praveen K. Sekhar ◽  
Jie Zhou ◽  
Hui Wang ◽  
Eric R. Hamblin
Keyword(s):  
Gas Sensors ◽  
Cost Effective ◽  
Pentaerythritol Tetranitrate ◽  
Screening System ◽  
Trace Detection ◽  
False Negatives ◽  
Quantitative Measurements ◽  
Front End ◽  
Effective Manner ◽  
Single Sensor

Selective and sensitive detection of trace amounts of pentaerythritol tetranitrate (PETN) is demonstrated. The screening system is based on a sampling/concentrator front end and electrochemical potentiometric gas sensor as the detector. A single sensor is operated in the dominant hydrocarbon (HC) and nitrogen oxides (NOx) mode by varying the sensor operating condition. The potentiometric sensor with integrated heaters was used to capture the signature of PETN. Quantitative measurements based on hydrocarbon and nitrogen oxide sensor responses indicated that the detector sensitivity scaled proportionally with the mass of the explosives (10 μg down to 200 ng). The ratio of the HC integrated peak area to the NOxintegrated peak area is identified as an indicator of selectivity. The HC/NOxratio is unique for PETN and has a range from 1.7 to 2.7. This detection technique has the potential to become an orthogonal technique to the existing explosive screening technologies for reducing the number of false positives/false negatives in a cost-effective manner.

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