CN1357581A - Anticorrosion and antistatic method for oil filling pipe assembly and its mating paint - Google Patents
Anticorrosion and antistatic method for oil filling pipe assembly and its mating paint Download PDFInfo
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- CN1357581A CN1357581A CN 01138040 CN01138040A CN1357581A CN 1357581 A CN1357581 A CN 1357581A CN 01138040 CN01138040 CN 01138040 CN 01138040 A CN01138040 A CN 01138040A CN 1357581 A CN1357581 A CN 1357581A
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Abstract
The present invention relates to anticorrosion and antistatic method for oil filling pipe assembly and its mating paint. To the surface of iron and steel base of oil filling pipe assembly, single component epoxy zinc-riched primer to form anticorrosion layer and single component epoxy antistatic finish paint to form antistatic layer are painted successively. The two kinds of paint have the same base material and crosslinking agent and the crosslinking agent will crosslink with epoxy resin only at the cure temperature of 120-250 deg.c with short cure time. The two coatings are well matched. The method of the present invention may be used in production line.
Description
Technical field
The present invention relates to a kind of anticorrosion and antistatic method and matched coating thereof of oil filler pipe assembly.
Background technology
The anticorrosion and antistatic method of oil filler pipe assembly can directly adopt the metallic substance with excellent Corrosion Protection to make the oil filler pipe assembly, does not apply any protective layer.But costing an arm and a leg of this material, the cost height.Therefore, adopt steel surface coating process at present mostly, with the protection of its formed coating realization to the oil filler pipe assembly at the oil filler pipe assembly.The key of this method is selected coating variety.The coating that is fit to this purpose should possess good sticking power, protection against corrosion and antistatic property simultaneously.Existing single-component epoxy zinc rich primer; its base-material is to have excellent over-all properties; the Resins, epoxy that particularly has excellent adhesive attraction and Corrosion Protection, wherein high-load zinc powder has good galvanic protection effect to the iron and steel ground, and metallic zinc has electroconductibility again.But there is following shortcoming in this coating:
1. owing to contain a large amount of zinc powders, its easily produces hydrogen with the water reaction, and lay up period can produce tin phenomenon that expands after packing, package stability≤3 month.And the density of metallic zinc is relatively large, can produce again and sink to the bottom phenomenon, and during use, it is even to be difficult to restir, thus the final coating quality that forms of influence, and then influence protection effect; Though 2. zinc powder has electroconductibility, zinc powder is very active in air, easily is oxidized to zinc oxide, and along with the prolongation of time, the zinc powder of coatingsurface loses electroconductibility gradually, makes the conductivity and its stability instability.This shows that the single protective layer that only uses this single-component epoxy zinc rich primer to form can not satisfy the protection against corrosion and the antistatic requirement of oil filler pipe assembly simultaneously; 3. as the Resins, epoxy of this onepot coating base-material, adopt ketoimine to make latent curing agent mostly, its disadvantage is that set time is long, generally needs more than 7 days.Therefore can't adapt to batch production requirement on the streamline.
Summary of the invention
The object of the present invention is to provide a kind of anticorrosion and antistatic method and matched coating thereof of oil filler pipe assembly.This method is adapted at streamline and uses, and cost is low, two kinds of matched coating shelf-stables, and matching performance is good, and the non-corrosibility of oil filler pipe assembly, oil-proofness and conductivity are good.
Realize the technical scheme of the object of the invention: a kind of anticorrosion and antistatic method of oil filler pipe assembly, be to form the anticorrosion and antistatic coating at the steel surface of oil filler pipe assembly with coating, it is characterized in that, 1. surface treatment:, be that medium temperature phosphating solution carries out surface treatment with zinc-manganese at first with the oil removing of iron and steel substrate surface, the rust cleaning of oil filler pipe assembly; 2. apply corrosion-resistant coating: dip-coating one deck single-component epoxy zinc rich primer, normal temperature were placed after 20～30 minutes, solidified build 45～55 μ m 20～40 minutes at 120～250 ℃; 3. apply antistatic layer: method applied the antistatic finish paint of one deck single-component epoxy described in 2. the cooling back adopted.The dry film total thickness of corrosion-resistant coating and antistatic layer is 65～80 μ m.
