Making Progress Towards »Green« Propellants – Part II,Propellants, Explosives, Pyrotechnics

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Making Progress Towards »Green« Propellants – Part II
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2020-05-26 , DOI: 10.1002/prep.202000059
Alain Dejeaifve ₁ , Alexandre Sarbach ₂ , Bertrand Roduit ₃ , Patrick Folly ₂ , Rowan Dobson ₁

Affiliation

Nitrate‐ester based propellants require stabilisers in order to maintain good chemical stability and to prevent oxidation, chain scission, energy loss and uncontrolled heat generation that are caused by homolytic and heterolytic cleavage of the weakest nitrogen‐oxygen bond of the nitrate ester functional group. With REACH legislation (1907/2006), industry in Europe has made progress in using less toxic compounds, that are often more environmentally‐friendly. This work aims to go beyond REACH and to anticipate the inclusion of other molecules that produce non‐ or less toxic daughter products and that can fulfil their role in the propellant's formulation. This paper is the follow‐up to a first paper, presenting six families of “green” stabilisers, which are novel, environmentally friendly, efficient and readily available for use in nitrocellulose‐based compositions. In this article we present the validated lower temperature shelf life predictions for propellants containing the new stabilisers, using heat flow calorimetry (HFC). It will be necessary to modify AOP48 in the near future to be able to include these new stabilisers that provide much better performances than conventional ones (longer shelf lives of propellants) and are also respectful of the environment and human health.

中文翻译：

向“绿色”推进剂迈进-第二部分

硝酸酯基推进剂需要稳定剂，以保持良好的化学稳定性并防止由于硝酸酯官能团最弱的氮-氧键的均裂和杂合裂解而引起的氧化，断链，能量损失和不受控制的发热。通过REACH法规（1907/2006），欧洲工业在使用毒性较小的化合物方面取得了进步，这些化合物通常更环保。这项工作的目标是超越REACH，并预期包含产生无毒或毒性较小的子产物并可以在推进剂配方中发挥作用的其他分子。本文是第一篇论文的后续，介绍了六个系列的“绿色”稳定剂，它们是新颖，环保，高效且易于用于硝化纤维素基组合物中。在本文中，我们使用热流量热法（HFC）提出了含有新稳定剂的推进剂的经过验证的低温货架寿命预测。在不久的将来，有必要对AOP48进行修改，使其能够包含这些新型稳定剂，这些稳定剂的性能要比传统稳定剂好（推进剂的保质期更长），并且还要尊重环境和人类健康。

更新日期：2020-05-26

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