CN104910741A - Zinc-rich coating containing pyrophosphate type single alkoxy titanium acid esters - Google Patents
Zinc-rich coating containing pyrophosphate type single alkoxy titanium acid esters Download PDFInfo
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- CN104910741A CN104910741A CN201510403411.XA CN201510403411A CN104910741A CN 104910741 A CN104910741 A CN 104910741A CN 201510403411 A CN201510403411 A CN 201510403411A CN 104910741 A CN104910741 A CN 104910741A
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Abstract
The invention discloses a zinc-rich coating containing pyrophosphate type single alkoxy titanium acid esters and a preparation process thereof, wherein the pyrophosphate type single alkoxy titanium acid esters are added into a coating during the preparation process of the coating, can greatly improve bonding force, dispersibility, unsinkability of the coating, and are moderate in cost and strong in universality, and the integrated performance of the prepared zinc-rich coating is excellent.
Description
Technical field
The present invention relates to a kind of zinc-rich anti-corrosive paint, particularly a kind of zinc-rich paint adding titanate coupling agent, belongs to paint field.
Background technology
In metallic substance, the use of iron and steel is the most extensive, and 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.
Titanate coupling agent and can form bridged bond between polymkeric substance and metal zinc, and due to the polar group that induces one in coupling agent (as epoxide group), improve the compatibility of metal zinc and silicate, improve with ground affinity, sticking power obviously strengthens simultaneously.Tetra-sodium type monoalkoxy class titanic acid ester is the one of titanate coupling agent, adds in coating, significantly can improve paint adhesion, and moderate, highly versatile, also improves dispersiveness, the resistance to sinking of metal-powder while improving sticking power.The present invention, by preparing in zinc-rich paint process, adds tetra-sodium type monoalkoxy class titanate coupling agent, the zinc-rich paint good combination property of preparation.
Summary of the invention
The present invention discloses a kind of zinc-rich paint and the preparation technology thereof that contain tetra-sodium type monoalkoxy class titanic acid ester, and 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-sodium type monoalkoxy class titanic acid ester 3%-6%;
Dilute phosphoric acid 2-10%.
A kind of preparation method of the zinc-rich paint containing tetra-sodium type monoalkoxy class titanic acid ester 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-sodium type monoalkoxy class 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 containing tetra-sodium type monoalkoxy class titanic acid ester.
Preferentially, step (2) in, Heating temperature is 60-70 DEG C.
The present invention has following advantages and characteristic:
(1) this Paint preparation technology is simple, good operability;
(2) cost performance is high, good combination property.
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-sodium type monoalkoxy class titanic acid ester 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 containing tetra-sodium type monoalkoxy class titanic acid ester.
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-sodium type monoalkoxy class titanic acid ester 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 containing tetra-sodium type monoalkoxy class titanic acid ester.
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-sodium type monoalkoxy class titanic acid ester 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 containing tetra-sodium type monoalkoxy class titanic acid ester.
Claims (2)
1. the zinc-rich paint containing tetra-sodium type monoalkoxy class titanic acid ester, is characterized in that the preparation method of this coating 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-sodium type monoalkoxy class 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 containing tetra-sodium type monoalkoxy class titanic acid ester.
2. a kind of zinc-rich paint containing tetra-sodium type monoalkoxy class titanic acid ester according to claim 1, 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-sodium type monoalkoxy class titanic acid ester 3%-6%, dilute phosphoric acid 2-10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510403411.XA CN104910741A (en) | 2015-07-11 | 2015-07-11 | Zinc-rich coating containing pyrophosphate type single alkoxy titanium acid esters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510403411.XA CN104910741A (en) | 2015-07-11 | 2015-07-11 | Zinc-rich coating containing pyrophosphate type single alkoxy titanium acid esters |
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| CN104910741A true CN104910741A (en) | 2015-09-16 |
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| CN201510403411.XA Pending CN104910741A (en) | 2015-07-11 | 2015-07-11 | Zinc-rich coating containing pyrophosphate type single alkoxy titanium acid esters |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112724721A (en) * | 2020-12-25 | 2021-04-30 | 三棵树(上海)新材料研究有限公司 | Inorganic real stone paint and preparation method thereof |
Citations (4)
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|---|---|---|---|---|
| CN102146225A (en) * | 2011-03-09 | 2011-08-10 | 华南理工大学 | Waterborne room-temperature self-curing inorganic zinc rich coating |
| CN103173045A (en) * | 2013-03-07 | 2013-06-26 | 中国科学院宁波材料技术与工程研究所 | Inorganic zinc-rich anticorrosive nano-attapulgite coating and its preparation method |
| CN104277635A (en) * | 2014-10-20 | 2015-01-14 | 芜湖县双宝建材有限公司 | Special antifouling corrosion-resistant paint for marine ships |
| CN104356727A (en) * | 2014-11-14 | 2015-02-18 | 无锡伊佩克科技有限公司 | Water-based inorganic zinc-rich paint and preparation method thereof |
-
2015
- 2015-07-11 CN CN201510403411.XA patent/CN104910741A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146225A (en) * | 2011-03-09 | 2011-08-10 | 华南理工大学 | Waterborne room-temperature self-curing inorganic zinc rich coating |
| CN103173045A (en) * | 2013-03-07 | 2013-06-26 | 中国科学院宁波材料技术与工程研究所 | Inorganic zinc-rich anticorrosive nano-attapulgite coating and its preparation method |
| CN104277635A (en) * | 2014-10-20 | 2015-01-14 | 芜湖县双宝建材有限公司 | Special antifouling corrosion-resistant paint for marine ships |
| CN104356727A (en) * | 2014-11-14 | 2015-02-18 | 无锡伊佩克科技有限公司 | Water-based inorganic zinc-rich paint and preparation method thereof |
Non-Patent Citations (2)
| Title |
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| 张秀梅 等: "《涂料工业用原材料技术标准手册 第二版》", 31 January 2004 * |
| 张鹏飞 等: "水性无机富锌涂料及其改性", 《上海涂料》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112724721A (en) * | 2020-12-25 | 2021-04-30 | 三棵树(上海)新材料研究有限公司 | Inorganic real stone paint and preparation method thereof |
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Application publication date: 20150916 |