CN100584912C - High temperature resistant anti-corrosion coating and its preparation method - Google Patents
High temperature resistant anti-corrosion coating and its preparation method Download PDFInfo
- Publication number
- CN100584912C CN100584912C CN200910009032A CN200910009032A CN100584912C CN 100584912 C CN100584912 C CN 100584912C CN 200910009032 A CN200910009032 A CN 200910009032A CN 200910009032 A CN200910009032 A CN 200910009032A CN 100584912 C CN100584912 C CN 100584912C
- Authority
- CN
- China
- Prior art keywords
- coating
- temperature resistant
- parts
- isocyanate
- epoxy silicone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention relates to a high-temperature resistant and anticorrosive coating and a preparation method thereof. The coating uses organic phosphate and isocyanate modified epoxy organic siliconresin as main materials. The epoxy organic siliconresin has good high-temperature resistant and anticorrosive performance; the introduction of organic phosphate radical not only can improve the high-temperature resistant performance of the resin, but also can improve the anticorrosive performance of the later period of the coating; during the film forming process of the coating, the organic phosphate radical and substrate metal can form a compact phosphate protecting film to lead the surface of the metal to be passivated so as prevent water molecules and salt ions from being contacted with the metal, thus leading the coating to have good anticorrosive function; isocyanate radical is introduced and reacts with epoxy radical to generate high-temperature resistant polyoxazolidine radical, thus improving the high-temperature resistant performance of the coating; the modified epoxy organic siliconresin is used by being matched with a high-temperature resistant pigment, thus leading the coating to be capable of not only keeping proper physical and mechanical performances, but also having good anticorrosive performance under the environment of high temperature of 550 DEG C.
Description
Technical field
The present invention relates to a kind of fire resistant anticorrosive paint, particularly anti-550 ℃ of pyritous modified epoxy organosilicon anticorrosive coatings and preparation method thereof.
Background technology
In recent years, along with the develop rapidly of new and high technology, more and more higher to the requirement of high-temperature-resistant structure material and high-temperature resistant coating, and facts have proved, high-temperature structural material will be accomplished existing good hot strength, possesses good anti-oxidant, corrosion resistance again and but compares difficulty, and the expense costliness.By contrast, high-temperature resistant coating has but possessed above two kinds of advantages, both can improve the high thermal resistance of material, possesses certain erosion resistance again.So since the 1950's, people are in the ascendant always to the research of high-temperature resistant coating, and obtained remarkable progress.
High-temperature resistant coating generally be meant temperature in paint film nondiscoloration more than 200 ℃, do not come off, still can keep the coating of suitable physical and mechanical properties.High-temperature resistant coating is of a great variety, and the heat resisting temperature of traditional inorganic type high-temperature resistant coating can reach 400-1000 ℃, even higher.Inorganic type high-temperature resistant coating flame resistivity is good, hardness is high, but paint film is more crisp, and water tolerance is bad before completely solidified, and is also strict to the requirement of substrate treatment.At present, generally adopt the organic coating of the method preparation high comprehensive performance that in organic resin, adds mineral filler.That organic anti-corrosive coating commonly used has is epoxide coal bituminous, epoxy glass flake and multi-functional rust-inhibiting paint etc., but heatproof has only 150 ℃ usually, and degraded or carbonization can take place during higher temperature, causes coating to lose efficacy.In former study, mainly lay particular emphasis on the thermotolerance or the erosion resistance of coating, and to both high temperature resistant corrosion resistant coating research was less.Patent 200710098668.4 discloses a kind of epoxy organosilicon anticorrosive coating, and the salt fog cumulative time can reach 360h, excellent corrosion resistance, but be not improved simultaneously aspect thermotolerance and the erosion resistance.
Summary of the invention
The present invention seeks to overcome the shortcoming of coating in the past, a kind of high temperature resistant anticorrosion modified epoxy organosilicon coating and preparation method thereof is provided, this coating can keep suitable physical and mechanical properties can have good Corrosion Protection again under hot environment.Phosphoric acid ester and modified polyisocyanate epoxy silicone resin have superpower fire resistant anticorrosive performance.The main body of resin is an epoxy silicone resin, epoxy silicone resin itself has good fire resistant anticorrosive performance, the thermodynamic stability of the Si-O-Si key in its structure is good, can improve coating heat resistance, add epoxide group and improve the snappiness of resin, improve greatly with the sticking power of base material.Introduce bound phosphate groups; active organosilicon group in itself and the epoxy silicone resin reacts; also improved the heat resistance of resin; later stage Corrosion Protection for coating also increases simultaneously; coating is in film process, and bound phosphate groups and substrate metal form fine and close phosphate coating, makes the metallic surface that passivation take place; can prevent water molecules and salt ion and metallic contact, thereby make coating have good corrosion proof function.Introduce isocyanate groups, it generates with epoxide group reaction in the epoxy silicone resin and gathers the oxazolidone group, and the oxazolidone group also has great high-temperature resistant, thereby has improved the resistance to elevated temperatures of coating.Phosphoric acid ester and modified polyisocyanate epoxy silicone resin and high-temperature resisting pigment are used, and can reach the ideal effect.
