CN104177987A - Cathodic disbanding resistant anti-corrosion epoxy coating and making method thereof - Google Patents
Cathodic disbanding resistant anti-corrosion epoxy coating and making method thereof Download PDFInfo
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Abstract
The invention relates to a cathodic disbanding resistant anti-corrosion epoxy coating and a making method thereof; bisphenol A epoxy resin, novolac epoxy and petroleum resin are added into a xylene and n-butanol mixed solvent, then wet sericite powder, barite powder, titanium dioxide, carbon black, fumed silica, an active diluent, a silane coupling agent, silicone oil and fluorocarbon modified polyacrylate are added for mixing, stirring and grinding to prepare an A component of the cathodic disbanding resistant anti-corrosion epoxy coating, cashew nut shell oil modified phenolic amine and modified aliphatic amine are mixed to prepare a B component, when in use, the A component and the B component are mixed; the cathodic disbanding resistant anti-corrosion epoxy coating has good compatibility with an electrochemical protection system, has excellent cathodic disbanding resistant performance and good adhesion, flexibility, sea water resistance and chemical resistance, and can be used for corrosion protection of splash zones and full immersion zones of ships, offshore platforms and marine steel structures and the like.
Description
Technical field
The present invention relates to the etch-proof epoxy coating of a kind of resistance to cathodic disbonding and manufacture method, can be used for the splash zone of boats and ships, ocean platform and extra large work steel structure etc. and the protection against corrosion of submerged zone.
Background technology
Existing common anticorrosive coating is for the splash zone of boats and ships, ocean platform and extra large work steel structure etc. and the protection against corrosion of submerged zone; there is good sea water resistance; its weak point is poor to additional cathodic protection system consistency; easily there is cathodic disbonding destruction in coating in the time using galvanic protection, and coating is firmly crisp, sticking power is lower.
Summary of the invention
The object of the invention is to avoid above-mentioned weak point of the prior art and provide one can improve the resistance to cathodic disbonding performance of coating, there is coating and the manufacture method of good sticking power, snappiness, seawater corrosion resistance.
The etch-proof epoxy coating of the resistance to cathodic disbonding of one of the present invention, it is characterized in that being formed by A component and B component, wherein A component is by 1 weight part bisphenol A epoxide resin, 0.05～0.3 weight part aldehyde type epoxy resin, 0.1～0.5 weight part petroleum resin, 0.2～0.5 weight part dimethylbenzene, 0.1～0.4 weight part propyl carbinol, 0.75～1.5 weight part wet method sericite in powder, 0.75～1.5 weight part ground barium sulfate, 0.1～0.8 weight part titanium dioxide, 0.005～0.03 weight part carbon black, 0.01～0.04 weight part aerosil, 0.05～0.2 weight part reactive thinner, 0.02～0.1 weight part silane coupling agent, the fluorine-carbon modified polyacrylic ester composition of 0.005～0.04 weight part silicone oil and 0.01～0.04 weight part, B component is mixed by the cashew nut oil modified phenolic aldehyde amine of 0.6～1 weight part and 0.1～0.3 weight part modified fatty amine, when use, is mixed by 1 weight part A component and 0.1～0.3 weight part B component.
The preferably etch-proof epoxy coating of a kind of resistance to cathodic disbonding, it is characterized in that being formed by A component and B component, wherein A component is by 1 weight part bisphenol A epoxide resin, 0.15 weight part aldehyde type epoxy resin, 0.2 weight part petroleum resin, 0.4 weight part dimethylbenzene, 0.2 weight part propyl carbinol, 1 weight part wet method sericite in powder, 1 weight part ground barium sulfate, 0.5 weight part titanium dioxide, 0.01 weight part carbon black, 0.02 weight part aerosil, 0.1 weight part reactive thinner, 0.05 weight part silane coupling agent, the fluorine-carbon modified polyacrylic ester composition of 0.015 weight part silicone oil and 0.02 weight part, B component is mixed by the cashew nut oil modified phenolic aldehyde amine of 0.8 weight part and 0.2 weight part modified fatty amine, when use, is mixed by 1 weight part A component and 0.15 weight part B component.
