CN101955718A - High-permeability epoxy resin primer as well as preparation method and application thereof - Google Patents
High-permeability epoxy resin primer as well as preparation method and application thereof Download PDFInfo
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- CN101955718A CN101955718A CN200910054954XA CN200910054954A CN101955718A CN 101955718 A CN101955718 A CN 101955718A CN 200910054954X A CN200910054954X A CN 200910054954XA CN 200910054954 A CN200910054954 A CN 200910054954A CN 101955718 A CN101955718 A CN 101955718A
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Abstract
The invention discloses a high-permeability epoxy resin primer as well as a preparation method and the application thereof. The high-permeability epoxy resin primer comprises a component A and a component B, wherein the component A is prepared from the following components in parts by weight: 90-120 parts of epoxy resin, 20-80 parts of active thinner, 0.1-5 parts of sub-nanometer metal oxides of a transition group and 0.1-0.2 part of dimethylaminomethyl-phenol. The high-permeability epoxy resin primer of the invention is a dual-component coating prepared from the modified epoxy resin and the modified curing agent. The coating has high solid content, low viscidity, strong permeability, lower VOC (Volatile Organic Compound), great adhesion, corrosion resistance, and the like, can be applied to the rust surface of low-surface-treated steel material and coatings of water-based inorganic zinc, and the like, can be compatible with coatings capable of matching an epoxy coating and have favorable effect.
Description
Technical field
The present invention relates to a kind of epoxy resin primer.
Background technology
It is reported that iron and steel facility long-term exposure is in atmosphere, the amount that annual corrosion is scrapped accounts for more than 20% of iron and steel ultimate production.For preventing corrosion, the most simple and effective method is protected with coating.
And giving full play to of anticorrosion with coat performance then mainly depends on surface of good to handle, and when steel surface application traditional coating, all requires usually thoroughly to eliminate rust (〉=Sa2.5 level).Generally speaking, in the steel construction maintenance construction expense, rust cleaning accounts for 45%.In the maintenance process of the large-scale steel structure of having built up, as the ship structure compactness, be subjected to the restriction of execution conditions, often adopt the rust cleaning of craft or power tool during maintenance, so be difficult to carry out surface treatment completely, must be also on the surface can residual iron rust, aged paint film and corrosive medium or the like, in this case, demanding to metal finishing, the rust proof paint that performance is good more also is difficult to play a role, the preservative effect that can not get expecting, its life-span have only usually the original design life-span half in addition lower, therefore need a kind of high-performance that can directly carry out application at this band rusty surface, the coating that low surface treatment requires to reduce the surface-treated workload, adapts to the needs of maintenance engineering.And this coating must have remarkable infiltration and chelating ability, porous is in the rust staining attached to the iron-based surface, play the effect of stable solid rust, so just can reduce or save the surface treatment of rust cleaning, can significantly reduce painting cost, improve the preservative effect of composite anti-corrosive coating, the maintenance of boats and ships, steel construction coating is had very big meaning.
In addition, what the large-scale steel structure long-effective corrosion was relatively more commonly used at present is aqueous inorganic zinc-enriched coating, and coatingsurface is comparatively coarse, porosity is bigger, before the coated surfaces coating, need one seal coat confining surface pore, in order to avoid defective such as pin hole after the finish paint application, occurs.This seal coat generally is that solvent-borne type epoxy micaceous iron coating adds about 70% solvent latting drown and forms, the volatile quantity of organic volatile (VOC) is very high, pollution to environment during construction is very severe, against the original intention that adopts water-borne coatings, the height infiltration seal coat that necessary for this reason exploitation matches with the aqueous inorganic zinc paint satisfies the requirement of antiseptic project.
At present, because the development of oceanographic engineering, large-scale persistent concrete works increases, and the epoxy coating of the high infiltration of low viscosity that is used to keep in repair distress in concrete is also more common.Domestic height infiltration epoxy coating great majority are applied to the protection of industrial concrete, terrace, are solvent based coating mostly.