A kind of coating that in aforesaid method, uses, it is the single-component epoxy zinc rich primer that can form corrosion-resistant coating, by base-material, linking agent, zinc powder, water-retaining agent and solvent composition, its base-material is a kind of Resins, epoxy that contains 2～5 epoxy group(ing), hydroxyl value 0.05～0.45, and its number-average molecular weight is 200～5000; Linking agent be solidification value (120～250 ℃) down can with hydroxyl and/or the epoxy group(ing) crosslinking reaction in the Resins, epoxy, the linking agent of crosslinking reaction does not take place at normal temperature; The particle diameter of zinc powder≤10 μ m; The material of water-retaining agent for reacting with contained minor amount of water in base-material, linking agent and the solvent, for the base-material of per 100 weight parts, dosage of crosslinking agent 5～60 weight parts, zinc powder consumption 600～1100 weight parts, water-retaining agent consumption 0.1～30 weight part, above-mentioned weight is all in solid, and solvent is an amount of.
In the above-mentioned coating, periporate powder oxide compound or carbon arranged as water-retaining agent; Calcium cpd; The metal alkoxide compound; Silane coupling agent or phthalate ester coupling agent or monofunctional isocyanates.
The another kind of coating that in aforesaid method, uses, it is the antistatic finish paint of single-component epoxy that can form antistatic layer on corrosion-resistant coating, by base-material, linking agent, conductive powder, auxiliary agent and solvent composition, its base-material is identical with the described single-component epoxy zinc rich primer of linking agent and claim 2, conductive powder is a metal-powder, non-metal powder, in the organic compound powder one or more, auxiliary agent is a dispersion agent, anti-settling agent and/or oxidation inhibitor, base-material for per 100 weight parts, dosage of crosslinking agent 5～60 weight parts, conductive powder consumption 5～98 weight parts, auxiliary agent 1～25 weight part, above-mentioned weight is all in solid, and solvent is an amount of.
The metal-powder that is used as conductive powder in the above-mentioned coating is bronze, silver powder, copper powder, Stainless Steel Powder or alloy powder; Non-metal powder as conductive powder is carbon black, graphite or metal oxide and coating powder thereof; The organic compound powder is polyethylene, polystyrene or metallic many conjugated polymerss.
Used linking agent is identical in above-mentioned two kinds of coating, can be resol, aminoresin, blocked isocyanate, aromatic amine or acid anhydrides.
Technique effect of the present invention: the present invention adopts on oil filler pipe assembly surface to apply with single-component epoxy zinc rich primer successively and forms corrosion-resistant coating and apply the method that forms antistatic layer with the antistatic finish paint of single-component epoxy, has realized the anticorrosion and antistatic of oil filler pipe assembly.Owing to form among the present invention in the single-component epoxy zinc rich primer of corrosion-resistant coating and be added with water-retaining agent, a phenomenon is listened in expanding of can preventing that zinc causes in original zinc rich primer, so zinc powder can be packaging together with base-material etc., and its package stability reaches one-level (〉=8 months).At the antistatic layer of corrosion-resistant coating surface-coated, both can prevent the oxidation of zinc, can guarantee that again there are enough stable conductive capabilities on oil filler pipe assembly surface.Overcome original single-component epoxy zinc rich primer, the unstable shortcoming of conductivity that is caused because of the zinc oxidation of formation coatingsurface.In addition, identical base-material and linking agent have been adopted owing to form corrosion-resistant coating with the coating that forms antistatic layer, therefore, the matching performance of two kinds of coatings is good, its sticking power is 1 grade (promptly do not have and peel off), make the twice coating especially as one deck, erosion resistance, oil-proofness, the antistatic effect of guaranteeing the oil filler pipe assembly meet the requirements (referring to table 5).Form the coating of corrosion-resistant coating and antistatic layer in the inventive method, its linking agent is the synthetic resins linking agent of non-ketoimine, this linking agent when normal temperature and resin crosslinking reaction does not take place, and under solidification value (120～250 ℃), then can rapid crosslinked film forming, so both can exempt the trouble that must add water-retaining agent when using ketoimine to make linking agent, can accelerate the coating film forming again.Shorten to set time less than 1 hour.Therefore the inventive method is particularly suitable for adopting on streamline, produces in batches.
