CN102108239A - Oil-resistant static-conducting anticorrosive paint and preparation method thereof - Google Patents
Oil-resistant static-conducting anticorrosive paint and preparation method thereof Download PDFInfo
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Abstract
The invention relates to an oil-resistant static-conducting anticorrosive paint and a preparation method thereof and belongs to the field of chemical industry. The oil-resistant static-conducting anticorrosive paint comprises the following raw materials in part by weight: 50 to 54 parts of liquid epoxy resin, 5 to 9 parts of rutile type titanium oxide powder, 0.5 part of bentonite, 1 to 1.4 parts of polyamide anti-settling agent, 1 part of dispersant, 0.5 part of leveling agent, 0.1 part of antifoaming agent, 20 to 24 parts of conducting mica powder, 3 to 7 parts of superfine talcum powder, 4 to 8 parts of methyl isobutyl ketone (MIBK), 0.3 to 0.7 part of antistatic agent and 28 to 56 parts of dimethylbenzene. The oil-resistant static-conducting anticorrosive paint has the advantages of reasonable formula design, high conductivity, low cost, stable quality and high oil resistance, is difficult to deposit and agglomerate and is easy to disperse and clean.
Description
Technical field
The present invention relates to a kind of electrostatically conductive oil-tolerant antifouling paste and preparation method thereof, belong to chemical field.
Background technology
Antistatic coating provides effective protection for oil fortune storage equipment, and it can get rid of the static charge that accumulates by conduction current, can play the effect that prevents equipment corrosion again.China began antistatic coating is studied in the nineties in last century, formulated the national safety standard GB13348-92 of " liquid petroleum product electrostatic safety rules " in 1992.Standard-required: the basin inwall should use the anti-electrostatic protective system, and the volume specific resistance of coating should hang down with 108 Ω (surface resistivity should be lower than 109 Ω).It is main antistatic coating that China successively develops with carbon, has not only stopped electrostatic accident, and has alleviated the corrosion of equipment.But antistatic coating in use also exposes many problems: based on the antistatic coating good conductivity of metallic stuffing, but cost an arm and a leg; With carbon is electroconductibility, the good corrosion resistance of main antistatic coating, but easily the deposition caking, be difficult to dispersion and cleaning, poor adhesive force in producing, easily chap, oil-proofness is poor, influences quality product, and color dullness is difficult for early discovery hidden danger or the like.
The static conductive coating technical indicator that standard GB 6950-2001 regulations must detect, therefrom the index of epoxy-polyurethane type static conductive coating necessity stipulates that be described as follows: the surface resistivity that requires paint film is 105～109 Ω as can be seen; Paint film has good corrosion prevention performance, can protect the corrosion of steel oil tank; Paint film after the curing must not pollute oil, and oil product is not had influence, and has certain feature of environmental protection; Oil-proofness is good, requires endurance empty kerosene, light oil, raw gasoline, crude oil, rough heavy oil, gasoline, heavy oil, petroleum naphtha, lubricating oil, diesel oil etc.; The mechanical property of designed coating and chemical index and antistatic index must be measured by national standard, and comply with the national standard requirements; Coating is easy to construction, applicable to constructional methods such as Airless spraying, roller coat; Owing to construct in jar, atmosphere draught-free must not use noxious solvent, and is free from environmental pollution.In the existing technology, substantially all use the conducting medium of metallic stuffing, carbon system, as application number is 94105369.5,200910219418.0 disclosed coating, do not use the static conductive coating of metallic stuffing, carbon system, as application number is 02134219.9 disclosed coating, all not fully up to expectations to the solution of these problems.
Summary of the invention
Technical problem to be solved by this invention provide a kind of formulating of recipe rationally, good conductivity, cost be low, be difficult for the deposition caking, disperse and cleaning, steady quality the electrostatically conductive oil-tolerant antifouling paste that oil-proofness is good easily
Another technical problem to be solved by this invention provides the preparation method of this electrostatically conductive oil-tolerant antifouling paste.
