CN1821326A - Process for preparing anti-wear, anti-corrosion nano composite epoxy zinc-enriched paint - Google Patents
Process for preparing anti-wear, anti-corrosion nano composite epoxy zinc-enriched paint Download PDFInfo
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- CN1821326A CN1821326A CN 200610025288 CN200610025288A CN1821326A CN 1821326 A CN1821326 A CN 1821326A CN 200610025288 CN200610025288 CN 200610025288 CN 200610025288 A CN200610025288 A CN 200610025288A CN 1821326 A CN1821326 A CN 1821326A
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Abstract
The present invention discloses the preparation process of antiwear, anticorrosive nanometer composite epoxy zinc-enriched paint. The repair paint has organic surfactant coated nanometer level functional powder in 2-15 wt% added, and the nanometer level functional powder is one or two selected from titania, silica, zinc oxide, nickel oxide, alumina, chromium oxide, manganese oxide and barium sulfate. The nanometer level powder is first dispersed in small amount of epoxy resin through ball milling, sand grinding or high speed emulsification to form slurry, and the slurry is then mixed with the main epoxy zinc-enriched paint component to obtain the antiwear, anticorrosive nanometer composite epoxy zinc-enriched paint. The coating of the composite epoxy zinc-enriched paint has high anticorrosive performance and high scratch resistance.
Description
Technical field
The present invention relates to a kind of preparation method of the coating composition based on Resins, epoxy, relate to a kind of preparation method who adds the epoxy zinc-enriched paint of nano-function powder in particular.
Background technology
The ocean is the very harsh environment of corrodibility; nearly all position on oceanographic engineering facility and naval vessel, ocean all needs to carry out anti-corrosion protection; therefore protective system included scope in ocean is very extensive; and the category that all belongs to heavy-duty coating, as rust-proofing primer, ship hull paint, porch paint, interior cabin lacquer, coating container, harbour facility and platform coating, oil tank coating, cooled with seawater pipeline and floating pipe line with coating etc.Zinc-rich paint is one of focus of present oceanographic engineering protective coating.Zinc-rich paint the earliest is to add equivalent zinc powder formulated inorganic zinc rich paint in invention eighties of last century thirties with water glass by Australian Victov Nightingale.Through about 70 years development, zinc-rich paint reaches its maturity, and has developed many types, successfully steamer, offshore production platform, harbour, gate, basin, pipeline, bridge etc. has been carried out favorable protection.Over nearly 20 years, priming paint adopts zinc rich primer, intermediate coat to adopt epoxy-mica ferric oxide lacquer, finish paint to adopt the application system of high-performance weather-proof lacquer to become the measure that domestic and international modern large-scale steel structure fabrication corrosion-proof coating is taked jointly.
Along with the mankind carry out on a large scale drive oing boldly to the ocean, marine economy and marine industries are further upgraded and to development in pluralism, people have higher requirement for epoxy zinc-enriched paint, for example permanent protective property energy, low consumption of resources and environmental ecology close friend etc.At present, the exploitation of epoxy zinc-enriched paint no longer is a protective of only paying attention to coating, and the scientific research personnel attempts to improve its over-all properties when improving the epoxy zinc-enriched paint barrier propterty always.It is found that the over-all properties that improves epoxy zinc-enriched paint, its key is further to improve the quality of coating integral body after the epoxy zinc-enriched paint film forming, and high resistance to corrosion seawater, scratch resistance performance etc. is its important feature.Practice shows that the key that improves the epoxy zinc-enriched paint film quality is to select for use the high-performance epoxy zinc-enriched paint.
