Water-based high-weather-resistance fair-faced concrete protective coating system and preparation method thereof
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A technology for fair-faced concrete and protective coatings, applied in coatings, epoxy resin coatings, etc., can solve the problems of limited protective durability, poor UV aging resistance, low cohesive strength and hardness, and achieve excellent bonding performance, Good weather aging resistance and excellent weather resistance effect
Active Publication Date: 2020-10-16
湖南固特邦土木技术发展有限公司
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The permeable structure mainly adopts cement-based permeable crystalline and organosilicon permeable materials. The permeable system provides hydrophobic effect within 2-5mm of the concrete surface and has a certain waterproof and impervious ability, but the protection durability of this system is limited, and Poor recoatability
A kind of concrete protective coating system disclosed by CN201872393U comprises silane permeable layer, silane hybrid elastic breathable isolation layer, surface decoration layer, the concrete protective coating system disclosed in this patent has gas permeability, and can not isolate gas corrosion medium such as carbon dioxide, sulfur dioxide The intrusion and corrosion of concrete, etc., have limited protective effect on concrete, and the UV aging resistance of silane is worse than that of fluorocarbon materials, which makes the service life of the system shorter
CN102976788A discloses a coating for clear-water concrete surface protect
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Embodiment 1
[0050] The water-based high-weather-resistant fair-faced concrete protective coating system provided in this implementation, its material formula is shown in Table 2.
[0051] Table 2 Example 1 material formula
[0052]
[0053] Among the above:
[0054] WB3002 water-based epoxy resin, produced by Dow Chemical;
[0055] Disperbx 080 wetting and dispersing agent, produced by Sipson Chemical;
[0056] H103B water-based epoxy curing agent, produced by Shanghai Hanzhong Chemical;
[0057] 810 defoamer, produced by Tego;
[0058] DF-S06 water-based fluororesin, produced by Dongfu Chemical;
[0059] BYK192 dispersant, produced by BYK Chemicals;
[0060] LA451 wetting agent, produced by Aohan Chemical;
[0061] 2655 curing agent, produced by Bayer Chemical;
[0062] E670 water-based fluororesin, produced by Huatong Rich;
[0063] SN660T thickener, produced by Nopco;
[0064] DMAE neutralizer, produced by Hemings;
[0065] FS444 leveling agent, produced by Hemings;
[00...
Embodiment 2
[0082] The water-based high weather resistance fair-faced concrete protective coating system provided in this example has a material formula shown in Table 4.
[0083] Table 4 Example 2 material formula
[0084]
[0085] The product preparation method and construction process of a water-based high weather resistance fair-faced concrete protective coating system described in this embodiment are the same as those in Embodiment 1.
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Abstract
The invention discloses a water-based high-weather-resistance fair-faced concrete protective coating system and a preparation method thereof, and belongs to the technical field of building materials.The protective coating system is a composite coating system of a water-borne epoxy resin cured coating, a water-borne fluorocarbon resin cured coating, a water-borne fluorocarbon resin cured coating containing color paste and a water-borne fluorocarbon resin cured coating with high fluorine content. The protective coating system is simple in construction process, green and environment-friendly; the excellent performances of strong bonding force, good corrosion resistance, good weather resistance, long service life and the like are realized. According to the fair-faced concrete protective coating, the intrinsic aesthetic feeling of fair-faced concrete can be reserved, the protective effects of super-strong weather resistance, super-strong bonding force and no peeling or falling after long-term use can be provided, the service life of a concrete structure is further prolonged, and the fair-faced concrete protective coating is suitable for long-acting protection of various fair-faced concrete buildings.
Description
technical field [0001] The invention discloses a protective coating, in particular to a water-based high-weather-resistant fair-faced concrete protective coating system and a preparation method thereof, and relates to the technical field of building materials. Background technique [0002] Fair-faced concrete is the most advanced form of expression in concrete. It shows its charm in more and more buildings with its elegant plain face, and has a simple, natural and calm artistic effect. Fair-faced concrete has been popularized from cast-in-place projects such as airports, roads and bridges to the field of civil prefabricated buildings. With the increasing application of fair-faced concrete, the problem of surface protection has become more and more prominent. [0003] Fair-faced concrete directly uses the natural surface effect of concrete as a finish, and there is no longer any coating, tiles, stones and other materials. Therefore, the protection of fair-faced concrete has t...
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