Embodiment
Below in conjunction with embodiment the present invention is further described in detail, but is not limited thereto.Quantity among the embodiment is weight part.
Embodiment 1～2 single-component epoxy zinc rich primer, prescription sees Table 1
Table 1
| Material name | Specification | Embodiment | |
| ??1 | ??2 | ||
| Base-material Resins, epoxy | E06 (hydroxyl value 0.37, epoxy group(ing) 0.04～0.07, number-average molecular weight 2900), Wuxi resin processing plant produces | ??100 | ??100 |
| Linking agent masked isocyanate aminoresin | Self-control 582, Xinhua Resin Factory, Shanghai | ???40 ????- | ????- ???30 |
| Zinc powder | 〉=600 orders | ??1000 | ?1000 |
| The water-retaining agent vinyltrimethoxy silane | Industrial goods | ??6.3 | ??6.3 |
| Solvent ethylene glycol ether 1-Methoxy-2-propyl acetate | The industrial goods industrial goods | ??154 ??143 | ??154 ??143 |
The water-retaining agent that uses in the foregoing description 1～2 is a kind of silane coupling agent, also can adopt different types of water-retaining agent to mix uses, the water-retaining agent consumption is determined according to the water content of coating and the water-retaining capacity of water-retaining agent itself, can cause expand to listen storing unstable like this but must not be lower than 0.1%, and be higher than 30% non-corrosibility that can influence the coating that forms and oil-proofness etc.
Usually as the periporate powder oxide compound of water-retaining agent or carbon as the unformed silicon oxide of synthetic, zeolite, activated alumina, gac etc.; Calcium cpd such as CaSO
4, CaO etc.; Metal alkoxide compound such as sec.-propyl aluminium, tetra isopropyl titanium, tetraethyl silicate etc.; Silane coupling agent or titanate coupling agent such as methyltrimethoxy silane, γ-glycidyl ether oxygen propyl trimethoxy silicane, vinyltrimethoxy silane, two (dioctyl) pyrophosphoryl oxygen base-(2-hydroxyl) acetate titanium, sec.-propyl one or three (dioctyl pyrophosphate) titanic acid ester etc.; Monofunctional isocyanates compound such as methyl isocyanate, ethyl isocyanate, propyl isocyanate etc.
The antistatic finish paint of embodiment 3～4 single-component epoxies, prescription sees Table 2
Table 2
| Material name | Specification | Embodiment | |
| ??3 | ??4 | ||
| Base-material Resins, epoxy | E06 (hydroxyl value 0.37, epoxy group(ing) 0.04～0.07 molecular weight 2900), Wuxi resin processing plant produces | ??100 | ??100 |
| Linking agent masked isocyanate aminoresin | Self-control 582, Xinhua Resin Factory, Shanghai produces | ???40 ????- | ????- ???40 |
| Conductive powder carbon black graphite | The Shanghai carbon plant produces Shanghai colloid chemistry factory and produces | ???22 ???34 | ???22 ???34 |
| Auxiliary agent dispersion agent anti-settling agent | BYK-161, the German Buick product LD-125 of company, produce in Rieter chemical plant, Yangzhou | ???11 ????8 | ???11 ????8 |
| Solvent ethylene glycol ether 1-Methoxy-2-propyl acetate | The industrial goods industrial goods | ??118 ???97 | ??118 ???97 |
The conductive powder that uses in the foregoing description 3～4 is two kinds of non-metal powders, the conductive powder consumption decides according to the resistivity of conductive powder itself, if consumption is lower than 5%, then because of conductive powder very little, conducting particles can not form path each other in the formed antistatic layer, causes surface resistivity not reach requirement; Be higher than 98% as consumption, then can influence oil-proofness, mechanical property and the cupping of coating.
