Environmental-friendly harmless high-flame-retardant polymer material for plugging water and reinforcing coal and rock masses in coal mines and preparation method thereof
A polymer material and high flame-retardant technology, applied in the field of polyurethane materials, can solve problems such as environmental pollution and flame-retardant performance degradation, and achieve the effects of durable flame-retardant performance, enhanced rigidity, and excellent mechanical properties
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[0030] Example 1: The preparation method of phenolic phosphonate polyol is as follows: 100g of triphenyl phosphite, 50g of DEG, 0.1g of 2,6-di-tert-butyl p-methylphenol and 0.01g of tetrabutyl titanate Proportional feeding is in the autoclave, ensuring the nitrogen environment in the kettle, reacting at 135°C for 6 hours, cooling to 85°C, adding 15g of formaldehyde, the reaction exotherms, the temperature is gradually increased to 105°C, and the reaction is continued at 100°C for 4 hours. Remove unreacted formaldehyde, add 15g epoxy resin DYD-127, add ethylene oxide until the acid value drops below 5mgKOH / g, vacuum remove unreacted ethylene oxide, add 25g epoxy resin DYD-127 Get the product. After adsorption, filtration, distillation and other processes, a phosphonate polyol with a phosphorus content of 4.88% was obtained, and no hydrolysis was found during the storage period.
[0031] An environmentally friendly, harmless and high flame-retardant polymer material for water shut...
Example Embodiment
[0032] Example 2: The preparation method of phenolic phosphonate polyol is as follows: 150g of triphenyl phosphite, 45g of DEG, 0.1g of 2,6-di-tert-butyl p-methylphenol and 0.01g of tetrabutyl titanate Proportionally feed into the autoclave, ensure the nitrogen environment in the kettle, react at 135°C for 6 hours, cool to 85°C, add 30g formaldehyde, the reaction exotherms, the temperature gradually rises to 105°C, keep at 100°C and continue the reaction for 4 hours. Remove unreacted formaldehyde, add 20g epoxy resin DYD-127, add ethylene oxide until the acid value drops below 5mgKOH / g, vacuum remove unreacted ethylene oxide, add 30g epoxy resin DYD-127 Get the product. After adsorption, filtration, distillation and other processes, a phosphonate polyol with a phosphorus content of 5.45% was obtained, and no hydrolysis was found during the storage period.
[0033] An environmentally friendly, harmless and high flame-retardant polymer material for water shutoff and reinforcement ...
Example Embodiment
[0034] Example 3: The preparation method of phenolic phosphonate polyol is as follows: 170g of triphenyl phosphite, 55g of DEG, 0.1g of 2,6-di-tert-butyl p-methylphenol and 0.01g of tetrabutyl titanate Proportional feeding is in the autoclave, ensuring the nitrogen environment in the kettle, reacting at 135°C for 6 hours, cooling to 85°C, adding 35g of formaldehyde, the reaction exotherms, the temperature is gradually increased to 105°C, and the reaction is continued at 100°C for 4 hours. Remove unreacted formaldehyde, add 40g epoxy resin DYD-127, add ethylene oxide until the acid value drops below 5mgKOH / g, vacuum remove unreacted ethylene oxide, add 35g epoxy resin DYD-127 Get the product. After adsorption, filtration, distillation and other processes, a phosphonate polyol with a phosphorus content of 5.07% was obtained, and no hydrolysis was found during the storage period.
[0035] An environmentally friendly, harmless and high flame-retardant polymer material for water shut...
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