The modified epoxy priming paint that has stable solid rust, chelating function in patent is single-component normally, generally is flexible low viscosity epoxy coating, but low viscosity epoxy coating normally solids content is lower, organic volatile content (VOC) is very high.
Existing domestic and international technical target of the product sees Table 1.
Table 1 is technical target of the product both at home and abroad
External priming paint shown in the table 1 is typical product on the market, is the epoxy primer of two components.Introduce it according to its data and have low viscosity, hypertonicity, can be used for the reduction process steel surface, old paint film is had adaptability.Find that by test the viscosity of this priming paint is 17 seconds.But its organic volatile (VOC) content is very high, this product description is introduced the VOC value and is 204g/L, but national coating quality supervision and inspection center is detected the VOC value of the said firm and is reached 360g/L, typical product is the solvent-borne type seal coat on the domestic market, and organic volatile (VOC) content is equally very high.Yet there are no on the non-solvent epoxy priming paint market of high solid, hypertonicity, low viscosity, low organic volatile (VOC).
Summary of the invention
The purpose of this invention is to provide the high infiltration of a kind of high infiltration epoxy resin primer epoxy resin primer and its production and application,, satisfy relevant branch of industry needs to overcome the above-mentioned defective that prior art exists.
High infiltration epoxy resin primer of the present invention is made up of A component and B component, and the weight ratio of A component and B component is: the A component: B component=2.0～2.7: 1;
Described A component comprises following compositions in weight portion:
90～120 parts of Resins, epoxy
20～80 parts of reactive thinners
The transition group sub-nano golden belongs to 0.1～5 part of oxide compound
0.1～0.2 part of curing catalyst
Described Resins, epoxy is selected from one or more in bisphenol A diglycidyl ether and the Bisphenol F diglycidylether;
Bisphenol A diglycidyl ether can adopt the commercially available prod, as petrochemical industry company limited of Yueyang Ba Ling Huaxing trade mark is the Resins, epoxy of CYD-128, the Bisphenol F diglycidylether can adopt the commercially available prod, likes that as the Wuxi enlightening the biochemical worker company limited trade mark is the Resins, epoxy of 830#;
Described reactive thinner is selected from one or more in butylglycidyl ether or the polypropylene glycol glycidyl ether;
Butylglycidyl ether can adopt the commercially available prod, is the reactive thinner of JX-8501 as huge Xinghua, Shanghai worker company limited trade mark, and the polypropylene glycol glycidyl ether adopts the commercially available prod, is the reactive thinner of DER-732 as the U.S. DOW company trade mark;
Described transition group sub-nano golden belongs to oxide compound and is selected from titanium oxide, zinc oxide, nickel oxide, manganese oxide, chromic oxide, cupric oxide, ferric oxide or calcium oxide etc.
The chemical name of described curing catalyst is dimethylamino methyl-phenol, and can adopt as the firelight or sunlight chemical industry of the moral company limited trade mark is DMP-30 curable epoxide promotor;
Preferably, described A component also can comprise following compositions in weight portion:
0～10 part of zinc phosphate
0～10 part of tannic acid
Described B component is made up of the JX400-H solidifying agent of 40～70 weight parts and 611 solidifying agent of 5～20 weight parts;
The chemical name of described JX400-H solidifying agent is that aromatic amine is polymer-modified, can adopt the commercially available prod, is the JX400-H solidifying agent as huge Xinghua, Shanghai worker company limited trade mark.
