CN101397817B - Coating method of underwater curing anti-corrosive antifouling paint for sea facilities - Google Patents
Coating method of underwater curing anti-corrosive antifouling paint for sea facilities Download PDFInfo
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- CN101397817B CN101397817B CN2008101736727A CN200810173672A CN101397817B CN 101397817 B CN101397817 B CN 101397817B CN 2008101736727 A CN2008101736727 A CN 2008101736727A CN 200810173672 A CN200810173672 A CN 200810173672A CN 101397817 B CN101397817 B CN 101397817B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The invention discloses a coating method of a marine facility underwater-curing anti-corrosion and antifouling paint, which comprises the following steps: A. marine attachments on underwater facilities are scooped; B. an underwater construction anti-corrosion primer is prepared according to the following weight ratio: the weight ratio of a component A to a component B equals to 100 to 30-40; after being mixed evenly, the underwater construction anti-corrosion primer is coated on the underwater facilities; and C. two hours later, an underwater construction anti-corrosion and antifouling finishpaint is prepared according to the following weight ratio: the weight ratio of the component A to the component B equals to 100 to 25-30; after being mixed evenly, the underwater construction anti-corrosion and antifouling finish paint is coated on the primer obtained in the step B. The coating method has convenient construction and can be blade coating, wind coating and roller coating. The underwater-curing anti-corrosion and antifouling coating obtained by the coating method has quite strong curing adhesion, excellent anti-corrosion and antifouling performances in oceans and high construction efficiency.
Description
Technical field
The present invention relates to a kind of coating process of special anticorrosive anti-fouling paint, specifically, the present invention is a kind of coating process of underwater curing anti-corrosive antifouling paint for sea facilities.
Background technology
At present, concrete structure and the steel work of long period of soaking in seawater often is subjected to the problem of marine corrosion and marine pollution.The marine corrosion that is subjected to is mainly from the infiltration of chlorion, and the marine pollution that is subjected to is then mainly from the absorption of marine growths such as conch, marine alga.There is the defective that subaqueous construction can not roller coat in existing epoxy-acid amides curing system.
Summary of the invention
The coating process that the purpose of this invention is to provide a kind of underwater curing anti-corrosive antifouling paint for sea facilities.
Solve the anticorrosion and antifouling problem of concrete and steel work, adopt application to have the good coating of anticorrosion and antifouling performance, be that a kind of cost is low, economical and efficient, practical antiseptic and antifouling method.
Based on above goal of the invention, the present invention adopts following technical scheme:
A kind of coating process of underwater curing anti-corrosive antifouling paint for sea facilities comprises following steps:
A. shovel falls the ocean attachment on the underwater facility;
B. with the subaqueous construction anti-corrosion primer by weight the first component: second component=100:30～40 prepare, and are applied on the underwater facility after stirring;
C. at interval after 2 hours, with subaqueous construction anticorrosion and antifouling finish paint by weight the first component: second component=100:25～30 prepare, and are applied to after stirring on the priming paint of step B gained;
Wherein,
Described first component comprises the composition of following weight portion:
47～76 parts of epoxy resin
0.3～0.8 part of modified organic silicon swell soil
4.2～4.5 parts in plasticizing agent
17.0～17.5 parts of mica powders
0.1～0.2 part of silicone defoaming agent;
The epoxy hardener that contains 95～100wt% in the described second component is in the weight of second component.
Among the described step B, with scraper directly with the priming paint blade coating on underwater facility; Perhaps, with roller brush directly with the priming paint roller coat on underwater facility.
Among the described step C, with scraper directly with the finish paint blade coating on the priming paint of step B gained; Perhaps, with roller brush directly with the finish paint blade coating on the priming paint of step B gained.
Advantage of the present invention is:
Coating process of the present invention can blade coating, twine and be coated with, also can roller coat, and easy construction, it is extremely strong that the underwater curing anticorrosion and antifouling lacquer coat of gained solidifies adhesive power, anticorrosion and antifouling excellent performance in the ocean, efficiency of construction height.
The specific embodiment
Raw material is selected:
1085 extraordinary curing compound, Changsha illuminate biochemical technology Co., Ltd to be produced, and the trade mark full name of the said firm is " the powerful fully under water low temperature epoxy hardener of 1085A type ".This curing compound is modified as the hydrophobic group based on the modification of special modified amine curing agent knot branch with hydrophilic radical, has solved to occur the difficult problem that " albefaction " phenomenon and intensity descend significantly under water when epoxy adhesive uses; Compare with dried environment use, strength retention is close to 100%.