At present, general epoxy zinc-enriched paint is by resin, and filler such as zinc powder and subsidiary material are formed.According to the classical corrosion failure mechanism of filming, the corrosion failure of filming in corrosive medium has three kinds of forms usually: the one, and coming off appears in the poor adhesive force of coating and matrix; The 2nd, coating self is subjected to the erosion of media such as acid, alkali, salt and has lost protection to matrix; The 3rd, coating exists defective (as pin hole) or coating impervious poor, and resembling Na+, Cl-plasma can be by spreading, and causes local corrosion thereby the resistance of coating is descended greatly.Epoxy zinc-rich coatingsurface scratch resistance performance depends primarily on the micro-and wear resisting property of coatingsurface.Usually the main path that improves film resistance to corrosion seawater, resistance to marring performance is to adopt performance resins and high-quality filler and auxiliary material etc.But in resin and these traditional mode of production fields of paint filler, offshore company occupies absolute advantage.Offshore company's coating has been grasped and has been monopolized productions such as performance resins, pigment and filler in a large number, separates and gordian technique such as purification, and domestic enterprise does not have advantage in this field and can say.The domestic enterprise's lifting conventional industries technology content that develops into of nanosecond science and technology provides new opportunity.Nanoparticle is owing to have special effectses such as surface effects, small-size effect, quantum size effect, macro quanta tunnel effect, is used for performances such as light that coating can make coating, magnetic, electricity, mechanics and is improved or gives its new function.Improve aspects such as traditional epoxy zinc-enriched paint sea water corrosion resistant and scratch resistance performance at employing nano composite powder body technique both at home and abroad and still lack relevant report, the present invention attempts to fill up this blank on the one hand.
Summary of the invention
Technical problem to be solved by this invention provides a kind of preparation method of anti-wear, anti-corrosion nano composite epoxy zinc-enriched paint, and this method can significantly improve the over-all properties of conventional zinc-rich paint.
The technical solution used in the present invention: a kind of preparation method of anti-wear, anti-corrosion nano composite epoxy zinc-enriched paint comprises the following steps:
A. be averaged the nano level function powder of particle diameter less than 100nm, with the organic surface active agent sodium laurate it is coated processing, described nano level function powder is selected from the mixture of a kind of in titanium oxide, silicon oxide, zinc oxide, nickel oxide, aluminum oxide, chromic oxide, manganese oxide or the barium sulfate or two kinds, and the consumption of described organic surface active agent sodium laurate is 1～10% of a described nano level function powder weight;
B. the above-mentioned nano level function powder that coats through the organic surface active agent sodium laurate is carried out ball milling, sand milling or emulsify at a high speed dispersion treatment at a small amount of Resins, epoxy, the nano level function powder is uniformly dispersed in Resins, epoxy, make slurries;
C. slurries that step b is made and epoxy zinc-enriched paint body thorough mixing are even, and the consumption of controlling described nano level function powder is 2～15% of described this body weight of epoxy zinc-enriched paint, promptly gets the product nano composite epoxy zinc-enriched paint.
The median size of the function powder of nano level described in the step a is 30～50nm.
The consumption of the function powder of nano level described in the step c is 3～6% of described this body weight of epoxy zinc-enriched paint.
Beneficial effect of the present invention: technology of the present invention is simple, nano-powder efficiently disperses in coating, not only can give full play to the excellent specific property of aspects such as the electricity that shows after the material nanoization, heat, also can effectively fill the pin hole of coating, significantly reduce the formation of the various defectives in the coating, thereby reach the purpose that significantly improves conventional zinc-rich paint over-all properties.
Embodiment
By embodiment the present invention is described in further detail, a kind of preparation method of anti-wear, anti-corrosion nano composite epoxy zinc-enriched paint, comprise the following steps: that a. is averaged the nano level function powder of particle diameter less than 100nm, with the organic surface active agent sodium laurate it is coated processing, described nano level function powder is selected from the mixture of a kind of in titanium oxide, silicon oxide, zinc oxide, nickel oxide, aluminum oxide, chromic oxide, manganese oxide or the barium sulfate or two kinds, and the consumption of described organic surface active agent sodium laurate is 1～10% of a described nano level function powder weight; B. the above-mentioned nano level function powder that coats through the organic surface active agent sodium laurate is carried out dispersion treatment at a small amount of Resins, epoxy, it is uniformly dispersed, make slurries, the dispersive method can be ball milling, sand milling or emulsify at a high speed etc.; C. slurries that step b is made and epoxy zinc-enriched paint body thorough mixing are even, and the consumption of controlling described nano level function powder is 2～15% of described this body weight of epoxy zinc-enriched paint, promptly gets the product nano composite epoxy zinc-enriched paint.Effect was better when the median size of the function powder of nano level described in the step a was 30～50nm.The consumption of the function powder of nano level described in the step c is that 3 of described this body weight of epoxy zinc-enriched paint～6% o'clock effect is better.
