CN102344738A - Composite antirust coating - Google Patents
Composite antirust coating Download PDFInfo
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- CN102344738A CN102344738A CN2010102436515A CN201010243651A CN102344738A CN 102344738 A CN102344738 A CN 102344738A CN 2010102436515 A CN2010102436515 A CN 2010102436515A CN 201010243651 A CN201010243651 A CN 201010243651A CN 102344738 A CN102344738 A CN 102344738A
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- composite antirust
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- antirust paint
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Abstract
The present invention discloses a composite antirust coating, and belongs to the technical field of a coating. The coating comprises two components of a component A and a component B. The component A is an epoxy resin dispersion system, which comprises a bisphenol A type liquid epoxy resin, a composite antirust pigment, flake zinc powder, an inorganic nano-material, a solvent and an assistant agent. The component B is a modified polyamide curing agent. During using, the two components are uniformly mixed according to a mass ratio of the component A to the component B of 10:3, and then the resulting mixture is used for coating. The composite antirust coating provided by the present invention has the following advantages that: the preparation method for the composite antirust coating is simple; the composite antirust coating is an anticorrosion coating for the steel structure, wherein the anticorrosion coating has high adhesion and high corrosion resistance; the composite antirust coating has a wide application.
Description
Technical field
The present invention relates to a kind of anticorrosive coating, be specifically related to a kind of composite antirust paint.
Background technology
According to the report that states such as the U.S., Japan, Canada announce, the annual direct economic loss that is only caused because of corrosion has just accounted for 1～4% of total value of production in national economy greatly, and the iron and steel of rust corrosion accounts for 20% of YO.The financial loss that the whole world causes because of metallic corrosion every year reaches 6 times of lose from natural calamity summations such as being about earthquake, fire, typhoon.In China, because the financial loss that metallic corrosion causes accounts for 4% of gross national product.Influence behind the steel corrosion, except direct loss, from the steelwork force analysis, Japanese statistical information shows, after steelwork is corroded under stressing conditions, if corrode 1%, its strength degradation 10～15%; If two-sided corrosion respectively reaches 5%, its structure will be scrapped.Along with global industrial expansion, the corrosive problem is on the rise, and metallic corrosion relates to a plurality of fields such as house, highway, bridge, subway, civil aviaton and industry manufacturing.With regard to world wide, the aseptic technic measure makes etching problem obtain some alleviations in continuous development, but generally speaking, corrosion of metal is still very serious.
Therefore, the excellent metallic corrosion means of defence of exploitation seems most important energetically.Prevent that at present one of method that metallic corrosion is effective, the most the most frequently used from being to apply erosion shield in the metallic surface.Traditional rust proof paint has a lot, according to anticorrosion mechanism, has two types, and one type is the coating of isolated extraneous corrosive medium, and another kind of is the coating that electro-chemical protection can be provided.The most frequently used is exactly traditional zinc-rich paint.But traditional zinc-rich paint has a lot of shortcomings: the one, and the not high needs that can not satisfy weather resistance of coating and base material sticking power; The 2nd, traditional zinc-rich paint ratio is easier to occur holiday, for example chaps etc.; The 3rd, traditional zinc-rich paint zinc content is big, and zinc weight proportion is bigger, so just causes cost very high.
Summary of the invention
The present invention provides a kind of composite antirust paint, has high adhesive force, high anti-corrosion; Its coating can completely cut off extraneous corrosive medium and get into, can sacrificial electrode is provided, can also reduce the coating cost greatly for matrix again.
The technical scheme that the present invention deals with problems is following: a kind of composite antirust paint; Be made up of A component and B component, raw material and the weight part of forming the A component are: 300 parts of bisphenol-A liquid epoxy resins, 5～30 parts of inorganic nano materials, 100～300 parts of composite antirust pigment, 200～400 parts of zinc flakes, 0～1 part of skimmer, 3～10 parts of dispersion agents, 0～10 part of flow agent, 100～200 parts of mixed solvents; The B component is the modified polyamide solidifying agent; During use, with two components by the A component: the mass ratio of B component=10: 3 mixes the back application and uses.
Said inorganic nano material is that in nano silicon oxide, nano-calcium carbonate or the nano-sized iron oxide one or more are composite by any mass ratio, and the simple particle diameter of said inorganic nano material is 2～100nm.
Said composite antirust pigment is the composite iron-titanium rust-stabilising pigment.WD-S-400 or WD-S-800 like Wanda's science and technology (Wuxi) ltd.
Said mixed solvent is that YLENE and propyl carbinol were with 7: 3 mixed solvents of mass ratio.
Said skimmer is any in the moral modest chemical 2700,3100,3200,3500,3600.
Said wetting dispersing agent is any among the modest chemical 923S of moral, 926.
Said flow agent is any in the moral modest chemical 495,835,837.