The etch-proof epoxy coating manufacture method of a kind of resistance to cathodic disbonding, it is characterized in that 1 weight part bisphenol A epoxide resin, 0.05～0.3 weight part aldehyde type epoxy resin, 0.1～0.5 weight part C9 petroleum resin, 0.05～0.2 weight part reactive thinner, 0.02～0.1 weight part silane coupling agent, the fluorine-carbon modified polyacrylic ester of 0.005～0.04 weight part silicone oil and 0.01～0.04 weight part joins 0.2～0.5 weight part dimethylbenzene, dispersing and dissolving in addition in the mixed solvent of 0.1～0.4 weight part propyl carbinol, in the situation that stirring, add 0.75～1.5 weight part wet method sericite in powder, 0.75～1.5 weight part ground barium sulfate, 0.1～0.8 weight part titanium dioxide, 0.01～0.04 weight part aerosil, 0.005～0.03 weight part carbon black, after high-speed stirring 0.5h, then grind 0.5～1h with sand mill and make A component, make B component by the cashew nut oil modified phenolic aldehyde amine of 0.6～1 weight part and 0.1～0.3 weight part modified fatty amine, when use, mixed by 1 weight part A component and 0.1～0.3 weight part B component.
The preferably etch-proof epoxy coating manufacture method of resistance to cathodic disbonding, it is characterized in that 1 weight part bisphenol A epoxide resin, 0.15 weight part aldehyde type epoxy resin, 0.2 weight part petroleum resin, 0.1 weight part reactive thinner, 0.05 weight part silane coupling agent, the fluorine-carbon modified polyacrylic ester of 0.015 weight part silicone oil and 0.02 weight part joins 0.4 weight part dimethylbenzene, dispersing and dissolving in addition in the mixed solvent of 0.2 weight part propyl carbinol, in the situation that stirring, add 1 weight part wet method sericite in powder, 1 weight part ground barium sulfate, 0.5 weight part titanium dioxide, 0.02 weight part aerosil, 0.01 weight part carbon black, after high-speed stirring 0.5h, then grind 0.5～1h with sand mill and make A component, make B component by the cashew nut oil modified phenolic aldehyde amine of 0.8 weight part and 0.2 weight part modified fatty amine, when use, mixed by 1 weight part A component and 0.15 weight part B component.
Protection against corrosion epoxy coating and the manufacture method of a kind of resistance to cathodic disbonding of the present invention, by bisphenol A epoxide resin, novolac epoxy and petroleum resin, add a small amount of auxiliary agent, and some amount color stuffing is formulated.The novolac epoxy using in manufacturing processed is compared with bisphenol A type epoxy resin, owing to containing 2 above epoxy group(ing) in molecular structure, after solidifying, cross-linking density is high, so Tg and hardness ratio bisphenol A type epoxy resin is high, permeability resistance good, natural antikathode separability also just improves.Petroleum resin can improve the exudation resistance of coating and the sticking power with base material significantly, therefore can stop the transmission of corrosive medium at coating/substrate interface, reduce the speed of cathodic disbonding.And, can also significantly improve the snappiness of epoxy resin.Wet method sericite in powder is sheet structure, has extended the permeation pathway of ion pair paint film, has reduced the rate of permeation of water and oxygen, can improve the resistance to cathodic disbonding performance of coating.Ground barium sulfate fillibility is good, good leveling property, can also increase hardness and the wear resistance of coating.Titanium dioxide, the carbon black using in pigment has good performance such as good chemical stability, acid-alkali-corrosive-resisting etc.Two kinds of different activities genes that contain in silane coupling agent are amino and oxygen base, are used for coupling organic polymer and mineral filler, can between coating and steel substrate, form one connection tie, thereby can greatly improve the sticking power of coating and base material.Aerosil can improve suspension and the dispersiveness of color stuffing in system, has improved the stability in storage of coating, also contributes to improve thixotropy and the application property of coating.Silicon oil surface tension is little, and chemical stability is good, nontoxic again, as long as add a small amount of silicone oil just to have good defoamer effect.Fluorine-carbon modified polyacrylate solution can reduce the surface tension of coating system, provides good ground wetting, has improved flowing and levelling property of coating.
