Abstract
Coal mine fires pose a threat to the lives of underground workers and cause incalculable losses to the national economy. When a fire occurs, the temperature in the underground wells will rise, which becomes a huge hidden danger that needs to be controlled to prevent disasters. In this paper, using sodium carboxymethyl cellulose as a matrix and through graft copolymerization of acrylic acid and 2-acrylamide-2-methylpropanesulfonic acid, a novel fire-extinguishing gel with high water absorption and high resistance has been prepared. It has a high water absorption ratio as well as an excellent fire prevention effect. The microscopic reaction and structure of the product are analyzed by infrared spectroscopy, thermogravimetry, X-ray diffraction and scanning electron microscopy. By testing the properties of the gel, it is proven that the product has a fast water absorption rate with a high ratio, strong salt tolerance, good water retention and the obvious effects of filling, sealing and fire extinguishing.
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