The technical specification of 1085 extraordinary curing compound:
1, outward appearance: light yellow thick, translucent liquid.
2, amine value: 200-250mgKOH/g.
3, viscosity: 200-300mPas (25 ℃).
4, proportion: 1.02-1.04 (20 ℃).
5, freezing point :-20 ℃, all can solidify more than-8 ℃.
6, toxicity: LD50〉20000mg/k.
7,25 ℃ solid at the beginning of 5-7 hour, 6-7 days are solid entirely.
Plasticizing agent NX-2013, Cardolite Chemical (Zhuhai) Co., Ltd. produces.
Technical indicator:
Epoxide equivalent: 500
Brookfield viscosity: 40-70cps/25 ℃
Add nanofarad colourity: 9
Solid content: 100%
Hydrolyzable chlorine content: 1%.
The F881--organic modified bentonite, the blue or green rainbow swell soil in Linan, Zhejiang company produces.
Technical indicator is as follows:
Color and luster: light yellow
Outward appearance: fine powder
Water content :≤3%
Density: 1.6g/cm
3
Amphoteric surfactant 170, manufacturer: Linan, Zhejiang coating additive factory.
Technical indicator:
Outward appearance: weak yellow liquid
Admittedly contain: 50 ± 2%
Density: 1.03g/cm
3
BYK331 is an organic silicon modified by polyether, and German Bi Ke company produces.
Technical indicator:
Outward appearance: weak yellow liquid
Admittedly contain: 96 ± 2%
Density: 1.04g/cm
3
Embodiment
Concrete coating process (use the scraper blade coating, touch to twine after being coated with glass fabric again and be coated with, be coated with the roller brush roll) is as follows:
One, earlier shovels ocean attachment on the underwater facility with pneumatic tool.
Two, with the subaqueous construction anti-corrosion primer by the first component: second component=100:40 prepares, and after stirring, on underwater facility, or brushes direct roller coat on underwater facility with roller with the direct blade coating of scraper.
Three, at interval after 2 hours, with subaqueous construction anticorrosion and antifouling finish paint by the first component: second component=100:25 prepares, and after stirring, on the preceding road of the direct blade coating of scraper priming paint, or brushes direct roller coat with roller and gets final product on preceding road priming paint.
The prescription of subaqueous construction anti-corrosion primer and preparation
The first component:
76 kilograms of E44 epoxy resin
4.2 kilograms in NX-2013 plasticizing agent
17.2 kilograms of mica powders
0.8 kilogram of modified alta-mud anti-settling agent F881
170 0.3 kilograms of wetting dispersing agents
0.1 kilogram of silicone defoaming agent BYK331
0.8 kilogram of solvent-free coal tar pitch
The second component:
9.9 kilograms in 1085 extraordinary curing compound
0.1 kilogram of amino silicane coupling agent BM21
Press following weight ratio during construction:
First component: curing compound=100:40
Formulation analysis:
1.E44 be solvent-free low-molecular-weight epoxy resin, and modest viscosity (viscosity PaS/25 ℃: 6-10), the too high or too low underwater coating compound that all is unfavorable for of viscosity.
2.NX-2013 plasticizing agent is to contain the cashew nut oil modified epoxy resin diluent of epoxy radicals, plasticization effect is good, and is little to the resistance to chemical corrosion influence of system, is difficult for producing migration of plasticizer problem.
3. selecting mica powder for use is the anticorrosive property of enhancing system, because mica powder is laminal filter, produces the labyrinth effect in paint film layer, has improved the permeability resistance to corrosion circle matter exponentially.
4.881F-be anti-settling agent efficiently, also be consistency modifiers, the denseness that makes paint systems is in comparatively desirable scope.
5.170 be a kind of filler wetting dispersing agent, the cost performance height.
6.BYK331 be a kind of defoamer efficiently, prevent that paint from producing bubble when producing and construct.
7. solvent-free coal tar can be used as one and very easily disperses toner, also can be used as preservative enhancers, because of coal tar pitch has extremely strong hydrophobicity.
8. select solid 1085 curing compound for use, be that the epoxy adhesive result of use prepared because of common epoxy hardener is not ideal enough, can only carry out bonding on the adherend surface of drying, if meet water or surface moisture agent or when using, the adhesion strength that has sharply descends under water, have in addition can't bond, when general underwater curing agent is used under water, compare with using in dry environment, adhesion strength reduces by more than 50 at least, " whiting " phenomenon occurs.
1085 types strong epoxy curing agent fully under water are a kind of curing compound of surging, and it and water do not react, gluing it the time water got rid of outside the adherend and epoxy resin reaction and knot sticking.It can not only be in wet environment and bonding under water, and its adhesion strength compares with dry environment, and conservation rate almost is absolutely.
