CN101671515B - Anticorrosive coating for concrete structure reinforcing bars and preparation method thereof - Google Patents
Anticorrosive coating for concrete structure reinforcing bars and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to an anticorrosive coating cured at the room temperature and used for concrete structure reinforcing bars and a preparation method thereof. The coating system comprises a priming paint and a finish paint, wherein the priming paint and the finish paint respectively comprise a component A and a component B which are used in a mixed manner; the component A in the priming paint comprises the following components in parts by weight: 1:10-30 parts of epoxy resin by weight, 2:5-15 parts of epoxy resin by weight, 30-55 parts of pigment and filler by weight, 0.5-1 part of additive by weight and 20-40 parts of solvent by weight; the component A in the finish paint comprises the following components in parts by weight: 1:10-30 parts of epoxy resin, 2:5-10 parts of epoxy resin,10-30 parts of pigment and filler by weight, 10-30 parts of glass flakes by weight, 0.2-1 part of additive by weight and 20-40 parts of solvent by weight; and the component B of the priming paint and the component B of the finish paint are the same and are at least one of fatty amine, aromatic amine and polyamide. The coating can be cured at the room temperature; the cured coating has good adhesion, impermeability, alkali resistance, salt fog resistance and wear resistance, and can effectively prevent the reinforcing bars in concrete from rusting and further prolongs the service life of the reinforcing bars.
Description
Technical field
The invention belongs to the protective system field, be specifically related to anticorrosive coating for concrete structure reinforcing bars of a kind of self-vulcanizing and preparation method thereof.
Background technology
Chlorion is one of most important reason of coastal concrete structure erosion destructive to the erosion of reinforcing bar.Because the porousness of concrete material, chlorion will constantly enter inside concrete, destroys the passive film of rebar surface, causes the corrosion and the crack on concrete of reinforcing bar.Be to solve the problem of steel bar corrosion in the skeleton construction, measure commonly used has the thickness that strengthens concrete cover, mixes admixture, galvanic protection in concrete, development of new coated reinforcement or coating reinforcing bar etc.The U.S., Canada and Europe more and widespread use in engineering to epoxy-coated reinforcement research, epoxy-coated reinforcement is considered to one of effective measure that prevent steel bar corrosion.But because the preparation epoxy-coated reinforcement need be solidified the epoxy powder electrostatic spraying to being preheating on 230 ℃ the reinforcing bar, requirement to temperature and environment cleanliness, make it be difficult to finish at the construction field (site) the making in early stage, this has not only significantly increased the use cost of reinforcing bar, and in transportation, loading and unloading, storage process, collide easily, scratch, cause paint film defect, directly influence the steel bar anti-corrosion quality.Chinese patent CN1687269A and CN1962779A disclose two kinds of steel bar anti-corrosion coating, coating all with Resins, epoxy as base-material, but coating all belongs to powder coating, need be not suitable for site operation in the temperature-curable more than 200 ℃.Patent CN101397476A discloses water paint special for steel bar anti-corrosion in a kind of concrete, and it adds reactive pigment, inhibiter, film coalescence aid etc. by the polyurethane acroleic acid copolymer emulsion and forms.Form under the mineral acid effect by reactive pigment and rust-stabilising pigment and to absorb the nitrogen base ionic group stablize iron rust iron rust is changed into useful stabilized protection course; and firmly attached to the metallic surface; stop the corrosion of reinforcing bar in the concrete, but the requirement of patent sinuousness when not mentioning coating whether the influence of reinforcing bar and concrete bonding intensity and coating being satisfied coated reinforcement and use bending.
Summary of the invention
Technical problem underlying to be solved by this invention is at the existing state of the art, protective system of a kind of self-vulcanizing that is applied to the concrete structure reinforcing bars surface and preparation method thereof is provided, mainly be to be the main base-material of coating with the bisphenol type epoxy, by aliphatic glycidyl ether type epoxy it is carried out blending and modifying, with amine as solidifying agent, make coating have excellent sticking power and snappiness, do not ftracture, do not come off behind the coating bar bending in ambient cure; By preferred glass scale material, and carry out surface modification, make to have excellent bonding strength between coated reinforcement and the concrete.