Said modified polyamide solidifying agent is used conventional solidifying agent for existing commercially available epoxy resin, like TY-650.
Said zinc flake is for existing commercially available prod, like Taizhou Kechuang zinc flake, German Eckart GmbH & Co. KG zinc flake.
The invention has the beneficial effects as follows:
The present invention adopts one or more inorganic nano materials compositely comes the modification traditional coating, can effectively improve the over-all properties of coating, realizes being coated with significantly improving of layer function.
The present invention adopts the composite iron-titanium rust-stabilising pigment as pigment.The composite iron-titanium rust-stabilising pigment belongs to efficient, nontoxic antirust inorganic materials, and strong covering power has chemistry antirust and the antirust dual rust-proof mechanism of physics, can improve the rheological of coating, improves coating adhesion, hardness, gloss and performance such as ageing-resistant.Under the situation of same film thickness, other similar rust-stabilising pigments of the amount ratio of composite iron-titanium rust-stabilising pigment are few, and rust-proof effect is superior to general pigment greatly.
Coating adopts zinc flake as important rust-stabilising pigment, and lamellar pigment has excellent shielding properties, and zinc flake has excellent shielding properties and electro-chemical protection effect simultaneously.Through the experimental study checking, when reaching identical rust-proof effect, the zinc flake consumption is far smaller than spherical zinc powder, can reduce total cost.
Embodiment
Further illustrate scheme of the present invention and effect below in conjunction with embodiment.
Embodiment 1
Concrete composition of raw materials is seen table 1.
The preparation method: the raw materials quality part according to formulating of recipe takes by weighing each material, after bisphenol-A liquid epoxy resin, nano material, composite antirust pigment, solvent and auxiliary agent mixing are stirred, below sand mill sand milling to fineness 40 μ m; Add zinc flake again, stirring at low speed promptly makes the A component to evenly.Taking by weighing modified polyamide solidifying agent TY-650 by proportion design is the B component.
During actual the use, with promptly making composite antirust paint after A component and the mixing of B component.The composite antirust paint brushing is being handled through derusting by sandblast on the steel plate of (degree of cleaning Sa2.5 level, roughness Rz40～75 μ m), and surface drying in the paint film 4 hours was done solid work in 24 hours.The room temperature held detected coating performance after 7 days.
The detected result of coating performance:
Paint film and steel plate sticking power are 8Mp; 1500 hours no changes of paint film salt spray resistance, 1500 hours no changes of anti-5% saline soak, anti-deionized water soaks 1500 hours no changes.
Table 1 embodiment 1 composition of raw materials
Embodiment 2
Concrete prescription is seen table 2.
Raw materials quality part according to formulating of recipe takes by weighing each material, after bisphenol-A liquid epoxy resin, nano material, composite antirust pigment, solvent and auxiliary agent mixing are stirred, below sand mill sand milling to fineness 40 μ m; Add zinc flake again, stirring at low speed promptly makes the A component to evenly.Take by weighing modified polyamide solidifying agent TY-650 by formulating of recipe and make the B component.
During actual the use, with promptly making composite antirust paint after A component and the mixing of B component.The composite antirust paint brushing is being handled through derusting by sandblast on the steel plate of (degree of cleaning Sa2.5 level, roughness Rz40～75 μ m), and surface drying in the paint film 4 hours was done solid work in 24 hours.The room temperature held detected coating performance after 7 days.
The detected result of coating performance:
Paint film and steel plate sticking power are 10Mp; 1200 hours no changes of paint film salt spray resistance, 1200 hours no changes of anti-5% saline soak, anti-deionized water soaks 1200 hours no changes.
Table 2 embodiment 2 composition of raw materials
Embodiment 3
Concrete prescription is seen table 3.
Raw materials quality part according to formulating of recipe takes by weighing each material, after bisphenol-A liquid epoxy resin, nano material, composite antirust pigment, solvent and auxiliary agent mixing are stirred, below sand mill sand milling to fineness 40 μ m; Add zinc flake again, stirring at low speed promptly makes the A component to evenly.Take by weighing modified polyamide solidifying agent TY-650 by formulating of recipe and make the B component.
During actual the use, with promptly making composite antirust paint after A component and the mixing of B component.The composite antirust paint brushing is being handled through derusting by sandblast on the steel plate of (degree of cleaning Sa2.5 level, roughness Rz40～75 μ m), and surface drying in the paint film 4 hours was done solid work in 24 hours.The room temperature held detected coating performance after 7 days.
The detected result of coating performance:
Paint film and steel plate sticking power are 12Mp; 1000 hours no changes of paint film salt spray resistance, 1000 hours no changes of anti-5% saline soak, anti-deionized water soaks 1000 hours no changes.
