Research Article
Experimental Study on Reducing the Heat of Curing Reaction of Polyurethane Polymer Grouting Material
Table 4
Experiment scheme of catalyst combination (%).
| | Combination scheme | White material | Tertiary amine catalyst | Potassium acetate | Organotin catalysts | | Combined polyether | Flame retardant | High-boiling point solvent | Surface active agent | HCFC-141b |
| | 1 | 67.0 | 10 | 15 | 1 | 8 | 0.5 | 0 | 0 | | 2 | 67.0 | 10 | 15 | 1 | 8 | 0.2 | 0.3 | 0 | | 3 | 67.0 | 10 | 15 | 1 | 8 | 0.2 | 0 | 0.3 | | 4 | 67.0 | 10 | 15 | 1 | 8 | 0.2 | 0.1 | 0.2 |
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