Described 611 solidifying agent are for being the reaction product of raw material with methyl iso-butyl ketone (MIBK), dimethylbenzene, Whitfield's ointment and quadrol, and the preparation method is as follows:
With methyl iso-butyl ketone (MIBK), Whitfield's ointment and quadrol, in solvent xylene, in the nitrogen atmosphere, 105～120 ℃ of back flow reaction, in reaction time, discharged the water that reaction produces, and reaches the output of theoretical reaction water, cooling to the output of water, reaction mixture vacuumizes, vacuum tightness is kept 1～3.5mmHg, is heated to 50～80 ℃, removes toluene and excessive basic isobutyl ketone, cool to room temperature under vacuum can obtain 611 solidifying agent;
Each component, count with weight ratio:
Methyl iso-butyl ketone (MIBK): toluene: Whitfield's ointment: quadrol=180～240: 80～130: 0.3～2.5: 30～55;
Preparation method of the present invention comprises the steps:
The preparation of A component:
(1) liquid epoxies is mixed with reactive thinner, disperse, preferred, jitter time is 0.2～0.5 hour;
(2) add other component, disperse, preferred, jitter time is 0.5～1 hour;
(3) sand milling, the sand milling time is 0.2～1 hour, disperses then, jitter time is 0.2～1 hour, can obtain product;
Described dispersion, can in high speed dispersor, carry out, described high speed dispersor is a kind of equipment of routine, as Jiangyin Fine Chemical Co., Ltd trade mark is the product of FL4 high speed dispersor, described sand milling can carry out in sand mill, described sand mill is a kind of general equipment, is the product of JWS horizontal sand mill as Jiangyin Fine Chemical Co., Ltd trade mark;
The preparation of B component:, can obtain the B component with JX400-H solidifying agent and 611 solidifying agent blending dispersion.
High infiltration epoxy resin primer of the present invention, can be used on the coating such as low surface treatment, the steel surface of being with corrosion and aqueous inorganic zinc, all can all can be compatible with it supporting with the supporting coating of epoxy coating, constructional method is conventional method, can spray, brush, roller, dip-coating.
High infiltration epoxy resin primer of the present invention is the dual-component coating of being made by the solidifying agent of modified epoxy, modification.This coating has high solid, low viscosity, characteristics such as perviousness by force, very low organic volatile content (VOC), sticking power is big, corrosion-resistant, can on coating such as low surface treatment, the steel surface of being with corrosion and aqueous inorganic zinc, use, all can with the supporting coating of epoxy coating all can be compatible with it supporting, respond well.
Description of drawings
State before Fig. 1 guardrail applies.
Fig. 2 has applied development priming paint guardrail (before the test).
Fig. 3 is for tanning by the sun result's (test back) of 6 months naturally.
Embodiment
Embodiment 1～embodiment 4
Adopt prescription as table 1.
The preparation method is as follows:
The preparation of A component:
(1) liquid epoxies is mixed with reactive thinner, disperse, jitter time is 0.3 hour;
(2) add other component, disperse, jitter time is 0.7 hour;
(3) sand milling, the sand milling time is 0.5 hour, disperses then, jitter time is 0.7 hour, can obtain product;
Be dispersed in the high speed dispersor and carry out, high speed dispersor is that Jiangyin Fine Chemical Co., Ltd trade mark is the product of FL4 high speed dispersor, and sand milling can carry out in sand mill, and sand mill is that Jiangyin Fine Chemical Co., Ltd trade mark is the product of JWS horizontal sand mill;
The preparation of B component:
The preparation of 611 solidifying agent:
With methyl iso-butyl ketone (MIBK), Whitfield's ointment and quadrol, in solvent xylene, in the nitrogen atmosphere, 105 ℃ of back flow reaction, in reaction time, discharged the water that reaction produces, and reaches the output of theoretical reaction water, cooling to the output of water, reaction mixture vacuumizes, vacuum tightness is kept 3.5mmHg, is heated to 80 ℃, removes toluene and excessive basic isobutyl ketone, cool to room temperature under vacuum can obtain 611 solidifying agent; Each component, count with weight ratio:
Methyl iso-butyl ketone (MIBK): toluene: Whitfield's ointment: quadrol=180: 80: 0.3: 30;
With JX400-H solidifying agent and 611 solidifying agent blending dispersion, can obtain the B component.
