A thermal insulation sealant
A technology of caulking agent and additive, which is applied in the field of thermal insulation caulking agent, can solve the problems that thermal insulation performance and mechanical performance cannot be further improved, and achieve the effects of improved thermal insulation performance, crack resistance and hydrophobicity
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example 1
[0020]Mix sodium hydroxide and magnesium chloride hexahydrate in a beaker at a mass ratio of 1:4, and add water 30 times the mass of sodium hydroxide and a mixture of sodium lauryl sulfate 0.6 times the mass of sodium hydroxide to the beaker. After stirring and mixing for 60 minutes under the condition of 65°C and 1200r / min, the aqueous phase mixture was obtained; acrylonitrile and methyl acrylate were mixed in the flask at a mass ratio of 3:1, and 0.2 mass of acrylonitrile was added to the flask. times vinyl acetate, isopentane 0.4 times the mass of acrylonitrile, azobisisobutyronitrile 0.05 times the mass of acrylonitrile and ethylene glycol dimethacrylate 0.02 times the mass of acrylonitrile, at a temperature of 55°C, After stirring and mixing for 60 minutes at a rotation speed of 1000r / min, an oil phase mixture was obtained. Mix the oil phase mixture and the water phase mixture at a mass ratio of 1:3, and stir and mix at a temperature of 65°C and a rotation speed of 1200r / m...
example 2
[0022] Mix sodium hydroxide and magnesium chloride hexahydrate in a beaker at a mass ratio of 1:4, and add water 30 times the mass of sodium hydroxide and a mixture of sodium lauryl sulfate 0.6 times the mass of sodium hydroxide to the beaker. After stirring and mixing for 60 minutes at 65°C and 1200r / min, the aqueous phase mixture was obtained; the pretreated chitin and water were mixed at a mass ratio of 1:260, and the pretreatment was adjusted with acetic acid with a mass dispersion of 20%. The mixture of chitin and water has a pH of 4, ultrasonically disperses at a frequency of 50 kHz for 25 minutes, centrifuges, and takes the upper layer to obtain a chitin fiber dispersion; mix the chitin fiber dispersion with chitosan solution Mix in a conical flask at a mass ratio of 1:5, stir and mix for 2 hours at a temperature of 55°C and a speed of 400r / min to obtain a chitin-chitosan mixture, and mix the chitin-chitosan mixture with Anhydrous ethanol was mixed in a three-necked fla...
example 3
[0024] Mix sodium hydroxide and magnesium chloride hexahydrate in a beaker at a mass ratio of 1:4, and add water 30 times the mass of sodium hydroxide and a mixture of sodium lauryl sulfate 0.6 times the mass of sodium hydroxide to the beaker. After stirring and mixing for 60 minutes under the condition of 65°C and 1200r / min, the aqueous phase mixture was obtained; acrylonitrile and methyl acrylate were mixed in the flask at a mass ratio of 3:1, and 0.2 mass of acrylonitrile was added to the flask. times vinyl acetate, isopentane 0.4 times the mass of acrylonitrile, azobisisobutyronitrile 0.05 times the mass of acrylonitrile and ethylene glycol dimethacrylate 0.02 times the mass of acrylonitrile, at a temperature of 55°C, After stirring and mixing for 60 minutes at a rotation speed of 1000r / min, an oil phase mixture was obtained. Mix the oil phase mixture and the water phase mixture at a mass ratio of 1:3, and stir and mix at a temperature of 65°C and a rotation speed of 1200r / ...
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