For realizing this purpose, the present invention has adopted following technical scheme:
Prescription: (following unit is a weight part)
A, phosphoric acid ester and isocyanate-modified epoxy silicone resin prescription
Epoxy silicone resin 100
Isocyanic ester 2～10
Phosphate ester monomer 2～10
Dimethylbenzene 20～50
B, formulation for coating material
Phosphoric acid ester and isocyanate-modified epoxy silicone resin 30～70
High-temperature resisting pigment 40～70
Filler 10～25
Auxiliary agent 0～5
Solvent 10～25
Coating preparation technology:
A, phosphoric acid ester and isocyanate-modified epoxy silicone resin preparation technology
Thermometer is being housed, add epoxy silicone resin in the reaction vessel of stirring, backflow and Dropping feeder, open stirring and be warming up to 70～90 ℃, in 2～3 hours, evenly drip the mixed solution and the isocyanic ester of phosphoric acid ester and dimethylbenzene then, after dropwising, be incubated 3～4 hours and finish the synthetic of resin.
The preparation of b, coating
Phosphoric acid ester and isocyanate-modified epoxy silicone resin, high-temperature resisting pigment, filler and solvent etc. are mixed and sand milling below 50 microns, adds auxiliary agent to fineness then, stirring obtains coating.Behind workpiece, curing can reach optimum performance in 0.5 hour under 200 ℃ with made coating application.
Its structure of described phosphate ester monomer
Described isocyanic ester is selected from TDI, MDI and IPDI;
Described high-temperature resisting pigment is that enamel is black, the mixture of aluminium powder, zinc powder and carbon black; Described filler is mica powder and talcous mixture; Auxiliary agent comprises silane coupling agent and thermo-stabilizer; Solvent is the mixture of dimethylbenzene and butanols.
Embodiment
Below in conjunction with specific embodiment the present invention is described further, but is not limited to this.
In the reaction vessel that thermometer, stirring, backflow and Dropping feeder are housed, add 100 parts of epoxy silicone resin ES-06, open stirring and be warming up to 70～90 ℃, in 2～3 hours, evenly drip the mixed solution of 8 parts of phosphate ester monomer PAM-100 and 40 parts of dimethylbenzene, and 8 parts of TDI, after dropwising, be incubated 3～4 hours and finish the synthetic of resin, make phosphoric acid ester and isocyanate-modified epoxy silicone resin ESPN-100.
Use phosphate ester monomer PAM-200 and PAM-300 to prepare phosphoric acid ester and fluoropolymer modified epoxy organosilicon resin ESPN-200 and ESPN-300 respectively, the preparation method is identical with ESPN-100.
Table 1 (embodiment unit is a weight part in the table)
| Component | Material name | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment | Embodiment 6 | Comparative Examples |
| Resin | ESPN-100 ESPN-200 ESPN-300 Es-06 | 40 / 0 / | / 40 / / | / / 40 / | 20 20 / / | 20 / 20 / | / 20 20 / | / / / 40 |
| High-temperature resisting pigment | Enamel is deceived aluminium powder zinc powder carbon black | 33 3 8 1 | 33 3 8 1 | 33 3 8 1 | 33 3 8 1 | 33 3 8 1 | 33 3 8 1 | 33 3 8 1 |
| Filler | The mica powder talcum powder | 15 5 | 15 5 | 15 5 | 15 5 | 15 5 | 15 5 | 15 5 |
| Auxiliary agent | The KH-550 thermo-stabilizer | 0.5 0.5 | 0.5 0.5 | 0.5 0.5 | 0.5 0.5 | 0.3 0.7 | 0.5 0.5 | 0.5 0.5 |
| Solvent | The dimethylbenzene butanols | 12 5 | 12 5 | 12 5 | 12 5 | 12 5 | 12 5 | 12 5 |
The raw material that uses in the embodiment of the invention: phosphate ester monomer (PAM-100, PAM-200, PAM-300), French Rhodia produces; Epoxy silicone resin ES-06, the Wujiang City, Jiangsu Province resin company limited that makes a concerted effort produces; Fluoropolymer is the perfluor alkyl ethide methacrylic ester, and too general (Shanghai) fluorine chemical trading company produces; It is that Shanghai Tianguang Chemical Factory produces that enamel is deceived; The barium zinc heat stabilizer is that Changzhou Jia Ren standing grain chemistry company limited produces; Silane resin acceptor kh-550 is that NanJing Shuguang Chemical Group Co., Ltd. produces.
