氟橡胶质量分数对 nAl@氟橡胶活性材料点火燃烧特性的影响研究

Translated title of the contribution: Effect of Fluororubber Mass Ratio on Ignition and Combustion Characteristics of nAl@Fluororubber Reactive Materials

Hengheng Geng, Rui Liu*, Pengwan Chen, Hui Ren, Chao Ge, Haifu Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In order to study the effect of fluororubber mass fraction on ignition and combustion performance of nAl@fluororubber reactive material, nAl@fluororubber reactive material with different mass fractions of fluororubber was designed and prepared in this paper. The combustion characteristics and dynamic ignition behavior of the material were studied by constant volume combustion tests, self-propagating combustion tests and dynamic loading ignition tests. The influence of the mass fraction of fluororubber on the maximum pressure, pressurization rate and burning speed during combustion was analyzed. The dynamic ignition threshold for nAl@fluororubber reactive material was obtained, and the dynamic ignition mechanism of nAl@fluororubber reactive material was revealed. The results show that the combustion pressure peak increased about 27 times, and the pressurization rate increased about 832 times, with the increase of fluororubber mass fraction from 10% to 25%. While the fluororubber mass fraction was less than 15%, the material couldn’t self-propagate and burn. Compared to nAl@15%fluororubber reactive material, the burning speed of nAl@25%fluororubber reactive material increased by 5.6 times. The combustion performance was improved due to the high mass fraction of fluororubber and excellent interface contact for materials. In addition, the dynamic loading ignition results showed that ignition threshold of nAl@fluororubber reactive material decreased by 37.5%, with the mass fraction of fluororubber increasing from 20% to 25%. nAl@25%fluororubber reactive material was ignited, when the absorption energy was 8 J.

Translated title of the contributionEffect of Fluororubber Mass Ratio on Ignition and Combustion Characteristics of nAl@Fluororubber Reactive Materials
Original languageChinese (Traditional)
Pages (from-to)1078-1085
Number of pages8
JournalBeijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume43
Issue number10
DOIs
Publication statusPublished - Oct 2023

Fingerprint

Dive into the research topics of 'Effect of Fluororubber Mass Ratio on Ignition and Combustion Characteristics of nAl@Fluororubber Reactive Materials'. Together they form a unique fingerprint.

Cite this