CPC C09D 7/61 (2018.01) [B82Y 30/00 (2013.01); C09D 1/00 (2013.01); C09D 7/63 (2018.01); C09D 7/70 (2018.01)] | 5 Claims |
1. A high-temperature nano-composite coating, comprising the following components in mass ratio:
high-temperature resistant inorganic fiber 15%˜30%;
reinforcing filler 10%˜20%;
high-temperature expansion filler 5%˜15%;
skeleton filler 7%˜15%;
nanopowder 3%˜10%;
inorganic suspending agent 0%˜20%;
inorganic binder 25%˜50%;
organic additive 3%˜15%; and
water accounting for 10%˜50% of a total mass of all the above components;
wherein a length of the high-temperature resistant inorganic fiber is 0.01 mm;
the reinforcing filler is selected from one or more of acicular microsilica powder with an aspect ratio of (15-20):1 and pyrophyllite powder with a particle size of 200-300 mesh;
the high-temperature expansion filler is selected from one or more of kyanite powder and sillimanite;
the skeleton filler is selected from one or more of alumina powder, corundum powder, mullite powder and zircon powder;
the nanopowder is selected from one or more of nano silica and nano alumina powder, and has a particle size of 1-100 nm;
the inorganic suspending agent is bentonite;
the organic additive comprises an antiseptic agent, an antifreeze agent and an organic binder, wherein the antiseptic agent is Biocide, the antifreeze agent is ethylene glycol, and the organic binder is selected from the group consisting of starch, dextrin, cellulose and combinations thereof.
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