The objective of the invention is to be achieved through the following technical solutions:
1, proportioning
Anticorrosive coating for concrete structure reinforcing bars of the present invention is made up of priming paint, finish paint two portions, and priming paint and finish paint include first, second two-pack.The weight proportion of each component is in the priming paint first component: Resins, epoxy 1:10～30 weight parts, Resins, epoxy 2:5～15 weight parts, pigment, filler 30～55 weight parts, auxiliary agent 0.5～1 weight part, solvent 20～40 weight parts; The second component is at least a in aliphatic amide, aromatic amine, the polymeric amide.During use first, second two components are pressed 20: the mixed of (1～1.4) is even, and slaking can be used in 10～15 minutes.The weight proportion of each component is in the finish paint first component: Resins, epoxy 1:10～30 weight parts, Resins, epoxy 2:5～15 weight parts, pigment, filler 10～30 weight parts, glass flake 10～30 weight parts, auxiliary agent 0.2～1 weight part, solvent 20～40 weight parts; The second component is at least a in aliphatic amide, aromatic amine, the polymeric amide.During use first, second two components are pressed 20: the mixed of (1.1～1.5) is even, and slaking can be used in 10～15 minutes.
2, the preparation of coating
(1) preparation of priming paint
According to the proportioning of the described priming paint first of claim 1 component, with Resins, epoxy and solvent, treat that resin all after the dissolving, adds pigment, filler and auxiliary agent high speed dispersion, grinding, make priming paint first component.With each the component stirring at low speed in the priming paint second component, mix and promptly get priming paint second component.Priming paint first, second two components are pressed 20: the mixed of (1～1.4) is even, and slaking can be used in 10～15 minutes.
(2) preparation of finish paint
According to the proportioning of the described finish paint first of claim 1 component, with Resins, epoxy and solvent, treat that resin all after the dissolving, adds color stuffing, auxiliary agent high speed dispersion, grinding, add glass flake, low speed disperses, and makes finish paint first component.With each the component stirring at low speed in the finish paint second component, mix and promptly get finish paint second component.Finish paint first, second two components are pressed 20: the mixed of (1.1～1.5), slaking can be used in 10～15 minutes.
3, the application of steel bar anti-corrosion coating
Reinforcing bar is adopted pickling or derusting by sandblast and oxide skin, and quality reaches the Sa2.5 level, removes the impurity such as greasy dirt, dust of rebar surface.Handling clean reinforcing bar should in time varnish with lacquer.Coating can adopt brushing, roller coat, Airless spraying.Priming paint, finish paint first, second two components are mixed respectively, and slaking can be used in 10～15 minutes.According to the sequence construction of twice priming paint twice finish paint, total coating thickness is controlled at 180～300 μ m, and normal temperature condition can be coated with 1～2 road following every day.
The present invention has following characteristics:
1, compare with epoxide powder coating with coated reinforcement, the coating of producing by above-mentioned prescription and preparation method can have excellent sticking power and snappiness in ambient cure, does not ftracture, does not come off, the antiseptic property excellence behind the coating bar bending.
2, by preferred glass scale material, and carry out surface modification, add in the finish paint, make to have excellent bonding strength between coated reinforcement and the concrete.
3, the preparation method of coating is simple, easy handling, the cost performance height, have good suitability and site operation, coating has excellent hardness, wear resistance and shock resistance, improved the resisting breakage ability in accumulating and the construction process, the protection that can be widely used in coastal, islands and reefs and use reinforcing bar in the Snow Agent area concrete structure.
