Preparation method of high-strength thermal insulation material
A thermal insulation material and high-strength technology, which is applied in the field of preparation of high-strength thermal insulation materials, can solve the problems of thermal insulation materials such as easy deformation, poor thermal insulation performance, and poor mechanical strength, so as to reduce thermal conductivity and enhance density Performance and structural strength, and the effect of improving thermal insulation performance
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Embodiment 1
[0033] Preparation of the dispersion:
[0034] Put vermiculite and montmorillonite into a planetary ball mill at a mass ratio of 5:1, put it into a planetary ball mill at a speed of 80r / min and a ball-to-material ratio of 10:1 and grind for 30min to obtain a grinding mixture, and mix the grinding mixture with mass The ethylene glycol solution with a fraction of 5% is put into a beaker at a mass ratio of 1:10, and stirred with a stirrer at a speed of 300r / min for 60min to obtain a dispersion;
[0035] Preparation of alkaline reaction solution:
[0036] Put the dispersion into a three-necked flask, add dropwise a sodium hydroxide solution with a mass fraction of 8% to adjust the pH value to 10, place the three-necked flask in a resistance heating mantle, and raise the temperature inside the heating mantle to 100°C. Stir with a stirrer at a speed of 200r / min for 30min to obtain an alkaline reaction solution;
[0037] Preparation of the reaction solution:
[0038] Add ramie fib...
Embodiment 2
[0046] Preparation of the dispersion:
[0047] Put vermiculite and montmorillonite into the planetary ball mill at a mass ratio of 5:1, put it into the planetary ball mill at a speed of 90r / min and a ball-to-material ratio of 10:1 and grind for 35min to obtain a grinding mixture, and mix the grinding mixture with mass The ethylene glycol solution with a fraction of 7.5% is put into a beaker at a mass ratio of 1:10, and stirred with a stirrer at a speed of 325r / min for 70min to obtain a dispersion;
[0048] Preparation of alkaline reaction solution:
[0049] Put the dispersion into a three-necked flask, add dropwise a sodium hydroxide solution with a mass fraction of 9% to adjust the pH value to 10.5, place the three-necked flask in a resistance heating mantle, and raise the temperature inside the heating mantle to 105°C. Stir with a stirrer at a speed of 210r / min for 35min to obtain an alkaline reaction solution;
[0050] Preparation of the reaction solution:
[0051] Add r...
Embodiment 3
[0059] Preparation of the dispersion:
[0060] Put vermiculite and montmorillonite into a planetary ball mill at a mass ratio of 5:1, put it into a planetary ball mill at a speed of 100r / min and a ball-to-material ratio of 10:1 and grind for 40 minutes to obtain a grinding mixture, and mix the grinding mixture with mass The ethylene glycol solution with a fraction of 10% is put into a beaker at a mass ratio of 1:10, and stirred with a stirrer at a speed of 350r / min for 80min to obtain a dispersion;
[0061] Preparation of alkaline reaction solution:
[0062] Put the dispersion into a three-necked flask, add dropwise a sodium hydroxide solution with a mass fraction of 10% to the three-necked flask to adjust the pH to 11, place the three-necked flask in a resistance heating mantle, and raise the temperature inside the heating mantle to 110°C. Stir with a stirrer at a speed of 220r / min for 40min to obtain an alkaline reaction solution;
[0063] Preparation of the reaction solut...
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