The present invention's beneficial effect compared with prior art
1, the etch-proof epoxy coating of the resistance to cathodic disbonding of one of the present invention, its coating has good sticking power, snappiness, shock-resistance, resistance to acids and bases, sea water resistance and salt fog resistance, especially resistance to cathodic disbonding performance is at-1.5V, 65 DEG C, the cathodic disbonding distance≤15mm under 30d sea conditions.Therefore, can be used for the splash zone of boats and ships, ocean platform and extra large work steel structure etc. and the protection against corrosion of submerged zone.
2, the resistance to cathodic disbonding protection against corrosion of one of the present invention epoxy coating manufacture method, technique is simple, need not specific installation, cost performance is high.
Embodiment
Embodiment 1
The resistance to cathodic disbonding protection against corrosion of one of the present invention epoxy coating manufacture method.In stainless charging basket, by 1 weight part bisphenol A epoxide resin, 0.15 weight part aldehyde type epoxy resin, 0.2 weight part petroleum resin, 0.1 weight part reactive thinner, 0.05 weight part silane coupling agent, the fluorine-carbon modified polyacrylic ester of 0.015 weight part silicone oil and 0.02 weight part joins 0.4 weight part dimethylbenzene, dispersing and dissolving in addition in the mixed solvent of 0.2 weight part propyl carbinol, in the situation that stirring, add 1 weight part wet method sericite in powder, 1 weight part ground barium sulfate, 0.5 weight part titanium dioxide, 0.02 weight part aerosil, 0.01 weight part carbon black, after high-speed stirring 0.5h, then grind 0.5～1h with sand mill and make A component, make B component by the cashew nut oil modified phenolic aldehyde amine of 0.8 weight part and 0.2 weight part modified fatty amine, when use, mixed by 1 weight part A component and 0.15 weight part B component.Its film flexibility 1mm; Shock strength 50cm; Adhesion 1 grade; Chemicals-resistant immersion property (10% acid, 10% alkali, seawater) 4200h coating is intact; Artificial acceleration salt-fog test 4200h coating is intact; Resistance to cathodic disbonding performance is at-1.5V, and 65 DEG C, the cathodic disbonding under 30d sea conditions is apart from 13mm.
Embodiment 2
The resistance to cathodic disbonding protection against corrosion of one of the present invention epoxy coating manufacture method.In stainless charging basket, by 1 weight part bisphenol A epoxide resin, 0.2 weight part aldehyde type epoxy resin, 0.15 weight part petroleum resin, 0.15 weight part reactive thinner, 0.08 weight part silane coupling agent, the fluorine-carbon modified polyacrylic ester of 0.02 weight part silicone oil and 0.03 weight part joins 0.5 weight part dimethylbenzene, dispersing and dissolving in addition in the mixed solvent of 0.1 weight part propyl carbinol, in the situation that stirring, add 0.9 weight part wet method sericite in powder, 0.8 weight part ground barium sulfate, 0.4 weight part titanium dioxide, 0.03 weight part aerosil, 0.02 weight part carbon black, after high-speed stirring 0.5h, then grind 0.5～1h with sand mill and make A component, make B component by the cashew nut oil modified phenolic aldehyde amine of 0.6 weight part and 0.4 weight part modified fatty amine, when use, mixed by 1 weight part A component and 0.2 weight part B component.Its film flexibility 1mm; Shock strength 50cm; Adhesion 1 grade; Chemicals-resistant immersion property (10% acid, 10% alkali, seawater) 4200h coating is intact; Artificial acceleration salt-fog test 4200h coating is intact; Resistance to cathodic disbonding performance is at-1.5V, and 65 DEG C, the cathodic disbonding under 30d sea conditions is apart from 13mm.
Claims (4)
1. the etch-proof epoxy coating of resistance to cathodic disbonding, it is characterized in that: formed by A component and B component, wherein A component is by 1 weight part bisphenol A epoxide resin, 0.05～0.3 weight part aldehyde type epoxy resin, 0.1～0.5 weight part petroleum resin, 0.2～0.5 weight part dimethylbenzene, 0.1～0.4 weight part propyl carbinol, 0.75～1.5 weight part wet method sericite in powder, 0.75～1.5 weight part ground barium sulfate, 0.1～0.8 weight part titanium dioxide, 0.005～0.03 weight part carbon black, 0.01～0.04 weight part aerosil, 0.05～0.2 weight part reactive thinner, 0.02～0.1 weight part silane coupling agent, the fluorine-carbon modified polyacrylic ester composition of 0.005～0.04 weight part silicone oil and 0.01～0.04 weight part, B component is mixed by the cashew nut oil modified phenolic aldehyde amine of 0.6～1 weight part and 0.1～0.3 weight part modified fatty amine, when use, is mixed by 1 weight part A component and 0.1～0.3 weight part B component.
