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| Study on Preparation and Properties of Polymer Gel Inhibitor for Coal Mine |
| Wang Liangying, Wang Bin, Zhang Chuhang |
| School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China |
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Abstract In order to keep the goaf stable and moisturizing for a long time and prevent spontaneous combustion, it is necessary to fill with glue to seal up leakage, and to prevent fire by oxygen-insulating cooling. In this paper, a new type of composite colloid fire-extinguishing material is presented, which combines organic polymers and inorganic coagulants, and studies the fire extinguishing performance of the new colloidal inhibitor for coal mines by analyzing the water-holding property, thermal stability, plugging property, bonding property, colloid strength and other indicators of the material. The results showed that when sodium alginate was 4.6%, coagulant accelerator was 2.5%, polyacrylamide was 0.4%, and xanthan gum was 1.0%, the water retention and thermal stability of the gel inhibitor were the best, the plugging performance was increased by 52.70%, the bonding performance was increased by 117.62%, and the colloid strength was doubled.
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