CN105295617A - Anticorrosion paint for inner wall of oil product storage tank - Google Patents
Anticorrosion paint for inner wall of oil product storage tank Download PDFInfo
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- CN105295617A CN105295617A CN201510775529.5A CN201510775529A CN105295617A CN 105295617 A CN105295617 A CN 105295617A CN 201510775529 A CN201510775529 A CN 201510775529A CN 105295617 A CN105295617 A CN 105295617A
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- oil product
- storage tank
- product storage
- anticorrosion paint
- surface anticorrosion
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Abstract
The invention relates to anticorrosion paint for an inner wall of an oil product storage tank. An oil product stored in an oil product storage tank contains corrosive substances such as hydrogen sulfide and organic and inorganic salts and can cause oil tank corrosion so that a service life is shortened. In order to prolong an oil tank service life, the metal oil tank needs anticorrosion treatment. Through coating with aqueous inorganic silicate zinc-rich paint, corrosion damage is greatly reduced and the problem of poor stability of silicate and zinc powder is solved. Potassium silicate as a base material, silica sol and silicone acrylic emulsion as auxiliary materials, a gamma-aminopropyl-trimethoxysilaneand coupling agent and zinc powder are mixed to form the anticorrosion paint with stable performances.
Description
Technical field
The present invention relates to a kind of protective system and preparation method thereof, particularly oil product storage tank protective system and preparation method thereof, belong to coating manufacture field.
Background technology
Along with the progressively development of national economy, all trades and professions also become increasing to the demand of oil, impel processed oil to transport and store and be further tending towards routinizing, because stored oil product contains hydrogen sulfide, the organic and corrosive chemical such as inorganic salt and water, add that tank wall is subject to the impact of environmental factors, the life-span of oil tank can shorten greatly.If can not carry out rotproofing timely to metallic oil tank, gently then surface corrosion polluting oil product, makes oil product colloid, potential of hydrogen, salinity increase, affects oil quality; Heavy then because of corrosion make oil tank bore a hole cause oil leak, not only form energy dissipation, contaminate environment, and easily cause fire, blast, its danger is well imagined.Therefore, adopt rational, advanced, economic means of defence, anti-corrosive treatment is carried out to metallic oil tank and is very important.
The anticorrosion main employing of oil tank in recent years comprises: the technology such as metal spraying genus, galvanic protection, protective system.Wherein static electricity conductive anticorrosive paint is the most extensive, and at present, static conductive coating is divided into eigenmode and addition type.Eigenmode is that coating matrix itself has electroconductibility, but price is higher, thus makes to apply and be restricted, and industry actual use be addition type.Namely addition type adds static conducting agent and forms static conductive coating in insulating body coating, and current addition type static conductive coating mainly adds the black static conductive coating of conductive carbon black and adds the static conductive coating of metal conductive powder.The shortcoming that wherein carbon system black static conductive coating exists solidity to corrosion, the galvanic corrosion with the carbon black in coating for anode with iron being negative electrode occurs for ornamental difference and the tank skin of storage tank.Metal addition type electrostatic conductive anticorrosion paint conductive stable, good decorative property.
Domestic metal addition type electrostatic conductive anticorrosion paint conventional at present mainly contains epoxy resin, urethane, inorganic zinc-rich, organic rich zinc, glass-flake coating etc.Wherein aqueous inorganic silicate zinc-rich paint is due to its organic solvent-free; there is free from extraneous odour, do not fire not quick-fried; the advantage such as free from environmental pollution; usually be used as the inner surface anticorrosion paint of oil product storage tank; inorganic zinc coating is directly contacted with base material steel surface by zinc powder; and form very strong chemical bonds; and form a battery be made up of zinc powder and substrate steel sheet; because of the electrochemical activity (standard potential is-0.763V) of zinc, comparatively iron (-0.449V) is active; electric current flows to iron by zinc, makes iron and steel be subject to galvanic protection.Zinc-rich paint and other silicate protective systems of high-module potassium silicate are compared, high-module potassium silicate base-material more easily with zinc powder hybrid reaction, set time also shortens dramatically, and decreases the time of individual layer application and face painting.In addition, the water tolerance of the corrosion protection coating formed by high-module potassium silicate base-material, shock-resistance and tack are all strong than the corrosion protection coating formed with other silicate base-materials of low modulus.But compared with other organic coating protective system, this coating wettability is low, sticking power is good not as other solvent based coating, and zinc powder adds in coating, and the stability that zinc powder and inorganic silicate merge is not enough.In order to overcome the shortcoming of stability deficiency, the present invention is by dope preparing process, add γ aminopropyl trimethoxysilane coupling agent, improve the compatibility of metal zinc and silicate, strengthen the sticking power of coating, thus prepare the inner surface anticorrosion paint of oil product storage tank of a kind of strong adhesion, free from environmental pollution, easy construction.
