CN217998471U - Anticorrosive fireproof composite coating structure for sealing coating - Google Patents
Anticorrosive fireproof composite coating structure for sealing coating Download PDFInfo
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- CN217998471U CN217998471U CN202222102796.4U CN202222102796U CN217998471U CN 217998471 U CN217998471 U CN 217998471U CN 202222102796 U CN202222102796 U CN 202222102796U CN 217998471 U CN217998471 U CN 217998471U
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Abstract
The utility model discloses an anticorrosive fire composite coating structure of sealed application is equipped with anticorrosive fire composite coating structure on building engineering structure base member surface, anticorrosive fire composite coating structure is equipped with MS sealed gum coating, flexible finish paint coating, flexible epoxy coating, fire prevention coating, finish paint coating from inside to outside in proper order. The utility model provides a fire prevention coating and the supporting application technical problem of MS sealed gum coating, be favorable to fire prevention coating and MS sealed gum coating as composite construction in the engineering fire prevention, anticorrosive and sealed protection technology's such as reliable application, full play fire prevention coating and MS sealed gum coating respective excellent performance, anti vibration and fire resistance test show that its associativity is good, fire-resistant excellent, the reliability and the extensive suitability of usable its structure of whole composite coating system, can be used for the surface sealing anticorrosive fire protection of multiple structure.
Description
Technical Field
The utility model relates to an engineering surface anticorrosion fire prevention technique, concretely relates to anticorrosive fire prevention composite coating structure of sealed application belongs to surface engineering anticorrosion fire prevention technical field.
Background
In order to prevent life and property loss caused by fire accidents, civil buildings, industrial buildings and public works generally need to be subjected to anticorrosion and fireproof treatment on structural matrixes of constructional engineering, so that the development of fire is prevented, the fire resistance limit of the constructional structures is ensured, and enough time is provided for evacuation of related personnel and fire fighting operation.
For example, CN216341739U discloses a sound insulation type fire door, the outer side of the fire door main body is provided with an anticorrosive paint, a fire-proof paint (ultra-thin steel structure fire-proof paint) and a fire-proof finish paint. CN214183913U discloses a building steel structure hot spraying anticorrosion fire prevention composite coating structure, includes: thermal spraying metal coating, water paint coating, water fire-proof paint coating and water weather-proof finish paint coating. CN108149875A is a steel structure fireproof decoration integrated protection system with strong assembly durability, the outer side of a steel structure is coated with a plate enclosure structure, and embedding seams between the plate enclosure structures are sequentially expanded by a sealing strip and silicone sealant from inside to outside for filling protection. CN212078485U discloses an outer wall coating convenient for laminating construction, which comprises a fireproof coating layer, a first waterproof coating layer, a reinforcing coating layer, a second waterproof coating layer and a cement layer, wherein the fireproof coating layer is a non-intumescent fireproof coating, a prestressed concrete floor fireproof coating or an inorganic fireproof coating, and the fireproof coating layer has good flexibility, impact strength, adhesive force, drying time and water resistance and can reduce the flammability of the surface of a coated material. The fire-proof technology mainly treats smooth and continuous structural matrixes of the building engineering, and corrosion-proof and fire-proof treatment is not designed for structural joints, expansion joints, gaps and the like.
Various lap joints, expansion joints, pores or gaps and the like in structural engineering are weak links for corrosion resistance and fire resistance, and a lot of corrosion failures and insufficient fire resistance are caused by the defects. CN105113651A discloses a steel column protection structure and a mortar plastering protection method thereof, after the surface of a steel column is subjected to rust-proof treatment, positioning ribs are spot-welded, a thick fireproof coating layer is sprayed, polypropylene emulsion is swiped in a rolling manner, a steel wire mesh is arranged, a polymer cement mortar layer is coated, a face is pressed, corners are repaired, and maintenance is carried out, so that the quality problems of common column wrapping cracks, falling off and the like can be avoided; CN208934254U discloses an assembled steel skeleton special-shaped column connection structure, and the connection nodes of the structure are treated by concrete wrapping, so that the problems of fire prevention and corrosion prevention of the steel structures at the connection nodes are solved; CN1580386, CN113152280, CN208594481 and CN112982163A, CN216615495U successively disclose cable sealing anticorrosion fireproof technology, and no sealing anticorrosion fireproof treatment structure or technology is provided for important nodes such as cable and cable clamp joints, cable clamp longitudinal and transverse joints and the like in cable engineering.
