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Proceedings Paper

Study on the application of high porosity materials in infrared smoke composition based on freeze-drying
Author(s): Siyan Chen; Chenguang Zhu; Yikai Wang; Chenguang Yan
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Paper Abstract

SiO2 aerogel has the characteristics of high porosity and high specific surface area. In order to explore the feasibility of using it as a new infrared functional additive for smoke composition, SiO2 aerogel was mixed with NaNO3 and NH4NO3 saturated solution respectively, and freeze-drying was introduced to make NaNO3 and NH4NO3 deposit in the pores or surface of SiO2 aerogel. So the powder-form infrared functional additive was prepared completely. The new powder not only reduces the frequency of the phenomenon of harden synthesized compound and improves its preparation process, but also guarantees the recovery of prefabricated particle size of SiO2 aerogel in the combustion process. The experimental results show that: when mixed with smoke composition, on the condition that the mixing ratio of additives is 20% and negative oxygen balance is 20, compared with the traditional smoke composition obscuring ratio, the smoke composition synthesized obscuring ratio can be increased by 72% and 47% in infrared band.

Paper Details

Date Published: 31 January 2020
PDF: 10 pages
Proc. SPIE 11427, Second Target Recognition and Artificial Intelligence Summit Forum, 114271R (31 January 2020); doi: 10.1117/12.2551858
Show Author Affiliations
Siyan Chen, Nanjing Univ. of Science and Technology (China)
Chenguang Zhu, Nanjing Univ. of Science and Technology (China)
Yikai Wang, Nanjing Univ. of Science and Technology (China)
Chenguang Yan, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 11427:
Second Target Recognition and Artificial Intelligence Summit Forum
Tianran Wang; Tianyou Chai; Huitao Fan; Qifeng Yu, Editor(s)

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