It is this electrostatically conductive oil-tolerant antifouling paste that the present invention solves the problems of the technologies described above the technical scheme that is adopted, and its raw material consists of:
The conductive mica powder of the flow agent of the polymeric amide anti-settling agent of the Rutile type Titanium Dioxide of 50-54 parts by weight of epoxy resin liquid, 5-9 weight part, the wilkinite of 0.5 weight part, 1-1.4 weight part, the dispersion agent of 1 weight part, 0.5 weight part, the defoamer of 0.1 weight part, 20-24 weight part, the superfine talcum powder of 3-7 weight part, the methyl iso-butyl ketone (MIBK) MIBK of 4-8 weight part, the static inhibitor of 0.3-0.7 weight part, the dimethylbenzene of 28-56 weight part.
As preferably, also contain solidifying agent in the raw material of the present invention.
As preferably, the consumption of solidifying agent of the present invention is 1/2nd of other all raw material total amounts.
As preferably, conductive mica powder of the present invention is the BC-C conductive mica powder.
As preferably, polymeric amide anti-settling agent of the present invention is polymeric amide anti-settling agent 6900HV, and described dispersion agent is dispersion agent EFKA-4010.
As preferably, flow agent of the present invention is flow agent EFKA-3777.
As preferably, defoamer of the present invention is defoamer BYK-052.
As preferably, static inhibitor of the present invention is the JS180 static inhibitor, and described superfine talcum powder is 200 orders--5000 purpose superfine talcum powders.
The present invention solves the problems of the technologies described above the preparation method that the technical scheme that is adopted still is a kind of electrostatically conductive oil-tolerant antifouling paste, and its preparation process is divided into:
A, with the ratio combination of dimethylbenzene, methyl iso-butyl ketone (MIBK) according to 7:3, be configured to solvent;
B, 609-40 Resins, epoxy liquid is dissolved in the solvent, forms preliminary resin liquid;
C, in preliminary resin liquid, add Rutile type Titanium Dioxide, wilkinite, polymeric amide anti-settling agent, dispersion agent, flow agent, defoamer, static inhibitor then, forming resin liquid;
D, then resin liquid is ground with shredder, being ground to particle diameter is 45 μ m, adds conductive mica powder, and it is uniformly dispersed, and makes the electrostatically conductive oil-tolerant antifouling paste.
As preferably, behind the step D of the present invention, in the described electrostatically conductive oil-tolerant antifouling paste of making, add solidifying agent, finish the preparation of electrostatically conductive oil-tolerant antifouling paste.
The present invention compares with existing technology, have the following advantages and characteristics: adopt the light-colored conductive filler to cooperate with organic antistatic agent, Resins, epoxy and the compounded coating of urethane resin system, every performance characterizes through the whole bag of tricks instrument, the technical indicator that its result all is up to state standards and requires.Coating can be widely used in the application of anti-electrostatics such as storage tanker, floor.Organic antistatic agent is the quaternary ammonium salt of long-chain, adds in the coating and can form the aqueous conductive layer of one deck at coatingsurface, thereby eliminated static.In epoxy coating, should select the less antistatic agent of amine value, otherwise it can influence the package stability of coating, in this project, selected efficient JS180 antistatic agent, for Hangzhou chemical research institute produces, addition is about 0.5% of a solids coatings, the conductivity of filming after the interpolation is stable to be improved, and does not also influence the chemical resistance of coating simultaneously.Adopt conductive mica powder and antistatic agent compound in this project, reached antistatic performance preferably, the execution of coating performance also promotes greatly simultaneously, and the inefficacy that can not produce conductivity owing to the gage distortion of filming reaches technical requirement.The applied metal bag is carried out mica conductive filler material, organic antistatic agent and Resins, epoxy, the compound conductive anti-corrosion coating that prepared of polyurethane system, the specific conductivity of composite electrically-conducting paint and the relation of conductive filler material content have been studied, the relation of the mechanical property of coating, water tolerance, oil-proofness and solidifying agent.Its specific conductivity of resulting composite electrically-conducting paint is less than about 107, the key technical indexes: conductivity, shock resistance, water-fast, oil