Summary of the invention
The object of this invention is to provide a kind of inner surface anticorrosion paint of oil product storage tank, for realizing this purpose, the preparation method of this coating comprises the steps:
(1) by a certain amount of solid content be 30% potassium silicate solution pour into and be equipped with in high speed agitator container, under the condition constantly stirred, slowly add the silicon sol of metering;
(2), after dripping silicon sol, system is heated;
(3), when being heated to certain temperature, in container, drip organosilicon crylic acid latex;
(4), after dripping organosilicon crylic acid latex, stop heating, and high-speed stirring for some time;
(5) add a certain amount of zinc powder again;
(6) finally add a certain amount of γ aminopropyl trimethoxysilane coupling agent, Keep agitation evenly after a kind of protective system of stability excellence.
The present invention is in dope preparing process, and the addition of potassium silicate solution accounts for the 20%-30% of system.
The present invention is in dope preparing process, and the addition of silicon sol accounts for the 15%-20% of system.
The present invention is in dope preparing process, and the addition of organosilicon crylic acid latex accounts for the 10%-20% of system.
The present invention is in dope preparing process, and the addition of γ aminopropyl trimethoxysilane coupling agent accounts for the 2%-4% of system.
The present invention is in dope preparing process, and the addition of the zinc powder added accounts for more than 40% of system, and is greater than 350 orders.
In step (3) process, temperature controls at 50-70 DEG C.
The present invention has following advantages and characteristic:
(1) the paint adhesion prepared is strong;
(2) ambient cure, not chap;
(3) free from environmental pollution, easy construction.
Embodiment
Embodiment one:
200g potassium silicate solution being poured into one is equipped with in high speed agitator container, under the condition constantly stirred, slowly drip 200g silicon sol, after dropwising, system is carried out being heated to 50 DEG C, 100g organosilicon crylic acid latex is added again in container, after dripping organosilicon crylic acid latex, stop heating, and high-speed stirring for some time, after evenly, then add the 350 object zinc powders of 480g, finally add the γ aminopropyl trimethoxysilane coupling agent of 20g, Keep agitation evenly after a kind of zinc-rich anti-corrosive paint of stability excellence.
Embodiment two:
600g potassium silicate solution being poured into one is equipped with in high speed agitator container, under the condition constantly stirred, slowly drip 300g silicon sol, after dropwising, system is carried out being heated to 60 DEG C, 220g organosilicon crylic acid latex is added again in container, after dripping organosilicon crylic acid latex, stop heating, and high-speed stirring for some time, after evenly, then add the 400 object zinc powders of 800g, finally add the γ aminopropyl trimethoxysilane coupling agent of 80g, Keep agitation evenly after a kind of zinc-rich anti-corrosive paint of stability excellence.
Embodiment three:
1000g potassium silicate solution being poured into one is equipped with in high speed agitator container, under the condition constantly stirred, slowly drip 900g silicon sol, after dropwising, system is carried out being heated to 70 DEG C, 1000g organosilicon crylic acid latex is added again in container, after dripping organosilicon crylic acid latex, stop heating, and high-speed stirring for some time, after evenly, then add the 350 object zinc powders of 2000g, finally add the γ aminopropyl trimethoxysilane coupling agent of 100g, Keep agitation evenly after a kind of zinc-rich anti-corrosive paint of stability excellence.