2. the etch-proof epoxy coating of the resistance to cathodic disbonding of one according to claim 1, it is characterized in that being formed by A component and B component, wherein A component is by 1 weight part bisphenol A epoxide resin, 0.15 weight part aldehyde type epoxy resin, 0.2 weight part petroleum resin, 0.4 weight part dimethylbenzene, 0.2 weight part propyl carbinol, 1 weight part wet method sericite in powder, 1 weight part ground barium sulfate, 0.5 weight part titanium dioxide, 0.01 weight part carbon black, 0.02 weight part aerosil, 0.1 weight part reactive thinner, 0.05 weight part silane coupling agent, the fluorine-carbon modified polyacrylic ester composition of 0.015 weight part silicone oil and 0.02 weight part, B component is mixed by the cashew nut oil modified phenolic aldehyde amine of 0.8 weight part and 0.2 weight part modified fatty amine, when use, is mixed by 1 weight part A component and 0.15 weight part B component.
3. the etch-proof epoxy coating manufacture method of resistance to cathodic disbonding claimed in claim 1, it is characterized in that 1 weight part bisphenol A epoxide resin, 0.05～0.3 weight part aldehyde type epoxy resin, 0.1～0.5 weight part petroleum resin, 0.05～0.2 weight part reactive thinner, 0.02～0.1 weight part silane coupling agent, the fluorine-carbon modified polyacrylic ester of 0.005～0.04 weight part silicone oil and 0.01～0.04 weight part joins 0.2～0.5 weight part dimethylbenzene, dispersing and dissolving in addition in the mixed solvent of 0.1～0.4 weight part propyl carbinol, in the situation that stirring, add 0.75～1.5 weight part wet method sericite in powder, 0.75～1.5 weight part ground barium sulfate, 0.1～0.8 weight part titanium dioxide, 0.01～0.04 weight part aerosil, 0.005～0.03 weight part carbon black, after high-speed stirring 0.5h, then grind 0.5～1h with sand mill and make A component, make B component by the cashew nut oil modified phenolic aldehyde amine of 0.6～1 weight part and 0.1～0.3 weight part modified fatty amine, when use, mixed by 1 weight part A component and 0.1～0.3 weight part B component.
4. the etch-proof epoxy coating manufacture method of resistance to cathodic disbonding according to claim 3, it is characterized in that 1 weight part bisphenol A epoxide resin, 0.15 weight part aldehyde type epoxy resin, 0.2 weight part petroleum resin, 0.1 weight part reactive thinner, 0.05 weight part silane coupling agent, the fluorine-carbon modified polyacrylic ester of 0.015 weight part silicone oil and 0.02 weight part joins 0.4 weight part dimethylbenzene, dispersing and dissolving in addition in the mixed solvent of 0.2 weight part propyl carbinol, in the situation that stirring, add 1 weight part wet method sericite in powder, 1 weight part ground barium sulfate, 0.5 weight part titanium dioxide, 0.02 weight part aerosil, 0.01 weight part carbon black, after high-speed stirring 0.5h, then grind 0.5～1h with sand mill and make A component, make B component by the cashew nut oil modified phenolic aldehyde amine of 0.8 weight part and 0.2 weight part modified fatty amine, when use, mixed by 1 weight part A component and 0.15 weight part B component.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419569A (en) * | 2016-01-13 | 2016-03-23 | 中国科学院金属研究所 | Humidity-heat-resistant long-acting anticorrosion coating |
| CN106189678A (en) * | 2015-05-06 | 2016-12-07 | 中国石油天然气集团公司 | A kind of steel plate with low surface treatment epoxy paint coatings and manufacture method thereof |
