Temperature-sensitive composite gel for preventing and treating spontaneous combustion of mine coal and preparation method of temperature-sensitive composite gel

• Main Authors: LIU NING, DUAN SHOULEI, QIN BOTAO, SUN LULU, LV XINWEI, ZHENG HUIMIN
• Format: Patent
• Language: Chinese; English
• Published: 02.05.2023
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The invention discloses a temperature-sensitive composite gel for preventing spontaneous combustion of mine coal, which comprises the following components in parts by weight: 4-10 parts of a base material, 0.3-1.5 parts of an initiator, 0.3-2 parts of a cross-linking agent, 6-15 parts of a film-forming agent and 0.3-2 parts of a flame retardant, and the base material is formed by mixing a base material A and a base material B according to the weight ratio of (1-5): (0.5-5), the base material A comprises the following components in parts by weight: 1-3 parts of methyl cellulose, 1-1.5 parts of sodium carboxymethyl cellulose and 0.5-1 part of hydroxypropyl methyl cellulose, the base material B comprises the following components in parts by weight: 1-3 parts of N-isopropylacrylamide, 1-1.5 parts of N-ethylacrylamide and 0.5-1 part of N, N-diethylacrylamide, and the cross-linking agent is N, N-dimethylacrylamide. The initiator comprises ammonium persulfate and potassium persulfate, and the fire extinguishing agen