Theoretical Study on Efficiency of Anti-explosion and Fireproof Agents  

作　　者：HUANG, Chao YANG, Xu-Jie LU, Lu-De WANG, Xin 

机构地区：[1]Materials Chemistry Laboratory, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China [2]Jiangsu Police Institute, Nanjing, Jiangsu 210012, China

出　　处：《Chinese Journal of Chemistry》2005年第11期1503-1509,共7页中国化学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China （No. 50372028） and the Natural Science Foundation of Jiangsu Province （No. BK2005130）.

摘　　要：Multi-protection is a principle in security management, and the use of anti-explosion and fireproof agents is a crucial part of it. In this paper, the properties of nano-oxide particles in the field of anti-explosion and fireproof were analyzed. The sedimentation velocity of nanometer particles was calculated. CH4 was taken as an example, and its combustion mechanism of the initial stages was concluded. The effects of 15 oxides on molecular energies of the reaction system were calculated with program Hyperchem 6, and the possible contact manner between radi- cals and oxides was got. It was concluded that oxides, such as ZrO2, could combine with radicals, and thus prevent the combustion reaction. It was found that the nano-ZrO2 eruptively generated aerosol is superior to other counterparts in serving as the anti-explosion and fireproof agent, and therefore, will play an increasingly important role in the security management.Multi-protection is a principle in security management, and the use of anti-explosion and fireproof agents is a crucial part of it. In this paper, the properties of nano-oxide particles in the field of anti-explosion and fireproof were analyzed. The sedimentation velocity of nanometer particles was calculated. CH4 was taken as an example, and its combustion mechanism of the initial stages was concluded. The effects of 15 oxides on molecular energies of the reaction system were calculated with program Hyperchem 6, and the possible contact manner between radi- cals and oxides was got. It was concluded that oxides, such as ZrO2, could combine with radicals, and thus prevent the combustion reaction. It was found that the nano-ZrO2 eruptively generated aerosol is superior to other counterparts in serving as the anti-explosion and fireproof agent, and therefore, will play an increasingly important role in the security management.

关 键 词：NANOMETER AEROSOL eruptively generated aerosol anti-explosion and fireproof agent 

分 类 号：TB383[一般工业技术—材料科学与工程]