resistance and corrosion resistance nature etc. all reach or are higher than the desired standard of GB6950-2001.On this basis, of light color because of the conductive filler material of its compound use, the painting color of making is also shallow, and can adjust; With use the black carbon filler to compare its coating better oil-proofness, stability are arranged, do not chap, ornamental strong; Compare with using other light complex conductive fillers, its production cost is low, the market competitiveness is strong.Composite electrically-conducting paint can be widely used in the anti-electrostatic application on storage tanker, floor etc.According to the characteristics of oil tank coating, the characteristics that require paint film must have good oil-proofness, chemical-resistant and normal temperature assimilation, be easy to construct.The epoxy polyurethane class is adopted in decision for this reason.Resins, epoxy commonly used is that condensation under base catalysis forms by dihydroxyphenyl propane and epoxy chloropropane.Resins, epoxy contains different structural units and chemical bond, and its preservative property are fairly good, but the good insulating of most of Resins, epoxy, fragility are big, with snappiness that has improved paint film after the urethane cures and shock resistance.High-molecular weight Resins, epoxy in selecting for use in this project, it has higher hydroxy radical content, and enough degree of crosslinking is arranged behind the polyurethane reaction, thereby guarantees that paint film has excellent solvent resistance, resistance to acids and bases and mechanical property preferably.Solvent is to dissolving resin and all influential to the electric conductivity of paint film, and good solvent can make that molecular resin is dispersed in the system uniformly.In general, high boiling solvent such as pimelinketone volatilization relatively are slower, and be relatively good to the solvability of Resins, epoxy.Be coated with the film conductivity height with what the good solvent of polymkeric substance was made, then electroconductibility is lower with filming of making of poor solvent.Alcoholic solvent is dissolved epoxy well, but a part and a NC0 radical reaction are arranged, thus can not select alcoholic solvent in the body series, but selected the mixed solvent of dimethylbenzene and ketone for use.The antistatic coating general requirement is solidified at normal temperatures, and the epoxy curing agent that is used under the normal temperature mainly contains polyamine, polyamine affixture and low molecule pa resin etc.But the chemical-resistant of different solidifying agent, snappiness, curing speed are soon and do not whiten and with cured article water tolerance etc. different characteristics is arranged all.Found through experiments, with the polyamine affixture reached that quick solidifying under the coating normal temperature, snappiness are good, good stability, oil resistant, water-proof purpose.But in engineering construction usually because the less stable of proportioning, in the winter time the low-temperature curing time longer, very short in the summer high temperature engineering time in season because difficulty of construction is bigger, usually cause quality problems.Select for use polyurethane prepolymer to make solidifying agent in this project, not only paint film property is preeminent, and can be in low-temperature curing, advantages such as the easy control of construction proportioning.
Embodiment
The present invention is described in further detail below in conjunction with embodiment, and following examples are explanation of the invention and the present invention is not limited to following examples.
In the present invention, solidifying agent is meant that application number is 200610052598.4 disclosed polyurethane curing agents.
Embodiment 1:
At first 14 kilograms of dimethylbenzene, 6 kilograms of methyl iso-butyl ketone (MIBK) are mixed, be configured to solvent.Then 54 kilograms 609-40 Resins, epoxy liquid is dissolved in the solvent, forms preliminary resin liquid.In preliminary resin liquid, add 6 kilograms of Rutile type Titanium Dioxides, 0.5 kilogram of wilkinite, 1.2 kilograms of polymeric amide anti-settling agent 6900HV, 1 kilogram of dispersion agent EFKA-4010,0.5 kilogram of flow agent EFKA-3777,0.1 kilogram of defoamer BYK-052,0.5 kilogram of JS180 static inhibitor then, form resin liquid; Then resin liquid is ground with shredder, being ground to particle diameter is 45 μ m, adds 23 kilograms of BC-C conductive mica powders, and it is uniformly dispersed, make electrostatically conductive oil-tolerant antifouling paste host, in host, add the solidifying agent of half weight of host weight, make electrostatically conductive oil-tolerant antifouling paste host.