The Resins, epoxy that embodiment 1 adopts is the mixture of bisphenol A diglycidyl ether and Bisphenol F diglycidylether, and weight ratio is: bisphenol A diglycidyl ether: Bisphenol F diglycidylether=80: 20;
The Resins, epoxy that embodiment 2 adopts is bisphenol A diglycidyl ether;
The Resins, epoxy that embodiment 3 adopts is the mixture of bisphenol A diglycidyl ether and Bisphenol F diglycidylether, and weight ratio is: bisphenol A diglycidyl ether: Bisphenol F diglycidylether=100: 10;
The Resins, epoxy that embodiment 4 adopts is the Bisphenol F diglycidylether;
The reactive thinner that embodiment 1 adopts is the mixture of butylglycidyl ether and polypropylene glycol glycidyl ether, and weight ratio is: butylglycidyl ether: polypropylene glycol glycidyl ether=10: 40;
The reactive thinner that embodiment 2 adopts is the mixture of butylglycidyl ether and polypropylene glycol glycidyl ether, and weight ratio is: butylglycidyl ether: polypropylene glycol glycidyl ether=30: 10;
The reactive thinner that embodiment 3 adopts is a butylglycidyl ether;
The reactive thinner that embodiment 4 adopts is and the polypropylene glycol glycidyl ether;
The inferior nano-oxide of the transition group that embodiment 1 adopts is titanium oxide and manganese oxide, and mol ratio is 1: 1;
Embodiment 2 is a zinc oxide;
The inferior nano-oxide of embodiment 3 no transition group;
Embodiment 4 is the mixture of cupric oxide and Red copper oxide, and mol ratio is 1: 1.
Table 1
High infiltration epoxy resin primer of the present invention and two kinds of domestic and international typical products carry out the over-all properties comparative result and see Table 2.
Table 2
Among embodiment 1～embodiment 4 in the test item employing table 2 method of national Specification detect result such as table 3.
Table 3
The trade mark of external product is Devoe-Pre-prime 167, and the trade mark of home products is H-99.
Embodiment 5
Adopt the product of embodiment 1, be coated in the test on the guardrail surface (removing floating rust through wire brush handles) that has corrosion, outmoded paint film spalling, Fig. 1, Fig. 2 and Fig. 3 are seen in result contrast in front and back.
Actual use the result as can be known from above-mentioned, tanning by the sun 6 months priming paint after having the guardrail surface-coated development priming paint of corrosion, outmoded paint film spalling naturally, not have burn into intact.Illustrate that the priming paint of being developed has high-adaptability to old paint film, weathering resistance is fine, can be used to repair old paint film, and the performance of upgrading coating can be used separately or compatible with multiple coating, supporting, the common composite anti-corrosive coating of having complementary advantages of forming.
Claims (9)
1. high infiltration epoxy resin primer is characterized in that, is made up of A component and B component;
Described A component comprises following compositions in weight portion:
90～120 parts of Resins, epoxy
20～80 parts of reactive thinners
The transition group sub-nano golden belongs to 0.1～5 part of oxide compound
0.1～0.2 part of dimethylamino methyl-phenol.
2. high infiltration epoxy resin primer according to claim 1 is characterized in that described Resins, epoxy is selected from one or more in bisphenol A diglycidyl ether and the Bisphenol F diglycidylether.
3. high infiltration epoxy resin primer according to claim 1 is characterized in that described reactive thinner is selected from one or more in butylglycidyl ether or the polypropylene glycol glycidyl ether.
4. high infiltration epoxy resin primer according to claim 1 is characterized in that described transition group sub-nano golden belongs to oxide compound and is selected from titanium oxide, zinc oxide, nickel oxide, manganese oxide, chromic oxide, cupric oxide, ferric oxide or calcium oxide.
