Microporous fire-resistant thermal-insulation material and preparation process thereof
A thermal insulation material and fire-resistant technology, which is applied in the field of microporous refractory thermal insulation materials and their preparation, can solve the problems of short service life and poor thermal insulation performance, and achieve improved thermal insulation performance, good fire-resistant thermal insulation performance, and Good compressive strength and wear resistance
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Embodiment 1
[0016] In this example, the proportion of ingredients used is: 5 parts of silica-alumina sol, 20 parts of expanded vermiculite powder, 4 parts of polystyrene particles, 2 parts of polyaluminum chloride, 10 parts of nano-sized silicon micropowder, 5 parts of nano-sized titanium dioxide powder parts, 4 parts of alumina hollow spheres, 8 parts of ceramic fibers, 2 parts of magnesium oxide, 20 parts of aluminum silicate fibers and 10 parts of alumina.
[0017] The preparation process of the present embodiment comprises the following steps:
[0018] A. Mix expanded vermiculite powder, polystyrene particles, polyaluminum chloride, and aluminum oxide hollow balls and add them to a grinder for grinding for 30 minutes to obtain mixture A;
[0019] B. Add silica-alumina sol, nano-scale silicon micropowder, nano-scale titanium dioxide powder, and ceramic fiber to mixture A. After mixing, add it to a mechanical stirring tank for stirring. The stirring tank speed is 3000 rpm, and the stirr...
Embodiment 2
[0023] In this example, the proportion of ingredients used is: 15 parts of silica-alumina sol, 40 parts of expanded vermiculite powder, 10 parts of polystyrene particles, 8 parts of polyaluminum chloride, 20 parts of nano-scale silicon micropowder, and 15 parts of nano-scale titanium dioxide powder. parts, 12 parts of alumina hollow spheres, 17 parts of ceramic fibers, 10 parts of magnesium oxide, 40 parts of aluminum silicate fibers and 20 parts of alumina.
[0024] The preparation process of the present embodiment comprises the following steps:
[0025] A. Mix expanded vermiculite powder, polystyrene particles, polyaluminum chloride, and aluminum oxide hollow balls and add them to a grinder for grinding for 30 minutes to obtain mixture A;
[0026] B. Add silica-alumina sol, nano-scale silicon micropowder, nano-scale titanium dioxide powder, and ceramic fiber to mixture A. After mixing, add it to a mechanical stirring tank for stirring. The stirring tank speed is 3000 rpm, an...
Embodiment 3
[0030] In this example, the proportion of ingredients used is: 7 parts of silica-alumina sol, 25 parts of expanded vermiculite powder, 5 parts of polystyrene particles, 3 parts of polyaluminum chloride, 12 parts of nano-scale silicon micropowder, and 6 parts of nano-scale titanium dioxide powder. parts, 5 parts of alumina hollow spheres, 10 parts of ceramic fibers, 3 parts of magnesium oxide, 25 parts of aluminum silicate fibers and 12 parts of alumina.
[0031] The preparation process of the present embodiment comprises the following steps:
[0032] A. Mix expanded vermiculite powder, polystyrene particles, polyaluminum chloride, and aluminum oxide hollow balls and add them to a grinder for grinding for 30 minutes to obtain mixture A;
[0033] B. Add silica-alumina sol, nano-scale silicon micropowder, nano-scale titanium dioxide powder, and ceramic fiber to mixture A. After mixing, add it to a mechanical stirring tank for stirring. The stirring tank speed is 3000 rpm, and the...
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