当前位置：
X-MOL 学术
›
Propellants Explos. Pyrotech.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
The Role of Pentaerythritol Tetranitrate (PETN) Aging in Determining Detonator Firing Characteristics
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2020-10-21 , DOI: 10.1002/prep.202000181 Nicholas Lease 1 , Nathan J. Burnside 2 , Geoff W. Brown 1 , Joseph P. Lichthardt 1 , Maria C. Campbell 1 , Reid T. Buckley 1 , John F. Kramer 1 , Kristina M. Parrack 1 , Spencer P. Anthony 1 , Hongzhao Tian 1 , Sky K. Sjue 3 , Daniel N. Preston 4 , Virginia W. Manner 1
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2020-10-21 , DOI: 10.1002/prep.202000181 Nicholas Lease 1 , Nathan J. Burnside 2 , Geoff W. Brown 1 , Joseph P. Lichthardt 1 , Maria C. Campbell 1 , Reid T. Buckley 1 , John F. Kramer 1 , Kristina M. Parrack 1 , Spencer P. Anthony 1 , Hongzhao Tian 1 , Sky K. Sjue 3 , Daniel N. Preston 4 , Virginia W. Manner 1
Affiliation
|
Pentaerythritol tetranitrate (PETN) is one of the most commonly used explosives for both military and mining applications. PETN is used in EBW (exploding bridge wire) and EFI (exploding foil initiator) detonator devices. Due the widespread usage of PETN, studies focusing on how the explosive changes with age, primarily its function in detonators has received particular interest. Aging studies have identified several factors that affect PETN detonator function over time, most notably the specific surface area of the explosive powder. Though small‐scale studies have been performed on specific detonator systems with isolated batches of material, what is missing is a large statistically‐significant study focusing on PETN aging characteristics – such as powder coarsening – and their influence on detonator performance. Herein we report the first large statistically viable PETN aging study focusing on four batches of PETN powder from the same stock of PETN using two stabilizers, polysaccharide and TriPEON. PETN was aged both as a free‐flowing powder as well as in modified EBW RP‐2 detonators, for one month at 75 °C. The PETN powder has been analyzed chemically using Fisher specific surface area analysis, SEM imaging and light scattering particle size analysis. Additionally the detonators were tested for performance through voltage‐sweep threshold testing and function time measurements. Findings from the study indicate that aging at 75 °C for one month significantly changes the specific surface area and particle size of unstabilized PETN, leading to increases in detonator function time, but not detonator threshold values. Powders stabilized with TriPEON displayed less significant increases in function time, while powder stabilized with polysaccharide exhibited no aging effects, despite the high temperature aging.
中文翻译：
四丙烯酸季戊四醇酯（PETN）老化在确定雷管发射特性中的作用
季戊四醇四硝酸酯（PETN）是军事和采矿应用中最常用的炸药之一。PETN用于EBW（爆炸桥丝）和EFI（爆炸箔引发器）雷管设备。由于PETN的广泛使用，人们对炸药如何随年龄变化，主要是其在雷管中的功能的研究引起了特别的兴趣。老化研究已经确定了随时间影响PETN雷管功能的几个因素，其中最引人注目的是炸药粉末的比表面积。尽管已经对特定的雷管系统进行了小规模的研究，这些系统使用了单独的物料批次，但缺少的是一项具有统计学意义的大型研究，重点是PETN时效特性（例如粉末粗化）及其对雷管性能的影响。在这里，我们报告了第一个在统计上可行的PETN老化的大型研究，该研究集中于使用两种稳定剂，多糖和TriPEON从同一份PETN原料中提取四批PETN粉末。PETN在自由流动的粉末中以及在改良的EBW RP-2雷管中均在75°C下老化了一个月。已使用Fisher比表面积分析，SEM成像和光散射粒度分析对PETN粉末进行了化学分析。此外，还通过扫频阈值测试和功能时间测量对雷管的性能进行了测试。该研究的发现表明，在75°C下老化一个月会显着改变未稳定PETN的比表面积和粒径，从而导致雷管功能时间增加，但雷管阈值不会增加。
更新日期：2020-10-21
中文翻译：
四丙烯酸季戊四醇酯（PETN）老化在确定雷管发射特性中的作用
季戊四醇四硝酸酯（PETN）是军事和采矿应用中最常用的炸药之一。PETN用于EBW（爆炸桥丝）和EFI（爆炸箔引发器）雷管设备。由于PETN的广泛使用，人们对炸药如何随年龄变化，主要是其在雷管中的功能的研究引起了特别的兴趣。老化研究已经确定了随时间影响PETN雷管功能的几个因素，其中最引人注目的是炸药粉末的比表面积。尽管已经对特定的雷管系统进行了小规模的研究，这些系统使用了单独的物料批次，但缺少的是一项具有统计学意义的大型研究，重点是PETN时效特性（例如粉末粗化）及其对雷管性能的影响。在这里，我们报告了第一个在统计上可行的PETN老化的大型研究，该研究集中于使用两种稳定剂，多糖和TriPEON从同一份PETN原料中提取四批PETN粉末。PETN在自由流动的粉末中以及在改良的EBW RP-2雷管中均在75°C下老化了一个月。已使用Fisher比表面积分析，SEM成像和光散射粒度分析对PETN粉末进行了化学分析。此外，还通过扫频阈值测试和功能时间测量对雷管的性能进行了测试。该研究的发现表明，在75°C下老化一个月会显着改变未稳定PETN的比表面积和粒径，从而导致雷管功能时间增加，但雷管阈值不会增加。
京公网安备 11010802027423号