In a word, concrete technical scheme of the present invention is:
1, a kind of anticorrosive coating for concrete structure reinforcing bars of self-vulcanizing is characterized in that this coating is made up of priming paint, finish paint two portions, and priming paint and finish paint include first, second two-pack.The weight proportion of each component is in the priming paint first component: Resins, epoxy 1: 10～30 weight parts, Resins, epoxy 2: 5～15 weight parts, pigment, filler 30～55 weight parts, auxiliary agent 0.5～1 weight part, solvent 20～40 weight parts; The second component is at least a in aliphatic amide, aromatic amine, the polymeric amide.During use priming paint first, second two components are pressed 20: the mixed of (1～1.4) is even, and slaking was used after 10～15 minutes.The weight proportion of each component is in the finish paint first component: Resins, epoxy 1: 10～30 weight parts, Resins, epoxy 2: 5～15 weight parts, pigment, filler 10～30 weight parts, glass flake 10～30 weight parts, auxiliary agent 0.2～1 weight part, solvent 20～40 weight parts.The second component is at least a in aliphatic amide, aromatic amine, the polymeric amide.During use finish paint first, second two components are pressed 20: the mixed of (1.1～1.5) is even, and slaking was used after 10～15 minutes.
2, described anticorrosive coating for concrete structure reinforcing bars is characterized in that Resins, epoxy 1 is selected from the Resins, epoxy between the epoxy equivalent (weight) 300～1000.
3, described anticorrosive coating for concrete structure reinforcing bars is characterized in that Resins, epoxy 2 is one or more the mixtures in bisphenol A diglycidyl ether, tetrabromo-bisphenol diglycidylether, Hydrogenated Bisphenol A diglycidylether, the Bisphenol F diglycidylether.
4, described anticorrosive coating for concrete structure reinforcing bars is characterized in that pigment, filler in the described priming paint is at least three kinds in iron oxide red, iron mica, aluminium triphosphate, ferrotitanium powder, zinc phosphate, mica powder, process white, iron oxide red, the talcum powder.
5, described anticorrosive coating for concrete structure reinforcing bars is characterized in that glass flake particle diameter in the described finish paint between 60～200 orders, carries out pre-treatment with coupling agent earlier before adding coating; Coupling agent is a kind of in monoalkoxy type titanic acid ester, chelating titanate, epoxy radicals silicone hydride, hydrosulphonyl silane, the aminosilane.
6, described anticorrosive coating for concrete structure reinforcing bars is characterized in that described auxiliary agent is one or more the mixture in dispersion agent, flow agent, the antisettling agent.
7, described anticorrosive coating for concrete structure reinforcing bars is characterized in that described solvent is one or more a mixture of toluene, dimethylbenzene, propyl carbinol, isopropylcarbinol, acetone, methyl iso-butyl ketone (MIBK), butanone.
8, described anticorrosive coating for concrete structure reinforcing bars is characterized in that technical process may further comprise the steps:
(1) preparation of priming paint
According to the proportioning of the described priming paint first of claim 1 component, with Resins, epoxy and solvent, treat that resin all after the dissolving, adds pigment, filler and auxiliary agent high speed dispersion, grinding, make priming paint first component.Priming paint first, second two components are pressed 20: the mixed of (1～1.4) is even, and slaking can be used in 10～15 minutes.
(2) preparation of finish paint
According to the proportioning of the described finish paint first of claim 1 component, with Resins, epoxy and solvent, treat that resin all after the dissolving, adds pigment, filler and auxiliary agent high speed dispersion, grinding, add glass flake, low speed disperses, and makes finish paint first component.Priming paint first, second two components are pressed 20: the mixed of (1.1～1.5) is even, and slaking can be used in 10～15 minutes.
Embodiment
Embodiment 1:
The technical process and the processing parameter of present embodiment are as follows:
Batching
Priming paint first component prescription (parts by weight) is as follows:
1 22 parts of Resins, epoxy
25 parts of Resins, epoxy
15 parts of iron oxide reds
10 parts of iron micas
8 parts of zinc phosphates
5 parts of process whites
8 parts on mica
1 part of antisettling agent
Solvent (toluene: propyl carbinol=4: 1) 26 parts
Priming paint second component prescription (parts by weight): 100 parts of aromatic amines
Finish paint first component prescription (parts by weight) is as follows:
1 22 parts of Resins, epoxy
25 parts of Resins, epoxy
10 parts of iron oxide reds
25 parts of glass flakes
5 parts of process whites
6 parts on mica
1 part of antisettling agent
Solvent (toluene: propyl carbinol=4: 1) 26 parts
Finish paint second component prescription (parts by weight): 100 parts of aromatic amines
2, the preparation of coating
(1) preparation of priming paint
According to the proportioning of priming paint first component, Resins, epoxy is mixed with toluene, propyl carbinol, treat that resin all after the dissolving, adds iron oxide red, iron mica, zinc phosphate, process white, mica, antisettling agent high speed dispersion, grinding, make priming paint first component.Priming paint first, second component is even by 20: 1.4 mixed, and slaking was used after 10 minutes.The products obtained therefrom quality examination is the result meet the technical requirements.