Embodiment 2:
At first 9.3 kilograms of dimethylbenzene, 4 kilograms of methyl iso-butyl ketone (MIBK) are mixed, be configured to solvent.Then 52 kilograms 609-40 Resins, epoxy liquid is dissolved in the solvent, forms preliminary resin liquid.In preliminary resin liquid, add 7 kilograms of Rutile type Titanium Dioxides, 0.5 kilogram of wilkinite, 1.3 kilograms of polymeric amide anti-settling agent 6900HV, 1 kilogram of dispersion agent EFKA-4010,0.5 kilogram of flow agent EFKA-3777,0.1 kilogram of defoamer BYK-052,0.6 kilogram of JS180 static inhibitor then, form resin liquid; Then resin liquid is ground with shredder, being ground to particle diameter is 45 μ m, adds 20 kilograms of BC-C conductive mica powders, and it is uniformly dispersed, make electrostatically conductive oil-tolerant antifouling paste host, in host, add the solidifying agent of half weight of host weight, make the electrostatically conductive oil-tolerant antifouling paste.
Embodiment 3:
At first 18.7 kilograms of dimethylbenzene, 8 kilograms of methyl iso-butyl ketone (MIBK) are mixed, be configured to solvent.Then 50 kilograms 609-40 Resins, epoxy liquid is dissolved in the solvent, forms preliminary resin liquid.In preliminary resin liquid, add 5 kilograms of Rutile type Titanium Dioxides, 0.5 kilogram of wilkinite, 1.4 kilograms of polymeric amide anti-settling agent 6900HV, 1 kilogram of dispersion agent EFKA-4010,0.5 kilogram of flow agent EFKA-3777,0.1 kilogram of defoamer BYK-052,0.4 kilogram of JS180 static inhibitor then, form resin liquid; Then resin liquid is ground with shredder, being ground to particle diameter is 45 μ m, adds 22 kilograms of BC-C conductive mica powders, and it is uniformly dispersed, make electrostatically conductive oil-tolerant antifouling paste host, in host, add the solidifying agent of half weight of host weight, make the electrostatically conductive oil-tolerant antifouling paste.
Embodiment 4:
At first 16.3 kilograms of dimethylbenzene, 7 kilograms of methyl iso-butyl ketone (MIBK) are mixed, be configured to solvent.Then 51 kilograms 609-40 Resins, epoxy liquid is dissolved in the solvent, forms preliminary resin liquid.In preliminary resin liquid, add 9 kilograms of Rutile type Titanium Dioxides, 0.5 kilogram of wilkinite, 1 kilogram of polymeric amide anti-settling agent 6900HV, 1 kilogram of dispersion agent EFKA-4010,0.5 kilogram of flow agent EFKA-3777,0.1 kilogram of defoamer BYK-052,0.7 kilogram of JS180 static inhibitor then, form resin liquid; Then resin liquid is ground with shredder, being ground to particle diameter is 45 μ m, adds 21 kilograms of BC-C conductive mica powders, and it is uniformly dispersed, make electrostatically conductive oil-tolerant antifouling paste host, in host, add the solidifying agent of half weight of host weight, make the electrostatically conductive oil-tolerant antifouling paste.
Embodiment 5:
At first 11.7 kilograms of dimethylbenzene, 5 kilograms of methyl iso-butyl ketone (MIBK) are mixed, be configured to solvent.Then 53 kilograms 609-40 Resins, epoxy liquid is dissolved in the solvent, forms preliminary resin liquid.In preliminary resin liquid, add 8 kilograms of Rutile type Titanium Dioxides, 0.5 kilogram of wilkinite, 1.1 kilograms of polymeric amide anti-settling agent 6900HV, 1 kilogram of dispersion agent EFKA-4010,0.5 kilogram of flow agent EFKA-3777,0.1 kilogram of defoamer BYK-052,0.3 kilogram of JS180 static inhibitor then, form resin liquid; Then resin liquid is ground with shredder, being ground to particle diameter is 45 μ m, adds 24 kilograms of BC-C conductive mica powders, and it is uniformly dispersed, and makes the electrostatically conductive oil-tolerant antifouling paste.