The masked isocyanate that uses among the embodiment 1,3 is to adopt following method preparation:
Agitator is being housed, thermometer, add 380.0 parts of tolylene diisocyanates in the clean reaction flask of reflux exchanger, 156.3 parts of ethylene glycol ethyl ethers, 230.2 parts of dimethylbenzene, 56.1 parts of 1-Methoxy-2-propyl acetates, 0.2 part of dibutyl tin dilaurate, stirring is warming up to 60～80 ℃, add 93.0 parts of N-204 polyethers then successively, 40.5 parts of N-210 polyethers, 6.8 parts of N-330 polyethers, 80 ℃ of insulations 2 hours, be warming up to 100～120 ℃ of insulations 2～3 hours again, NCO content is surveyed in sampling then, less than 4% is qualified, can be cooled to below 50 ℃, filter, the discharging sealing is standby.
The enforcement of the anticorrosion and antistatic method of embodiment 5 oil filler pipe assemblies
1. surface treatment is also cleaned the iron and steel substrate surface of oil filler pipe assembly with alkaline matter such as washing composition oil removing, and acid pickling and rust removing and cleaning are placed in the zinc-manganese system and soaked 2～8 minutes in warm (40～55 ℃) phosphatization liquid, take out then and clean, dry;
2. use the priming paint dip-coating of embodiment 2, normal temperature was placed 30 minutes, sent into drying tunnel and solidified 20 minutes down at 200 ℃, and build 45～55 μ m of formed corrosion-resistant coating are measured in the cooling back.
3. use the antistatic finish paint dip-coating of embodiment 4, normal temperature was placed 30 minutes, sent into drying tunnel and solidified 20 minutes down at 200 ℃, and the dry film total thickness that the cooling back forms is 65～80 μ m.Be oil filler pipe assembly this moment with anticorrosion and antistatic performance.
Used phosphatization liquid mainly contains filmogen (as primary zinc phosphate, alkali metal phosphate, phosphoric acid etc.), promotor (as nitrate, nitrite, superoxide, fluorochemical etc.), properties-correcting agent (as manganiferous cation modifier) and other auxiliary agents during above-mentioned surface treatment.
When on streamline, adopting the inventive method, only need the oil filler pipe assembly that desire is handled is placed on the hanger, can on streamline, implement method of the present invention, obtain having the oil filler pipe assembly of anticorrosion and antistatic performance by above-mentioned steps.
Measure correlated performance as follows
Measuring method:
A. package stability: get 1000 gram samples sealings and be stored in the stainless steel vessel of 45 ℃ of environment, placed 1 month, take out observation then.Assessment method: 1, no abnormal phenomenon; 2, thickening or a large amount of bubbles are arranged; 3, gel or sink to the bottom firmly.
B. preservative property: on the steel plate after the phosphatization, 200 ℃ solidified 20 minutes, and formed the dry film about 50 μ m with the sample dip-coating.Mensuration by the anti-neutral salt spray performance of GB/T1771-91 paint and varnish is tested, and the time is 1000 hours, checks the corrosion situation of model then.Assessment method: 1, no abnormal phenomenon; 2, part corrosion or foaming; 3, full plate corrosion or foaming.
C. cupping: on 1～1.5 * 150 * 150mm steel plate after the phosphatization, 200 ℃ solidified 20 minutes, formed the dry film about 50 μ m, were undertaken by the method for GB9753-88 paint and varnish drawing test, evaluated according to measured result with the sample dip-coating.
D. sticking power: on the steel plate after the phosphatization, 200 ℃ solidified 20 minutes, formed the dry film about 50 μ m with the sample dip-coating, were undertaken by the method for the cross cut test of GB9286-88 paint and varnish paint film.Assessment method: 1, nothing is peeled off; 2, part is peeled off; 3, all peel off.
E. surface resistivity: undertaken by GB16906-1997 Oil Tank static conductive coating determination of resistivity method, and press the measured result evaluation.
F. oil-proofness: undertaken by GB/T1734-93 paint film petrol-resistance assay method, condition is to soak 6 months in 70 ℃ the gasoline.Assessment method: 1, no abnormal phenomenon; 2, partly foamed; 3, full plate bubbles or comes off.