(2) preparation of finish paint
According to the proportioning of finish paint first component, Resins, epoxy is mixed with toluene, propyl carbinol, treat that resin all after the dissolving, adds iron oxide red, process white, mica, antisettling agent high speed dispersion, grinding, add glass flake, low speed disperses, and makes finish paint first component.Finish paint first, second two components are even by 20: 1.5 mixed, and slaking was used after 10 minutes.The products obtained therefrom quality examination is the result meet the technical requirements.
3, coating method
The present invention is made up of priming paint, finish paint two portions, before the coating priming paint two components is pressed 20: 1.4, and finish paint two components are even by 20: 1.5 mixed, and slaking is coated on the rebar surface of derusting by sandblast and oxide skin after 10 minutes.Primer painting overpainting again after 12 hours.Coating process adopts brushes.According to the sequence construction of twice priming paint twice finish paint, total coating thickness 230 μ m.
The technical indicator of anticorrosive coating for concrete structure reinforcing bars
Embodiment 2:
The technical process and the processing parameter of present embodiment are as follows:
Batching
Priming paint first component prescription (parts by weight) is as follows:
1 20 parts of Resins, epoxy
27 parts of Resins, epoxy
10 parts of iron micas
8 parts of aluminium triphosphates
10 parts of talcum powder
7 parts of process whites
9 parts on mica
0.5 part of flow agent
0.5 part of antisettling agent
Solvent (toluene: propyl carbinol=7: 3) 28 parts
Priming paint second component prescription (parts by weight) is as follows:
60 parts of aliphatic amides
40 parts of aromatic amines
Finish paint first component prescription (parts by weight) is as follows:
1 20 parts of Resins, epoxy
27 parts of Resins, epoxy
8 parts of iron oxide reds
5 parts of iron micas
22 parts of glass flakes
5 parts of process whites
5 parts on mica
0.5 part of flow agent
0.5 part of antisettling agent
Solvent (toluene: propyl carbinol=7: 3) 27 parts
Finish paint second component prescription (parts by weight) is as follows:
60 parts of aliphatic amides
40 parts of aromatic amines
2, the preparation of coating
(1) preparation of priming paint
Proportioning according to priming paint first component, with Resins, epoxy and solvent, after treating that resin all dissolves, add iron mica, aluminium triphosphate, talcum powder, process white, mica, flow agent, antisettling agent high speed dispersion, grinding, make priming paint first component.With aliphatic amide in the priming paint second component and aromatic amine stirring at low speed, mix and promptly get priming paint second component.Priming paint first, second component is even by 20: 1.2 mixed, and slaking was used after 15 minutes.The products obtained therefrom quality examination is the result meet the technical requirements.
(2) preparation of finish paint
According to the proportioning of finish paint first component,, treat that resin is all after the dissolving with Resins, epoxy and solvent, add iron oxide red, iron mica, process white, mica, flow agent, antisettling agent high speed dispersion, grinding, add glass flake, low speed disperses, and makes finish paint first component.With aliphatic amide in the finish paint second component and aromatic amine stirring at low speed, mix and promptly get finish paint second component.Finish paint first, second two components are even by 20: 1.2 mixed, and slaking can be used in 15 minutes.The products obtained therefrom quality examination is the result meet the technical requirements.
3, coating method
The present invention is made up of priming paint, finish paint two portions, and all the mixed by 20: 1.2 is even with priming paint, finish paint two components before the coating, and slaking is coated on the rebar surface of acid pickling and rust removing and oxide skin after 15 minutes.Primer painting overpainting again after 12 hours.Coating process adopts brushes.According to the sequence construction of twice priming paint twice finish paint, total coating thickness 240 μ m.