Claims (7)
1. an inner surface anticorrosion paint for oil product storage tank, is characterized in that, the preparation method of this coating comprises the following steps:
(1) by a certain amount of solid content be 30% potassium silicate solution pour into and be equipped with in high speed agitator container, under the condition constantly stirred, slowly add the silicon sol of metering;
(2), after dripping silicon sol, system is heated;
(3), when being heated to certain temperature, in container, drip organosilicon crylic acid latex;
(4), after dripping organosilicon crylic acid latex, stop heating, and high-speed stirring for some time;
(5) add a certain amount of zinc powder again;
(6) finally add a certain amount of γ aminopropyl trimethoxysilane coupling agent, Keep agitation evenly after a kind of protective system of stability excellence.
2. the inner surface anticorrosion paint of a kind of oil product storage tank according to claim 1, is characterized in that, in dope preparing process, the addition of potassium silicate solution accounts for the 20%-30% of system.
3. the inner surface anticorrosion paint of a kind of oil product storage tank according to claim 1, is characterized in that, in dope preparing process, the addition of silicon sol accounts for the 20%-30% of system.
4. the inner surface anticorrosion paint of a kind of oil product storage tank according to claim 1, is characterized in that, in dope preparing process, the addition of organosilicon crylic acid latex accounts for the 10%-20% of system.
5. the inner surface anticorrosion paint of a kind of oil product storage tank according to claim 1, is characterized in that, in dope preparing process, the addition of γ aminopropyl trimethoxysilane coupling agent accounts for the 2%-4% of system.
6. the inner surface anticorrosion paint of a kind of oil product storage tank according to claim 1, is characterized in that, in dope preparing process, the addition of the zinc powder added accounts for more than 40% of system, and is greater than 350 orders.
7. the inner surface anticorrosion paint of a kind of oil product storage tank according to claim 1, is characterized in that, in step (3) process, temperature controls at 50-70 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510775529.5A CN105295617A (en) | 2015-11-15 | 2015-11-15 | Anticorrosion paint for inner wall of oil product storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510775529.5A CN105295617A (en) | 2015-11-15 | 2015-11-15 | Anticorrosion paint for inner wall of oil product storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105295617A true CN105295617A (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510775529.5A Pending CN105295617A (en) | 2015-11-15 | 2015-11-15 | Anticorrosion paint for inner wall of oil product storage tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106752259A (en) * | 2016-11-22 | 2017-05-31 | 林全英 | A kind of method of modifying for preparing anticorrosive paint |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328387A (en) * | 2008-08-01 | 2008-12-24 | 河海大学 | Modified self-curing non-chromium zinc based anti-corrosive paint and preparation thereof |
| CN103788734A (en) * | 2012-11-02 | 2014-05-14 | 中冶建筑研究总院有限公司 | Water-soluble inorganic zinc-rich paint and preparation method thereof |
| CN104877488A (en) * | 2015-05-24 | 2015-09-02 | 曾文江 | Preparation process for water-based zinc rich paint taking potassium metasilicate as base material |
-
2015
- 2015-11-15 CN CN201510775529.5A patent/CN105295617A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328387A (en) * | 2008-08-01 | 2008-12-24 | 河海大学 | Modified self-curing non-chromium zinc based anti-corrosive paint and preparation thereof |
| CN103788734A (en) * | 2012-11-02 | 2014-05-14 | 中冶建筑研究总院有限公司 | Water-soluble inorganic zinc-rich paint and preparation method thereof |
| CN104877488A (en) * | 2015-05-24 | 2015-09-02 | 曾文江 | Preparation process for water-based zinc rich paint taking potassium metasilicate as base material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106752259A (en) * | 2016-11-22 | 2017-05-31 | 林全英 | A kind of method of modifying for preparing anticorrosive paint |
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Application publication date: 20160203 |
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