▎ 摘　　要

NOVELTY - Phase-change hydrated salt polymerization filling material, comprises 25-35 pts. wt. component A, 50-60 pts. wt. component B and 20-30 pts. wt. component C. The component A is mainly prepared from 50-60 pts. wt. polyether polyol, 3-8 pts. wt. foaming agent, 8-10 pts. wt. flame retardant and 1-8 pts. wt. heat conducting material. The component B is mainly prepared from 72-80 pts. wt. polymeric MDI and 3-4 pts. wt. adhesive. The component C is phase-change nano fluid which is mainly prepared from 15-20 pts. wt. polyether polyol, 6-8 pts. wt. silicone oil and 10-25 pts. wt. composite phase-change nano material. The composite phase change nano material is mainly prepared from 10-20 pts. wt. porous material, 60-70 pts. wt. hydrated salt, 1-4 pts. wt. surfactant, 2-4 pts. wt. thickening agent, 2-3 pts. wt. dispersing agent and 4-6 pts. wt. flame retardant. USE - Phase-change hydrated salt polymerization filling material. ADVANTAGE - The filling material realizes the temperature self-adaptive adjustment of material polymerization speed, guarantees the original properties of material foaming performance, reduces the temperature of polyurethane foaming and curing reaction, and solves the problem of fire caused by high temperature of polyurethane foaming and curing reaction. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: A method for preparing a phase-change hydrated salt polymeric fill material by using a mining low exothermic phase-change hydrated salt polymeric fill material preparation device, which involves: (a) stirring polyether polyol, a foaming agent, a flame retardant and a heat conduction material according to a ratio to prepare a component A, (b) stirring the polymeric MDI and the adhesive according to the proportion to prepare a component B, (c) measuring according to the national standard of high polymer materials for reinforcing coal and rock masses in a coal mine, where the mass ratio of the high polymer materials is 1:1, taking the component A and the component B according to the volume ratio, mixing the component A and the component B into a test sample with the total volume of 200 mL, stirring the test sample for 15-30 second in a stirrer, and measuring the temperature change of the reaction heat release before and after the foaming of the prepared polyurethane is finished, to obtain the heat release rate of the polyurethane, (d) selecting a preparation raw material of the porous material according to the heat release rate of the polyurethane, and selecting a porous material with a heat conductivity coefficient of 1-1.5W/(m.K) for enhancing the heat conductivity parameter when the heat release rate of the polymer reaches or is higher than 1.2℃/s, (e) when the heat release rate of the polymer is lower than 1.2 ℃/s, selecting a porous material with a heat conduction coefficient of 0.02-0.2 W/(m.K) and a heat conduction weakening parameter type; stirring hydrated salt at 55-65℃ to melt at constant temperature to obtain clear liquid, adding a certain amount of thickening agent, dispersing agent, flame retardant and surfactant, stirring for 30-45 minutes, adding the porous material to adjust the thermal conductivity coefficient of the hydrated salt, stirring for 1-1.5 hours, slowly cooling to room temperature in a constant temperature oscillator, immediately freezing in a refrigerator for 12-16 hours, and finally drying for 24-30 hours by using a freeze dryer to obtain the composite phase-change nano material, (f) putting polyether polyol, a foaming agent, a flame retardant and a heat conduction material into a material tank A, and stirring to prepare a component A, (g) putting the polymeric MDI and the adhesive into a material tank B according to the proportion and stirring to prepare a component B, (h) putting polyether glycol, silicone oil and the composite phase-change nano material into a C material tank according to the proportion, and stirring to prepare a C-component phase-change nano fluid, and (i) mixing the component A and the component C in proportion through a mixing kettle I (4), then premixing for 1-5 minutes through a static mixer I (5), fully stirring and mixing through a mixing kettle II (6) to obtain a component A-C, and mixing the component A-C and the component B through a static mixer II (7) to obtain the mining low-heat-release phase-change hydrated salt polymerized filling material. A method for using phase-change hydrated salt polymeric filling material, where spray gun (8) is connected with a static mixer II (7). The mining low-exothermic phase-change hydrated salt polymeric filling material output from the static mixer II is sprayed out through the spray gun. The infrared temperature sensing system (9) is arranged on the spray gun, and the infrared temperature sensing system is electrically connected with an automatic flow-adjusting multifunctional intelligent variable frequency flow pump I (11), an automatic flow-adjusting multifunctional intelligent variable frequency flow pump II (12), an automatic flow-adjusting multifunctional intelligent variable frequency flow pump III (10) and an automatic flow-adjusting multifunctional intelligent variable frequency flow pump IV (13). The infrared temperature sensing system is used to measure the foaming temperature of the real-time polymerized filling material, and further convert the foaming temperature into an electronic signal and feed the electronic signal back to the automatic flow-adjusting multifunctional intelligent variable-frequency flow pump. The automatic flow-adjusting multifunctional intelligent variable-frequency flow pump is used to judge and process electronic data to adjust the flow rate of each component after receiving the electronic signal, where the flow rate of the component A and the flow rate of the component B are both 4-10kg/min, and when the foaming temperature of the polymerized filling material is lower than 70 ℃, the flow rate of the component C is adjusted to be 0.3-0.5 kg/min. When the foaming temperature of the polymerization filling material is 70-95℃, adjusted the flow rate of the component C to be 0.5-1 kg/min and reducing the flow rates of the component A and the component B to be lower than 4 kg/min in time. If the foaming temperature of the polymeric filling material is higher than 95℃, the flow rate of the A-C mixed component and the flow rate of the B component are reduced until the foaming is stopped. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of phase-change hydrous salt polymeric filling material. 1Material tank A 2Material tank B 3Material tank C 4Mixing kettle I 5Static mixer I 6Mixing kettle II 7Static mixer II 8Spray gun 9Infrared temperature sensing system 10Multifunctional intelligent variable-frequency flow pump III 11Multifunctional intelligent variable-frequency flow pump I 12Multifunctional intelligent variable-frequency flow pump II 13Multifunctional intelligent variable frequency flow pump IV