Dry water—a new type of green and efficient fire extinguishing material

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  • College of Chemistry and Chemical Engineering,Xi'an University of Science and Technology, Xi'an 710054

Received date: 2019-12-26

  Revised date: 2021-02-03

  Online published: 2021-06-10

Abstract

Dry water and the recent progress in dry water fire extinguishing materials were reviewed,and introduced their fire extinguishing mechanism,and the problems to be solved,in an attempt to make people understand this new type of green and efficient fire extinguishing materials with great application potential.Dry water is a kind of stable gas-enveloped water structure with hydrophobic solid particles as stabilizers.The water content of dry waters can be as high as 90%,but their appearance is fine powders with good fluidity.The extinguishing efficiency of dry water is higher than ABC extinguishing powders and fine water mist.Compared with ordinary water,water in dry water fire is confined in solid shell,which can significantly reduce water damage and secondary pollution during firefighting.Compared with fine water mist containing additives,dry water has lower corrosivity and higher resistance to low temperature.Compared with extinguishing powders,dry water with additives has strong physical cooling effect as well as chemical fire extinguishing effect.In the future work,it is necessary to clarify the formation mechanism and extinguishing mechanism of dry water and optimized the preparation process of dry water extinguishing materials.Dry water have the advantages of both water and dry powder,and overcome their disadvantages to some extent,which will have important theoretical significance and broad application prospects.

Cite this article

Gao Jianqiang, He Yongjun, Yang Hui, Ning Jiao, Zhu Lina, Liang Yaodong . Dry water—a new type of green and efficient fire extinguishing material[J]. New Chemical Materials, 2021 , 49(5) : 43 -47 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.05.010

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