The testing result of subaqueous construction anti-corrosion primer is as shown in table 1.
The testing result of table 1 subaqueous construction anti-corrosion primer
| Project | Index | Result of the test | Test method |
| Paint film color and outward appearance | Tone is indefinite, and is smooth | Light gray, paint film is smooth | Visual |
| Solid content, % is not less than | 96 | 98.8 | GB/T1725-79(89) |
| Fineness, um is not more than | 60 | 55 | GB/T1724-79 (89) first method |
| Drying time, h | GB/T1728-79 (89) first method | ||
| Surface drying | 0.5 | 0.5 | |
| Do solid work | 2 | 1 | |
| Hardness is not less than | 0.5 | 0.6 | GB/T1730-93 (B method) |
| Pliability, mm is not more than | 3 | 3 | GB/T1731-93 |
| Adhesive power is not more than | 2 | 1 | GB/1720-79(89) |
| Salt water resistance, 6d | Non-foaming non-corrosive | Non-foaming non-corrosive | GB/T1763-79(89) |
| Salt spray resistance, 240h | 1 grade | 1 grade | GB/T1771-91 |
Anticorrosion and antifouling finish paint under water
The first component:
47 kilograms of 827 epoxy resin
4.5 kilograms in NX-2013 plasticizing agent
9 kilograms of titanium dioxides
Yellow 1 kilogram of lemon
17 kilograms of the compound anti-staining agent of zinc-copper
17 kilograms of mica powders
3.8 kilograms in zinc oxide
0.3 kilogram of modified organic silicon swell soil F881
0.2 kilogram of silicone defoaming agent BYK331
0.2 kilogram of solvent-free coal tar pitch
The second component all is 1085 epoxy hardeners.
Press first component: curing compound=100:25 during construction
Formulation analysis:
1, the 827th, solvent-free low-molecular-weight epoxy resin, viscosity is lower, and is more excellent to the wetting dispersion of color stuffing.
2, the NX-2013 plasticizing agent is to contain the epoxy radicals waist to cross shell oil modified epoxy thinner, and plasticization effect is good, and is little to the resistance to chemical corrosion influence of system, is difficult for producing migration of plasticizer problem.
3, selecting mica powder for use is the anticorrosive property of enhancing system, because mica powder is laminal filter, produces the labyrinth effect in paint film layer, has improved the permeability resistance to corrosion circle matter exponentially.
4,881F-is an anti-settling agent efficiently, also is consistency modifiers, and the denseness that makes paint systems is in comparatively desirable scope.
5, BYK331 is a kind of defoamer efficiently, prevents that paint from producing bubble when producing and construct.
6, compound anti-staining agent is a kind of efficient anti-staining agent, can restrain the too fast growth of marine growth.
7, solvent-free coal tar can be used as one and very easily disperses toner, also can be used as preservative enhancers, because of coal tar pitch has extremely strong hydrophobicity.
8, select 1085 curing compound for use, be that the epoxy adhesive result of use prepared because of common epoxy hardener is not ideal enough, can only carry out bonding on the adherend surface of drying, if meet water or surface moisture agent or when using, the adhesion strength that has sharply descends under water, have in addition can't bond, when general underwater curing agent is used under water, compare with using in dry environment, adhesion strength reduces by more than 50 at least, " whiting " phenomenon occurs.
1085 types strong epoxy curing agent fully under water are a kind of hydrophobic curing compound, and it and water do not react, gluing it the time water got rid of outside the adherend and epoxy resin reaction and knot sticking.It can not only be in wet environment and bonding under water, and its adhesion strength is compared conservation rate and is close to absolutely with dry environment.
The testing result of anticorrosion and antifouling finish paint is as shown in table 2 under water.
