Polyurethane foaming glue with added large-molecular modified calcium carbonate
A technology of polyurethane foam and calcium carbonate, which is applied in the field of polyurethane foam, can solve the problems of unsatisfactory safety, poor heat resistance, and low production efficiency, achieve good heat insulation effect, reduce hydrophilicity, and cost low effect
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[0014] A polyurethane foam added with macromolecular modified calcium carbonate, made of the following raw materials in parts by weight (kg): 150 diphenylmethane diisocyanate, 100 trihydroxypolyoxypropylene ether, 100 castor oil, and glycerin 5. Diethyl phosphate 40, an appropriate amount of 1mol / L sodium hydroxide solution, diatomaceous earth 13, distilled water 5, triethanolamine 2, dibutyltin dilaurate 3, sodium α-olefin sulfonate 3, dimethyl silicone oil 5 , methyl methacrylate 9, butyl acrylate 9, mercaptoethanol 0.25, toluene amount, azobisisobutyronitrile 0.015, nano calcium carbonate 5.
[0015] Described a kind of polyurethane foam glue that adds macromolecule modified calcium carbonate is made by following specific steps:
[0016] (1) Pour trihydroxypolypropylene oxide ether, castor oil and glycerin into the reaction kettle, heat it in a constant temperature water bath to 85°C, stir and react at a speed of 150 rpm for 60 minutes, then cool down to 40°C, slowly drop ...
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