Embodiment one
Be averaged particle diameter 30nm titanium oxide, coat processing with organic surface treatment agent sodium laurate, its consumption is 1% of a nano-powder titania weight, Resins, epoxy takes a morsel earlier, add a certain amount of treated titan oxide particles, and in sand mill, disperse, make slurries; With these slurries and former epoxy zinc-enriched paint body thorough mixing evenly after, promptly get nano composite epoxy zinc-enriched paint, the add-on of titanium oxide is 2% of a coating weight.In hot-dip galvanizing sheet steel, after drying at room temperature, model A must film with the even roller coating of this coating.Give over to benchmark test.
Embodiment two
Be averaged particle diameter 30nm titanium oxide, coat processing with organic surface treatment agent sodium laurate, its consumption is 3% of a nano-powder titania weight, Resins, epoxy takes a morsel earlier, add a certain amount of treated titan oxide particles, and in sand mill, disperse, make slurries; With these slurries and former epoxy zinc-enriched paint body thorough mixing evenly after, promptly get nano composite epoxy zinc-enriched paint, the add-on of titanium oxide is 3% of a coating weight.In hot-dip galvanizing sheet steel, after drying at room temperature, model B must film with the even roller coating of this coating.Give over to benchmark test.
Embodiment three
Be averaged particle diameter 30nm titanium oxide, coat processing with organic surface treatment agent sodium laurate, its consumption is 3% of a nano-powder titania weight, Resins, epoxy takes a morsel earlier, add a certain amount of treated titan oxide particles, and in sand mill, disperse, make slurries; With these slurries and former epoxy zinc-enriched paint body thorough mixing evenly after, promptly get nano composite epoxy zinc-enriched paint, the add-on of titanium oxide is 4% of a coating weight.In hot-dip galvanizing sheet steel, after drying at room temperature, model C must film with the even roller coating of this coating.Give over to benchmark test.
Embodiment four
Be averaged particle diameter 50nm silicon oxide, coat processing with organic surface treatment agent sodium laurate, its consumption is 10% of a nano-powder silicon oxide weight, Resins, epoxy takes a morsel earlier, add a certain amount of treated titan oxide particles, and in sand mill, disperse, make slurries; With these slurries and former epoxy zinc-enriched paint body thorough mixing evenly after, promptly get nano composite epoxy zinc-enriched paint, the add-on of silicon oxide is 15% of a coating weight.In hot-dip galvanizing sheet steel, after drying at room temperature, model D must film with the even roller coating of this coating.Give over to benchmark test.
The rich zinc of the nano composite epoxy of embodiment 1～4 preparation is coated with lamina membranacea carries out salt-fog test, and be coated with the lamina membranacea performance with conventional epoxy zinc-rich and compare, see Table 1.
Film salt spray resistance and scratch performance evaluation of table 1 epoxy zinc-rich
| The evaluation index numbering | Solidity to corrosion (salt-fog test) | Scratch resistant |
| Epoxy zinc-rich is coated with lamina membranacea A | 500 hours | 0 |
| Epoxy zinc-rich is coated with lamina membranacea B | 500 hours | 0 |
| Epoxy zinc-rich is coated with lamina membranacea C | 500 hours | 0 |
| Epoxy zinc-rich is coated with lamina membranacea D | 400 hours | 0 |
| Conventional epoxy zinc-rich is coated with lamina membranacea | 200 hours | 2 |
From test-results as seen, obtained significant raising through film corrosion resistance nature and resistance to marring of nano-material modified epoxy zinc-rich.
Above said content only is the basic explanation of the present invention under conceiving, and according to any equivalent transformation that technical scheme of the present invention is done, all should belong to protection scope of the present invention.