Embodiment 3:
The technical process and the processing parameter of present embodiment are as follows:
Batching
Priming paint first component prescription (parts by weight) is as follows:
1 19 parts of Resins, epoxy
24 parts of Resins, epoxy
7 parts of iron micas
6 parts of aluminium triphosphates
12 parts in ferrotitanium powder
10 parts of talcum powder
3 parts of process whites
8 parts on mica
0.5 part of dispersion agent
0.5 part of anti-sedimentation
Solvent (toluene: butanone: propyl carbinol=2: 6: 2) 30 parts
Priming paint second component prescription (parts by weight): 100 parts of aliphatic amides
Finish paint first component prescription (parts by weight) is as follows:
1 19 parts of Resins, epoxy
25 parts of Resins, epoxy
8 parts of iron oxide reds
5 parts of iron micas
24 parts of glass flakes
5 parts of process whites
5 parts on mica
0.5 part of flow agent
0.5 part of antisettling agent
Solvent (toluene: butanone: propyl carbinol=2: 6: 2) 28 parts
Finish paint second component prescription (parts by weight): 100 parts of aliphatic amides
2, the preparation of coating
(1) preparation of priming paint
Proportioning according to priming paint first component, Resins, epoxy is mixed with toluene, butanone, propyl carbinol, after treating that resin all dissolves, add iron mica, aluminium triphosphate, ferrotitanium powder, talcum powder, process white, mica, dispersion agent, antisettling agent high speed dispersion, grinding, make priming paint first component.Priming paint first, second component is even by 20: 1 mixed, and slaking was used after 10 minutes.The products obtained therefrom quality examination is the result meet the technical requirements.
(2) preparation of finish paint
Proportioning according to finish paint first component, Resins, epoxy is mixed with toluene, butanone, propyl carbinol, after treating that resin all dissolves, add iron oxide red, iron mica process white, mica, flow agent, antisettling agent high speed dispersion, grinding, add glass flake, low speed disperses, and makes finish paint first component.Finish paint first, second two components are even by 20: 1.1 mixed, and slaking was used after 10 minutes.The products obtained therefrom quality examination is the result meet the technical requirements.
Coating method
The present invention is made up of priming paint, finish paint two portions, before the coating priming paint two components is pressed 20: 1, and finish paint two components are even by 20: 1.1 mixed, and slaking is coated on the rebar surface of acid pickling and rust removing and oxide skin after 10 minutes.Primer painting overpainting again after 14 hours.Coating process adopts brushes.According to the sequence construction of twice priming paint twice finish paint, total coating thickness 200 μ m.
Embodiment 4:
The technical process and the processing parameter of present embodiment are as follows:
1, batching
Priming paint first component prescription (parts by weight) is as follows:
1 19 parts of Resins, epoxy
27 parts of Resins, epoxy
10 parts of iron oxide reds
4 parts of zinc phosphates
4 parts of aluminium triphosphates
10 parts of talcum powder
6 parts of process whites
9 parts on mica
0.5 part of flow agent
0.5 part of antisettling agent
Solvent (toluene: dimethylbenzene: isopropylcarbinol=7: 1: 2) 30 parts
Priming paint second component prescription (parts by weight) is as follows:
50 parts of aliphatic amides
50 parts of polymeric amide
Finish paint first component prescription (parts by weight) is as follows:
1 19 parts of Resins, epoxy
27 parts of Resins, epoxy
5 parts of iron oxide reds
5 parts of iron micas
22 parts of glass flakes
4 parts of talcum powder
5 parts of process whites
5 parts on mica
0.5 part of flow agent
0.5 part of antisettling agent
Solvent (toluene: dimethylbenzene: isopropylcarbinol=7: 1: 2) 27 parts
Finish paint second component prescription (parts by weight) is as follows:
50 parts of aliphatic amides
50 parts of polymeric amide
2, the preparation of coating
(1) preparation of priming paint
Proportioning according to priming paint first component, Resins, epoxy is mixed with toluene, dimethylbenzene, isopropylcarbinol, after treating that resin all dissolves, add iron oxide red, zinc phosphate, aluminium triphosphate, talcum powder, process white, mica, flow agent, antisettling agent high speed dispersion, grinding, make priming paint first component.With aliphatic amide in the priming paint second component and polymeric amide stirring at low speed, mix and promptly get priming paint second component.Priming paint first, second component is even by 20: 1.2 mixed, and slaking was used after 15 minutes.