5. high infiltration epoxy resin primer according to claim 1 is characterized in that described A component also comprises following compositions in weight portion:
0～10 part of zinc phosphate
0～10 part of tannic acid.
6. high infiltration epoxy resin primer according to claim 1 is characterized in that described B component is made up of 611 solidifying agent of polymer-modified solidifying agent of the aromatic amine of 40～70 weight parts and 5～20 weight parts;
Described 611 solidifying agent are for being the reaction product of raw material with methyl iso-butyl ketone (MIBK), dimethylbenzene, Whitfield's ointment and quadrol.
7. according to each described high infiltration epoxy resin primer of claim 1～6, it is characterized in that the weight ratio of A component and B component is: the A component: B component=2.0～2.7: 1.
8. according to the preparation method of each described high infiltration epoxy resin primer of claim 1～7, it is characterized in that, comprise the steps:
The preparation of A component:
(1) liquid epoxies is mixed with reactive thinner, disperse;
(2) add other component, disperse;
(3) sand milling disperses then, can obtain product.
9. according to the application of each described high infiltration epoxy resin primer of claim 1～7, it is characterized in that, be used for the steel surface and the aqueous inorganic zinc paint of low surface treatment, band corrosion.
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| CN104277663A (en) * | 2014-10-20 | 2015-01-14 | 江苏常明电力设备有限公司 | Novel metal-armor mobile open-type switchgear |
| CN108912950A (en) * | 2018-05-31 | 2018-11-30 | 无锡市海轮涂料有限公司 | A kind of anti-rotten water-base epoxy priming paint peculiar to vessel |
| CN110016276A (en) * | 2019-04-28 | 2019-07-16 | 重庆艾普防腐技术有限公司 | Bridge heavy-duty anti-corrosion water-based epoxy sealing paint and preparation method thereof |
| CN110540830A (en) * | 2019-09-03 | 2019-12-06 | 天津中油渤星工程科技有限公司 | water-based modified synthetic resin cementing material and preparation method and application thereof |
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Family Cites Families (2)
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| US5338348A (en) * | 1993-09-22 | 1994-08-16 | Savin Roland R | Zinc powder-rich coating composition |
| CN1887992B (en) * | 2006-07-19 | 2010-10-27 | 江苏中矿大正表面工程技术有限公司 | Nanometer modified epoxy sealing paint and its prepn |
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| CN104277663A (en) * | 2014-10-20 | 2015-01-14 | 江苏常明电力设备有限公司 | Novel metal-armor mobile open-type switchgear |
| CN108912950A (en) * | 2018-05-31 | 2018-11-30 | 无锡市海轮涂料有限公司 | A kind of anti-rotten water-base epoxy priming paint peculiar to vessel |
| CN110016276A (en) * | 2019-04-28 | 2019-07-16 | 重庆艾普防腐技术有限公司 | Bridge heavy-duty anti-corrosion water-based epoxy sealing paint and preparation method thereof |
| CN110540830A (en) * | 2019-09-03 | 2019-12-06 | 天津中油渤星工程科技有限公司 | water-based modified synthetic resin cementing material and preparation method and application thereof |
| CN110540830B (en) * | 2019-09-03 | 2022-01-04 | 天津中油渤星工程科技有限公司 | Water-based modified synthetic resin cementing material and preparation method and application thereof |
| CN111548701A (en) * | 2020-04-30 | 2020-08-18 | 天津大学 | Coating capable of reducing heat dissipation of surface of thermal equipment and preparation method thereof |
| CN112337771A (en) * | 2020-11-23 | 2021-02-09 | 安徽吉利电气设备有限公司 | Power distribution box processing method |
| CN114771121A (en) * | 2022-05-09 | 2022-07-22 | 浙江中翔印铁制罐有限公司 | Environment-friendly printing process and equipment for manufacturing tin printing iron |
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