Embodiment 6:
At first 14 kilograms of dimethylbenzene, 6 kilograms of methyl iso-butyl ketone (MIBK) are mixed, be configured to solvent.Then 52 kilograms 609-40 Resins, epoxy liquid is dissolved in the solvent, forms preliminary resin liquid.In preliminary resin liquid, add 7 kilograms of Rutile type Titanium Dioxides, 0.5 kilogram of wilkinite, 1.3 kilograms of polymeric amide anti-settling agent 6900HV, 1 kilogram of dispersion agent EFKA-4010,0.5 kilogram of flow agent EFKA-3777,0.1 kilogram of defoamer BYK-052,0.5 kilogram of JS180 static inhibitor then, form resin liquid; Then resin liquid is ground with shredder, being ground to particle diameter is 45 μ m, adds 22 kilograms of BC-C conductive mica powders, and it is uniformly dispersed, make electrostatically conductive oil-tolerant antifouling paste host, in host, add the solidifying agent of half weight of host weight, make the electrostatically conductive oil-tolerant antifouling paste.
Test-results:
The electrostatically conductive oil-tolerant antifouling paste that embodiment 6 makes is tested.
The surface treatment of coated article tinplate is clean, clean, dry with dehydrated alcohol, the electrostatically conductive oil-tolerant antifouling paste is adjusted viscosity, on coated article, press the priming paint twice, the finish paint twice are evenly brushed, its every performance of one week of drying at room temperature back test.
Volume specific resistance of filming and surface resistivity are tested with reference to U.S. material association criterion ASTM-D 257-93.And, sticking power, shock strength, snappiness, oil-proofness, water tolerance, the chemical reagent resistance of filming detected by national standard.The result is as follows.
Table 1: the over-all properties of electrostatically conductive oil-tolerant antifouling paste
| Test item | The technical indicator of putting on record | Test result | Detection method |
| Sticking power (cross-hatching)/level | - | 1 | GB/T720-1979 |
| Snappiness/mm | - | 1 | GB/T731-1993 |
| Shock-resistance/cm | ≥50 | 50 | GB/T732-1993 |
| Surface color | - | Light gray | Visual |
| Thermotolerance (120 ℃)/2h | Paint film is intact | Paint film is intact | GB/T1733-1993 |
| Surface drying time, 20 ℃/h | ≤4 | 3 | GB/T728-1989 |
| Do solid work the time, 20 ℃/h | ≤24 | 12 | GB/T1728-1989 |
| Resistivity/Ω | ＜109 | 108 | GB/T16906-1979 |
| Distilled water (50 ± 1) ℃ | The 21d no change | The 21d no change | GB/T1733-1993 |
| Aviation kerosene (52 ± 1) ℃ | The 21d no change | The 21d no change | GB/T9274-1988 |
In addition, need to prove, the specific embodiment described in this specification sheets, its prescription, title that technology is named etc. can be different.Allly conceive equivalence or the simple change that described structure, feature and principle are done, be included in the protection domain of patent of the present invention according to patent of the present invention.The technician of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present invention or surmount the defined scope of these claims, all should belong to protection scope of the present invention.
Though the present invention with embodiment openly as above; but it is not in order to limit protection scope of the present invention; any technician who is familiar with this technology, change and the retouching done in not breaking away from design of the present invention and scope all should belong to protection scope of the present invention.
Claims (10)
1. electrostatically conductive oil-tolerant antifouling paste, it is characterized in that: raw material consists of:
The conductive mica powder of the flow agent of the polymeric amide anti-settling agent of the Rutile type Titanium Dioxide of 50-54 parts by weight of epoxy resin liquid, 5-9 weight part, the wilkinite of 0.5 weight part, 1-1.4 weight part, the dispersion agent of 1 weight part, 0.5 weight part, the defoamer of 0.1 weight part, 20-24 weight part, the superfine talcum powder of 3-7 weight part, the methyl iso-butyl ketone (MIBK) MIBK of 4-8 weight part, the static inhibitor of 0.3-0.7 weight part, the dimethylbenzene of 28-56 weight part.
2. electrostatically conductive oil-tolerant antifouling paste according to claim 1 is characterized in that: also contain solidifying agent in the described raw material.
3. electrostatically conductive oil-tolerant antifouling paste according to claim 2 is characterized in that: the consumption of described solidifying agent is 1/2nd of other all raw material total amounts.