The products obtained therefrom quality examination is the result meet the technical requirements.
(2) preparation of finish paint
According to the proportioning of finish paint first component,, treat that resin is all after the dissolving with Resins, epoxy and solvent, add iron oxide red, iron mica, talcum powder, process white, mica, flow agent, antisettling agent high speed dispersion, grinding, add glass flake, low speed disperses, and makes finish paint first component.With aliphatic amide in the finish paint second component and polymeric amide stirring at low speed, mix and promptly get finish paint second component.Finish paint first, second two components are even by 20: 1.2 mixed, and slaking was used after 15 minutes.The products obtained therefrom quality examination is the result meet the technical requirements.
3, coating method
The present invention is made up of priming paint, finish paint two portions, and all the mixed by 20: 1.2 is even with priming paint, finish paint two components before the coating, and slaking is coated on the rebar surface of acid pickling and rust removing and oxide skin after 15 minutes.Primer painting overpainting again after 12 hours.Coating process adopts roller coat.According to the sequence construction of twice priming paint twice finish paint, total coating thickness 250 μ m.
Embodiment 5:
The technical process and the processing parameter of present embodiment are as follows:
1, batching
Priming paint first component prescription (parts by weight) is as follows:
1 22 parts of Resins, epoxy
26 parts of Resins, epoxy
10 parts of iron micas
8 parts of aluminium triphosphates
8 parts of talcum powder
8 parts of process whites
9 parts on mica
0.5 part of flow agent
0.5 part of antisettling agent
Solvent (toluene: methyl iso-butyl ketone (MIBK): propyl carbinol=2: 7: 1) 28 parts
Priming paint second component prescription (parts by weight) is as follows:
25 parts of aliphatic amides
25 parts of aromatic amines
50 parts of polymeric amide
Finish paint first component prescription (parts by weight) is as follows:
1 22 parts of Resins, epoxy
26 parts of Resins, epoxy
3 parts of iron oxide reds
5 parts of iron micas
25 parts of glass flakes
5 parts of process whites
5 parts on mica
0.5 part of flow agent
0.5 part of antisettling agent
Solvent (toluene: methyl iso-butyl ketone (MIBK): propyl carbinol=2: 7: 1) 28 parts
Finish paint second component prescription (parts by weight) is as follows:
25 parts of aliphatic amides
25 parts of aromatic amines
50 parts of polymeric amide
2, the preparation of coating
(1) preparation of priming paint
Proportioning according to priming paint first component, with Resins, epoxy and solvent, after treating that resin all dissolves, add iron mica, aluminium triphosphate, talcum powder, process white, mica, flow agent, antisettling agent high speed dispersion, grinding, make priming paint first component.With the aliphatic amide in the priming paint second component, aromatic amine and polymeric amide stirring at low speed, mix and promptly get priming paint second component.Priming paint first, second component is even by 20: 1.3 mixed, and slaking can be used in 10 minutes.
The products obtained therefrom quality examination is the result meet the technical requirements.
(2) preparation of finish paint
According to the proportioning of finish paint first component,, treat that resin is all after the dissolving with Resins, epoxy and solvent, add iron oxide red, iron mica, process white, mica, flow agent, antisettling agent high speed dispersion, grinding, add glass flake, low speed disperses, and makes finish paint first component.With the aliphatic amide in the finish paint second component, aromatic amine and polymeric amide stirring at low speed, mix and promptly get finish paint second component.Finish paint first, second two components are even by 20: 1.3 mixed, and slaking can be used in 10 minutes.The products obtained therefrom quality examination is the result meet the technical requirements.
