Polyurethane sole for low-density environment-friendly sponge cake sole and preparation method thereof
An environmentally friendly technology for shoe soles, applied in the field of polyurethane materials, can solve the problems affecting the aesthetics of platform shoes, poor resin fluidity, sole bubbles, etc., achieve good fluidity, reduce bubbles, and reduce production costs.
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Embodiment 1
[0037] The preparation method of polyurethane sole for low-density environment-friendly type sponge cake sole is as follows:
[0038] (1) Component A: Add 48.0kg CMA-254, 40.0kg PE-2325, 10.0kg PE-POPs into the reactor for stirring, then add 15.0kg ethylene glycol, 3.0kg butanediol, 1.0kg propylene Triol, 0.3kg DC193, 0.6kg water, stirred at 55°C for 3h, sealed and stored;
[0039] (2) Component B: Add 25.0kg CMA-244 and 15.0kg EP-3600 into the reaction kettle in turn and stir evenly, heat up to 100°C, vacuumize to -0.098MPa, vacuum dehydrate and degas for 2 hours, and cool down to 40°C , add 65kg MDI-100 and phosphoric acid accounting for 0.001% of the total weight of component B, heat up to 90°C, react for 3h, cool down to 40°C, pack into barrels, and store in a nitrogen-tight seal;
[0040] (3) Firstly, 35wt% of triethylenediamine and 65wt% of ethylene glycol are formulated into component C, and then component C, which accounts for 2% of the total amount of component A, is...
Embodiment 2
[0042] The preparation method of polyurethane sole for low-density environment-friendly type sponge cake sole is as follows:
[0043] (1) A component: Add 65.0kg EP62, 35.0kg PE-2325, 15.0kg PE-POPs into the reaction kettle for stirring, then add 15.0kg ethylene glycol, 1.5kg diethanolamine, 0.5kg L-1500, 0.6kg of water, stirred at 50°C for 2 hours, sealed and stored;
[0044] (2) Component B: Add 30.0kg CMA-244 and 20.0kg EP-330N into the reaction kettle and stir evenly, heat up to 100°C, vacuumize to -0.098MPa, vacuum dehydrate and degas for 3 hours, and cool down to 40°C , add 60kg 44C, 20kg103C and phosphoric acid accounting for 0.001% of the total weight of component B, raise the temperature to 85°C, react for 2.5h, cool down to 40°C, put in barrels, and store in a sealed nitrogen atmosphere;
[0045](3) Firstly, 40wt% of triethylenediamine and 60wt% of ethylene glycol are formulated into component C, and then component C, which accounts for 1.5% of the total amount of c...
Embodiment 3
[0047] The preparation method of polyurethane sole for low-density environment-friendly type sponge cake sole is as follows:
[0048] (1) Component A: Add 50.0kg HR-254, 42.0kg PE-2325, 18.0kg PE-POPs into the reactor for stirring, then add 8.0kg ethylene glycol, 5.0kg propylene glycol, 0.3kg DC193, 0.5 kg DC3042, 0.8kg water, stirred at 50°C for 3 hours, sealed and stored;
[0049] (2) Component B: add 27.0kg HR-244 and 16.0kg ED-28 into the reaction kettle in turn and stir evenly, heat up to 100°C, vacuumize to -0.098MPa, vacuum dehydrate and degas for 2 hours, and cool down to 40°C , add 74kg of MDI-100 and phosphoric acid accounting for 0.001% of the total weight of component B, heat up to 90°C, react for 3h, cool down to 40°C, pack into barrels, and store in a nitrogen-sealed state;
[0050] (3) Firstly, 33wt% of triethylenediamine and 67wt% of ethylene glycol are formulated into component C, and then component C, which accounts for 2.5% of the total amount of component ...
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