Claims (3)
1. the preparation method of an anti-wear, anti-corrosion nano composite epoxy zinc-enriched paint comprises the following steps:
A. be averaged the nano level function powder of particle diameter less than 100nm, with the organic surface active agent sodium laurate it is coated processing, described nano level function powder is selected from the mixture of a kind of in titanium oxide, silicon oxide, zinc oxide, nickel oxide, aluminum oxide, chromic oxide, manganese oxide or the barium sulfate or two kinds, and the consumption of described organic surface active agent sodium laurate is 1～10% of a described nano level function powder weight;
B. the above-mentioned nano level function powder that coats through the organic surface active agent sodium laurate is carried out ball milling, sand milling or emulsify at a high speed dispersion treatment at a small amount of Resins, epoxy, the nano level function powder is uniformly dispersed in Resins, epoxy, make slurries;
C. slurries that step b is made and epoxy zinc-enriched paint body thorough mixing are even, and the consumption of controlling described nano level function powder is 2～15% of described this body weight of epoxy zinc-enriched paint, promptly gets the product nano composite epoxy zinc-enriched paint.
2. according to the preparation method of the described a kind of anti-wear, anti-corrosion nano composite epoxy zinc-enriched paint of claim 1, it is characterized in that: the median size of the function powder of nano level described in the step a is 30～50nm.
3. according to the preparation method of the described a kind of anti-wear, anti-corrosion nano composite epoxy zinc-enriched paint of claim 1, it is characterized in that: the consumption of the function powder of nano level described in the step c is 3～6% of described this body weight of epoxy zinc-enriched paint.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100252883A CN100469847C (en) | 2006-03-30 | 2006-03-30 | Process for preparing anti-wear, anti-corrosion nano composite epoxy zinc-enriched paint |
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| CNB2006100252883A CN100469847C (en) | 2006-03-30 | 2006-03-30 | Process for preparing anti-wear, anti-corrosion nano composite epoxy zinc-enriched paint |
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| CN1821326A true CN1821326A (en) | 2006-08-23 |
| CN100469847C CN100469847C (en) | 2009-03-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977744A (en) * | 2012-12-13 | 2013-03-20 | 天津大学 | Nano-composite marine anti-fouling coating material and preparation method thereof |
| CN103651569A (en) * | 2013-11-26 | 2014-03-26 | 南通职业大学 | Technology for preparing surface-coated modified Ag/ZnO nano composite antibacterial agent |
| CN105176158A (en) * | 2015-10-10 | 2015-12-23 | 丁海棠 | Anticorrosive coating of steel structure |
| CN109181480A (en) * | 2018-08-30 | 2019-01-11 | 浙江海洋大学 | A kind of epoxy zinc-enriched paint comprising modifying titanium dioxide and preparation method and purposes |
| CN115820077A (en) * | 2022-12-23 | 2023-03-21 | 江门市皇宙实业有限公司 | Wear-resistant powder coating and preparation method thereof |
-
2006
- 2006-03-30 CN CNB2006100252883A patent/CN100469847C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977744A (en) * | 2012-12-13 | 2013-03-20 | 天津大学 | Nano-composite marine anti-fouling coating material and preparation method thereof |
| CN103651569A (en) * | 2013-11-26 | 2014-03-26 | 南通职业大学 | Technology for preparing surface-coated modified Ag/ZnO nano composite antibacterial agent |
| CN105176158A (en) * | 2015-10-10 | 2015-12-23 | 丁海棠 | Anticorrosive coating of steel structure |
| CN105176158B (en) * | 2015-10-10 | 2017-05-31 | 丁海棠 | A kind of anticorrosive coating of steel construction |
| CN109181480A (en) * | 2018-08-30 | 2019-01-11 | 浙江海洋大学 | A kind of epoxy zinc-enriched paint comprising modifying titanium dioxide and preparation method and purposes |
| CN115820077A (en) * | 2022-12-23 | 2023-03-21 | 江门市皇宙实业有限公司 | Wear-resistant powder coating and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN100469847C (en) | 2009-03-18 |
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Granted publication date: 20090318 Termination date: 20130330 |