Sprayable silicone rubber-based lightweight ablation-resistant thermal insulation coating and application thereof
A heat-insulating coating and ablation-resistant technology, applied in fire-resistant coatings, coatings, filling pastes, etc., can solve the problems of inability to cure, inability to bond metal substrates, etc., to improve the interface bonding force, facilitate construction, and facilitate construction. Effect
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[0034] Example 1
[0035] The sprayable silicone rubber-based lightweight ablation resistant coating of the present invention is composed of two components A and B according to certain mass parts. 100 parts room temperature vulcanized silicone rubber, 45 parts flame retardant filler, 3.2 parts carbon-based reinforcing filler, 10 parts silicon-based reinforcing filler, 0.1 dispersing agent, 5 parts coupling agent, 120 parts solvent,
[0036] Among them, the room temperature vulcanization silicone rubber is preferably a methyl phenyl vinyl silicone rubber with a viscosity of 5000 mPa.s.
[0037] Among them, the flame-retardant filler is preferably a combination of iron oxide, magnesium hydroxide, montmorillonite and cork powder, and the mass ratio is 6:25:4:10.
[0038] Among them, the chopped carbon fiber modified coupling agent is KH-550; the preferred chopped carbon fiber has a diameter of 7 μm and a length of 1 mm. The modified carbon fiber is first subjected to 400℃ / 30min muffle f...
Example Embodiment
[0060] Example 2
[0061] The sprayable silicone rubber-based lightweight ablation resistant coating of the present invention is composed of two components A and B according to certain mass parts. 80 parts of room temperature vulcanized silicone rubber, 45 parts of flame-retardant filler, 5 parts of carbon-based reinforcing filler, 10 parts of silicon-based reinforcing filler, 0.1 dispersing agent, 5 parts coupling agent, 100 parts solvent,
[0062] Among them, the room temperature vulcanization silicone rubber is preferably methyl phenyl vinyl silicone rubber and dimethyl silicone rubber with a viscosity of 2000 mPa.s, and the mass ratio is 2:1.
[0063] Among them, the flame-retardant filler is preferably a combination of iron oxide, magnesium hydroxide, montmorillonite and cork powder, and the mass ratio is 6:25:4:10.
[0064] Among them, the chopped carbon fiber modified coupling agent is KH-550; the preferred chopped carbon fiber has a diameter of 7 μm and a length of 1 mm. The ...
Example Embodiment
[0070] Example 3
[0071] The sprayable silicone rubber-based lightweight ablation resistant coating of the present invention is composed of two components A and B according to certain mass parts. 110 parts of room temperature vulcanized silicone rubber, 45 parts of flame retardant filler, 4 parts of carbon-based reinforcing filler, 10 parts of silicon-based reinforcing filler, 0.1 dispersing agent, 5 parts coupling agent, 150 parts solvent,
[0072] Among them, the room temperature vulcanized silicone rubber is preferably methyl phenyl vinyl silicone rubber and dimethyl silicone rubber with a viscosity of 7000 mPa.s, and the mass ratio is 3:1.
[0073] Among them, the flame-retardant filler is preferably a combination of iron oxide, magnesium hydroxide, montmorillonite and cork powder, and the mass ratio is 6:25:4:10.
[0074] Among them, the chopped carbon fiber modified coupling agent is KH-550; the preferred chopped carbon fiber has a diameter of 7 μm and a length of 1 mm. The mo...
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