4. electrostatically conductive oil-tolerant antifouling paste according to claim 1 is characterized in that: described wilkinite is 140 wilkinites, and described conductive mica powder is the BC-C conductive mica powder.
5. electrostatically conductive oil-tolerant antifouling paste according to claim 1 is characterized in that: described polymeric amide anti-settling agent is polymeric amide anti-settling agent 6900HV, and described dispersion agent is dispersion agent EFKA-4010.
6. electrostatically conductive oil-tolerant antifouling paste according to claim 1 is characterized in that: described flow agent is flow agent EFKA-3777.
7. electrostatically conductive oil-tolerant antifouling paste according to claim 1 is characterized in that: described defoamer is defoamer BYK-052.
8. electrostatically conductive oil-tolerant antifouling paste according to claim 1 is characterized in that: described static inhibitor is the JS180 static inhibitor, and described superfine talcum powder is 200 orders--5000 purpose superfine talcum powders.
9. according to the preparation method of any described electrostatically conductive oil-tolerant antifouling paste of claim 1 to 8, its preparation process is divided into:
A, with the ratio combination of dimethylbenzene, methyl iso-butyl ketone (MIBK) according to 7:3, be configured to solvent;
B, 609-40 Resins, epoxy liquid is dissolved in the solvent, forms preliminary resin liquid;
C, in preliminary resin liquid, add Rutile type Titanium Dioxide, wilkinite, polymeric amide anti-settling agent, dispersion agent, flow agent, defoamer, static inhibitor then, forming resin liquid;
D, then resin liquid is ground with shredder, being ground to particle diameter is 45 μ m, adds conductive mica powder, and it is uniformly dispersed, and makes the electrostatically conductive oil-tolerant antifouling paste.
10. the preparation method of electrostatically conductive oil-tolerant antifouling paste according to claim 9 is characterized in that: behind the described step D, add solidifying agent in the described electrostatically conductive oil-tolerant antifouling paste of making, finish the preparation of electrostatically conductive oil-tolerant antifouling paste.
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| CN2011100290602A CN102108239A (en) | 2011-01-27 | 2011-01-27 | Oil-resistant static-conducting anticorrosive paint and preparation method thereof |
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| CN2011100290602A CN102108239A (en) | 2011-01-27 | 2011-01-27 | Oil-resistant static-conducting anticorrosive paint and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104140756A (en) * | 2014-03-23 | 2014-11-12 | 成都拜迪新材料有限公司 | Preparation method of epoxy heavy-anticorrosive, electrostatic-conducting and fire-retardant coating |
| CN114806337A (en) * | 2022-05-12 | 2022-07-29 | 紫荆花涂料（上海）有限公司 | Deep-cooling resistant primer and finish composition as well as preparation method and application thereof |
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| CN101343497A (en) * | 2008-08-21 | 2009-01-14 | 上海正臣防腐科技有限公司 | Environment friendly corrosion protection antistatic coating |
| CN101358099A (en) * | 2008-09-09 | 2009-02-04 | 北京市射线应用研究中心 | Epoxy static conducting anti-corrosive paint |
| CN101372601A (en) * | 2008-10-17 | 2009-02-25 | 洛阳七维防腐工程材料有限公司 | Oil resistant (solvent), heatproof static conducting anti-corrosive paint and preparation thereof |
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| CN1664035A (en) * | 2005-02-22 | 2005-09-07 | 大庆石油管理局 | Composite electric conductor static-conducting coating and method for making same |
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| CN101358099A (en) * | 2008-09-09 | 2009-02-04 | 北京市射线应用研究中心 | Epoxy static conducting anti-corrosive paint |
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| CN104140756A (en) * | 2014-03-23 | 2014-11-12 | 成都拜迪新材料有限公司 | Preparation method of epoxy heavy-anticorrosive, electrostatic-conducting and fire-retardant coating |
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| CN114806337A (en) * | 2022-05-12 | 2022-07-29 | 紫荆花涂料（上海）有限公司 | Deep-cooling resistant primer and finish composition as well as preparation method and application thereof |
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Application publication date: 20110629 |