The performance requirement and test method of fireproof blocking material (GA 161-1997) is used for blocking various openings formed when various penetrations such as cables, air pipes, oil pipes, air pipes and the like pass through the wall (warehouse) wall and floor (deck) plate and fireproof separation of cable bridges, has fireproof function and is convenient for replacement. The test thickness reached 25mm. CN104893642 discloses a high-strength flame-retardant polyurethane sealant, which has flame retardance FV-0 and tensile modulus more than 3 MPa; CN101058513 provides a water-based high-temperature-resistant fireproof adhesive which has strong long-time adhesive force at high temperature, does not fall off in flame, has good thermal shock resistance, low volume weight, short surface drying time, low thermal conductivity, good weather resistance and strong corrosion resistance, is used for bonding various fireproof plates and base materials such as steel, concrete members, wood and the like, but has the bonding strength (Mpa) of only about 0.65 and also has no displacement and expansion capability.
CN102277125 discloses a flame-retardant polysulfide sealant, the oxygen index is more than 34 percent and reaches FV-0 standard (GB/T24267-2009 flame-retardant sealant for construction); CN103333653 discloses a flame-retardant one-component silane modified polyether sealant, and a horizontal method and a vertical method for measuring the combustion performance of plastics (GB/T2408-2008) reach V0 and HB levels; CN103160239B, CN113897171 respectively develops a high-displacement flame-retardant fireproof silicone sealant, the flame retardance reaches V-0 grade, and the fireproof performance meets A3 grade according to GB 23864-2009 fireproof plugging material tests. CN113698905 discloses a flame retardant silane modified polyether sealant containing DOPO, the flame retardant of MS sealant can reach V1-V0 grade, the tensile strength is 0.8-4.8MPa, and the elongation at break is 180-350 percent. CN102504751 adopts a polyurethane prepolymer with flame retardant effect, a phosphonate flame retardant plasticizer with flame retardant and plasticizing dual effects and a flame retardant synergist to prepare a flame retardant polyurethane sealant, which has good flame retardant property (FV-0) while ensuring the physical and mechanical properties and the adhesive property of the polyurethane sealant. Compared with the prior art, the flame retardant sealant material has the flame retardant performance reaching V-0 and FV-0 and cannot be independently used for fireproof sealing.
The thin and ultra-thin steel structure fireproof paint is proved to have excellent and reliable fireproof performance by long-term application, is widely used for fireproof protection of steel structure engineering, but is difficult to independently treat special parts such as seams and the like, and is generally coated with the fireproof paint after putty is filled, and as the putty does not have good bonding, stretching and displacement resistance, the putty in the gap part is easy to rapidly crack due to shrinkage, displacement and the like, so that the surface fireproof paint coating cracks and even breaks away, the engineering decoration is damaged, and great hidden danger is caused to fire prevention. As the silicone sealant has no coating property, and the polyurethane, polysulfide and the like have the defects of weather resistance and environmental protection, the MS sealant with good adhesion and coatable surface is actively used for sealing and corrosion protection of structural matrixes of constructional engineering, and good effects are achieved by practice at home and abroad.
But MS coatability also has obvious defects, and the prior research and engineering application find that the MS and coating of some coatings have obvious compatibility problems, and the test finds that the thin ultra-thin steel structure fireproof coating is coated on the surface of the MS sealant coating and has obvious compatibility problems, namely, the fireproof coating has extremely poor adhesive force with the MS sealant coating and is easy to peel off; and secondly, the fireproof auxiliary agent in the fireproof paint coating quickly diffuses into the MS sealant coating to directly influence the fireproof performance of the MS sealant coating.
Disclosure of Invention
To prior art problem, the sealed durable advantage of bonding of make full use of MS sealant and the reliable fire prevention function of fire retardant coating realize guaranteeing especially to engineering building engineering structure base member some special operating mode surfaces possess like all kinds of gaps, connection face, unsmooth face etc. with the unanimous anticorrosive fire-resistant ability of whole building engineering structure base member, the utility model provides a structure science, collocation are reasonable, anticorrosive fire-resistant durable reliable anticorrosive fire prevention composite coating structure has solved above-mentioned prior art problem, and this composite coating structural design is succinct, and supporting is extensive.
