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US 11,617,909 B2Granted
Method for preparing non-corrosive fire extinguishing agent
AssigneesHuazhong University of Science and Technology, Zhejiang Landun Electrician New Material Technology Co., Ltd.
InventorsYuancheng Cao, Weixin Zhang, Shun Tang, Yunhui Zhong, Hao Wu
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Abstract
A method for preparing a non-corrosive fire extinguishing agent, including combining a methyl phosphate organosilane material and a perfluorohexanone to prepare the fire extinguishing agent.
Claims19
A method for preparing a fire extinguishing agent, comprising:
- (1) dissolving polyethylene glycol and a silane coupling agent in a solvent followed by reaction in a first inert gas and filtration to obtain a first reaction product;
- (2) mixing the first reaction product obtained in step (1) with a nano-silica hydrosol followed by reaction in a second inert gas and centrifugation to obtain a second reaction product;
- (3) mixing the second reaction product obtained in step (2) with polypropylene glycol followed by reaction to obtain a third reaction product;
- (4) mixing the third reaction product obtained in step (3) with dimethyl methylphosphonate followed by reaction to obtain a methyl phosphate organosilane gel fire extinguishing material;
- (5) pouring the methyl phosphate organosilane gel fire extinguishing material obtained in step (4) on a mold followed by freeze-drying and crushing to obtain a granular fire extinguishing material;
- and
- (6) purifying the granular fire extinguishing material obtained in step (5) followed by mixing with perfluoro(2-methyl-3-pentanone) to obtain the fire extinguishing agent.
4 more elements
Dependencies are inferred from the claim text.