Table 2 is the testing result of anticorrosion and antifouling finish paint under water
| Project | Index | Result of the test | Test method |
| Paint film color and outward appearance | Tone is indefinite, and is smooth | Light gray, paint film is smooth | Visual |
| Solid content, % is not less than | 96 | 98.8 | GB/T1725-79(89) |
| Fineness, um is not more than | 40 | 35 | GB/T1724-79 (89) first method |
| Drying time, h | GB/T1728-79 (89) first method | ||
| Surface drying | 0.5 | 0.5 | |
| Do solid work | 2 | 1 | |
| Hardness is not less than | 0.5 | 0.6 | GB/T1730-93 (B method) |
| Pliability, mm is not more than | 3 | 3 | GB/T1731-93 |
| Adhesive power is not more than | 2 | 1 | GB/1720-79(89) |
| Salt water resistance, 40d | Non-foaming non-corrosive | Non-foaming non-corrosive | GB/T1763-79(89) |
| Alkali resistance, 30d30% (m/m) NaOH | Non-foaming non-corrosive | Non-foaming non-corrosive | GB/T1763-79(89) |
| Acid resistance, 50d30% (m/m) H 2SO 4 | Non-foaming non-corrosive | Non-foaming non-corrosive | GB/T1763-79(89) |
| Salt spray resistance, 240h | 1 grade | 1 grade | GB/T1771-91 |
| Pollution resistance | No marine organisms adhered in 200 days | Qualified |
More than the coating process of underwater curing anti-corrosive antifouling paint for sea facilities provided by the present invention is described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (5)
1. the coating process of a underwater curing anti-corrosive antifouling paint for sea facilities is characterized in that, comprises following steps:
A. shovel falls the ocean attachment on the underwater facility;
B. with the subaqueous construction anti-corrosion primer by weight the first first component: the first second component=prepare at 100: 40 is applied on the underwater facility after stirring;
The described first first component prescription is: E44 epoxy resin is that 76 kilograms, 4.2 kilograms in NX-2013 plasticizing agent, 17.2 kilograms of mica powders, modified alta-mud anti-settling agent F881 are that 0.8 kilogram, wetting dispersing agent 170 are that 0.3 kilogram, silicone defoaming agent BYK331 are that 0.1 kilogram, solvent-free coal tar pitch are 0.8 kilogram; The described first second component prescription is: 1,085 9.9 kilograms in extraordinary curing compound, amino silicane coupling agent BM21 are 0.1 kilogram;
C. at interval after 2 hours, with subaqueous construction anticorrosion and antifouling finish paint by weight the second first component: the second second component=prepare at 100: 25 is applied to after stirring on the priming paint of step B gained;
Wherein, the described second first component prescription is: 827 epoxy resin are that 47 kilograms, NX-2013 plasticizing agent are that 4.5 kilograms, titanium dioxide are that 9 kilograms, lemon Huang are that 1 kilogram, the compound anti-staining agent of zinc-copper are that 17 kilograms, mica powder are that 17 kilograms, zinc oxide are that 3.8 kilograms, organic modified bentonite F881 are that 0.3 kilogram, silicone defoaming agent BYK331 are that 0.2 kilogram, solvent-free coal tar pitch are 0.2 kilogram; The described second second component all is 1085 epoxy hardeners.
2. the coating process of underwater curing anti-corrosive antifouling paint for sea facilities according to claim 1 is characterized in that: among the described step B, with scraper directly with the priming paint blade coating on underwater facility.
3. the coating process of underwater curing anti-corrosive antifouling paint for sea facilities according to claim 1 is characterized in that: among the described step B, with the roller brush directly with the priming paint roller coat on underwater facility.
4. the coating process of underwater curing anti-corrosive antifouling paint for sea facilities according to claim 1 is characterized in that: among the described step C, with scraper directly with the finish paint blade coating on the priming paint of step B gained.
5. the coating process of underwater curing anti-corrosive antifouling paint for sea facilities according to claim 1 is characterized in that: among the described step C, with the roller brush directly with the finish paint blade coating on the priming paint of step B gained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101736727A CN101397817B (en) | 2008-11-07 | 2008-11-07 | Coating method of underwater curing anti-corrosive antifouling paint for sea facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101736727A CN101397817B (en) | 2008-11-07 | 2008-11-07 | Coating method of underwater curing anti-corrosive antifouling paint for sea facilities |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101397817A CN101397817A (en) | 2009-04-01 |
| CN101397817B true CN101397817B (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101736727A Expired - Fee Related CN101397817B (en) | 2008-11-07 | 2008-11-07 | Coating method of underwater curing anti-corrosive antifouling paint for sea facilities |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103717682B (en) * | 2011-06-30 | 2017-03-08 | 汉伯公司 | Fouling control coating compositions containing polysiloxanes and pendant hydrophilic oligomer/polymer part |
| CN104234214A (en) * | 2014-07-30 | 2014-12-24 | 汪峻峰 | Construction method for anticorrosive paint for building bars |
| CN104693966A (en) * | 2015-02-09 | 2015-06-10 | 中国船舶重工集团公司第七二五研究所 | Preparation method of solvent-free anticorrosive paint for underwater construction |
| CN109306230A (en) * | 2018-10-10 | 2019-02-05 | 广州市修米德科技有限公司 | A kind of strong adhesive force environmental protection coating material that anti-pollution is excellent |
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