The utility model discloses specific technical scheme as follows: the utility model provides a sealed application's anticorrosive fire prevention composite coating structure, includes the building engineering structure base member, is equipped with anticorrosive fire prevention composite coating structure on the building engineering structure base member surface, anticorrosive fire prevention composite coating structure is equipped with MS sealed gum coating, flexible finish paint coating, flexible epoxy coating, fire prevention coating, finish paint coating from inside to outside in proper order.
As a preferred scheme of anticorrosive fire prevention composite coating structure of sealed application: the thickness of the MS sealant coating is not less than 2mm; the thickness of the flexible finish paint coating is 30-50 mu m; the thickness of the flexible epoxy coating is 40-60 mu m; the thickness of the fireproof coating is 2-7 mm; the thickness of the finish coat is 30-80 μm.
As a preferred scheme of anticorrosive fire prevention composite coating structure of sealed application: the structural base body of the building engineering is a steel structure, a suspension bridge sling or an assembly type building.
As a preferred scheme of anticorrosive fire prevention composite coating structure of sealed application: when the anticorrosion fireproof composite coating structure is used for filling joints between adjacent fabricated buildings, the thicknesses of the MS sealant coating, the flexible finish paint coating and the flexible epoxy paint coating are required to fill the joints between the adjacent fabricated buildings.
As a preferred scheme of anticorrosive fire prevention composite coating structure of sealed application: the finish coat is a finish coat with a thickness of 30-50 μm.
As a preferred scheme of anticorrosive fire prevention composite coating structure of sealed application: the finish coat is a composite finish coat, and the composite finish coat sequentially comprises a finish coat and a weather-resistant finish coat from inside to outside;
the thickness of the finish coat is 30-40 μm;
the thickness of the weather-resistant finish coat is 30-40 mu m.
The flexible finish paint coating adopts flexible finish paint, such as flexible fluorocarbon finish paint, flexible polyurethane finish paint and the like, and can be solvent-based or water-based.
The flexible epoxy coating adopts flexible epoxy coating, can be solvent-based flexible epoxy coating, and can also be water-based flexible epoxy coating.
The fireproof coating is a steel structure fireproof coating, a concrete structure fireproof coating and a flexible fireproof coating in the prior art, and is optimized according to the current technical specifications of the state or industry according to the structure type (steel structure, concrete structure, rope structure and the like).
The beneficial effects of the utility model are that:
to the non-supporting problem that exists between current fire prevention coating and the sealed gum coating of MS, the utility model discloses utilize flexible finish paint coating and flexible epoxy coating as the transition structure between fire prevention coating and the sealed gum coating of MS, the supporting application technical problem of fire prevention coating and the sealed gum coating of MS has been solved, be favorable to fire prevention coating and the sealed gum coating of MS as composite construction in engineering fire prevention, anticorrosive and the sealed protection technology's such as sealing reliable application, give full play to fire prevention coating and the sealed gum coating of MS respective excellent performance, and the whole composite coating system can utilize the reliability and the extensive suitability of its structure, can be used for the surface sealing anticorrosive fire protection of multiple structure, the dependable performance, it is lasting, wide application prospect has.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of example 2;
FIG. 3 is a schematic structural view of example 3;
FIG. 4 is a schematic view of the structure of the topcoat coating.
In the figure: 1. a structural substrate of a construction project; 2. MS sealant coating; 3. flexible finish paint coating; 4. a flexible epoxy coating; 5. a fire retardant coating; 6. a finish coat layer; 6-1, coating a fireproof paint finish coat; 6-2, and coating a weather-resistant finish coat.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
As shown in fig. 1.
An anticorrosion fireproof composite coating structure for sealing and coating a steel column constructional engineering structure matrix after primary anticorrosion treatment, namely the surface of a steel structure is subjected to rust removal and cleaning treatment;
after ensuring that the structural matrix 1 of the building engineering is clean, blade-coating a layer of MS sealant on the surface of the structural matrix 1 to form an MS sealant coating 2, wherein the thickness of the MS sealant coating is controlled to be 2-3 mm;
after the MS sealant coating 2 is vulcanized and dried, coating 1 path of flexible fluorocarbon finish paint on the surface of the MS sealant coating to form a flexible finish paint coating 3 with the thickness of 30-40 mu m; after the flexible finish paint coating 3 is dried, coating 1 path of flexible epoxy paint on the surface of the flexible finish paint coating to form a flexible epoxy paint coating 4 with the thickness of 40-60 mu m;
after the flexible epoxy paint coating 4 is dried, coating 4-7 lines of fire-retardant paint for the ultrathin steel structure on the surface of the flexible epoxy paint coating, wherein the thickness of the fire-retardant paint coating is 2-3 mm, and forming a fire-retardant paint coating 5;
coating 1 path of fire-retardant coating finish paint matched with the fire-retardant coating at the interval time or after the fire-retardant coating 5 for the ultra-thin steel structure is dried, wherein the thickness of the coating of the matched fire-retardant coating finish paint is 30-50 mu m, and forming a finish coating 6.