3, coating method
The present invention is made up of priming paint, finish paint two portions, and all the mixed by 20: 1.3 is even with priming paint, finish paint two components before the coating, and slaking is coated on the rebar surface of derusting by sandblast and oxide skin after 10 minutes.Primer painting overpainting again after 13 hours.Coating process adopts roller coat.According to the sequence construction of twice priming paint twice finish paint, total coating thickness 240 μ m.
Claims (6)
1. the anticorrosive coating for concrete structure reinforcing bars of a self-vulcanizing, it is characterized in that this coating is by priming paint, finish paint two portions are formed, priming paint and finish paint include first, the weight proportion of each component is in the second bi-component priming paint first component: 1: 10～30 weight parts of the Resins, epoxy between the epoxy equivalent (weight) 300～1000, Resins, epoxy 2 is bisphenol A diglycidyl ether, the tetrabromo-bisphenol diglycidylether, the Hydrogenated Bisphenol A diglycidylether, the mixture of one or more in the Bisphenol F diglycidylether: 5～15 weight parts, pigment, filler 30～55 weight parts, auxiliary agent 0.5～1 weight part, solvent 20～40 weight parts; The second component is at least a in aliphatic amide, aromatic amine, the polymeric amide, during use with priming paint first, second two components by 20: the mixed of (1～1.4) is even, and slaking was used after 10～15 minutes; The weight proportion of each component is in the finish paint first component: Resins, epoxy 1: 10～30 weight parts, Resins, epoxy 2: 5～15 weight parts, pigment, filler 10～30 weight parts, glass flake 10～30 weight parts, auxiliary agent 0.2～1 weight part, solvent 20～40 weight parts, second component are at least a in aliphatic amide, aromatic amine, the polymeric amide; During use finish paint first, second two components are pressed 20: the mixed of (1.1～1.5) is even, and slaking was used after 10～15 minutes.
2. according to the described anticorrosive coating for concrete structure reinforcing bars of claim 1, it is characterized in that pigment, filler in the described priming paint is at least three kinds in iron oxide red, iron mica, aluminium triphosphate, ferrotitanium powder, zinc phosphate, mica powder, process white, iron oxide red, the talcum powder.
3. according to the described anticorrosive coating for concrete structure reinforcing bars of claim 1, it is characterized in that glass flake particle diameter in the described finish paint between 60～200 orders, carries out pre-treatment with coupling agent earlier before adding coating; Coupling agent is a kind of in monoalkoxy type titanic acid ester, chelating titanate, epoxy radicals silicone hydride, hydrosulphonyl silane, the aminosilane.
4. according to the described anticorrosive coating for concrete structure reinforcing bars of claim 1, it is characterized in that described auxiliary agent is one or more the mixture in dispersion agent, flow agent, the antisettling agent.
5. according to the described anticorrosive coating for concrete structure reinforcing bars of claim 1, it is characterized in that described solvent is one or more a mixture of toluene, dimethylbenzene, propyl carbinol, isopropylcarbinol, acetone, methyl iso-butyl ketone (MIBK), butanone.
6. method for preparing anticorrosive coating for concrete structure reinforcing bars as claimed in claim 1 is characterized in that technical process may further comprise the steps:
(1) preparation of priming paint
Proportioning according to the described priming paint first of claim 1 component, with Resins, epoxy and solvent, after treating that resin all dissolves, add pigment, filler and auxiliary agent high speed dispersion, grinding, make priming paint first component, priming paint first, second two components are pressed 20: the mixed of (1～1.4) is even, and slaking can be used in 10～15 minutes;
(2) preparation of finish paint
Proportioning according to the described finish paint first of claim 1 component, with Resins, epoxy and solvent, after treating that resin all dissolves, add pigment, filler and auxiliary agent high speed dispersion, grinding, add glass flake, low speed disperses, and makes finish paint first component, priming paint first, second two components are pressed 20: the mixed of (1.1～1.5) is even, and slaking can be used in 10～15 minutes.
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| CN109181470A (en) * | 2018-07-25 | 2019-01-11 | 湖北诗璐化工涂料股份有限公司 | Aqueous Chelation rust-proof primer and preparation method and application method |
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