A kind of organosilicon modified polyurethane synthetic glue and preparation method thereof
A polyurethane, synthetic adhesive technology, applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve problems such as fixing or repairing, steam pipe rupture, waste, etc.
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[0028] The preparation method of organosilicon-modified polyurethane synthetic glue comprises the following steps in sequence:
[0029] (1) Open the reactor, set the interlayer hot oil temperature to 73°C, and heat the reactor to 73°C;
[0030] (2) Add 36.5kg carbodiimide modified MDI, the reaction kettle speed is 60r / min, the time is 15min, and the heating temperature is 68°C;
[0031] (3) Add 18.2kg of polyether polyol GE-210, the reaction kettle speed is 120 r / min, the time is 20min, and the temperature is 68°C;
[0032] (4) Add 0.36kg of fumed silica, the reaction kettle speed is 180 r / min, the time is 30min, and the temperature is 68°C;
[0033] (5) Add 0.29kg sodium lauryl sulfate, 0.15kg dibutylhydroxytoluene, the reaction kettle speed is 180 r / min, the time is 15min, and the temperature is 68°C;
[0034] (6) Add 2.6kg of polyether polyol GE-303, the reaction kettle rotates at 120 r / min, and heats to 82°C for 30 minutes;
[0035] (7) Add 0.06kg of methanesulfonic aci...
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