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Citation
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HERO ID
3604917
Reference Type
Journal Article
Title
Release of 1,3,5-trinitroperhydro-1,3,5-triazine (RDX) from polymer-bonded explosives (PBXN-109) into water by artificial weathering
Author(s)
Kumar, M; Ladyman, MK; Mai, N; Temple, T; Coulon, F
Year
2017
Is Peer Reviewed?
Yes
Journal
Chemosphere
ISSN:
0045-6535
EISSN:
1879-1298
Volume
169
Page Numbers
604-608
Language
English
PMID
27907880
DOI
10.1016/j.chemosphere.2016.11.107
Abstract
Polymer-bonded explosives (PBX) fulfil the need for insensitive munitions. However, the environmental impacts of PBX are unclear, even though it is likely that PBX residues from low-order detonations and unexploded ordnance are deposited on military training ranges. The release of high explosives from the polymer matrix into the environment has not been studied in detail, although as polymers degrade slowly in the environment we anticipate high explosives to be released into the environment. In this study, PBXN-109 (nominally 64% RDX) samples were exposed to variable UK climatic conditions reproduced in the laboratory to determine the effects of temperature, UV irradiation and rainfall on the release of RDX from the polymer binder. The most extreme conditions for spring, summer and winter in the UK were artificially reproduced. We found that up to 0.03% of RDX was consistently released from PBXN-109. The rate of RDX release was highest in samples exposed to the summer simulation, which had the lowest rainfall, but the highest temperatures and longest UV exposure. This was confirmed by additional experiments simulating an extreme summer month with consistently high temperatures and long periods of sunlight. These results probably reflect the combination of polymer swelling and degradation when samples are exposed to higher temperatures and prolonged UV irradiation.
Keywords
Adipates/chemistry; Butadienes/chemistry; Elastomers/chemistry; Explosive Agents/chemistry; Polymers/chemistry; Temperature; Triazines/analysis; Water Pollutants, Chemical/analysis; Weather; 1,3,5-Trinitroperhydro-1,3,5-triazine (RDX); Artificial weathering; PBXN-109; Polymer-bonded explosives; Release; 2BD76YG9SI; 9003-17-2; W91SSV5831
Tags
IRIS
•
RDX (121-82-4)
Database Searches November 2017
Pubmed 11/17
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