Technology: phosphoric acid ester and isocyanate-modified epoxy silicone resin, high-temperature resisting pigment, filler and solvent etc. are mixed and sand milling below 50 microns, adds auxiliary agent to fineness then by above-mentioned prescription requirement, be adjusted to appropriate viscosity, obtain coating.
Made paint spay-coating in steel plate, is solidified 1 hour (dried film thickness is controlled at 40 ± 5 μ m) down at 200 ℃, under 550 ℃, carry out 5 hours high temperature resistant experiment then.Model after high temperature resistant experiment is drawn fork by the relevant regulations among standard GB/T 1771-2007 and to model, does salt spray resistance and detects.Detected result sees Table 2.
Table 2
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Comparative Examples |
| Anti-550 ℃ of high temperature coating surface situation after 5 hours | The surface intact, paint film do not have come off, no variable color | The surface intact, paint film do not have come off, no variable color | The surface intact, paint film do not have come off, no variable color | The surface intact, paint film do not have come off, no variable color | The surface intact, paint film do not have come off, no variable color | The surface intact, paint film do not have come off, no variable color | The intact nothing of paint film comes off, a little variable color |
| Salt fog resistance, day | 6 days cut both sides corrosion 2mm | 7 days cut both sides corrosion 2mm | 6 days cut both sides corrosion 2mm | 7 days cut both sides corrosion 2mm | 6 days cut both sides corrosion 2mm | 10 days cut both sides corrosion 2mm | 1 day cut both sides corrosion 2mm |
As can be seen from Table 2, the over-all properties of phosphoric acid ester of being developed and isocyanate-modified epoxy organosilicon fire resistant anticorrosive paint (resistance to elevated temperatures, salt fog resistance) is better than common epoxy organosilicon coating.
Claims (5)
1. fire resistant anticorrosive paint, comprise: 30～70 parts of phosphoric acid ester and isocyanate-modified epoxy silicone resins, 40～70 parts of high-temperature resisting pigments, 10～25 parts of fillers, 0～5 part of auxiliary agent, 10～25 parts of solvents, it is characterized in that described phosphoric acid ester and isocyanate-modified epoxy silicone resin be by 100 parts of epoxy silicone resins, 2～10 parts of isocyanic ester, 2～10 parts of phosphate ester monomers and dimethylbenzene are made for 20～50 parts.
2. coating according to claim 1 is characterized in that the general structure of described phosphate ester monomer is
3. coating according to claim 1 is characterized in that described auxiliary agent comprises silane coupling agent and thermo-stabilizer.
4. coating according to claim 1 is characterized in that described isocyanic ester can be selected from TDI, MDI and IPDI.
5. the preparation method of each described coating of claim 1-4 is characterized in that, its preparation technology comprises:
The preparation of a, phosphoric acid ester and isocyanate-modified epoxy silicone resin
Thermometer is being housed, add epoxy silicone resin in the reaction vessel of stirring, backflow and Dropping feeder, open stirring and be warming up to 70～90 ℃, in 2～3 hours, evenly drip the mixture of phosphate ester monomer and dimethylbenzene, and isocyanate solution, after dropwising, be incubated 3～4 hours and finish the synthetic of resin;
The preparation of b, coating
Phosphoric acid ester and the even also sand milling of isocyanate-modified epoxy silicone resin, high-temperature resisting pigment, filler and solvent below 50 microns, are added auxiliary agent to fineness then, and stirring obtains coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910009032A CN100584912C (en) | 2009-02-13 | 2009-02-13 | High temperature resistant anti-corrosion coating and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910009032A CN100584912C (en) | 2009-02-13 | 2009-02-13 | High temperature resistant anti-corrosion coating and its preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101486876A CN101486876A (en) | 2009-07-22 |
| CN100584912C true CN100584912C (en) | 2010-01-27 |
Family
ID=40889943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910009032A Expired - Fee Related CN100584912C (en) | 2009-02-13 | 2009-02-13 | High temperature resistant anti-corrosion coating and its preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100584912C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101964B (en) * | 2011-01-06 | 2012-10-03 | 杭州油漆有限公司 | Organic silicon modified epoxy heat-resistant and anti-corrosive coating and preparation method thereof |