Measurement result:
A. the single-component epoxy zinc rich primer performance sees Table 3
Table 3
B. the antistatic finish paint performance of single-component epoxy sees Table 4
| Performance | The result | |
| Embodiment 1 | Embodiment 2 | |
| Package stability | ????1 | ????1 |
| Preservative property | ????1 | ????1 |
| Sticking power | ????1 | ????1 |
| Cupping (mm) | ????7.1 | ????7.2 |
Table 4
C. corrosion-resistant coating and antistatic layer matching performance see Table 5
| Performance | Embodiment 3 | Embodiment 4 |
| Surface resistivity (M Ω) | ????0.04 | ????0.07 |
| Oil-proofness | ????1 | ????1 |
| Sticking power | ????1 | ????1 |
| Cupping (mm) | ????7.2 | ????7.3 |
Table 5
| Test item | The result |
| Salt fog resistance | 〉=1000 hours |
| Sticking power | ????1 |
| Oil-proofness | ????1 |
| Surface resistivity | ????≤0.3MΩ |
| The cupping performance | ????≥7.0mm |
By above-mentioned assay as can be seen, adopt method of the present invention on the iron and steel ground of oil filler pipe assembly, successively apply corrosion-resistant coating and antistatic layer, owing to use single-component epoxy zinc rich primer of the present invention and the antistatic finish paint of single-component epoxy, make non-corrosibility, oil-proofness, the static resistance of oil filler pipe assembly reach requirement, cost is low and be adapted at using on the streamline.Be specially adapted to the oil filler pipe of aircraft, automobile, the anticorrosion and antistatic of more small-sized fuel tank, oil pipe.
Claims (6)
1, a kind of anticorrosion and antistatic method of oil filler pipe assembly, be to form the anticorrosion and antistatic coating at the steel surface of oil filler pipe assembly with coating, it is characterized in that, 1. surface treatment:, be that medium temperature phosphating solution carries out surface treatment with zinc-manganese at first with the oil removing of iron and steel substrate surface, the rust cleaning of oil filler pipe assembly; 2. apply corrosion-resistant coating: dip-coating one deck single-component epoxy zinc rich primer, normal temperature were placed after 20～30 minutes, solidified build 45～55 μ m 20～40 minutes at 120～250 ℃; 3. apply antistatic layer: method applied the antistatic finish paint of one deck single-component epoxy described in 2. the cooling back adopted, and the dry film total thickness of corrosion-resistant coating and antistatic layer is 65～80 μ m.
2, the supporting coating of the described method of a kind of and claim 1, it is characterized in that, it is the single-component epoxy zinc rich primer that can form corrosion-resistant coating, by base-material, linking agent, zinc powder, water-retaining agent and solvent composition, its base-material is a kind of Resins, epoxy that contains 2～5 epoxy group(ing), hydroxyl value 0.05～0.45, and its number-average molecular weight is 200～5000; Linking agent be solidification value (120～250 ℃) down can with hydroxyl and/or the epoxy group(ing) crosslinking reaction in the Resins, epoxy, and the linking agent of crosslinking reaction does not take place at normal temperature; The particle diameter of zinc powder≤10 μ m; The material of water-retaining agent for reacting with contained minor amount of water in base-material, linking agent and the solvent, for the base-material of per 100 weight parts, dosage of crosslinking agent 5～60 weight parts, zinc powder consumption 600～1100 weight parts, water-retaining agent consumption 0.1～30 weight part, above-mentioned weight is all in solid, and solvent is an amount of.
3, coating according to claim 2 is characterized in that, as water-retaining agent periporate powder oxide compound or carbon is arranged; Calcium cpd; The metal alkoxide compound; Silane coupling agent or phthalate ester coupling agent or monofunctional isocyanates.
4, a kind of and another supporting coating of the described method of claim 1, it is characterized in that, it is the antistatic finish paint of single-component epoxy that can form antistatic layer on corrosion-resistant coating, by base-material, linking agent, conductive powder, auxiliary agent and solvent composition, its base-material is identical with claim 2 with linking agent, conductive powder is a metal-powder, non-metal powder, in the organic compound powder one or more, auxiliary agent is a dispersion agent, anti-settling agent and/or oxidation inhibitor, base-material for per 100 weight parts, dosage of crosslinking agent 5～60 weight parts, conductive powder consumption 5～98 weight parts, auxiliary agent 1～25 weight part, above-mentioned weight is all in solid, and solvent is an amount of.