Table 3 embodiment 3 composition of raw materials
Claims (8)
1. composite antirust paint; Be made up of A component and B component, it is characterized in that: raw material and the weight part of forming the A component are: 300 parts of bisphenol-A liquid epoxy resins, 5～30 parts of inorganic nano materials, 100～300 parts of composite antirust pigment, 200～400 parts of zinc flakes, 0～1 part of skimmer, 3～10 parts of dispersion agents, 0～10 part of flow agent, 100～200 parts of mixed solvents; The B component is the modified polyamide solidifying agent; During use, with two components by the A component: the mass ratio of B component=10: 3 mixes the back application and uses.
2. a kind of composite antirust paint according to claim 1 is characterized in that said inorganic nano material is that in nano silicon oxide, nano-calcium carbonate or the nano-sized iron oxide one or more are composite by any mass ratio.
3. a kind of composite antirust paint according to claim 1 and 2, the simple particle diameter that it is characterized in that said inorganic nano material is 2～100nm.
4. a kind of composite antirust paint according to claim 1 is characterized in that said composite antirust pigment is the composite iron-titanium rust-stabilising pigment.
5. a kind of composite antirust paint according to claim 1 is characterized in that said mixed solvent is that YLENE and propyl carbinol were with 7: 3 mixed solvents of mass ratio.
6. a kind of composite antirust paint according to claim 1 is characterized in that said skimmer is any one in the moral modest chemical 2700,3100,3200,3500,3600.
7. a kind of composite antirust paint according to claim 1 is characterized in that said flow agent is any one in the moral modest chemical 495,835,837.
8. a kind of composite antirust paint according to claim 1 is characterized in that said wetting dispersing agent is any one among the modest 923S of moral, 926.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102436515A CN102344738A (en) | 2010-07-30 | 2010-07-30 | Composite antirust coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102436515A CN102344738A (en) | 2010-07-30 | 2010-07-30 | Composite antirust coating |
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| CN102344738A true CN102344738A (en) | 2012-02-08 |
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| CN2010102436515A Pending CN102344738A (en) | 2010-07-30 | 2010-07-30 | Composite antirust coating |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618144A (en) * | 2012-03-26 | 2012-08-01 | 江苏冠军涂料科技集团有限公司 | Special primer for heavy-duty machinery |
| CN102732130A (en) * | 2012-07-18 | 2012-10-17 | 中国海洋石油总公司 | High solid anticorrosive paint and preparation method thereof |
| CN102786862A (en) * | 2012-07-12 | 2012-11-21 | 中国石油天然气集团公司 | Multifunctional epoxy primer for offshore platforms and manufacturing method thereof |
| CN103483983A (en) * | 2013-09-25 | 2014-01-01 | 江苏华夏制漆科技有限公司 | Epoxy zinc-rich primer and preparation method thereof |
| CN103602215A (en) * | 2013-10-28 | 2014-02-26 | 江苏达胜热缩材料有限公司 | Modified epoxy primer |
| CN104804609A (en) * | 2014-01-27 | 2015-07-29 | 福建百花化学股份有限公司 | Two-component high zinc epoxy priming paint and preparation method thereof |
| CN104817035A (en) * | 2015-04-08 | 2015-08-05 | 赛埃孚汽车保修设备（太仓）有限公司 | Wear-resisting moving device of automobile elevator |
| CN110205000A (en) * | 2019-06-18 | 2019-09-06 | 上海泰梧科技有限公司 | A kind of sea water desalination pipeline internal corrosion pnenolic aldehyde epoxy powder coating and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618144A (en) * | 2012-03-26 | 2012-08-01 | 江苏冠军涂料科技集团有限公司 | Special primer for heavy-duty machinery |
| CN102786862A (en) * | 2012-07-12 | 2012-11-21 | 中国石油天然气集团公司 | Multifunctional epoxy primer for offshore platforms and manufacturing method thereof |
| CN102732130A (en) * | 2012-07-18 | 2012-10-17 | 中国海洋石油总公司 | High solid anticorrosive paint and preparation method thereof |
| CN103483983A (en) * | 2013-09-25 | 2014-01-01 | 江苏华夏制漆科技有限公司 | Epoxy zinc-rich primer and preparation method thereof |
| CN103602215A (en) * | 2013-10-28 | 2014-02-26 | 江苏达胜热缩材料有限公司 | Modified epoxy primer |
| CN104804609A (en) * | 2014-01-27 | 2015-07-29 | 福建百花化学股份有限公司 | Two-component high zinc epoxy priming paint and preparation method thereof |
| CN104817035A (en) * | 2015-04-08 | 2015-08-05 | 赛埃孚汽车保修设备（太仓）有限公司 | Wear-resisting moving device of automobile elevator |
| CN110205000A (en) * | 2019-06-18 | 2019-09-06 | 上海泰梧科技有限公司 | A kind of sea water desalination pipeline internal corrosion pnenolic aldehyde epoxy powder coating and preparation method thereof |
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Application publication date: 20120208 |