Fiber-reinforced high-temperature-resistant thermal insulation and heat preserving ceramic coating and preparation method thereof
A technology of thermal insulation and fiber reinforcement, which is applied in the field of thermal insulation materials, can solve problems such as peeling, poor mechanical properties of coatings, and no toughness, etc., and achieves strong mechanical shear force, wide application range, and small thermal conductivity.
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Embodiment 1
[0024] 1. Weigh the raw materials according to the following weight ratio:
[0025] Epoxy and phenolic resin 35%, zirconia 10%, titanium dioxide 10%, heavy calcium 10%, aluminum silicate 5%, bentonite 4%, defoamer and dispersant 1%, coupling agent 2%, hollow Glass beads 10%, ceramic fiber 10%, thinner or thickener 3%.
[0026] 2. The method for preparing fiber-reinforced high-temperature-resistant thermal insulation ceramic coating using the above ratio is as follows:
[0027] Add the defoamer and the dispersant into the reaction kettle according to the proportion and mix them evenly; add zirconia, titanium dioxide, heavy calcium, aluminum silicate, bentonite in turn, add coupling agent, stir evenly, make a slurry, adjust the material The pH of the slurry is 8-10. Add ceramic fiber to the slurry, perform high-speed stirring and blue grinding to make the ceramic fiber uniformly dispersed in the slurry; add the mixture of epoxy resin and phenolic resin, add diluent or thickener, adju...
Embodiment 2
[0029] 1. Weigh the raw materials according to the following weight ratio:
[0030] Silicone resin and inorganic high temperature glue 40%, aluminum silicate 8%, talc 8%, alumina 4%, expanded perlite 2%, zinc oxide 6%, diatomaceous earth 5.5%, hollow glass beads 8%, 15% glass fiber, 1.5% dispersant and defoamer, 2% coupling agent.
[0031] 2. The method for preparing fiber-reinforced high-temperature-resistant thermal insulation ceramic coating using the above ratio is as follows:
[0032] Add the defoamer and the dispersant into the reaction kettle according to the proportion, and mix them evenly; add aluminum silicate, talc, alumina, expanded perlite, zinc oxide, diatomaceous earth, add coupling agent, and stir evenly to prepare Into slurry; add glass fiber to the slurry, perform high-speed stirring and blue grinding, so that the glass fiber is evenly dispersed in the slurry; add a mixture of silicone resin and inorganic high temperature glue, add diluent or thickener, adjust The...
Embodiment 3
[0034] 1. Weigh the raw materials according to the following weight ratio:
[0035] Inorganic high temperature glue 35%, zirconia 5%, titanium dioxide 10%, aluminum silicate 10%, mica powder 10%, bentonite 4%, alumina 6%, hollow ceramic beads 10%, carbon fiber 5%, defoamer 3%, coupling agent 2%.
[0036] 2. The method for preparing fiber-reinforced high-temperature-resistant thermal insulation ceramic coating using the above ratio is as follows:
[0037] Add the defoamer and the dispersant into the reaction kettle according to the proportion and mix them evenly; add zirconium oxide, titanium dioxide, aluminum silicate, mica powder, bentonite, and aluminum oxide in turn, add coupling agent, stir evenly, and make a slurry ; Add carbon fiber to the slurry, perform high-speed stirring and blue grinding to make the carbon fiber uniformly dispersed in the slurry; add inorganic high-temperature glue and diluent or thickener to adjust the slurry to a suitable viscosity; add hollow ceramic ...
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