In order to accurately characterize the curing characteristics of the thermosetting bonded explosive(PBX) at the later curing stage,the curing endpoint time of the PBX was determined.The force-displacement curves of PBX at different curing time were obtained by mechanical testing machine,and the 50N loading force was determined as its maximum load.The results shown that when the diameter of the curing test head was 10mm and the loading rate was 1mm/min,the force-displacement curve obtained by the test was relatively straight,the structure of the sample after the test was perfect,and the next test can be carried out.The deviation of curing characteristic data obtained by force-displacement testing method was much smaller than that by durometer method,which can be used as an accurate testing for curing characteristic of PBX.
Chen Chunyan, Nan Hai, Yu Ran, Zheng Yafeng, Sun Peipei
. Testing method of curing characteristics of thermosetting bonded explosive[J]. New Chemical Materials, 2021
, 49(2)
: 165
-167
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.02.038
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