The utility model discloses the structure can be used to the anticorrosive fire prevention composite coating structure of the sealed application of building engineering structure base members such as indoor steel column, connecting rod, purlin, through the anti vibration test that burns promptly, whole coating structure not only self combines reliably, also combines reliably with the steel matrix, and under the hydrocarbon scene of a fire condition, steel matrix surface temperature rises to 400 ℃ refractory time and surpasses 3h.
Example 2
As shown in fig. 2 and 4
A sealing coated anticorrosion and fireproof composite coating structure for the structural base body of joint building engineering is disclosed, which can be used to clean the surface of assembled building or clean and close the joint between assembled buildings.
Adopt for assembly type building seam MS sealed glue beat glue fill to the seam and the blade coating is leveled, guarantee that the colloid is closely knit and combines closely with the application of building engineering structure base member 1, and reduce even prevent that bubble, space exist, form MS sealed glue coating 2, its thickness is not less than 2mm, and certain space is reserved on MS sealed glue coating 2 surface, guarantee follow-up formation flexible epoxy coating 4 after, flexible epoxy coating 4 surface is close the level unanimity with building engineering structure base member 1.
After the MS sealant coating 2 is vulcanized and dried, coating 1 path of flexible polyurethane finish paint on the surface of the MS sealant coating to form a flexible finish paint coating 3 with the thickness of 30-40 mu m; after the flexible finish paint coating 3 is dried, coating 1 path of flexible epoxy paint on the surface of the flexible finish paint coating to form a flexible epoxy paint coating 4 with the thickness of 40-60 mu m; at the moment, the surface of the flexible epoxy coating 4 is ensured to be in horizontal transition with the structural matrix 1 of the architectural engineering as far as possible, and the appearance is smooth and consistent.
After the flexible epoxy paint coating 4 is dried, coating 3-5 thin fireproof paints on the surface of the flexible epoxy paint coating, wherein the thickness of the flexible epoxy paint coating is 6-7 mm, and forming a fireproof paint coating 5;
coating 1 path of fire-retardant paint finish matched with the thin fire-retardant paint at an interval time or after the fire-retardant paint coating 5 is dried completely according to the requirements of the thin fire-retardant paint, wherein the thickness of the coating of the fire-retardant paint finish matched with the thin fire-retardant paint is 30-40 mu m, and forming a fire-retardant paint finish 6-1; after the fireproof paint finish coat 6-1 is dried actually, coating 1 path of flexible polyurethane finish paint on the surface of the fireproof paint finish coat, wherein the thickness of the flexible polyurethane finish paint is 30-40 mu m, and forming a weather-resistant finish paint coat 6-2; the fire-proof finish coat 6-1 and the weather-proof finish coat 6-2 together form a finish coat 6, and the total thickness of the finish coat 6 is about 60-80 mu m.
Example 3
See fig. 3 and 4.
Anticorrosive fire prevention composite coating structure to the sealed application of cable, the similar building engineering structure base member of wire rope, like the suspension bridge hoist cable, the hoist cable generally adopts galvanized steel wire winding to form, also has the hoist cable surface to carry out anticorrosive application processing, above-mentioned galvanized steel wire surface or galvanized steel wire anticorrosive application processing rear surface form promptly building engineering structure base member 1.
The MS sealant for bridge cable engineering sealing is adopted to be applied to the structural matrix 1 of the constructional engineering in a gluing or scraping mode, the scraping and coating is smooth, the smoothness and the uniform thickness of the surface of the MS sealing adhesive layer are ensured, the colloid is ensured to be compact and closely combined with the structural matrix 1 of the constructional engineering, the existence of bubbles of the adhesive layer, gaps between the adhesive layer and the structural matrix 1 of the constructional engineering and the like is reduced or even prevented, and the MS sealant coating 2 is formed, and the thickness of the MS sealant coating is not less than 2mm.