| CN103342957B (en) * | 2013-06-25 | 2015-05-20 | 中国船舶重工集团公司第七二五研究所 | Fluoropolymer anticorrosive coating for fastener and preparation method thereof |
| CN109810624B (en) * | 2017-11-20 | 2020-08-25 | 比亚迪股份有限公司 | Fluorine-containing conformal coating composition and preparation method and application thereof |
| CN109971224A (en) * | 2017-12-28 | 2019-07-05 | 东莞市广信知识产权服务有限公司 | A kind of new Heat Resistant Coating |
| CN108384412A (en) * | 2018-03-22 | 2018-08-10 | 苏州新区特氟龙塑料制品厂 | A kind of high heat-proof epoxy coating |
| CN111995934A (en) * | 2020-08-27 | 2020-11-27 | 日照阳光电力设计有限公司 | Zinc-rich rusty paint and preparation method thereof |
| CN114933838B (en) * | 2022-05-26 | 2023-08-25 | 厦门双瑞船舶涂料有限公司 | Epoxy organosilicon modified phenolic epoxy temperature-resistant anticorrosive paint and preparation method thereof |
| CN116463026A (en) * | 2023-04-30 | 2023-07-21 | 上海巴世夫化工涂料有限公司 | High-temperature-resistant water-based paint |
-
2009
- 2009-02-13 CN CN200910009032A patent/CN100584912C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101486876A (en) | 2009-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100584911C (en) | High temperature resistant anti-corrosion modified epoxy silicone coating | |
| CN100584912C (en) | High temperature resistant anti-corrosion coating and its preparation method | |
| CN102101964B (en) | Organic silicon modified epoxy heat-resistant and anti-corrosive coating and preparation method thereof | |
| CN109181486B (en) | Low-VOC epoxy primer and preparation method thereof | |
| CN101081962A (en) | Epoxy resin modified organosilicon fire-resistant anticorrosion paint | |
| CN102108245A (en) | Waterborne polyester modified epoxy polyurethane anticorrosive paint and preparation method thereof | |
| CN108546495B (en) | Ultraviolet-resistant corrosion-resistant organic silicon fluorine epoxy resin powder coating | |
| CN103602114A (en) | Wear-resistant pressure-resistant epoxy paint and preparation method thereof | |
| CN104903412A (en) | Multi-stage method for the coating of steel prior to hot forming | |
| CN102702973A (en) | Anti-corrosive paint | |
| CN107936778A (en) | The preparation method of high-temperature resistant pipeline anti-corrosion epoxy powder coating | |
| CN102337067A (en) | Aqueous epoxy antirust paint | |
| CN111218205A (en) | Water-based high-temperature-resistant coating for high-temperature coating and preparation method thereof | |
| CN112094514B (en) | Water-based ceramic coating and preparation method thereof | |
| CN110628028B (en) | Preparation and application of organic silicon modified cardanol polyglycidyl ether resin | |
| CN113278338A (en) | High-toughness low-energy-consumption graphene biological-based heavy-duty anticorrosive coating and preparation method thereof | |
| CN112521591A (en) | Polyester resin with lasting high temperature resistance and excellent hardness for powder coating and preparation method thereof | |
| CN110982385B (en) | Special temperature-resistant coating for corrosion prevention in heat storage tank | |
| CN103589202A (en) | Special primer for automobile and preparation method thereof | |
| CN107177284A (en) | A kind of chromium-free Dyclo paint of radiation proof and preparation method thereof | |
| CN107163785A (en) | A kind of chromium-free Dyclo paint containing white carbon and preparation method thereof | |
| CN106433449A (en) | Graphene-type high-temperature-resistant anti-corrosion paint and preparation method | |
| CN112143335A (en) | High-flash-point high-solid-content safe flaky zinc-based zinc-rich coating and preparation method thereof | |
| CN103589287A (en) | Single-component epoxy primer and preparation method thereof | |
| CN103602109A (en) | Special outdoor paint and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU RONGCHANG NEW MATERIAL TECHNOLOGY CO., LTD Free format text: FORMER NAME: JIANGSU RONGCHANG CHEMICAL CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Yangzhong City, Jiangsu province Zhenjiang city 212221 West Road No. 32 Jiangsu North Town Rongchang new Mstar Technology Ltd Patentee after: Jiangsu Rongchang New Material Technology Co., Ltd. Address before: Yangzhong City, Jiangsu province Zhenjiang City West 212221 town Gangbei Road No. 32 Patentee before: Jiangsu Rongchang Chemical Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20180213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |