CN105062273A - Corrosion prevention coating with added tetraisopropyl di(dioctylphosphate) titanate - Google Patents
Corrosion prevention coating with added tetraisopropyl di(dioctylphosphate) titanate Download PDFInfo
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- CN105062273A CN105062273A CN201510421910.1A CN201510421910A CN105062273A CN 105062273 A CN105062273 A CN 105062273A CN 201510421910 A CN201510421910 A CN 201510421910A CN 105062273 A CN105062273 A CN 105062273A
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- zinc
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- titanate
- tetra isopropyl
- acid ester
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Abstract
The invention discloses a corrosion prevention coating with added tetraisopropyl di(dioctylphosphate) titanate as well as a preparation method of the coating. The tetraisopropyl di(dioctylphosphate) titanate is added during preparation of the corrosion prevention zinc-rich coating, is hexa-coordinated titanate, is more stable than tetra-coordinated titanate and cannot have an exchange reaction with ester easily, when the tetraisopropyl di(dioctylphosphate) titanate is added to the coating, the dispersity and the anti-settling performance of zinc powder can be greatly improved, and the defect of aggregation of the zinc powder can be overcome.
Description
Technical field
The present invention relates to a kind of protective system and preparation method thereof, particularly a kind of zinc-rich anti-corrosive paint adding titanate coupling agent and preparation method thereof, belong to painting field.
Background technology
Within 2014, global crude steel output reaches 16.62 hundred million tons, increases by 1.2% on a year-on-year basis, and wherein Chinese crude steel output reaches 8.23 hundred million tons.But iron and steel easily corrodes when using, and during corrosion, the interface of metal there occurs chemistry or electrochemistry heterogeneous reaction, makes metal proceed to oxidation (ion) state.This significantly can reduce the mechanical property such as intensity, toughness of ferrous materials, destroys the geometrical shape of hardware, shortens the work-ing life of equipment, even cause the catastrophic failure such as fire, blast.People delay the corrosion speed of iron and steel by various mode, as improved base material, selecting anticorrosive, increase metal plating, adding inhibiter etc.By add other materials to suppress in pure metal or stop the corrosion shortcoming of iron and steel to be compared with original material, its physicals often lacks to some extent, or cause cost to increase due to the cost of alloy.Therefore the most frequently used anti-corrosion mode is exactly to needing the additional top coat having a tolerance of the metal of protection.Coating is one of important channel of anticorrosion of steel structure, and zinc rich primer is one of most widely used basic silkworm race in protective system.Containing a large amount of zinc powder in zinc-rich paint, close contact between zinc particles, between zinc particles and steel surface, the current potential of zinc is more negative than iron, so zinc atom easily loses electronics and becomes anode in electrolyte solution, iron rule is negative electrode.In positive column, zinc is corroded owing to losing electronics, and in cathodic area, steel surface constantly obtains electronics, thus is protected.After film has site tissue damage, expose matrix metal, can flow to iron and steel exposed portion at less area internal corrosion electric current, then the product of zinc is just deposited on and forms layer protecting film herein, delays corrosion and continues to occur.
Zinc-rich paint is divided into organic zinc rich paint and inorganic zinc coating, and it is film forming binder that organic zinc-rich paint commonly uses epoxy resin, chlorinated rubber, Vinylite and urethane resin.But the poor electric conductivity of the organic binder of organic zinc-rich paint.Inorganic zinc coating is divided into again solvent-borne type and water-based two class.Wherein aqueous inorganic zinc-enriched coating is made up of aqueous inorganic silicate (receive, potassium, lithium) resin, zinc powder, auxiliary agent etc.Aqueous inorganic zinc-enriched coating 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, but simultaneously because solvent is few, wettability is low, and thus sticking power is good not as corresponding solvent based coating, and zinc powder adds in coating, due to zinc powder and the more difficult fusion of inorganic silicate, attached power low with ground.
Tetra isopropyl two (dioctyl phosphito acyloxy) titanic acid ester is hexa-coordinate titanic acid ester, stablizes, not easily with ester generation permutoid reaction than four-coordination titanic acid ester.Good to the inorganic materials such as metal, glass sticking power, add in zinc-rich paint, greatly can improve dispersiveness, the resistance to sinking of zinc powder, overcome the shortcoming that zinc powder gathers.The present invention, by preparing in zinc-rich paint process, adds tetra isopropyl two (dioctyl phosphito acyloxy) titanate coupling agent, prepares a kind of zinc-rich paint of high adhesive force.
Summary of the invention
Protective system of open a kind of interpolation tetra isopropyl two (dioctyl phosphito acyloxy) titanic acid ester of the present invention and preparation method thereof, contained by this coating, the mass percent of component is:
Gui Suan Na 10%-20%;
Super-fine zinc dust 50%-70%;
Organosilicon crylic acid latex 15%-30%;
Tetra isopropyl two (dioctyl phosphito acyloxy) titanic acid ester 3%-6%;
Dilute phosphoric acid 2-10%.