| CN106189677A (en) * | 2015-05-06 | 2016-12-07 | 中国石油天然气集团公司 | A kind of low surface treatment epoxy coating and manufacture method thereof |
| CN106634453A (en) * | 2016-12-28 | 2017-05-10 | 中昊北方涂料工业研究设计院有限公司 | Preparation method of heavy corrosion protection primer resin |
| CN110330767A (en) * | 2019-07-11 | 2019-10-15 | 江苏宝力泰新材料科技有限公司 | Low temperature curing type prepreg used for repairing pipe and preparation method thereof, performance test and application |
| CN110564192A (en) * | 2019-08-29 | 2019-12-13 | 铜陵市永锐电器成套设备有限责任公司 | high-low voltage switch cabinet anticorrosion technology |
| CN118185420A (en) * | 2024-03-22 | 2024-06-14 | 湖南亚大丰晖新材料有限公司 | Polyaniline anticorrosive paint for marine ship ballast water tank, and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352171A (en) * | 2011-09-16 | 2012-02-15 | 中华制漆（深圳）有限公司 | Novel environment-friendly coating with superhigh marine environment corrosion resistance and preparation method and application thereof |
| CN102618148A (en) * | 2012-03-30 | 2012-08-01 | 北京红狮漆业有限公司 | Epoxy coating and preparation method and application thereof |
| CN102775880A (en) * | 2012-08-24 | 2012-11-14 | 西北永新化工股份有限公司 | Low-temperature quick-drying type epoxy paste paint and preparation method thereof |
| JP2013076080A (en) * | 2012-11-26 | 2013-04-25 | Dic Corp | Epoxy resin and epoxy resin composition using the same |
-
2013
- 2013-05-23 CN CN201310196773.7A patent/CN104177987A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352171A (en) * | 2011-09-16 | 2012-02-15 | 中华制漆（深圳）有限公司 | Novel environment-friendly coating with superhigh marine environment corrosion resistance and preparation method and application thereof |
| CN102618148A (en) * | 2012-03-30 | 2012-08-01 | 北京红狮漆业有限公司 | Epoxy coating and preparation method and application thereof |
| CN102775880A (en) * | 2012-08-24 | 2012-11-14 | 西北永新化工股份有限公司 | Low-temperature quick-drying type epoxy paste paint and preparation method thereof |
| JP2013076080A (en) * | 2012-11-26 | 2013-04-25 | Dic Corp | Epoxy resin and epoxy resin composition using the same |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106189678A (en) * | 2015-05-06 | 2016-12-07 | 中国石油天然气集团公司 | A kind of steel plate with low surface treatment epoxy paint coatings and manufacture method thereof |
| CN106189677A (en) * | 2015-05-06 | 2016-12-07 | 中国石油天然气集团公司 | A kind of low surface treatment epoxy coating and manufacture method thereof |
| CN106189677B (en) * | 2015-05-06 | 2018-05-08 | 中国石油天然气集团公司 | A kind of low surface treatment epoxy coating and its manufacture method |
| CN106189678B (en) * | 2015-05-06 | 2018-05-08 | 中国石油天然气集团公司 | A kind of steel plate and its manufacture method with low surface treatment epoxy paint coatings |
| CN105419569A (en) * | 2016-01-13 | 2016-03-23 | 中国科学院金属研究所 | Humidity-heat-resistant long-acting anticorrosion coating |
| CN106634453A (en) * | 2016-12-28 | 2017-05-10 | 中昊北方涂料工业研究设计院有限公司 | Preparation method of heavy corrosion protection primer resin |
| CN110330767A (en) * | 2019-07-11 | 2019-10-15 | 江苏宝力泰新材料科技有限公司 | Low temperature curing type prepreg used for repairing pipe and preparation method thereof, performance test and application |
| CN110564192A (en) * | 2019-08-29 | 2019-12-13 | 铜陵市永锐电器成套设备有限责任公司 | high-low voltage switch cabinet anticorrosion technology |
| CN118185420A (en) * | 2024-03-22 | 2024-06-14 | 湖南亚大丰晖新材料有限公司 | Polyaniline anticorrosive paint for marine ship ballast water tank, and preparation method and application thereof |
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Application publication date: 20141203 |