After the MS sealant coating 2 is vulcanized and dried, coating 1 path of flexible polyurethane finish paint on the surface of the MS sealant coating to form a flexible finish paint coating 3 with the thickness of 30-40 mu m; and after the flexible finish paint coating 3 is dried, coating 1 path of flexible epoxy paint on the surface of the flexible finish paint coating to form a flexible epoxy paint coating 4 with the thickness of 40-60 mu m.
After the flexible epoxy paint coating 4 is dried, coating 3-5 paths of ultrathin fireproof paint for a steel structure on the surface of the flexible epoxy paint coating, wherein the thickness of the ultrathin fireproof paint is 2-3 mm, and forming a fireproof paint coating 5;
after the fireproof paint coating 5 is dried completely, coating 1 path of fireproof paint finish paint matched with the fireproof paint coating on the surface of the fireproof paint coating, wherein the thickness of the coating of the matched fireproof paint finish paint is 30-40 mu m, and forming a fireproof paint finish paint coating 6-1; after the fireproof paint finish coat 6-1 is dried, coating 1 path of flexible fluorocarbon finish paint on the surface of the fireproof paint finish coat, wherein the thickness of the flexible fluorocarbon finish paint coating is 30-40 mu m, and forming a weather-resistant finish paint coating 6-2; the fire-proof paint finish coat 6-1 and the weather-resistant finish coat 6-2 jointly form a finish coat 6, and the total thickness of the finish coat 6 is about 60-80 mu m.
In the embodiment 3, the weather-resistant finish coat 6-2 is added on the basis of the fireproof paint finish coat 6-1, so that the problem that the weather resistance and the durability of the outdoor steel building engineering structural matrix fireproof anticorrosive coat system are insufficient (for example, the outdoor service life is less than 10 years) is solved, and in the embodiment, the fire-resistant time of the surface temperature of the steel matrix rising to 400 ℃ is more than 1.5 hours under the condition of a hydrocarbon fire scene.
Claims (6)
1. The utility model provides a sealed anticorrosive fire prevention composite coating structure of application, includes building engineering structure base member (1), its characterized in that: the surface of a structural matrix (1) of the building engineering is provided with an anticorrosion fireproof composite coating structure, and the anticorrosion fireproof composite coating structure is sequentially provided with an MS sealant coating (2), a flexible finish paint coating (3), a flexible epoxy paint coating (4), a fireproof paint coating (5) and a finish paint coating (6) from inside to outside.
2. The seal-coated corrosion-resistant and fire-resistant composite coating structure according to claim 1, wherein: the thickness of the MS sealant coating (2) is not less than 2mm; the thickness of the flexible finish paint coating (3) is 30-50 mu m; the thickness of the flexible epoxy coating (4) is 40-60 mu m; the thickness of the fireproof paint coating (5) is 2 mm-7 mm; the thickness of the finish coat (6) is 30-80 μm.
3. The seal-coated corrosion-resistant and fire-resistant composite coating structure according to claim 1, wherein: the constructional engineering structural base body (1) is a steel structure, a suspension bridge sling or an assembly type building.
4. The seal-coated corrosion-resistant and fire-resistant composite coating structure according to claim 3, wherein: when the anticorrosion fireproof composite coating structure is used for filling joints between adjacent fabricated buildings, the thicknesses of the MS sealant coating (2), the flexible finish paint coating (3) and the flexible epoxy paint coating (4) are required to fill the joints between the adjacent fabricated buildings.
5. The seal-coated corrosion-resistant and fire-resistant composite coating structure according to claim 1, wherein: the finish coat (6) is a finish coat with the thickness of 30-50 μm.
6. The seal-coated corrosion-resistant and fire-resistant composite coating structure according to claim 1, wherein: the finish coat (6) is a composite finish coat, and the composite finish coat sequentially comprises a fireproof paint finish coat (6-1) and a weather-resistant finish coat (6-2) from inside to outside;
the thickness of the fireproof paint finish coat (6-1) is 30-40 mu m;
the thickness of the weather-resistant finish coat (6-2) is 30-40 μm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222102796.4U CN217998471U (en) | 2022-08-11 | 2022-08-11 | Anticorrosive fireproof composite coating structure for sealing coating |
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| CN202222102796.4U CN217998471U (en) | 2022-08-11 | 2022-08-11 | Anticorrosive fireproof composite coating structure for sealing coating |
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| CN217998471U true CN217998471U (en) | 2022-12-09 |
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| CN202222102796.4U Active CN217998471U (en) | 2022-08-11 | 2022-08-11 | Anticorrosive fireproof composite coating structure for sealing coating |
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