Catalytic complex for preparing isocyanurate foam from bagasse ployol
A polyurethane foam and polyol technology, applied in the field of catalytic composites, can solve problems such as easy errors in weighing, difficult mixing to achieve uniformity, complex composition of bagasse polyols, etc.
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Embodiment 1
[0017] Add 100g of ethylene glycol, 1g of triethylenediamine, 6g of dibutyltin dilaurate and 50g of F-502 into a glass container, stir magnetically for 5-10min, seal it up, and put it in a desiccator for later use.
[0018] Take 2.8g of the prepared catalytic compound, stir for 2-5min, add 100g of bagasse polyol, stir evenly, add 300g of polymerized diphenylmethane diisocyanate, stir for 30 seconds on a high-speed mixer at 2000 rpm, pour into Free foaming in the mold. Curing at room temperature, mold temperature 25°C. The prepared foam density is 59kg m -3 , The compressive strength is 470KPa.
Embodiment 2
[0020] Add 100g of polyethylene glycol 400, 5g of stannous octoate and 60g of AK-8805 into a glass container, stir magnetically for 5-10min, seal it up, and put it in a desiccator for later use.
[0021] Take 3.10 g of the prepared catalytic compound, stir for 2-5 minutes, add 100 g of bagasse polyol, 6 g of water, stir evenly, and add 224 g of polymerized diphenylmethane diisocyanate. Blend on a high-speed mixer at 2000 rpm for 20 seconds, pour into molds and foam freely. Curing at room temperature, mold temperature 35°C. The prepared foam density is 34kg m -3 , The compressive strength is 220KPa.
Embodiment 3
[0023] Add 100g of polyethylene glycol 400, 15g of triethylenediamine, 10g of stannous octoate and 30g of AK-8805 into a glass container, stir magnetically for 5-10min, seal it well, and put it in a desiccator for later use.
[0024]Take 3.5g of the prepared catalytic compound, stir for 2-5min, add 100g of bagasse polyol, 1.5g of water, stir evenly, add 160g of polymerized diphenylmethane diisocyanate. Blend on a high-speed mixer at 2000 rpm for 15 seconds, pour into molds and foam freely. After curing in an oven at 80°C for 20 minutes, place it at room temperature for curing, and the mold temperature is 40°C. The prepared foam density is 30kg·m -3 , Compression strength 200KPa.
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