A kind of protective system of tetra isopropyl two (dioctyl phosphito acyloxy) titanic acid ester and preparation method thereof that adds comprises the steps:
(1) get appropriate silicic acid Na solution to pour in a heatable container, slowly heat;
(2), after being heated to certain temperature, a certain amount of organosilicon crylic acid latex is slowly added in container, and ceaselessly stirs;
(3) stop heating, then in container, add appropriate tetra isopropyl two (dioctyl phosphito acyloxy) titanic acid ester, high-speed stirring;
(4) add zinc powder, ceaselessly stir;
(5) the dilute phosphoric acid that last interpolation is appropriate, obtains a kind of zinc-rich paint of high adhesive force.
Preferentially, step (2) in, Heating temperature is 60-70 DEG C.
The present invention has following advantages and characteristic:
(1) preparation technology is simple;
(2) paint adhesion is strong.
Embodiment
Embodiment one:
Get a container, 400g Gui Suan Na solution is joined in container, slowly heats, after temperature reaches 60 DEG C, slowly in container, drip 400g organosilicon crylic acid latex again, and do not stop to stir, after dropwising with stirrer, system temperature is down to room temperature, in container, add 60g tetra isopropyl two (dioctyl phosphito acyloxy) titanate coupling agent again, and improve stirring velocity, then add 1000g super-fine zinc dust, finally add 140g dilute phosphoric acid, obtain a kind of zinc-rich paint of high adhesive force.
Embodiment two:
Get a container, 300g Gui Suan Na solution is joined in container, slowly heats, after temperature reaches 65 DEG C, slowly in container, drip 300g organosilicon crylic acid latex again, and do not stop to stir, after dropwising with stirrer, system temperature is down to room temperature, in container, add 120g tetra isopropyl two (dioctyl phosphito acyloxy) titanate coupling agent again, and improve stirring velocity, then add 1200g super-fine zinc dust, finally add 80g dilute phosphoric acid, obtain a kind of zinc-rich paint of high adhesive force.
Embodiment three:
Get a container, 400g Gui Suan Na solution is joined in container, slowly heats, after temperature reaches 70 DEG C, slowly in container, drip 600g organosilicon crylic acid latex again, and do not stop to stir, after dropwising with stirrer, system temperature is down to room temperature, in container, add 120g tetra isopropyl two (dioctyl phosphito acyloxy) titanate coupling agent again, and improve stirring velocity, then add 2800g super-fine zinc dust, finally add 80g dilute phosphoric acid, obtain a kind of zinc-rich paint of high adhesive force.
Claims (2)
1. one kind is added protective system of tetra isopropyl two (dioctyl phosphito acyloxy) titanic acid ester and preparation method thereof, it is characterized in that this preparation method comprises the following steps:
(1) get appropriate silicic acid Na solution to pour in a heatable container, slowly heat;
(2), after being heated to certain temperature, a certain amount of organosilicon crylic acid latex is slowly added in container, and ceaselessly stirs;
(3) stop heating, then in container, add appropriate tetra isopropyl two (dioctyl phosphito acyloxy) titanic acid ester, high-speed stirring;
(4) add zinc powder, ceaselessly stir;
(5) the dilute phosphoric acid that last interpolation is appropriate, obtains a kind of zinc-rich paint of high adhesive force.
2. one according to claim 1 adds protective system of tetra isopropyl two (dioctyl phosphito acyloxy) titanic acid ester and preparation method thereof, it is characterized in that, the mass percent of this zinc-rich paint component concentration is: Gui Suan Na 10%-20%, super-fine zinc dust 50%-70%, organosilicon crylic acid latex 15%-30%, tetra isopropyl two (dioctyl phosphito acyloxy) titanic acid ester 3%-6%, dilute phosphoric acid 2-10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421910.1A CN105062273A (en) | 2015-07-19 | 2015-07-19 | Corrosion prevention coating with added tetraisopropyl di(dioctylphosphate) titanate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421910.1A CN105062273A (en) | 2015-07-19 | 2015-07-19 | Corrosion prevention coating with added tetraisopropyl di(dioctylphosphate) titanate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105062273A true CN105062273A (en) | 2015-11-18 |
Family
ID=54491805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510421910.1A Pending CN105062273A (en) | 2015-07-19 | 2015-07-19 | Corrosion prevention coating with added tetraisopropyl di(dioctylphosphate) titanate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105062273A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5413628A (en) * | 1993-09-22 | 1995-05-09 | Savin; Ronald R. | Stable inorganic zinc-powder rich coating composition |
-
2015
- 2015-07-19 CN CN201510421910.1A patent/CN105062273A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5413628A (en) * | 1993-09-22 | 1995-05-09 | Savin; Ronald R. | Stable inorganic zinc-powder rich coating composition |
Non-Patent Citations (2)
| Title |
|---|
| 周春婧等: ""硅丙乳液改性高模数硅酸钾水性无机富锌涂料的研究"", 《上海涂料》 * |
| 张鹏飞等: ""水性无机富锌涂料及其改性"", 《上海涂料》 * |
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| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151118 |
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| WD01 | Invention patent application deemed withdrawn after publication |