5, coating according to claim 4 is characterized in that, the metal-powder that is used as conductive powder is bronze, silver powder, copper powder, Stainless Steel Powder or alloy powder; Non-metal powder as conductive powder is carbon black, graphite or metal oxide and coating powder thereof; The organic compound powder is polyethylene, polystyrene or metallic many conjugated polymerss.
According to claim 2 or 4 described coating, it is characterized in that 6, described linking agent can be resol, aminoresin, blocked isocyanate, aromatic amine or acid anhydrides, can be above-mentioned two or more mixture.
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| CNB011380403A CN1159395C (en) | 2001-12-24 | 2001-12-24 | Anticorrosion and antistatic method for oil filling pipe assembly and its mating paint |
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| CN1159395C CN1159395C (en) | 2004-07-28 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534626A (en) * | 2010-12-17 | 2012-07-04 | 上海市电力公司 | Treatment method for corrosion prevention of cable |
| CN102601027A (en) * | 2011-12-22 | 2012-07-25 | 四川省川建管道有限公司 | Anti-corrosion technology for coating epoxy ceramic on cast iron pipe fitting |
| CN103080255A (en) * | 2010-08-31 | 2013-05-01 | 三菱重工业株式会社 | Antistatic coating, and structure made of composite material using same and production method therefor |
| CN103133024A (en) * | 2013-02-21 | 2013-06-05 | 浙江普泰克金属制品有限公司 | Anticorrosion type anchor rod and production technology of anticorrosion layers thereof |
| CN105032832A (en) * | 2015-07-07 | 2015-11-11 | 苏州华日金菱机械有限公司 | Ultrasonic cleaning device |
| CN106111503A (en) * | 2016-06-29 | 2016-11-16 | 安徽电信工程有限责任公司 | A kind of means of defence of communication iron tower |
| CN112063268A (en) * | 2020-09-16 | 2020-12-11 | 中国兵器工业第五九研究所 | Metal surface protective coating and preparation method thereof |
-
2001
- 2001-12-24 CN CNB011380403A patent/CN1159395C/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103080255A (en) * | 2010-08-31 | 2013-05-01 | 三菱重工业株式会社 | Antistatic coating, and structure made of composite material using same and production method therefor |
| CN102534626A (en) * | 2010-12-17 | 2012-07-04 | 上海市电力公司 | Treatment method for corrosion prevention of cable |
| CN102601027A (en) * | 2011-12-22 | 2012-07-25 | 四川省川建管道有限公司 | Anti-corrosion technology for coating epoxy ceramic on cast iron pipe fitting |
| CN102601027B (en) * | 2011-12-22 | 2013-10-30 | 四川省川建管道有限公司 | Anti-corrosion technology for coating epoxy ceramic on cast iron pipe fitting |
| CN103133024A (en) * | 2013-02-21 | 2013-06-05 | 浙江普泰克金属制品有限公司 | Anticorrosion type anchor rod and production technology of anticorrosion layers thereof |
| CN105032832A (en) * | 2015-07-07 | 2015-11-11 | 苏州华日金菱机械有限公司 | Ultrasonic cleaning device |
| CN106111503A (en) * | 2016-06-29 | 2016-11-16 | 安徽电信工程有限责任公司 | A kind of means of defence of communication iron tower |
| CN112063268A (en) * | 2020-09-16 | 2020-12-11 | 中国兵器工业第五九研究所 | Metal surface protective coating and preparation method thereof |
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| CN1159395C (en) | 2004-07-28 |
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Owner name: CNOOC CHANGZHOU PAINT + COATINGS INDUSTRY RESEARCH Free format text: FORMER OWNER: CHANGZHOU INST OF PAINT CHEMICAL, CHINESE CHEMICAL BUILDING CORP. Effective date: 20120910 |
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